成都一老人珍藏20年乾隆玉是块玻璃

成都一老人珍藏20年乾隆玉是块玻璃

9月28日,珠宝鉴定师向胡庆介绍玉石的真假辨识

　　专家

　　这不是什么宝玉,只不过是一块玻璃而已

　　检验师

　　太明显了,是注胶染色的翡翠,可能只值几十元钱

　　当事人

　　心结总算是了啦,玉这个东西,自己喜欢就好

　　年近70岁的成都老人胡庆(化名),20年前花3万元买了一块“乾隆玉”,这些钱在当时足够买一套房子.2007年,他曾去河南参加过鉴宝活动.经过鉴定,这块“乾隆玉”实际上是一块被注胶染色的假玉,可能仅值几十元钱.

　　这么多年来,胡庆都不相信玉坠是假的.昨日下午,他小心翼翼地用纸包起了自己的玉坠,来到草塘东路的一家珠宝店进行鉴定.

　　纠结20年 乾隆玉到底是真是假？

　　1990年,50岁的胡庆喜欢上了收集玉石,这一天,他在送仙桥附近一家古玩店看上一个“福禄寿”玉坠.玉坠长约5厘米,边缘打磨和制作工艺较为粗犷,很像是乾隆年间的玉器.

　　在老板的推荐下,胡庆将妻子和自己的存款凑在一起,花3万元买下这块玉.在把玩过程中,胡庆买了不少关于玉石鉴定的书籍看,并咨询了不少行家,有人说这块玉只是一块玻璃,也有人说这块玉价值连城.此后,玉的真假便成了胡庆的心结.

　　首次鉴定 专家说就是一块玻璃

　　2007年,胡庆乘车来到郑州,带着自己的玉坠参加了一个鉴宝节目.专家拿起这块“乾隆玉”看了一下,花了不到1分钟就得出结论.

　　“这不是什么宝玉,只不过是一块玻璃而已.”专家的这句话让胡庆的心都凉了,在回家的路上,他几近崩溃,将所有的注意力都集中在玉上,把衣服和帽子都弄丢了.

　　他一度想把玉从火车的窗子上扔出去,但又觉得不甘心,毕竟玉跟了自己这么久.于是,他准备再次鉴定,期待专家的说法能够改变,说它是一块真玉.

　　再次鉴定 检验师说或值几十元

　　昨日下午,胡庆小心地包好“乾隆玉”,又拿上一条15年前花6000多元买的玉质佛珠,来到草堂北路一家珠宝店鉴定.

　　检验师拿起“乾隆玉”在阳光下看了一下,脱口而出,“太明显了,是注胶染色的翡翠,可能只值几十元钱.”看到胡庆有些不太相信,检验师又在灯光和显微镜下再次对玉进行了观察,同样得出了假玉的结论.

　　“您再给我看看这个.”感到有些失望的胡庆,又把佛珠交给检验师.“这个是染色的马来玉,质地还不如那个‘乾隆玉’.”检验师的一席话,让胡庆第二次受到打击.

　　不过,他怔了两秒后,还是将两块玉小心地包好,笑着说:“心结总算是了啦,玉这个东西,自己喜欢就好.”这次检验后,胡庆没有像在郑州时那样郁闷,在和检验师道别后,他默默地离开现场.

　　温馨提示

　　在电筒下识别假玉

　　珠宝鉴定师说,消费者可以用一种简单的方法鉴定假玉.将染色翡翠置于电筒下,会发现翡翠被染色后,玉的裂纹处颜色最深,绿色沿着裂纹充填在裂纹附近的晶粒间隙中,呈丝网状分布.而天然翡翠的裂纹和孔隙都是没有颜色的,这种方法可以对大部分“地摊货”和普通染色玉进行鉴别.

　　华西都市报记者崔燃实习生杨雪摄影吴小川

来源:新浪收藏


TAG:成都一老人珍藏20年乾隆玉是块玻璃 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

Tips on how to Obtain Womens Purses Womens Leather Handbag On Sale

To begin with we need to determine what the Women’s bag or Women’s handbags are to be used for. As Women’s purses are available in different designs, dimensions, good quality and unique substance. The size from the purse is often categorized inside the following way, Day Purse use, Informal Handbag use, Elegant Purse use and Common handbag use.

Day Purses could well be a handbag that is definitely used to take to function, it should be large enough to carry considerably, however relaxed plenty of to hold round the full day. As this bag would effectively comprise everything from make-up individual hygiene things, and a purse or wallet that contains documents, ID, credit cards paper documents like expenditures that have to be paid out. This is also the bag that should be around her shoulder so that her palms are however no cost to complete above points or have other purchasing bags. So this bag will certainly have an more than the shoulder holster. As this handbag may additionally we accustomed to take to perform it should be a high quality purse. High quality meaning a lot more durable there for it ought to be leather, or maybe a fantastic imitation leather bag. The imitation leather bags are definitely not lengthy lasting because they will have on skinny for becoming handled a great deal, so in cases like this it might be wise to go for leather. It will also have dividers, to produce it much easier to obtain important things from the handbag. Commonly it will also be considered a very good to select a bag that’s wider rather than deeper, as there may be absolutely nothing far more aggravating than going fishing in your handbag, and nevertheless having to get rid of 50 percent its contains in advance of you find your keys.

Casual Purses one particular would use just for entertaining times, or routine times. Once again this purse will contain all the identical components that the Day handbag can have, so that contains a lot more expenses or paper operate, or none at all for the enjoyable day. This handbag normally takes on the many configurations and dimensions to match one’s taste or clothes. This can be a enjoyment bag. Let’s take this bag browsing on the films to your park. This handbag is often use to include excess apparel, yet modest plenty of to not be bulky, just little objects like a t-shirt or an additional pair of panties, or tooth brush and paste, or children’s goods, a little toy, diaper and wipes. This bag could also be considered a funky purse compact and colourful, or fashion handbag, wholesale which might be so preferred with teenagers. The girl generation will probably be using colorful material combos which might be also exquisite. All relying the way you have dressed for ones enjoyment or regimen day.

Sophisticated handbags might be described in two diverse categories. Tasteful day outfit, sharp and smooth, fashionable and pricey. A single for evening use, large vogue evening dresses. This handbag is typically compact and doesn’t contain significantly by any means, possibly a lipstick and make-up and tissue, unexpected emergency hard cash or credit score card. This bag doesn’t have an through the shoulder holster, It is the original maintain as part of your hand, handbag. This purse is usually producing a assertion, as it will complement everything else which is heading on, the sneakers the gloves the outfit.

Normal purses are only what it states it is really common, the following the expression bag is utilized additional than purse, if it truly is biggish it can be a bag. This could possibly be your seaside bag your kiddy bag your shopping bag. They can be commonly big bags. Product or plastic high quality possibly even washable. It’s the overnight bag it is the significant handbag you take on the aircraft to stuff up to attainable into. It’s going to also have and around the shoulder holster to aid using the pounds.

Tips on how to Obtain Womens Purses Womens Leather Handbag On Sale

TAG:obtain purses womens

Who do you trust to connect your IPs with China capital?

Who do you trust to connect your IPs with China capital?

BEIJING – China is big. China is not one. China has a poor record of protecting intellectual property. It also has plenty of government funding at the central, provincial and municipal levels to go along with a massive domestic market for new technologies and products.

Add up the plusses and minuses and the Chinese market is a mixed bag.

So far, only a few Western companies and universities have managed to navigate China’s IP minefield to form successful partnerships and grab market share. “China is complicated,” Dongmin Chen, dean in Peking University’s (PKU) School of Innovation and Entrepreneurship, noted during a recent interview with EE Times.

That’s where Chen enters the picture.


Prof. Chen in his office at Peking University
TAG:Peking University Open Innovation Platform China IPs

London Calling: Stressed Europe lashing out?

London Calling: Stressed Europe lashing out?

Readers both within and outside Europe will know that the continent is enduring what Charles Dickens called hard times. European institutions and governments are seeking to impose austerity measures on a public that is increasingly left-leaning and hostile to such measures.

Many other counties around the world are suffering too. However, in Europe the differences between smaller and poorer nations at the periphery of the continent at the larger and wealthier nations at the center is, having the effect of unbalancing the washing machine spin cycle of the Euro currency experiment, with potentially disastrous consequences.

And so it should be no surprise that bureaucrats in Brussels also look externally.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Microsoft and Boeing could be two companies set to feel the ire of European Union

It is expected that software giant Microsoft Corp. will be charged with antitrust offences having failed to offer European users of its Windows operating system a choice of web browsers, which it was told to do in 2009 for a period of at least five years.

Back in July Joaquin Almunia, vice president of the Commission in charge of competition policy, said: "I trusted the company's reports were accurate. But it seems that was not the case, so we have immediately taken action. If following our investigation, the infringement is confirmed, Microsoft should expect sanctions."

Next: Microsoft, Boeing in its sights
TAG:London Calling Peter Clarke European Union European Commission Europe Boeing Microsoft

Samsung, ST sign foundry deal

Samsung, ST sign foundry deal

LONDON – STMicroelectronics has selected Samsung's foundry business unit for the production of ICs using a 32/28-nm high-K metal gate manufacturing process.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

The deal provides ST with alternative supply of 28-nm silicon. In the past ST has worked with Taiwan Semiconductor Manufacturing Co. Ltd. in the past as a supplier of leading-edge chips but during 2012 the Taiwanese foundry has been unable to meet the demand for 28-nm CMOS from its customers leading a number of them to announce plans to find other sources of silicon.

ST is also a manufacturer of leading-edge chips itself. ST has opted to manufacture circuits using a fully-depleted silicon-on-insulator (FDSOI) process for leading-edge chips it makes at 28- and going on to 20-nm. It remains unclear is whether the deal with Samsung has any implications about ST's commitment to the FDSOI process it has chosen to pioneer itself.

ST has been working with Samsung's foundry for some time and the relationship has already produced tape-outs of a dozen system-on-chip devices for mobile, consumer and networking applications. Tape-out represents the completion of the design phase although it can take several months for a chip to pass through manufacturing and be approved for sale.

"We have successfully started production of STMicroelectronics' new-generation 32/28nm SoC products," said Kwang-Hyun Kim, executive vice president with Samsung's foundry business unit, in a statement. "A foundry relationship with ST demonstrates our commitment to advanced process technology and our 32/28nm HKMG process-technology leadership. We have aggressively ramped 32/28nm capacity and will continue to deliver the most advanced process solutions to our customers."

"In addition to delivering waves of innovative new products, another key to ST's success in each of our target markets is working with industry leaders," said Jean-Marc Chery, chief-technology officer for STMicroelectronics, in the same statement. He added that ST and Samsung had worked together on process development in a body called the International Semiconductor Development Alliance.


Related links and articles:

ARM TechCon probes road to 14-nm ICs

ST, ST-Ericsson commit to SOI, says Soitec

Intel, rivals gird for IC manufacturing showdown

ST opens up 28-nm, 20-nm FDSOI with GlobalFoundries


TAG:Samsung ST foundry process semiconductor IC chip SoC mobile networking consumer HKMG FDSOI

力拓价值550万美元阿盖尔粉红钻翡翠项链在香港展出

力拓价值550万美元阿盖尔粉红钻翡翠项链在香港展出

「The Argyle Empress」阿盖尔粉红钻翡翠项链

力拓（Rio Tinto）首度将罕有的阿盖尔粉红钻配以优质翡翠制成项链，并于早前在香港展出。

由周大福设计的「The Argyle Empress」阿盖尔粉红钻翡翠项链，以43克拉罕有阿盖尔粉红钻制成香港茶（Hong Kong Camellia）花朵造型，配以33颗珍贵翡翠玉珠作为绿叶衬托。当中五颗粉红钻是该品牌在过去五年极具代表性的珍贵收藏，整件首饰价值550万美元。

阿盖尔粉红钻经理 Josephine Johnson 表示：「The Argyle Empress 呈献世上两大稀有瑰宝，是东方与西方融为一体的心血结晶。它是首度为新兴中国市场而特别打造，势将成为瞩目的传世之作。」

TAG:力拓 阿盖尔粉钻 翡翠钻石项链

Slideshow: Intel carves new path to x86 tablets

Slideshow: Intel carves new path to x86 tablets

SAN FRANCISCO – “This was arguably our biggest effort at concurrent engineering to date,” crowed Stephen L. Smith, Intel’s director of tablet development at the launch of Clover Trail, its latest Atom-based SoC.

The PC giant designed the dual-core, dual threaded 1.8-GHz chip in tandem with a full a handful of partners who worked on a full tablet reference design for the chip. The 10.1-inch tablet design came with a full Intel software stack of BIOS, drivers and firmware for Microsoft’s Windows 8.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Intel, Microsoft, Lenovo and one unnamed customer created the reference system and shared the bill of materials with six other OEMs.. Acer, Asus, Dell, Hewlett-Packard, Lenovo, Samsung and ZTE also showed systems, each with variations, most ready to roll for the formal launch of Win 8 at the end of October.

Asus, Lenovo and Samsung also showed tablets with Wacom digitizers for pen input with a stylus. Acer and HP tablets docked into keyboards that housed a secondary battery.

Asus showed a model with an 11.6-inch LG display delivering 600-nits brightness. The Acer tablet supports 3G and near-field communications. All the systems include keyboard docks that essentially turn them into small notebooks.

The big question is whether the race to Clover Trail leads to a significantly bigger share for x86 tablets in a market dominated by the Apple iPad. It’s a complex issue given Microsoft is also enabling the first generation of ARM-based Windows tablets—and competing with its own Surface tablet.

“I think [the Win 8 Atom tablets] have a very different proposition from the Android and Apple folks in providing a single device that does the content consumption tablets are good at and creation that PCs are good at,” said Nathan Brookwood, principal of Inside64 (Saratoga, Calif.). “The open question is if that resonates with buyers."

“This is a really good start for Intel in tablets,” said Patrick Moorhead, principal of Moor Insights & Strategy (Austin, Texas). “Enterprise IT will be taking a very serious look at these tablets and potentially pause their iPad rollouts if they aren’t too far down that road."


Tom Butler, Lenovo product marketing manager, which helped define the reference design, shows its ThinkPad Tablet II.

TAG:Clover Trail Windows 8 Tablets Intel X86 Asus Lenovo HP Acer Samsung Google Android Apple IPad

Wi-Fi chip maker Celeno attracts more investors

Wi-Fi chip maker Celeno attracts more investors

MANHASSET, N.Y. -- Wi-Fi chip specialist Celeno Communications said it has raised an additional $24 million in its latest funding round.

The over-subscribed round included current investors Cisco, Liberty Global, Greylock Partners and Pitango Venture Capital along with new investor Vintage Investment Partners. The latest round brings the company’s total funding to more than $68 million.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

The fabless chip maker (Ra'anana, Israel) develops high-performance Wi-Fi chips and software for HD multimedia and data home networking applications.

Celeno said the new funding will be used to expand development of its 802.11ac project. The company claims its chips are deployed with over 75 service providers, including Deutsche Telekom, Liberty Global, UPC, Bouygues Telecom and China Telecom.
TAG:Celeno Communications

Intel debuts next-generation Atom for tablets

Intel debuts next-generation Atom for tablets

SAN JOSE, Calif. – Staking out a position in tablets, Intel Corp. will announce a next-generation Atom system-on-chip (SoC) and as many as a dozen tablets using it at an event in San Francisco Thursday (Sept. 27).

Intel will describe Clover Trail, a dual-core Atom chip geared for smartphones and tablets. Companies including Acer, Asustek, Dell, Hewlett-Packard, Lenovo, Samsung and ZTE are expected to show a mix of tablets and ultrabooks that can be converted into tablets, all using the chip.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Intel took some heat for not releasing any news about its mobile Atom processors at its annual Intel Developer Forum (IDF) earlier this month. However, the company did display four Windows 8 tablets including models from Acer, HP and Lenovo using its Atom chips there.

At IDF, Intel said Clover Trail will have twice the CPU and graphics performance of the single-core Atom chips in its current 1.6-GHz, 32-nm Medfield platform. The 32-nm Clover Trail will come in two versions—one hitting data rates of 1.8 GHz focused on Window 8 tablets and another hitting 2 GHz geared for Android smartphones. The two chips are expected to use different PowerVR processor cores.

The tablets are not likely to ship until Microsoft formally releases Win 8 in late October.

The next big turn of the crank for Atom comes in 2013, when Intel is expected to announce Bay Trail, the first mobile Atom SoC made in its 22-nm process with tri-gate transistors.

At IDF, Intel said six companies have announced smartphones using the current Medfield. It showed the phones using up to 2 Gbytes low power DDR2 memory hitting respectable scores on a variety of Java, Linpack and browser benchmarks, generally below the Apple iPhone 4S and above the Samsung Galaxy II.

Related stories:

• Intel describes 22-nm SoC process, not chips
• Teardown: Inside Apple's iPhone 5
• Intel tips Medfield specs, Lenovo, Motorola deals
• ARM's East unimpressed with Medfield, design wins
• Intel plans to crush ARM beyond 20 nm
  

TAG:Clover Trail Bay Trail Tablets Atom Smartphones Intel Acer Asustek HP Dell Lenovo Medfield

福州玉镯玉器业内人士谈购玉注意事项

福州玉镯玉器业内人士谈购玉注意事项

　　好玉配佳人,黄金有价,玉无价.现在越来越多的消费者都迷上了玉镯,有的人喜欢自己收藏,有的人喜欢购买来送人.对此本站采访了在福州玉器玉镯业内人士庄先生为我们解答一下在日常购买玉镯中要注意哪些事项.庄先生在福州有多年的玉器买卖经验,在业内有一定的知名度.

　　福州玉镯玉器业内知名人士 庄先生

　　福州去哪里购买玉镯比较好？

　　第一、我觉得福州买玉镯不适合去商场百货,商场百货由于各种经营费用以及品牌附加值,往往玉镯玉器标价与它实际价值高出很多.所以性价比就很低,也可能花了一万买到价值三千的物品.这一类的客户我碰到很多,一些新朋友拿来玉镯找我帮他看一下,有一个客户花了三万多买的玉镯,在我们店里同等品质的就差不多1万多.

　　第二、不能在网上购买,我接触过一个客户在淘宝网上看到精美的图片,忍不住就下手了,结果拿到货品的时候却发现不是自己想要的那个.后来选择退货却麻烦重重.网店物品都是拍照得来,有的店家为了让货物更加美观,进行了PS处理,处理后的物品看上去无比精美,可是拿到手的货品却会让你大失所望.

　　我在福州做玉镯及玉石有多年的市场经验,我个人觉得应该去那些专业的玉器交易市场购买,由于专业市场,价格一般随市场行情走,较少出现虚标价格的案例.我在福州特艺城附近就有店铺,如果有消费者需要找我,我会保证正品的前提前适当再给予优惠.

　　那我们又该如何选择玉镯呢？

　　1、选手镯时要认真观察玉镯是否有裂纹和破损

　　要对每个玉镯正面、反面、内侧、外侧作全面观察,尤其要注意缝住玉镯的红线遮挡处有无裂纹或破损,因为严重的裂纹是玉镯的致命伤.

　　2、要用敏锐的目光找出玉镯的瑕疵:

　　(包括玉镯上出现的黑色或黄色斑点,白色“石花”及原生的并非断裂的玉纹)；同时要注意玉镯的形状是否很园,条径的粗细是否均匀一致,抛光是否过关等.

　　3、要注意玉镯圈口的大小和条径的粗细是否符合需要.

　　这与购买者的胖瘦和年龄有关,如中老年人喜欢稍粗的条径,而年轻人则钟爱细条.

　　4、好的玉镯应是“有种有色”.

　　“种”指玉质的细嫩晶莹和透明度；“色”主要指翠绿色,若为美观的紫罗兰、花青或别致的“三色玉”或“四色玉”也不错.总的来说,应该牢牢记住下面四句口诀:先查裂纹防致命,瑕疵要少工要精,大小不符难成交,“有种有色”方精品.

　　5、选购玉镯时如何测试圈口大小？如何选配颜色？

　　在选购玉镯时,要测试你需要戴多大的圈口并不难,主要有两种情况:1、购玉镯者本人在场时,只要将玉镯能戴入4个长手指(即大拇指除外)至“虎口”处,感觉稍紧一些,然后将玉镯取下,测量一下内径,例如刚好是55毫米,那么,这个尺寸就是你适合的圈口了.如果你喜欢松一点,就再加大1-2毫米,便可轻易地戴上或取下了.有人喜欢戴小一点的玉镯,甚至戴上就不打算再取下了,那就可将上述尺寸再减少1-2毫米,并当场试戴.试戴时涂些洗洁精或肥皂水在手上,请别人帮忙,用力将玉镯戴进手腕即可.

　　6、如何区别玉镯上的玉纹和裂纹？

　　玉器商人有一句口头禅:“无纹不成玉”.这句话具有一定道理,如用10倍放大镜或肉眼仔细观察一个玉镯时,有些小小的玉纹(又叫玉筋)是不足为奇的,这些玉纹除有损玉器的美观外,对坚固性是影响甚微的.裂纹则是另一回事了,它是在玉石开采、运输、加工或保管过程中,由于爆炸、敲击、震动或跌撞而形成的次生裂隙,这些裂隙常具有明显的裂口,甚至用指甲即可刮碰到.裂纹的颜色往往是黑色或黄褐色的,有了这种裂纹的手镯虽然不会马上裂开,但却潜伏着容易断裂的危险,尤其影响美观,给人一种不完美和不痛快的感觉,影响销售.

　　最后说说福州玉镯行情,目前行情来看目前玉镯已经到了比较适合介入的价位,不管投资也好,收藏也好,或者送人都是比较好的购买时机.福州玉镯玉器业内人士谈购玉注意事项总结.

来源:新浪收藏


TAG:福州玉镯玉器业内人士谈购玉注意事项 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

HP, Hynix delay memristor debut

HP, Hynix delay memristor debut

LONDON – The memristor, a two-terminal, non-volatile memory technology in development by Hewlett-Packard since 2008, won't be ready for commercialization until the end of 2013, according to Stan Williams, and HP Senior Fellow and director of its Cognitive Systems Laboratory.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Williams previously said HP and Hynix, now SK Hynix, planned to launch a resistive memory as a replacement for flash memory in the summer of 2013. That estimate came during an International Electronics Forum in October 2011, when HP indicated that an early application could be solid state drives. The decision to delay was include a roundtable discussion posted recently on the Web site of the Kavli Foundation (Oxnard, Calif.).

The panel discussion, entitled "How atomic scale devices are transforming electronics," also included: Michelle Simmons, director of the Australian Center of Excellence for Quantum Computation and Communication Technology, University of New South Wales; and Paul Weiss, Kavli Professor at UCLA and Director of the California NanoSystems Institute.

"In terms of commercialization, we'll have something technologically viable by the end of next year," Williams said, adding that the timing of any launch would be influenced by market demand for such memories.

"Our partner, Hynix, is a major producer of flash memory, and memristors will cannibalize its existing business by replacing some flash memory with a different technology," Williams said. "So the way we time the introduction of memristors turns out to be important. There's a lot more money being spent on understanding and modeling the market than on any of the research."

Williams said memristor research was essentially complete, adding: "If you know what you're doing – and there's a lot of intellectual property involved – literally any foundry could make memristors tomorrow."

The terminology used for resistive memories has itself become contentious, perhaps for reasons related to patent language (see HP responds to memristor debate). Williams said "memristor" refers to a two-terminal resistive memory. However, other companies and research institutes also are working on two-terminal memories, often of multilayered metal-oxide composition, referring to the devices as RRAM or ReRAM, for resistive random access memory.


Related links and articles:

How atomic scale devices are transphorming electronics

The Kavli Foundation

HP responds to memristor debate

Memristor 'brouhaha' bubbles under

HP, Hynix plan to launch memristor in 2013

TAG:Hewlett Packard SK Hynix memristor ReRAM RRAM semiconductor memory

清汪洙雕白寿山石山子赏析

清汪洙雕白寿山石山子赏析

清汪洙雕白寿山石山子

　　所谓山子,本是一种文人墨客置于室内、用于观赏陈设的精美摆件,多是用整块玉石雕琢而成,在最大限度保留原始玉料整体外形的前提下,依石之自然施以巧工:或成崇山峻岭间以小桥流水、山林树木；或有亭台楼阁、花鸟人物,进而形成一种高低错落、布局得当的艺术效果.因其成形后极似一座微缩的山水景观,故名“山子”.山子体现的是中国传统工艺独特审美标准的一种极致,为世人青睐.

　　此山子质地温润,依石之自然纹理精琢而成.其正面有苍翠林木、屋舍掩映；背面则是山峦叠峭.此间最为精妙的是,作者以石材不同色彩的万般变化呈现出山川林木的无限景致,与人一种极富空间的审美遐想,令世人惊叹.若细细观之,其格局与章法,尤似一幅传统的中国山水画,山石的展现则更似绘画中的披麻皴.实可谓因形取势、繁中就简、自然生趣、妙然天开的艺术珍品.

　　山子背面刻“汪洙”二字隶书款识,汪洙是清代顶级的雕刻名家,史载其作品“皴法高古,厥工甚细”,“充分利用石色,因形取势,随意几刀,即可成山石崇峦,楼阁桥梁俨然”.汪洙传世精品无多,此器正是其罕见的传世佳作. 平日里人们所常见的寿山石雕,多是以其石质艳丽、做工俊秀而引人入胜,这样的作品比比皆是.独有汪洙的作品与众不同,其匠心独具、施艺得当,展现的是中国文人数千年来所极尽推崇的自然清秀之风,与人的感觉是即便处于闹市,却可从中觅得一丝置身于山野园林般的静逸与安详.以山以水而入题,脱离凡尘而化境,正是汪洙这般的艺术巨匠,创作出这般无以复加的神来之品,其艺术造诣足令后人实难逾越,故愈显弥珍.

　　(作者高智勇,系天津博物馆器物研究部研究人员)

来源:新浪收藏


TAG:清汪洙雕白寿山石山子赏析 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

玉石典当根据实力找定位

玉石典当根据实力找定位

　　前不久,关于玉雕行业的第四届上海“玉龙奖”作品评选活动在沪举行.据悉,本次评选由上海宝玉石行业协会主办、上海国盛典当有限公司参与协办.而这也是该典当行首次牵手协会参办该项活动.

　　上海国盛典当有限公司总经理张志豪在接受中国商报记者采访时坦言,国盛典当行此举意在借助“玉龙奖”,进行典当企业与宝玉石行业协会协作互动的一次有益尝试,为促进两个行业的共同发展起到积极作用.“我们特别希望能够通过这样的活动,在与知名企业、品牌企业接触中加深玉石行业对典当的认识,以及推广典当行的品牌与影响.”

　　据悉,玉石典当是国盛典当行的一项长期业务.尤其从去年开始,业务发展凸显规模.张志豪认为,在业务操作中通过与玉器收藏爱好者、投资者,以及上游玉雕企业、玉雕艺术大师的广泛联系,逐步积累形成了良好、长期互动关系,这都为国盛深入理解玉器融资需求、把控市场风险、设计推广玉器融资服务、实现玉器二次流通奠定了重要的基础.

　　他介绍道,在业务开展中,国盛典当不仅针对玉器艺术品收藏者、投资者面临的短期融资需求,而且面向玉器行业中绝大部分中小企业的阶段性融资需求,为这两类群体提供短期典当融资服务,日渐形成了自身的玉器艺术品典当业务特色.

　　众所周知,对于民品典当业务,特别是艺术品典当业务,业界一直因为受人才等多种因素的制约而难以“伸手”.对此,在张志豪看来,金融资本与产业资本如何结合,是值得典当行经验者认真思考的话题,也关系着典当行的生存方向.“我们之所以做玉石典当,一是因为我本身学的是与珠宝有关的专业,了解这个行当和圈子,二是因为我们的团队具备鉴定评估人才.其实,玉石当中有很多都是中小企业.”

　　玉石典当做些什么？张志豪向记者举例到,比如有些企业接了订单,需要资金购买原材料,那么可以将其原有的成品或者半成品进行质押融资.毕竟玉石牵涉的门类众多,除了和田玉、翡翠外,对于一些比较“小众”品种或者碰到拿不准的情况,国盛典当行会与当地宝玉石协会合作,请专业人士帮忙参与鉴定评估,通过这种方式来规避风险.“玉石本身器型较小,便于保存.而且从我的经验来看,这类企业的还款速度是比较快的,有的几天时间就能还上,也减少了典当行资金流动的风险.至于质押物,赌石这种我们是不考虑的,不过切开的、能够看清其内部材质的除外.”

　　关于客户的选择,张志豪说信誉度、权威度很重要,这不仅是对客户,对典当行也是如此,“是一种互相选择的过程.”

　　之所以将自身的经验与同行分享,他说“并非号召大家都非做这个业务不可.只是我们认为,今天的典当行,面对着五花八门的客户端.应该根据人员的专业特点,本身可以经营的范围,来挖掘潜在的客户群.无论哪家典当行,都不可能说对任何行当都了如指掌.衡量自身能力的前提下来找市场就显得尤为重要.这样也有利于弱化同行之间的竞争.(139

来源:新浪收藏


TAG:玉石典当根据实力找定位 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

玉石商人的玉石人生

玉石商人的玉石人生

　　乔·艾略特曾说过:宝石之中蕴藏着生命,它们的色彩能够说出语言难以表达的意思.奇珍异宝向来没有国界之分,但相比于象征着财富与奢侈的黄金钻石来讲,似乎更通透着“国人的灵性”.正像和田玉发烧友闫学军所言,品玉之人,必先有一颗“玉心”,温润善良,坦荡豁达,骁勇耿直,廉义高洁.

　　因钱少错失好玉最令爱玉人惋惜

　　曾在矿业公司工作的闫学军早期喜欢收集奇石,“在新疆我们称集市为"巴扎",而当时就有一个玉石巴扎,我和朋友会经常去那里转一转,现在一克卖几千元大小的玉当时只卖五元钱,当地人分堆放在地上,我和朋友就在那里挑挑拣拣,每次花上百元都能买回一堆玉石.买回来发现,这些玉和我收集的其他奇石就是不一样,很温润的感觉.”

　　讶异于和田玉“天然去雕饰”的美丽,闫学军和朋友在以后的日子里,养成了频繁出入“玉石巴扎”的习惯.渐渐地,随着手中的和田玉石越积越多,闫学军开始尝试“低买高卖”的玉石买卖生意.谁曾想,只是因最初抱有“原来玉石也可以卖这么多钱”的简单想法,却让闫学军的玉石生意越做越大,现在他已转向更深层次的玉石投资领域.“经验都是越积累越多,现在回头看以前买的东西,有的我现在肯定看不上了,不过话虽这么说,但那些玉的价格就现在的市值来看,也较以往有了几倍甚至几百倍的提高.”

　　闫学军把自己淘玉石的感觉,打趣地比喻为女人逛街淘衣服,“从早晨看玉坯看到下午,一点也不觉得累,身上有时"揣"着数十万元到处逛,几个小时就能花掉几十万元甚至上百万元,遇到特别喜欢的,钱又花光了,就打电话叫朋友送钱来.偶尔见到某块玉价位实在太高了,因钱不够而买不下来玉的这种错过的感觉能让我难受很久很久,过了很久还会回头去找这个玉.”言语中,闫学军流露出一种惋惜之情.

　　2000年,一个维吾尔人拿来一块蚕豆大小的和田玉,对方要价1500元,闫学军出价500元,被对方一口回绝.闫学军知道,新疆人卖东西有个很有趣的现象,如果他诚心想卖给你,当看到你有不买的苗头,一般会主动叫住你商量价格.果然,新疆人再次找到他,闫学军觉得那块玉的品相的确不错,但以为拒绝一下对方还会降一些价格,于是仍旧出价500元,对方考虑再三还是离开了,精明的闫学军本以为对方过不了多久还会再来,可那个维族人后来再也没有出现过.这让闫学军后悔不已.“一念之差啊,不过我一直相信,玉和人都是讲缘分的.属于你的不会跑掉,不属于你的也不会被你拥有.”

　　辨别玉石好坏 首看产地与质地

　　郑州卫视有一档鉴宝栏目“华豫之门”,其中一期主题为“玉友会”.当时栏目组特意邀请闫学军出席,当闫学军带着他那些令人艳羡的玉石宝贝出现在演播厅时,全场一片哗然.据说这之后主持人还专门联系他买了一块金镶玉雕件.现在,闫学军经常带着自己价值不菲的藏品参加北京、上海、天津、杭州等地的大型展会,也会经常出入北京、杭州大师级别的“天宫奖”珠宝评奖会,以及各类专业珠宝展,而每次闫学军的和田玉和奇石都会受到国内外玩家的一致好评.

　　谈到几年前卖掉的和田玉,闫学军现在想起来很后悔,“以前卖掉的现在根本收不回来,以前卖1000元的和田玉现在能卖10万元,如今就算给对方10万元,对方也不会卖的.玉的价格一直在涨,不像这两年市场上炒药材、炒姜、炒葱之类的作物,炒起来后大家跟风都去种植,然后价格回落,玉石不是你有多少资金就可以全买断的.即便经济危机来临,好的籽玉价格依旧没有下降,甚至还在看涨阶段.”

　　闫学军说,“这两年一些实力雄厚的玉商家或者投资玉石的人会直接坐飞机到新疆和田去购玉.有的时候,行家认为价值仅一两万元的和田玉,市场上却能卖到十几万元的价格,但即便这样也有人买,所以有些行家对和田玉会有种购买的恐慌心理,生怕自己一犹豫,被别人抢了先,于是也就并不太讲价了.”

　　对于很多爱好者“跟风”购买玉石的行为,闫学军认为,这样的从众心理很容易造成“打眼”.“不懂的人只认玉的"白",就很容易把产自俄罗斯的山料误认为籽料,实际上山料与籽料相比在升值和收藏方面的上升空间很有限.”而在谈到如何辨别和田玉的好坏真假时,闫学军表示,一块好玉有诸多因素需要考量,“要看产地以及玉质,即玉的质地,结构,白度等.玉的结构越细密,越白,油性越好,价格越高.在和田玉的几种料子中以和田喀什玉龙河产的籽料原石最好,最正宗.此外,有时在收集时要注意工艺,在玉质好的情况下,工艺非常重要,一块好玉如果没有好的工艺来雕琢,价值也会有所缩水.”

　　喜玉者皆为向善之人

　　现在,闫学军手里压料成本价保守估计就有上百万元,而这还只是进价的粗略估算,倘若售卖价格还会成倍翻.闫学军虽身价不菲,为人仍保持一贯的谦和实在,也正因如此,他结识了不少知己、挚友.“2000年,在一场和田玉展览会上,有一个人来我的展位前买和田玉,但因考虑价格问题,犹豫不决,于是他便把朋友叫来,帮着出谋划策,经过讨价还价,最终我们确定了一万元的成交价格,但就在付钱的时候,他突然发现自己钱没带够,我当时很爽快地答应他可以先把货拿走,过后再来付款.”

　　就这样,闫学军在连对方姓名、身份毫无所知的情况下,只留了一个自己的电话给对方,便把货给了那个人.这让一同参展的朋友十分焦躁,“你又不认识他,他不还钱来怎么办？你太轻信人了！”“相信我,我不会看错人的,他会还钱来的.”果不其然,第二天一大早对方就亲自来送钱,一旁的朋友看得目瞪口呆.经过这件事以后,闫学军和对方算是因玉结缘成了挚友.后来谈到此事时,对方的一句话让闫学军现在依然记忆深刻,“你在不知道我是谁的情况下就能够这么信任我,这是很少见的.若不是你有一份淳厚善良的心,又怎能做出这样的举动？”

　　古人有讲,宝玉通灵.在闫学军看来,喜欢玉的人都是向善之人,而随着时间的流逝,玉也会让人的内心变得温润、慈悲.“喜欢玉石的人都是有玉德的,而且无论从经济财力还是内心修养上来看,都会比一般人强一些.以前我是一个挺急躁的人,但自从对玉痴迷以后,我发现我的性情和修为大有提高,玉让我看透了很多,人也变得越发谦和豁达,正所谓玉如人生,人生如玉,做人的最高境界无非也就是拥有一颗玉石般的心吧！”闫学军谦和地说到.

来源:新浪收藏


TAG:玉石商人的玉石人生 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

Mobile speech recognition platforms to grow 68% through 2017 via cloud-based solutions, says ABI Research

Mobile speech recognition platforms to grow 68% through 2017 via cloud-based solutions, says ABI Research

As mobile speech recognition technologies continue to improve in their efficacy, the vendors of the speech technology platforms are making concerted efforts to enable the long tail of mobile application developers with speech recognition capabilities.

ABI Research notes the efforts of companies such as Nuance, AT&T, and iSpeech for exposing their APIs and developer programs as the foremost strategy in reaching the long tail of mobile applications.

"Reaching a varied group of developers working on different OS and hardware platforms makes cloud based solutions the optimum approach to enabling the masses," says mobile devices, content and applications senior analyst Michael Morgan. "It is the approach of using network based solutions that will drive the rapid increase in cloud based revenues."

Historically, mobile speech recognition was delivered to consumers through relationships between device OEMs and platform vendors. The other route to the consumer came through virtual assistant applications that were often developed by the platform vendors. Smaller application development efforts lacked the resources and expertise to bring the benefit of speech recognition to their products. This dynamic has kept speech recognition trapped in functionally specific applications.

"Leveraging the cloud as a delivery mechanism, platform vendors can enable nearly any application developer that wishes to make its user interface experience more efficient," adds mobile devices, content and applications senior practice director Jeff Orr. "ABI Research expects that consumers will first see the benefits of these efforts in mobile banking and retail applications."

Visit ABI Research at http://www.abiresearch.com.

This article originally appeared on EE Times Europe.

TAG:Mobile speech recognition market research

Xilinx takes Zynq platform into broadcast applications

Xilinx takes Zynq platform into broadcast applications

Xilinx has teamed up with OmniTek on a Linux-based high performance real time processing platform for broadcast equipment based around its Zynq programmable system on a chip.

The OmniTek Zynq-7000 SoC Broadcast Development Kit allows broadcast OEMs to now combine their own hardware and software IP with a high-performance, reprogrammable video processing platform for creating unique and differentiated broadcast equipment that can easily adapt to changing standards.

The Zynq-7000 family combines an ARM dual-core Cortex-A9 MPCore processing system with tightly coupled programmable logic on a single die so that developers can combine software algorithms for video quality and analysis on the ARM cores with hardware acceleration in the FPGA fabric, all within the same environment.

The key for broadcasters is the Zynq 7045 device that has started sampling that provides 10Gbit/s interfaces for SDI and high speed Ethernet links, says Rob Green, senior product marketing manager for broadcast at Xilinx. "This also allows audio algorithms such as Dolby to be added to the system using the ARM cores, making the synchronisation much simpler," he said.

"The unique architecture of the Zynq-7000 All Programmable SoC development environment in broadcast applications enables OEMs to achieve their goals of accelerating the time-to-market for their next-generation of products, while incorporating unique features and reducing the bill-of-materials (BOM) of their system," said Roger Fawcett, managing director of OmniTek.

"Complementing this, the performance and reprogrammability of Zynq-7000 devices enables us to address broadcasters' requirements to support performance-intensive real-time applications that need to be 'future proof' to adapt to changing industry standards and specifications."

Broadcast equipment OEMs can also reduce the BOM costs for their equipment using a single Zynq-7000 device rather than multiple chips to achieve their processing requirements. Additionally, Zynq-7000 All Programmable SoC-based products consume less power compared to multiple chip equivalents, thanks to the tight integration between the ARM processing system and 28nm programmable logic.

The Development Kit includes the new 2.0 release of the Xilinx Real-Time Video Engine (RTVE) developed jointly with OmniTek. RTVE 2.0 incorporates OmniTek's advanced video processing IP, along with Xilinx's Video & Image Processing Pack (VIPP). This supports supports up to eight channels of video for increased system performance in the same area of silicon – a fourfold increase over version 1.5, and also includes OmniTek's integrated deinterlacer / scaler with multi-port VDMA technology to optimize resources used and performance.

The board can be used in production for applications such as professional monitors and multiviewers which require incoming video to be de-interlaced and scaled in real-time to support monitor formats up to 4K resolution or in 3D with no loss of video quality, as well as studio cameras and professional-grade camcorders, which can be built at lower cost, space and power through the integration of video and audio processing hardware alongside operating system processors and microcontrollers. It is also aimed at production switchers, which must support multichannel video and audio processing with the best possible quality and enable smooth transitions between input feeds.

Availability of the platform is currently anticipated for first quarter of 2013. Both the development kit and the RTVE Version 2.0 will be offered through OmniTek.

http://www.omnitek.com.

This article originally appeared on EE Times Europe.

TAG:Zynq broadcast video processing Dolby audio

Taiwan embeds ReRAM in 28-nm process

Taiwan embeds ReRAM in 28-nm process

LONDON – The ability to embedding Resistive RAM (ReRAM) in a mainstream logic process could have major implications for the design of system-on-chip and foundry Taiwan Semiconductor Manufacturing Co. Ltd. is keeping tabs on the technology.

One of the more intriguing papers listed in the advance program for the 2012 International Electron Devices Meeting scheduled for Dec. 10 to 12 is from a research team from National Tsing-Hua University (Hsinchu, Taiwan) but with an additional affiliation to foundry chip maker TSMC(Hsinchu, Taiwan).

The paper (31.6) is entitled High-K metal gate contact RRAM (CRRAM) in pure 28-nm CMOS logic process. The extremely brief abstract states that a contact RRAM (CRRAM) cell has been realized in a HKMG 28-nm CMOS logic process without the use of any additional masking or process steps. This is done using a 35-nm by 35-nm contact hole.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

No more information is readily available regarding the paper but online searches reveals that the Tsing-Hua research team has previously worked with titanium-oxide based ReRAMs, typically in a TiN/TiON/SiO2 stacked arrangement sitting at the base of a tungsten contact plug attached to the drain of a conventional planar MOSFET.

The design is said to particularly compact compared with other types of ReRAM arrays and compatible with conventional logic manufacturing processes.

As recently as 2010 the team was working on a 1T-plus-1R ReRAM in 90-nm CMOS logic and claiming 1 million read-write cycle endurance.

The amount of memory included on system-chips is becoming increasingly large and responsible for much of the power consumption. The facility to hold data in dense non-volatile memory on a SoC – rather than in power consuming SRAM for even a few processor cycles – could drive power savings in leading-edge manufacturing.

The fact that the CRRAM can be implemented without any addition to the processing deck indicates a potentially easy introduction into chip manufacturing. However the fact that the IEDM paper is still essentially academic and written at the memory-cell level rather than at the array level indicates that more R&D is to be done. A demonstration or projection of considerably higher endurance would also be desirable.

Not only is the paper intriguing but it suggests a topic to watch out for at the International Solid States Circuits Conference in February 2012.


Related links and articles:

IEDM 2012

News articles:

Intel, rivals gird for IC manufacturing showdown

IBM, SK Hynix sign phase-change memory deal

UK researchers follow silicon-oxide ReRAM route

Silicon dioxide 'nanometal' offers alternative ReRAM

TAG:National Tsing Hua University TSMC Hsinchu CRRAM semiconductor memory

Berkeley researchers may track Twitter hackers

Berkeley researchers may track Twitter hackers

BERKELEY, Calif. – A handful of UC Berkeley researchers are part of a team that won a $10 million grant to try to head of hackers at the social networking pass. The National Science Foundation awarded the grant for a five-year project exploring how to anticipate and prevent attacks on social networking Web sites.

The work is just one example of dozens of projects at the International Computer Science Institute (ICSI) here. As many as 150 researchers work at ICSI on projects that range from coming up with new algorithms for voice recognition and video search to writing open source code for networking gear.

"More and more we are looking at the deep meaning of words, data and what’s happening in the network," said Roberto Pierraccini, ICSI’s director and a former voice recognition researcher. "Twenty years ago we were happy to ID things, today we are moving to a different level--identifying the meaning of things," Pierraccini said.

In the new security program, researchers will try to anticipate and block possible social networking attacks, some of which are already emerging. For example, some hackers have found a business accumulating and selling large numbers of Twitter followers.

In network security, researchers have evolved from seeking technical to economic solutions.


ICSI director Roberto Pierraccini oversees research identifying "the meaning of things."

TAG:International Computer Science Institute Hidden Markov Models Voice Recognition Social Networks Spam Security ICSI Research Berkeley Twitter Siri Apple

第五届神工奖玉雕作品展出

第五届神工奖玉雕作品展出

王俊懿《大鹏金翅鸟》 阿东 摄 李东《十八罗汉之一》 易少勇《醉玉寻花》 邢春《貂婵拜月》翟倚卫《风醉蔷薇》崔磊 《广开财路》郑继 《美丽人生》

　　海纳百川 神工溢彩 ——第五届神工奖玉雕作品选

　　主题为“神工玉韵,海纳百川”的2012中国海派玉雕艺术大展暨第五届玉石雕神工奖评选,将于9月21日至24日在上海展览中心隆重举行.届时,全国22个地区的400余名大师的近千件精品佳作参评参展.

　　中国玉雕的产地主要在上海、北京、苏州、扬州、徐州、新疆、蚌埠等地,其中,上海玉雕精雕细琢,独具匠心,被统称为“上海工”.专家认为“上海工”这个词汇过于狭窄,不能完全代表上海玉雕产业的全部内涵,而上海的玉雕已经形成了流派,包含了丰富的文化内涵和创意精神,优质的创意、工艺、技法一样不缺,还融入很多的文化内涵,应该改称“海派玉雕”.

　　今年“神工奖”的主题是“神工玉韵,海纳百川”,而“海纳百川”的理念使得“神工奖”有了更多的丰富性,“新玉石评介会”的开展就是一例.其实,玉雕并不仅仅指和田玉和翡翠,当两者声名鹊起、价格高昂的同时,全国各地已经发现了很多其他的玉种,像贵翠、黄龙玉、泰山玉和广西的鸡血碧玉,“新玉石评介会”让这些玉种接受市场的评论和爱好者的了解,也让大师有更多创作的载体. 敏敏 文

来源:新浪收藏


TAG:第五届神工奖玉雕作品展出 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

国外绿松石的等级划分

国外绿松石的等级划分

　　国外根据绿松石的颜色、透明度以及杂质分布的特征将绿松石分为四个等级,这些等级有时用一些地名来表示,这里的名称仅用与质量等级,并不指示地理产地.

　　(1)一级品 一级品包括以下三种不同结构的绿松石

　　A、最上等的绿松石呈强-中等的蓝色,颜色柔和而均匀

　　,没有暗色或浅蓝色斑点,没有铁线,强光泽和半透明使绿松石表面有玻璃感.绿松石孔隙度小,相对密度较大.这个等级很少见,常见于波斯出产的松石,故商业上成为波斯级；

　　B、颜色和质地匀为上等,但绿松石表面有一种诱人的蜘蛛网花纹,这时铁构成的象线一样细的线条网格.这种绿松石常成为波斯蜘蛛网绿松石；

　　C、颜色和质地匀为上等,但绿松石含有不同数量和形式的铁线,铁线的数量、颜色和分布使铁线绿松石的等级变化很大,而其吸引人的程度是划分等级的原则之一.这种类型成为波斯级铁线绿松石.

　　(2)二级品 二级品按其结构分为下列三种:

　　A、这个等级是浅蓝色,不如波斯级颜色鲜艳.透明度也比波斯级差,不透明或微透明,光泽不够强,结构呈斑状,带有略浅或略暗的区域,多数没有铁线；

　　B、颜色和质地同级,表面有细的蜘蛛网；

　　C、颜色和质地同级,含有不同数量和形式的铁线.

　　二级品商业上称为美洲级,美国松石和墨西哥松石等,这些名称都不具有产地意义.

　　(3)三级品　呈现蓝色或蓝绿色,通常是从一级品中挑选下来的,它比美国松石致密,但颜色不讨人喜欢,所以很少趋近二级品.贴线多的下等品销路不大.商业上称为埃及级.

　　(4)四级品 呈浅色或深色的黄绿色,铁线更多,是劣等品,价值极小,商业上称为阿富汗级 绿松石作为宝石是以颜色为其主要特征的,工艺美术上要求绿松石具有标准的天蓝色.其次是深蓝和蓝绿色,光泽强,半透明,质地细腻,致密块大,光洁无裂,无白脑、筋、糠心、炸性及其他缺陷.有黑色花纹者,要求花纹边界清晰无间隙.至于透明的小晶体,则是罕见的绿松石精品,重量达0.6克拉即可琢磨成刻面型宝石.

　　白脑:指在天蓝或蓝绿底色上存在的白色或月白色的星点或斑点.这时候由石英、方解石等矿物造成的.白脑的存在会大大降低绿松石的质量.筋:指具有细脉白脑的绿松石.糠心:指绿松石的外层为瓷松,而内心为灰褐色.灰褐色为绿松石的一大忌,故严重影响其质量.炸性:指绿松石在加工过程中易于自然裂开的性能.

来源:新浪收藏


TAG:国外绿松石的等级划分 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

绿松石矿石产地

绿松石矿石产地

　　我国是世界上著名的绿松石产地,也是绿松石的主要产出国之一.其中以湖北郧县、郧西、竹山一带的优质绿松石最为著名,畅销国内外.此外陕西白河、河南淅川、新疆哈密、青海乌兰、安徽马鞍山等地均有绿松石产出.江苏、云南等地也发现有绿松百.在国外也有一些著名的绿松石产地.如伊朗,产出最优质的瓷松和铁线松,被称为波斯绿松石.此外,埃及、美国、墨西哥、阿富汗、印度及原苏联等国均产出绿松石.

　　目前世界最大的一块绿松石宝石,产于湖北省十堰市郧县海拔1200多米的云盖山上.这块绿松石长82厘米,高、宽各29厘米,重达66公斤,呈蓝、绿色,结构完整,质地细腻.湖北郧阳地区被称为东方的绿宝石之乡,盛产的绿松石料质纯净,色泽艳丽,灿烂夺目,颜色多为天蓝、碧绿、灰蓝、粉绿,极为罕见.郧县云盖山绿松石矿出产的绿松石品位最佳,最为珍贵.

来源:新浪收藏


TAG:绿松石矿石产地 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

教你评鉴绿松石的质量

教你评鉴绿松石的质量

　　绿松石也称“松石”,是中外人士喜爱的古老玉石品种之一.绿松石的颜色存在一定差异,包括蓝色、蓝绿色、绿色等.绿松石中以天蓝色,质坚细密的瓷松最佳.质量最次的要属白色绿松石.

　　评价绿松石的质量主要从块度、颜色、致密程度等方面进行衡量.松石多为块状,一般小于五十克,市场上大块的松石非常少见.一般来说,绿松石块度越大越好.除了大小,形状的完好程度,杂质等也是重点考虑因素.

　　绿松石颜色是评鉴质量的重要因素,颜色纯正,色蓝的最佳,其次是绿色松石,灰、黄色为下品.松石的质量级别划分以质硬、色蓝、块大为特级料；剖面或断面有蜡状光泽者最佳.块大以及中小块色好的硬松石为一级料；色由蓝到亚绿,大块也是一级料,中小块是二级料.色不好,块小者为三级料.

来源:新浪收藏


TAG:教你评鉴绿松石的质量 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

Oracle drives Java into MCUs, embedded suite

Oracle drives Java into MCUs, embedded suite

SAN JOSE, Calif. – Angling for a bigger slice of the embedded software, Oracle released a run-time version of Java geared for microcontrollers and a suite of Java services aimed at a broad set of gateways and other embedded devices.

Oracle Java Micro Edition Embedded 3.2 is geared for systems with less than a Mbyte of memory and as little as 130 KBytes RAM and 350 KBytes ROM, especially those based on ARM Cortex-M and Cortex-A cores. The run-time is a variant of the Oracle Java Wireless Client, now also in release 3.2.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Oracle also released a software developer’s kit for the embedded code. The platform targets a wide range of industrial, consumer and energy systems, particularly in machine-to-machine (M2M) applications. Oracle also released a software developer’s kit for the embedded code.

“We believe the next wave of innovation in IT will come in M2M and more devices connected to the Internet,” said an Oracle spokesman.

Cinterion Wireless Modules (Munich, Germany) will demonstrate cellular modules using the code at Oracle’s JavaOne event next week. Separately, Oracle is talking to microcontroller vendors about deals to bundle the software, but does not expect any announcements at show.

In addition, Oracle has released its Java Embedded Suite 7.0, a package containing the GlassFish Web server, Jersey Web services framework and Java DB all based on Java Standard Edition 7. It is available in versions for Linux on ARM and x86 processors.

The suite aims to speed development of embedded systems such as network appliances, medical devices, home gateways and routers and large peripherals such as multi-function printers.

Next: Embedded stack
TAG:Embedded Systems Machine To Machine Java Oracle Embedded ARM Intel X86 M2M Software MCUs Cinterion

Jedec releases DDR4 spec supporting 3-D stacks

Jedec releases DDR4 spec supporting 3-D stacks

SAN JOSE, Calif. – The Jedec standards group posted the specification for Synchronous DDR4, the next generation for mainstream DRAMs used in everything from laptops to servers. The spec defines an interface delivering up to 3.2 GigaTransfers/second and is Jedec’s first to include features supporting 3-D stacking.

“It is likely that higher performance speed grades will be added in a future DDR4 update,” Jedec said in a press statement. The DDR4 interface covers signaling at rates that start 1.6 GT/s, a rate already being exceeded by some DDR3 parts.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

The DDR4 interface supports stacks of up to eight memory devices presenting only a single signal load. To enhance efficiency and bandwidth, DDR4 chips support two or four selectable bank groups, allowing simultaneous activation, read, write or refresh operations in each bank group. DDR4 speeds require AC timing parameters to be defined and measured in a new way.

“The new standard will enable next-generation systems to achieve greater performance, significantly increased packaging density and improved reliability with lower power consumption,” said Joe Macri, an AMD executive who chairs Jedec’s JC-42.3 group on DRAMs, in a statement.

“Improvements in performance and power consumption make DDR4 an attractive memory solution for the next generation of enterprise and consumer products, and we look forward to driving this technology into the marketplace,” said Robert Feurle, vice president for DRAM marketing at Micron.

Samsung and others also expressed support for the standard which DRAM makers have been implementing in modules for some time. Jedec will host a two-day workshop on the new spec in Santa Clara, Calif., on Oct. 30 and 31.

Related stories:

• Samsung trials DDR4 DRAM module
• Hynix announces DDR4 DRAM and module
• Micron announces DDR4 DRAM module
• DDR4 interposer supports logic analyzer for memory testing
• Samsung rolls out 16-GB DDR4 modules
• Micron sampling DDR4 DRAM module
  

TAG:3 D Stacks DDR4 DRAMs Memory Jedec Stacking Samsung Micron

Infineon eyes more cuts as sales fall

Infineon eyes more cuts as sales fall

LONDON - German chip maker Infineon Technologies said in its latest earnings guidance that it is defining "measures to improve profitability" during the fourth quarter of its current fiscal year, but the Munich-based company not specify what actions it will take beyond a previously announced hiring freeze. Options include spending and job cuts along with plant closings.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Infineon said it expects 4Q revenue ending on Sept. 30 to be slightly down compared to the fiscal Q3 revenue of 990 million euro (about $1,28 billion). The projection is at the bottom end of guidance released in July. Infineon said then it was freezing company headcount and evaluating cost-saving measures. The company said Tuesday (Sept. 25) it will define and implement measures to improve profitability beyond the first quarter of the 2013 fiscal year. For the first quarter of fiscal 2013, Infineon is forecasting a sequential revenue decline 10 percent.

Further details on cost cutting are expected when Infineon announces it latest financial results on Nov. 14.

Infineon CEO Peter Bauer will retire at the end of the company's fiscal year on Sept. 30. He will be replaced by Reinhard Ploss.


Related links and articles:

London Calling: Infineon's Bauer bows out

Infineon freezes headcount, mulls 'further measures'

Infineon leads power chip market ranking, says IMS

Ailing Bauer resigns as Infineon CEO

TAG:Infineon measures business sales forecast semiconductor

Sharp reportedly close to bailout deal

Sharp reportedly close to bailout deal

SAN FRANCISCO—Japan's troubled Sharp Corp. is expected to get approval as early as Thursday (Sept. 27) for loans worth as much as 210 billion yen (about $2.7 billion), according to a report by the Reuters news service.

The report, which cites an unnamed source at one of Sharp's main lenders, says the loan deal also includes a plan that commits Sharp to return to profit, including additional layoffs.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Sharp (Osaka, Japan) has been seeking financial support to implement a restructuring plan. The company had been trying since March to forge a partnership with Hon Hai Precision Industry Co. Ltd. (also known as Foxconn), the world's largest contract manufacturer and a supplier of manufacturing services to consumer electronics giant Apple. But a bail-out plan that included investment from Hon Hai in return for a transfer of LCD technology has become drawn out as Sharp's share price has collapsed.

Sharp has been hit hard by a slump in the sale of liquid crystal displays generally and LCD televisions in particular and is now expected to forecast a loss of about 300 billion yen (about $3.8 billion) for the year ending March 31, 2013. The company made a net loss of 138.4 billion yen (about $1.8 billion) in the first fiscal quarter, which ended June 30.

According to the Reuters report, Sharp has already submitted a restructuring plan that outlines how it can turn a profit in the six months beginning Oct. 1. The company is committed to repay short-term commercial paper loans worth as much as 360 billion yen (about $4.6 billion), according to the report.

Earlier this month, Reuters reported that Sharp mortgaged nearly all of its Japanese factories and offices, including one making liquid crystal displays for Apple products, to secure loans.

Last month, Sharp asked its labor union to agree a 7 percent cut in wages for the general work force and imposed a 10 percent cut in managers' salaries. In August, Sharp announced plans to cut 5,000 jobs before the end of the fiscal year in March 2013. According to the Reuters report, Sharp plans to raise the total of job cuts to about 11,000.

Related stories:

• Tablet craze a boon to contract manufacturers
• Fujitsu said to want out of chip business
• Sharp calls for tougher wage cuts
• Supply chain likely unchanged for iPhone 5
• Sharp mortgages factories to keep going
• Foxconn owner seeks 20 percent stake in Sharp
• Foxconn outfoxes Sharp’s sharpest

TAG:Sharp Bailout Loans Electornics Japan

中国8000年传统玉文化的三段历史

中国8000年传统玉文化的三段历史

　　纵观中国玉文化八千年的历史长河,可分为三段,即上游的神玉时期,中游的王玉时期和下游的民玉时期.

　　神玉时期是指在史前文化期的四千多年这段历史.在生产力极其低下的原始社会里,先民们认识自然,适应自然的能力极弱,对自然界各种现象无法解释并充满恐惧,认为宇宙万物皆有神灵存在.而集宗教、神权于一身的部落酋长们,又极需借助一种实物载体来作为与神灵沟通的媒介,从而展示自己的威严,实现统治.于是就找到了凝聚天地山川、日月精华的玉器.

　　此时的玉器是一种图腾崇拜.史前社会对动物的崇拜是一种普遍现象,如北方燕山以北,大凌河与西辽河流域红山文化的“玉猪龙”.这种猪首蛇身,首尾相接,弯成圆形的玉器,便是最具代表性的.红山先民把变形了的猪类动物作为神灵来供奉.一些专家认为“玉猪龙”是龙的雏形,中华民族对龙图腾的崇拜或许源于此.

　　此时的玉器还是祭祀天地的一种神器.如太湖流域良渚文化的玉琮(近似方形,中间有孔的柱形玉器)和玉璧(圆形且中间有孔的扁平玉器).觋巫在祭祀作法时,以苍璧礼天,执玉琮与天地沟通,传达神的旨意.玉器被赋予了神秘的宗教色彩,部落的力量因此被聚集,增强了适应自然的能力,推动了史前社会的发展.

　　王玉时期是指从夏王朝开始至唐末的近三千年这段历史.夏是我国原始社会解体后成立的第一个国.其沿袭了酋长制的一些统治手段,玉器的作用被沿用并赋予了新的意义.从此开始,玉器走下神坛,充当王权的工具.河南偃师二里头夏朝遗址出土的玉圭(长条形平首式片状玉器)等代表权力等级的玉器证明,夏开创王权玉器之先河.

　　周代规范了玉器等级森严的礼仪制度.“以玉作六瑞,以等拜国.王执镇圭,公执恒圭,侯执信圭,伯执躬圭,子执谷璧,男执蒲璧.”每逢朝觐,从天子到诸侯,各执不同玉器,以示地位身份.汉承周礼.唐代礼制略有改变,其以玉腰带来区分官职大小.玉腰带只有皇帝、亲王和三品以上官员才能系带,从七片到十三片不等,片数越多等级越高.最能代表王权的玉器莫过于从秦代开始,上篆“受命于天,既寿永昌”的传国玉玺.玉玺代表天命,没有天命是不能当皇帝的,此后二千多年,历代皇朝为争夺和寻找此玉玺,发生了许多血雨腥风和光怪陆离的传奇故事.

　　民玉时期是指宋代以后的历史.此时用玉出现“双轨制”.帝王宗法用玉依然故我,民间生活用玉闪亮登场.“旧时王谢堂前燕,飞入寻常百姓家”.玉器终于摆脱皇室贵族的独家垄断,大量融入民间.坊间出现了玉铺,推动了琢玉业的兴旺,玉器作为一种特殊商品进入流通市场,成为士庶百姓喜庆、佩戴、日用和收藏的重要器物.

　　民间玉器宋代以文玩著名.明代越加世俗,各种佩饰、缀饰、串饰等小件玉器成为主流.清代以玉为饰更是普遍,还出现大量与金、银、竹、木等材质结合的玉嵌件.明清两代小玉器洋洋洒洒流传至今,市场多见.

　　如今国泰民安,琢玉业百花齐放,推陈出新.玉器市场十分繁荣,民间敬玉、爱玉、佩玉之风益盛.世上无一件玩物和藏品能像玉器这般地雅俗相宜和“亲民”,赏玉、盘玉及侃玉等情景已成为国人茶余饭后、旅途闲聊等市井生活的一道独特风景线.

　　中国玉文化的历史长河啊,你奔流不息从远古走来,你充满魅力展现无尽风采！

来源:新浪收藏


TAG:中国8000年传统玉文化的三段历史 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

Process showdown set for IEDM conference

Process showdown set for IEDM conference

LONDON – Chip giant Intel and the research partnership clustered around IBM and STMicroelectronics are each set to report progress in their various approaches to leading-edge IC manufacturing at the International Electron Devices Meeting in San Francisco in December.

Research teams are set to present on the FinFET approach--called tri-gate by Intel--on fully-depleted silicon-on-insulator (FDSOI) and on bulk planar processes at around 20-nm and beyond.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Early in the proceedings (session 3.1), Intel is set to deliver a paper on its 22-nm FinFET technology for SoC applications. In the same session, a research team drawn from CEA-Leti, STMicroelectronics, IBM, Globalfoundries and Renesas will present a paper on ultra thin box and body (UTBB) FDSOI transistors for a multiple threshold voltage strategy at 20-nm and below.

Elsewhere in session 3.1, ST is set to report on switching energy efficiency in the UTTB process; IBM is set to present a 22-nm SOI process and Samsung researchers will report on the extensibility of its bulk 20-nm planar HKMG process.

Intel is already making processors using a 22-nm FinFET manufacturing process technology. But Intel now describes that process as a CPU process and has said it has not being optimized for lowest power consumption. Intel will provide engineering details of its 22-nm tri-gate SoC process and discuss its use of the approach to build a technology platform for SoC applications. That implies broad families of high-speed, low standby power and high voltage tolerant transistors, as well as RF and mixed-signal capabilities, according to the paper's abstract.

The high-speed logic transistors have sub-threshold leakages ranging from 100-nA per micron to 1-nA per micron, while the low-power versions feature a leakage of less than 50-pA per micron. Nonetheless, the process retains 1.8- and 3.3-volt transistors for analog circuits, and legacy circuits.

The Intel 22-nm SoC platform also includes carbon-doped oxide interconnect and three different types of SRAM bit cell to provide options between density, performance and low voltage operation, the abstract states.

In another session (session 18) on Dec. 11, a paper authored by a team from IBM, STMicroelectronics, Globalfoundries, Renesas, Soitec and CEA-Leti will report on another SOI process at 22-nm known as ETSOI for extremely thin silicon-on-insulator. This process has a silicon channel for n-type transistors and strained silicon-germanium channel for p-type transistors.

IEDM is set to take place Dec. 10 to 12 at the Hilton San Francisco Union Square.


Related links and articles:

• IEDM

News articles:

• Globalfoundries looks to leapfrog fab rivals
• Intel describes 22-nm SoC process, not chips
• Intel’s Haswell boosts battery life, graphics

TAG:Intel IBM STMicroelectronics Renesas Globalfoundries

Yoshida in China: Why its engineering grads love multinationals

Yoshida in China: Why its engineering grads love multinationals

NEW YORK -- A survey of engineering grads focusing on their "most attractive employers" underscores the importance of global branding for multinational tech companies like Google and Apple.

The global survey by Stockholm-based Universum also broke out responses by country, thereby providing a glimpse into the state of national industries, economies, consumer culture and the mindset of engineering students about to enter a global industry.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

Let’s dissect a list of the most attractive employers for 2012 as voted on by Chinese engineering students.

I was struck by the openness of Chinese students. While China’s state-owned companies such as China Mobile, State Grid Corporation of China (SGCC), and PetroChina have a solid footing in the top 20 list, Chinese students are also eager to work for multinationals like Apple, Google, General Electric, Microsoft and Volkswagen. One could conclude that blandishments of capitalism are casting their spell. Perhaps some also see value in working for a foreign company before returning to China.

Compare this with the survey results of German engineering students where largely ignored Google nor Apple as potential employers. In fact, not a single U.S. company appears on the German list.

The situation is similar for Japanese engineering students. While the survey found that Japanese students ranked Apple at No. 15, they overwhelmingly preferred to work for Japanese companies.

Does this reflect and insular attitude among German and Japanese students, or are they simply guided by the belief that domestic companies offer more opportunities for engineers?

Such a facile analysis is tempting, but I’d have to say no. The trend in Germany and Japan, I believe, reflects the state of industrial development in each country.

If your country has already produced such great companies and research institutes as Germany's Audi, BMW, Siemens along with the Franhofer or Max Planck institutes, naturally you'd want to stay close to home.

China, by contrast, still lacks homegrown, prestigious engineering institutions equivalent to those available in the United States or Germany. Hence, the desire to work overseas.
Next: The rise of Huawei, Baidu
TAG:Engineering Students China Apple Google

Erbium on silicon chip speeds up light

Erbium on silicon chip speeds up light

MANHASSET, N.Y. -- A researcher has demonstrated that the rare earth material erbium can be integrated with silicon for the first time to amplify an optical signal.

PhD candidate Laura Agazzi of the University of Twente (Enschede, Netherlands) demonstrated a working chip able to amplify light at speeds up to 170 Gbit/sec. The prototype chip has a signal gain of 7.2 db at 1,533 nm.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

The prototype is a starting point for generating a laser with an extremely narrow linewidth of 1.7 KHz: “You could use these chips for sensor purposes, for tracing extremely small particles, for example,” Agazzi reported.

The materials research is sponsored by the MESA+ Institute for Nanotechnology of the University of Twente.


TAG:Erbium Silicon Chip Light

中国玉文化三段史

中国玉文化三段史

　　徐梦梅

　　纵观中国玉文化八千年的历史长河,可分为三段,即上游的神玉时期,中游的王玉时期和下游的民玉时期.

　　神玉时期是指在史前文化期的四千多年这段历史.在生产力极其低下的原始社会里,先民们认识自然,适应自然的能力极弱,对自然界各种现象无法解释并充满恐惧,认为宇宙万物皆有神灵存在.而集宗教、神权于一身的部落酋长们,又极需借助一种实物载体来作为与神灵沟通的媒介,从而展示自己的威严,实现统治.于是就找到了凝聚天地山川、日月精华的玉器.

　　此时的玉器是一种图腾崇拜.史前社会对动物的崇拜是一种普遍现象,如北方燕山以北,大凌河与西辽河流域红山文化的“玉猪龙”.这种猪首蛇身,首尾相接,弯成圆形的玉器,便是最具代表性的.红山先民把变形了的猪类动物作为神灵来供奉.一些专家认为“玉猪龙”是龙的雏形,中华民族对龙图腾的崇拜或许源于此.

　　此时的玉器还是祭祀天地的一种神器.如太湖流域良渚文化的玉琮(近似方形,中间有孔的柱形玉器)和玉璧(圆形且中间有孔的扁平玉器).觋巫在祭祀作法时,以苍璧礼天,执玉琮与天地沟通,传达神的旨意.玉器被赋予了神秘的宗教色彩,部落的力量因此被聚集,增强了适应自然的能力,推动了史前社会的发展.

　　王玉时期是指从夏王朝开始至唐末的近三千年这段历史.夏是我国原始社会解体后成立的第一个国.其沿袭了酋长制的一些统治手段,玉器的作用被沿用并赋予了新的意义.从此开始,玉器走下神坛,充当王权的工具.河南偃师二里头夏朝遗址出土的玉圭(长条形平首式片状玉器)等代表权力等级的玉器证明,夏开创王权玉器之先河.

　　周代规范了玉器等级森严的礼仪制度.“以玉作六瑞,以等拜国.王执镇圭,公执恒圭,侯执信圭,伯执躬圭,子执谷璧,男执蒲璧.”每逢朝觐,从天子到诸侯,各执不同玉器,以示地位身份.汉承周礼.唐代礼制略有改变,其以玉腰带来区分官职大小.玉腰带只有皇帝、亲王和三品以上官员才能系带,从七片到十三片不等,片数越多等级越高.最能代表王权的玉器莫过于从秦代开始,上篆“受命于天,既寿永昌”的传国玉玺.玉玺代表天命,没有天命是不能当皇帝的,此后二千多年,历代皇朝为争夺和寻找此玉玺,发生了许多血雨腥风和光怪陆离的传奇故事.

　　民玉时期是指宋代以后的历史.此时用玉出现“双轨制”.帝王宗法用玉依然故我,民间生活用玉闪亮登场.“旧时王谢堂前燕,飞入寻常百姓家”.玉器终于摆脱皇室贵族的独家垄断,大量融入民间.坊间出现了玉铺,推动了琢玉业的兴旺,玉器作为一种特殊商品进入流通市场,成为士庶百姓喜庆、佩戴、日用和收藏的重要器物.

　　民间玉器宋代以文玩著名.明代越加世俗,各种佩饰、缀饰、串饰等小件玉器成为主流.清代以玉为饰更是普遍,还出现大量与金、银、竹、木等材质结合的玉嵌件.明清两代小玉器洋洋洒洒流传至今,市场多见.

　　如今国泰民安,琢玉业百花齐放,推陈出新.玉器市场十分繁荣,民间敬玉、爱玉、佩玉之风益盛.世上无一件玩物和藏品能像玉器这般地雅俗相宜和“亲民”,赏玉、盘玉及侃玉等情景已成为国人茶余饭后、旅途闲聊等市井生活的一道独特风景线.

　　中国玉文化的历史长河啊,你奔流不息从远古走来,你充满魅力展现无尽风采！

来源:新浪收藏


TAG:中国玉文化三段史 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

绿松石成投资收藏界新宠

绿松石成投资收藏界新宠

　　绿松石以其温婉神秘的色泽,受到越来越多人的青睐,如今随着开采量的增加,绿松石也日渐减少,所以绿松石的价值未来还有更高的提升空间.绿松石精巧独特,不仅适合于送人佩戴,也非常具有投资和收藏价值.

　　绿松石质地细腻柔和,色彩娇艳柔媚,在中国清代称之为天国宝石,视为吉祥幸福的圣物.此外绿松石是国内外公认的“十二月生辰石”,代表胜利与成功,有“成功之石”的美誉.我国的藏族同胞更是认为绿松石是神的化身,是权力和地位的象征,是最为流行的神圣装饰物,如今我们可以看到许多人都佩戴有精美的绿松石饰品,不仅有着很好的装饰点缀作用,而且还可以显示出佩戴者的独特品味.

　　绿色是万物生灵的颜色,喜欢绿色就是喜欢自然,精美的绿松石能给人一种简单,原始,质朴的美感.绿松石制品,有挂件、摆件、手链等等,琳琅满目,让人目不暇接.图中展示的是随形籽纯天然绿松石手链,琢磨精细,色泽鲜艳,亮丽醒目,让佩戴者有一种亲近自然的感觉.

　　绿松石上呈现出清晰的黑色脉络,被称为“铁线”,为绿松石平添了几分神秘之感.天然绿松石挂件“金蟾招财”,天然般的色泽不仅佩戴显示美感,绿色松石上有如墨线勾画的自然图案,美观而独具一格,雕刻精美绝伦,戴上它还有着聚财、旺财、避邪、保平安的用途.

　　正所谓爱美之心人皆有之,人们通过各式各样的饰品点缀着自己,烘托出个人的气质.如今的饰品种类繁多,有闪耀夺目的金银珠宝,有温润而泽的玉石等等,它们自始至终承载着人类对美的追求,演绎着美的传奇.大自然是最为神奇的造物主,他赋予了万物不同的材质特性,赋予了它们不同的色彩光泽,绿松石是世界上稀世珍宝之一,千百年来受到许多国家人们的宠爱,它有着美丽的色彩、多变的纹理、独特的质地,可谓是大自然中最美的绿色点缀之物.(来源:中国礼品网)

来源:新浪收藏


TAG:绿松石成投资收藏界新宠 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

扬州玉器名家晒宝贝

扬州玉器名家晒宝贝

　　本报讯(记者 安琪)今天,由扬州晚报联合扬州玉器网、扬州博物馆主办的“天禄琳琅2012当代扬州玉雕名家作品展”在扬州市双博馆雕刻厅隆重开展.

　　本次展览时间为9月22日至10月7日,共邀请近20名扬州玉雕大师参展,其中包括我国玉雕界具有重要地位的中国工艺美术大师顾永骏、薛春梅等“国字号”大师.参展的60余件作品集中体现了扬州玉雕 “兼有南方之秀、北方之雄”的艺术特色,品类包括“炉瓶”、“人物”、“花鸟”、“走兽”、“仿古”、“山子雕”6个大类.

　　此外,在本次展览上,《天禄琳琅 当代扬州玉雕艺术》一书也将首发,是首部系统阐述扬州玉器文化的书籍.

来源:新浪收藏


TAG:扬州玉器名家晒宝贝 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

中国海派玉雕艺术大展开幕

中国海派玉雕艺术大展开幕

9月21日,参观者在中国海派玉雕艺术大展上参观.新华网图片 陈沪涛 摄 9月21日,观众在2012中国海派玉雕艺术大展上参观拍照.新华网图片 赖鑫琳 摄.jpg

　　新华网上海9月21日电 当日,主题为“神工玉韵海纳百川”的2012中国海派玉雕艺术大展暨第五届神工奖在上海展览中心开幕,来自全国各地的400余名工艺师的近千件作品在展会上展出.

来源:新浪收藏


TAG:中国海派玉雕艺术大展开幕 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

A peek inside Apple's A6 processor

A peek inside Apple's A6 processor

SAN FRANCISCO—Apple Inc.'s A6—the processor powering its new iPhone 5—is likely fabricated by South Korea's Samsung Electronics Co. Ltd. and may employ ARM's "big-little" graphics processor core scheme, according to a preliminary teardown of the handset done by UBM TechInsights.

Samsung was widely considered the favorite to build the processor for Apple, just as the company has done for previous generations, the A4 and A5. But tensions in the courtroom and elsewhere between the two companies in recent times led to speculation that Taiwan Semiconductor Manufacturing Co. Ltd. (TSMC) might displace the incumbent this time around.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

But UBM TechInsights said early analysis of the die markings of the A6 reveal markings that are similar to the Samsung markings found in the A4 and A5 processors. (Click to view an analysis and photo slideshow of the teardown).


Apple A6 die marking (source: UBM TechInsights).

TAG:Samsung Iphone Apple UBM TechInsights Apple

Teardown points to Samsung as builder of iPhone 5 CPU

Teardown points to Samsung as builder of iPhone 5 CPU

SAN FRANCISCO—Apple Inc.'s A6—the processor powering its new iPhone 5—is likely fabricated by South Korea's Samsung Electronics Co. Ltd. like its predecessors, according to a preliminary teardown of the handset done by UBM TechInsights.

Samsung was widely considered the favorite to build the processor for Apple, just as the company has done for previous generations, the A4 and A5. But tensions in the courtroom and elsewhere between the two companies in recent times led to speculation that Taiwan Semiconductor Manufacturing Co. Ltd. (TSMC) might displace the incumbent this time around.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

But UBM TechInsights said early analysis of the die markings of the A6 reveal markings that are similar to the Samsung markings found in the A4 and A5 processors.


Apple A6 die marking (source: UBM TechInsights).

TAG:Samsung Iphone Apple UBM TechInsights Apple

Apple A6 processor has landed, sort of

Apple A6 processor has landed, sort of

Speculation around the design of the A6 processor at the core of the iPhone 5 has reached a fever pitch in the last few days. All that I have seen so far focuses on particular variants of the CPU and GPU. One might even say these cores are the whole discussion. It is widely believed that the A(x) processors are simply a CPU and GPU (now with multiple cores) tied together with a bit of transistor glue that makes everything work. If true, that's a shame.

Back in January 2010, before the iPad was introduced, I recounted a comment Steve Jobs made after Apple's 2008 acquisition of PA Semi acquisition in April 2008. Paraphrasing Jobs: "We want to further differentiate our products through IC design." I have always taken this to heart, making it the working premise of our analyses of the A4 and A5. We now extend this approach to the A5X and forthcoming A6.


A5X

The A5X variant emerged in March with the introduction of the iPad3. It was a relative huge die. One can quickly compare the A5 and A5X die photos and see the majority of the increase in die size is related to the addition of two GPU cores. I say majority because there is more to it than that.

The A5 GPUs consumed approximately 30 mm2, or 24 percent of the total die area. This number increases to 62 mm2 , or 40 percent of the total die area for the A5X. In both cases, the dual ARM cores consume approximately 18 mm2.

Does this account for all the increase in die size? The short answer is no.
Next: Inside A6
TAG:Apple iPhone 5 A6 A5

Apple A6 processor has landed, sort of

Apple A6 processor has landed, sort of

Speculation around the design of the A6 processor at the core of the iPhone 5 has reached a fever pitch in the last few days. All that I have seen so far focuses on particular variants of the CPU and GPU. One might even say these cores are the whole discussion. It is widely believed that the A(x) processors are simply a CPU and GPU (now with multiple cores) tied together with a bit of transistor glue that makes everything work. If true, that's a shame.

Back in January 2010, before the iPad was introduced, I recounted a comment Steve Jobs made after Apple's 2008 acquisition of PA Semi acquisition in April 2008. Paraphrasing Jobs: "We want to further differentiate our products through IC design." I have always taken this to heart, making it the working premise of our analyses of the A4 and A5. We now extend this approach to the A5X and forthcoming A6.


A5X

The A5X variant emerged in March with the introduction of the iPad3. It was a relative huge die. One can quickly compare the A5 and A5X die photos and see the majority of the increase in die size is related to the addition of two GPU cores. I say majority because there is more to it than that.

The A5 GPUs consumed approximately 30 mm2, or 24 percent of the total die area. This number increases to 62 mm2 , or 40 percent of the total die area for the A5X. In both cases, the dual ARM cores consume approximately 18 mm2.

Does this account for all the increase in die size? The short answer is no.
Next: Inside A6
TAG:Apple iPhone 5 A6 A5

收藏玉器要注意十大误区

收藏玉器要注意十大误区

　　收藏玉器要注意什么误区？玉器因清新雅致、不落俗套的外观和接福纳祥、情真意切的象征意义成为万众瞩目的焦点.俗话说,“乱世黄金盛世玉”,随着人们生活水平的提高和投资渠道的拓宽,玉器成为保值增值的主要收藏品之一,人们对玉器收藏可谓一掷千金.

　　盘点玉器收藏领域存在的十大误区,与广大网友分享.

　　误区一:盲目求白,越白越值钱玉可以美容,可以使人红颜永驻.

　　所以白玉很受爱玉之人的青睐.在选玉送给母亲时,也寄托了一种白玉无瑕的美好寓意,认为玉越白,越值钱.这种选择也是不科学的.这里说的白玉是指含透闪石95%以上的白色软玉,主要产于新疆和田.和田白玉洁白温润,气质高贵,是收藏的宠儿,但有的藏家盲目求白,只要看到白的玉石,就以为是新疆白玉而掏钱购买,其实白玉并非只是和田白玉,青海玉、俄罗斯玉、韩国玉都有白玉,这几种玉与和田白玉的价格相差很多,一些商家往往拿青海白玉或俄罗斯玉冒充和田白玉,收藏者一定要仔细鉴定,以免上当.

　　误区二:白色的玉石就是羊脂白玉羊脂白玉为软玉中之上品,极为珍贵,又称白玉之最.

　　惜玉之人更愿意选择羊脂白玉送给母亲,以表达自己独一无二的感恩之情.但羊脂白玉是新疆白玉中的极品,白、糯、润、温、细,且数量少,不少人看到很白的玉就误认为是羊脂白玉,其实白玉与羊脂白玉在矿物质成分和化学结构上是有区别的,用仪器测定可以清楚地看到区别,在玉器市场上人们无法时刻用精密仪器鉴定,便渐渐形成了一个约定俗成的标准,认为羊脂白玉应该是有较高油脂度、有柔和白度、润泽细腻的新疆白玉籽料.对于经验丰富的行家来说,区分白玉和羊脂白玉不是什么难题,但一般爱好者往往错把白度高的玉当做羊脂白玉,要是买到新疆白玉的话还好,可要是买到青海白玉、俄罗斯白玉的话,价格就比羊脂白玉低很多了.市场上有用水石冒充羊脂白玉的,但水石白得比较干涩、僵硬,而羊脂玉有油脂光泽,反射光线不强,购买时要注意区分.现在羊脂白玉玉矿已经枯竭,新品不多,以前出产的大都被藏家珍藏,能买到好的白玉就不错了.因此,在购买时要认清优劣,不要盲目追求羊脂白玉,避免花冤枉钱.

　　误区三:古玉与新玉盲目对比古玉在拍卖中价格屡创新高,致使一部分人只认古玉,觉得古玉比新玉更有升值空间.

　　所以,大家在选购玉饰品为礼物送给母亲时,会盲目选择古玉.其实这要综合来看,如果古玉没有很好的题材和历史内涵,其价值不一定比新玉高,一些现代玉雕大师的作品也屡创拍价新高.我们要理性收藏新玉和古玉,找准投资热点,必有升值空间.

　　误区四:捡漏心理,一夜暴富送母亲一份心意,玉饰品作为投资艺术品更成为了收藏的宠儿.

　　所以,在送母亲一份心意的同时,其礼物还能升值赚钱,这则是一个绝佳选择.不过,想买到一件好玉一夜暴富的想法是不现实的.收藏玉器要注意什么误区？商家在卖东西的时候往往花言巧语,误导买家以为自己能捡漏,捡到“馅饼”了.希望大家投资玉器保持良好的心态,不求暴富,但求长久,“只要买对,不怕买贵”,今年买的玉看似贵了,但是明年再回头看,发现还是值得.遇到鉴定问题多和专家交流,多学习,眼力高了,投资收益自然就会高了.

　　误区五:带皮的就是籽料,重皮不重玉玉品爱好者看到那种有皮的玉就误认为是籽料,这是错误的.

　　过分看重玉皮带来的是造假皮之歪风,用山料甚至其他不好的玉料在机器里滚成籽料外形,再烧上皮子,没有经验的买家很容易上当.大家在购买时要擦亮眼睛,避免把山料当籽料.有的藏家认为不带皮的玉不是好玉,至于需不需要留皮,什么位置留皮,这和雕刻工匠的艺术眼光有关系,作者在设计作品时,根据所雕刻的题材或皮色的位置,来选择是不是需要去掉皮子,皮色不好的话就要去掉,只保留好的玉质,如果皮色美,就可以保留皮子加以巧妙利用,俗称“巧雕”,俏色用得好会锦上添花,大大提高玉的价值.

　　误区六:追捧和田籽料,轻视山料时下很多人对和田籽料甚为追捧,反而轻视山料,认为山料不润、颜色干白,宁可要一个籽料的小坠也不要山料的大把件,这是有点极端的.

　　和田籽料的价格限制了很多人的购买力,山料的价格这几年迅速增长,相对少之又少的籽料来说,山料的数量还是较多的,大家不妨选择好的山料作为投资对象,升值潜力也是很大的,但要注意有不法商人用加工过的山料冒充籽料出售.

　　误区七:以硬度衡量玉质和田玉饰品,外形精美,质地细腻如脂.

　　和田玉又是身份地位的象征,不论到哪都会给人一种体面感,买来赠予妈妈戴上自然心情愉悦,长此以往身心健康.和田玉硬度高,韧性强,可以划破玻璃,有的人在卖玉器时,喜欢拿来划一下玻璃,看到能划动玻璃自身无损的话,就断定为玉,这是不科学的.玻璃的硬度通常为摩氏6度,而石英质玉石、玛瑙、红绿宝石,以及一些人造宝石硬度都在6度以上,就算同等硬度的材料也能互相划刻,显然不能作为判断标准.

　　误区八:以重计价,忽视其他很多爱玉之人会选择一些重的玉饰品送给自己的母亲或收藏.

　　不过玉的价格不能单纯以重量计算价格,还要看综合方面的因素,比如玉色、材质、工艺、沁色等方面.一件有历史故事或特殊意义的古玉,或工艺大师雕刻的新玉,其价格都远大于重量所体现的价值.

　　误区九:玉不琢不成器自古有言:“玉不琢不成器”.

　　很多爱玉之人喜欢买玉赠自己的母亲,以表达母亲对自己的培育教养之恩.玉经过精心雕琢,其收藏价值更是不容小窥.可是,有些藏家只认雕工,认为没有雕工玉就不美了,这就有点偏激了.大家都知道田黄石很昂贵,篆刻大师用田黄治印留边款时都尽量少刻字,惜石如金.收藏玉器要注意什么误区？玉器便是如此,面对有漂亮皮色的籽料,玉雕大师往往都不忍下手,顶多只是去掉杂色,或只打个孔用于佩戴,很多籽料都保持着原貌出现在各个拍卖会中,原石陈设也成为一种美.

　　误区十:急功近利,落入故事圈套购买玉品的热潮中,很多朋友到市场上看到心仪的玉,便急于想买下.

　　商家看准时机,添油加醋编造一番故事,让人误以为这块玉有来头,有典故,升值潜力大,不买就亏了,致使买家头脑一热就乖乖掏钱.虽然编故事的伎俩只能对付某些“菜鸟”买家,但这样的事还是屡见不鲜的.

来源:新浪收藏


TAG:收藏玉器要注意十大误区 翡翠 翡翠手镯 中国翡翠网 翡翠新闻

Could Apple A6 be a 'big-little' processor?

Could Apple A6 be a 'big-little' processor?

LONDON – There has been speculation as to whether the Apple A6 processor contains a dual-core Cortex-A15 licensed from ARM or a custom dual-core developed by Apple under an ARM architectural license (see Analyst says iPhone 5 processor uses custom CPU core and Analyst says iPhone 5 processor is dual-core Cortex-A15).

In these days of processor optimization packages (POPs) the lines are becoming blurred. Even if a company had taken an architectural license it might make sense to take a proven design as a starting point and then deviate from it for design purposes. There may also a lot more advantage to be achieved by innovating at a higher, or indeed lower, level of abstraction.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

For example, one way to innovate would be to take the Cortex-A15 core and apply the Fast14 technology Apple got hold of when it acquired Intrinsity Inc., confirmed in April 2010. Fast14 applies dynamic or domino logic constructs and novel signal encodings that can make logic and arithmetic units faster while consuming less power. This in turn might have implications for instruction pipelines and arithmetic logic units. Changes there might then require the use of an architectural license.

Similarly innovation in an area such as so-called "big-little" processing might make for a bigger power saving in operation than building a processor core from the ground up. Big-little was first discussed by ARM in 2011 at the announcement of the Cortex-A7 processor core. It is the method whereby a pairing of a high-performance processor core and a power-efficiency tuned processor core share processing duties in a cache-coherent combination with an overall power-saving advantage. The Cortex-A15 and Cortex-A7 were introduced as a big-little pairing that could use this technique with the forecast that chips including such pairings would appear in 2013.

But that does not mean that Apple might not have been working this ground in parallel under the architectural license.

Of course Apple may have created a completely novel processor core AND innovated with Fast14 and big-little power saving.

All of which could explain why the Apple A6 processor has, on separate occasions, been described as both a four-core and a dual-core processor and as a Cortex-15 implementation and as a custom implementation.


Related links and articles:

Analyst says iPhone 5 processor uses custom core

Samsung samples dual-core Cortex-A15 processor

TSMC's A6 processor to respin, says report
TAG:Apple A6 processor semiconductor IP ARM Cortex

Could Apple A6 be a 'big-little' processor?

Could Apple A6 be a 'big-little' processor?

LONDON – There has been speculation as to whether the Apple A6 processor contains a dual-core Cortex-A15 licensed from ARM or a custom dual-core developed by Apple under an ARM architectural license (see Analyst says iPhone 5 processor uses custom CPU core and Analyst says iPhone 5 processor is dual-core Cortex-A15).

In these days of processor optimization packages (POPs) the lines are becoming blurred. Even if a company had taken an architectural license it might make sense to take a proven design as a starting point and then deviate from it for design purposes. There may also a lot more advantage to be achieved by innovating at a higher, or indeed lower, level of abstraction.

[Get a 10% discount on ARM TechCon 2012 conference passes by using promo code EDIT. Click here to learn about the show and register.]

For example, one way to innovate would be to take the Cortex-A15 core and apply the Fast14 technology Apple got hold of when it acquired Intrinsity Inc., confirmed in April 2010. Fast14 applies dynamic or domino logic constructs and novel signal encodings that can make logic and arithmetic units faster while consuming less power. This in turn might have implications for instruction pipelines and arithmetic logic units. Changes there might then require the use of an architectural license.

Similarly innovation in an area such as so-called "big-little" processing might make for a bigger power saving in operation than building a processor core from the ground up. Big-little was first discussed by ARM in 2011 at the announcement of the Cortex-A7 processor core. It is the method whereby a pairing of a high-performance processor core and a power-efficiency tuned processor core share processing duties in a cache-coherent combination with an overall power-saving advantage. The Cortex-A15 and Cortex-A7 were introduced as a big-little pairing that could use this technique with the forecast that chips including such pairings would appear in 2013.

But that does not mean that Apple might not have been working this ground in parallel under the architectural license.

Of course Apple may have created a completely novel processor core AND innovated with Fast14 and big-little power saving.

All of which could explain why the Apple A6 processor has, on separate occasions, been described as both a four-core and a dual-core processor and as a Cortex-15 implementation and as a custom implementation.


Related links and articles:

Analyst says iPhone 5 processor uses custom core

Samsung samples dual-core Cortex-A15 processor

TSMC's A6 processor to respin, says report
TAG:Apple A6 processor semiconductor IP ARM Cortex