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Telecommunications networks have enjoyed rapid advancement for more than three decades since the 1980s, based on stunning successes in the electrical and electronic fields, and have grown up to being the solid foundation of the worldwide information infrastructure. In the meantime, progresses in telecommunications networks have in return made tremendous con 相似文献
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Zhang Xinsheng 《中国通信》2014,(1)
正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta- 相似文献
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《光机电信息》2005,(12)
Chiu Crystal Materials Co., Ltd. Add: Room1 - 18 - 6, No.3 Bldg., 410 Huanghe Road, Shahekou District, Dalian, P.R. China Post Code:116011 Tel:+86- 411- 82044090 / 13332232030 Fax:+86- 411- 88811760 http://www.chiu- crystal.com E- mail: patrick_chiu@sohu.com patrick_chiu@163.com Chiu Crystal Materials Co., Ltd is specialized in the field of single crystal, such as LaAlO3, SrTiO3, MgO, Al2O3, YSZ, SrLaAlO4, YAP, and etc. We have a good relationship with many famous crystal gro… 相似文献
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《光机电信息》2006,(5)
ZnO LED Fabricated on Sapphire Substrate Was First Realized by CIOMP The key project “the physical properties and device exploration of ZnO single crystal thin film” developed by Changchun Institute of Optics, Fine Mechanism and Physics (CIOMP) , and Xiamen University waspassedthe middle-stage review held bythe National Natural Science Foundation of China (CNSF) .Some of the essential problems on ZnO light emission diodes (LED) have been solved by the group led by the profes… 相似文献
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《光机电信息》2006,(5)
Laser Technology and Equipment Beijing JCZ Technology CO., LTD. Product:Laser Marking Software Model: Ezcad2.0 Features:Low cost, high quality; Intuitive, easy to learn and easy to use; Internationailzed interface will display any languages; Extended-axis motor control used for rotary axis, x-y tables, etc.; Control external equipment with built in I/0 objects import files, such as PLT,DXF,AI,DST,BMP,JPG,GIF,TGA,PNG,TIF,TIFF,etc; Add 1D and 2D barcodes like EAN, UPC, … 相似文献
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When a non-uniformly distributed light falls on the non-uniformly distributed semiconductor (eg. pn junction), pairs of electron-hole excited by photons will evolve into a distribution of transverse electric potential, besides forming an ordinary vertical migration. Assuming a one-dimensional model for the above condition, we can obtain a differential equation for the transverse electric potential. After operating Laplace reform and leading boundary condition to the above formula, we can resolve the output photo-current collected by the two end-electrodes. The result shows the function relation between the transverse photocurrent and incident light spot position x on the sensitive surface indicating a new operating principle for the photoelectron position-sensitive detector. 相似文献
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《光机电信息》2006,(6)
New Yellow DPSS Laser Produces 25 mW at 561 nmCarls bad, CA -Melles Griot introduces a new member of the 85 YCA - series of diode - pumped solid - state ( DPSS) lasers. The new entry has an output power of 25 mW at 561 nm - more yellow power than is available from air - cooled krypton/argon ion lasers. The additional power can be used to compensate for fiber-couplinglosses or optical throughput inefficiencies associated with scanning and imaging devices. The single - frequency output e… 相似文献
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《光机电信息》2006,(12)
nLight Named Fastest Growing Technology Company in Pacific Northwest For the second year in a row,nLight has been named the fastest growing technology company in the Pacific Northwest in Deloitte and Touche’s Rising Star Category of the 2006 Deloitte&Touche USA LLP’s Technology Fast 50 program for the Pacific Northwest.With revenue growth of over 1400%,nLight was the fastest growing company in the Rising Star Category based on revenue growth over three years (2003~2005).The Rising Star Award is a part of the Pacific Northwest Technology Fast 50 program,which ranks the 50 fastest growing technology,media,telecommunication and life sciences companies headquartered in Washington, Oregon or Idaho. 相似文献
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《光机电信息》2006,(6)
Fujifilm Announces Price Increases for Photosensitive Material ProductsFuji Photo Film Co., Ltd. (President and CEO: Shigetaka Komori, hereinafter Fujifilm) has recently announced that from June 2006 onward, it will implement worldwide price increases for its photosensitive material products. The rapid digitalization of photography has created harsh market conditions for the photo imaging business. To sustain its photo imaging business, Fujifilm is undertaking intensive structural refo… 相似文献
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《光机电信息》2006,(12)
Protective Window for CO2 Scan Lens In some applications such as leather cutting,jeans marking,IC marking where ventilation system is not strong enough to pull out smoke/ dust,laser lens can be damaged over the time due to these built-up heat absorption“source”.Although we provide lens- refurbishing service,it is still costly for repairing double elements scan lens due to the amount of precision assembly works. 相似文献
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《光机电信息》2006,(5)
Cobolt Signs New Distribution Agreement Cobolt has recently announced that it has signed a distribution agreement with Optoprim, Italy. Optoprim provides a broad portfolio of photonics components,serving its targeted markets and possess a high level of expertise in laser technology. The distribution agreement will facilitate the supply of cobolt products, increase its presence and, most importantly, improve the service provided to its customers, new and old, in Italy.(No.5)JDSU to Acqu… 相似文献
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《大气与环境光学学报》2007,(5)
Advisory Board Gong Zhiben(龚知本) JiangW已nhan(姜文汉) Li Xiaowen(李小刘Ren Zhenhai(任阵海)、从}1 Fusheng(魏复盛) Editor一in一Chief Liu认飞nqing(刘文清) Deputy Editors一in一Chief Rao Ruizhong(饶瑞中) Li Ziyao(李子尧) Editorial Board Dong Yanbing(董雁冰) Fu Yunfei(傅云飞) Gu Xingfa(硕行发) Huang Weigen(黄韦民) Anlsui Ins亡j亡u七e ofOP亡jcs and几ne八五〕曲anies,CAS,H泛〕f色1 230031,伪joa几s亡j亡u亡e ofOP亡ies and Elee亡ronles,CAS,段二gd,:910209,段jna Be万ing Norn王al Un… 相似文献
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宋卫平 《电视字幕·特技与动画》1999,(5)
非线性编辑系统中的软件视频极卡的管理 在一个实时的非线性编辑系统中,为了实现实时处理而且不与计算机争夺总线和CPU资源,板卡间的视音频管理就成了首先要解决的问题。工业界已制定了统一的数据管理方式如VESA高级桥接器、VESA媒体通道VMC、介质流、Movie—2总线等,都是视频界成熟的方案。其中Moive—2总线已得到 相似文献
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Ken Werner 《光电子技术》2009,29(3)
At Insight Media,we are in the midst of writing the Green Displays Report:The Business Threats and Opportunities of Green Displays.As we were writing the section on emerging technologies,an interesting question came up. 相似文献
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本文叙述一种计算多频率信号激励的非线性电路静态响应的有效算法。这种算法是以频域的松弛方法为基础。每步迭代的解是由非线性元件引起的互调信号中每一频率成份作用于时不变电路的计算而获得的。 相似文献