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通過X射線照片來鑒別不同的人的模糊匹配算法的經典文章！《Fusion of Matching Algorithms for Human Identification Using Dental X-Ra

通過X射線照片來鑒別不同的人的模糊匹配算法的經典文章！《Fusion of Matching Algorithms for Human Identification Using Dental X-Ray Radiographs》

標簽： Identification Algorithms Matching Fusion

上傳時間： 2014-01-15

上傳用戶：sxdtlqqjl
RFID, the wireless technology that has helped millions of people around the world to protect their

RFID, the wireless technology that has helped millions of people around the world to protect their property and make their workplaces safer is now in danger of being viewed as a security risk. Ray Stanton examines the love-hate relationship between people and Radio Frequency Identification [RFID] tags and highlights the need for informed debate about the privacy issues the technology raises.

標簽： technology the millions wireless

上傳時間： 2017-03-19

上傳用戶：cmc_68289287
We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicit

We obtained the energy transport velocity distribution for a three dimensional ideal cloak explicitly. Near the operation frequency, the energy transport velocity has rather peculiar distribution. The velocity along a line joining the origin of the cloak is a constant, while the velocity approaches zero at the inner boundary of the cloak. A Ray pointing right into the origin of the cloak will experience abrupt changes of velocities when it impinges on the inner surface of the cloak. This peculiar distribution causes long time delays for beams passing through the ideal cloak within a geometric optics description.

標簽： distribution dimensional transport obtained

上傳時間： 2013-12-19

上傳用戶：zhliu007
Exploring C++ uses a series of self–directed lessons to divide C++ into bite–sized chunks that you c

Exploring C++ uses a series of self–directed lessons to divide C++ into bite–sized chunks that you can digest as rapidly as you can swallow them. The book assumes only a basic understanding of fundamental programming concepts (variables, functions, expressions, statements) and requires no prior knowledge of C or any other particular language. It reduces the usually considerable complexity of C++. The included lessons allow you to learn by doing, as a participant of an interactive education session. You’ll master each step in a one sitting before you proceed to the next. Author Ray Lischner has designed questions to promote learning new material. And by responding to questions throughout the text, youll be engaged every step of the way.

標簽： Exploring directed lessons series

上傳時間： 2014-11-15

上傳用戶：caiiicc
The Cognitive Early Warning Predictive System

I saw the light of the future when I first read Ray Kurzweil’s best-seller book The Singularity Is Near: When Humans Transcend Biology. One cubic inch of nanotube cir- cuitry, once fully developed, would be up to one hundred million times more powerful than the human brain.

標簽： Predictive Cognitive Warning System Early The

上傳時間： 2020-05-26

上傳用戶：shancjb
Thin Film Metal-Oxides

This chapter surveys the high temperature and oxygen partial pressure behavior of complex oxide heterostructures as determined by in situ synchrotron X-Ray methods. We consider both growth and post-growth behavior, emphasizing the observation of structural and interfacial defects relevant to the size-dependent properties seen in these systems.

標簽： Metal-Oxides Thin Film

上傳時間： 2020-06-07

上傳用戶：shancjb
IGBT失效分析技術

近年來，對器件的失效分析已經成為電力電子領域中一個研究熱點。本論文基于現代電力電子裝置中應用最廣的IGBT器件，利用靜態測試儀3716，SEM（Scanning Electrom Microscope，掃描電子顯微鏡）、EDX（Energy Dispersive X-Ray Spectroscopy、能量色散x射線光譜儀）、FIB（Focused lon beam，聚焦高子束）切割、TEM（Thermal Emmision Microscope，高精度熱成像分析儀）等多種分析手段對模塊應用當中失效的1GBT芯片進行電特性分析、芯片解剖并完成失效分析，并基于相應的失效模式提出了封裝改進方案。1，對于柵極失效的情況，本論文先經過電特性測試完成預分析，并利用THEMOS分析出柵極漏電流通路，找到最小點并進行失效原因分析，針對相應原因提出改進方案。2，針對開通與關斷瞬態過電流失效，采用研磨、劃片等手段進行芯片的解剖。并用SEM與EDX對芯片損傷程度進行評估分析，以文獻為參考進行失效原因分析，利用saber仿真進行失效原因驗證。3，針對通態過電流失效模式，采用解剖分析來評估損傷情況，探究失效原因，并采用電感鉗位電路進行實驗驗證。4，針對過電壓失效模式，采用芯片解剖方式來分析失效點以及失效情況，基于文獻歸納并總結出傳統失效原因，并通過大量實驗得出基于封裝的失效原因，最后采用saber仿真加以驗證。

標簽： igbt

上傳時間： 2022-06-21

上傳用戶：1208020161
博通BCM43438KUBG正基同款AP6212sdio工業級wifi模塊

1. General Description BL-M3362NS1 product is designed base on Broadcom BCM43362 chipset. It operates at 2.4GHz band and supports IEEE802.11b/g/n 1T1Rwith wireless data rate up to 72.2Mbps. It supports IEEE802.11isafety protocol, along with IEEE802.11e standard service quality. It supports standard interfaces SDIOV2.0(50 MHz,4-bit and1-bit) and generic SPI(up to 50 MHz), Integrated ARM Cortex?-M3 CPUwith on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.2. The range of applying Imaging platforms(printers, digital still cameras, digital picture frames)Consumer electronic devices(DTV, DVDplayers, Blu-Ray players. etc.)Gaming platforms Carinformation MiFi/Mobile Routes Smart PAD Set-TopBoxes

標簽： wifi

上傳時間： 2022-07-04

上傳用戶：
ZEMAX入門教學實例

1-1單透鏡這個例子是學習如何在ZEMAX里鍵入資料，包括設置系統孔徑（System Aperture）、透鏡單位（Lens Units）、以及波長范圍（Wavelength Range），并且進行優化。你也將使用到光線扇形圖（Ray Fan Plots）、彌散斑（Spot Diagrams）以及其它的分析工具來評估系統性能。這例子是一個焦距100mm、F/4的單透鏡鏡頭，材料為BK7，并且使用軸上（On-Axis）的可見光進行分析。首先在運行系統中開啟ZEMAX，默認的編輯視窗為透鏡資料編輯器（Lens Data Editor，LDE），在LDE可鍵入大多數的透鏡參數，這些設置的參數包括：·表面類型（Surf:Type）如標準球面、非球面、衍射光柵..等·曲率半徑（Radius of Curvature）·表面厚度（Thickness）：與下一個表面之間的距離·材料類型（Glass）如玻璃、空氣、塑膠.…等：與下一個表面之間的材料

標簽： zemax

上傳時間： 2022-07-27

上傳用戶：