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  1. 四级英语真题

  2. partI Writing (30 minute)注意：此部分试题在答题卡1上。Directions:For this part ,you are allowed 30minute to write a short essay on the topic of students selecting their fectures.You should write at least 120 words following the outline when bellow:1.有些大学允许学生自由选择某

  3. 所属分类：C

    • 发布日期：2008-04-26
    • 文件大小：25600
    • 提供者：hezhifeng1988

  1. A Practical Introduction to Computer Vision with OpenCV_2014

  2. Perception is essential in order for any entity to interact in a meaningful way with its environ- ment. Humans draw on many senses (such as sight, sound, touch and smell) to perceive the world. Most machines can only receive input through simple inp

  3. 所属分类：C++

    • 发布日期：2014-09-22
    • 文件大小：12582912
    • 提供者：jiyeqian

  1. 2008年6月大学英语六级A卷真题

  2. 这是复习及备战六级的秘籍,很赞的资源哦2008年6月大学英语六级A卷真题 Part I Writing (30 minutes) Will E-books Replace Traditional Books? 1.随着信息技术的发展，电子图书越来越多； 2.有人认为电子图书将会取代传统图书，理由是… 3.我的看法。 Part Ⅱ Reading Comprehension(Skimming and Scanning)(15 minutes) What Will the World Be Lik

  3. 所属分类：C

    • 发布日期：2009-01-19
    • 文件大小：104448
    • 提供者：watermenu

  1. Hello Android.rar

  2. Hello Android (3rd Edition)，英文书籍，适用于android入门 ！ Android is an open source software toolkit for mobile phones that was created by Google and the Open Handset Alliance. It’s inside millions of cell phones and other mobile devices, making Android a maj

  3. 所属分类：其它

    • 发布日期：2019-07-09
    • 文件大小：2097152
    • 提供者：weixin_39840650

  1. Packt.Embedded.Systems.Architecture.1788832507.rar

  2. Embedded systems are self-contained devices with a dedicated purpose. We come across a variety of fields of applications for embedded systems in industries such as automotive, telecommunications, healthcare and consumer electronics, just to name a f

  3. 所属分类：其它

    • 发布日期：2019-07-19
    • 文件大小：1048576
    • 提供者：weixin_42870527

  1. mathematica画图指南（英文）.pdf

  2. 开源计算机代数系统，可用于做符号计算，代数推导和编程，供大家学习Contents Preface IX Acknowledgments XIX 1 The Design of Mathematica's Graphics Commands 1.1 Easy to Use 1.2 General purpose 1. 3 The Evolution of Mathematica's Graphics 3679 2 Data Typ 2.1 TwO-Dimensional Graphics Obje

  3. 所属分类：专业指导

    • 发布日期：2019-10-19
    • 文件大小：34603008
    • 提供者：yr2008cn

  1. 柔性生产线监控网络设计.pdf

  2. 柔性生产线监控网络设计pdf,柔性生产线监控网络设计Abstracts 10-06-143 Defects and Solutions for Diecasting of bctwccn rcducc work safcty accident and mcchanical safc quality Zinc Alloys standardization was analyzed. Promote enterprise to improve LIANG Huan-cao (Wah Fung Met

  3. 所属分类：其它

    • 发布日期：2019-10-13
    • 文件大小：150528
    • 提供者：weixin_38743506

  1. Banner Compact Sensors.pdf

  2. Banner Compact Sensorspdf,Banner Compact SensorsPHOTOELECTRICS WORLD-BEAMB QS18 Sensors ■18mm力 hreaded lens mount 15.0mm on some mode/s 150mm→、310mm ONL Detailed Dimensions ■ a variety of cable and 21.0mm connector options 5cmQ3 a Rugged sealed housi

  3. 所属分类：其它

    • 发布日期：2019-10-13
    • 文件大小：7340032
    • 提供者：weixin_38743968

  1. mp2100a_opm_e_15_0.pdf

  2. MP2100A-一体化比特误码率测试仪和眼图/脉冲示波器For Safety △ WARNING ALWAYS refer to the operation manual when working near locations at which the alert mark shown on the left is attached if the advice in the operation manual is not followed, there is a risk of personal

  3. 所属分类：网络安全

    • 发布日期：2019-09-03
    • 文件大小：8388608
    • 提供者：sunny92536

  1. Efficient intracavity optical parametric oscillator with diode side-pumped electro-optic Q-switched laser

  2. An efficient intracavity single-resonant optical parametric oscillator (OPO) at 1.571-micron eye-safe range using a non-critically phase-matched KTP crystal is reported. The OPO is excited by a diode side-pumped electro-optic Q-switched Nd:YAG laser

  3. 所属分类：其它

    • 发布日期：2021-02-27
    • 文件大小：203776
    • 提供者：weixin_38571449

  1. Threshold characteristic of intracavity optical parametric oscillator pumped by all-solid-state Q-switched laser

  2. We derive the threshold pump intensity for a singly resonant intracavity optical parametric oscillator (IOPO) based on a temporal coupled field model. Particular attention is paid to the dependence of the intracavity singly resonant OPO (SRO) thresho

  3. 所属分类：其它

    • 发布日期：2021-02-26
    • 文件大小：541696
    • 提供者：weixin_38569675

  1. Intracavity optical parametric oscillator at 1.57-micron wavelength pumped by passive Q-switched Nd:GdVO4 laser

  2. A high-repetition-rate eye-safe optical parametric oscillator (OPO), using a non-critically phase-matched KTP crystal intracavity pumped by a passively Q-switched Nd:GdVO4/Cr4+:YAG laser, is experimentally demonstrated. The conversion efficiency for

  3. 所属分类：其它

    • 发布日期：2021-02-13
    • 文件大小：400384
    • 提供者：weixin_38569166

  1. Eye-safe, single-frequency pulsed all-fiber laser for Doppler wind lidar

  2. A single-frequency pulsed erbium-doped fiber (EDF) laser with master-oscillator power-amplifier configuration at 1 533 nm is developed. A short-cavity, erbium-doped phosphate glass fiber laser is utilized as a seeder laser with a linewidth of 5 kHz a

  3. 所属分类：其它

    • 发布日期：2021-02-12
    • 文件大小：461824
    • 提供者：weixin_38686399

  1. High-efficiency 1598.5-nm third Stokes Raman laser based on barium nitrate crystal

  2. A high-efficiency eye-safe Raman laser was demonstrated by use of the third Stokes radiation in a Ba(NO3)2 crystal pumped by a 1064-nm Nd:YAG laser. The output wavelength of the Raman laser was 1598.5 nm with a full-width at half-maximum (FWHM) of 1.

  3. 所属分类：其它

    • 发布日期：2021-02-11
    • 文件大小：209920
    • 提供者：weixin_38698367

  1. An efficient intracavity-pumped KTP optical parametric oscillator at 1572 nm

  2. We demonstrate an efficient and eye-safe wavelength intracavity optical parametric oscillator (OPO), based on a KTP crystal inside a Q-switched Nd:YVO4 laser end pumped by a fiber-coupled diode laser. In the acousto-optic Q-switched operation with th

  3. 所属分类：其它

    • 发布日期：2021-02-11
    • 文件大小：157696
    • 提供者：weixin_38647039

  1. Eye-safe, high-energy, single-mode all-fiber laser with widely tunable repetition rate

  2. We present a novel high-energy, single-mode, all-fiber-based master-oscillator-power-amplifier (MOPA) laser system operating in the C-band with 3.3-ns pulses and a very widely tunable repetition rate, ranging from 30 kHz to 50 MHz. The laser with a m

  3. 所属分类：其它

    • 发布日期：2021-02-10
    • 文件大小：755712
    • 提供者：weixin_38596879

  1. Design and performance simulation of a molecular Doppler wind lidar

  2. A mobile molecular Doppler wind lidar at an eye-safe wavelength of 355 nm based on double-edge technique is being built in Hefei (China) for wind measurement from 10-to 40-km altitude. The structure of this lidar system is described. A triple Fabry-P

  3. 所属分类：其它

    • 发布日期：2021-02-10
    • 文件大小：3145728
    • 提供者：weixin_38611459

  1. High-peak-power, single-mode, nanosecond pulsed, all-fiber laser for high resolution 3D imaging LIDAR system

  2. This study presents an eye-safe, single-mode, nanosecond-pulsed, and all-fiber laser source with master-oscillator-power-amplifier configuration at 1 550 nm that is suitable for high-resolution three-dimensional (3D) imaging light detection and rangi

  3. 所属分类：其它

    • 发布日期：2021-02-06
    • 文件大小：1048576
    • 提供者：weixin_38691641

  1. 1514 nm eye-safe passively

  2. We examined a 1514 nm eye-safe passively

  3. 所属分类：其它

    • 发布日期：2021-02-03
    • 文件大小：776192
    • 提供者：weixin_38665162

  1. SafeEyes：使用这种简单而美丽但可扩展的断线提醒器保护眼睛免受眼疲劳-源码

  2. 安全的眼睛 使用这种简单而美丽但可扩展的断线提醒功能，保护眼睛免受眼疲劳。 访问官方网站： ： 了解更多详细信息。 Safe Eyes命令行参数 usage: safeeyes [-h] [-a | -d | -e | -q | -s | -t] [--debug] [--version] Safe Eyes protects your eyes from eye strain (asthenopia) by reminding you to take breaks while you'r

  3. 所属分类：其它

    • 发布日期：2021-02-03
    • 文件大小：405504
    • 提供者：weixin_42131367