技术基础
- 与 技术基础 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The author reviews the science and technology history home and abroad,and introduces the neoteric revolution in this field,focusing on the four scientific discoveries-the Big Bang,the quark model in material structure,the plate structure,and the DNA double helix structure-and the five technological invention-nuclear technology,space technology,information technology,biotechnology and nanometer technology-in the 20th century and their academic base of theory of relativity and quantum mechanics;and the writer...
回顾了中国和世界科学技术发展的基本历程;介绍了近代的科学革命和技术革命;重点论述了20世纪科学发现和技术发明的理论基础是相对论和量子力学,以及20世纪的四大科学发现——宇宙大爆炸理论、物质结构夸克模型、大地构造板块学说和DNA双螺旋结构和五大技术发明——核技术、空天技术、信息技术、生物技术和纳米技术;展望了21世纪科技发展前途;提供了油气开发与利用的信息。
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Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.
在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器,对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计,建立了器件的三维实体模型以及两维降阶模型,对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计,同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程,开展了一系列重要工艺步骤的单项工艺试验,对工艺流程与工艺参数进行了优化,针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析,并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合,建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。
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With the development of information technology,the research and application of remote failure diagnosis system are arising in the world.
1概述远程故障诊断的概念是在远程医疗概念的基础上发展起来的一种设备诊断技术,远程设备故障诊断技术是传统的故障诊断技术与网络技术、计算机技术和现代通信技术相结合的一种新型诊断技术,它是在工业现场的设备发生故障征兆或发生故障,现场的维护人员或故障诊断系统对其不能
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Differing the traditional technology from modern one, the former is further classified into the following three types in view of that who owned the technologies, i.e., monkish, public and royal.
技术可以分为现代技术和传统技术,在此基础上,把传统技术区分为三种类型,即从属于僧侣的技术、从属于民众的技术和从属于宫廷的技术。
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This thesis discussed three kinds of major technologies to reduce high PAR on the basis of the principle of OFDM system: pre-distortion technology techniques (clipping and filtering, peak windowing and companding technique), code techniques (Reed-Muller coding algorithm of Golay complementary sequence), and scrambling techniques (selected mapping, partial transmit sequence and selective scrambling), these techniques have some certain limitations.
本文在介绍OFDM理论的基础上,专题讨论了抑制高峰值平均功率比的三类主流技术:信号预畸变技术(限幅滤波、窗函数和压扩技术)、信号编码技术(Golay互补序列的Reed-Muller编译码算法)和信号扰码技术(选择性映射技术、部分传输序列技术和选择性扰码)。
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It includes the computer and software, telecommunications, broadcasting and television, micro-electronics and basic components and highlights mobile telecommunications technology, multimedia technology, high-definition televisual technology, digital audio-visual technology, PDP, network technology, character/speech/graph recognition and processing technologies.
包括计算机及其软件、通信、广播电视、微电子及基础元器件各产业,重点是移动通信(gsm、cdma、wcdma)技术、多媒体通信技术、高清晰度电视技术、数字式视听技术、等离子显示技术、网络技术、文字/语音/图形图象识别和处理技术。
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Technology, high-definition televisual technology, digital audio-visual technology, PDP, network technology, character/speech/graph recognition and processing technologies.
包括计算机及其软件、通信、广播电视、微电子及基础元器件各产业,重点是移动通信(gsm、cdma、wcdma)技术、多媒体通信技术、高清晰度电视技术、数字式视听技术、等离子显示技术、网络技术、文字/语音/图形图象识别和处理技术。
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It is concluded the factors of affecting information technology outsourcing decision-making into three aspects: technologic, economic, and strategic, and in-depth analyses outsourcing gaps which include technology gap, efficiency gap and strategic gap, and proposed a three-stage information technology outsourcing model, and identified technology gap, efficiency gap and strategic gap which are in the model, and in detail introduced using VENN diagram to identify technologic gap, and applied Technology Acceptance Model to perceive Information technology outsourcing.
通过对目前影响信息技术外包决策因素的相关研究进行综合分析,确定了影响信息技术外包决策的主要因素,将其归纳为技术、效益和策略三个方面,并对技术、效益和策略因素的缺口即外包缺口进行定义及分类,在此基础上,提出了一个三阶段的信息技术外包决策模型,并对该模型中的技术缺口、效益缺口和策略缺口识别方法进行了研究,其中重点探讨了基于VENN图解法的技术缺口识别方法。
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The study outcome: the skill elements of the traditional martial arts originated from living requirements according to boxing, plundering, defending, etc. During the skill evolving period, the separation between military skills and folk skills arose, the war requirements gave possibility for the development of the traditional martial arts, especially the development of martial arts'apparatus, the integration military skills and folk skills lay a foundation for the formation of different boxing schools of the traditional martial art skills.
研究结果认为:传统武术技术元素源于搏斗、掠夺、防卫等生存需要;在技术演进过程中随着大规模战争的出现而开始了军事技术和民间技术的分流,战争的需要为传统武术技术特别是武术器械的发展提供了可能,军事技术与民间技术的合流为传统武术技术形成不同的拳种流派奠定了基础;所有拳种流派的动作元素具有元素同源性,劲力是区分拳种流派的主要标志。
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Specialized introduction: This specialized raise has the electronic technology and the information system elementary knowledge, can be engaged in each kind of electronic installation and the information system research, the design, the manufacture, the application and the development higher project technology talented person Main curriculum: The signal and the system, the digital signal processing, the correspondence principle, the microcomputer principle and the connection technology, the monolithic integrated circuit principle and the application technology, the DSP technology and the application, the EDA technology, the construction of data, embedded Linux using the programming, the feeling measure technical, the electric circuit theory series curriculum, the computer technology series curriculum and so on individual hobby * software and hardware research and development computer correspondence literature ping pong photography The experience and the personal experience * 2006.6.29-7.8 compile the staff management system management system using the C language, its basic service activity includes: The staff information warehousing, the revision, the inquiry, the insertion, deletes the staff information and so on * 2006.7.10-7.20 monolithic integrated circuit curriculum design period completes the stopwatch the design, namely the initialization timer is 99:99, 0 starts using the monolithic integrated circuit timer fixed time, fixed time arrives when 0s to transmit the signal to cause the buzzer bell, and may realize suspends, the continuation and the replacement function * 2007.7.2- 7.8 practises in Luoyang Big dragon Peony Communication facility Limited company, does has liquid crystal display monitor telephone one, simultaneously visited has served under somebody's banner the correspondence company, and studied has simulated the telephone the design electric circuit, had understood its basic principle * 2007.7.4- 7.18 completed the DSP curriculum in the school to design, realizes the FIR numeral filter, namely transmitted 25 from DSPThe height level, after advocates AC01 D/A to transform the simulation square-wave, then passes to again from AC01 carries on A/D to transform, produces the data signal, after the DSP numeral filter, finally produces the sine wave * 2008.8.1-8.15 to practise in the Zhejiang Jiang hua abundant power tool limited company, studies the computer software and hardware maintenance.
专业介绍:本专业培养具备电子技术和信息系统的基础知识,能从事各类电子设备和信息系统的研究、设计、制造、应用和开发的高等工程技术人才主要课程:信号与系统、数字信号处理、通信原理、微机原理与接口技术、单片机原理与应用技术、DSP技术及应用、EDA技术、数据结构、嵌入式Linux应用编程、感测技术、电路理论系列课程、计算机技术系列课程等个人爱好*软硬件研发计算机通信文学乒乓球摄影实践经验及个人经历* 2006.6.29-7.8 利用C语言编写员工管理系统,其基本业务活动包括:员工信息入库,修改、查询、插入、删除员工信息等* 2006.7.10-7.20 单片机课程设计期间完成秒表的设计,即初始化定时器为99:99,利用单片机定时器0开始定时,定时到0s时发送信号使蜂鸣器响铃,并可实现暂停、继续和复位功能* 2007.7.2- 7.8 在洛阳巨龙牡丹通信设备有限公司实习,做有液晶显示屏电话机一部,同时参观了旗下通信公司,并学习了模拟电话的设计电路,懂得了其基本原理* 2007.7.4- 7.18 在校完成DSP课程设计,实现FIR数字滤波,即从DSP发送25个高低电平,经主AC01 D/A 转换成模拟方波,然后再传给从AC01进行A/D转换,生成数据信号,经DSP数字滤波,最后生成正弦波* 2008.8.1-8.15 在浙江华丰电动工具有限公司实习,学习电脑软硬件维护。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。