导波器

This topic returns in view of the cut type switch spreads the type switch "to return for the predecessor design spreads the type electric power switch utilization in the LED lamps and lanterns" is the research direction, to achieve take reduces the power loss to replace the tradition operational amplifier pulse wave width accent as the goal using IC UC3842 changes part, the actuation returns spreads the type electric power switch's switch of Power MOSFET, so as to controls instead spreads the type electric power switch breakover closure's time then control voltage output size, achieves the output voltage to the load LED lamps and lanterns adjusts the LED lamps and lanterns brightness the goal.

各位大大抱歉~！因为英文底子不好！希望大家帮忙翻译一下，希望不要用翻译软体翻的最好是自己翻！拜托了！本专题针对切换式转换器的返驰式转换器为前身设计「返驰式电力转换器运用在LED灯具」为研究方向，为达到以减少功率损失为目的利用IC UC3842代替传统运算放大器脉波宽度调变部分，驱动返驰式电力转换器的Power MOSFET之开关，藉以控制反驰式电力转换器导通截止的时间进而控制电压输出的大小，输出电压至负载LED灯具达成调节LED灯具亮度的目的。

Among them very multinomial and direct or indirect design reachs relevant industry to sensor, detailed situation is as follows: The computer reachs peripheral equipment: Hold pattern recognition of GPS receiver, graph and processing system; Microelectronics and photoelectron yuan parts of an apparatus: Cadmium of parts of an apparatus of coupling of CCD photoelectricity carry on one's shoulder, tellurium is mercuric , infra-red detector; CMOS image sensor; Communication equipment reachs a product: Smooth communication is metric with the instrument that monitor; Civil spacecraft reachs ground facilities: Spacecraft is lukewarm control a product; Automation machinery reachs device: Industrial robot and intelligent robot; Electromechanical key foundation: Intelligent air cylinder, intelligence changes model carapace breaker (voltage 380V, 660V, voltaic 1000A), prevent adopt device of dead apply the brake , the electron controls vehicle of the automatic gear-box, dynamoelectric steering gear that help strength, car to carry diagnostic system, gasoline engine electronic-controlled engine of device, derv is electronic-controlled car of device, alternative fuel changes device, car; Instrument appearance reachs a system: GPS car fixed position, monitoring calls the police attemper system, colliery installs all inspection to measure general management system, hydroelectric station to monitor control system, automatic cruise automatically to control a system (the car is auxiliary drive system), the electron collects fees administrative system (ceaseless car electron pays cost the system), two-phase; New-style medical apparatus and instruments: Medical sensor; Inorganic metalloid material: Component of the pottery and porcelain that suppress report, lukewarm characteristic thermal resistor ; New-style the sources of energy reachs equipment: The solar battery reachs package; The environment monitors an instrument: Monitor appearance, CO automatically to monitor appearance, automatic acid rain automatically sampler and determine appearance, soot, dust is automatic sampler and determine appearance, flue gas is automatic sampler and determine steam of end of appearance, car determines automatically appearance, portable poisonous and harmful gas determines quality of air of type of appearance, flow; The exploration of the sources of energy and mineral products resource develops device: MWD is followed get oil of logging instrument, numerical control monitor below well of deep well logging instrument, colliery reach calamity to forecast; The project measures and equipment of earthly physics observation: Project acceleration measures system, much general to strap weather radar (use be concerned with or double polarization technology), intelligence atmosphere sensor (contain lukewarm, press, irradiation level of wet, wind, precipitation, dew point, sun), personal computer control is automatic and perpendicular artesian well system , marine atmosphere; 1 2 of on one page issues one page

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The motivation for these studies is to better understand the Anderson localization of sound and vibrations in composite media, as well as their numerous engineering applications such as elastic/acoustic filters, vibrationless environments for high-precision mechanical systems or the design of new transducers.

而这些研究也具有实际的应用价值，例如，我们可以设计出一种新的弹性波的滤波器、波导器，以及给高精密的仪器设备提供一个无振动的环境等等。

A new method to fabricate TM pass polarizers by introducing zig zag shaped proton exchanged regions adjacent to a Ti diffusion waveguide on X cut, Y propagation lithium niobate is presented.

提出了用扩钛和质子交换相结合的方法在x-切，y-传的LiNbO3衬底上制成TM通集成光波导偏振器的新方案，即在扩钛波导两侧的适当位置引入锯齿形的质子交换区。

The shortcoming of ordinary multimode Y branch optical power splitter is that the branch characteristic strongly depends on the excited modal distribution. Different input conditions including different input modes and different input positions will excite different modes and different intensity distribution of these modes in highly multimode waveguides. The interference of these modes will contribute to distribute unstably, i.e.

多模Y分支器件的设计中存在一个共同的问题，即随着光入射条件的不同(包括入射光的模式不同和输入进波导端面位置不同等)，多模波导中所激励起的模的数目以及各个模之间的功率分配也各不相同，激励起的多个模式之间总是存在着不同程度上的相互干涉影响，从而最终影响功分器的分束均匀性。

Firstly, the thesis reviewed the study status on BST phase shifters and the achievements abroad, and decided to research the distributed phase shifters using optimized interdigitated capacitors.

论文首先分析了国内外BST铁电材料移相器的研究和发展现状，总结了多种不同类型BST移相器的优缺点，并在此基础上决定选择分布电容共面波导结构式移相器进行研究。

The multimode interference couplers are used to implement the conversion or combination of modes in integrated optical circuit.

多模波导干涉耦合器在集成光路中被用来实现波导模式的转换或合并。

And, the α parameters of frequency chirping of the cutoff intensity modulator are given at first. The cutoff conditions of metal-clad strip or rib waveguides are analyzed by modifying dual effective index method and simple effective index method, respectively.

在理论上，详细论述了截止型强度调制器的工作机理，结合耦合模理论，用近似方法对截止型强度调制器的调制特性进行理论模拟，模拟结果与实验结果的变化规律基本相符合；并首次给出截止型单波导强度调制器频率啁啾α因子的模拟结果。

Coupler,Y branch,directional coupler and Mach Zehnder interferometer were analyzed and simulated.

本论文对各种平面波导型耦合器：MMI、分支波导、定向耦合器和Mach-Zehnder进行了模拟和优化设计。

The former computation codes are supplemented. 3. A series of microwave filters and diplexers are designed by optimization and fabricated based on HFSS and the programs written by myself.

第五章运用HFSS仿真软件设计了梳状阶跃阻抗交叉耦合滤波器，采用自编程序设计了双频带通波导滤波器、拐弯波导双工器。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。