波型转换

The Control System for Sealed-off and all-metal RF-excited CO_2 Lasers;2. An experimental study of 100W radio excited diffusively cooled all-metal rectangle waveguide CO_2 laser was carried out.

对新型百瓦级射频激励扩散型冷却全金属矩形波导CO2激光器进行了实验研究，实验中采用了CASE-I平行平面腔，试验结果表明，在采用10%透过率的输出镜时，激光输出最大功率达到146 W，电光转换效率达到17。

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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Based on wave analysis method, the characteristics of vibration wave propagation in typical hull structure were analyzed in consideration of wave type conversion and impedance variation in non-homogeneous structure, and the formula of sound transmission loss during incidence of plane bending wave was deduced.

以波动理论为基础，根据不均质结构中波型转换、阻抗特性，系统地分析了典型船舶结构中振动波的传递特性，推导并给出了平面弯曲波入射时的隔声量公式。

The more general form of Snell's law must be used for the wave generated by mode conversion upon reflection.

它是斯奈尔定律一种特殊情况。斯奈尔定律更一般的形式满足由反射波波型转换产生的转换波。

It is necessary to find the effects of spherical geometry on surface wave; Based on normal modal summation, the synthetic seismograms corresponding to the fundamental and few higher modes are calculated; Based on surface waveform scattering theory, the scattering surface wave are calculated for three dimensional laterally varying medium.

基于球地球模型计算面波波形，考虑到地球的圆球率，比平地球模型更接近实际；根据简正振型叠加原理计算出基阶和高阶直达面波；用面波散射理论计算出三维非均匀弹性地球模型的散射面波，包含振型转换，与实际更吻合。

It is pointed out that the Pacific / North American, the Eurasian , and the North America / Western Europe Patterns comprise the zonally elongated "Seesaw" and wave like structures, while the Asia / North American pattern is dominated by the waveli'ke structure.

结果指出：太平洋/北美型、欧亚型和北美/西欧型由"Seesaw"和波列结构组成，而亚洲/北美型主要呈波列结构，其中"Seesaw"结构及其与西风急流的配置关系、扰动在急流出口区通过正压能量转换从基本气流中获取能量等特征对于夏季北半球遥相关的形成和维持起重要作用。

The StressEraser cues you to not only slow your breathing but, just as importantly, to synchronize your inhales and exhales with the natural cycle of your heart rate.

这项最先进的医疗技术产品具有便携性，是无毒和非无伤害性的。它使用一个手指传感器，将心跳转换成波形的脉冲。这个波型将引导您呼吸与您的心跳循环同步。

In comparison with the drawbacks related to the Fourier Transform and Smoothed Instantaneous Wave Energy History(SIWEH, the Wavelet Transform will be show to be much better suited for analyzing wave shoaling In which signal is believed to be non-stationary and wide band.

在使用小波转换作为分析波浪工具之前，我们选择 Morlet wavelet、Paul wavelet与Gaussian三种型态之小波函数进行讨论，最终考虑视窗面积之大小、复数型态之小波函数及频率视窗的集中度，而以 Morlet wavelet较适合分析波浪。

In order to acquire the largest extinction ratio of the converted signal in the cross gain modulation wavelength conversion, the signal wavelength λ pk,s should be longer than the small signal gain peak wavelength of the semiconductor optical amplifier.

增益调制型波长转换中，为得到转换后信号最大的消光比，信号光波长应该比半导体光放大器的小信号增益峰值波长长。

Comparing comprehensive ly the present various current converting circuits, it is proposed an design structure of direct-driven wind power generation current converting systems in megawatt level.

摘 要：在综合比较当前适合直驱型风力发电机组的各种变流电路的基础上[1~ 2]，提出了一种兆瓦级直驱型风力发电变流系统的设计结构，即采用不控整流+升压斩波+SPWM逆变的变流器将电机发出的电能转换为可接入电网的恒频恒压的交流电。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。