交换器

The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e.g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined.The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.

本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。

The heat exchanger has reduced volume, and is hermetical, low in cost and high in heat exchange efficiency.

这样减小了整个热交换器的体积，同时保证热交换器的密闭性，造价低，交换率高。

In order to facilitate quantitative analysis, a rational model of physics for a rise inverse sine structure of 1×2 S-branch power splitter in glass is proposed. In thermal ion exchange, the distribution of normalized refractive index of two-step ion-exchanged optical power splitter and the distribution of splitter refractive index of different exchange time have been gotten.

为了便于定量分析，采用了一种上升反正弦S型分支光波导系统的物理模型，得到了在热扩散条件下两步离子交换光功分器波导区的归一化折射率分布和在不同交换时间所形成的玻璃波导折射率分布。

How about letting ends meet, I get the Warp Scrambler and you get the Stabilizer Array?

见面交换出租怎么样？我得到经线倒频器，你得到安定器列阵？

In the preparation method, zirconium is mixed with benzenephosphonic acid according to the molar ratio of 1:2 to 1:4, and Alpha-zirconium phenyl phosphonate is produced by centrifugal washing after one to five days of crystallization under the temperature of 50 DEG C to 100 DEG C; deionized water is added in order to prepare Alpha-zirconium serosity, the solid content of which is 4 percent to 8 percent; the Alpha-zirconium serosity is granulated and dried by a rotary spray dryer, the feeding speed of the Alpha-zirconium serosity imported into an atomizer is controlled between 20ml/min and 80ml/min, and the temperature of a hot air inlet is controlled between 120 DEG C and 200 DEG C.

本发明涉及一种大比孔容微球α-苯膦酸锆及其制备方法，其颗粒尺寸为10～100μm，比孔容为0.908cc/g，比表面积为125.8m 2 /g；其制备方法是将锆和苯膦酸以摩尔比1∶2～1∶4混合，在50～100℃温度条件下晶化1～5天，离心洗涤得到α-苯膦酸锆；加入去离子水配制α-苯膦酸锆浆液，其固含量为4-8％；将α-苯膦酸锆浆液用旋转式喷雾干燥器进行造粒、干燥，控制α-苯膦酸锆浆液输入雾化器的进料速度为20～80ml/min，控制热风进风口温度为120～200℃；该方法具有操作简单、合成条件温和，对环境污染小等特点，该材料应用于催化、催化剂载体、吸附、离子交换等方面。

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 connection converting apparatus includes: a hook detector for detecting a hooked state of the telephone; a relay for connecting the telephone to either the Internet or the PSTN according to a commmand; a duplex circuit for suppressing voice leakage and side tone by converting and reconverting from a two-line signal of the telephone to a four-line signal for transmission and reception; a tone decoder for decoding a DTMF tone of the telephone; and a microprocessor for exchanging control data for the user's computer, controlling the relay to cause the telephone to be connected to the Internet when the hook detector detects an off-the-hook state of the telephone, and providing number data to the user's computer when the microprocessor receives number data from the tone decoder.

所述连接转换装置包括：用于检测所述电话的摘机状态的摘机检测器；用于根据命令将所述电话连接到互联网或PSTN的转接器；用于通过从所述电话的双路信号到用来传送和接收的四路信号之间的转换及复原来抑制声音泄漏和侧音的双工电路；用于对所述电话的DTMF音进行解码的音频解码器；以及微处理器，其用于交换来自所述用户的计算机的控制数据、控制所述转接器以使所述电话在所述摘机检测器检测到所述电话的摘机状态时连接到互联网、以及在所述微处理器接收到来自所述音频解码器的号码数据时向所述用户的计算机提供号码数据。

Mongolia procurement from China silk, cloth, rice, paper, brick tea, raw tobacco, brown sugar, porcelain, iron, Mongolian boots, saddle with,小百货and so on, with the pastoralists to exchange back to horses, cattle, sheep, hides, hair, herbal medicine and so on, with the Russian exchange back毛呢, blankets, velvet, silver and so on.

旅蒙商从内地采购绸缎、布匹、米面、纸张、砖茶、生烟、红糖、瓷器、铁器、蒙靴、鞍具、小百货等，与牧民交换回马、牛、羊、皮张、绒毛、药材等，与俄国人交换回毛呢、毛毯、天鹅绒、银器等。

Since 1993, manufacturers also developed a starch sugar "turnkey" projects (including the acid, two of the legal system Tai sugar, liquid glucose, high maltose, etc.), has a contract in Shandong, Henan, Jiangsu, Anhui, and so most of the country Of the starch sugar factory technical guidance, engineering, including plant design, production and installation of the equipment transfer of technology, process design, product quality in line with national standards, the maximum size of Nissan Design 200 tons, and its main production facilities are: bubble-meter tank , Refining machines, liquefied jet, liquefied reaction cans, glycosylated cans, decolorizing cans, vapor-liquid separator, frame filter (frame-style, Van), ion-exchange column, the evaporator (single Xiao, the effect of three-way), as well as various ancillary products pumps, reducer, a heat exchanger, and so on.

自 1993 年以来，厂家又开发了淀粉糖&交钥匙&工程，（包括酸法、双酶法制鈶糖、液体葡萄糖、高麦芽糖等），先后承揽了山东、河南、江苏、安徽等全国大部分省地的淀粉糖厂家的技术指导，工程包括厂房设计、设备的制作及安装技术转让、工艺设计等，产品质量符合国家标准，设计规模最高日产 200 吨，其主要生产设备有：泡米罐、磨浆机、液化喷射器，液化反应罐、糖化罐、脱色罐、汽液分离器、板框过滤机、离子交换柱、蒸发器等，以及各种配套产品泵类、减速机、换热器等。

In High-avail, made a concept of Redundancy Manager, and put forward some ethernet ring structures on the base of it. We can find these meet different levels of Avail requirement. In Real-time, it made great improvement on traditional ethernet. Adopted switch technology, high-speed ethernet, full-Duplex port switch, data prioritisation, and VLAN technology.

在高可靠性方面，提出了冗余管理器的概念，在它的基础上形成的几种以太网环网结构，可以满足不同层次的可靠性要求；在实时性方面，对传统以太网加以改进，采用了交换技术、高速以太网技术、全双工端口交换的方式、优先级标志技术、虚拟网技术等新技术。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。