发射

A novel method was proposed for average link loss from the view of loading and power in VSF-OFCDM downlink.

本文对VSF-OFCDM最大容量的推导及利用拉格朗日乘数的方法是一个较大的创新，同时得出一个非常重要的结论：只有当各个子载波发射功率相同且为基站最大发射功率的平均值时(即基站最大发射功率平均分配给每个子载波)，VSF-OFCDM才能获得最大的容量。

Mechanical properties and combusition characteristics were affected evidently by the solid grain configuration and its character. Mechanical propertiesof the material system could be improved by adopting RDX and proper granularpropellants granularity rank-match. It is favorable to obtain progressivity burning effect byaffiliating increasing burning surface propellant grains. Affiliating fast burning componentthese burning rate regulator in the bond system can quicken burning rate of propellants andimprove burning progressivity.

固体颗粒形态及其性质对力学性能和燃烧性能具有较大的影响，采用RDX与适当颗粒度的固体发射药的粒度级配有利于改善力学性能，加入增面燃烧的发射药颗粒，有利于获得渐增性的燃烧效果，在粘合剂体系中加入速燃组份等燃速调节剂，可加快发射药的燃气生成速率，改善燃烧的渐增性。

The system can obtain the real-time image of the monitored scene. By image detection of the moving object, the wireless image transmission device can give off alarm signals when moving objects enter the scene. Then alarm signals and real-time image are transmitted through wireless receival station into the monitoring room for inspection.

该系统可以获取被监控现场的实时图像，对图像中运动物体检测，当有运动物体进入监视现场时，无线图像发射装置给出报警信号，并将报警信号以及实时的图像画面通过无线图像发射装置发射出去，通过无线接收基站传入监控机房，监控人员可以在监视器上观察报警现场的情况。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

These results proved that the secondary electron emission yield of insulator measured with the device is credible, but the yield of MgO is smaller than the normal yield of MgO.

这表明该装置测量的绝缘体二次电子发射系数是可信的，但用磁控溅射法制备的MgO的二次电子发射系数较低，这可能是制备MgO时引入了过多的杂质在MgO二次电子发射体里面所引起的。

During operation in the space station, astronauts replace equipment and materials can be added or manned spacecraft from the spaceshuttle transport, supplies of equipment can also be the delivery of unmanned spacecraft.The former Soviet Union in 1971 launched the world's first space station ---"salute" on the 1st, then again in 1983 to launch a "salute" No. 2-7. The former Soviet Union in 1986 launched the space station more "Peace".

在太空站运行期间，宇航员的替换和物资设备的补充可以由载人飞船或航天飞机运送，物资设备也可由无人航天器运送。1971年前苏联发射了世界上第一个太空站———"礼炮"1号，此后到1983年又发射了"礼炮"2—7号。1986年前苏联又发射了更大的太空站"和平"号。

This paper intoduces the fire mechanism of the multiple tear bomb,and based on the classical interior ballistics theory,the mathematical model of interior ballistics which adopted low and high pressure chamber is established.

1引言警用枪发防暴弹属于低速榴弹，其发射机构通常采用常规高压发射，此类弹药结构简单、技术成熟，但膛压高、后坐力大、发射特征明显，具有一定局限性。

Telstar was launched in 1962 and it was followed rapidly by other satellites of increasing sophistication, notably Early Bird I, the first commercial communication satellite, which was launched in 1965 and is hovering some 22,300 miles above the Atlantic.

在一九六二年发射了"电星"通信卫星之后，紧接着又发射了几颗更先进的通讯卫星，其中最著名的是"晨鸟一号"。这第一颗商业通信卫星是一九六五年发射的，现在正悬停在大约22300英里高的大西洋上空。

Aring; of nanometre LaOx particle . On the basis of the results of the previous chapters , a new thermionic emission mechanism was put forward.

薄膜"发射新观点，解释金属薄膜型阴极的热电子发射机理，更深入地揭示热电子发射的内在规律。"

To analyze the thermal safety of Al/AgO battery in torpedo tube after launching failure, numerical simulation of the conjugate forced convection heat transfer was conducted in the condition of launch failure and battery activation by using the computational fluid dynamics software FLUENT.

为分析鱼雷发射失效后Al/AgO电池在发射管中的热安全性，基于计算流体力学方法，应用计算流体力学软件FLUENT，对鱼雷发射失效后Al/AgO一次电池激活情况下管内强制对流耦合传热进行了数值模拟。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。