可采用的

Based on the analysis, the implementation of FTDBMS is studied which includes the management of various kinds of engineering data types, access interface to flight test data and flight test identifier for multiple type of aircraft and repeated flights of a specific aircraft under test.

要适应多机型、多机种试飞数据处理要求，AFTSS的开发不能采用传统的"特定飞机专用软件"的研制模式，必须分析和抽象出各类飞机试飞数据处理软件系统共有特征，开发可重用或可重组的通用飞机试飞

Development of OA kneepad : The kneepad density-wave output can be controlled by 2Hz different frequencies to 300 Hz stimulation pulse component, the pulse width of 100 to 150 μ s between the positive and negative output symmetry to the stimulation pulse. The rechargeable mobile phone batteries ( 3.7V) were served as power supply and SCM as timer with automatic shutdown after 30 minutes.

OA护膝的研制：护膝输出的疏密波可控制由2～300Hz不同频率刺激脉冲组成，脉冲宽度在100～150μs 之间，输出正负向对称的刺激脉冲，采用可充电的手机电池(3.7V)供电，单片机定时，30min 自动关机。

Three magnetic amplifier s, such as adjustable-damper controlling, speed-limited protection in deceleration segment, and automatic braking largely used in alternated-elevator system in nation's coal and metallurgy exhibit quickness and firmness.

我国煤炭和冶金矿山大量使用的交流提升机，控制系统采用的可调闸控制、减速段限速保护和减速阶段电气制动三个磁放大器装置，存在快速性、稳定性、对环境参数的依赖性、敏感性均较差等固有弊端，采用现代电子器件和先进的控制技术取代原控制系统中的1CF、2CF、 3CF三个磁放大器及其落后的控制技术，并增加全新的电子速度给定环节，改善提升机性能

Of cable in made of the stainless steel panel,It is uncork, disassembly so that working on the local.

盖在电缆入口处的底板可采用非导磁的不锈钢板，是开缝的，可拆卸的，便于现场施工。

The bottom of panel that lie on the incoming of cable in made of the stainless steel panel,It is uncork, disassembly so that working on the local.

盖在电缆入口处的底板可采用非导磁的不锈钢板，是开缝的，可拆卸的，便于现场施工。

Secondly, most of typical scheme for MANET multicast reking are based inbalanceable key tree, the most import problem of multicast reking is providingforward security when member leaves and backward security when member join, then,how to improve efficient of multicast reking, decrease the cost of reking, is the coreproblem of balanceable key tree for MANET multicast reking.

对于大规模自组织网络，采用完全集中式或完全分布式的组****管理的方式容易形成系统单一失效点、产生网络分割、不同步等问题，实际应用中宜采用结合集中式和分布式优点的分散式的组****管理框架，子组中心管理和用户子组管理是框架的两个管理层次，对子组中心管理关注的是组****分发的安全性和效率，如何实现分布式身份可验证的组****分发是自组织网络组****管理的关键问题。

Such kind of implemetation can perform irrevertable or reverable speed control. the part of pwm is built on the platform of arm embedded system. it can generate two adjustable impulses which can complement each other through the control of the timers in s3c2410x chip by c programming.

系统主电路采用大功率gtr为开关器件，h桥双极式电路为功率放大电路的结构，即可完成不可逆调速同时也可完可逆调速。pwm调制部分是在arm嵌入式开发平台之上，运用c语言编程控制s3c2410x芯片的定时器来产生两路互补的宽度可调的矩形波。

Through the comparative analysis of the earth pressure calculated by the different calculation methods, it is known that when the earth pressure behind the abutment of the integral abutment bridge under the action of rising temperatures is calculated, it is not proper to use the m method to calculate the resistance coefficients of the abutment back wall and column earth while the resistance coefficient of the abutment back wall earth can be calculated by the Broms method. It is proper that the resistance coefficients of the earth of the abutment and pier piles should be considered by the p-y curve.

通过对不同方法计算的台后土压力的对比分析，得知：在计算升温引起的整体式桥台桥梁台后土压力时，桥台背墙及台柱土的水平抗力系数计算采用m法是不适合的；桥台背墙后填土的水平抗力系数可采用Broms法计算；土对台桩及墩桩侧的水平抗力系数按p-y曲线来考虑是适合的。

Based on Wavelet Packet Analysis and Smoothed Pseudo Wigner-Ville Distribution, the experiment data is time-frequency analyzed. The experimental results indicate that the amplitude of the laser-induced acoustic waves increases with the laser energy; the frequency coverage is from 0 to 150 KHz, and in the meantime there is a peak located at about 25 KHz. In addition, the spectrum and the peak of frequency are basically stable in spite of the change of laser energy and target texture.

从基本的空泡动力学理论出发，推导了空泡各特征参量之间的关系，进而对空泡动力学模型进行了修正；采用有限差分法对空泡脉动进行数值模拟，得到了空泡脉动特性随液体粘性、空泡含气量、表面张力以及可压缩性的变化规律；实验上采用光偏转测试装置探测了激光空泡脉动以及空泡溃灭的细节过程，进而分析了液体粘性和作用激光能量对空泡脉动周期、泡半径及泡能等特征参数的影响。

Apparently, Twisting Machine with that control system has much limitation. For example, some kinds of fancy yarns areproduced (all kinds of fancy yarns may be produced theoretically) and those kinds must have been saved in the system, to new kinds of fancy yarns, if still uses above-mentioned technique, it must have low efficiency. Therefore, this control system has no advantage of new fancy yarn.

显然，采用这种控制系统的花式捻线机，其可生产的花式纱线品种有限(虽然在理论上它可以生产各种花式纱线)，且该品种必须是系统中已保存有的，对于新的花式纱线品种，若仍采用这种设定、调试的办法，效率低下，不利于开发新的花式纱线品种。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。