电力市场仿真和培训系统的设计及实现

介绍了电力市场仿真和培训系统（PMSTS）的设计及实现。该系统基于 Net Framework框架结构，建立在统一的底层数据库之上，采用模块化结构体系、可视化图形界面，由教员台（客户/服务器结构）、学员台（浏览器/服务器结构）2部分组成，可以仿真不同电力网络在不同市场交易规则下的运行过程，达到培训、指导电力市场参与者的目标，并且对电力市场机制的设计和评估具有重要的理论参考价值。立足于电力市场运作的仿真和培训，该系统可以检验电力市场决策方案的合理性和有效性，能够帮助广大电力系统专业的学生及专业人员理解、熟悉电力交易机制，掌握市场规律。通过IEEE 30节点系统的算例，验证了该系统的有效性和实用性。     

火电机组运行优化系统的现状与展望

简单回顾了国内外在火电机组运行优化领域的研究历程，列举了目前国内外市场上针对火电机组的各种主流运行优化产品的功能特点和应用情况，分析了国外引进产品和国内自主研发产品在中国当前市场环境下各自的优势和劣势。介绍了当前运行优化系统在国内电站机组的应用现状，阐述了国内外运行优化系统在实际应用中存在的问题，并提出了相应的改进意见。对机组运行优化系统的未来发展进行了展望，指出机组运行优化系统将利用先进技术设备和信息平台，与电站管理紧密结合，在日益规范的市场中不断发展完善，为提高电站经济性发挥更大的作用。     

反向阳光间被动式太阳能空气采暖系统

介绍一种多层建筑中反向阳光间被动式太阳能空气采暖系统。它通过置于屋顶和地面的风管实现公寓中南部阳光间的太阳能得热向北部阳光间的自然传递。南部阳光间受热的空气上升，进入置于屋顶的风管，并通过这些风管流向北部阳光间；同时，南部阳光间置换出的空气被由北部阳光间的通过置于地面风管流向南部阳光间的较冷的空气所代替。由于系统还可用于东西阳光间之间，建筑物不受相对于太阳朝向的限制。     

Strange chaotic attractor crowding in boost converter model

A set of chaotic attractors is observed on a boost converter model. The union of their Poincare maps is strange. The attractors are densely packed such that they are sensitive to initial conditions. However every attractor in the set is stable with a finite (may be long) period     

Simulation and design methodology for a 50-Gb/s multiplexer/demultiplexer package

A 50 Gb/s package for SiGe BiCMOS 4:1 multiplexer and 1:4 demultiplexer targeting SONET OC-768 serial communication systems is introduced in this work. The package was designed to facilitate bit-error-rate tests and constructed with high-speed coaxial connectors, transmission lines on ceramic substrate, ribbon bonds for chip-to-package interconnects, and a metal composite housing. Numerical simulations were conducted to guide the package design, and both small signal measurements and operational tests were performed thereafter to verify the design and modeling concepts. To keep the model structure under the existing computing capability, the simulation was segmented into three sections - coaxial connector to transmission line, transmission line alone, and transmission line to ribbon bond, and then the results were assembled to predict the performance of the entire package. The package was operated up to 50 Gb/s with low degradation to input digital waveforms and free of error.     

CO_2激光对兔脑组织血脑屏障的影响

同等功率和照射时间条件下,在14只家兔大脑皮质运用伊文思蓝染料和超微结构观察方法进行血脑屏障改变的研究。结果表明:CO_2激光作用十分表浅,且激光作用后的水肿层血脑屏障改变是可逆的。     

Ca原子的Penning离化

用614.3nm染料激光照射以Ne为缓冲气体的Ca空心阴极灯,观察到了Ca原子的Pen-ning离化效应。对比在Li空心阴极灯中获得的光电流信号,解释了Ca原子的彭宁离化。     

圩区排涝模数计算方法研究

合理确定圩区排涝模数对于降低涝灾损失有重要意义。圩区内土地利用性质的不同,会导致产汇流机制和排涝标准的不同,但排涝模数的计算方法基本一致。本文根据圩区下垫面条件进行产汇流计算,入河流量扣除滞蓄量得到排涝模数,充分考虑到圩内河道的调蓄作用。以常熟市为例,对城镇圩区、农业圩区排涝模数进行计算,并分析了两种圩区不同的排涝要求对排涝模数计算方法的影响。     

自适应相位制中波同步广播及现场试验

在本试验中，采用智能同步广播激励器和ＣＣＴＶ传输的１ＭＨｚ标频，实现了中波同步广播同频保护率趋于０ｄＢ．并提出了自适应相位跟踪同步的概念。     

Enhancement of oxide break-up by implantation of fluorine inpoly-Si emitter contacted p+-n shallow junctionformation

In this study, it is demonstrated that the incorporation of fluorine can enhance poly-Si/Si interfacial oxide break-up in the poly-Si emitter contacted p⁺-n shallow junction formation. The annealing temperature for breaking up the poly-Si/Si interfacial oxide has been found to be as low as 900°C. As a result, the junction depth of the BF₂-implanted device is much larger than that of the boron-implanted device