基于 AUTOCAD 的二维及三维参数化设计

讨论了参数化设计在机械设计中的重要性．在ＡＵＴＯＣＡＤ中,利用ＡＵＴＯＬＩＳＰ语言结合块的功能对机械零部件的二维视图进行了参数化设计．利用ＡＭＥ模块和ＡＵＴＯＬＩＳＰ语言对三维立体进行了参数化设计．     

基于概率和模糊模式的人机系统优化设计方法

讨论了基于概率和模糊模式设计自动化人机系统的可能性．论述了面向对象结构化设计技术．检验了对于概率和模糊模式的功效指数积分法．分析了ＥＴＳ功能块的性质和可靠性．阐述了关于面向对象功能网络（ＯＯＦＮ）的系列 ＥＴＳ最优化的通用方案．证明了必要和充分的最优化条件．通过生产系统和逻辑推理机制,提出了一种直接变量选择法．     

VFP5.0下多媒体播放器的设计与实现

本文介绍了一种利用ＶｉｓｕａｌＦｏｘＰｒｏ５．０中的ＡｃｔｉｖｅＸ控件和ＭＭＳＹＳＴＥＭ中的ＭＣＩ函数来设计自制的多媒体播放器的方法。该播放器能播放ＤＡＴ、ＡＶＩ、ＭＯＶ、ＭＡＶ、ＭＩＤ等可视的或非可视的多媒体文件。     

一种新型短波数传MODEM的设计与研制

运用透明带内导音（ＴＴＩＢ）和前馈信号再生（ＦＦＳＲ）技术，设计了一种新型高质量数传ＭＯＤＥＭ，采用高速数字信号处理芯片（ＤＳＰ）ＴＭＳ３２０完成了软硬件设计，实现ＴＴＢ与ＦＦＳＲ技术，使ＭＯＤＥＭ具有抗信道衰落及抑制收发频率漂移等性能，而且结构简单，与电台采用音频接口，极大地方便了数传ＭＯＤＥＭ的推广与应用。     

基于自组织特征映射网络的纹理分类研究

提出了基于自组织特征映射网络（ＳＯＭ）的纹理分类方法。采用了适合纹理分析的纹理谱（ＴＳ）的概念，并在分类过程中引入了纹理谱特征向量，纹理谱向量是ＴＳ经过降维处理得到的．该特征向量反映了空间模式的纹理特征．在学习（训练）与分类识别中，采用了神经元网络模型．与ＴＳ相对应的特征向量重复地送入ＳＯＭ网络的输入端，网络的权向量则逐渐地将样本值聚类到各自的样本中心．计算机模拟实验表明，作者提出的纹理分类方案十分有效而且实用．本方案计算量小，学习周斯短，识别率高．本文最后给出了实验结果及分析．     

一个微机上的MIS开发工具

介绍一个微机上的ＭＩＳ开发工具──ＭＧＤＴＯＯＬ的设计和主要功能，它在许多方面类似于１９８６年开始流行于美国的ｅｘｃｅｌｌｏｒａｔｏｒ．     

用于高速数字系统的程序转储电路的设计

提出一种程序转储电路，该电路将普通ＥＰＲＯＭ中的程序内容转储到高速ＳＲＡＭ中，以代替高速ＲＯＭ．同时较详细地叙述了程序转储电路的设计方法和工作原理，并给出了在高速数字信号处理器ＴＭＳ３２０１０系统中的应用实例     

一种新型SPWM逆变器

本文提出一种主电路采用ＩＧＢＴ，控制电路主要采用ＧＡＬ和ＥＰＲＯＭ设计的新型ＳＰＷＭ数字控制逆变器，论述了设计方法，给出了实验结果，该系统电路简捷、速度快，抗干扰能力强，可在很宽的载波频率范围内应用和深入研究。     

1000V MOSFET用常规低压工艺的实现

采用常规低压集成电路工艺实现了耐压达１０００Ｖ的高压横向ＭＯＳＦＥＴ，详细介绍了该高压横向ＭＯＳＦＥＴ的设计方法、器件结构、工艺技术及测试结果，文中从实验和分析的角度上首次探讨了覆盖在漂移区上面的金属栅长度对该高压横向ＭＯＳＦＴ击穿电压的影响。     

单向碳─碳复合材料的早期蠕变行为

用化学气相沉积（ＣＶＤ）热解碳制备了Ｔ３ＯＯ（ＰＡＮ）碳纤维增强热解碳的单向Ｃ／Ｃ复合材料．在氩气保护下测定了这种材料在同一应力不同温度和同一温度不同应力下的早期蠕变行为．通过数学处理，早期蠕弯数据满足．ｍ可表示为：ｍ＝０．０００３Ｔ（Ｋ）－０．００１６σ（ＭＰａ）＋０．２０３２     

大角度圆弧抽芯机构设计

抽芯机构是完成活动型芯抽出和复位的机构,在模具中应用广泛,主要解决与开模方向不同的内侧孔、外侧孔或侧凹的制品;本文以塑料喷嘴产品为例,重点阐述了模具中大角度圆弧抽芯机构的设计思路并提供设计方案,成功解决了圆弧抽芯和脱模困难等问题;并通过对各种抽芯机构的分析比较,阐明各自应用场合及优缺点,最终选用斜槽圆弧抽芯机构,进行模具相关设计,并通过试模来验证设计的可行性,提高了塑件的质量和生产效率。     

通信软件的形式化研究及其应用

通过对ＯＭＴ（特别是改进的ＯＭＴ）模型的叙述,指出非形式化方法的缺点,然后给出了一个可能的面向对象技术的语法框架,最后用该框架对一个通信软件进行了描述,为改进的ＯＭＴ的形式化工作及其在通信中的应用打下了基础。     

膨胀阻燃聚丙烯复合材料的制备及其性能研究

为了进一步提高聚丙烯材料的阻燃性能,将一种新型大分子三嗪氰系成炭剂与包裹聚磷酸铵复配,通过熔融共混法制备膨胀阻燃聚丙烯复合材料,并研究了有机改性蒙脱土对此阻燃体系的热稳定性以及阻燃性能的影响。适当加入有机改性蒙脱土有利于提高材料的阻燃性能和热性能。在保持添加剂总质量分数25%不变的情况下,添加2%有机改性蒙脱土时,阻燃聚丙烯材料的极限氧指数上升到31.5,相比未添加样品,材料的阻燃性能有了明显的提高,但过量的有机改性蒙脱土反而会降低材料的阻燃性能。耐水性实验结果表明,此种膨胀阻燃聚丙烯复合材料具有优良的耐水性能。     

Integrated design method considering closed-loop stability for the slider-crank mechanism

The slider-crank mechanism is a transmission mechanism extensively used in engineering practice. It is necessary to use the control system for getting a satisfactory trajectory. So the mechanism design is composed of two parts, structural design and control design. These two parts impact each other and are tightly coupled, and the separate design can not obtain the best performance. Hence integrated design is imperative. By making use of the Lyapunov function, an integrated design considering stability is proposed in this paper, seeing that stability is the most basic requirements of a closed-loop system. Simulation results show that this method can effectively carry out the mechanism design, reduce the body weight, optimize mechanism performance and save the design cost simultaneously.     

Effects of low dose oxymatrine on mouse lymphocyte proliferation stimulated by Con A

Objective To investigate the effects of low dose Oxymatrine (OMT) on mouse lymphocyte proliferation stimulated by Con A making use of fluorescence dyestuff (CFDA-SE). Methods CFDA-SE staining and flow cytometry were used to detect the fluorescence intensity of lymphocytes after stimulated by polyclonal stimulators Con A and OMT. Then, related software was used to analyze the effects of OMT on mouse lymphocyte proliferation. Results After cultured for 48 h, CFSE fluorescence could be detected by cytometer, filial generation peaks did not appear in control group, which indicated that lymphocytes did not proliferate. Three peaks were obviously detected in Con A group which indicated that Lymphocytes divided after 48 h stimulated by Con A compared with the halving of the fluorescence intensity of control group. In groups with Con A and OMT treated. Primary generation peaks are all lower while filial generation peaks are significantly higher than groups with Con A treated only. This indicated OMT obviously promote lymphocyte proliferation. After cultured for 72 h, the fluorescence intensity changes between all groups are consistent with those of cultured for 48 h. Analyzed with CELLQuest software, it is shown that OMT could promote lymphocyte proliferation in 16, 8, 4 and 2 μg/mL respectively. Conclusions 1)CFDA-SE dyeing and flow cytometer were both reliable tools to analyse lymphocyte proliferation; 2) lower dosage of OMT could promote the proliferation of lymphocyte as a immunopotentiator. Correspondence     

Effects of low dose oxymatrine on mouse lymphocyte proliferation stimulated by Con A

Objective To investigate the effects of low dose Oxymatrine (OMT) on mouse lymphocyte proliferation stimulated by Con A making use of fluorescence dyestuff CFDA-SE. Methods CFDA-SE staining and flow cytometry were used to detect the fluorescence intensity of lymphocytes after stimulated by polyclonal stimulators Con A and OMT. Then, related software was used to analyze the effects of OMT on mouse lymphocyte proliferation.Results After cultured for 48 h, CFSE fluorescence could be detected by cytometer, filial generation peaks did not appear in control group, which indicated that lymphocytes did not proliferate. Three peaks were obviously detected in Con A group which indicated that Lymphocytes divided after 48 h stimulated by Con A compared with the halving of the fluorescence intensity of control group. In groups with Con A and OMT treated, Primary generation peaks are all lower while filial generation peaks are significantly higher than groups with Con A treated only. This indicated OMT obviously promote lymphocyte proliferation. After cultured for 72 h, the fluorescence intensity changes between all groups are consistent with those of cultured for 48 h. Analyzed with CELLQuest software, it is shown that OMT could promote lymphocyte proliferation in 16, 8, 4 and 2μg/mL respectively. Conclusions 1) CFDA-SEdyeing and flow cytometer were both reliable tools to analyze lymphocyte proliferation; 2) lower dosage of OMTcould promote the proliferation of lymphocyte as a immunopotentiator.     

机构设计树与机构创新设计

在研究机构创新设计的基础上,结合树形结构的相关理论,提出了机构设计树的新概念,并详细地阐述了机构设计树的特点,以及机构设计树在机构创新设计中的应用。实例证明,机构设计树不仅是一种由基本运动链向具体机构转化的分析工具,而且还提供了一条由基本运动链设计出不同机构的捷径。     

Q波段脊过渡正交模耦合器设计

描述了一款宽带脊过渡正交模耦合器,该正交模耦合器中心频率为40 GHz,相对带宽50%,拟应用于射电望远镜Q波段接收机系统。该正交模耦合器由双脊过渡-分支接头、Y型接头、E型弯头组成,其结构紧凑,降低了加工装配误差对电气性能的影响。对该正交模耦合器实际加工后进行测试,其Y型接头输出口回波损耗≤ -22.7 dB,直臂输出口回波损耗≤ -21.0 dB,Y型接头输出口-直臂输出口隔离度≤ -45.6 dB。实测结果表明该正交模耦合器反射损耗和隔离度与仿真结果的曲线变化趋势基本吻合,在实际工作频带30~50 GHz范围内可以满足射电天文观测需求。     

论地域性室内设计中传统装饰图案元素的运用

地域性室内设计中运用传统的装饰图案元素可丰富设计的内容,深化设计的内涵。将具有地方文化特色的装饰图案元素运用现代的技术手段加以提炼和改造,使其在传统的基础上更具时代特色,并将其运用到现代的室内设计中来,能体现出一种独特的具有地域性的室内设计风格。     

设计模式的元建模体系结构及其应用

提出一个基于UML的设计模式的元建模体系结构,给出了设计模式的公共元模型。该元建模体系结构能够较好地描述设计模式的本质特征,有助于设计模式的有效应用和相关工具的开发。