中国犯罪防治的主流之路

我国目前犯罪预防体制存在较大漏洞,应从劳改释放人员和非劳改释放人员中的特定主体进行着重预防工作.问题解决应从国家机关、社会以及家庭等方面着手.心理预防是我国目前以至未来犯罪防治的主流之路.     

对变压器真实油温的智能化监测

本文中作者通过FLUENT温度场解析和变压器实物温升试验,找出了变压器油温最热的真实位置,从而提出智能化监测的解决方案,为真实反映油温升提供可靠的依据.     

基于SOPC的RSA密码芯片设计

为了提高RSA密码算法在密码芯片上的实现性能,基于SOPC技术设计了一款RSA密码芯片,完成了NIOS Ⅱ的软硬件协同设计.该硬件系统由处理器、存储模块和自定义指令3部分组成,其关键的模乘模块采用改进的模乘算法和交叉存取设计方案设计实现,显著提高了系统性能.整体设计在ALTERA的CYCLONEⅡ器件上进行了验证与测试,并进行了逻辑综合及布局布线.与传统的RSA密码芯片设计相比,该芯片系统灵活性高,资源占用少.     

OWL本体到软件代码模型映射的研究

OWL本体在知识工程中有着广泛应用,人们考虑用它来解决软件开发中的问题。该文分析OWL本体和Java面向对象模型问的差别,指出直接映射存在的问题,阐述OWL本体映射到面向方面模型的特点,并提出OWL本体向AspectJ面向方面模型映射的具体方法,较好实现OWL本体向软件代码模型的映射。     

溢流堰在污雨水管道交叉处理中的应用

新建污雨水管道与已建管道交叉时,往往出现高程冲突,文章以工程实例来说明溢流堰在管道交叉处理中的应用,为解决污雨水管道高程冲突提供了一个新方法。     

Bone Formation Process of β-TCP Ceramics with Tetracycline Tracing

To study the new bone formation in the bone defect area after implantation, the tetracycline tracing method was used. The results show that new bone formed in 1 month, and the formation rate of new bone was very high (8. 164 μm/day), considerably faster than that of control groups (3.219 μm/day). The new bone grew up quickly and β_TCP particles were surrounded by double fluorescence bands which became more obvious. The new bone formation rate was maximal at 2 months, and then gradually reduced. The rate was steady at 4 months, and then reduced to resembling as the normal physiologic metabolism of bone, which indicated the implanted materials were completely replaced by bone. Calcium phosphate materials had the ability of osteoconduction.     

铅钙合金浇铸系统的机-电-液一体化设计

讨论了铅钙合金浇铸系统机械、液压与电器控制构成、工作原理及设计特点。     

植物叶缘形态特征的建模和可视化研究

叶片形态模拟是植物建模和可视化的重要组成部分,而叶缘是叶片的一个重要形态特征.提出了一种交互式的叶缘生成方法,该方法首先利用边缘检测法从叶片的数字图片提取叶片的边缘轮廓,然后从边缘轮廓中选取特征点,并构成叶缘的拟合线;最后通过在边缘拟合线段上利用三角折线段和二次曲线等生成各种叶缘特征.系统同时提供了交互式的图形界面,用户能够方便地生成各种常见的叶缘形态特征.实验结果表明,该方法能够产生较强的真实感效果.     

Intelligent Video Traffic Smooth Mechanism for Multimedia Communication

A principal challenge in supporting real-time video services over ATM is the need to provide synchronous play-out in the face of stochastic end-to-end network delays. In this paper, an intelligent traffic smooth mechanism ( ITSM ) is proposed to meet the continuity requirement which is composed of a back-propagation neural network ( BPNN ) traffic predictor, a play-out buffer, and a fuzzy neural network ( FNN ) based play-out rate determinator. The BPNN traffic predictor online predicts the mean packet rate of the traffic in the future interval ( FI ) and the FNN is designed to adaptively determinate the play-out time according to the number of packets in the buffer and the traffic character predicted. Simulation results show that compared to the window mechanism, ITSM achieves high continuity with accepted delay. Furthermore, ITSM can be adaptively modified to meet the QoS of different kinds of services by FNN parameter training.     

干式站用变压器存在的问题及设计选型安装建议

介绍了干式变压器在平顶山地区的使用情况和运行状况,提出了在设计选型及设备安装方面的改进建议。