基于循环水洞设备的超空泡创新实验研究

针对超空泡流场的原理及其特殊物理现象,开展了基于循环水洞设备的超空泡实验研究。以此为基础设计了适合于力学专业研究生课程、大学生科技创新或本科生毕业设计选题的创新实验——通气超空泡模型水洞实验。参与实验的学生自主确定试验工况,快速掌握实验技术,并直接接触前沿科学研究,取得了较好的教学效果。     

论思想政治理论课学习策略的应用与创新

传统的思想政治课，总是强调外在的强制灌输，从而忽视了学习者自身的状况，然而在以后的教学活动之中，需要采取各种各样的学习策略，化解各种心理问题，提高自己的修养和获取所需要的知识技能。自学能力、对话学习能力和考察活动学习能力的培养，是思想政治理论课学习过程中所要重点掌握的策略。     

青年诺贝尔奖得主科研选题的类型和特点分析

 在百余年诺贝尔科学奖的获奖者中，获奖成果出自青年时期（40岁以下）的占了相当的比例。这些青年获奖者取得重大成果的因素之一，就是他们的选题很成功。作者发现，青年获奖者的选题类型包括7种，这些类型及其特点，对中国青年科研工作者有极大参考价值。     

基于迟滞噪声混沌神经网络的TDMA广播调度

分组无线网络的时分多址(Time Division Multiple Access,TDMA)广播调度问题是一个经典的NP-hard组合优化问题,可用神经网络求解.混沌动力学、随机游动和迟滞动力学均能够有效地提高神经网络的优化性能.为了提高迟滞动力学在噪声混沌神经网络中的优化能力,又不增加噪声混沌神经网络的参数,将噪声混沌神经网络的噪声幅值作为Sigmoid函数的中心参数,并通过神经元的输入变化来控制噪声幅值形成迟滞环,提出了一种新型的迟滞噪声混沌神经网络.对神经元状态演化行为的研究表明,该网络能够同时演化出混沌倒分岔、随机游动和迟滞等动力学行为.对分组无线网络的TDMA广播调度问题的仿真表明,提出的迟滞噪声混沌神经网络具有更好的优化性能.     

一种基于双向数据流网络编码的无线组播机会路由

针对现有机会网络编码中存在的编码机会依赖于不同数据流间的连接节点个数和编码效率等问题,结合机会通信和网络编码的特点提出一种新的路由解决方案.首先在传统无线路由算法中引入流内编码和流间编码的概念,并设计合理的网络编码策略和响应机制,以提高编码的机会和网络的吞吐量等性能.仿真实验显示,新的优化算法可显著提高网络的吞吐量和编码增益.     

与时俱进跨越发展——全省部分高新区2002年上半年发展掠影

2002年上半年，鞍山高新区实现技工贸总收入63亿元，比去年同期增长46％，实现工业总产值50亿元，比去年同期增长35％。其中高新技术产值24亿元，比去年同期增长118％。全口径财政收入1．26亿元，比去年同期增长5％。     

AutoCAD2000中三维模型生成二维视图的方法

介绍了应用AutoCAD2000软件强大的图纸布局功能，将已经绘制的三维模型直接生成二维视图的方法，包括设置图层、建立多个视图窗口、制作轮廓线和绘制中心线4个步骤。采用三维设计使得设计的零件几何表达精确，有助于工程制图的多媒体教学。     

Expression of Smad2 and Smad4 in rhesus monkey endometrium during the menstrual cycle and early pregnancy

Expression of Smad2 and Smad4 mRNAs in the endometrium of rhesus monkey on Days 8, 20 and 28 of the normal menstrual cycle and on Days 12, 18 and 26 of early pregnancy was detected using in situ hybridization. The results showed that Smad2 and Smad4 mRNAs were mainly localized in luminal epithelium and glandular epithelium. The expression of Smad2 mRNA in glandular epithelium was sustained at moderate level on Days 8, 20 and 28 of the menstrual cycle, while the expression of Smad4 gradually increased with the menstrual cycle. Both Smad2 and Smad4 mRNAs in functionalis glandular epithelium were expressed at the highest levels on Day 12 of early pregnancy, while in basalis glandular epithelium the most abundant expression of both Smads occurred on Days 12 and 18 of pregnancy. On Day 26, both Smads mRNAs were expressed at the lowest levels either in functionalis or in basalis. The data suggest that the epithelium is the major compartment where TGF-βs/activins exert their biological effects via Smads, and that Smad4 may play a role in the maintenance of endometrial gland function during secreting period of the menstrual cycle. During lacunar stage of early pregnancy, Smad2 and Smad4 are implicated in the tissue remodeling of endometrial functionalis and basalis, and during early villous stage both Smads are functional primarily in basalis.     

Information Model for Connection Management in Automatic Switched Optical Network

The three types of connections (Permanent Connection, Soft Permanent Connection and Switched Connection) provided by ASON can adapt the requirement of different network services. Management and maintenance of these three connections are the most important aspect of ASON management. The information models proposed in this paper are used for the purpose of ASON connection management. Firstly a new information model is proposed to meet the requirement for the control plane introduced by ASON. In this model, a new class ControlNE is given, and the relationship between the ControlNE and the transport NE (network element) is also defined. Then this paper proposes information models for the three types of connections for the first time, and analyzes the relationship between the three kinds of connections and the basic network transport entities. Finally, the paper defines some CORBA interfaces for the management of the three connections. In these interfaces, some operations such as create or release a connection are defined, and some other operations can manage the performance of the three kinds of connections, which is necessary for a distributed management system.     

二维高超音速边界层扰动演化的数值研究及小激波的存在对流场结构的影响

采用三种不同的计算格式对Mach数为6, 8, 10的高超音速边界层中的二维扰动的扰动演化做了直接数值模拟. 在入口处引入不同幅值的第二模态T-S波, 研究了小激波开始生成时扰动幅值大小与Mach数的关系. 通过对扰动速度剖面与线性稳定性理论值的比较, 研究了小激波对流场结构的影响.