《C/C++语言程序设计》课程考试系统的开发与应用

随着人工智能与大数据技术的飞速发展,传统纸质考试已经不能适应时代的发展需求,本文提出《C/C++语言程序设计》课程考试系统。提出本系统开发与应用的总体系统功能结构,阐述C/C++语言程序设计课程考试系统开发与应用过程中涉及的一些关键技术及系统应用功能结构模块、网络结构,并提出系统主要性能特色,以及系统的创新性和科学性。

基于部件的化工生产可视化实现方法

针对工业现场有很多数据需要在后台显示,工作状况需要在控制台显示的情况, 研究了实现现场可视化方法。通过GUI方法,使应用者有身临其境的应用效果。基于部件便于分工协作、程序模块化、利于调试的开发方式,使用了当前最流行的VC开发工具,利用VC强大的图形图像处理功能,制作出与现场设备外形相近的部件,同时添加必要的属性和方法体现其工作的动态效果。其后利用其他面向对象的编程语言,调用制作的部件,协调部件间的工作,以真实反映现场环境。最终通过ASP方式将可视化服务提供给使用者。

ActiveX控件在计算机辅助设计中的应用初探

以具休实例探讨了ＡｃｔｉｖｅＸ控件在计算机辅助设计中的应用，给出了部分源代码．对这种新的设计思想作了概念性的剖析与展望。

Study on ultracapacitor-battery hybrid power system for PHEV applications

For the battery only power system is hard to meet the energy and power requirements reasonably, a hybrid power system with uhracapacitor and battery is studied. A Topology structure is analyzed that the uhracapacitor system is connected with battery pack parallel after a bidirectional DC/DC converter. The ultracapacitor, battery and the hybrid power system are modeled. For the plug-in hybrid electric vehicle （PHEV） application, the control target and control strategy of the hybrid power system are put forward. From the simulation results based on the Chinese urban driving cycle, the hybrid power system could meet the peak power requirements reasonably while the battery pack＇ s current is controlled in a reasonable limit which will be helpful to optimize the battery pack＇ s working conditions to get long cycling life and high efficiency.

Seismic Isolation of Reactor Assembly for a Fixed Base Accelerator Driven System Reactor Building

In the SILER （Seismic-Initiated events risk mitigation in LEad-cooled Reactors） Project, it is interesting to apply seismic isolation technology for the reactor assembly of the fixed base reactor building for ADS （Acceleration Driven System） heavy liquid reactor MYRRHA （Multipurpose Hybrid Research Reactor for High-Tech Application） which contains the most critical safety related components, such as reactor vessel, safe shutdown and control rod mechanisms, primary heat exchangers, primary pumps, spoliation target assembly and fuel assemblies, etc. The purpose of this paper is to investigate the possibility of an application of a partial seismic isolation to the safety critical components only, here, the reactor assembly. This paper presents the preliminary analysis results of the isolated reactor assembly and compares these with those of seismic isolated ADS reactor building. The analysis results show the reduction of the seismic acceleration response but the increase of the relative displacement for the reactor assembly. Some safety issues, especially, coolant＇s incapable covering the reactor core make difficult to apply for the partial seismic isolation of the ADS reactor assembly due to large relative displacement occurring the partial isolation system. Further study on the partial seismic isolation application of the critical safety components are also discussed.

微软推出Visual Studio Kubernetes工具包预览版

微软表示,利用Visual Studio Kubernetes这个工具,使用者可以直接在该环境中,构建Kubernetes容器应用程序项目,或者让现有的.NET网页应用程序也兼容Kubernetes。除了公有云基础架构环境要支持Kubernetes,微软现在也针对开发者需要的开发环境,加强支持Kubernetes。近日,微软Visual Studio团队表示。

Multi-Phase QR ZCS Switched-Capacitor Bidirectional Power Converter for PV System Application

The multi-phase implementation in the QR （quasi resonant） ZCS （zero current switching） SC （switched capacitor） bidirectional DC-DC converter structure has been proposed to reduce current ripple, switching loss and significantly increase the converter efficiency and power density. This approach provides a more precise output voltage to obtain voltage conversion ratios from the double-mode versus half-mode to n-mode versus 1/n mode. This is accomplished by adding a different number of switched-capacitors and power MOSFET switches with a small series connected resonant inductor for forward and reverse schemes. The size and cost can be reduced when the proposed converter has been designed with the coupled inductors. The simulation and experimental results have been used to demonstrate the performance of the two-phase with and without coupled inductor interleaved QR ZCS SC converters for bidirectional power flow control application, and an extending structure for N-phase is mentioned.

New technique: Flexible resonant tank for a combined converter to achieve an HPS and LED compatible driver

High pressure sodium （HPS） lamp has been widely used in street lighting applications because of its maturity, reliability, high lighting efficiency, long life-time, and low cost. Light emitting diode （LED） is expected as the next generation lighting source due to its continuously improving luminous efficacy, better color characteristic, and super long life-time. The two lighting sources may coexist in street lighting applications for a long time. A novel HPS and LED compatible driver is proposed which is rather suitable and flexible for driving HPS and LED in street lighting applications. The proposed driver combines the LLC and LCC resonant circuits into a flexible resonant tank. The flexible resonant tank may change to LLC or isolated LCC circuit according to the lighting source. It inherits the traditional HPS and LED drivers＇ zero voltage switching （ZVS） characteristics and dimmable function. The design of the proposed flexible resonant tank considers the requirements of both HPS and LED. The experiments of driving HPS and LED on a prototype driver show that the driver can drive the two lighting sources flexibly with high efficiency.