旋风除尘器流场仿真分析

为分析旋风除尘器的速度场和分离效率,通过计算流体力学(Computational Fluid Dynamics,CFD)方法研究典型的旋风除尘器的强旋流场.用ANSYS Workbench提供的Geometry和Mesh软件进行三维几何建模和非结构网格划分,以高炉煤气的除尘为例进行流场仿真.湍流模拟采用雷诺应力模型,分离效率预测采用基于拉格朗日方法的离散相模型(Discrete Phase Model,DPM).通过分析压力场和速度场的分布,得到旋风除尘器中的内、外旋流结构;该结构并非完全稳定,涡轴存在一定的摆动.仿真结果表明选用的旋风除尘器模型对高炉煤气有良好的除尘效率.     

证据理论数据融合计算分析软件的设计与开发

针对多源数据融合中计算量大的问题，设计开发了证据理论数据融合计算分析软件。提出该软件的体系结构，并分析和说明其功能。最后，以多源水质监测数据为对象，采用本软件进行融合计算分析，说明它能够减少计算量，同时具有操作简便、直观、高效、通用性强等特点。     

莱钢3200m~3高炉轴流旋风除尘器排灰系统自动控制

本文结合莱钢3200m3高炉煤气除尘工艺,设计了轴流旋风除尘器排灰自动控制系统,重点阐述了控制系统的控制功能及控制系统的硬件配置和软件组成。     

化工原理实验报告批改软件的开发

介绍了化工原理实验报告批改软件的主要内容、设计思想及功能,该软件可用于化工原理实验报告的批改,追踪学生实验数据的处理及计算过程,指出学生数据处理出错的原因。该软件具有操作简单、使用方便等特点。     

缓冲溶液配制软件的开发

以Microsoft．NET框架为开发平台开发缓冲溶液配制软件，并使用ASP．NET将软件扩展至基于Web的远程计算。该软件根据化学平衡、电荷平衡原理精确计算缓冲溶液的配制方案，计算结果准确、界面友好、容易操作，可广泛应用于各种情况的缓冲溶液配制方案的计算。介绍该软件的计算原理、体系结构及应用。     

扩散式旋风除尘器三维气相场的数值模拟

采用计算流体动力学(CFD)的数值方法,用RSM模型模拟计算扩散式旋风除尘器内气相流场的三维速度分布和压力分布。模拟结果显示:在反射屏以下部分,其速度和压力变化不明显;反射屏顶部以上速度呈"三峰"对称分布;压力损失最大的位置在排气管下端与进气口下端相平齐的位置。     

指标体系法通用评价软件的开发与应用

文章以VB6.0和Access数据库为平台、采用模块化程序设计技术,设计了一种以指标体系法为基础的通用评价软件,介绍了该软件的设计思路、结构及基本功能。该软件可适用于不同类型的评价指标体系,具有专家评分统计、指标权重的重新分配与自动计算、评价操作、报表和图形输出、数据库管理等功能。实例验证该软件具有较高的实用价值。     

ChemCAD软件及在化工课程设计中的应用

ChemCAD是美国Chemstations公司开发的化工流程模拟软件，广泛应用于化学和石油工业、炼油、油气加工等领域中，为工艺开发、工程设计、优化操作和技术改造提供理论指导。本文主要介绍该软件功能和应用方法，结合某厂乙苯车间的苯回收塔和乙苯产品塔工艺计算和设计实例，讨论其在化工课程设计中的应用。并将乙苯塔ChemCAD计算结果和Aspen Plus计算值以及生产值进行比较、．相对误差小，符合较好。     

结晶器振动偏移和相位差的在线检测与计算方法

根据板坯连铸机结晶器的振动规律，设计并实现了结晶器振动参数在线辨识及其计算软件。实际运行表明：该软件操作简单。运行稳定，在不同拉速工况下均可精确、快速地对结晶器的振动状态检测、计算、显示、报警和存储。为进一步提高板坯连铸机的拉坯质量和产量，判断传动系统磨损、导向系统偏差等设备故障提供了依据。     

Protel DXP2004的应用分析

Protel DXP 2004是Altium公司最新一代全线的桌面板级设计系统。该软件具有绘制原理图、设计印刷电路板、电路仿真等功能,具有操作简单,实用性强等优点。是电子工程师、电路设计工作者和大中专院校师生进行电子设计最有用的设计软件之一。本文结合实际需要,探讨了该软件在电路设计中的应用,研究了该软件的仿真功能在电子电路实验教学中的应用,分析了利用该软件设计的电路原理图插入Word文档的具体操作方法,并对操作该软件的方法步骤进行较为详尽的阐述。     

参数化桩帽自动绘图系统的设计与实现

港口工程中有大量标准化构件。将这些标准化构件的制图进行参数化、程序化不但可以减少大量重复性劳动,还可以大幅度提高工程制图的效率和质量。利用Auto CAD 内嵌的具有强大功能的VBA开发出带有人性化用户界面的参数化桩帽结构配筋自动绘图系统。该系统中集成了参数化设计和图库管理,显著提高了桩帽设计过程中的绘图质量和效率。     

The SIMTAR CAD/CAE system for the interactive computer aided design of wastewater treatment facilities

It can be stated that the development and application of CAD/CAE systems in engineering have evolved in parallel with the evolution of computers. However, in the technological field of wastewater treatment there is so far a considerable gap between capability of hardware and software available for simulation and the design of treatment facilities. SIMTAR, a CAD/CAE system, implies an effort to adjust this situation. It is a handy tool for the design and evaluation of wastewater treatment plants -WTP's-. In this system the whole of the stages involved in the design of WTP's (calculation of equipment sizes, cost estimation, and drawing of equipment plants) can be accomplished. The input is done interactively by means of menus and a graphical interface, which allows the user to generate the simulation diagram and the treatment process flowsheet. Results computed by SIMTAR fit quite well with those calculated by several engineering firms for the Manresa and Martorell's plants (Catalonia, Spain).     

Expressing through digital photographs: an assistive tool for persons with aphasia

This paper describes the design of an assistive tool called CoCreation that can help people with aphasia to express daily experiences by utilizing digital photographs. CoCreation can upload the user’s pictures and can cluster them as a function of the time at which the pictures were taken. Pictures taken within a short period of time are assumed to highlight a single activity. The user is able to select a cluster and can edit the pictures by dragging icons or drawing on top of them, or by typing words to create a caption. The pictures set the context for a story, while the additional tools such as keyboard and drawing pad allow the user to add information that is considered useful for sharing the experience. The paper presents the detailed design process and the preliminary evaluation of CoCreation with an experienced speech therapist.     

Managing design ideas with a shared drawing tool

The generation of design ideas in group discussion is a complex and dynamic process. The fluent expression of ideas and the ability to interact and build on representations created by others contributes significantly to the process. When group members are separated by physical distance, the fluency of this process is interrupted. Computerized shared drawing tools re-establish this fluency. Such tools need to aid not only the drawing process, but also the management of design ideas during the process. The paper lays the groundwork for the design of the idea management portion of a shared drawing tool. It presents a list of group idea management behaviours and identifies user requirements in support of these activities. A prototype shared drawing system is described which attempts to incorporate the user requirements into an interface design. The paper then presents the results of a usability study conducted on the prototype. The interface performed miserably, but the study provided support for the user requirements and gave detailed insight into how a shared drawing interface should be designed.     

Speech-driven graphics: a user interface

This paper discusses an ongoing research project concerned with exploring the potential of speech recognition equipment to enable hands-free drawing on the visual display unit of a Macintosh computer system. The paper concentrates on some of the more intractable problems, such as how to control the location and movement of the drawing cursor with any degree of precision, and how to communicate with the recognition software in a way which minimizes perceived ambiguities in the intentions of the user. In particular, consideration of the manner in which graphics commands are verbalized is an essential prerequisite for the successful design of an intuitive use of the system and this is an area on which much of the research effort was concentrated. It is already apparent that it will be very difficult to resolve satisfactorily certain aspects of speech-controlled drawing with the current generation of speech recognizers.     

Visual C#.NET实现用户自定义图形编程方法

信息系统终端用户可以自己绘制图形,以鼠标拖拽的方式实现已绘制图形的移动、缩放等功能,不仅会极大地方便用户使用,同时可以满足用户现场绘图的需求。对如何在信息管理系统中实现用户自定义图形进行分析和设计,并在Visual C#.NET编程环境中使用GDI＋等技术实现用户自定义图形,使终端用户能够动态创建可以用鼠标拖拽方式移动、缩放的图形,实现直线、矩形、文本的创建、移动、缩放功能,绘制的图形可以保存为XML文件,可以加载已保存XML文件。文中描述了自定义图形编程方法的设计和实现。     

双网通信模式测控系统的研究与实现

提出一种具有Wi-Fi/GPRS双网模式通信功能的测控系统设计。该系统的网络传输通道既可以是Wi-Fi网络,也可以是GPRS网络,双网模式解决测控设备快速接网时,布线复杂、成本高和可靠性差等问题,为远程通信事业提供便利节约成本。手机监控终端是Android系统智能手机,如果手机使用者有用户的监视密码,则可以监视用户现场的所有模块的实时数据和初始化参数。如果手机使用者有用户的控制密码则可以修改用户现场的参数,实现远方校准,修改模块的工作模式。     

三维建模软件Solidworks在科研革新中的应用

2015 年以前的油田公司科技革新汇报中,零件设备类革新多以照片进行展示,由于拍摄角度等问题,往往不 能够将设备的细节展示清楚,而使用Solidworks 制作的3D模型可以全角度旋转,清晰地展示物体的所有尺寸、细节、轮廓图、 运行方法等,生成的工程图可以作为车间认可的图纸,对设备推广具有很强的辅助性,符合油田公司对于3D模型的展示要求。     

Graph visualization techniques for web clustering engines

One of the most challenging issues in mining information from the World Wide Web is the design of systems that present the data to the end user by clustering them into meaningful semantic categories. We show that the analysis of the results of a clustering engine can significantly take advantage of enhanced graph drawing and visualization techniques. We propose a graph-based user interface for Web clustering engines that makes it possible for the user to explore and visualize the different semantic categories and their relationships at the desired level of detail