检索结果-内蒙古大学图书馆

An object oriented approach to simulation model construction for CIM systems

simulation 1996年第2期66卷 93-105页

作者： Kwon, OB Jie, BS Department of Management Information Systems & Administration Yanbian University of Science & Technology Beishan Jie Yanji City Jilin Province P.R.China

simulation has been used as means of evaluating the performance of CIM (Computer Integrated Manufacturing) systems. The simulation modeling process for CIM systems, however, is quite complex and costly. To alleviate the problems of complexity and cost, an efficient modeling method is very important. This paper proposes an object-oriented methodology to share and refine the information on simulation modeling which is embedded in information repositories, such as corporate databases. Ways to derive the simulation models from an information repository and to generate executable simulation programs are also presented. A prototype system is implemented and used to build a simulation model of a tire manufacturing company to show the effectiveness and applicability of the methodology.

关键词： CIM modeling object oriented simulation information reuse petri net

来源：评论

学校读者我要写书评

暂无评论

A space-time object model - An object oriented model for parallel and distributed simulation

引用

IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS 2000年第4期E83D卷 815-823页

作者： Furuichi, M Ozaki, A Abe, K Nakajima, K Tanaka, H Mitsubishi Elect Co Informat Technol R&D Ctr Kamakura Kanagawa 2478591 Japan Mitsubishi Elect Co Adv Technol R&D Ctr Amagasaki Hyogo 6618661 Japan

This paper proposes a Space-Time object Model, an object oriented model that possesses space and time management mechanisms. The goal of this object model is to provide a common software infrastructure for implementing large-scale moving object simulations efficiently, such as car traffic simulations and disaster evacuation simulations, using a direct mapping scheme on a parallel and distributed computing environment. In this object model, the software infrastructure provides two principal functions, "Space Management" and "Time Management," which allows programmers to focus on application programming instead of parallel programming. Although there are several known infrastructure software, which provide the environment needed to develop and execute parallel and distributed simulations, they only provide a "Time Management" mechanism. In this paper, we present a Space-Time object Model and an overview of a program called OSim, which is an implementation of the Space-Time object Model. Then, we demonstrate the applicability and efficiency of this model by introducing the overview and evaluation results of a parallel car traffic simulation system using OSim.

关键词： parallel and distributed simulation object oriented simulation time warp breathing space time

来源：评论

学校读者我要写书评

暂无评论

Scheduling of unrelated parallel manufacturing cells with limited human resources

引用

INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH 2008年第2期46卷 405-427页

作者： Celano, G. Costa, A. Fichera, S. Univ Catania Dipartimento Ingn Ind Meccan I-95125 Catania Italy

In this paper the scheduling of batches of parts within a manufacturing system consisting of M unrelated parallel CNC manufacturing cells and employing a limited workforce capacity is investigated: the objective is to maintain the number R of available workers lower than the number M of the cells leaving unchanged the whole system output. Each cell of the system consists of a CNC machining centre which works batches of small mechanical parts, grouped together on a common pallet in accordance to the group technology principles. Batch splitting among CNC cells is not allowed and the setup time required by each batch is both sequence and cell dependent. The setup activities are fully performed by the workers employed within the manufacturing system;the working operations within the CNC cells are completely automated, thus the workers tasks are restricted only to the setup operations. The effect of reducing the human resource capacity on scheduling of parts within cells, and on several process performance measures, is investigated through an extensive design of experiment involving different process scenarios. The process activities and resources dynamics are simulated and optimized by means of an integrated simulation framework, consisting of an object-oriented simulator interfaced with a heuristic procedure, designed within the eM-Plant software environment. The obtained results show how the human resource can be maintained significantly lower than the number of cells without affecting the output of the manufacturing system.

关键词： scheduling cellular manufacturing parallel machines human resource object oriented simulation

来源：评论

学校读者我要写书评

暂无评论

Scheduling of unrelated parallel manufacturing cells with limited human resources

Scheduling of unrelated parallel manufacturing cells with li...

引用

2nd Group Technology/Cellular Manufacturing World Symposium

作者： Celano, G. Costa, A. Fichera, S. Univ Catania Dipartimento Ingn Ind Meccan I-95125 Catania Italy

关键词： scheduling cellular manufacturing parallel machines human resource object oriented simulation

来源：评论

学校读者我要写书评

暂无评论

simulation of an Implementation and Evaluation of the Layered Radio Architecture

Simulation of an Implementation and Evaluation of the Layere...

引用

作者： Neel, James O’Daniell Virginia Tech | University

Software radio is a radio that is substantially defined in software and whose physical layer behavior can be significantly altered through changes to its software. As a primary goal of software radio is the ability to support existing and future wireless protocols, software radio necessitates the use of a rapidly reprogrammable baseband processing solution. However third generation wireless protocols represent a significant increase in complexity over second generation protocols. Due to the natural performance sacrifices that must be made when moving an application from an Application Specific Integrated Circuit (ASIC) to a general purpose processor or a digital signal processor, it is feared that reprogrammable processing solutions may not suffice for the emerging wireless protocols, which would significantly hinder the realization of software radio, particularly in the handheld domain where power consumption and chip area are critical. Recently, the Configurable Computing Lab at Virginia Tech developed a new breed of reprogrammable processor which they called â custom computing machinesâ (CCM). Representing a dramatic departure from traditional architectures used for baseband processing solutions, CCMs utilize a large number of optimized and programmable processing cores connected through a programmable mesh. Due to this architectural approach, CCMs have been promoted as supplying a level of processing power and power efficiency similar to ASICs while providing a level of reconfigurability similar to that of a DSP. Subsequently, Dr. Srikathyayani Srikanteswara proposed a new software radio architecture, known as the Layered Radio Architecture, which is intended to facilitate the inclusion of CCMs into a software radio. The primary goal of the research presented in this thesis is to demonstrate how a particular CCM, Stallion, can be used within the Layered Radio Architecture to provide sufficient processing performance, power efficiency, and reconfigurabi

关键词： reconfigurable computing ccm stallion wireless soft radio dsp software radio wcdma layered radio architecture TMS320C6201 custom computing machine object oriented simulation oop colt Thesis

来源：评论

学校读者我要写书评

暂无评论

Educational simulation Software in Oberon

引用

IFAC Proceedings Volumes 1994年第9期27卷 107-110页

作者： A.H. Glattfelder X. Qiu W. Schaufelberger K. Reimann Automatic Control Laboratory Swiss Federal Institute of Technology Zurich ETH Zentrum CH-8092 Zurich Switzerland. Rector's Office Swiss Federal Institute of Technology Zurich ETH Zentrum CH-8092 Zurich Switzerland

Oberon is a new powerful object oriented programming environment from ETH. It has been especially developed for single user workstations and is freely available. As these basic ideas make it also very well suited forapplications in control engineering, a program to investigate this possibility was launched a little more than a year ago. First and very encouraging results in the area of simulation are presented in the paper where it is shown that a continuous and a discrete time as well as a discrete event simulator have been realized.

关键词： Control Engineering simulations Discrete Event Dynamic System simulation Oberon object oriented simulation

来源：评论

学校读者我要写书评

暂无评论

Integrating simulation and geographic information system 08

Integrating simulation and geographic information system

引用

Proceedings of the 2008 Spring simulation multiconference

作者： Haluk Akin Maria Bull Luis Rabelo José Sepúlveda Yanshen Zhu University of Central Florida Orlando FL

ISBN: (纸本)9781565553194

This paper presents the results of a software system which integrates geographical information systems (GIS), object oriented simulation (OOS), and multi-sensor fusion algorithms. This system allows the Navy to evaluate the performance of different multi-sensor configurations in order to identify enemy ships, friendly ships, or other entities present in the ocean. ArcGIS provides geographical information such as seabed composition, bathymetry, and proximity to the coast. The simulation system developed on AnyLogic takes the GIS data as input, and performs simulations to evaluate the impact of the geographical conditions on the ability of the sensors to identify entities in the ocean.

关键词： geographical information systems object oriented simulation GIS and OOS integration

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：