• 한국소성가공학회:학술대회논문집
• /
• 한국소성가공학회 2001년도 춘계학술대회 논문집
• /
• pp.71-76
• /
• 2001

This paper describes a research work of developing system for conceptual die design system for Fine blanking. The method of approaching to the system is based on the knowledge-based rules. Knowledge for the system is formulated from experimental results and the empirical knowledge of field experts. This system has been written in VisualLISP on the AutoCAD using a personal computer and in Microsoft Visual Basic ver.6.0. Transference of data is accomplished by DXF (Drawing Exchange Format) method. This system consists of six modules, which are cognition of a drawing, cognition of shear length, calculation of shear force, materials properties database, determination of degree of difficulty of the product, determination of approximate life of punch and die modules. Results carried out in each module will provide efficiency to the designer and the manufacturer of die for Fine blanking. But the main focus of this system is the design of die for Fine blanking in the level of general concept. In order to use powerful tool in this field, developed system will be studied continuously.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
• /
• pp.153-159
• /
• 2004

산업의 경쟁력 요소로서 지식의 중요성은 정보기술의 발전과 함께 나날이 커가고 있으며 이에 따라 제시된 기업경영 기법이 지식경영이다. 건설업의 경우도 다양하고 광범위한 지식이 요구되는 산업 특성으로 인하여 지식경영의 중요성은 커지고 있으며, 이에 따라 많은 건설업체가 지식경영을 도입, 추진하고 있다. 본 논문에서는 이러한 건설업체 도입 및 추진사례 중 삼성건설의 "1) 자료형 지식자산과 인적 지식자산으로의 지식규정", "2) 공사 프로세스와의 결합을 통한 지식경영 조직접목", "3) 지식경영에 있어서의 정보화의 역할과 기여" 3가지 추진 사례를 중심으로, 실제 조직에의 적용時 문제점, 해결방안 및 그 결과를 제시함으로써, 건설업에서의 지식경영 발전과 이를 통한 지식산업으로서의 건설업 발전방항을 모색해 보는 기회를 제시해 보고자 한다.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 1994년도 가을 학술발표회 논문집
• /
• pp.137-144
• /
• 1994

This study describes an application of a knowledge-based system for a part of the development of an integrated structural design system. In preliminary structural design procedure, most structural design operation are performed by structural engineer's manual method. These lack of systematic operation hampers the effective system integration. By introducing expert system to the structural planning stage, structural engineer can automate structural Planning process of an integrated structural design system for complex design. Engineering data management is receiving increasing attention due to complexity of information necessary for performing structural engineering operations. So, in this paper, we describe a methodology for automating conceptual structural design and developing a knowledge-based system integrated with database. At the end, we use an implemented example to support our methodology.

• 대한전기학회논문지:전력기술부문A
• /
• 제48권7호
• /
• pp.863-871
• /
• 1999

While Logic Based Expert System (LBES) has a merit of rapid and complete inference, it also has a defect of huge knowledge base. Hierarchical LBES (HLBES) replaces the assertion time inference of LBES with the multi-level logic minimization procedure, and it guarantees smaller knowledge base comparing with LBES. This paper has two contributions. The one is proposing so-called fact-minimization procedure which reduces not only the number of facts or measured events but also the size of knowledge base dramatically. The other contribution is application of HLBES and the proposed fact-minimization to the fault diagnosis of power system. The application is successfully performed in the example with the transmission system which takes 72 goals and 352 facts.

• 마이크로전자및패키징학회지
• /
• 제8권3호
• /
• pp.11-17
• /
• 2001

The design and manufacture of injection molded polymeric parts with desired properties is a costly process dominated by empiricism, including the repeated modification of actual tooling. This paper presents an expert design evaluation system which can predict the mechanical performance of a molded product and diagnose the design before the actual mold is machined. The knowledge-based system synergistically combines a rule-based expert system with CAE programs. Heuristic knowledge of injection molding is formalized as rules of an expert consultation system. The expert system interprets the analytical results of the process simulation, predicts the performance, evaluates the design and generates recommendations for optimal design alternatives.

• 한국정밀공학회지
• /
• 제15권3호
• /
• pp.18-23
• /
• 1998

This paper describes a research work of developing a computer-aided design of blanking and piercing for irregular-shaped sheet metal products. An approach to the CAD system is based on the knowledge-based rules. Knowledge for the CAD system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of four main modules, which are input and shape treatment, flat pattern layout, production feasibility check, and strip layout module. Based on knowledge-based rules, the system is designed by considering several factors, such as radius and angle of bend. material and thickness of product, complexities of blank geometry and punch profile, and availability of press. This system is capable of unfolding a formed sheet metal part to give flat pattern and automatically account for the adjustment of bend allowances to match tooling requirements by checking the dimensions and relationships of parts of the folded product. Also this system can carry out a process planning which is obtained from results of irregular shape of product that was successful in production feasibility check module according to flat pattern layout and generate strip layout drawing in graphic forms. The developed system provides its efficiency for flat pattern layout, and strip layout for the irregularly shaped sheet metal products.

• 국제학술발표논문집
• /
• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
• /
• pp.487-492
• /
• 2011

As a knowledge-based economy is emerging, knowledge management (KM) is being rapidly disseminated in both academic circles and the business world. Accordingly, how to effectively manage knowledge is vital to the survival and advance of a company, particularly in project-based industries such as construction. For these reasons, construction companies have adopted IT-based Knowledge management systems (KMS), which is the technology platform and infrastructure that an organization employs to support knowledge management. However, many construction companies have spent resources on developing a KMS that only focus on codification. Furthermore, small and medium-sized companies have limited resources to afford extensive investments. This research addresses the problems found in the current KMS and develops a web-based construction knowledge management portal (CKMP). To achieve these objectives, a case study is conducted and requirements for implementing KM are identified. Based on the identified requirements, this paper builds CKMP using Expert Index (EI), blog, ontology based knowledge retrieval, and wikiblog. The most important functionality of CKMP is their fundamentals to synchronize and support KM process. In order to validate the CKMP, a pilot test with actual users is conducted, and the usability of the system is compared with the current systems. This study is relevant to both the construction industry and academia, as it provides a means of enhancing the performance of KM.

• 디지털산업정보학회논문지
• /
• 제6권2호
• /
• pp.169-182
• /
• 2010

The purpose of the study is to prospect the application of knowledge awareness system in the use of the digital textbook which is one of the main educational political projects based on the exploration of the awareness theory for the computer-supported collaborative learning. To do this, first, knowledge awareness theory for computer-supported collaborative learning (CSCL) as a rationale for digital textbook which supports the collaborative learning was introduced. Second, three functionalities of knowledge awareness systems were extracted by analyzing the representative knowledge awareness tools of CSCL environment. Third, application prospects of knowledge awareness system toward the development and utilization of digital textbook were presented. The paper suggested the need of more researches such as the prototype development of digital textbook which applies the knowledge awareness system's functionalities and empirical researches which examine their effectiveness and efficiency.

• 한국도서관정보학회지
• /
• 제35권2호
• /
• pp.415-436
• /
• 2004

본 연구에서는 크게 다음과 같은 두 가지 목적을 갖고 있다. 첫째, 지식경영과 지식관리시스템에 대한 이해를 바탕으로 방송사의 지식경영 및 지식관리시스템 도입을 제안하고, 방송사에 적합한 하부시스템을 갖춘 통합지식관리시스템 구축 모형을 제안하고자 한다. 둘째, 조직의 지식관리시스템 설계와 개발을 위한 방법론으로 팀 기반 접근에 대하여 설명하고 지식관리시스템 구축 프로젝트 과정에 대하여 자세하게 제시하고자 한다. 본 논문에서는 방송사의 지식관리시스템 구축에 목적을 두고 이를 위해 6개 방송사의 웹 사이트를 비교 분석을 하였다. 그리고 방송사에 관한 자료 수집 및 현황분석을 토대로 방송사의 지식관리시스템을 5가지의 하부시스템인 (1)방송기술지원시스템, (2)방송컨텐츠시스템, (3)고객관리시스템, (4)열사네트워크시스템, (5)인사 관리시스템을 포함한 통합관리시스템의 모형을 제안하였다. 한편, 본 연구에서 사용한 팀 기반 접근법은 다른 조직의 지식관리시스템 구축에도 적용 가능하다고 본다.

• 한국정보시스템학회지:정보시스템연구
• /
• 제18권3호
• /
• pp.299-326
• /
• 2009

R In today's competitive and global business management, Concern of an enterprise is to strengthen the core competency and improve it's internal business process. Therefore, Interest in BPM(Business Process Management) has grown rapidly. BPM is recognized as best solution to meet the needs of organizations that seek the cost down, integration of information, reducing of risk, improvement of productivity. In the past, the company have usually made huge investments in knowledge management systems which are based on repository keeping tacit knowledge. But this paper shows feasibility of implementation of business process-based knowledge management system that could link knowledge with business process. From an academic point of view, Although There could be several ways to build the business process-based KMS. In this paper, when BPM project and KMS project were started at the same time, the way of how to provide workers with task-related knowledge was discussed. As an case study, an estimate process of H company was analyzed and process modelling was carried out and conceptional architecture framework was depicted.