• Journal of the Korea Institute of Military Science and Technology
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• v.7 no.2 s.17
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• pp.88-99
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• 2004

A development of a software on radar target signature analysis is presented in this paper The target signature includes Radar Cross Section(RCS) prediction, Range Profile(RP) processing and Inverse Synthetic Aperture Radar(ISAR) processing. Physical Optics(PO) is the basic calculation method for RCS prediction and Geometrical Optics(GO) is used for ray tracing in the field calculation of multiple reflection. For RP and ISAR, Fast Fourier Transform(FFT) and Matrix Pencil(MP) method were implemented for post-processing. Those results are integrated into two separate softwares named as Radar Target Signature Generator(RTSG) and Radar Target Signature Analyser(RTSA). Several test results show good performances in radar signature prediction and analysis.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.469-472
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• 2002

자바의 Jini 기술을 이용하여 네트웍에 분산된 Java 컴포넌트 소프트웨어를 동적으로 통합하기 위한 방법론을 제안한다. 통합대상 개별 컴포넌트는 Jini 인터페이스(interface)를 구현하도록 설계하거나 혹은 기존 컴포넌트를 포장한 것으로서 네트웍에 구성된 Jini federation 에 Jini Service 오브젝트로서 공개된 것이다. 통합의 주체는 Service Discovery Manager 와 같은 특별한 Jini 헬퍼클래스 기반으로 작성된 클라이언트 프로그램이다. 클라이언트는 지정된 조건 (Entry 오브젝트)을 충족하는 컴포넌트 소프트웨어를 네트웍으로부터 Service Template를 이용하여 검색, 다운로드 한 후 단일한 GUI 를 가지는 프로그램에 통합한다. 필요한 컴포넌트만을 필요할 때 사용할 수 있고, 영구 설치의 필요성이 없으므로 소프트웨어 개발과 배포에 대한 새로운 관점을 제시할 것으로 판단된다.

• Journal of the Korean Institute of Educational Facilities
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• v.6 no.1
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• pp.5-20
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• 1999

With the advent of internet, the modern society is enjoying the benefits of the information age. As one of undesirable side effects of utilization of internet, however, it is often mentioned that young students are helplessly exposed to inappropriate and unqualified information. Therefore, in this paper, we will clarify the nature of inappropriate information to the younger generation and will argue for the needs of protecting the youth from inappropriate information. Especially the merits and limits of often motioned five different protective and regulatory measures are presented and analyzed, those are, establishment of acceptable use policy, active utilization of supervisory organization, promotion of Internet rating system, installation of filtering software, and legal and regulatory protection. As a fundamental means of resolving the problems, however, enforcement of systematic information literacy education, promotion of active utilization of sound information, development of search engines for the youth, design of diverse filtering softwares which can be selected by users, and increased attention by parents and teachers are suggested.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2849-2850
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• 2000

We developed an automatic 3D inspection system. The system consists of two parts one includes hardwares such as actuators. linear scales and a probe. etc. the other involves softwares for management and control of the system. Compared with existing 3D measurement systems. this system achieved automatically the inspection. This automatic inspection makes the system have some advantages to reduce a measurement time and to be easily used by operators.

• Computational Structural Engineering
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• v.2 no.2
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• pp.85-92
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• 1989

A modified skyline algorithm suitable for C language in this paper. The modified algorithm improves the computational efficiency and the structure of the program. Substantial reduction of execution time is achieved by simplifying assemblage and decomposition of the stiffness matrix. A source program is also provided for use in future development of finite element softwares.

• Journal of the Korea Society of Computer and Information
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• v.22 no.1
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• pp.77-87
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• 2017

In this paper, we propose an analysis of the sound source of virtual orchestral music in detail by using the production technology of sampling and playback, and technical experiments and verification for the most advanced Hollywood Library series of timbre and the timbre production and control technology of Vienna instrument Pro and other softwares, to find their solutions and come up with the best timbre production method for orchestral music from the perspective of the specific design ideas of the productions of virtual orchestral instruments. The so-called virtual orchestral instruments are non-real orchestral instruments, which are based on the imitation of timbre of real orchestral instruments, processed and synthesized through the scientific and technological means, and produced by the use of electronic equipments or computers. The study of virtual timbre production technology is very important, and it is like the study of composers' creative techniques. Not only scientific and advanced timbre production methods can be obtained from the study, but also new ways of future timbre production are expected to be explored.

• International Commerce and Information Review
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• v.9 no.3
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• pp.107-129
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• 2007

In 1990s, both development of internet and digital economy would make new products such as digital goods. Recently, digital goods composed of softwares, digital contents, and digital services have grown up rapidly in the world market. Characteristics of goods and transaction forms in the international trade of digital goods is different from those of traditional goods. Thus, this difference would appear a new risk that did not exist in the international trade of traditional goods. Identification and confirmation about unique export risks of digital goods would be necessary to the increase of export of digital goods needs; however, in spite of the importance, very few studies have been based on the export risks of digital goods particularly in research on the relationships between export risk management and export performance. This study classifies the types of export risks based on the previous studies, and examines the relationship between both management and identification of export risks.

• Publications of The Korean Astronomical Society
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• v.11 no.1
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• pp.57-73
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• 1996

As a continuing effort to develop an automatic control system for small telescope, we developed the software for telescope control and CCD observations under DOS operating system. For accurate pointing of the telescope in short amount of time, we modelled the angular speed of the telescope by aquadratic function of time (constant acceleration) for the first 15 second and then linear function of time (zero acceleration) aftwewards. By changing the telescope speed from 'slew' to 'fine' before the telescope reaches the desired position, we could achieve the accuracy of a few arcsecond. The CCD control software was written for model CCD-10 of CCD Technology. This CCD can be used for guiding purposes. We also conducted the study for remote control of the telescope using telephone line. Although it cannot be used for real observations at the present form, we succeded in remotely pointing the telescope to desired direction. As faster communication technologies become widely available, simple observations can be made remotely in the near future. Finally we report some observational results made with the present control system.

• Journal of the Korea Society of Computer and Information
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• v.21 no.1
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• pp.181-189
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• 2016

This study examined three elementary school computing curriculum - the CSTA K-12 computer science standards, the computing programme of the national curriculum in England, and the 2015 national curriculum in Korea - focusing on the educational objectives with the perspective of the revision of Bloom's Taxonomy of Educational Objectives. The CSTA K-12 computer science standards mainly addressed applying procedural knowledge and using digital technology is the main theme. The computing programme in England concentrated on understanding factual and conceptual knowledge of computer science, such as algorithms. The 2015 national curriculum also addressed applying procedural knowledge, but the main focus is making softwares and robots. The findings of this comparative analysis suggest that it is needed to set up concrete educational objectives for lower grade and make them related to the secondary education to make more coherent elementary-level learning objectives. And elementary-level computing learning objectives are needed to be organized with the perspective of knowledge and cognitive process level.

• Journal of the military operations research society of Korea
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• v.25 no.1
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• pp.87-106
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• 1999

There are many technical datum in related with design, test & evaluation and logistic support which will be exchanged between geographically isolated units and heterogeneous hardwares & softwares in developing and operating the weapon systems. The paper proposes the conceptual database schema to establish configuration management information systems in which these datum can be automatically interchanged, tracked, audited and status-accounted without errors under the various environments. The paper investigates how to identify and classify the data in accordance with document identification, task analysis, system development, logistic support, system test & evaluation and data management. Furthermore, the investigation includes drawing the subject areas and modeling the conceptual database schema to explain the relationships between these datum. Thus, the paper results in the conceptual framework and data models of configuration management information systems, while additional customization efforts be required in applying the models to a specific weapon systems R&D.