• Bulletin of the Korean Chemical Society
• /
• 제25권5호
• /
• pp.681-686
• /
• 2004

Ti-ZSM-5 prepared by secondary synthesis, from the reaction of H-ZSM-5 with vapor phase $TiCl_4$, was characterized with several physicochemical techniques including FT-IR and UV/VIS-DRS. It was found that zeolite structure, surface area and pore volume did not change, and the framework aluminum could not be replaced by titanium atom during the secondary synthesis of Ti-ZSM-5. The incorporation of titanium into the framework might be due to reaction of $TiCl_4$with the silanol groups associated with defects or surface sites. The formation of extra-framework titanium could not be avoided, unless the samples were further treated by water vapor at 550 $^{\circ}C$ or higher temperature. High temperature steam treatment of Ti-ZSM-5 prepared by chemical vapor deposition with $TiCl_4$was efficient to prevent the formation of non-framework titanium species. Ti-ZSM-5 zeolites prepared in this work contained only framework titanium species and exhibited improved catalytic property close to TS-1 prepared by hydrothermal synthesis.

• 한국전자거래학회지
• /
• 제18권2호
• /
• pp.191-203
• /
• 2013

정보 기술이 적용된 장비 및 운영 시스템의 발달로 실시간 운영 데이터를 수집할 수 있게 되었으며, 현재 많은 터미널이 생산성 분석을 위해 상세한 작업이력을 추적하고 있다. 터미널 운영자는 수집된 작업이력 데이터를 통해 운영 중 발생하는 문제점들을 해결할 수 있는 방안을 도출하기 원하지만, 방대한 양의 자료를 수작업으로 분석하기는 쉽지 않다. 본 연구에서는 터미널 운영 중 획득된 작업이력을 바탕으로 터미널 운영자가 원하는 컨테이너 터미널의 성능지표를 손쉽게 도출하기 위한 방안을 제시한다. 이를 위해 다양한 컨테이너 터미널의 환경과 운영 방식, 운영 장비 등을 지원하기 위해 범용적으로 사용될 수 있는 형식 프레임워크(formal framework)를 고안하였다. 본 연구에서 제안하는 프레임워크는 컨테이너 처리 객체라는 개념을 기반으로 터미널 형태, 로그 데이터, 장비의 워크플로우, 통계 처리 및 보고서를 각각 정의하는 사용자 명세 부분으로 구성된다. 그리고 제안된 프레임워크를 기반으로 터미널 성능 분석 시스템을 개발하여 그 유효성을 검증하였다.

• Journal of Advanced Marine Engineering and Technology
• /
• 제27권6호
• /
• pp.687-695
• /
• 2003

• International Journal of Computer Science & Network Security
• /
• 제22권11호
• /
• pp.121-126
• /
• 2022

The number of vehicles has increased exponentially over the past 20 years due to technological advancements. It is becoming almost impossible to manually control and manage the traffic in a city like Karachi. Without license plate recognition, traffic management is impossible. The Framework for License Plate Detection & Recognition to overcome these issues is proposed. License Plate Detection & Recognition is primarily performed in two steps. The first step is to accurately detect the license plate in the given image, and the second step is to successfully read and recognize each character of that license plate. Some of the most common algorithms used in the past are based on colour, texture, edge-detection and template matching. Nowadays, many researchers are proposing methods based on deep learning. This research proposes a framework for License Plate Detection & Recognition using a custom YOLOv5 Object Detector, image segmentation techniques, and Tesseract's optical character recognition OCR. The accuracy of this framework is 0.89.

• Nuclear Engineering and Technology
• /
• 제55권5호
• /
• pp.1791-1801
• /
• 2023

The multi-physics coupled methodologies that have been widely used to analyze the complex process occurring in nuclear reactors have also been used to the R&D of numerical reactors. The advancement in the field of computer technology has helped in the development of these methodologies. Herein, we report the integration of ADPRES code and RELAP5 code into the SALOME-ICoCo framework to form a multi-physics coupling platform. The platform exploits the supervisor architecture, serial mode, mesh one-to-one correspondence and explicit coupling methods during analysis, and the uncertainty analysis tool URANIE was used. The correctness of the platform was verified through the NEACRP-L-335 benchmark. The results obtained were in accordance with the reference values. The platform could be used to accurately determine the power peak. In addition, design margins could be gained post uncertainty analysis. The initial power, inlet coolant temperature and the mass flow of assembly property significantly influence reactor safety during the rod ejections accident (REA).

• 한국국방경영분석학회지
• /
• 제29권2호
• /
• pp.45-60
• /
• 2003

As we live in real If era, If become a mandatory component for nations and organizations to survive in severe competition. If is also thought of as strategic asset for effective business operations, yet there is no proved statement on the interoperability and system integration which causes serious problem in terms of requirement engineering among current systems. The National Defense Enterprise Architecture Framework is a strategic information asset base, which define the military operation activities for the mission, the information necessary for military operations, the technologies necessary for implementing new technology in response to changing operational needs. It is an integrated model or representation. Information Systems will be evolved by the National Defense Enterprise Architecture framework. The purpose of this framework is to present overall picture of national defense information system domain so that information systems are interoperated, integrated and information sharing is increased among affiliated organization of Defense Military.

• 한국IT서비스학회지
• /
• 제8권4호
• /
• pp.87-101
• /
• 2009

The current information system audit merely inspects a web based information system by focusing on checking items that are extracted from structured and information engineering model and object-oriented component model. As a result, the checking item of web contents and design is inadequate. This paper aims to extract audit framework in order to strengthen the audit of web contents and design during the development of the web based information system and to suggest checking items based on audit framework. For this, the web development process and web site evaluation model were studied, compared, and analyzed with the current information system development audit. From a result of the survey, it was found that the adequacy of the suggested audit framework and audit checking items is above the average value. It is believed that the suggested audit framework is helpful for the audit of web based information system.

• 디지털융복합연구
• /
• 제6권1호
• /
• pp.35-41
• /
• 2008

The digital economic environment of next generation, which digital high-technology industry appears to be the economic center of the high degree of industry structure, is expected to be developed as the existing traditional industry is merged with high tech digital one. The developing system of contents policy for digital industry means the policy and vision, and strategic structure which get the mechanism of contents industry structure to work. The promotion organization of digital contents policy is requested to secure the framework of digital contents industry based on cluster, the infra framework of digital infra culture, the infra framework of industry-academic cooperation, and the overall digital contents based on motive policy for the vitality of the youth. The application of digital contents policy may lead to establish the framework of the growth for the every unit of industry with the cluster oriented system.

• 해양환경안전학회지
• /
• 제21권3호
• /
• pp.283-289
• /
• 2015

This paper provides a study on the application and proposals of safety culture, new public management and social amplification of risk framework via ship accidents in Korea. This document analyzes what are the concept of safety culture, new public management as well as social amplification and risk framework and describes how 3 issues act, harmonize, interrelate through M/V Sewol accident. Korean government is needed to apply social amplification of risk framework to the in order to promote the safety culture in the maritime administration. Hence, this paper proposes safety framework in order to prevent and resolve future unexpected accident especially for maritime field.

• 과학교육연구지
• /
• 제43권3호
• /
• pp.363-381
• /
• 2019

본 연구는 이공계열 대학생들의 기술의 본성(NOT)에 대한 인식 조사를 위하여 기술의 본성(NOT)에 대한 문헌 연구와 선행 연구를 분석하여 통합적이고 포괄적인 기술의 본성(NOT)의 개념 틀을 제안하였다. 또한 이를 바탕으로 수도권 소재 종합대학 이공계열 대학생 약 517명을 대상으로 기술의 본성(NOT)에 대한 인식을 분석하였다. 연구 결과는 다음과 같았다. 첫째, 기술의 본성(NOT)에 대한 문헌 연구를 통해서 제시된 통합적인 NOT개념 틀은 총 5가지 영역으로 1. 인공물로서의 기술(Technology as Artifacts), 2. 지식으로서의 기술(Technology as Knowledge), 3. 실행으로서의 기술 (Technology as Practice), 4. 역사로서의 기술(Technology as History), 그리고 5. 사회의 한 부분으로서의 기술(Technology as a part of Society)이다. 둘째, 본 연구에서 제안한 5개 영역의 NOT 개념 틀을 기준으로 분석한 이공계열 대학생들의 인식조사 결과, 학생들은 기술에 대하여 3. 실행으로서의 기술(26.4%), 5. 사회의 한 부분으로서의 기술(25.8%), 그리고 2. 지식으로서의 기술(24.3%)의 3가지 영역을 중요한 기술의 본성 개념으로 인식하고 있는 것으로 나타났다. 셋째, 학생들이 제시한 기술의 본성 개념의 세부 내용을 분석한 결과 우리나라 이공계 대학생들은 복잡하고 추상적인 기술의 본성(NOT)에 대하여 비교적 구체적이고 다양한 인식을 하고 있다는 것을 확인할 수 있었다. 특히 이공계열 대학생들은 기술을 삶의 편리를 위한 목적으로 기술적 지식을 활용 및 적용하는 능력이면서, 그를 통하여 산출된 결과물이라는 인식하는 것으로 나타났다.