집합형 전력용변환기와 종합제어시스템의 설계 및 구현

장영현 배화여자대학 1999 培花論叢 Vol.18 No.-

In this paper, I present the design and implementation of a total control system and multi-transducers. The total control system and multi-transducers that have Intel 80C196kc-20 microprocessor, RS-485 and 232, membrane keypad for function control, LCD, LED, 7-segment displayer, event printer, analog I/O, digital I/O, pluse I/O, ROM and RAM control and monitor the device of factory field. A system software consists of CPU initiation routine, analog value display routine, binary and hex to decimal conversion routine, measuring data display routine, key input process and execute routine, external interrupt service routine, backup-data process, alarm processing, input scanning and communication interrupt handling routine. Each module operated in order to control and monitor efficently input/output devices, several environments and tasks. Interrupt service routines process multifariouse events which occur by chance using interrupt vector table. For demonstration the total control system and multi-transducers, I have conducted a simulation and practice in commercial site and lab with CPM, CAM and MON. The most important thing in the automatic system applied in real-time application field is to reduce the response time by using efficient method. The developed system can be characterized with the two features, accuracy and efficency. As a result, we can reduce the execution and response time by lessening the input scan step from various field devices and improve accuracy by using microprocessor and software processing distinct from analog processing. The usefulness of the proposed system was proved through experiments with various factory field and laboratory and gave its user reliablity with high-accuracy, long term stability and measurement of true power

국내 지역별 콩 발효 가공식품에 함유된 티아민, 리보플라빈 및 니아신 함량평가

장영현,전진수,이상훈,최용민,정명근 한국식품영양과학회 2022 한국식품영양과학회지 Vol.51 No.7

콩은 한국인의 식단에서 중요한 역할을 하며 다양한 요리에 이용되고 있으나, 콩을 이용한 식품 중 발효식품인 된장, 간장 및 고추장의 수용성 비타민 B의 정보는 제한적인 실정이다. 따라서 본 연구는 국내 지역별 전통 콩 발효식품에 함유된 티아민, 리보플라빈 및 니아신의 함량을 HPLC를 이용하여 정량 분석하였다. 분석법을 검증하기 위하여 직선성, 분석감도, 선택성, 재현성 및 정확성을 검토했으며, 주성분 분석과 box-whisker plot을 이용하여 전통 콩 발효식품의 함량 특성을 평가하였다. 그 결과 된장, 간장 및 고추장에 함유된 티아민의 함량은 각각 1.837~7.438, 0.124~3.836 및 2.797~5.785 mg/kg이었다. 리보플라빈의 경우 된장은 1.439~2.118 mg/kg, 간장은 0.864~1.400 mg/kg, 고추장은 2.300~3.314 mg/kg의 범위였으며, 니아신은 된장이 3.929~11.479 mg/kg, 간장은 5.350~12.360 mg/kg, 고추장이 16.088~31.259 mg/kg의 범위를 나타내었다. 본 연구의 결과를 바탕으로 주성분 분석을 수행했을 때 전통 콩 발효식품의 종류에 따라 명확한 그룹으로 구분이 되는 것을 확인했으며, box-whisker plot 결과 된장의 경우 간장 및 고추장과 비교하여 티아민의 지역 간 함량 변이가 큰 것을 확인하였다. 향후 본 연구의 결과는 국가표준식품성분표 제10개정판 출간의 기초자료로 사용될 것이다.

실용교육 기술대학원의 세계표준 전문대학이 만든다

장영현 한국컴퓨터정보학회 2002 한국컴퓨터정보학회지 Vol.9 No.1

전문대학 산학협력 브랜드 [PROFESSOR-HUB]

장영현 한국컴퓨터정보학회 2003 한국컴퓨터정보학회지 Vol.11 No.1

CAAMS(Chemical Agent Automatic Management System) 개발에 관한 연구

장영현,왕창종,장광훈,윤경섭,이세훈 한국정보과학회 1986 한국정보과학회 학술발표논문집 Vol.13 No.2(1)

Chemical Agent Automatic Management System은 현재 상태의 화학분야에서 개별적이고 수동적인 관리 업무를 종합적, 체계적, 능동적인 관리 형태로 변환시키는 이론과 방법 절차를 소프트웨어화하여 해당분야 업무를 효율성, 안정성, 전문성을 정립시키기 위한 시스템이다. 현재 완전한 독립 상태 업무 3개 유형을 Sampling Model 로 선택하여 CAAMS에 실제 적용시켜 보고, 이의 기능을 평가 분석해 본다.

대학생 저자 전공서적 출판과 학습효과에 대한 연구

장영현,Chang, Younghyun 국제문화기술진흥원 2017 The Journal of the Convergence on Culture Technolo Vol.3 No.3

초중고대학생이 주체가 되는 책쓰기, 서적출판의 경우는 극소수 학생들의 범주에서 구현되어 왔다. 최소한의 경우에 국한된다 하더라도 발생하는 효과들을 세밀하게 분석해 보면 교육 및 학습적 효과가 무한하며 다양성에 근거한 최대한의 긍정적 효과를 창출하고 지속가능한 능력배양의 연장선으로 확장할 수 있는 교육 및 학습의 효과로 나타나고 있다. 본 논문에서는 평범한 1,2학년 IT전공 대학생 14명을 대상으로 2차에 걸쳐 기초 전공서적 과 중급 전공서적에 대한 출판을 시도하였다. 대학생 저자 전공서적 출판 성과는 교육과 학습의 기본적 만족도 외에도 창업기반 비즈니스의 확충, 만족도 상향에 따른 전공 정체성의 확충과 자부심, 다양한 후발효과의 최대화, 지속가능한 발전성향 확보 등 다양한 분야에서의 효과가 탁월하였다. 추후 전공분야에서 중위권 학생들과 하위권 학생들에게도 동일한 효과를 도출할 수 있는 연구를 진행하여 학습효과의 범용적 적용을 유도할 방안을 제시할 예정이다. In the case of book writing and publishing written by students, it has been implemented in the category of very few students. Even if it is limited to the minimum case, the detailed analysis of the effects will show that the education and learning effects are infinite, the maximum positive effect based on diversity and the effect of education and learning that can be extended to the continuation of sustainable capacity building. In this paper, I attempted to publish basic and intermediate major books on two occasions for first and second grade ordinary students majoring in IT. In addition to the basic satisfaction of education and learning, the book publishing performance of college student authors is excellent in various fields such as expansion of business based business, enlargement of major identity due to upward satisfaction, maximization of various late effects, securing sustainable development tendency. In the future, we plan to suggest ways to induce the general application of learning effect by conducting research that can achieve the same effect for middle and low level students.

A Study on the Development and Operation of Integrated Assessment System for National Competency Standard Professional Basic

장영현 한국인터넷방송통신학회 2018 Journal of Advanced Smart Convergence Vol.7 No.4

This paper develops and builds an Integrated Assessment System for National Competency Standard Professional Basic. The integrated evaluation system for basic job competency in the National Competency Standards is developed to conduct examination by means of computers, smartphones and tablet PCs. The system can be used for the basic job competency test, examination for online cyber universities, job competency examination for enterprises, and the listening, reading, and speaking test in the foreign language proficiency examination and is even better in terms of facility investment and saved operating costs as well as efficient use of spaces in comparison with conventional evaluation schemes. Even greater synergy effects can be achieved by providing support for the integrated evaluation system for basic job competency in connection with the NCS qualification system. The evaluation system has been tested and practiced at a specialized high school and can be applied to the NCS education evaluation of the college and four-year college and to the selection examination of new employees of the company.

Design and Implementation of a Low-Code/No-Code System

장영현 한국인터넷방송통신학회 2019 Journal of Advanced Smart Convergence Vol.8 No.4

This paper is about environment-based low-code and no-code execution platform and execution method that combines hybrid and native apps. In detail, this paper describes the Low-Code/No-Code execution structure that combines the advantages of hybrid and native apps. It supports the iPhone and Android phones simultaneously, supports various templates, and avoids developer-oriented development methods based on the production process of coding-free apps and the produced apps play the role of Java virtual machine (VM). The Low-Code /No-Code (LCNC) development platform is a visual integrated development environment that allows non-technical developers to drag and drop application components to develop mobile or web applications. It provides the functions to manage dependencies that are packaged into small modules such as widgets and dynamically loads when needed, to apply model-view-controller (MVC) pattern, and to handle document object model (DOM). In the Low-Code/No-Code system, the widget calls the AppOS API provided by the UCMS platform to deliver the necessary requests to AppOS. The AppOS API provides authentication/authorization, online to offline (O2O), commerce, messaging, social publishing, and vision. It includes providing the functionality of vision.

A Study on the Design of Low-Code and No Code Platform for Mobile Application Development

장영현,고창배 한국인터넷방송통신학회 2017 Journal of Advanced Smart Convergence Vol.6 No.4

Workers' demands for new applications, especially mobile applications, are increasing. Many industry analysts, researchers and corporate executives say the demand for mobile applications is becoming increasingly difficult to follow in the IT department. Gartner predicts that by 2021, the demand for mobile application development within the enterprise will increase about five times faster than IT can deliver applications. The purpose of this paper is to provide an environment where non-developers who are in charge of business development can develop apps and webs for their work. The basic concept of a new innovative App development tool, Smart Maker Authoring Tool is to develop Apps on the level using easy-to-learn Word or Excel in a computer. The main feature is that the app is developed by a non-developer worker. The coding technology is perfectly optimized to the structure and operation mechanism of the IT Infra such as hardware devices and operating system, which are the targets for implementing a desired function. Rather, it shows excellent software productivity. The most important feature of future business development is that it is developed by a non-developer worker. In this paper, we propose a no-code and low-code platform for non - developers to develop their business. In the future, we will link the IoT based Arduino system and artificial intelligent interpretation system

GENESIS를 이용한 산업응용 제어시스템 개발 및 구현

張榮賢 배화여자대학 1996 培花論叢 Vol.15 No.-

In this paper, I present the design and implementation of a industrial application control system using GENESIS. The industrial application control systems that have a controller by Intel 80C31 microprocessor, CCD camera, microscope of 40, 100, 200 magnifications, keypad for cursor control and mono 12" monitor control and modify the gravure picture on a copperplate print. A system software consists of initialize routine, Hangule display routine, cursor line display routine, binary to decimal conversion routine, measuring length display routine, video ram data conversion routine, key input process and execute routine, external interrupt service routine, Hangule font database. Each module operated in order to control and monitor efficently input/output devices, environments and tasks. Interrupt service routines process multifariouse events which occur by chance using interrupt vector table. For demonstration the industrial application control system, we have conducted a simulation and practice with commercial GENESIS cpu board, duplication board that processes a measuring data and a microscope image simultaneously, high performance microscope, CCD camera connected with microscope, keypad for cursor control and mono 12" monitor for visual display