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JSP를 이용한 웹 기반 교수학습 시스템의 설계 및 구현
정종대,남재열,최재각,Jung, Jong-Dae,Nam, Jae-Yeal,Choi, Jae-Gak 한국정보교육학회 2003 정보교육학회논문지 Vol.7 No.3
Web based instruction (WBI) has been widely used thesedays because the web has various advantages for instruction. However, most of current WBI systems do not support various requirements from students. It is because of the lack of research for structural instruction method. This paper presents a new method of WBI and designs an instruction model to support various requirements from students by implementing dynamic WBI system using JSP to solve current WBI problems. The developed WBI system uses multimedia based instructions. The implemented system focused on the practical instruction by providing the functions of listening, homework, and test on web site. For the similar effects as in the classroom, it supports functions of electronic white board and multimedia data which is consisted of high-quality sound and video data with high degree of compression. Furthermore, the system supports that instructors can design a test using three kinds of basic forms, a multiple-choice test, brief-answer test, essay test, and evaluate the tests easily. It also supports easy management for homework, lecture registration, and many school affairs.
미국 래드번 주거단지에 활용된 사적규약의 특징 및 시사점 연구
정종대(Jung Jong-Dae),김지엽(Kim Jee-Yeop),배웅규(Bae Woong-Kyu) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.3
This study has explored as to how the Radburn, which is a symbol of the early new town development in the US, has been keeping its original identity and character in terms of physical and social community. To do this, this study analyzed private land use controls including covenant and easement adopted in the residential development; the ideas and historical background of the Radburn's planning and design; and the current community's characters. In addition, the impacts of the U.S.'s new town development were examined. Ultimately, this study has reached the conclusion that it is strong private controls based on the U.S.'s legal system that has enabled the Radburn to keep its reputation as one of the best residential developments. In particular, private controls in the U.S.'s legal system allows community to have its autonomy to regulate its territory, thereby preserving the physical and social characters as they had been intended. Moreover, individual property also is regulated to achieve common goals under such private land use controls, which fill the gap where government's authority cannot reach. This legal technique may be applied in Korea for the Building Agreement, guidelines of environmentally friendly residential development, and urban design methodologies as in the District Unit Planning.
정종대 ( Jong Dae Jung ) 한국실천공학교육학회 2011 실천공학교육논문지 Vol.3 No.1
현대의 많은 제어 시스템과 임베디드시스템에는 그 두뇌에 해당하는 마이크로프로세서 또는 마이크로컨트롤러가 내장되어 있다. 따라서 공학계열 학생들에게 있어서 마이크로프로세서에 대한 이해가 매우 중요하게 되었으며 그런 이유로 대부분의 공학계열 학부(과)에서 관련 교과목이 개설되어 운영되고 있다. 마이크로프로세서 교과목은 그 특성상 이론과 실습이 병행되어야 하는데 이 교과목 운영의 설계에서 가장 중요한 요인은 어떤 프로세서를 대상으로 할 것인지, 이론과 실습의 비율은 어떻게 할 것인지, 실습의 내용은 어떻게 할 것인지와 달성도에 대한 평가는 어떻게 할 것인지를 정하는 것이다. 실습이 수반되는 교과목에 사용될 수 있는 적절한 평가기법은 상당히 어려운 난제이지만 열심히 자신의 노력으로 과제를 수행하는 학생들이 그렇지 못한 학생들에 의해 제대로 평가되지 못해 학습의욕이 떨어지는 것을 방지하고 모든 수강생들에게 진정한 실력 배양의 기회를 부여하기 위해서 공정한 평가기법의 개발은 매우 중요하다. 본 연구에서는 본 저자의 오랜 경험을 바탕으로 마이크로프로세서 교과목의 강의/실습 내용과 적절한 평가 기법에 대해 정리하여 소개하였다. These days, almost all of the embedded systems have microprocessors or micro-controllers in them as their brains. So microprocessor related subjects become very important and most engineering departments have those kinds of subjects in their curriculums with practice hours. However, in most universities in Korea, the number of students in a class is more than 40 and only one teaching assistant is assigned to the class. So it is very hard job to find out an appropriate method to evaluate the students` achievements in their practice hours fairly. In this study, the author introduces some suggestions for the evaluation of the students` achievements in microprocessor practice courses. In addition to it, the author also introduces some guidelines for contents of microprocessor related subjects.
서울시 특별계획구역 용적률 인센티브제도에 의한 편익비용비 영향요인에 관한 연구
정혜진(Jung Hye-Jin),정종대(Jung Jong-Dae) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.6
The objective of this research is to examine influencing factors of B/C Ratio by incentive zoning in special planning districts in Seoul. Twenty-two factors regarding B/C ratio are defined, and incentive endowments in 25 special districts were surveyed. And correlation analysis, covariance analysis and regression analysis were conducted to examine the relationship between variances and B/C ratio. The results of this study showed that, firstly, current incentive policy has produced an quantitative imbalance, because it is in control of incentive zoning according to rate of site area. Secondly, as a result of the regression analysis of the 13 factors to influence the B/C ratio, 5 factors such as 'sum of floor area', 'possession rate of residential usage', 'benefit by enlargement floor area', 'cost of public facilities' and 'construction cost for increasing area' are chosen to influence the B/C ratio. Especially, 'sum of floor area' is selected to be a most influenced factor. In addition, 'site area' is selected to be an fundamental element related with floor area, land donation, cost of public facilities. Therefore, incentive policies are required to change a compensation for property loss into a expansion of social benefits.
박희문(Hee-Mun Park),정종대(Jong-Dae Jung) 한국전기전자학회 2019 전기전자학회논문지 Vol.23 No.4
본 논문은 모바일 로봇과 자동제어 시스템에 적용될 수 있는 음원 위치 추적 시스템(Sound Source Localization, SSL)을 보여준다. 대부분 SSL의 기법은 음원 도달 시간차(Interaural Time Difference, ITD)와 음압 레벨의 차이(Interaural Level Difference, ILD)를 구하고, 마이크로폰 배열의 기하학적 원리를 이용하여 위치를 찾게 된다. 하지만 본 논문에서는 음원의 수평 각도를 구하기 위해 깊은 인공 신경망을 기반으로 한 다른 접근법은 제안한다. 인간의 귀를 모방한 로봇의 양쪽 마이크로폰에서 음원의 신호를 채집하여 연구에 사용했다. Network를 학습시키기 위해 양쪽 마이크로폰에서 얻어진 음원의 스펙트럼 분포 차이를 이용하였다. 각 10도 마다 채집한 데이터로 네트워크를 학습시켰고 임의의 각도에서 얻어진 데이터로 결과를 확인했다. 실험 결과 제안한 SSL의 접근 방식은 상당히 가능성이 있는 결과를 보여주었다. In this paper, we describe a sound source localization(SSL) system which can be applied to mobile robot and automatic control systems. Usually the SSL method finds the Interaural Time Difference, the Interaural Level Difference, and uses the geometrical principle of microphone array. But here we proposed another approach based on the deep neural network to obtain the horizontal directional angle(azimuth) of the sound source. We pick up the sound source signals from the two microphones attached symmetrically on both sides of the robot to imitate the human ears. Here, we use difference of spectral distributions of sounds obtained from two microphones to train the network. We train the network with the data obtained at the multiples of 10 degrees and test with several data obtained at the random degrees. The result shows quite promising validity of our approach.