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장정욱 인천작가회의(작가들) 2019 작가들 Vol.- No.71

부산·경남 지역의 절취사면 보강 사례 연구

장정욱,박춘식,김종환 國立 昌原大學校 産業技術硏究所 2002 産技硏論文集 Vol.16 No.-

This study examined cut slope reinforcement cases in the Pusan-Kyoungnam district, which includes 3 Pusan, 2 East Kyoungnam, 6 Middle Kyoungnam and 3 West Kyoungnam cases. It also analyzed the causes of the collapse and hazards, and the reinforcement method that had been used. The conclusions of the study are presented in the following. (1) The major causes of collapse and hazards in the cut slope are in the following. (ⅰ) The rise of ground water due to a local downpour and the ground seepage of water. (ⅱ) Existence of a soft ground layer. (ⅲ) A decision of slope inclination by an empirical method. (2) It turned out that the main reinforcement methods used for each cut slope were the remethod of gentle slope inclination and the retaining wall method. The auxiliary methods were drainage method for the prevention of water seepage and protection method of surface for the prevention of surface erosion. These methods were applied to almost all the slopes.

부산점토의 토목지질학적 특성에 관한 연구

장정욱,박춘식,박진규 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

This study examined geological characteristics of the clay in the area around Kaduck-do, Kangseo-gu, Pusan, to figure out the characteristic fundamentals of the clay. The results are shown in the following. (1) The physical and chemical characteristics are summarized in he following table. There were no meaningful changes according to the depth degree. ◁ 원문 표 참조 ▷ (2) The geological characteristics 1) Sedimetological and geochemical characteristics showed that the clay layer was formed under oceanic circumstances. 2) The mineralogy mainly includes clay materials such as quartz, feldspar, illite, chlorite, and kaolinite. 3) The results of radiocarbon dating by AMS showed 3,692±50 yr.B.P for the upper samples and 16,650±200 yr.B.P. for the lower samples.

연직배수재의 타설심도에 따른 압밀특성

장정욱,박춘식,손대산 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

This study analyzed characteristics of soft ground consolidation according to depths of vertical drain. As the result, when the depth ratio of vertical drains (L/D) were 0.5, 0.7, and 1.0, consolidation characteristics were similar up to 70% in consolidation degree under one-dimensional drain condition. However, above this degree, consolidation speed became slower as L/D became smaller. Two-dimensional drain condition also showed a similar tendency, but when L/D was 1.0, the consolidation speed was relatively higher.

군 교육의 학습 능력 향상을 위한 M-러닝 콘텐츠 개발

장정욱,인치호 한국인터넷방송통신학회 2012 한국인터넷방송통신학회 논문지 Vol.12 No.6

본 논문은 군 교육의 학습 능력 향상을 위하여 스마트폰을 이용한 학습 어플리케이션인 M-러닝 스마트교관 콘텐츠를 설계 및 구현하였다. 학습자 스스로 시간과 공간의 제약에서 벗어나 빠르고 정확하게 학습할 수 있다는 것을 목표로 하여, 각 과목 별 부분학습과, 반복학습, 전체학습을 쉽고 빠르게 선택하여 효율적으로 학습할 수 있도록 m-Bizmaker를 이용한 어플리케이션을 설계하였다. 실험은 군부대 2개 중대원을 대상으로 응급처치과목에 대한 평가를 실시하여, 기존의 전통적 집체 교육 방법을 비교 집단으로, 제안한 콘텐츠를 적용한 교육 방법을 실험 집단으로 선정하여 실험하였다. 본 논문에서 제안한 스마트교관 학습 어플리케이션을 이용한 학습효과의 검증을 위하여 비교대상, 실험대상 각 49명을 대상으로 비교하였으며, 그 결과 p<.005 수준에서 두 집단 간에 유의미한 차이가 있음을 확인하였다. 따라서 본 논문에서 제안한 스마트교관 어플리케이션을 활용한 수업이 사후 성취도 향상에 기여함을 입증하였다. In this paper, we proposed a development of M-learning smart-trainer content for improving the learning ability of military education. Learners of time and space constraints beyond quickly and accurately can learn with the goal, each subject by partial learning, and repetition, the whole learning quickly and easily by selecting efficiently to help you learn a m-Bizmaker with applications was designed. Experiment targets the military company of two, first aid courses were conducted for the evaluation. Traditional collective comparison group teaching methods, the proposed content, teaching methods applied in the experimental group were selected. The proposed learning applications using smart instructor for verification of learning, with which to compare, test subjects were compared with each of 49 subjects, the results p <.005 level, there was difference among the two groups. Therefore, the proposed application using a smart trainer after class proved that contribute to improving achievement.

새로운 멀티프로세서 디자인을 위한 상위수준합성 시스템의 회로 복잡도 최적화 ILP 알고리즘

장정욱,인치호 한국인터넷방송통신학회 2016 한국인터넷방송통신학회 논문지 Vol.16 No.3

본 논문에서는 새로운 멀티프로세서 디자인을 위한 상위 수준 합성 시스템의 회로 복잡도 최적화 ILP 알고리즘을 제안하였다. 상위수준 합성에서 가장 중요한 연산자의 특성과 데이터패스의 구조를 분석하고, 멀티사이클 연산의 스케줄링 시 가상연산자 개념을 도입함으로써, 멀티사이클 연산을 구현하는 연산자의 유형에 관계없이 공통으로 적용시킬 수 있는 ILP 알고리즘을 이용하여 증명하였다. 기술된 알고리즘의 스케줄링 성능을 평가하기 위하여, 표준벤치마크 모델인 5차 디지털 웨이브필터에 대한 스케줄링을 행한 결과, 기존의 데이터패스 스케줄링 결과와 정확하게 일치함으로서, 제시된 모든 ILP 수식이 정확하게 기술되었음을 알 수 있었다. In this paper, we have proposed a circuit complexity optimization ILP algorithm of high-level synthesis system for new multiprocessor design. We have analyzed to the operator characteristics and structure of datapath in the most important high-level synthesis. We also introduced the concept of virtual operator for the scheduling of multi-cycle operations. Thus, we demonstrated the complexity to implement a multi-cycle operation of the operator, regardless of the type of operation that can be applied for commonly use in the ILP algorithm. We have achieved is that standard benchmark model for the scheduling of the 5th digital wave filter, it was exactly the same due to the existing datapath scheduling results.

강제 원통 케이슨 구조물의 2차원 모델실험

장정욱 청주대학교 산업과학연구소 2000 産業科學硏究 Vol.18 No.1

In this study, two-dimensional model tests were performed on the steel circular caisson which is designed as a new gravity type structure. The material of fill used in this study is two aluminium rods with different sections. The behaviors of fill were recorded by photo techniques and failure mechanism created in fill has been simulated two-dimensionally. As a result, the shape of boundary face created in the fill was examined and the correlation between the location of boundary face and the loading height was also investigated.

협력형 개체 수 동역학에 대한 1900년대 연구

장정욱,심성아 한국수학사학회 2020 Journal for history of mathematics Vol.33 No.3

Cooperative behavior may seem contrary to the notion of natural selection and adaptation, but is widely observed in nature, from the genetic level to the organism. The origin and persistence of cooperative behavior has long been a mystery to scientists studying evolution and ecology. One of the important research topics in the field of evolutionary ecology and behavioral ecology is to find out why cooperation is maintained over time. In this paper we take a historical overview of mathematical models representing cooperative relationships from the perspective of mathematical biology, which studies population dynamics between interacting biological groups, and analyze the mathematical characteristics and meanings of these cooperative models. 협력적 행동은 자연선택과 적응이라는 개념에 반하는 것으로 보이기도 하지만, 유전자 수준에서 유기체에 이르기까지 자연에서 광범위하게 관찰된다. 협력적 행동의 유래와 지속성은 오랜 동안 진화와 생태를 연구하는 과학자들에게 수수께끼로 여겨져 왔다. 시간이 흘러도 협력이 유지되는 이유를 찾고자 하는 것이 진화 생태학과 행동 생태학 분야의 중요한 연구 주제 중에 하나이다. 여기에서는 상호작용하는 생물 집단 사이의 개체 수 동역학을 연구하는 수리생물학의 관점에서 협력 관계를 나타내는 수학적 모델에 대하여 역사적 개관을 살펴보고, 이러한 협력 관계 모델의 수학적 특성과 의미를 분석한다.

鋼製圓筒케이슨의 수평거동에 관한이론적 해석

장정욱 청주대학교 산업과학연구소 1997 産業科學硏究 Vol.15 No.-

In this paper, a theoretical analysis was performed on the lateral behavior of steel circular caisson which is designed as a new gravity type structure. The analysis considers an elastic equilibrium of force acting on a horizontal slice cut from the over-all structure to introduce the basic equation on the deflection of caisson. Then these equations were solved for the three cases of simple boundary conditions.

말뚝 시공 허용오차범위에 관한 연구

장정욱,박춘식,이정환 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

This thesis studied an allowable error range of construction distance between piles, Our experiment has altered the distance between piles in various ways to observe characteristics of the piles bearing capacity according to the changes. It was observed that the range of changes in the piles bearing capacity was insignificant when the distance between piles were great, where as the range became greater inversely to the distance between piles. The pulling resistance exceeded the allowable range when the distance between piles was less than 2.0D. It turned out that the allowable error range of construction was 1.0D for the field of our interest.