항공사진을 이용한 지적측량

조진구 한국지적학회 1982 韓國地籍學會報 Vol.4 No.-

일본의 아시아외교, 영토 그리고 독도문제

조진구 통일연구원 2005 統一 政策 硏究 Vol.14 No.1

This article analyzes Japan’s Asian foreign policies after World War Ⅱ and the Dokdo Problem between the Republic of Korea and Japan.Many countries including the South Korea in the region often criticize Japan's failure to accept responsibility for its imperial past. Increasingly anti-Japanese protests in China was an expression of discontents with a disputed junior high school history textbooks recently approved by the Japanese government, and Prime Minister Junichiro Koizumi’s visit to the Yasukuni Shrine. This is a symbol of historical perception gaps on the past between Japan and its Asian neighbors’s.This year marks the 40th anniversary of the normalization of relations between Korea and Japan. Therefore, after enacting “Takeshima Day” ordinance by Shimane Prefecture, South Korean people marched to the Japanese Embassy in Seoul to protest, and at the same time Korean government announced a set of new principles to deal with Japan. As already examined in this research, Korea's sovereignty over the Dokdo is complete, and it is not an object of diplomatic negotiation. President Roh made it clearly in his letter to the people, it is necessary to respond to Japan’s illegal claims coolly, and to prepare plans for persuading international society minutely.

탄성지반상에 놓인 철근콘크리트 축대칭 쉘의 정적 및 동적 해석 (III) -비선형 정적거동을 중심으로-

조진구 한국농공학회 1997 韓國農工學會誌 : 전원과 자원 Vol.39 No.3

In all inelastic deformations time rate effects are always present to some degree. Whether or not their exclusion has a significant influence on the prediction of the material behaviour depends upon several factors. In the study of structural components under static loading conditions at normal temperature it is accepted that time rate effects are generally not important. However metals, especially under high temperatures, exhibit simultaneously the phenomena of creep and viscoplasticity. In this study, elastoplastic and elasto-viscoplastic models include nonlinear geometrical effects were developed and several numerical examples are also included to verify the computer programming work developed here in this work. Comparisons of the calculated results, for the elasto-viscoplastic analysis of an internally pressurised thick cylinder under plane strain condition, have shown that the model yields excellent results. The results obtained from the numerical examples for an elasto-viscoplastic analysis of the Nuclear Reinforced Concrete Containment Structure(NRCCS) subjected to an incrementally applied internal pressure were summarized as follows : 1. The steady state hoop stress distribution along the shell layer of dome and dome wall junction part of NRCCS were linearly behave and the stress in interior surfaces was larger than that in exterior. 2.However in the upper part of the wall of NRCCS the steady state hoop stress in creased linearly from its inner to outer surfaces, being the exact reverse to the previous case of dome/dome-wall junction part. 3.At the lower part of wall of NRCCS, the linear change of steady state hoop stress along its wall layer began to disturb above a certain level of load increase.

탄성지반상에 놓인 철근 콘크리트 축대칭 쉘의 정적 및 동적 해석(IV) -축대칭 쉘의 동적 응답에 대한 철근의 영향을 중심으로-

조진구 한국농공학회 1997 韓國農工學會誌 : 전원과 자원 Vol.39 No.4

Dynamic loading of structures often causes excursions of stresses well into the inelastic range, and the influence of the geometric changes on the dynamic response is also significant in many cases. Therefore, both material and geometric nonlinearity effects should be considered in case that a dynamic load acts on the structure. A structure in a nuclear power plant is a structure of importance which puts emphasis on safety. A nuclear container is a pressure vessel subject to internal pressure and this structure is constructed by a reinforced concrete or a pre-stressed concrete. In this study, the material nonlinearity effect on the dynamic response is formulated by the elasto-viscoplastic model highly corresponding to the real behavior of the material. Also, the geometrically nonlinear behavior is taken into account using a total Lagrangian coordinate system, and the equilibrium equation of motion is numerically solved by a central difference scheme. The constitutive relation of concrete is modeled according to a Drucker-Prager yield criterion in compression. The reinforcing bars are modeled by a smeared layer at the location of reinforcements, and the steel layer model under Von Mises yield criteria is adopted to represent an elastic-plastic behavior. To investigate the dynamic response of a nuclear reinforced concrete containment structure, the steel-ratios of 0, 3, 5 and 10 percent, are considered. The results obtained from the analysis of an example were summarized as follows 1. As the steel-ratio increases, the amplitude and the period of the vertical displacements in apex of dome decreased. The Dynamic Magnification Factor(DMF) was some larger than that of the structure without steel. However, the regular trend was not found in the values of DMF. 2. The dynamic response of the vertical displacement and the radial displacement in the dome-wall junction were shown that the period of displacement in initial step decreased with the steel-ratio increases. Especially, the effect of the steel on the dynamic response of radial displacement disapeared almost. The values of DMF were 1.94, 2.5, 2.62 and 2.66, and the values increased with the steel-ratio. 3. The characteristics of the dynamic response of radial displacement in the mid-wall were similar to that of dome-wall junction. The values of DMF were 1.91, 2.11, 2.13 and 2.18, and the values increased with the steel-ratio. 4. The amplitude and the period of the hoop-stresses in the dome, the dome-wall junction, and the mid-wall were shown the decreased trend with the steel-ratio. The values of DMF were some larger than those of the structure without steel. However, the regular trend was not found in the values of DMF.

포스터 발표 - 생물공학분과 / 펄프 , 제지 , 피혁분과 / 유지 , 계면활성제분과 / 접착제 , 도료 잉크분과 / 정밀화학분과 : Combinatorial library 를 위한 지지체로서 구형인 PS - co - PEG 공중합체의 합성

조진구,이윤식 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1990 No.3

지반과 구조물 사이의 상호작용을 고려한 농업용 사이로의 해석에 관한 연구(IV) -제 4 보 관행설계법과의 비교

조진구,조현영 한국농공학회 1988 한국농공학회논문집 Vol.30 No.2

This study was carried out to investigate the applicability of the conventional design method for ground supported circular cylindrical shell structures. For this purpose, the ensiled farm silo was adopted as a model structures. Herein, the conventional design method was based on the assumption that such structures are clamped at the bottom edges or the ground pressure is independent of the deflection at the surface. In the present paper, the applicability of above assumption was checked out by comparison with an exact method considering soil-structure interaction. Some results of numerical calculation show us ; When the ground is very hard, for example Winkler's constant k is larger than 100 kg / cm$^2$ / cm, or the bottom plate of structures has a infinitely stiffness, for example the bottom plate thickness is larger than 100 cm, the sectional forces, obtained from the conventional method at any wall of structures resting on an elastic foundation, can used for design purpose. Therefore, if the above condition is satisfied then the conventional assumptions can be justified for the design purpose. In this case, the assumption that such structures are fixed at the lower edges was more realistic than the assumption that the reaction pressure acting on structures is uniformly disributed since the accuracy of results of the analysis by the former assumption was higher than that obtained from the latter assumption. But the sectional forces in the bottom plate resting on ground directly could not be evaluate correctly by the conventional method.

특집 - 탈석유화시대를 위한 재생 및 지속사용 가능 자원 유래 화학소재

조진구,Jo, Jin-Gu (사)한국포장협회 2011 包裝界 Vol.219 No.-

동아시아 철도네트워크의 가능성

조진구,서보혁,안병민,박종철,이철우,이웅현,이수석,이군호 교양사회 2006 민족연구 Vol.0 No.28

일본회의의 역사인식과 교육관: 무라야마 담화 정신에 대한 도전

조진구 국회입법조사처 2018 입법과 정책 Vol.10 No.2

The issues of historical perception is a continuous source of contention between Japan and its Asian neighbors. On the 50th anniversary of the war’s end, in August 15 1995, Prime Minister Tomiichi Murayama released the so-called Murayama Statement, which was based on a Cabinet decision, expressing “feelings of deep remorse” and a “heartfelt apology” for Japan’s “colonial rule and aggression. People throughout Asia welcomed Prime Minister Murayama’s apology, but the conservatives or the ring-wing organizations criticize the Murayama Statement as a self-destructive historical perspective. Th Nippon Kaigi (Japanese conference), the largest right-wing organization in Japan, is a major supporter of the current Abe administration. In this paper, I will analyze the meaning and spirit of the Murayama Statement, historical perception and educational viewpoint of the Noppon Kaigi, and the correlations between Nippon Kaigi and Abe administration’s educational policy. 역사인식 문제는 일본 외교의 중요한 과제다. 1995년 8월 15일 ‘식민지 지배와 침략’에 대하여 ‘통절한 반성과 마음으로부터의 사죄’를 표명했던 무라야마 담화는 과거 역사에 대한 가장 전향적인 일본 정부의 입장 표명으로 높은 평가를 받아 왔다. 그러나 일본사회 일각에서는 무라야마 담화를 ‘자학사관’이라고 비판하는데, 대표적인 단체가 일본회의다. 일본회의는 과거 일본이 수행했던 전쟁을 침략전쟁이 아니라 아시아 국가들을 해방시키기 위한 정의로운 전쟁이었다고 정당화하면서 무라야마 담화 정신에 도전하고 있다. 이 논문에서는 무라야마 담화의 성립 과정과 그것이 일본과 주변국과의 관계에서 어떤 의미를 가지고 있는가를 살펴본 뒤 아베 정권의 교육정책과 일본회의의 연관성을 고찰함으로써 역사인식과 관련한 일본 국내 상황을 어떻게 인식하고 대응해야 하는지에 대해 약간의 제언을 하고자 한다.

연구논문 - 유기 / 정밀 : 비혼산계 공정에 의한 톨루엔의 니트로화 반응

조진구,이윤식,정종구 한국공업화학회 1995 한국공업화학회 연구논문 초록집 Vol.1990 No.3