본 논문은 북미정상회담의 전개와 한국의 향후과제를 분석하기 위한 것이다. 이를 위해 한반도 평화프로세스와 정상회담의 개념, 김정은-트럼 프 북미정상회담의 전개와 향후전망, 한국의 중재자·촉진자 역할과 향후 과제를 살펴본 후 결론을 도출해 본 것이다. 북미관계는 냉전적 관계 → 비공식적 관계 → 공식적 관계를 거치면서 특히 북한의 핵·미사일 문제 가 장애요인으로 작용하여 더디게 발전해왔다. 북한 김정은 위원장과 미 국의 트럼프 대통령 간의 제1차 정상회담은 2018년 6월 12일 싱가포르 에서 진행되었고 새로운 북미관계 수립과 한반도 평화체제구축, 판문점 선언의 재확인과 한반도의 완전한 비핵화, 전쟁포로 및 전장 실종자 유 해송환 등을 골자로 하는 북미공동성명에 합의했다. 제2차 회담은 2019 년 2월 27~28일 베트남 하노이에서 진행되었지만, 합의문조차 도출하지 못하고 결렬되었다. 이어 2019년 6월 30일 판문점에서 북미정상의 깜짝 회동이 있었다. 그 후 2019년 10월 스웨덴에서 비핵화관련 실무협상이 난항을 겪은 후 북미정상회담은 현재 교착상태에 놓여 있다. 차기 북미 정상회담이 개최되더라도 ‘북한의 비핵화’에 도달하는 데는 실로 적지 않 은 시간이 소요될 전망이다. 한반도 평화프로세스의 진전을 위한 북미협 상 및 관계개선이 추진될 수 있도록 우리 정부는 조정자·촉진자 역할을 포함한 다양한 대비책을 지속적으로 모색·추진해 나가야 할 것이다.
This study examines the optimum shape of a trolley, the driving device of the retractable membrane roof. The closed-type trolley was determined as the model of the study, and a trolley composed of cylindrical-shaped inner and outer holders was selected as the basic model. Based on this model, a cylindrical-based optimal trolley model was proposed. In the basic trolley model, steel was used for the outer holder, and steel, titanium, and aluminum were used for the inner holder. In each case, the most economical shape for the external load of the basic model was newly proposed through the topology optimization process, and the finite element analysis results of the proposed model were compared to define the durability and economics. Here, topology optimization analysis and finite element analysis used the commercial software ANSYS. As a result of optimization, the volume of the outer holder of the trolley was reduced by 58.2% and the volume of the inner holder was reduced by 25.0% compared to the basic model. In the case of stress, a stress increase of 43.2 to 79.2% occurred depending on the material of the inner holder, but it was found to be significantly lower than the yield strength, thereby ensuring safety.
In the study, a shape finding procedure for the tensegrity system model inspired by the movement pattern of animal backbone was presented. The proposed system is allowing a dynamic movement by introducing the concept of “saddle” for the variable tensegrity structure. Mathematical process and an algorithm for movable tensegrity to specified points were established. Several examples have applied with in established shape finding analysis procedure. The final tensegrity structures were determined well to a object shape.
The development of Chinese international jurisprudence over the past 70 years can be divided into three stages: fledging; recovery and development; and flourishing. During the period, Chinese international lawyers have made great contributions to the development of international law through, inter alia, the Five Principles of Peaceful Co-existence, recognition and succession, the peaceful settlement of international disputes, the Belt and Road Initiative, the Shared Future for Mankind, and so forth. However, participation in international legislation and international judicial activities needs to be further improved, because the theoretical ground for China’s foreign policy and diplomatic practice is still insufficient and academic works with global influence are not enough yet. The development of Chinese international law follows such trends: more valuable interpretation and application of international law; the theoretical innovation of international law; and the improvement of China’s discourse power. These are important missions for Chinese international lawyers.
In order to improve the ground-motion prediction equation, which is an important factor in seismic hazard assessment, it is essential to obtain good quality seismic data for a region. The Korean Peninsula has an environment in which it is difficult to obtain strong ground motion data. However, because digital seismic observation networks have become denser since the mid-2000s and moderate earthquake events such as the Odaesan earthquake (Jan. 20, 2007, ML 4.8), the 9.12 Gyeongju earthquake (Sep. 12, 2016, ML 5.8), and the Pohang earthquake (Nov. 15, 2017, ML 5.4) have occurred, some good empirical data on ground motion could have been accumulated. In this study, we tried to build a ground motion database that can be used for the development of the ground motion attenuation equation by collecting seismic data accumulated since the 2000s. The database was constructed in the form of a flat file with RotD50 peak ground acceleration, 5% damped pseudo-spectral acceleration, and meta information related to hypocenter, path, site, and data processing. The seismic data used were the velocity and accelerogram data for events over ML 3.0 observed between 2003 and 2019 by the Korean National Seismic Network administered by the Korea Meteorological Administration. The final flat file contains 10,795 ground motion data items for 141 events. Although this study focuses mainly on organizing earthquake ground-motion waveforms and their data processing, it is thought that the study will contribute to reducing uncertainty in evaluating seismic hazard in the Korean Peninsula if detailed information about epicenters and stations is supplemented in the future.
과학기술 연구에서 기초 자료 확보의 중요성은 양질의 많은 데이터를 필요로 하는 인공지능 기술의 등장과 더불어 더욱 증대되었다. 신약개발로 대표되는 의료 분야의 연구에서는 생명 데이터가 사용된다. 생명 데이터는 복잡한 처리과정이 필요하여 인공지능 기술활용의 필요성이 높지만, 개인의 민감정보를 담고 있기에 사용에 많은 제약이 따른다. 개인정보 이용의 활성화를 위하여 이른바 ‘데이터 3법’ 개정안이 통과되었다. 개인정보 보호 법의 적용 범위에 가명정보의 개념이 새로이 포함 되었는데, 가명정보는 기존의 개인정보와는 달리 정보주체의 동의 없는 자유로운 처리가 가능하다는 점이 특징적이다. 그러나 법문 규정 상 가명정보의 의미가 명확하지 않아 개인정보 보호법의 해석과 적용에 어려움이 있을 것으로 생각된다. 광의의 개인정보 개념은 가명정보를 포함하지만, 개인정보 보호법에서는 가명정보를 일반적인 개인정보와는 다르게 취급한다. 일반적으로 사용 되는 개인정보, 가명정보, 익명정보의 정의와 비 식별화 기법으로부터 현행 개인정보 보호법 상 의료 가명정보의 개념을 이해하고자 하였다. 비식별화가 진행되면 개인정보는 가명정보 혹은 익명 정보가 되며, 이 과정에서 개인정보의 보호는 강해지지만 정보의 활용도는 감소한다. 도식을 이용 하여 정보주체와 정보활용자의 이해관계가 최적화되는 비식별화 정도를 결정하였다. 가명정보에서는 정보주체와 정보생산자가 일치하지 않으며, 그에 따라 여러 문제들이 발생한다. 가명정보의 유출로부터 개인이 식별될 위험이 있으며, 가명정보의 주체가 정보 제공의 대가를 받지 못하는 것이 문제될 수 있다. 가명정보 보유자가 개인정보를 무분별하게 처리하는 것 역시 정보주체의 의사와는 다르다는 점에서 검토할 가치가 있다. 정보활용 제외 신청 제도 도입, 정보 이용 내역의 통지 의무 부과, 개인정보 보호기금 제도와 가명정보 유출 시의 예외적 면책 사유 도입 등의 방법을 통해 정보주체의 권리를 보호하면서도 연구자의 정보활용을 촉진할 수 있을 것으로 기대된다.
The number of livestock that is being raised worldwide is increasing every year due to the increase of human meat consumption. In Korea, the number of breeding numbers is steadily increasing every year due to the high rate of intensification and massification. However, in order to prevent further spread of livestock infectious diseases immediately after the outbreak of foot-and-mouth disease and avian influenza, large-scale burial of livestock was carried out in a short period of time. As a result of inadequate land- Pollution is occurring. Incineration and other treatments are difficult in reality due to domestic livestock environment conditions, so they are mostly processed according to buried method. In this study, the animal carcass (chicken and duck) with a moisture content of about 70% were dried with microwave at the final function rate of about 10~20% to solve the problem using mobile incineration method of burial method. It is meaningful to make it a porous solid fuel that is easy to incinerate animal carcass in order to fundamentally solve the environmental pollution by drying them. In addition, this study examined problems caused by butchery animal treatment and conducted a recognition survey on 1,000 adult consumers nationwide about the treatment of livestock with diseases. Therefore, it would be necessary to develop an effective treatment method for animal carcass considering the resources of animal carcasses.
The purpose of this study was to develop synbiotic materials and to apply them to the puffed grain products using electrostatic spraying technology. Lactic acid bacteria were isolated from Kimchi and selected through tests of acid resistance, bile salt resistance and γ-aminobutyric acid (GABA) content. The isolated Lactobacillus brevis CFM21 produced highest GABA production up to a concentration of 926.42 μg/mL when grown in MRS broth containing 0.8% MSG. The possibility of coated grains as a prebiotic material was evaluated Confocal laser scanning micro scopy (CLSM). Rice bran extract containing 2% dextrose, 2% soytone, 0.2% potassium chloride, 0.6% MSG was produced 524.77 μg/mL of GABA. Citrus sinensis oil showed the highest antibacterial activity against Clostridium perfringens Electrostatic spray showed much higher effectiveness than conventional spray in coating the puffed grain product through CLSM. Applying Rice bran culture and Citrus sinensis oil to puffed grain product using electrostatic spray could contribute to promote intestinal health of consumers.
HNS 사고 후 활용할 수 있는 모니터링 지침 개발을 위해 국내외 HNS 사고 후 해양환경영향평가 및 모니터링 관련 사례를 검토하였다. 그 첫 단계로 해양생물 및 서식처를 중심으로 하는 HNS 사고 후 모니터링 및 해양환경영향평가 지침을 개발하였고, 의사결정자 및 작업실무자들에게 적합하도록 내용을 구성하였다.