• 한국재난정보학회:학술대회논문집
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• 한국재난정보학회 2022년 정기학술대회 논문집
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• pp.137-138
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• 2022

2022년 7월 8일 일본 전 총리 아베는 나라현의 야마토사이다이지 역에서 야마가미 데스야의 사제총격에 심각한 총상을 입고 과다출혈로 사망하였다. 다중이용시설에서의 테러안전관리 미흡으로 인해 발생한 본 사건은 다중이용시설 테러안전관리의 중요성을 보여주는 대표적인 테러사례이다. 국내와 유사한 테러환경을 갖춘 인접국가 일본 발생한 테러사건이므로, 국내 다중이용시설 테러안전관리에 대한 경각심을 일깨워 주고 있다. 대한민국은 세계적으로 높은 인구밀도와 원스톱 서비스의 선호 욕구로 인해 대부분의 다중이용시설들은 운송·판매·문화 및 집회 등의 기능이 다양하게 복합된 시설로 발전해 가고 있어, 테러리스트의 테러대상 선정의 3가지 요건인 접근성(Easy-Access), 상징성(symbolism), 미디어 집중성(Media Attention)을 갖춘 매력적인 테러대상시설이 되어 가고 있다. 또한, 최근 국제테러 동향을 살펴보면, 국가중요시설, 군사시설과 같은 하드 타겟(Hard Target)보다 엔터테인먼트, 문화, 관람, 카지노, 시장, 플라자, 광장, 소매점, 대형마트 등의 판매·문화 및 집회시설인 소프트 타겟(Soft Target)에서 고 위험성의 테러가 높은 빈도로 발생하고 있는 추세로 다중이용시설은 테러안전관리가 절대적으로 필요해져 가고 있다. 이에 반해, 국내 다중이용시설 테러안전관리를 위한 지도·점검 및 시설 취약요인 사전제거 활동 등 대부분의 대테러 활동이 미흡한 실정이다. 국내에서 소프트 타겟은 『테러방지법 제25조 시행령』(테러대상시설 및 테러이용수단 안전 대책 수립)과 『테러대상시설 및 테러이용수단 시설의 안전대책에 관한 규정』에 따라 정부에서는 대테러 활동을 매년 상시적으로 하고 있지만, 아직까지 부족한 실정이다. 따라서 본 연구에서는 현 다중이용시설의 테러안전관리 문제점과 취약점을 살펴보고, 이에 대한 개선방안을 제시하고자 하였다.

• 무역학회지
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• 제48권4호
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• pp.169-188
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• 2023

공세적이고 일방주의적 조치의 증가는 최근 국제통상환경의 대표적인 특징이다. EU는 이러한 환경에 대처하기 위해 제3국의 경제적 위협 시 독자적인 대응조치 허용을 골자로 하는 '경제적 위협 대응조치 규칙안' 도입을 추진하고 있다. 본 고는 규칙안의 입법 배경인 최근 공세적 통상환경의 특징을 살펴보고 기존 EU의 통상정책과의 연계 및 발전 맥락에서 동 규칙안의 필요성 및 우려의 측면을 평가하였다. 또한 타국의 경제적 위협에 대해 독자적으로 대처하고자 하는 시도가 국제적으로 확산되고 있는바, EU의 경제적 위협 대응조치 규칙안의 WTO 체제하에서의 허용 가능성을 검토하였다. 마지막으로 점증하는 지정학적 위기 속에서 우려되는 경제적 위협과 통상마찰에 대한 우리의 국내적 대응 방안 측면에서 동 규칙안의 시사점을 도출하였다.

• 한국컴퓨터정보학회논문지
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• 제29권6호
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• pp.201-209
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• 2024

COVID-19는 항공산업에 큰 영향을 주어 전 세계적인 여행 제한과 보안 강화 등의 변화를 불러 왔다. 본 연구는 COVID-19 전후 항공 서비스 만족도의 변화양상을 파악하기 위해 2016년부터 2023년까지 SKYTRAX 웹사이트에 게시된 147개 항공사에 대한 59,818개의 리뷰를 수집하고 감성 분석 기법을 활용하여 COVID-19 전후의 항공사 만족도, 리뷰 감성, 만족도에 영향을 미치는 속성을 비교 분석하였다. 분석 결과, COVID-19 이후 항공사 만족도 전반이 통계적으로 유의미하게 하락했으며 (p<0.001), 모든 항공사 선택 속성에 대한 긍정적 감성 비율이 유의미하게 감소한 반면, 부정적 감성 비율은 객실 및 기내서비스를 제외한 모든 속성에서 유의미하게 증가했다. 또한, 운항 서비스는 COVID-19 전후 기간 모두 전반적인 서비스 만족도에 가장 큰 영향을 미치는 것으로 나타났다. 이 연구는 COVID-19 전후 글로벌 주요 항공사의 만족도 속성에 대한 정량적 분석을 제공함으로써 향후 항공산업의 서비스 만족도 제고에 이바지할 것으로 기대된다.

• 농업과학연구
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• 제50권4호
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• pp.785-798
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• 2023

Considering irrigation facilities are currently insufficient and drought vulnerability due to climate change is high, efficient measures are required to secure water supply for field crops. This study, therefore, calculated the water shortage to secure water for representative field crops. An economic analysis was further conducted by comparing the production income to the input cost for each method. Here, five distinct regions were selected to represent each crop-Cheongyang-gun for chili peppers, Yesan-gun for apples, Dangjin-si for cabbages, Seosan-si for garlic, and Goesan for beans. The regions with insufficient water supply were estimated by calculating the water requirements and the supplied water from public groundwater wells for each area. A comprehensive set of four scenarios was presented as a strategy to ensure water security and manage irrigation facilities. These scenarios comprised the maintenance of existing groundwater wells, the construction of new water storage tanks, the installation of additional groundwater wells, and the utilization of surface water. B/C (benefit/cost) analysis was conducted for each scenario. As a result, the construction of water storage tanks was selected as a facility and water management plan in Cheongyang-gun, Dangjin-si, and Seosan-si. The analysis additionally indicated the economic viability of installing surface water utilization facilities in Yesan-gun and developing water storage tanks and groundwater (aquifer) wells in Goesan-gun. The results of this study are considered to serve as foundation data that may be utilized in the selection of water management plans for drought-prone areas in the future.

• International Journal of Internet, Broadcasting and Communication
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• 제16권1호
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• pp.17-28
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• 2024

As listed as one of the most important requirements for Post-Quantum Cryptography standardization process by National Institute of Standards and Technology, the resistance to various side-channel attacks is considered very critical in deploying cryptosystems in practice. In fact, cryptosystems can easily be broken by side-channel attacks, even though they are considered to be secure in the mathematical point of view. The timing attack(TA) and the simple power analysis attack(SPA) are such side-channel attack methods which can reveal sensitive information by analyzing the timing behavior or the power consumption pattern of cryptographic operations. Thus, appropriate measures against such attacks must carefully be considered in the early stage of cryptosystem's implementation process. The Montgomery multiplier is a commonly used and classical gadget in implementing big-number-based cryptosystems including RSA and ECC. And, as recently proposed as an alternative of building blocks for implementing post quantum cryptography such as lattice-based cryptography, the big-number multiplier including the Montgomery multiplier still plays a role in modern cryptography. However, in spite of its effectiveness and wide-adoption, the multiplier is known to be vulnerable to TA and SPA. And this paper proposes a new countermeasure for the Montgomery multiplier against TA and SPA. Briefly speaking, the new measure first represents a multiplication operand without 0 digits, so the resulting multiplication operation behaves in a very regular manner. Also, the new algorithm removes the extra final reduction (which is intrinsic to the modular multiplication) to make the resulting multiplier more timing-independent. Consequently, the resulting multiplier operates in constant time so that it totally removes any TA and SPA vulnerabilities. Since the proposed method can process multi bits at a time, implementers can also trade-off the performance with the resource usage to get desirable implementation characteristics.

• 대한통합의학회지
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• 제12권2호
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• pp.25-32
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• 2024

Purpose: This study utilizes big data from the 8th (2021) National Health and Nutrition Examination Survey to determine first, the relationship between chewing discomfort in the elderly and some systemic diseases and second, whether oral diseases and oral health problems are related to systemic diseases. Since this may have an impact, we aim to provide basic data to facilitate the expansion and emphasize the importance of integrated health management education. Methods: Original data from the 8th (2021) National Health and Nutrition Survey, conducted by the Korea Centers for Disease Control and Prevention, were analyzed using SPSS Version 21.0 (IBM). A complex sample frequency analysis was conducted to confirm the general and health-related characteristics of the study subjects, and a complex sample cross-analysis was conducted to determine chewing discomfort according to both general and health-related characteristics. Complex sample multiple logistic regression analysis was conducted to determine the effect on chewing discomfort. Results: In order to analyze the factors that affect chewing discomfort, the general characteristics that showed significant differences in chewing discomfort were adjusted for age, personal income, education level, basic livelihood security, high blood pressure, subjective health status, and subjective oral health. It was found that the condition had a statistically significant effect on chewing discomfort. Conclusion: The findings of this study demonstrate that high blood pressure, subjective health status, and subjective oral health status affect chewing discomfort; hence, measures such as developing and operating programs to improve national oral health are needed. We hope that our study will be used as basic data for research into chewing discomfort and systemic diseases in the elderly.

• 시큐리티연구
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• 제13호
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• pp.423-449
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• 2007

본 연구는 경찰서 유치장에 구금되어 있는 유치인들의 인식분석을 통하여 유치장의 시설 및 운영 실태를 분석하고, 그에 대한 정책적 시사점을 제시하는데 목적이 있다. 한국 경찰서 유치장 시설에 대한 유치인 인식조사 결과에 따른 정책적 제언은 첫째, 유치장 구조는 인권친화적인 일자형으로 배치하고, 여성${\cdot}$남성${\cdot}$장애인${\cdot}$소년범등의 피의자를 차별하여 유치할 수 있는 유치장 시설을 확충해야 한다. 둘째, 유치실 외부에 목욕장과 세면장 시설을 유치인들이 항상 이용할 수 있도록 하여야 한다. 셋째, 비상구가 설치되어 있지 않은 경우 빠른 시일 내에 비상구를 설비해야 하며, 수용된 유치인수와 내부면적을 고려하여 소화기를 충분히 비치해야 할 것이다. 넷째, 외부의 공기를 유치장 내부로 순환할 수 있도록 적절한 수의 창문을 확보하여야 할 것이며, 인공조명에만 의존하기 보다는 자연채광을 활보하는 실질적인 조치가 필요하다. 다섯째, 유치장 내 냉${\cdot}$난방 시설은 유치인의 수와 규모에 합당한 시설을 구비하여야 할 것이다. 또한, 경찰서 유치장 운영에 대한 유치인 인식조사 결과에 따른 정책적 제언은 첫째, 유치장 운영의 문제는 낙후된 유치장 시설과 함께 다루어져야 할 것이며, 빠른 시일 내에 예산확보 등과 같은 조치를 해야 한다. 둘째, 낡고 오랜 된 책들은 폐기하고, 독서 흥미를 유발 할 수 있는 잡지 등을 구비하는 것이 요구되며, 유치된 피의자 중에는 생계가 곤란한 점 등을 충분히 고려하여 기본적인 생필품 등은 지급하는 것이 바람직하다. 셋째, 영치물품의 관리는 모든 경찰서 유치장에서 동일한 제목의 서류와 양식으로 관리 되어져야 하며, 여성유치보호관 인력을 확충하여 여성 유치인들에 대한 신체검사 및 송치 등의 업무를 전담하게 하여야 한다. 또한, 장애인을 위해 구비된 목발이나 휠체어, 이동식 좌변기 등과 같은 장애인관련 시설물들을 잘 관리하고 보관할 필요가 있다.

• 항공우주정책ㆍ법학회지
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• 제2권
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• pp.31-67
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• 1990

One of the first issues which arose in the evolution of air law was the determination of the vertical limits of airspace over private property. In 1959 the UN in its Ad Hoc Committee on the Peaceful Uses of Outer Space, started to give attention to the question of the meaning of the term "outer space". Discussions in the United Nations regarding the delimitation issue were often divided between those in favour of a functional approach ("functionalists"), and those seeking the delineation of a boundary ("spatialists"). The functionalists, backed initially by both major space powers, which viewed any boundary as possibly restricting their access to space(Whether for peaceful or military purposes), won the first rounds, starting with the 1959 Report of the Ad Hoc Committee on the Peaceful Uses of Outer Space which did not consider that the topic called for priority consideration. In 1966, however, the spatialists, were able to place the issue on the agenda of the Outer Sapce Committee pursuant to Resolution 2222 (xxx1). However, the spatialists were not able to present a common position since there existed a variety of propositions for delineation of a boundary. Over the years, the funtionalists have seemed to be losing ground. As the element of location is a decisive factor for the choice of the legal regime to be applied, a purely functional approach to the regulation of activities in the space above the Earth does not offer a solution. It is therefore to be welcomed that there is clear evidence of a growing recognition of the defect inherent to such an approach and that a spatial approach to the problem is gaining support both by a growing number of States as well as by publicists. The search for a solution of the problem of demarcating the two different legal regimes governing the space above the Earth has undoubtedly been facilitated, and a number of countries, among them Argentina, Belgium, France, Italy and Mexico have already advocated the acceptance of the lower boundary of outer space at a height of 100km. The adoption of the principle of sovereignty at that height does not mean that States would not be allowed to take protective measures against space activities above that height which constitute a threat to their security. A parallel can be drawn with the defence of the State's security on the high seas. Measures taken by States in their own protection on the high seas outside the territorial waters-provided that they are proportionate to the danger-are not considered to infringe the principle of international law. The most important issue in this context relates to the problem of a right of passage for space craft through foreign air space in order to reach outer space. In the reports to former ILA Conferences an explanation was given of the reasons why no customary rule of freedom of passage for aircraft through foreign territorial air space could as yet be said to exist. It was suggested, however, that though the essential elements for the creation of a rule of customary international law allowing such passage were still lacking, developments apperaed to point to a steady growth of a feeling of necessity for such a rule. A definite treaty solution of the demarcation problem would require further study which should be carried out by the UN Outer Space Committee in close co-operation with other interested international organizations, including ICAO. If a limit between air space and outer space were established, air space would automatically come under the regime of the Chicago Convention alone. The use of the word "recognize" in Art. I of chicago convention is an acknowledgement of sovereignty over airspace existing as a general principle of law, the binding force of which exists independently of the Convention. Further it is important to note that the Aricle recognizes this sovereignty, as existing for every state, holding it immaterial whether the state is or is not a contracting state. The functional criteria having been created by reference to either the nature of activity or the nature of the space object, the next hurdle would be to provide methods of verification. With regard to the question of international verification the establishment of an International Satelite Monitoring Agency is required. The path towards the successful delimitation of outer space from territorial space is doubtless narrow and stony but the establishment of a precise legal framework, consonant with the basic principles of international law, for the future activities of states in outer space will, it is still believed, remove a source of potentially dangerous conflicts between states, and furthermore afford some safeguard of the rights and interests of non-space powers which otherwise are likely to be eroded by incipient customs based on at present almost complete freedom of action of the space powers.

• 안보군사학연구
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• 통권9호
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• pp.313-340
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• 2011

The National Defense Reformation bill of "National Defense Reformation 2020" which have been constantly disputed and reformed by the government went through various levels of complementary measures after the North Korean sinking on the Republic of Korea (ROK) Naval Vessel "Cheonan". The final outcome of this reform is also known as the 307 Plan and this was announced on the 8th March. The reformed National Defense Reformation is to reduce the number of units and military personnel under the military structure reformation. However, in order for us to undertake successful National Defense Reformation, the use of privatized civilian resources are essential. Therefore according to this theory, the ROK Ministry of National Defense (MND) have selected the usage of privatized resources as one of the main core agenda for the National Defense Reformation management procedures, and under this agenda the MND plans to further expand the usage of private Especially the MND plans to minimize the personnel resources applied in non-combat areas and in turn use these supplemented personnel with optimization. In order to do this, the MND have initiated necessary appropriate analysis over the whole national defense section by understanding various projects and acquisition requests required by each militaries and civilian research institutions. However for efficient management of privatized civilian resources, first of all, those possible efficient private resources which can achieve optimization will need to be identified, and secondly continuous systematic reinforcements will need to be made in private resource usage legislations. Furthermore, we would need to consider the possibility of labor disputes because of privatization expansion. Therefore, full legal and systematic complementary measures are required in all possible issue arising areas which can affect the combat readiness posture. There is another problem of huge increase in operational expenses as reduction of standby forces are only reducing the number of soldiers and filling these numbers with more cost expensive commissioned officers. However, to overcome this problem, we would need to reduce the number of positions available for active officers and fill these positions with military reserve personnel who previously had working experiences with the related positions (thereby guaranteeing active officers re-employment after completing active service). This would in tum maintain the standards of combat readiness posture and reduce necessary financial budgets which may newly arise. The area of maintenance, supply, transportation, training & education duties which are highly efficient when using privatized resources, will need to be transformed from military management based to civilian management based system. For maintenance, this can be processed by integrating National Maintenance Support System. In order for us to undertake this procedure, we would need to develop maintenance units which are possible to be privatized and this will in turn reduce the military personnel executing job duties, improve service quality and prevent duplicate investments etc. For supply area, we will need to establish Integrated Military Logistics Center in-connection with national and civilian logistics system. This will in turn reduce the logistics time frame as well as required personnel and equipments. In terms of transportation, we will need to further expand the renting and leasing system. This will need to be executed by integrating the National Defense Transportation Information System which will in turn reduce the required personnel and financial budgets. Finally for training and education, retired military personnel can be employed as training instructors and at the military academy, further expansion in the number of civilian professors can be employed in-connection with National Defense Reformation. In other words, more active privatized civilian resources will need to be managed and used for National Defense Reformation.

• 한국방재안전학회논문집
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• 제10권2호
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• pp.7-19
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• 2017

최근 들어 재난 및 안전사고 발생 빈도가 급격히 증가하고 있으며, 이에 대한 국민들의 관심과 요구가 높아지고 있다. 특히 우리나라의 교통사고는 정부 및 지자체의 지속적인 노력으로 인해 감소하고 있는 추세에 있지만, OECD 평균에 비해서는 여전히 아직까지는 높은 수준을 보이고 있다. 이와 같은 시대적 요구에 따라 각 지자체의 안전수준을 분야별로 계량화한 수치인 '지역안전지수'를 매년 공개하여 국민들의 경각심을 일깨우고 있다. 지역안전지수는 지방자치단체에서 발생하는 7개 분야의 사고(교통사고, 범죄, 자살, 감염병, 화재, 안전사고, 자연재해)를 다루지만, 본 연구에서는 교통사고 분야에 집중하여 분석을 실시하였다. 분석대상 지자체는 울산광역시 울주군이며, 울주군의 교통사고 통계 데이터를 기반으로 교통사고 발생현황, 사고 취약지점 등을 분석하였다. 그 중 3개의 중점개선지구를 선정하고 각각의 중점개선지구별로 15개의 취약지점을 선정하였다. 다음으로 교통사고 관련 현황자료를 통한 공간정보 분석과 유관기관 면담을 통해 사고 취약지점별 개선대책을 마련하였다. 또한 개선대책은 교통사고 예방의 관점에서 구조적인 인프라 개선, 제도적 개선, 교통안전문화운동전개 등으로 구분하여 구체적인 방안을 제시하였다. 끝으로 본 연구의 시사점은 교통사고 예방을 위한 개선 사업별 추진일정 및 예산을 제시한 이행계획을 토대로 지자체내 담당부서의 임무와 역할을 명기하였다. 그리고 교통사고 관련 유관기관 및 민간부문의 참여 방안을 구체적으로 제시하였다는 점에 큰 의의가 있다.