• 한국컴퓨터정보학회논문지
• /
• 제23권7호
• /
• pp.73-80
• /
• 2018

There are various organizations in modern society, in which people have direct and indirect relationships. Internal structure of these organizations can be analyzed by the relationships which are officially pressed on the media. However, this task will be difficult when the media information is strictly limited, though the necessity of analyzing organization structure remains. In this study, we try to estimate the influence of North Korea's core members by using PageRank centrality to supplement the limitation of previous SNA analysis methods. Experimental results show that we can show and predict NK's power shifts more efficiently.

• 융합보안논문지
• /
• 제14권6_1호
• /
• pp.57-63
• /
• 2014

한반도는 탈냉전이라는 역사적 변화에도 불구하고 냉전적 구조가 해제되지 않고 북한의 대남도발은 계속되고 있다. 북한의 천안함 폭침과 연평도 포격도발은 파국적인 남북관계 초래와 동북아 불안정의 요인으로 작용하고 있다. 북한의 도발은 미국과 한국 및 북한 내부 요인이 북한의 의사결정체계에서 복합적으로 작용하여 군사 비군사적 수단에 의해 자행되고 있다. 북한은 한반도의 적화통일이라는 전략기조을 유지하기 때문에 공세적으로 지속될 수밖에 없을 것이다. 북한의 대외정책은 지속성과 상황에 따라 변화하는 양면성을 지니고 있다. 북한 대외정책의 목표와 이념은 비교적 일관성 있게 지속하고 있지만, 정책전개의 전략 전술과 행동 유형에서는 상당한 변화가 있다. 즉, 지속성은 곧 국가 체제유지와 국가 생존 명분의 문제이며, 변화는 지속성과 명분을 유지시키고 발전하기 위한 전술적 종속개념에 해당한다. 합리적인 시각으로 본다면 북한의 대외정책 기조는 군사력과 핵무기 개발을 생존수단으로 삼아 긴장을 조성하여 외교적, 경제적 보상을 얻는 외교방식을 과감하게 탈피하여야 하며 국제사회에 참여하여 하나의 국가로서 국제관례를 지키는 자세를 견지해야 하나 여러 가지 여건상 기존 대외정책 방향을 고수하고 있다.

• Current Optics and Photonics
• /
• 제3권6호
• /
• pp.541-547
• /
• 2019

A novel photonic crystal fiber (PCF) sensor with three D-shaped holes based on surface plasmon resonance (SPR) is analyzed in this paper. Three D-shaped holes are filled with the analyte, and the gold film is deposited on the side of three planes. The design of D-shaped holes with outward expansion can effectively solve the uniformity problem of metallized nano-coating, it is beneficial to the filling of the analyte and is convenient for real-time measurement of the analyte. Compared with the hexagonal lattice structure, the triangular arrangement of the clad air holes can significantly reduce the transmission loss of light and improve the sensitivity of the sensor. The influences of the air hole diameter, the distance between D-shaped holes and core, and the counterclockwise rotation angle of D-shaped holes on sensing performance are studied. The simulation results show that the wavelength sensitivity of the designed sensor can be as high as 10100 nm/RIU and the resolution can reach 9.9 × 10^-6 RIU.

• Strategy21
• /
• 통권41호
• /
• pp.232-260
• /
• 2017

The purpose of this paper is to open a debate about what kind of deterrent strategy the ROK military should pursue in the era of NK's weapons of mass destruction and missile threats. I argue that the ROK military needs a comprehensive deterrent strategy that reflects the international security situations and trends and that builds on clear understanding of the basic concepts and how deterrence operates. The paper starts with surveying the basic knowledge of deterrence from the perspectives of both theory and practice. Then, it provides explanations on why deterrence against NK can be particularly difficult given the security environment in and around the Korean peninsula. For example, South Korea and North Korea hardly share 'common knowledge' that serves as a basic element for the operation of deterrence. Deterrence against North Korea involves complex situations in that both deterrence and compellence strategies may be relevant particularly to North Korea's WMD and missile threats. It also involves both immediate and general deterrence. Based on the discussion, I suggest several ideas that may serve as guidelines for establishing a deterrent strategy against NK. First, our threats for deterrence should be the ones that can be realized, particularly in terms of the international norms. In other words, they must be considered appropriate among other nations in the international community. Second, there should be separate plans for the different kinds of threats: one is conventional, local provocations and the other is WMD/missile related provocations. Third, we should pursue much closer cooperative relations with the U.S. military to enhance the effectiveness of immediate deterrence in the Korean peninsula. Fourth, the ROK military should aim to accomplish 'smart deterrence' maximizing the benefits of technological superiority. Fifth, the ROK military readiness and structure should be able to deny emerging North Korean military threats such as the submarine-launched ballistic missiles and intercontinental ballistic missiles. Lastly, in executing threats, we should consider that the current action influences credibility and reputation of the ROK, which in turn affect the decisions for future provocations. North Korea's WMD/missile threats may soon become critical strategic-level threats to South Korea. In retrospect, the first debate on building a missile defense system in South Korea dates back to the 1980s. Mostly the debate has centered on whether or not South Korea's system should be integrated into the U.S. missile defense system. In the meantime, North Korea has become a small nuclear power that can threaten the United States with the ballistic missiles capability. If North Korea completes the SLBM program and loads the missiles on a submarine with improved underwater operation capability, then, South Korea may have to face the reality of power politics demonstrated by Thucydides through the Athenians: "The strong do what they have the power to do, the weak accept what they have to accept."

• 한국콘텐츠학회논문지
• /
• 제17권11호
• /
• pp.82-89
• /
• 2017

이 글에서는 북한의 중요한 정치적 해였던 2015년에 제작된 영화문헌 <경애하는 최고사령관 김정은동지께서 인민군대사업을 현지에서 지도>의 의미생성 구조를 파악하여, 북한이 영화문헌을 통해 어떤 방식으로 북한 주민을 선동하고, 설득시키는지를 살펴보고자 했다. 분석 결과, 분석대상의 서사구조는 서론, 본론, 결론의 논증구조를 통해 이미 제시된 주제를 확증시키고 있다. 영상기법은 대중적 투쟁정신을 고취시키고 있고, 사운드는 대중에 응집력을 추동하는데 기여하고 있다. 이러한 점을 고려할 때 영화문헌의 의미체계는 첫째, 영상 실록의 형태를 띠며 대중이 이해하기 쉬운 구조를 택하고 있다. 둘째, 당의 선군영도를 따라 주체위업을 이루어 내자는 주제의식을 명확히 논증해 내고 있다. 셋째, 혁명 활동에 대한 수령의 근면성을 기록영상을 통해 착상, 배치함으로 늘 깨어 일하는 지도자상을 구축하고 있다. 북한에서 영화문헌은 혁명과 건설을 추동하는 무기이다. 이에 따라 모든 기록영화 창작가들은 영화문헌을 수령과 당의 영화문헌이 되게 해야 했다. 김정은 체제가 '사회주의문명국'이라는 사회적 비전을 내세워 영화문헌이라는 선전도구를 통해 통치력을 강화하고 있음을 알 수 있다.

• 지역사회간호학회지
• /
• 제29권4호
• /
• pp.488-498
• /
• 2018

Purpose: This study was conducted to identify the influence of trauma experiences and social adjustment on health-related quality of life in North Korean defectors. Methods: The subjects were 117 North Korean defectors living in B and Y city. The data were collected from September 1 to September 20, 2014, and analyzed by the SPSS/WIN 18.0 program. Results: Significant differences were found in the health-related quality of life with respect to the subjects' education, marriage status, types of dwelling, family types, duration of residence in South Korea, jobs in South Korea and in North Korea, families left in North Korea or other surrounding countries, and subjective health status. Health-related quality of life is negatively related to trauma experiences during escape from North Korea and during their life in South Korea. Health-related quality of life positively is related to social adjustment. The meaningful variables which influenced the subjects'health-related quality include social adjustment, job in South Korea, job in North Korea, current family structure, and trauma experiences in South Korea. Total explanatory power of these factors for health-related quality in North Korean Defectors is 43.0% and social adjustment is the most influential factor. Conclusion: Therefore, in order to enhance health-related quality of life in North Korean defectors, it is necessary for them to increase social adjustment and decrease trauma experiences. In addition, methods are needed to provide job opportunities, better education and family services for North Korean defectors.

• 시큐리티연구
• /
• 제1호
• /
• pp.17-50
• /
• 1997

I study on the security organization for the chief of state in North and South Korea. The paper, purporting to analyze security system in comparative prospectives, comprise four chapters. Chapter I Which sets out purpose, scope and method, is followed by Chapter II , dealing largely with the power structure on The Socialist Constitution of Democratic People's Republic of Korea, the protection organization and security activities for the chief of state in North Korea. Chapter III concerns the security environment - terrorist groups, firearms, explosives, suspects, movements of hostile countries and orthers - and the protection organization on The Presidential Security Service for the president in South Korea, culminating in projection of certain problem area. It is followed by concluding observation made in Chapter IV. To be operated security systems effectively, these need to be regulated according to a protective scale, function, authority of a existing.

• Strategy21
• /
• 통권31호
• /
• pp.57-84
• /
• 2013

North Korea's continuous threats and provocative behaviors have aggravated tension on the Korean peninsula particularly with the recent nuclear weapons test. South Korea's best way to cope with this situation is to maintain the balance among three policy directions: dialogue, sanctions, and deterrence. Among the three, I argue that deterrence should be prioritized. There are different sources of deterrence such as military power, economic power, and diplomatic clouts. States can build deterrence capability independently. Alternatively, they may do so through relations with other states including alliances, bilateral relations, or multilateral relations in the international community. What South Korea needs most urgently is to maintain deterrence against North Korea's local provocations through the enhancement of independent military capability particularly by addressing the asymmetric vulnerability between militaries of the South and the North. Most of all, the South Korean government should recognize the seriousness of the negative consequences that North Korea's 'Nuclear shadow strategy' would bring about for the inter-Korea relations and security situations in Northeast Asia. Based on this understanding, it should develop an 'assertive deterrence strategy' that emphasizes 'multi-purpose, multi-stage, and tailored deterrence whose main idea lies in punitive retaliation.' This deterrence strategy requires a flexible targeting policy and a variety of retaliatory measures capable of taking out all targets in North Korea. At the same time, the force structures of the army, the air force, and the navy should be improved in a way that maximizes their deterrence capability. For example, the army should work on expanding the guided missile command and the special forces command and reforming the reserve forces. The navy and the air force should increase striking capabilities including air-to-ground, ship-to-ground, and submarine-to-ground strikes to a great extent. The marine corps can enhance its deterrence capability by changing the force structure from the stationary defense-oriented one that would have to suffer some degree of troop attrition at the early stage of hostilities to the one that focuses on 'counteroffensive landing operations.' The government should continue efforts for defense reform in order to obtain these capabilities while building the 'Korean-style triad system' that consists of advanced air, ground, and surface/ subsurface weapon systems. Besides these measures, South Korea should start to acquire a minimum level of nuclear potential within the legal boundary that the international law defines. For this, South Korea should withdraw from the Nuclear Non-proliferation Treaty. Moreover, it should obtain the right to process and enrich uranium through changing the U.S.-South Korea nuclear cooperation treaty. Whether or not we should be armed with nuclear weapons should not be understood in terms of "all or nothing." We should consider an 'in-between' option as the Japanese case proves. With regard to the wartime OPCON transition, we need to re-consider the timing of the transition as an effort to demonstrate the costliness of North Korea's provocative behaviors. If impossible, South Korea should take measures to make the Strategic Alliance 2015 serve as a persisting deterrence system against North Korea. As the last point, all the following governments of South Korea should keep in mind that continuing reconciliatory efforts should always be pursued along with other security policies toward North Korea.

• 한국산학기술학회논문지
• /
• 제21권7호
• /
• pp.212-217
• /
• 2020

태양광 발전 시스템은 태양광 패널을 통해 발전된 전력을 계통연계를 통해 전송하는 종합 시스템이다. 발전량을 증대시키는 기술로써 태양광 입사각을 변화시켜 발전량을 증대시키는 추적식 태양광 발전장치 기술이 있다. 본 논문은 입사각을 변화시켜 발전량을 증대시키는 단축 추적식 태양광 발전장치의 구조물과 제어에 관한 연구이다. 핵심 내용은 태양광 구조물이 남북축을 중심으로 동서 방향으로 축회전하도록 구성한 단축 제어장치 및 기술이다. 일출로부터 일몰까지 동서방향으로 태양을 추종하는 태양광 구조물은 구조적 안정성과 태양광 추종 제어 성능 확보가 필요하다. 단축 추적 발전장치는 최대 25% 이상의 발전량 증대를 기대할 수 있다.

• 아동학회지
• /
• 제21권2호
• /
• pp.5-16
• /
• 2000

This study compared the meaning of words in the play songs of the Democratic Peoples Republic of Korea(DPRK). Sixteen children who had escaped from North Korea participated in this survey in Seoul by responding to a questionnaire. In the DPRK, children sing formal songs, used as instruments of ideological socialization. Among the songs were 4 composed prior to the creation of the DPRK in 1945. The other songs were composed after 1945 and exhibited ideological characteristics. Despite differences in sources, themes, and ideologies of play songs, some of them contained common themes, materials, rhythms, and typical Korean emotional structure. Considering the power of play songs in spreading cultural influence, they might be the key to resolving psychological conflicts of both Koreas after unification.