6 · 25전쟁의 교훈과 미래 전

정일화 ( Jung Il Hwa ) 한국군사학회 2017 군사논단 Vol.89 No.-

In American history, US Armed Forces has never been so successfully and rapidly deployed to help her ally to repel invading forces than the Korean War, that the invading North Korean had prepared its military invasion from the beginning of the regime. North Korea constituted its armed forces in 1948 with the provision of a well trained and war experienced 4 divisions personnel and equipments from Red China, and later Soviet Union added the strength of the military by providing strong attack armaments such as T34 tanks, 122㎜ long-range guns, 120㎜ mortars for the future invasion of South Korea. Republic of Korea was swirled in lots of trial and error in the course of adapting totally new political system of free democracy in her 5,000 history. The North Korean invading forces were so strong for the constabulary-level South Korean Army that the latter lost Seoul, her capital city in just 3 days. The successful contribution of the US Forces for the defense of the Republic of Korea in the War was attributed to two strategies, that is, of taking advantage of UN authorities and of holding air and sea supremacy in the early stage of the war. It should had been difficult to send the expeditionary forces under the ordinal procedure of the US laws such as Congress consent of the dispatch. The State Department and White House decided to mobilize UN role of collective security system under which US could send its armed forces as of an international police force immediately. When UN Security Council adopted Korean resolutions in the Security Council, US Forces took into action of blocking all the 3 faces of sea of the Peninsula and pushing air supremacy by which UN Command could execute successful Inchon Landing and other sea and air supports in the 3 year war. Even though US-Korean`s bilateral relations have been strengthened through multi-aspects, and especially establishment of Combined Forces Command in 1978, the basic frame of UN umbrella in keeping peace and prosperity of the peninsula remained unchanged as well as air and sea supremacy principle of the peninsula is decisive aspect to keep the Republic safe and protected in war time of present and future. In reviewing the UN General Assembly resolution of 376V(October 7, 1950 passed)that authorized UNC to cross over the 38th parallel to dismantle North Korean military regime and preparing general election there to unite the peninsula, the important role of UN should be reminded and kept as a principal institute of solving the Korean problem. Also we could not negligent to keep an eye on the fact that since Korean War North Korea has been pouring their energy in overcoming UN sea and air supremacy of the War, and subsequently reached considerable results such as of succeeding SLBM and long range missile tests recently. We suspect that in the future war in the peninsula North Korea could not allow UN Forces sea and air supremacy of the 1950`1953 War but also they could enjoy a unconventional warfare supremacy of nuclear weapon. In the 1950 Korean War, Republic of Korea Forces had suffered unmeasured difficulties because of the disparity of conventional weapons of North Korea such as T34 tanks and 122㎜ long-range guns, and now facing another difficulties arising from the asymmetric situation of unconventional warfare of nuclear bomb and missile matter that is the product of weak international sanctions system. As well known to the international society, ROK has kept international regulations truthfully such as IAEA Agreements, and resulted in big disparity in the area. While waiting more efficient and strong international sanctions prosecuted against North Korean illegal promotion of the unconventional weapon system, Republic of Korea is expected to enhance its efforts in strengthening US-Korea combined forces strategy and capabilities by linking highly advanced US communication system. North Korean nuclear threats should be challenged by rapid and accurate NCW(Nerwork Centered Warfare) or NCO(Network Centered Operation) system with the integral complex of C4ISR. It is in strong necessity for ROK to connect US highly advanced information collection and analysis system in challenging North Korean nuclear threat with adopting communicating system such as Link 16. Link 16 communication system of 20 Mbps(megabits per second) can connect infra-red satellites, Awacs airplane and naval or missile sites platforms for rapid responding nuclear weapons and long-range missiles. The other challenge Republic of Korea should concentrate its effort in countering the North Korean nuclear threat is located somewhere in the infra-red anti-missile devise development, and electronic intercepting system that could disorder electronic operations of the nuclear missiles. These two devises have been recognized as possible and efficient counter measures for the nuclear system at least theoretically.

벡터양자화에서 계산량과 압축률의 개선

정일화(Il Hwa Jung),홍충선(Choong Seon Hong),이대영(Dai Young Lee) 한국정보처리학회 2000 정보처리학회논문지 Vol.7 No.11

In this paper, new image vector quantization method for improvement computation cost and compression ratio is proposed. A proposed method could saved the computation cost of codebook generation and encoding using partial codebook search, partial codevector elements, and interruption criterion. And, to improve compression ratio of codebook index lossless coding, codebook rearrangement and variable length coding scheme are used.

미국과 영국의 교장 직전교육 사례 비교 분석

김이경(Kim Ee-gyeong),정일화(Jeong Il-hwa),김미정(Kim Mi-jung),김수아(Kim Su-a) 한국교육행정학회 2009 敎育行政學硏究 Vol.27 No.1

강변여과에서 여과거리에 따른 페놀, 1,4-다이옥산 그리고 다이아지논의 거동에 관한 실험연구

최홍규(Hong Gyu Choi),정일화(Il Hwa Jeong),정관수(Kwan Sue Jung),이영득(Young Deuk Lee),김승현(Seung Hyun Kim) 大韓環境工學會 2013 대한환경공학회지 Vol.35 No.6

복류수와 천변여과지 그리고 점차 여과거리가 짧아지고 있는 우리나라의 강변/하상여과 등이 가지는 미량오염물에 대한 저항능력을 평가하기 위하여 5 m 길이의 모래칼럼을 이용한 실험을 수행하였다. 실험결과 우리나라 하상의 토양은 유기물 함량이 상당하여 염소이온의 토양표면 흡착이 비교적 활발함 알 수 있었다. 페놀은 칼럼의 여과수에서 검출되지 않았고, 1,4-다이옥산과 다이아지논은 하상토양과 흡착반응을 일으키면서 이동하며, 2.5 m의 이동과정에서 1,4-다이옥산의 첨두농도는 유입농도의 약 40%로 그 농도가 감소하였고, 다이아지논의 첨두농도는 약 60%로 감소하는 것으로 나타났다. 실규모 설비에서는 여과거리가 5 m 보다 더 길기 때문에 첨두농도의 감소효과는 상당히 클 것으로 기대되었다. An experiment using a 5 m-long sand column was performed to evaluate the resisting capability against micro-pollutants of the infiltration gallery, multi-purpose filtration pond and riverbank/bed filtration, of which the filtration distance is becoming increasingly shorter in Korea. Results suggested that the Korean riverbed sand contained significant amount of organics, resulting in a relatively vigorous adsorption of chloride ion on the sand surface. Results also indicated that while phenol was not detected in the column filtrate, both 1,4-dioxane and diazinon were exposed to adsorption by the sand as they moved through the column, decreasing their peak concentrations during the movement. It can be expected that the peak concentrations will diminish significantly in the practical scale due to its longer travel distance.

DCT AC계수의 통계적 특성을 이용한 피라미드 벡터양자화에 관한 연구

정경섭(Kyung Sup Chung),정일화(Il Hwa Jung),이대영(Dai Young Lee) 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.6

RS3PE 증후군 1례

김미진 ( Mi Jin Kim ),김용태 ( Yong Tai Kim ),정일화 ( Il Hwa Jung ),송창호 ( Chang Ho Song ),이종인 ( Chong In Lee ),심영학 ( Young Hak Shim ) 대한류마티스학회 1999 대한류마티스학회지 Vol.6 No.3

RS3PE is used to describe patients who have peripheral seronegative polyarthritis and pitting edema, especially in a man older than 60. It is characterized by sudden onset, high sedimentation rate, lack of bony erosion, remission within 18 months and good prognosis. Whether the RS3PE is a unique disease or syndrome has long been discussed, but conclusion was not obtained. We describe a 72 year old man of RS3PE with a review of the literature.

가변블록과 DCT 분류기를 사용한 CVQ에 관한 연구

정일화,이대영 慶熙大學校 大學院 1994 高凰論集 Vol.15 No.-

The proposed CVQ method is based on a classification technique in the discrete cosine transform(DCT) domain. In this scheme, Less complex regions are segmented into variable sized blocks(4×4, 8×8) and high-detail regions are segmented into 4×4 blocks of various edge classes. And Quad-Tree(QT) method is used for block data transmition.

지식베이스를 이용한 영역이해에 관한 연구

金栢起,鄭日和,崔寅浩,李大寧 慶熙大學校 1994 論文集 Vol.23 No.-

본 논문은 지식베이스를 이용한 영역이해에 관한 것으로 영역지식원과 제어지식원을 분리, 영역 지식원을 특징량에 따라 계층적으로 모델링하여 시스템을 구현함으로써 화상의 이해율 및 지식원의 정합율을 향상시키고 검증처리속도를 개선하였으며 전문적인 경험적 지식의 집적화와 갱신이 가능하도록 하였다. In this paper, we present a region understanding method using knowledge base. we splited domain knowledge sources and control knowledge sources and implimented image understanding system modeled on domain knowledge sources hiearchically according to minutia. The purposes of this paper are to improve the understanding rate for images and the matching rate of knowledge sources and to advance the processing times for verification. Therefore, it is possible to integrate and renovate the technical heuristic-knowledge.

통신설비의 Pulse성 Nosie 현상 분석과 Noise 대책

崔寅浩,崔種和,金炯澈,李相寧,鄭日和,李大寧 慶熙大學校 1993 論文集 Vol.22 No.-

The use of electric-power-distribution circuits for communications is of continued and growing interest. Impedence, attenuation, and noise characterize any communication channel and are needed for design of digital communcation systems. The purpose of this paper is to present the method of Measurement and countermeasure of the temporal and spectral properties of the magnetic and electronic fields of radio noise that emanates from power lines.

RCV(Rated Composite Vectors)를 이용한 적응적 특징점 추출에 관한 연구

崔寅浩,金炯澈,李相勳,鄭日和,李大寧 慶熙大學校 1995 論文集 Vol.24 No.-

The dominant point detection is an effectual step on pattern recognition, feature description, and ogject reconstruction. In this paper, we propose a novel measurement of curvature along tje digital planar curve. We call it the rated composite vectors for cosine(RCV-cosine) measurement because of the analogy to the k-cosine measurement advocated by Rosenfeld for describing angle detection. We define the RCV as a composite vector obtained by iteratively and adaptively rating the vectors described in our algorithm. We estimate "angle" with RCV replacing a fixed window size k for cosine measurement. For each point in the curve we find both left and right RCVs that are similar to left and right tangents, and thus calculate the angle, called RCV-cosine value, between two RCVs through cosine measurement. The dominant points are obtained by local maximum of RCV cosine values. The proposed algorithm is robust on raw synthetic images and extracts the dominant points effectively and correctly. We present several experimental results and illustrate that our approach is invariant to translation, rotation and slight scaling, and it is closer to human percption.