용융탄산염연료전지용 Ni-Al anode의 젖음성

박권필 순천대학교 공업기술연구소 1995 工業技術硏究所論文集 Vol.9 No.-

Wettability of Ni-Al anode for molten carbonate fuel cell was studied at MCFC anode condition. Meniscus effect was measured by cyclic voltametry in -950~-160mV range and meniscus height was measured at in situ condition. Wettability of Ni-Al anode in molten carbonate(Li/K, 62/38) was larger than that of pure Ni anode. It was seemed that increase of the wettability of Ni-Al anode resulted from LiAlO_2 formation.

미역 폐기물을 이용한 시안 폐수의 처리에 관한 연구

우명우,박권필 順天大學校 1999 論文集 Vol.18 No.1

Cyanide wastewater treatment by brown seaweed wastes was studied. From these results we can conclude that most of cyanide in wastewater can be removed by seaweed. Even though longer reaction time required to attain certain level of cyanide removal, using brown seaweed can be an alternative method. Compared to calcium hydroxide treatment, seaweed shows lower removal capacity to that of calcium hydoxide by the factor of 0.7. and reaction time increases by two.

연구원 활동 : 발표논문요약 ; < 화학공학분야 >

(Gwun Pil Park),(Hai Soo Chun) 고려대학교 공학기술연구소 1996 생산기술연구소보 Vol.3 No.-

Development of a residual gas analyzer utilizing Time-of-Flight mass spectrometry

Byung Gwun Jin,Yong Ju Lee,Sung Jun Lee,Jeong Hun Kim 한국진공학회 2021 한국진공학회 학술발표회초록집 Vol.2021 No.2

Over decades, residual gas analyzers (RGAs) have been developed extensively from analytical research to industrial fields. As semiconductor industry is growing rapidly, fast detection of residual gases becomes important for improvement of the fabrication process. High performance, such as rapid scanning and fine resolution with high sensitivity, and compactness are required for industrial applications. In this work, a Time-of-Flight (ToF)mass spectrometry for fast analyzation of injected gas in real time with an electron impact ionization device has been developed and will be presented.

A Study of the Logistics Development in Hai Phong Port

Dae-Gwun Yoon,Thi Bich Thuy Doan 한국항해항만학회 2018 한국항해항만학회지 Vol.42 No.2

Vietnam is entering an important phase of urbanization that corresponds to the current economic development. Developing logistics of Vietnam in general, and Haiphong particularly, is urgent in order to meet the need for the economic development of Viet Nam in this period of international integration. Hai Phong’s development record over the past 20 years is remarkable. In conjunction with the local government’s efforts, external factors, such as increasing direct foreign investment, is turning Hai Phong into Vietnam’s logistics hub. However, even though Hai Phong accounted for 98% of North Vietnam’s throughput, its logistics services are low level, the ports are fragmented, and the port management scale is backward, with the legal system overlapping. This paper has systematically evaluated the development of Haiphong city during recent years, then offers some solutions to develop logistics for Hai Phong ports.

고속 광선 추적법을 위한 멀티프로세서에서의 부하분산방식

권오봉(Gwun Ou bong) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.5

Ray-tracing algorithm can synthesize photo-realistic image, but its computational cost is very high. Fast image synthesis based on ray-tracing is one of the most important topics in computer graphics. There are two methods for high speed ray-tracing: One is based on algorithm, and the other is based on multiprocessor. We need balanced load distribution to utilize multiprocessor for high speed ray-tracing. First this paper discusses various load distribution and scheduling of multiprocessor for high speed ray-tracing. Then this paper proposes load distribution strategies based on them, implements and evaluates it on multiprocessor. The experment results show that the proposed method can solve the unbalanced load problem of dynamic load distribution, and scan line method and dot method among a kind of static load distribution strategies disperse the load efficiently.

일반논문 : 재정분권이 지역경제성장에 미치는 영향 분석: Vo의 재정분권지수를 중심으로

홍근석 ( Gwun Seok Hong ) 한국지방행정연구원 2013 地方行政硏究 Vol.27 No.2

이 연구는 Vo의 재정분권지수(FDI)를 적용하여 지방정부의 재정적 자율성에 따라 재정 분권의 효과성이 달라지는지의 여부를 파악하고 있으며, 이를 통해 재정분권과 지역경제 성장 간의 관계에 대한 보다 명확한 결론을 제시하고 있다. 분석결과 전통적 재정분권 지표를 사용한 모형의 경우 재정분권은 경제성장에 부(-)의 영향을 미치는 것으로 나타났으며, 이러한 부(-)의 영향은 통계적으로 유의하지 않게 나 타나고 있다. 반면에 Vo의 재정분권지수(FDI)를 사용한 모형의 분석결과 재정분권은 지역 경제성장에 정(+)의 영향을 미치는 것으로 나타났다. 이 연구의 결과에서 나타난 것처럼 재정분권이 지역경제성장에 어떠한 영향을 미칠 것 인지의 여부는 재정분권을 수행하기 위해 설계된 제도의 적절성에 따라 달라질 것이다. 즉, 재정분권이 지방정부에게 세입·세출에 대한 실질적인 자율성을 제공하는 방식으로 이루어지는 경우 재정분권은 지방정부 간 경쟁을 통해 자원배분의 효율성을 향상시키고 궁극적으로는 지역경제성장에 기여할 수 있게 될 것이다. This study analyzes whether the effects of fiscal decentralization are changed by local governments` fiscal autonomy through applying Vo`s fiscal decentralization index(FDI). It also provide more apparent conclusion for the relationship between fiscal decentralization and economic growth. The results demonstrate that fiscal decentralization affects economic growth negatively by the model in which uses traditional indicator, although this negative effect is not statistically significant. On the contrary, the result that uses the Vo`s FDI index reveals that fiscal decentralization has positive effect to economic growth. As the result from this study explains, the effect of fiscal decentralization to economic growth depends on the appropriateness of institution that is designed to perform fiscal decentralization. In other words, when the fiscal decentralization provides practical autonomy of tax revenue and expenditure to local government, it will increase the efficiency of resource allocation through competition among local governments that will eventually contributes economic growth of local government.

이하선 종양에 관한 임상적 고찰

공권오(Gwun O Gong),김중규(Jung Gyu Kim),최경현(Kyung Hyun Choi) 대한두경부종양학회 1997 대한두경부 종양학회지 Vol.13 No.2

Parotid tumors constitute about 70 to 80% of all salivary tumors. Two thirds of parotid neoplasms are benign. Women are affected more often than men. Plemorphic adenoma or benign mixed tumor is the most common parotid neoplasm, accounting for 50% of all parotid tumors. The clinical presentation is a discrete, slowly enlarging mass, rarely accompanied by pain or facial paralysis. We reviewed 69 cases of the parotid tumors admitted and treated at Department of Surgery, Kosin University Hospital from Jan, 1970 to June, 1994. The results were as follows: 1) Over all sex ratio was 1 : 1.56(M : F). The sex ratio of benign and malignant tumor was 1 : 1.43(M : F) and 1 : 2.2. 2) The mean duration of symptom was 4.6 years. 3) In the peak incidence of age, Benign tumor was in 4th decade, malignant tumor was in 2nd decade. 4) The chief complaint was painless palpable mass in 65 cases(94%) and pain in 4 cases(6%). 5) The mean size of mass was 2.5cm in diameter and the ratio of lesion site was 37 : 32(Rt : Lt). 6) Superficial parotidectomy was the most common procedure(43%). 7) According to histopathologic findings of 69 cases, Benign tumor was 56 cases(81%) and malignant tumor was 13 cases (19%). In the benign cases, pleomorphic adenoma was the most common(44 cases(65%)). In the malignant, mucoepidermoid ca. was the most common(5 cases (37%)). 8) Postoperative complication occured in 9 cases(13%), facial palsy was in 7 cases, and wound hematoma was 2 cases.

Affiliated Coordination of Rescue and Salvage in ASEAN+3

Dae-Gwun Yoon 한국항해항만학회 2009 한국항해항만학회지 Vol.33 No.2

On May 12th, 2007 a merchant vessel of Golden Rose (South Korea) sank into near 38 mile from Yentai in China ofter the vessel collided with a container vessel of jinsung (China), leaving all 16 sailors, including seven South Koreans, missing. According to the official report, The Chinese vessel, authorities, and South Korean government did not coordination of rescue and salvage for the sailors and vessel properly as follows; 1) The Chinese vessel left the scene without rescue and salvage of the sailors, 2) Chinese authorities failed to comply with law of the sea that required them to report the collision to South Korea immediately after confirming the accident, and 3) The South Korean government is also being criticized for its slow response to the incident since the government did not set up a response team until 21 hours cfter the incident. In order to reduce this number of sailor missing in future incidents, this research is studied regarding assembling corferences, assigning SRR in ASEAN+3, simplicity to enter other territory waters and cooperative training and education for the SAR.

The Paradox of Productivity and Transmission Mechanism of Productivity

Byung Gwun CHOY(최병권) 한국혁신학회 2019 한국혁신학회지 Vol.14 No.4

본 논문은 생산성의 전달기구를 설정하여 생산성 역설 논쟁을 분석하려는 제3의 견해이다. 생산성 전달기구와 이 전달기구를 중심으로 만들어진 연립방정식 모형에서 digital transformation에 대한 투자가 생산성에 미치는 효과를 분석하였다. 추정결과 첫째, 생산성 전달과정의 불연속이 생산성 역설의 원인이 될 수 있음을 발견하였다. 특히 digital transformation과 노동자의 재교육 과정의 단절이 생산성 역설을 유발할 수 있음을 계량적으로 확인하였다. 둘째, digital transformation 투자, 인적자본, 노동자의 교육 및 재교육, 경제성장, 생산성 변수 등 생산성 전달기구 중심으로 구성한 연립방정식모형 추정에서 digital transformation 투자가 생산성에 미치는 통계적으로 신뢰할 수 있는 효과를 발견할 수 없었다. 따라서 본 논문은 2018년 러시아에서 생산성 전달과정의 불연속으로 digital transformation 투자에 대한 생산성의 역설을 발견하였다. By building the transmission mechanism of productivity, this paper analyzes the effect of investment in digital transformation on productivity. The productivity estimation model is established as simultaneous equations system centered on this transmission mechanism. First, this paper finds that discontinuities in the productivity transmission mechanism can cause productivity paradoxes. In particular, it is confirmed econometrically that the cut off of digital transformation and worker education processes could cause productivity paradoxes. Second, it is not possible to find the statistically reliable effect of digital transformation investment on productivity in estimating the simultaneous equation model composed mainly of productivity transmission mechanism such as digital transformation investment, human capital, worker education and reeducation, economic growth, and productivity variables. Therefore, this paper finds the productivity paradox for digital transformation investment in Russia in 2018 due to the discontinuity of the productivity transmission mechanism.