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김봉균 대구보건대학 2003 대구보건대학 論文集 Vol.23 No.-
A Korean translation of the original epitaph on the five-story pagoda at Gesim temple in Yecheon was done by correcting the errors of all records issued by Choseon Chong Dog Bu (Japanese Headquarter), and by footnoting. The main points of the epitaph are as follows: On March 3, 1010, King Hyeon Jong during Go Rye dynasty ordered to construct a pagoda at Gesim temple in order to set up a good stupa. At that time, about 10,000 Buddhist believers, military reserves, and farmers, as well as 1,000 cows with wagons participated in this construction. Thus, repay the Buddhist mercy to the heaven and establish righteous mind for the country, and wish to let the inculcation of Buddha spread to the rank-and-file in the earth. In the name of mother, Im Jang Bu, head of the village in Yecheon, erected the pagoda. It was erected in April, 1011.
液膜法에 의한 구리 및 코발트이온의 分離時 共存鹽의 影響
金柱奉,姜奉根,李成植,全成均 東亞大學校 大學院 1988 大學院論文集 Vol.13 No.-
The effect of co-existing salts on the extraction of copper ion with LIX65N and cobalt ion with PC88A in aqueous solution and the copper permeation through the supported liquid membrane with LIX65N has been studied. 1.The maximum extraction constant, K?? of copper ions was obtained when the mole ratio of LIX65N concentration versus the concentration of copper ions was 6-fold. 2.The over all extraction constant, k?? and distribution ratio, D were inceased linealy wiht increasing difference of final pH and initial pH in aqueous solution and were decreased with increasing concentration of co-existing anion salts. 3.The extraction of cobalt ion with PC88A-Toluene system, hydrogen ion concentration were increased wiht increasing of distribution ratio and D was increased linealy wiht increasing PC88A concentration. 4.The rate of copper permeation through the supported liquid membrane wiht LIX65N-Toluene system were increased with increasing of concentration of etractant and hydrogen ions between up-stream and down-stream solution. 5.The initial flux of copper ions was decreased wiht increasing concentration of co-existing salts both up-stream and down-stream solution.
金大均,鄭春炳,全基英,李丞煥,吳鳳煥,李勳九,金容珠,韓慶熙 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-
Since the residential load is an AC load and the output of solar cell is a DC power, the photovoltaic system needs the DC/AC converter to utilize solar cell. In case of driving to interact with utility line, in order to operate at unity power factor, converter must provide the sinusoidal wave current and voltage with same phase of utility line. Since output of solar cell is greatly fluctuated by insolation, it is necessary that the operation of solar cell output in the range of the vicinity of maximum power point. In this paper, DC/AC converter is three phase PWM converter with smoothing reactor. And then, feedforward control used to obtain a superior characteristic for current control and digital PLL circuit used to detect the phase of utility line.
김수관,김운규,김봉균,장현선 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6
The purpose of this study was to investigate the mean cranial bone thickness at various points of the bone and to serve as a clinical guide for choosing a bone graft. Twelve bones were obtained from 6 Korean adult skulls for this study. The mean bone thickness at each point of the 17 points of the bone and at the corresponding points of the opposite bone was obtained in all skulls studied. The thinnest part of the parietal bone was 5.92mm. The thickest part of the parietal bone was 7.58mm. The mean bone thickness at each point of measurements on two opposite bones was compared using the paired Student's t-test. The mean thickness did not differ significantly. The thickness in the same bone varied widely depending on the points of measurement.
고정층 액상흡착탑내의 합성흡착제/콜리딘계의 열역학적 흡착특성
이성식,김형준,이봉국,최정균 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.2
Adsorption Equilibria and Kinetics of collidine in a aqueous solution onto the synthetic resin adsorbent were carried out in a fixed bed absorber at 278, 288, 298 anti 308K for various concentration ranges respectively. The effective intraparticle diffusivity, D_(e), based on the concentration difference in the liquid phase, was determined by comparing experimental and theoretical uptake curves. The ratio of the effective diffusivity to moleculer diffusivity, D_(e)´/DAB were independent of the amount adsorbed and temperature for synthetic resin/collidine system. The result supported the concept that migrated of inter-microparticle gaps predominates over effective intraparticle mass transfer within synthetic porous adsorbent. Amount adsorbed q_(e) was correlated Q_(st) = 15.35 + [(-4.14) - q_(e)] and E_(a) = 6.28 + [(-1.671 q_(e)] with heat of adsorption(Q_(st)) and activation energy(E_(a)).
정보 시스템을 이용한 항공기 착륙요율 결정 사례 연구 : 잔액 보상 방식에 의한 착륙요율 결정 방법 중심
유광의,김봉균 한국항공운항학회 1998 한국항공운항학회지 Vol.6 No.1
The purpose of this research is to look for the best description of calculating the reasonable Landing Fee. Landing Fee is consisted one of major revenues for maintaining an airport. Traditional Landing Fee Rate has been charged based on the weight factor; Maximum take-off weight, Maximum landing weight, or Maximum authorized weight. To achieve a better reliable value of Landing Fee Rate, The elements of Noise and Peak-Time have to be considered as well as the aircraft weight. This research designs the algorithms for calculating Landing Fee Rate and also Landing Fee, based on the aircraft weight. The Network is also applied to above. That is, CGI(Common Gate Interface) is constructed to interface the terminal of calculating Landing Fee Rate, and the terminal of collecting and transmitting the data such as the Weight. The computer language on the CGl was made by C++ and PERL. The main point of this research is to integrate the airport and Information System and to construct the database which is based on the different perspective of calculating Landing Fee Rate. However, the result of the most efficient and reliable will be computed based on above. This research will broaden the range of application up to the each case of airports.
류정호,주병수,김봉균,임준우,이덕동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
A sensibility measurement system that can measure human sensibility at the automobile cabin environment is developed in this paper. Five kinds of sensors that can measure temperature, humidity, oxygen, CO_(2), and HC gas concentrations are used in this system. Sensibility indexes are defined for each sensor datum, and then those are linearly combined to make a total human sensibility index. A stand-alone system is manufactured using a one-chip microprocessor, and simple controls are showed with LEDs. This system was tested for performance in automobile cabin environment and showed good reliability.
( Bong Jin Ko ),( Young Seok Kim ),( Sang Gyune Kim ),( Jung Hwan Park ),( Sae Hwan Lee ),( Soung Won Jeong ),( Jae Young Jang ),( Hong Soo Kim ),( Boo Sung Kim ),( Sun Mi Kim ),( Young Don Kim ),( Ga 대한간학회 2016 Gut and Liver Vol.10 No.5
Background/Aims: Deficiencies of 25-hydroxyvitamin D (25(OH)D) are prevalent in patients with chronic liver disease (CLD). Liver fibrosis is the main determinant of CLD prognosis. The present study was performed to evaluate the correlation between 25(OH)D levels and liver fibrosis as assessed by transient elastography (TE) in patients with compensated CLD. Methods: Serum 25(OH)D levels and liver stiffness were determined in a total of 207 patients who were subjected to the following exclusion criteria: patients with decompensated CLD; patients who had malignancies; patients who were taking medications; and patients who were pregnant. Results: The most common etiology was chronic hepatitis B (53.1%). Advanced liver fibrosis (defined by TE [≥9.5 kPa]) was present in 75 patients (36.2%). There was a significant correlation between 25(OH)D deficiency and liver stiffness. Based on the multivariate analysis, the following factors were independently associated with advanced liver fibrosis: 25(OH)D deficiency (odds ratio [OR], 3.46; p=0.004), diabetes mellitus (OR, 3.04; p=0.041), and fibrosis-4 index (OR, 2.01; p<0.001). Conclusions: Patients with compensated CLD exhibit a close correlation between vitamin D level and liver stiffness as assessed by TE. Vitamin D deficiency was independently associated with advanced liver fibrosis. (Gut Liver 2016;10:818-825)
High Performance Steel Girders with Tubular Flanges
Bong-Gyun Kim,Richard Sause 한국강구조학회 2005 International Journal of Steel Structures Vol.5 No.3
fatigue tests on full-scale stel orthotropic deck panels prior to the final design and production of replacement panels. Duringthe first test program, a protype and an as-built section were tested. Fatigue cracking was detected at several types of fatiguesensitive welded conections, resulting in design changes, repair procedures, aditional testing. Ultimately, this research led toa revision of the AASHTO LRFD design specifications on steel orthotropic decks. During the second test program, a prototypein other connections where stresses were high as a result of the extreme axle loads that were simulated. Evaluations were madeof the behavior, fatigue resistance, and adequacy of connection details applied to both test decks.