금융거래정보 활용을 통한 과표양성화 제고방안

김재진,김진수 한국세무학회 2006 세무학 연구 Vol.23 No.4

김재진*김진수**

전력 변환 반도체용 히트파이프식 냉각기의 설계와 성능실험

강환국,김철주,김재진 기계기술연구소 1999 성균관대학교 논문집 기계기술편 Vol.1 No.1

A heat pipe heat sink device, which is to evacuate a maximum heat of about 1800W from a power semiconductor was designed. The collling device was composed of a Cu block (130×160×35mm), 4 PFC heat pipes ofØ=22.23mm and 126 Al fins (250 ×58×-0.8mm). Its prototype was fabricated at Daehong Co. and submitted to performance tests. Experimental data obtained at a power of 1∼2kW, revealed that the total resistance of the device varied 0.02∼0.018 ℃/W along with increasing air velocity from 2 m/s to 3 m/s. The result represents a good satisfaction of requirement condition : to maintain temperature rise of semiconductor lower than 49 ℃ at 1800 W and air velocity of 3m/s. Some other important resistances such as convective resistances at both fins and heat pipes showed good agreement between mathematical predictions and measurement data.

1,1,1 - 삼염화에탄의 합성공정개발

김재진,이화영,이기준,강희동 한국화학공학회 1976 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.14 No.3

염화비닐 합성공정의 부산물로 생산되고 있는 1,1,2-삼염화에탄을 接觸分解하여 염화비닐리덴을 만들고 이 과정에서 생산되는 염화수소 가스를 이용하여 염화비닐리덴으로부터 1,1,1-삼염화에탄을 합성하는 공정에 대하여 연구하였다. 1,1,2-삼염화에탄의 분해에 사용된 촉매는 활성탄에 擔持시킨 鹽化바륨 및 鹽化銅으로서 20∼30% 염화바륨 담지촉매가 염화비닐리덴의 선택도에 가장 좋은 결과를 보여주었다. 반응온도 400∼500℃ 범위에서 염화비닐리덴의 선택도는 최고 35%까지 얻을수 있었다. 1,1,1-삼염화에탄의 합성에는 Friedel-Craft 촉매를 사용하였으며 1,1,1-삼염화에탄의 합성 반응은 염화수소 가스를 계속해서 과잉으로 공급할때 염화비닐리덴의 농도에 대하여 一次 반응이며 0.6%의 촉매농도 범위에서 촉매농도에 비례하는 것을 확인하였다. A process is developed for the synthesis of 1,1,1-trichoroethane from 1,1,2-trichloroethane, a byproduct produced in the vinyl chloride process. Catalytic dehydrochlorination of the 1,1,2-trichloroethane produces vinylidene chloride, 1,2-dichloroethylene and hydrogen chloride of these vinylidene chloride and hydrogen chlo ride react subsequently to form the 1,1,1-trichloroethane in a Friedel-Craft catalytic process. Barium chloride or copper chloride of 5 to 30 percent by weight supported on the activated carbon is used as catalyst. The selectivity for vinylidene chloride is attained up to 35 percent in the reaction temprature range of 400℃ to 500℃ using 20 to 30 percent barium chloride catalyst. It is also confirmed that the synthesis of 1.1.1-trichloroethane is a first order reaction with respect to the concentration of vinylidene chloride when excess hydrogen chloride gas is bubbled continuousley into the catalytic slurry reactor, and its rate is linearly proportional to the concentration of anhydrous aluminum chloride catalyst.

구제역(FMD) 발병과 방역에 관하여

김재진 慶北大學校 農業開發大學院 2001 最高農業經營者課程 論文集 Vol.7 No.-

사과 수출 증대에 관한 조사 연구

김재진,나경수 경북대학교 1971 生産技術 Vol.5 No.-

Korea has exported 2~3per cent of her total apple product. And to earn dollars through increase in export is the most urgent task that Korean Economy faces. This research plans to find out bottlenecks of apple export and to build strategies to open up a new export market. In 1969, the loss pertaining to the apple export to Taiwan was 70~80 won per box and the loss to Singapore and Hongkong was 400~700won per box, and the losses were offset by the import o bannana amounting as much as 40 per cent of total export. This 40 per cent compensation seems not enough increase of export to Singapore and Hongkong. Retail price of bannana in Korea is several times as high as import price, because of the imposition of tariff as high as 60% and special tariff as high as 90%. So it is recommendable to increase the rate of compensation to more than 60% and to decrease the rate of tariff, in consideration of that the export price of Korean apple is higher than that of the competing countries. Hongkong market and Singapore market are flooded with the cheap apples of mainland China, and no rooms for Korean apples to go in. We can not expect any sudden increase in apple export to Taiwan. But if both governments try to increase the amount of trade in terms of reciprocal trade, it must be hopeful. Philippine is the best market for Korean apple. Since last year philippine government has set some limitation to apple import. But if our government try to negotiate with Philippine government it may be possible to export as much as 300,000~500,000boxes. The best way to export our apples to Vietnam is to let U.S.Army buy them. The ideal method of keeping freshness is to establish cold-chain system. But the most urgent administrative task is to cut short the terms of export procedure from 13~26 days of present day to 10~15 days, and to build a refrigerated store house as wide as 1,000 Pyong(坪) around shipping area. It is also necessary to inspect strictly right before shipping. It is also recommendable to lend the Export Industry Fostering Fund to apple traders with the interest as low as 6% a year.

콤포넌트 맵핑을 위한 합성 알고리즘에 관한 연구

김재진,이사원 한국컴퓨터정보학회 1998 韓國컴퓨터情報學會論文誌 Vol.3 No.4

韓國의 經濟發展이 그 雇傭量과 實質所得에 미친 影響에 關한 硏究

金載珍 慶北大學校 師範大學 地理敎育科 1967 敎育硏究誌 Vol.7-8 No.-

Recently Korea achieved a spectacular progress in economic growth. This essay is an outline study of various effects which were brought about in the process of the development. And the following are main contents of the essay. 1) The economic growth and the distribution of national income. 2) The increase in productivity and the distribution of its fruits. 3) The relationship among economic growth rate, the increase in employment, and productivity. 4) The trends of national income, total employees' real payment, regular employment and real wages. 5) The present condition of wages. Generally speaking of the conclusion, recent Korean economic growth brougtht substantial decrease in real wage per labor·But this undesirable aftermath of rapid industrialization was covered by an astounding increase in employment, accompanied by an increasing gap in income distribution. These all show that Korea is in her first stage of capital accumulation. It is quite natural that these phenomena are found in an overpopulated country like Korea. What is most needed in this situation is to fulfil social justice and fair opportunities for all participant in this development effort.

수온, 페놀 및 납에 대한 펄조개의 내성 실험

김재진,Kim, Jae-Jin 배재대학교 자연과학연구소 1999 自然科學論文集 Vol.11 No.1

한강의 밤섬 일대에 서식하고 있는 펄조개(Anodonta woodiana)의 수온, 페놀 및 납에 대한 내성을 알아보았다. 그 결과 펄조개의 치사수온은 $37-38^{\circ}C$였으며, 페놀에 대한 $LC_{50}$은 1200 ppm, 납에 대한 $LC_{50$=220 ppm 으로 조사되었다. This study was carried out to determine the lethal water temperature and lethal concentrations of phnol and lead on Anodonta woodiana collected from Bam islet in Han river, Seoul, Korea. Lethal temperature$(LT_{48,50})$ on a woodiana was $37-38^{\circ}C$, and lethal concentrations$(LC_{50})$ of phenol and lead nitate were 1200 ppm and 220 ppm, respectively.

한외여과막을 이용한 수용성 함유 세척수의 처리

김재진,김종표,정건용,전성덕 대한환경공학회 1996 대한환경공학회 학술발표논문집 Vol.1996 No.12

시간 제약 조건 하에서 저전력을 고려한 CLB구조의 CPLD 기술 매핑 알고리즘

김재진,김희석 대한전자공학회 2002 電子工學會論文誌-SD (Semiconductor and devices) Vol.39 No.8

본 논문은 시간 제약 조건 하에서 저전력을 고려한 CLB 구조의 CPLD 기술 매핑 알고리즘을 제안하였다. 제안한 알고리즘은 DAG로 구성된 회로에 대하여 각 노드들의 TD와 EP를 계산하여 분할함으로서 저전력을 수행하였다. 또한 CLB의 구조에 따라 매핑 할 수 있는 조건으로 입력과 출력의 수, OR-텀수를 고려하여 시간 제약 조건에 맞도록 매핑 가능 클러스터를 생성한다. 매핑 가능 클러스터들 중에서 저전력의 기술 매핑이 되도록 출력의 수가 가장 적은 매핑 가능 클러스터를 우선 매핑하고 시간 제약 조건에 만족하는 매핑 가능 클러스터를 선택하여 매핑 한다. 제안된 알고리즘을 벤치마크에 적용하여 실험한 결과 기존의 알고리즘인 DDMAP에 비해 46.79%, TEMPLA에 비해 24.38% 감소된 결과를 나타내었다. In this paper, we proposed a CLB-based CPLD technology mapping algorithm for power minimization under time constraint in combinational circuit. The main idea of our algorithm is to exploit the "cut enumeration and feasible cluster" technique to generate possible mapping solutions for the sub-circuit rooted at each node. In our technology mapping algorithm conducted a low power by calculating TD and EP of each node and decomposing them on the circuit composed of DAG. It also takes the number of input, output, and OR-term into account on condition that mapping can be done up to the base of CLB, and so it generates the feasible clusters to meet the condition of time constraint. Of the feasible clusters, we should first be mapping the one that has the least output for technology mapping of power minimization and choose to map the other to meet the condition of time constraint afterwards. To demonstrate the efficiency of our approach, we applied our algorithm to MCNC benchmarks and compared the results with those of the exiting algorithms. The experimental results show that our approach is shown a decrease of 46.79% compared with DDMAP and that of 24.38% for TEMPLA in the power consumption.