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RISS 인기검색어
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- 저자 : 김문기(Kim Moon-Ki) (검색결과 247 건)
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김문기,고재군,김현욱,Kim, Moon-Ki,Koh, Chae-Koon,Kim, H. U. 한국농공학회 1982 한국농공학회논문집 Vol.24 No.1
Engineering phase of dairy housing systems has close connection with the milk produc- tivity of dairy cattle, the quality of milk, extension of dairy production systems, labor- saving in management of dairy cattle and the like. Moreover, the rate of investment of dairy housing facilities is of relatively high level, However, there has been almost no research effort for the improvement of engineering aspects of dairy housing systems in Korea. The purpose of this study is to find out general engineering problems and to recomm- end the improvement in dairy housing systems in Korea. Field survey by means of questionaire, direct measurements, taking pictures and sketching was conducted to get necessary information for the study. Kyung-ki Do region was firstly chosen for sampling area since it has included more than half of the number of dairy farms of the whole country. The results obtained are summarized as follows: 1. In overall dairy farm layout, the dwellings of workers were ignored in the light of sanitary environment 2. The layout of stalls in a dairy barn belongs mostly to the type of double-row face-out, which is compatible with the emphasis of manure disposal activities. 3. While the width and length of stalls were sufficiently close to the standard dimension, the width of mangers was much less than the standard dimension. 4. The width and depth of manure gutters and the width of working alleys were much. less than the standard dimension. 5. The mooring equipment was mostly in the classes of chain or rope. The watering equipment was not facilitated independantly except the one cese of using watercup. 6. The bucket milkers with one or two bucket milkers with the capacity of two cattles. each were used as milking equipment in most dairy farms. 7. There were only few milk rooms independently spaced from other space, in which the arrangement of milking equipment was much less than the standard condition. 8. The lounging ground area was averaged to be sufficient for the activity of dairy herd. 9. Silos for silage used during winter consisted of mostly bunker silos, trench silos and underground vertical silos. Ordinary vertical silos were considered for the farmers to be inconvenient for the labor saving. 10. From the view point of heat conservation and moisture removal within the dairy barns, windows were not flexible for the easy ventilation and ceiling part was not adequate for temperatur maintenance. 11. Waste treatment and disposal systems were not provided with most dairy farms, therefore the livestock waste pollution problems would be serious in the near future.
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유한요소법(有限要素法)에 의(依)한 Telescope Denture의 지대치(支臺齒) 및 지지조직(支持組織)의 역학적(力學的) 반응(反應)에 관(關)한 연구(硏究)
김문기,최부병,Kim, Moon-Ki,Choi, Boo-Byung 대한치과보철학회 1984 대한치과보철학회지 Vol.22 No.1
The purpose of this study was to analyze the magnitude and mode of the stress distribution induced in the supporting alveolar bone and periodontal ligament and, to determine the displacement of abutment teeth and telescope denture base by applying chewing force to the telescope denture quantitatively and qualitatively. Two finite element models of telescope denture that were restored the missing mandibular second molar with two abutment teeth which were constructed. In two different models, parallel and tapering type telescope crowns were constructed. These finite element models of two cases used for these experiment were a two-dimensional mesiodistal section of the mandibular second bicuspid and first molar. Chewing force of 25Kg that was devided in the ratio of 45/155 (29%) in bicuspid and 55/155 (35.5%) in molars was applied to telescope denture and abutment teeth respectively. The displacement of the telescope denture base and abutment teeth and the stress distribution in the periodontal ligament and alveolar bone were analized to investigate the influence of chewing force acting on the telescope denture and abutment teeth. The results were as follows: 1. Abutment teeth displaced mesially and the magnitude of displacement of abutment teeth in vertical direction were more than that of horizontal direction in two cases. The displacement of abutment teeth on the telescope denture treated with tapering type telescope crown were less than that of the parallel type crown. 2. The displacement of the telescope denture base that were treated with parallel type telescope crown were less than that of treated with tapering type telescope crown. 3. The stress induced in the alveolar bone and periodontal ligament on abutment teeth that treated with parallel type telescope crown were more than that of treated with tapering type telescope crown and more stress induced in the alveolar bone than in the periodontal ligament. 4. In the telescope denture, the magnitude of displacement of abutment teeth and stress induced in the periodontal ligament and alveolar bone were within physiologic limit.
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김문기,Kim, Moon-Ki 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.4
This paper describes Monte Carlo Simulation(MCS) to assess the uncertainty of dynamic pressure calibrator and the expanded uncertainty results that were compared by GUM approximation and MCS. MCS uncertainties were computed using defining a domain of possible inputs, generating inputs randomly using probability distribution, performing a deterministic computation repeatedly and aggregating the results. It was revealed that the expanded uncertainty between GUM and MCS was different from each other. the expanded uncertainties were 0.5366%, 0.4856%, respectively. MCS is a suitable method for determining the uncertainty of simple and complex measurement systems. It should be more widely used and studied in measurement uncertainty calculations.
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‘송어(松魚)’는 왜 ‘연어(鮭)’가 되었나?: 근세 朝·日 어류지식 교류의 일면
김문기(Kim, Moon-Ki) 부산경남사학회 2020 역사와 경계 Vol.117 No.-
이 글은 “조선의 송어(松魚)는 왜 일본에서 연어(サケ)가 되었는가?”라는 질문에 대한 대답을 찾아가는 과정이다. 일본에서 연어의 한자명은 10세기를 전후하여 『신찬자경』과 『연희식』에서 ‘규(鮭)’라고 했던 것에서 등장한다. 이에 대해 『본초화명』과 『화명류취초』에서는 ‘규’는 잘못된 것으로 ‘쟁(鮏)’이 옳다고 함으로써, 둘 사이의 오랜 논쟁이 시작되었다. 17세기 초반에 『본초강목』이 유입되면서 일본의 박물학이 발전했다. 하야시 라잔은 『다식편』에서 『본초강목』의 ‘궐어(鱖魚)’를 연어라고 했다. 연어의 한자명을 두고 규(鮭), 쟁(鮏), 궐(鱖)이 경쟁했다. 17세기 후반에는 『동의보감』이 전해지면서 일본 박물학은 다시 생기를 띄었다. 1711년 신묘사행에서 이노 쟈쿠스이가 ‘연어(鮏)’를 물었을 때, 조선학자들이 ‘송어(松魚)’라고 대답했다. 이노 쟈쿠스이가 이것을 의심 없이 받아들이면서, 일본에서는 조선의 ‘송어(松魚)’를 ‘연어(サケ)’라고 하는 전통이 생겼다. 한편 ‘송어(マス)’에 대해서, 일본에서는 일찍부터 ‘준(鱒)’이라고 했다. 가이바라 에키켄은 『동의보감』의 ‘송어(松魚)’를 가다랑어(カツヲ)라고 했다. 이에 따라, 조선의 ‘송어(松魚)’는 한편으로는 연어(サケ)로, 다른 한편으로는 가다랑어(カツヲ)로 인식되었다. 연어와 송어의 한자명을 둘러싼 논쟁이 『동의보감』의 유입으로 한층 복잡하게 전개되었던 것이다. 연어와 송어라는 물고기의 한자명을 중심으로 살펴보았지만, 에도시대 일본학자들의 중국 어류에 대한 변증을 훑어보면 대부분이 오류라는 사실을 확인할 수 있다. 이처럼 물고기 이름은 그 자체로 나름의 지층과 역사를 지닌다. 문제는 이렇게 형성된 한자명이 오히려 과거의 기억을 왜곡시키기도 한다는 데 있다. 이 시대에도 여전히 어류의 한자명을 둘러싼 ‘지식의 고고학’이 필요하다. This article attemps to find answers to “why did Song-eo (松魚, Cherry Masou) of Joseon become known as Sake (鮭, Chum Salmon) in Japan”. The term ‘Sake (Chum Salmon)’ in Chinese character in Japan appears around the 10th century as ‘Gui(鮭)’ in Shinsen0jikyou (『新撰字鏡)』 and Engi-siki (『延喜式』) for the first time. With respect to this expression, there were long arguments coming from Honzo-wamyo (『本草和名』) and Wamyo-Ruichyusyo (『和名類聚鈔』) according to which that species should be called as ‘Zheng (鮏)’, instead of ‘Gui (鮭)’. The natural history of Japan was developed by the introduction of Boncao-gangmu (本草綱目』) in the early 17th century. Hayashi Razan, in his Tasikihen (『多識編』), translated ‘Gui(鱖)’ in Boncao-gangmu into ‘Sake (Chum Salmon)’. Henceforth, when it comes to the term for ‘Chum Salmon’ in Chinese character, there were three vocabulary worlds that could be adopted: Gui (鮭), Zheng (鮏), and Gui (鱖). Thanks to the introduction of Dongui-bogam (『東醫寶鑑)』, research on the natural history in Japan became more active. When Ino Jakusui asked scholars of Joseon about ‘Sake (鮏)’ on diplomatic missions in 1711, they responded that it was called ‘Song-eo (松魚)’. After Jakusui accepted this terminology without question, ‘Song-eo(松魚, Cherry Masou)’ has been generally considered as ‘Sake (Chum Salmon)’ in Japan. At the same time, ‘Masou (Cherry Masou)’ used to be called as ‘Zun(鱒)’ in Japan. Kaibara Ekiken suggested that ‘Sogn-eo (松魚, Cherry Masou)’ in Dongui-bogam signifies Katsuwo (Oceanic Bonito). Therefore, on the one hand ‘Sogn-eo (松魚)’ of Joseon was recognized as Sake (Chum Salmon), but on the other it was defined as Katsuwo (Oceanic Bonito). That is to say, this debate on terminology of Chum Salmon and Cherry Masou in Chinese character went on in complicated way by means of the introduction of Dongui-bogam. Even though this study takes a glance over terminological dispute about Cherry Masou and Chum Salmon, it can be said that Japenese scholors of the Edo period misunderconstrued Chinese fish in general.
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TinyOS 를 이용한 홈 네트워크용 실시간 조도 모니터링 시스템
김문기 ( Moon-ki Kim ),한병희 ( Byung-hee Han ),김지홍 ( Ji-hong Kim ),김용현 ( Yong-hyun Kim ),이수용 ( Soo-yong Lee ),홍윤식 ( Yun-sik Hong ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.1
TinyOS 기반 무선 센서 노드를 사용한 실시간 계측 데이터 측정 및 제어 기술은 특히 홈 네트워크 분야에 널리 적용되고 있다. 본 논문에서는 ATMega128L을 장착한 최소 8대 이상의 Micaz Mote 센서 노드 모듈을 사용하여 각 방의 조도 값을 실시간 측정하는 시스템을 구현하였다. 특히 TinyOS에서 제공되는 OscilloscopeRF의 메시지 구조를 분석하여, 각 노드의 ID및 계측 데이터를 추출하였다. 또한 이렇게 추출된 계측 데이터를 센서 네트워크의 싱크 노드로부터 데이터 통제 센터(Doc)로 효율적으로 전송하기 위한 TCP 기반 네트워크 프로그래밍을 구현하였다. 실험 결과 센서 노드 수 및 샘플링 주기에 상관없이 안정적으로 계측 데이터 수신이 이루어짐을 확인하였다. 한편, IEEE802.11a/g 기반 무선 네트워크를 통해 실시간 계측 상황을 휴대용 단말기인 PDA에서 확인할 수 있도록 이를 구현하였다.
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김문기(Moon-Ki Kim),유중학(Joong-Hak Yoo),윤영한(Young-Han Youn),국정한(Jeong-Han Kook),박종권(Jong-Kweon Park) 한국공작기계학회 1999 한국공작기계학회지 Vol.8 No.5
Chucking for workpieces is very important for productivity and efficiency in lathe operations. In point of productivity, top jaws of the chuck should be changed as quickly as possible in order to reduce idle times whenever workpieces are regripped. A quick change power chuck which can change top jaws quickly by using a jaw change handle without any assembly/disassembly processes of screws is analyzed for this study. Strength and stiffness of top jaws by centrifugal force are considered for the design. Structural analysis for the chuck is executed, and the finite element method is introduced using MSC/NASTRAN software. Also, the performance of the chuck is evaluted by experiments.
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