Vanadium 을 첨가한 고장력강의 기계적 성질에 관한 연구

김용규,김상주,이후철,윤종규 대한금속재료학회(대한금속학회) 1979 대한금속·재료학회지 Vol.17 No.3

본 실험은 Vanadium의 첨가량과 소려온도의 변화에 따른 저탄소 Vanadium강의 기계적 성질의 변화를 조사한 것이다. Vanadium첨가량은 0∼0.16%까지 변화시켜 보았으며, 그 결과 0.106%까지는 첨가량이 증가할수록 경도, 인장강도, 항복강도, 내마멸성 등이 개선되였으나 0.16%에서는 기계적 성질이 더 이상 개선되지 않았다. 또한 소려온도는 500℃, 600℃, 700℃로 변화시켰으며, 기계적 성질은 600℃에서 가장 좋았다. 소입 및 소려된 Vanadium강에서의 Vanadium 탄화물의 석출은 전위 및 폐라이트 기지 내에 불규칙하게 분포되어 있었으며 기계적 성질의 개선은 이들 탄화물에 의한 입자의 미세화 및 전위의 고착, 전위 이동의 방해 등에 기인되는 것으로 보여진다. Effect of vanadium contents and tempering temperature on the mechanical properties of low carbon vanadium steel was studied with V content ranging from zero to 0.16% and tempering temperature of 500℃, 600℃ and 700℃. As the results, hardness, tensile strength, yield strength and wear resistance were increased with the increase of vanadium content and the maximum value was shown when 0.106% of vanadium was added and tempered at 600℃ for 1 hr. Vanadium carbides were dispersed in ferrite and randomly precipitated at dislocation sites. The improvement of the mechamical properties was interpreted in terms of grain refinement and locking of dislocations due to vanadium carbides.

거래비용이론을 이용한내부화에 관한 문헌연구

김용규 안양대학교 1996 논문집 Vol.16 No.-

When firms produce for selling products to consumers, They must make decision whether they use integrated distribution channel accomplishing all marketing functions by firms' sales force using internal organization, or an independent distribution channel delegating distribution function to independent middle agent. Theoretical approach methods about distribution channel style use transaction cost analysis model mainly. The basic condition of transaction cost theory is that firms internalize distribution function to pay low cost, but distribution function to pay high cost is dependended on market on account of imperfection of market structure due to market failure. Williamson makes use of asset specificity, uncertainty, and transactional frequency concept by means of transaction cost measurement. The central purpose of this research systematizes and arranges former study on distribution channel's decision used transaction cost theory through reviewing the relevant literature. And also presents the problem of literature review and the study direction of the future.

전파모델 연구를 위한 데이터 분석 모듈 개발

김용규 聖潔大學校 情報産業技術硏究所 1999 情報産業技術論叢 Vol.4 No.-

In order to provide various communication service, it is required to measure and analysis of field data so that propagation characteristics can be properly applied. This paper proposes a software tools that is used for analysis of measuring data that come from various device and format. By the proposed tools, analysis process can be standardization. In this tool, all process modules are merged into single application environment, so that efficiency and robustness are improved. The proposed modules are easily linked to previous analysis module.

육필(肉筆)로 쓴 대하(大河)드리마 : 연재 1회 ; 풍랑의 꽃

김용규 평화문제연구소 1984 통일한국 Vol.3 No.-

AWS ER70S-6, 1.2mm 솔리드 와이어를 사용하는 가스금속아크용접(Gas Metal Arc Welding)에서 작업자의 용접흄 및 금속 폭로에 영향을 주는 요인

정재열,김정만,김용규 동아대학교 부설 산업의학연구소 1997 산업의학연구소 논총 Vol.- No.3

CO₂용접을 대상으로 용접자세, 용접전류 및 헬멧에서 아크까지의 거리 등에 따라서 작업장에서 발생하는 용접흄과 금속에 대한 폭로농도를 파악하여 폭로에 영향을 줄 수 있는 요인을 밝히고자 본 연구를 수행하였다. 중장비 제조업체에서 직경 1.2mm 솔리드 와이어(AWS ER70S-6, BS A18, JIS YGW12)만을 이용하여 CO₂용접을 하는 작업자 95명(전자세 작업자 34명, 아래보기와 수평자세 30명, 위보기와 수직자세 31명)을 대상으로 수행하였다. 연구결과를 요약하면 다음과 같다. 1. 아래보기와 수평자세에서 용접흄의 폭로농도는 15.83mg/㎥으로 가장 높았고, 용접전류도 257.83암페어로 가장 높았으며 헬멧에서 아크까지의 거리 또한 44.87cm으로 가장 멀었다. 2. 철, 망간, 구리, 아연의 금속 폭로농도는 아래보기와 수평자세에서 각각 5.254mg/㎥, 0.849mg/㎥, 0.072mg/㎥, 0.048mg/㎥으로 가장 높았다. 용접흄의 폭로농도가 높을 수록 용접 와이어 그리고 일부 금속은 모재에 함유되어있는 성분이 금속 폭로에 영향을 주었다. 3. 전자세에서 용접흄의 폭로농도와 용접전류사이의 상관관계가 r=0.93으로 가장 높았고, 아래보기와 수평자세에서 용접흄 폭로농도와 헬멧에서 아크까지의 거리사이의 상관관계가 r=0.39으로 가장 높았다. 용접자세에 따른 용접흄 폭로농도에 있어 헬멧에서 아크까지의 거리보다는 용접시 이용되는 용접전류가 더 큰 영향을 주었다. 4. 아래보기와 수평자세에서 공히 용접흄의 폭로 농도가 높을 수록 용접 와이어의 성분인 철, 망간, 구리, 아연의 폭로농가 높은 경향을 보였다. 5. 용접자세에 따른 금속의 복합영향에 있어서 용접자세에 따라 다소 차이가 있었으나 용접 와이어에 함유되어있는 주성분인 철, 망간, 구리가 복합영향에 대한 기여도가 큰 경향이 있었다. 6. 3 개군 모두에서 용접흄의 폭로농도가 높을 수록 복합영향도 높은 경향이 있는 것으로 나타났다. CO₂welders(n=95) using AWS ER70S-6, 1.2mm diameter solid wire were examined and 95 CO₂welders were consisted of 34 all position, 30 downward & horizontal, and 31 overhead & vertical welders. To measure personal exposure for welding fumes and metals, full-period consecutive sampling was used. The results were as follows : 1. Welding fume exposure of 15.83 ㎎/㎥ , welding currents of 257.83 ampere and helmet-to arc distance of 44.87㎝ in downward & horizontal position was the highest and the longest of the three welding positions. 2. Metal exposures of iron, manganese, copper, zinc in downward & horizontal positions were the highest of the three welding positions and the concentrations were 5.254 ㎎/㎥, 0.849 ㎎/㎥, 0.072 ㎎/㎥, 0.048 ㎎/㎥, respectively. 3. Correlation coefficient of 0.93 between welding fume exposures and welding currents in all position was the highest of the three welding positions and correlation coefficient of 0.39 between welding fume exposures and helmet-to arc distances in downward & horizontal positions was the highest of the three welding positions. According to welding fume exposures by welding positions, welding currents had more effect than helmet-to arc distances. 4. Increasing welding fume exposures in downward & horizontal positions, metal components of iron, manganese, copper in welding wire and especially, zinc of base metal were observed. 5. Combined effects of metals by welding positions were some differences but iron, manganese, copper of welding wire major components were the trend that contributes to combined effects(CE). 6. Increasing welding fume exposures in 3 welding positions, combined effects were also high.

傳統建築 形態要素의 現代的 表現 方法에 관한 試驗的 硏究

金容圭 부천대학 1998 論文集 Vol.19 No.-

1. In the case of traditional elements of form expressed in a modernization, the understanding of traditional modernization is able to come into existence when the reflection of visual thinking of interpreter's experience on the traditional element of form become main idea, and even when the formation of concept by experiences work out with the morpheme and reciprocal relation. Therefore, after the word, traditional, there should be a consideration with the experiences of modernization, and the conception based function also have to be completed by experiences of modernization. 2. To stand out the form of modernization form Traditional Architecture, the visual communication, the understanding of interpreter(user) in present time have to be considered mostly, and the generalization of visual thinking of form is ambiguous and equivocal. 3. To keep the tradition of Traditional Architecture, the background should be built up for the people to experience the form of Traditional Architecture without difficulty, and the interpreter would get the sympathetic harmony even the form of Traditional Architecture represented in abstract symbolic system. 4. The visual presentation of traditional element is required of thorough and scientific examination with the response from populace(interpreter). To complete the understanding of space and the composition of 3-dimensional in same time, the constant study in the form of Traditional Architecture and the form of Modernization are necessary.

로타제조에서의 주조조건 영향에 관한 연구

金容圭 홍익대학교 산업기술연구소 1997 産業技術 Vol.7 No.-

The effects of casting conditions and pretreatment of core on the small rotor were investigated by using the SEM, opitical microscopy, colour check and X-Ray. From the results, the opitimum pouring temperature and injection pressure were identified. Also the infection speed had little influence on the quality within the some constant range. The pretreatment of core was effective in the gas hole reduction.

냉연한 90-10 황동의 변형 집합 조직에 관한 연구

金容圭 홍익대학교 산업기술연구소 1995 産業技術 Vol.5 No.-

Texture in cold rolled 90-10 brass rolling reduction from 60 to 98% has been investigated to characterize the mechanism of deformation with x-ray and electron micrography. The crystallite orientation distribution function has been determined from three incomplete pole figures ({111},{200},{220} at cold reductions of 60,70,80,90,95,97 and 98 percent. The textures of 90-100 brass show a similar initial development to that of copper but a transition occurs above the intermediate strain level. This indicated that an additional deformation mode had become active. The feature of the transition are consistent if the additional deformation mode were mechanical twining and shear band.

William Faulkner의 "The Sound and the Fury"에 대한 考察

金容圭 서울産業大學校 1986 논문집 Vol.24 No.1

William Faulkner's The Sound and the Fury may be justly called an immortal pyramid in modern literature of the West. Faulkner created an imaginary world that is complete in itself. For while Faulkner commands the past of his Yoknapatawpha County as a fund of legend, memory, and pain, what he can summon of it in a given book tends to be partial and fragmented. The world of Yoknapatwapha, though of great fascination simply as a spectale of rama and event, is also the setting for a complex moral chronicle in which a popular myth and an almost legendary past yield something quite rare in American literature: a deep sense of the burdens and grandeur of history. In America this kind of literary enterprise is seldom undertaken and still less frequently compelted. Faulkner's Yoknapatwapha County, 2400 square miles in area, bounded by the Talahatchie and Yoknapatwpapha rivers, and comprising mainly farm lands and pine hills. One of Faulkner's great subjects, human rootlessness in the modern world, is a subject made possible by the rootedness of his own life in the one part of the country which, at least until recently, could still be called a region. To penetrate Faulkner's work it is necessary first to look at the self-contained world of Yoknapatwapha, a world with its own social relations and moral qualities. To see this world is to come upon an important difference between Faulkner's books and the traditional social novel. Faulkner did not see the massive and benumbing violence of trench warfare, nor did he even see the human price exacted for the aristocratic individualism of the air. So some dreams remained intact. And some deep personal bias toward violence, some admiration of the crazy personal gesture, and an idealized version of the South's old war, could persist untarnished and uncriticized by grisly actuality. The aim of the thesis is to explain the various techniques of Faulkner's major novel- The Sound and the Fury - and to show how these techniques are achieved in the work.

李朝社會의 去來法

金容圭 성곡언론문화재단 1972 성곡논총 Vol.3 No.-