• 건축사
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• 11호통권236호
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• pp.51-90
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• 1988

• 한국전기화학회:학술대회논문집
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• 한국전기화학회 1998년도 제1회 총회 및 추계학술발표회
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• pp.51-51
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• 1998

• 한국해양공학회지
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• 제11권4호
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• pp.90-101
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• 1997

A hybrid element method is presented for two-dimensional diffraction problem of water waves. In this method, only a limited fluid domain close to irregular bodies is discretized into conventional finite elements, while the remaining infinite domain is treated as one element with analytical representations of high accuracy. A finite element grid is automatically generated by using Dealunay triangulation based on the Bowyer's algorithm and a linear system of equations is approximately solved with the ILU-CGS algorithm. To validate the present scheme, Computational results are compared with the existing experimental data and other numerical solutions.

• 동양고전연구
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• 제54호
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• pp.235-252
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• 2014

본 논문은 조선중기에 경상남도 함안을 기반으로 임진왜란(壬辰倭亂, 1592~1598)과 병자호란(丙子胡亂, 1636~1637) 및 이괄(李适)의 난(1624) 등 온갖 국난을 겪으면서 창의(倡義)하여 애국애민(愛國愛民)적 실천을 보여준 지식인 박진영의 사상적 토대를 살펴본 글이다. 따라서 본고는 박진영의 행적을 중심으로 그 사상적 토대에 초점을 맞추어 확인하는 데 목적이 있다. 이를 위해서 그가 대의명분(大義名分)에 뜻을 세우게 되었던 측면과 현실 참여의 측면 그리고 그의 달관(達觀)적 처세(處世) 등으로 나누어 논의를 전개하였다. 아울러 정구를 중심으로 그의 사상 형성에 영향을 끼친 사승 관계와 연관 지어 이를 고찰하였다. 박진영은 임병(壬丙) 양난(兩難) 이후, 조선 사회에 대두된 존주(尊周)사상의 대표적 인물 가운데 한 사람이며, 대의명분을 입지의 근간으로 삼았던 스승 정구의 사상이 제자인 박진영의 사상 형성에 큰 영향을 끼쳤고, 이는 또다시 대의명분에 입지한 조선시대의 전형으로서 박진영이 자리매김하는 데 일조했다고 할 수 있다. 또한 정구의 현실적 애민의식의 발로(發露)는 박진영이 국난의 어려움을 간과하지 않고, 창의(倡義)를 도모할 수 있었던 사상적 기반으로 작용했다고 하겠다. 마지막으로, 박진영은 유가적 사상에 기반을 두고 적절하게 처신했던 스승들의 사상에 영향을 받아 공명(功名)을 좇는 삶이 아닌, 시의에 따르는 삶을 영위했던 당대에 보기 드문 참지식인이었다고 할 수 있다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.357-361
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• 1997

In this work surface damage of head and disk of head disk drive was analysed using an Atomic Force Microscpoe. The initial damage of the disk occurred by generation of extermely small wear particles. Also it was show that wear particles tend to pile up near the front side of the slider. The surface damage mechanism of drag test and contact-start-stop test was found to be quite similar.

• 한국정밀공학회지
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• 제15권9호
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• pp.167-174
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• 1998

In this work the surface damage of head and disk of a hard disk drive was analysed using an Atomic Force Microscope. The initial damage of the disk occurred by generation of extremely small wear particles. Also it was shown that wear particles tend to pile up near the front side of the slider. The surface damage mechanism of drag test and contact-start-stop test was found to be quite similar.

• 한국정밀공학회지
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• 제14권3호
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• pp.122-129
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• 1997

Machining technology has emerged to the point of performing atomic-scale fabrication. In tail paper atomic-scale machining characteristics are investigated by using Molecular Statics simulation method. The cutting model used in this work simulates machining with tools such as an AFM. It is shown that built-up edge formation and cutting forces depend on tool tip geometry. Also, the material flow during cutting is shown for various cutting conditions such as depth of cut, rake angle, and edge radius of tool.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 1997년도 제26회 추계학술대회
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• pp.45-50
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• 1997

In recent years the recording density of hard disk has been increasing largely due to the decreasing flying height of head. However, as the flying height is decreased the reliability issue becomes ever more critical. This is because the reliability and durability of hard disk is related to the head/disk interaction as the two components come into partial or full contact. In this work characteristics of friction and stiction in head/disk interface was investigated using constant speed drag test and CSS(contact-start-stop) test. The purpose of this research is to identify the frictional properties of head/disk interface

• 한국환경농학회지
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• 제33권2호
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• pp.144-147
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• 2014

BACKGROUND: It is essential to prioritize the exact and clear understanding of agricultural nonpoint source pollution (NPS) controls. The realistic policies and systems should also be developed based on this understanding. Therefore, this study aimed to present agricultural Best Management Practices (BMPs) applicable for the fields based on the Delphi survey result. METHODS AND RESULTS: This study deduced the evaluation items to assess each BMP for agricultural NPS control and conducted the surveying using the Delphi method based on agricultural BMP experts. In addition, its on-the-spot application were evaluated. Considering its importance, technical, social and economic proprieties showed that political support was ranked first and followed by cost investment, labor investment, reduction effect and resident participation. The survey findings by agricultural BMP experts showed the good performance of on-the-spot application can be achieved from fertilization by soil testing, residue and green manure application and contour plowing which are applicable within a field. Agricultural BMPs, highly applicable for the fields, were the countermeasures that farmers who are the principal bodies of agricultural NPS control could be participated directly. CONCLUSION: The active participation of farmers is essential for effective control of agricultural NPS. It is necessary to establish various incentive systems.

• 한국토양비료학회지
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• 제44권3호
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• pp.368-370
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• 2011

가축분뇨 액비인 SCB 액비를 논토양 조건의 포트에 시용하였을 때 자외선에 의해 분변성 대장균의 사멸효과가 높은 것으로 나타났다. 따라서 본 연구결과로 볼 때 가축 분뇨의 퇴 액비화시 유해 미생물 제거에 광의 이용 가능성을 확인할 수 있었다. 그러나, 여러 종류의 가축분뇨 퇴 액비를 직접 농경지에 시용하였을 때 외부 환경의 건전성 유지와 환경 위해성을 관리하기 위해서는 향후 농경지 시용에 대한 현장 실험이 보완되어야 할 것이다.