• 한국자동차공학회논문집
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• 제12권2호
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• pp.190-196
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• 2004

ACR(All Clear Reflector), also widely referred to as FFR(Free Form Reflector), were designed in general and intelligent ways using a NUDBS surface for the mathematical modelling of the reflector shape and artificial intelligence as the optimum design algorithm. An ACR, which consists of a continuous surface reflector and clear outer lens, offers styling advantages and provides a high quality light performance. The clear outer lens of an ACR remains efficient even with a highly inclined shape, as in the design of a sports car, as well as the complete clearness of the reflector surface eliminates the nuisance of stray light caused by the steps between adjacent segments of multi-faced reflectors. The application of an ACR to low beam lamp was so sucessful to obtain the sharp cut-off with the lens-free single-surfaced-smooth reflector. The design technique of ACR was tested with all types of lamps, including low beams, high beams, and fog lamps.

• Transactions on Electrical and Electronic Materials
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• 제17권3호
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• pp.139-142
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• 2016

β-AgVO₃ nanorods have been successfully synthesized using a soft chemistry route followed by heat treatment. They were characterized by X-ray diffraction and field emission scanning electron microscopy, and their electrochemical properties were investigated using cyclic voltammetry, impedance spectra, and charge-discharge tests. The results showed that the smooth-surfaced nanorods are very uniform and well dispersed, with diameters of ~100-200 nm and lengths of the order of several macrometers. The nanorods deliver a maximum specific discharge capacity of 275 mAh g^-1 at 30 mA g^-1. They also demonstrated good rate capability with a discharge capacity at the 100^th cycle of 51 mAh g^-1.

• Asian Journal of Innovation and Policy
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• 제4권1호
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• pp.19-34
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• 2015

Silicon Valley's legal foundation in recent years has surfaced on the radar of policy planners who model Silicon Valley's information and communication technologies (ICT) industry. Precisely, the prohibition of covenants not to compete (CNCs) is linked to firm-to-firm knowledge spillovers by way of mobile workers positioned as nodes in a system of innovation. Meanwhile, traditional frameworks support enforcement of CNCs as a way to encourage R&D activities to the worker and to prevent the worker's tacit knowledge and know-how from fleeing. Amidst the battle for the restraint or release of human capital, we present an industrial approach to reconcile the ostensible strife between enforcement and prohibition frameworks. Theoretically, we contend an industrial approach can maximize the policy tools of discorded planners. Moreover, this article newly compares the ICT industries of Silicon Valley and Route 128 to argue that California's law is a unique factor in the greater success of Silicon Valley firms.

• KIEAE Journal
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• 제8권5호
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• pp.77-83
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• 2008

Housing development, particularly apartment buildings, has been increasingly growing due to the construction promotion policy of the government since the 1980s. However such a volume-oriented policy results in unfavorable side effect of substandard quality and early deterioration in line with the expansion in volume. As part of measures to deal with the problems, rebuilding and remodeling have surfaced as alternative recently. Remodeling is expected to create the more benefits, compared to the rebuilding, in cost, efficiency and duration. To come up with the solution to such a challenge, it's necessary to analyze the influence factors of remodeling. Hence, the study was intended to compare the remodeling in the aspect of influence factors. The results of this study is expected to the propose of effectual management factors of the remodeling construction.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.814-815
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• 2011

A surfaced permanent magnet spherical motor is capable of operating as three degree of freedom that used for the joints of the robot's arm, leg, and eyes. Ongoing research like new concept is essential part of motor field, it will make a great contribution in the future the overall portion of the motor, is becoming expected. The author analysis torque characteristics in spherical motor with state of rotating and positioning. And future design direction is smaller motors with equivalent or higher output. Solutions as torque and efficiency improvements are selecting the core with special processing type like powder metallurgy materials. Their special characteristic is high permeability and low eddy current losses at high speed, so improved the torque and efficiency.

• 한국잠사곤충학회지
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• 제16권2호
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• pp.111-117
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• 1974

가잠의 휴면성 및 비휴면성 뇌의 뇌간부 신경분필세포의 미세구조에 관한 연구 가잠 환충의 뇌에 대한 전자현미경적 관찰에 의하면 뇌간부의 최대신경분필세포는 휴면난성에서 지방성 과립을 생성하고 비휴면난성에서는 반투명체의 전자소포를 생성하고 있었다. 휴면난성에서 처음 리보좀으로 보이는 입자들은 서서히 전자밀도가 높은 입자들로 발전하면서 골면 소포체에 연하여 배열되고 마침내 이 입자들은 지방성과립으로 된다.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2014년도 추계 학술대회 논문집
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• pp.189-203
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• 2014

Silicon Valley's legal foundation in recent years has surfaced on the radar of policy planners who model Silicon Valley's ICT industry. Precisely, the prohibition of covenants not to compete is linked to firm to firm knowledge spillovers by way of mobile workers positioned as nodes in a system of innovation. Meanwhile, traditional frameworks support enforcement of covenants not to compete as a way to encourage R&D into the worker and to prevent the worker's tacit knowledge and know-how from fleeing. This article examines the ICT industry in Silicon Valley and Route 128 to argue that California's unique law is a key factor in the success of Silicon Valley firms. Theoretically, we reconcile the ostensible strife between enforcement and prohibition frameworks by presenting an industrial approach. We contend that selective enforcement by industry can maximize the policy tools of discorded planners.

• Korean Journal of Geomatics
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• 제3권1호
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• pp.43-51
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• 2003

This paper presents the benefits of using close-range digital photogrammetric techniques for measuring the roughness of rock surfaces, using digital stereo images obtained from a Rolleiflex 6006 metric camera. To precisely measure surface roughness, we researched on how to use the flat and curved reference surface obtained from geometrically corrected digital images of the rock surface by using the least squares method. To test the precision of the proposed technique, the surface roughness has been measured between the reference surface and sample areas of very smooth-surfaced rock. Then the results were compared with the measurements obtained from a laser sensor profilometer.

• 한국패류학회지
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• 제13권2호
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• pp.175-184
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• 1997

A histochemical and ultrastructural study on the stomach epithelium of a land snail Nesiohelix samarangae was carried out during the period of June 1996 to May 1997. The stomach epithelium is simple columnar dpithelium and is consisted of three types of columnar cells, Type 1 cell which is majority in number has a brush border with microvilli on the free surface of the cell and contains numerous secretory granules supposed to be neutral mucopolysaccharide. Type 2 cell, elongated conical in shape. is rarely found in the dpithelium. This cell also has a brush border with microvilli on its free surface and contains well developed rough surfaced endoplasmic reticulum, Golgi bodies, and secretory granules in various electron densities. This cell seems to produce both of acid and neutral mucopolysaccharides. Type 3 cell, which is morphologically similar to the Type 1 cell, has microvili and cilia on the free surface and exists in group only in the limited regions of the stomach.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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• pp.221-224
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• 1998

Environmental pollution is continuously increasing with the economic growth and industrial development. With this trend, soil and groundwater pollution problem has been surfaced as important social issues. Recently, Korean government promulgated the Soil Environment Conservation Act. But there are many problems to control sound soil quality management. Anthropogenic source of pollution such as waste landfill, pesticides, fertilizer, underground storage oil tanks is important as well as natural source such as acid rain and forest fire. The regulation should be expanded to include groundwater preservation as well as soil quality, because soil pollution is closely related to groundwater pollution. Therefore, legal regulations must be expanded to these facilities and take into account technical feasibility and finance.