• JOURNAL OF ELECTRICAL WORLD
• /
• no.11 s.95
• /
• pp.84-87
• /
• 1984

정보화의 진전은 바야흐로 기업의 사무분야에만 그치지 않고 가정에도 그 파도가 밀려오고 있다. 가정은 $\ulcorner$생활의 근거지$\lrcorner$이니만큼 $\ulcorner$가정의 정보화$\lrcorner$를 진행시키기 위해서는 각종 정보통신서비스에 대응한 기기류가 유기적으로 결부되어 집밖이 여러 가지 사회시스템과의 통신회선을 통하여 의지의 소통을 충분히 할 수 있는 생활과의 합리성을 가진 시스템의 구축이 중요하다 그래서 이 조사기관에서는 앞으로 가정의 정보화를 원활하게 추진하는데 있어 기술적인 검토뿐만 아니라 서비스 $\cdot$시스템 이미지, 아세스멘트, 맨머시인 인터페이스등의 다각적인 조사연구를 진행해왔다. 여기서는 그 일부로서 1990년대의 서비스$\cdot$시스템 및 금후의 기술표준화 동향에 대해 생각해 보기로 한다.

• 월간낙농육우
• /
• v.35 no.12
• /
• pp.147-153
• /
• 2015

젖소가 사료를 먹는 양은 생리학적으로는 혈당과 포만감에 의해 조절되며, 일반적으로 국내에서 사용하는 사료섭취량은 미국 NRC(국립과학연구소, The National Research Council)에서 실험 통계학적으로 나온 결과를 기준으로 품종, 산차, 체중, 비유시기, BCS(체점수), 기온 등을 고려하여 설정되었다. 최근 우리나라에서 풀의 사용량이 갈수록 증가하고 있는데 이에 따른 수익도 있지만 문제점은 없는지, 특히 생리학적인 면에서 한번은 짚고 넘어가야 한다고 보기 때문에 필자가 언급코자 한다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2006.10b
• /
• pp.54-57
• /
• 2006

바둑 기보를 보거나 편집하기 위한 소프트웨어들은 대부분 비슷한 인터페이스와 기능을 제공하고 있으며 별다른 성능과 기능이 더 필요하지 않을 만큼 잘 개발되어 있다. 그러나 이런 류의 소프트웨어에서 사용자가 기보를 원하는 방향에서 보기 위해 바둑판을 회전/대칭 처리하고자 할 때 매우 불편함을 경험하게 된다. 그래서 본 연구에서는 이에 대한 직관적인 인터페이스 방법을 제안하고 이를 구현하기 위한 수학적인 연산을 제시하고자 한다. 본 연구에서 제안한 WYSWYG 방식의 인터페이스는 바둑 애호가뿐만 아니라 프로 기사들에게도 매우 편리한 기능이 될 것임에 틀림없다.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.14 no.4
• /
• pp.907-911
• /
• 1990

본 연구에서는 비열이 일정하고 초기온도가 주어진 열원으로부터, 일정한 열 전달 용량의 열교환기를 사용하여 최대의 에너지를 전달시키기 위한 조건을 구해 보기 로 한다. 즉, 저온유동은 고온의 열원유동과 대항류로서 열교환하며 위치에 따라 저 온유체의 온도가 가역 단열압축 또는 팽창에 의하여 임의로 조절될 수 있는 일반적인 경우에 대하여, 저온유체가 최대의 가용 에너지를 흡수하기 위한 온도분포를 변분법 문제로서 해석하고 그에 다른 부수조건들을 검토하고자 한다.

• The Korean Journal of Zoology
• /
• v.25 no.3
• /
• pp.107-114
• /
• 1982

A combination of ultraviolet irradiation and egg rotation was applied to Korean frogs to study the mechanisms of the establishment of the dorsal-ventral polarity. Rotation of the uncleaved egg was capable of preventing the characteristic syndromes associated with UV irradiation. As well, brief rotation of the egg before cleavage relocates the site of dorsal lip to a novel location in the embryo at gastrula stage. That is, the dorsal lip appeared on the opposite side to gravity at the rotation of the egg. Above results were discussed with the informations obtained from other anuran and urodele species, and were interpreted in terms of regulating mechanisms for early embryogenesis.

• Journal of Korea Game Society
• /
• v.10 no.5
• /
• pp.3-13
• /
• 2010

This paper focuses on the sequences between game performance, game experience, game generation. Present-day the game has powerful effects to form new human species as game generation. Especially, the experience game is important because it could have one of the most powerful effect by characteristics of own interface. First of all, this paper analyzes a experience of the experience game and researches the game-extended space. Secondly, We create concept of 'new game generation' in order to explain new human species on the experience game. So we can reveal the social meaning of accelerated present state by the experience game through this new analysis.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.19 no.1
• /
• pp.133-138
• /
• 2011

Compression pressure of individual cylinder and valve timing have big influence on combustion pressure, indicated mean effective pressure (IMEP), emission, vibration, combustion noise and many other combustion parameters. Therefore, uniformity of compression pressure and valve timing became one of most important engine design and production standard. Conventional method to evaluate compression pressure uniformity is to measure each cylinder pressure by mechanical pressure gage during cranking. This conventional method causes inaccuracy of cylinder pressure measurement because of different cranking speed results from battery status and also causes high manhour and cost. To check valve timing, related FEAD parts should be disassembled and timing mark should be checked manually. This study describes and suggests new methodology to measure compression pressure by analysis of start motor current and to check valve timing by cylinder pressure with high accuracy. With this new methodology, possibility to detect leaky cylinder and wrong valve timing was observed.

• Journal of the Korean Society of Propulsion Engineers
• /
• v.5 no.2
• /
• pp.44-50
• /
• 2001

After modeling an aircraft turboprop engine using SIMULINK$\circledR$, performance simulation of PT6A-62 engine, which is main power plant of KT-1, was performed. For validation, performance parameters of the SIMULIINK model were compared with the simulated results by GASTURB program. It was confirm that the results by the SIMULINK model were well agreed with those by GASTURB within 1.07%, It was assumed that installation losses were bleed-air exteraction with a range from 0% to 5%, and power for accessories with a range from 0 to 20hp. In this investigation, it was found that the shafthorsepower was decreased by maxium 0.68%, but specific fuel consumption ratio was not effected nearly by these losses.

• Journal of the Korean Society of Propulsion Engineers
• /
• v.25 no.3
• /
• pp.81-88
• /
• 2021

An airbreathing propulsion system of a subsonic cruise missile is mainly composed of a small gas turbine engine, air intake and vehicle's fuel tank. The propulsion system integration work started from engine acceptance test is finally closed by ground functional test of the missile's propulsion section, after some modifications of engine's sub-components, development of engine-related onboard systems, interface analyses, and tests. The whole process and stepwise technologies of this system integration work are described herein.

• Journal of the Korean Chemical Society
• /
• v.37 no.7
• /
• pp.642-647
• /
• 1993

Monolayers of pure surfactant squaraine, DSSQ(4-distearyl amino phenyl-4'-dimethylaminophenylsquaraine), were deposited on $SnO_2 $ electrodes by the Langmuir-Blodgett film technique. The DSSQ film exhibits ${\lambda}_{max}$ at ∼530 nm. The absorption is significantly red-shifted from the solution of DSSQ (633 nm in chloroform), suggesting that the squaraine chromophores form aggregates in the LB film. The photogeneration of the squaraine aggregates is studied by measuring the photocurrents in photoelectrochemical cells consisting of the squaraine of the aggregates is found to parallel its absorption spectrum and quantum efficiency as high as 0.3% has been observed. While the photocurrent was attenuated exponentially when stearic acid layers (up to 8 layers) are inserted between the squaraine layer and the electrode, it is nearly extinguished when the squaraine layer is over-coated with 2 layers of stearic acid. A model for the observation is proposed and the roles of the electrolytes and oxygen on the photogeneration process will be discussed.