http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
신유식(Shin You-Sik) 한국중원언어학회 2003 언어학연구 Vol.- No.7
The Korean writing system is as follows : The writing of word is mixed by three writing systems like modem Korean : the conjugated, the separate, and the combination of nominal stems and declensional suffixes. But with the advent of morphemic transcription caused by morph analysis of the Westerner, You, Gil Jun(兪吉濬) and Ju, Shi Gyoung(周時經) insist the separate writing of nominal and declensional suffixes of word writing. Especially, ju, Shi Gyong(周時經) assert the syllable-final's enlargement in graphemic system for the very reason that the separate writing. But the separate writing becomes possible in the use of Korean characters. As a consequence, the separate writing as the mainstream in the Civilization period come to the front for ideal but is not utilized.
신유식(You Sik Shin),이윤환(Youn Hwan Lee),이상철(Sang Chul Lee),김세현(Se Hyun Kim),정효민(Hyo Min Jeong),정한식(Han Shik Chung) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The cooling tower is a device for making a cooling water in the air conditioning system of building, and there are many kinds of cooling tower system for air conditioner. In this paper, we introduced the water cooling system with an enclosed tank and water ejecting system for evaporating the water in tank. The city water was used for a working fluid, and the cooling water is generated by evaporating latent heat in the tank with a 25~50mmHg. The time to reaching this vacuum pressure was about 20~30minutes, and cooling water was obtained the value of temperature difference ΔT=7℃.
신유식(You-Sik Shin),배강열(Kang-Youl Bae),배철환(Chul-Whan Bea),이윤환(Youn-Hwan Lee),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
This paper is the study on the performance of cooling tower system by using the low vacuum. Currently, the cooling system is using at many parts of the industry. But, the present system have many problems for the cooling process. Thus, This research aimed for replacing the present cooling<br/> tower system. This new cooling tower system have a low vacuum, and have a ejector system to maintain a low pressure. As a main experimental parameter, we introduced a flowrate at the inlet ejector system.
이방성 매질의 편광투과특성 분석을 위한 확장된 존스 행렬식의 개선
류장위,신유식,김상열,안성혁,김용기,Ryu, Jang-Wi,Shin, You-Sik,Kim, Sang-Youl,An, Sung-Hyuck,Kim, Yong-Ki 한국광학회 2008 한국광학회지 Vol.19 No.2
확장된 존스 행렬법을 응용하여 등방성 매질과 이방성 매질의 경계면에서 투과계수를 근사적인 방법을 사용하지 않고 정확히 계산하였다. 광학 이방성이 작은 경우($|n_e-n_o|\;{\ll}\;n_o,\;n_e$), 계산된 투과계수가 근사식에 의한 투과계수와 일치하는 것을 확인하였다. 정확한 투과계수 표현을 사용하여 임의의 편광상태로 입사한 빛이 단축이방성 a-판을 투과한 후의 편광상태를 임의의 입사각과 방위각에 대하여 계산하였다. 또한 광축이 수직으로 교차된 이상적인 두 o-타입 편광자에 편광되지 않은 빛이 투과한 경우 투과율을 임의의 입사각과 방위각에서 계산한 후, 기존의 근사식과 비교하였고, 완전하지 않은 두 편광자의 소광계수와 두께의 변화에 따른 투과율을 계산하여 실제의 편광자를 상정한 소광도를 평가하였다. 근사식이 적용되지 않는 이방성이 큰 이방성 매질을 통과한 후의 빛의 편광상태를 분석할 때 적용될 수 있도록 정확한 투과계수를 사용하는 방법을 제시함으로써 액정 디스플레이 분야 광소자의 편광 분석에 기여하고자 하였다. The exact transmission coefficients at the interface between a uniaxial anisotropic medium and an isotropic medium at? oblique incidence are derived by applying the extended Jones matrix method. When the birefringence of the uniaxial anisotropic medium is small ($|n_e-n_o|\;{\ll}\;n_o,\;n_e$), the exact transmission coefficients are compared with those by the conventional extended Jones matrix method by Yeh et al. They showed an excellent agreement with each other. In addition, using the exact transmission coefficients, we calculated the polarization characteristics of a light through a uniaxial medium to an incident light with arbitrary polarization state at? oblique incidence. We compared the transmittances of an unpolarized light through a pair of crossed o-type polarizers by two different methods and calculated the transmittance as the variation of the optical constants of the polarizers to evaluate of the extinction ratio. The polarization analysis method using the exact transmission coefficients can be applied to polarization characteristics of a light through a uniaxial medium with large birefringence as well as to liquid crystals and to optical anisotropic material.
증기 구동식 진공 시스템을 이용한 해수 냉각 특성에 관한 실험적 연구
최민식(Min-Sik Choi),金鎭花(Zhen-Hua Jin),신유식(You-Sik Shin),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung),배태열(Tae-Yeol Bae) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
A steam ejector is a device which is used to transport vapor or liquid at low pressure to a higher pressure or to make vacuum as its simplicity and reliability. It is widely used in refrigeration system, power system and food industry etc. This study showed the water cooling system by using a steam ejector to drop water temperature by about 5℃ from 25℃ or higher. In this study, to replace the present water cooling system, we focused on a water cooling system operated by the latent heat of evaporation, thus this system needs a vacuum pressure to evaporate the water in enclosed tank. The water cooling effects are depended on the vacuum pressure in the enclosed tank, and the cooling water is generated by the latent heat of evaporation. As the experimental results, the absolute vacuum pressure was obtained about 8~12㎜Hg by using a steam ejector. The necessary time to reach this vacuum pressure was about 5minutes and the temperature difference of the water were obtained about 5℃.
증기 구동식 진공 시스템을 이용한 압력 강화와 물의 냉각 특성에 관한 실험적 연구
공세훈(Se-Hoon Kong),신유식(You-Sik Shin),이상철(Sang-Chul Lee),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung),이철재(Cheol-Jae Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
This study performed of a water cooling system by using a steam ejector and jet condenser to drop the temperature of the water in aquafarm by about 5℃ from 25℃ or higher. In this research, to replace the present water cooling system, we focused on a water cooling system operated by latent heat of evaporation, thus this system needs a vacuum pressure to evaporate the water in enclosed tank. The water cooling effects are dependent on the vacuum pressure in the enclosed tank, and the cooling water is generated by evaporation. As the experimental results, the absolute vacuum pressure obtained was about 2~3㎜Hg using a steam driven ejector with jet condenser in experiments. The temperature difference of the water is about 5℃.