• 대한한의학원전학회지
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• 제26권4호
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• pp.267-280
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• 2013

Objective : One of the unique syndromes in Asian traditional medicine named 'heat entering the blood chamber(熱入血室, HEBC)' first appeared in Shanghanlun(傷寒論) and Jinguiyaolue(金匱要略) written by Zhangzhongjing(張仲景) who is the most famous doctor in ancient China. Method : Through comparison between Huangdineijing(黃帝內經), Shanghanlun(傷寒論), Jinguiyaolue(金匱要略) and other medical texts, the correct meaning, causes and mechanisms of HEBC can be analysed and organized to suggest new view of HEBC in modern society. Result : This syndrome is usually occurred in women during catching cold and menstruation, accompanying alternation of chillness and fever, pseudo-malaria, delirium, raveled chest(結胸), uterine hemorrhage, etc. The main sign of this syndrome, delirium belongs to the category of liver disease and fever in Huangdineijing(黃帝內經) which is a document more early published than Shanghanlun. Although there are still many other comprehensions about what blood chamber is, it could be the same as uterus according to Huangdineijing, it is relevant to the control of menstruation and emotions, and the function of liver and thoroughfare vessel(衝脈). Conclusion : HEBC is a syndrome exclusive to women, caused by their unique physical and psychological characteristics. It's beginning can be found in Huangdineijing, and by Shanghanlun and Jinguiyaolue, its concept as a single disease pattern becomes established. In other words, HEBC is a complex disease related to menstruation and its related hormonal dysfunctions, closely related to PMS, menopausal syndrome of today. Physical symptoms accompanied by psychological anxiety and fear is characteristic of this condition. Therefore gynecological approaches as well as socio-cultural issues related to women in modern society must be adopted when dealing with HEBC.

• 한국의류학회지
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• 제29권8호
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• pp.1176-1187
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• 2005

The purpose of this study was to evaluate the efficiency of cooling vests developed for farm workers harvesting red pepper in summer. The study was performed using the following two steps: 1) Climatic chamber test, 2) Field test. For the chamber test, a work environment was simulated as $33^{\circ}C$ and $65\%$RH, and the thermo-physiological and subjective responses were measured with and without cooling vests. Twelve young males participated as subjects. For the field test, three farmers participated while harvesting red pepper on the form, in summer. The measurements used were same as in the chamber test. Subjects were tested without any cooling vests, as a control. They were tested wearing vests with 2 frozen gel packs (CV2: Cooling area, $308cm^2$), and vests with 4 frozen gel packs (CV4: Sooting area, $616cm^2$). As a result of the chamber test, rectal temperature($T_{re}$) and mean skin temperature( $T_{sk}$) were lower in both CVs than in Control, and this tendency was statistically significant in CV4 (p<.05). Clothing microclimate temperature ($T_{clo}$) and total sweat rate (TSR) were significantly lower when wearing cooling vests (p<.05) Heart rate (HR) was also lower in wearing cooling vests than in Control, and the speed of recovery to the comfort level was faster when the subjects wore cooling vests. In addition, subjects felt 'less hot, less humid, and less uncomfortable' in both CVs than in Control. Field tests showed a similar tendency with the chamber tests. In particular, wearing the cooling vest was effective in restraining the raise of $T_{clo}$ on the back. It can be concluded that the cooling vest was effective in alleviating heat strain and discomfort in both the chamber test and the field test, despite the cooling area of the cooling vest being just $3.4\%$ of the body surface area ($616cm^2$).

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2003년도 유체기계 연구개발 발표회 논문집
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• pp.245-250
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• 2003

In order to control indoor air quality and save energy, it is needed to install a suitable ventilation system equipped with heat exchanger for heat recovery. The purpose of this research is to find the performance of paper heat exchanger for exhaust heat recovery, which exchanges latent heat as well as sensible heat. Experimental apparatus comprises heat exchanger model, constant temperature and humidity chamber, fan and measurement systems for temperature, pressure and flow rate. Thermal performance and pressure loss of the paper heat exchanger are measured and compared at various air velocities and outdoor conditions. Experimental results show that paper heat exchanger can recover $50{\sim}70%$ of the enthalpy difference between supply and exhaust air.

• 한국자동차공학회논문집
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• 제15권4호
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• pp.132-138
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• 2007

Experimental results of pulsating pressure behavior inside a chamber have been confirmed by computational work. Inside-cylinder pressure shows unstable condition at low rpm. This is caused by plate-type suction valve. It has effect up to inlet of the chamber. But trembling phenomenon is reduced as the pressure is enlarged by increasing the rpm. Result comparison between experimental and numerical analysis shows pulsation reduction is affected by the chamber. We can confirm that compressible effect of the working flow is shown at chamber inlet by increasing rpm. On the other side, this effect is declined at chamber outlet by increasing rpm. It means outlet pressure is going on balance with atmosphere pressure. Buffer plate-type chamber has efficiency of pulsation flow reduction.

• 대한기계학회논문집B
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• 제34권2호
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• pp.197-202
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• 2010

자발 진동하는 층류 예혼합 분젠 화염을 관찰하기 위하여 분기관을 가진 연소기를 제작 하였다. 특히, 조건에 따른 화염 거동을 살펴봤으며, 화염 표면적과 열발생 변동의 관계에 대하여 고찰하였다. 본 연구에서 사용된 당량비는 1.1 이고, 노즐 출구 평균 유속은 1.75 m/sec 이다. 연소 챔버와 분기관의 길이비(L.R.)는 연소기 내 압력 변동에 영향을 미치며, 결과적으로 화염 거동 특성이 달라짐을 관찰하였다. 또한, 간섭 필터의 유무에 따른 $OH^*$, $CH^*$, 그리고 화염 자발광은 정성적으로 유사한 거동을 나타냈으며, 자발 진동하는 층류 예혼합 분젠 화염의 화염 표면적 변동과 열발생 변동은 선형적인 관계를 가짐을 확인하였다.

• 한국산학기술학회논문지
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• 제14권2호
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• pp.567-572
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• 2013

냉난방을 사용하는 가정에서는 대부분 창문을 통해 열손실이 이루어지고 있는데 이를 방지하기 위해 Low-E 유리, 복층유리 또는 진공유리가 사용되고 있다. 본 논문에서는 진공유리 제작공정의 최종공정인 봉지공정에 대한 연구가 수행되었는데 기존 상압 접합이 아닌 진공챔버 내 접합이 고려되었다. 봉지과정의 효율성을 위해 진공챔버 내에서 히터온도에 따른 프리트 용융온도 및 접합시간을 최적화하였고 열응력으로 인한 유리 파손을 방지하기 위해 유리 예열온도를 최적화하였다. 이러한 결과를 바탕으로 성공적으로 진공유리를 제작하였고 측정된 열관류율은 약 $5.7W/m^2K$로 진공유리 내부압력은 약 $10^{-2}$ torr로 판명되었다.

• 대한한의학원전학회지
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• 제19권2호통권33호
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• pp.115-137
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• 2006

The Diagnosis and Treatment of Jaundice According to the Morbid Pulse in the Chapter 15 of Synopsis of Golden Chamber sets forth the classification, symptom, method of treatment, formula, prognosis of jaundice. The contents of this chapter can be induced by(from) yellowing and jaundice These two disease patterns assume various aspects of disease cause, pathomechanism, symptom, prognosis, and treatment. Jaundice was at first classified into liquor jaundice,dietary irregularly jaundice, black jaundicem abd sextual taxation jaundice, later classified into liquor jaundice, dietary irregularly jaundice, black jaundice, sextual tatation jaundice, and yellow sweat. the disease cause and pathomechanism of jaundice are said to be said to be due to the damp-heat, which is attacked with the evil of wind and dampness to affect the spleen-stomach and the liver. and to the inveterate drinking, damage by food, sextual taxation jaundice, sextual taxation, and vacuity taxation. This chapter mainly refers to jaundice as damp-heat, so that it lays down fundamental principles of clear heat and disinhibit dampness. In the prognosis of jaundice, ingibited urination shows symptoms of jaundice, and neither urination nor damp-heat develops symptoms of jaundice. and jaundice with thirst is difficult to cure, and that the symptoms of the abdominal fullness is also difficult to cure, while jaundice without thirst is ease to cure. Of the 18 days of suffering from jaundice, the symptoms of jaundice get better before and after 10 days. I think, however, that getting worse of its symptoms makes more meaningful clinically.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2003년도 제21회 추계학술대회 논문집
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• pp.53-56
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• 2003

본 연구에서는 액체로켓에서 널리 사용되는 냉각시스템이 장치된 실험용 액체로켓 엔진을 설계하고 제작하여 연소실험을 수행한 내용을 다루었다. 연소실험을 통해 측정한 열유속이 계산에 의한 해석결과와 유사하므로 실제로켓엔진의 설계 및 제작에 설계 프로그램을 이용할 수 있음을 확인하였다. 또한 연소실험결과 연소압과 혼합비가 추력실에서 발생하는 열유속에 미치는 영향을 고찰하였다.

• 한국응용과학기술학회지
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• 제37권5호
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• pp.1402-1408
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• 2020

에너지를 절감하기 위해 고효율 히트펌프를 개발하기 위한 많은 연구가 이루어지고 있으며, 실외기 코일에 발생하는 서리가 발생하는 현상을 줄이거나 없애기 위한 연구도 동시에 이루어지고 있다. 계절에 관계없이 히트펌프의 실외기에 서리가 발생하지 않는 연구를 진행할 수 있도록 자연상태와 동일한 조건에서 실험할 수 있는 항온챔버를 구축하였다. 실험장치의 타당성을 검증하기 위해 실험장치인 항온챔버 내의 실외기 앞 덕트의 직선 길이를 3가지 조건으로 나누어 시뮬레이션 하였다. 그 결과 덕트 관경의 10배 길이만큼 직선 공간을 확보해야 한다는 것을 알게 되었다.

• 대한조선학회논문집
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• 제49권6호
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• pp.541-549
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• 2012

The study adopted a freezing prevention method of the upper deck which used heating coil, and carried out numerical analysis by using ANSYS 13.0 CFD for design guide of the vessel operating in cold region. It is based on the experimental results of the anti-icing performance tests which were carried at cold room chamber in MOERI. Numerical analysis for the design guide was performed by considering S.S.T. (Shear Stress Transport) turbulent model for flow separation effects and the turbulence which occurred in interfaces of the numerical model in order to express appropriate heat transmission phenomenon. The numerical result shows average temperature of the upper deck surface appeared similarly compared with the indoor chamber test. The design guide for optimum freezing prevention presented through heat transmission capability and interval of the heat coil in various outdoor temperature($10^{\circ}C{\sim}-30^{\circ}C$) and wind speed(1m/s~7m/s).