• 제목/요약/키워드: Tae-yong Jeon

검색결과 642건 처리시간 0.023초

복합열원설비 운전온도 최적 설정에 관한 해석적 연구 (An Analytical Study on the Optimal Set-point of the Hybrid Plant)

  • 전종욱;이선일;이태원;김용기;홍대희;김용찬
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2007년도 동계학술발표대회 논문집
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    • pp.352-357
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    • 2007
  • The objective of this study is to find the optimal set-point of a hybrid Plant, which is combined by renewable energy plant of the GSHP(Ground Source Heat Pump) and the conventional plant(chiller, boiler). The work presented in this study was carried out by using the EnergyPlus(Version 2.0). In order to validate the simulation model, field data were measured from a building. The GSHP was used as a base plant and the conventional plant as the assistant plant. Various temperatures were controlled (zone summer set-point, zone winter set-point, chilled water temperature, hot water temperature) to find the optimal set-point temperature of the system. The influence of the various set-points were analyzed seasonally.

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Web 기반 이동로봇의 다중 접속 제어 처리법 (Multiplex connection control processing method of web based Mobile Robot)

  • 정성호;김성주;서재용;김용택;전홍태
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2002년도 추계학술대회 및 정기총회
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    • pp.239-242
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    • 2002
  • 점차 많은 형태의 가정용 로봇이 개발되고 있으며 일부 제품화되어 출시되고 있다. 이러한 가정용 로봇을 원격지에서 제어하고자 할 때 대부분이 인터넷이나 무선을 이용한 원격제어 또는 실시간 모니터링을 통해 제어하여 그 상황을 시뮬레이션으로 구현하고 있다. 그러나 제어대상이 극히 제한적인 수의 이동로봇인데 반해 다수의 가족 구성원인 제어조작자가 중복적으로 청소로봇과 같은 이동로봇을 제어하고자 접근을 시도했을 때 이동로봇에 다중적인 업무가 주어지게 될 수 도 있다. 이에 Database 를 이용하여 수행 업무의 우선순위와 제어조작자의 권한의 우선순위를 지정한 명령어를 Database 내에 구성하여 간접적으로 전송하여 제어하고자 한다. 그리고 제어를 통한 동작 시 실제 이동로봇의 속도와 방향 제어를 위해 퍼지 및 신경망을 이용한 지능제어를 구성하여 제어의 효율성을 극대화 하고자 한다.

수술장 최적화를 위한 효율적 운영시스템 구축 (The efficient operatiing system construction for the multidemensional optimization of the operating theatre)

  • 백롱민;양진기;양재선;오덕영;강성범;구자원;김재용;김태우;오주한;윤필영;이재호;임청;전용탁;허찬영;홍성규;황정원;김춘옥;김은경;조은주;윤경미;원현경;임세영;문현미;이소영;김해동;김민수;김세진
    • 한국의료질향상학회지
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    • 제14권2호
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    • pp.67-74
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    • 2008
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폐색성 혈전혈관염의 변증과 처방에 관한 문헌적 고찰 (Literature Review on Syndrome Differentiation and Herbal Medicine of Thromboangiitis Obliterans)

  • 정종진;선승호;이용현;고호연;정기용;송윤경;김태훈;홍성인;최유경;고성규;임은미;박종형;전찬용
    • 동의생리병리학회지
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    • 제29권2호
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    • pp.143-151
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    • 2015
  • This study was aimed at investigating the syndrome differentiation and herbal medicine of Thromboangiitis Obliterans by reviewing Chinese traditional medicine's journals. The journal search was carried out using China National Knowledge Infrastructure(CNKI) and PubMed from September 2009 to August 2014. Searching key words were the various combination of "Thromboangiitis Obliterans", "traditional chinese medicine", "syndrome differentiation", "herbal medicine". The final selection of 33 studies were selected and summarized by researchers. The syndrome differentiation was classified as yang deficiency, cold syncope and blood stasis. The most frequently herbs were blood-activating and stasis-resolving medicinals.

태양 복사에너지 충진재 변화에 따른 고온 태양열 공기식 흡수기의 열전달 성능 해석 (Heat transfer performance with different fills as volumetric air receivers for concentrated solar radiative energy)

  • 이주한;김용;전용한;서태범;강용혁
    • 한국태양에너지학회 논문집
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    • 제27권2호
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    • pp.71-78
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    • 2007
  • The heat transfer characteristics of solar tower receivers are experimentally investigated with receiver shapes. Generally, these become different according to the shapes and materials of the volumetric air receiver. In order to study these effects, the apparatus adopting laminated mesh and honeycombs as the volumetric air receiver is proposed. The receiver consists of laminated mesh (diameter; 100 mm, thickness; 1 mm), honeycombs (diameter; 100 mm, thickness; 30 mm) inserted into ceramic tube (inside diameter; 100 mm, outside diameter; 120 mm, length: 1000 mm). To apply heat to the receiver, an electric heater is used. To find out the heat transfer characteristics of the laminated mesh, the air temperatures are obtained by installing 3 thermocouples on each layer, dividing ceramic tube into 4 layers. Also, a radiative shield is installed to measure the only air temperature. The data for laminated mesh and honeycomb thickness of 30, 60, 90 mm are obtained. The results show that the temperature of layer 3 is higher than those of layer 2 and layer 1.

전업주부의 양육 부담과 우울감이 수면의 질에 미치는 영향: 가계수입의 조절된 매개효과 검증 (The Influence of the Burden of Nurturing and Depression on Sleep Quality in Female Full-Time Homemakers : The Moderated Mediating Effect of Monthly Income)

  • 전민정;정나래;황태영
    • 수면정신생리
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    • 제28권1호
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    • pp.34-42
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    • 2021
  • Objectives: This study investigated sleep quality in female full-time homemakers and evaluated the relationship of sleep disturbance with psychological and socio-environmental factors. Methods: This cross-sectional study adopted a structured survey and sequential recruitment method for randomized participation of community-dwelling full-time female homemakers. Sleep quality and mental health were measured using the Korean version of the Pittsburgh Sleep Quality Index (K-PSQI), Korean version of the Beck Depression Inventory-II (K-BDI-II), Korean version of the Beck Anxiety Inventory (K-BAI), and Korean version of the Beck Hopelessness Scale (K-BHS). The willingness-to-pay (WTP) method was selected to measure the self-evaluated monetary value of household service work. The relationship among the main relevant factors was statistically analyzed through a mediation model. Results: A total of 166 participants were analyzed and classified having poor versus good sleep quality (poor : 24.1%, n = 40 ; good : 75.9%, n = 126 ; cut-off point = 9 on the K-PSQI). Significant between-group differences were observed in mental health status (K-BDI-II, p < 0.001 ; K-BAI, p < 0.001 ; K-BHS, p = 0.003). The moderated mediation model was verified, indicating that depression may mediate the association between nurturing burden and sleep disturbance. The path from nurturing burden to depression may be moderated by average monthly household income. Conclusion: A relatively high portion of full-time female homemakers may suffer from sleep disturbance and interactions between psychological and socio-environmental factors might determine sleep quality, suggesting the need for public health policies targeting improvement of sleep quality and mental health among full-time homemakers.

D 정수처리장에서 소독부산물 발생 및 종분포 특성 (The Characteristics of Disinfection by-products Occurrence and Speciation in D Water Treatment Processes)

  • 김성준;김종민;전용태;박종은;원찬희
    • 한국물환경학회지
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    • 제26권3호
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    • pp.406-412
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    • 2010
  • Concentrations and speciations of Trihalomethanes (THMs) and Haloacetic acids ($HAA_5$) that can be formed during chlorine disinfection by-product (DBPs) in full-scale drinking water treatment plants were investigated. Jeon-ju D water treatment plant that adopted conventional water treatment processes was chosen for investigation. SUVA values according to water treatment process changes were observed from 1.3 to 2.1. The process average concentrations of THMs was 7.4 ppb, 9.0 ppb and 14.7 ppb respectively, while the average concentrations of $HAA_5$ by each process which are precipitation water, filterater water, treated water, were 15.5 ppb, 14.9 ppb and 25.8 ppb respectively. DBPs concentrations was lower in the winter than summer. The major species of THMs was chloroform and the second highest was bromodichloromethane (BDCM) and the third highest was dibromochloromethane (DBCM). In case of $HAA_5$, the rate of trichloroacetic acid (TCAA) was detected. The species disribution of THMs is related to the change of SUVA and species disribution of $HAA_5$ is related to the concentrations of bromine and injection position of chlorine and injection quantity.

동의보감(東醫寶鑑) 해독 처방에 대한 형상의학적 고찰 (HyungSang Medical Approach to Detoxification)

  • 김종원;전수형;정홍식;강경화;이인선;이상훈;김규곤;이용태
    • 동의생리병리학회지
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    • 제23권2호
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    • pp.278-287
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    • 2009
  • Ji-San, the founder of HyungSang medicine, emphasized food intake and detoxification by stating, "Korean medicine begins with detoxification." Toxin accumulates in one's body unless the internal and external conditions stay in their harmony. The accumulation of toxin is also caused by western medication or one-sided diet, and detoxification should be considered in those cases. HwangRyunHaeDok-Tang reduces fire and heat, and the lesion is likely to locate in the upper body. BangPoongTongSung-San can be used for systemic disease. IkWoon-San also reduces fire and heat but mainly focuses on promoting urination. InSamPaeDok-San has an effect of curing the external symptoms of SangHan(傷寒), in addition to detoxification. SeoGakJiHwang-Tang, SoDok-Eum, and SeoGakSoDok-Eum can resolve the heat-toxin when it is located on the surface. SibJeonDaeBo-Tang enhances the detoxifying function of human body. GhamDu-Tang and JaGeum-Jung have a general effect on detoxification.

대전시 일부 초등학교 일반교사와 보건교사의 수돗물 불소농도조정사업의 인식도조사 (A survey on the awareness of water fluoridation concentration regulation project of some elementary school)

  • 이태용;성보견;김지희;김광환
    • 한국산학기술학회논문지
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    • 제11권5호
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    • pp.1929-1935
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    • 2010
  • 본 연구는 대전광역시 초등학교 110곳을 대상으로 교사 400명에게 방문 또는 우편조사법을 실시하였다. 단순 확률 추출법으로 자기기입식 설문조사를 실시하였고, 그 중 불성실하게 응답하였거나 조사내용 일부가 누락된 자료를 제외한 총 348부를 최종분석에 사용하였다. 연구 결과를 종합해 볼 때 대전시 초등학교 일반교사들의 수돗물 불소농도조정사업에 대한 인식도를 조사하여 학생들에게 구강보건지식과 구강보건관리습관 형성에 중요한 역할을 담당하는 초등학교 교사에게 수돗물 불소농도조정사업에 대한 안정성과 치아우식증 예방 효과에 대한 교육을 실시하여 불소에 대한 정확한 지식과 긍정적인 인식을 가질 수 있도록 하며, 또한 국가나 지방자치단체에서의 제도적 행정적인 뒷받침이 필요하다고 사료된다.

육미지황원(六味地黃元)의 형상의학적(形象醫學的) 고찰 (Study about Yukmigiwhangwon in the Point of Hyungsang Medicine)

  • 강유식;이용태
    • 동의생리병리학회지
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    • 제20권5호
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    • pp.1089-1101
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    • 2006
  • Following conclusions are drawn from study about Yukmigiwhangwon through referring to literatures and reviewing in the point of Hyungsang medicine. Yukmigiwhangwon was prescribed by Jeon Eul in order to cure five kinds of flaccidity of infants, but after since then it has been basically applied to symptoms which was caused by deficiency of the kidney not only infants but also adult. The deficiency of kidney is the lack of vital essence and body fluid stored in kidney, it happens because infants are born in the conditions of lack of receiving in the womb. And it happens because adults infringe the rules of life, especially the sexual life. Main symptoms of the poverty of renal functions are emptiness of the brain marrow, dizziness, forgetfulness, tinnitus, deafness, vertigo and dim eyesight, insomnia, the low back and knees aching and limping, heat on the legs, tibia aching, nocturnal emission, dry mouth, reddened tongue and little coating or non coating of the 'tongue, weak blood meridians. the treating method is nourishing Eum and supplementing kidney. In Dongeuibogam Yukmigiwhangwon is mentioned in the parts of vital essence, blood, voice, kidney, urine, eye, ear, the low back, hair, fire, exhaustion syndrome, cough, polydipsia, infant, etc. The shapes which Yukmigiwhangwon is applied to are the Dam Body Doing deficiency of Eum due to excess of Yang, man, infant, Jung type, Fish group, reverse triangular shape, big headed man, big eared man, big mouthed man, man having prominent cheekbones, man having long waist, man having big hips, man with thick hair or white hair, man with bald on the head, etc. In color it is applied to darkish complexion, flushed tip of the nose, or flushed cheek bones. Through inquiring into the clinical cases on the points of Hyungsang medicine Yukmigiwhangwon is efficacious cure to lumbago, symptoms of tendons and bones, symptoms of eyes and ears, symptoms of respiratory organs, dermatopathia, headache, polydipsia, urinary disorders, etc.