호텔 廚房의 施設管理에 관한 硏究

河宗明,金琪訓 진주여자전문대학 1994 論文集 Vol.17 No.-

Most hotel managers focus on food and beverage management avoiding centralizang on the room department. Since the food and beverage sales of hotel as well as food service industry grow in the meaning market volumn,research of sales promotion is processing. In the management of food and beverage management, kitchen facility is main part of cause to the costs,accordingly, cutting off costs in the Kitchen must precede kitchen planning. This study shows the necessity of kitchen planning by analysis of kitchen area and equipment's layout. So the result of study are as follow. 1. In the planning hotel, the specitified kitchen planning should be established. kitchen planning needs stecitification and balance with whole building in the hotel. Especially, it is desirable to be perform after the sufficient communication among the hotel manager,architector,and employees in the kitchen. 2. Both the planning of chooing the kitchen equipments and equipment's layout should be effectively established. Because the kitchen has many dangerous factors such a broilers, ovens and facility. Consequently, through the improvement of work productively and save of costs, effective kitchen planning should result in the promotion of profits in the hotel food and beverage management.

호텔커피숍의 메뉴가격결정에 관한 연구

河宗明,金琪訓 진주여자전문대학 1993 論文集 Vol.16 No.-

Modern hotels have grown bigger in those sizes and have made a high class in those facilities in the social, economic changes recently. Hotel management is given much more weigh food & beverage sale than room service department. accouding to situation, the sucess or failure of F & B business is determined by kind service of employees, food qualty, and atmosphere which gives consideration of customer preference, good facilities for coffee shop as well as by the accurate market analysis and positive activity of sales promotion. Therefore, the result of this study is as following ; 1. In the menu planning, it is required that are rational menu management, good location, and good facilities management. 2. In the menu pricing, it is considered that are customer' needs, sales cost, and competition of hotel. 3. In the menu pricing, it is required that are customer's orieted menu development and profit.

신경회로망을 이용한 용접잔류응력 예측 및 최적의 용접조건 선정에 관한 연구

차용훈,김하식,이연신,김덕중,성백섭 朝鮮大學校 機械技術硏究所 2000 機械技術硏究 Vol.3 No.1

The objective of the study is the development of the system for effective prediction of residual stresses using the back propagation algorithm from the neural network. The achieve of this goal, the series experiment were carried out and measured the residual stresses using sectional method. Using the experimental results, the optional control algorithms using a neural network should be developed in order to reduce than the effect of the external distribution during GMA welding processes. Also, comparison with the measured and the calculated results from the FEM(finite element method) and verification of the developed system was carried out. This system can not only help to understand the interaction between the process parameters and residual stress, but also, improve the quantity control for welded structures. Then the results obtained from this study are as follows. Through comparison between the measured and calculated results, the neural network based on back propagation algorithm is the best techniques to predict the process parameter. A new techniques which predict the process parameter such as welding voltage, arc current, welding speed using the training the raw dates, will be proposed.

아질산 노출이 이스라엘잉어 혈장내 아질산 농도 및 간장 약물대사효소에 미치는 영향

박관하,최상훈,김영길,김용호,최선남,김종배 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2

Effects of ambient nitrite, N0₂^(-), at 1, 3, 10 and 30 mg/l, on the changes of plasma nitrite/nitrate and on hepatic drug-metabolizing enzyme activity were examined in the juvenile Israeli carp, Cyprinus carpio. When the fish were exposed to 1 and 3 mg/l N0₂^(-), there was an exposure duration-dependent increase in plasma N0₂- over the 96-hr period reaching 6~7 fold excess the ambient concentration, In the fish exposed to 10 mg/l, a plateau concentration of less than 2-fold of the environment was attained in 12 hr. With 30 mg/l, however, the maximal plasma NOf was 41.25 mg/1 at 12 hr followed by a gradual decline. There was a concentration increase in methemoglobin (metHb) level in all N02^(-)-exposed groups and a significant decrease in hematocrit value in 30 mg/l group after 96-hr exposure. Apart from the blunted increase in plasma N0₂^(-) with higher N0₂^(-)(10 and 30 mg/1) exposure, the ratio of plasma N0₃^(-) to N0₂^(-) was significantly higher in these groups compared to 1 and 3 mg/l. The imbalance in the plasma N0₃^(-)/N0₂^(-) at higher N0₂^(-) exposure suggests a possible accelerated conversion of N0₂^(-) to N0₃^(-). Nitrite exposure did not affect the hepatic drug-metabolic activities in juvenile Israeli carp. All these data indicate that disposition of N0₂- differ depending upon exposed concentration and that metHb production may not be the exclusive toxic mechanism in carp

DSC를 이용한 인듐, 주석, 아연의 열물성 측정 시 승온속도와 분위기의 영향

강종봉,조범래,하영훈 경남대학교 신소재연구소 1999 論文集 Vol.11 No.-

시차주사열량계(DSC)를 이용하여 인듐, 주석, 아연의 융점과 용율열의 차이를 조사하였다. 승온속도는 5, 10, 그리고 20℃/min으로 하였고, 분위기 가스로는 아르곤, 질소, 그리고 건조공기를 사용하였다. 인듐의 경우는 융점은 질소와 공기 분위기에서 5℃/min의 승온속도에서, 용융열은 20℃/min의 승온속도에서 아르곤 분위기에서 문헌 값과 유사하게 나타났다. 주석의 경우는 융점과 용융열이 5℃/min의 승온속도에서 공기 중 분위기에서 문헌값과 유사했다. 아연의 경우는 융점은 5℃/min의 승온속도에서 공기 중 분위기였고, 용융열은 10℃/min에서 아르곤 분위기에서 유사하게 나타났다. 이 실험에서는 승온속도가 증가할수록 융점이 증가하는 것으로 나타났고, 분위기보다는 승온속도에 더 영향을 받는 것으로 나타났다. Indium, Tin, and Zinc were used to investigate the differences of the melting point and heat of fusion by the Differential Scanning Calorimeter (DSC). The heating rates were 5. 10, and 20℃/min, and the purging gases were Ar, N₂. and Air. The best results comparing to reference were obtained at the following conditions: for T_{m} of Indium, 5℃/min heating rate in N2 and Air atmosphere. for AH of Indium, 20℃/min heating rate in Ar: for T_{m} and AH of Tin. 5℃/min heating rate in Air atmosphere: for T_{m}, of Zinc, 5℃/min heating rate in Air atmosphere. for ΔH of Zinc. 10℃/min heating rate in Ar. In this study, as the heating rate increased. the melting point increased all samples. The melting point and heat of fusion were more influenced by the heating rate rather than by purging gas for all samples.

초등학교 철학(도덕/논리)교육을 위한 토론식 수업모형 탐구 : For Philosophy(Moral and Logic) Education in elementary school

이종훈,하병학 춘천교육대학교 2003 人文社會敎育硏究 Vol.6 No.-

개선된 중성염 전해공정을 이용한 모의 방사성금속폐기물의 제염

이지훈,육완이,양호연,하종현 대한방사선 방어학회 2002 방사선방어학회지 Vol.27 No.2

원자력발전소에서 주로 발생되는 금속폐기물인 탄소강을 중성염전해질인 1.7M의 황산나트륨(Na₂SO₄)과 질산나트륨(NaNO₃)을 이용하여 기존전해제염과 개선된 전해제염공정의 비교실험을 수행하였다. 양극은 인코넬, 음극은 티타늄으로 하여 상온에서 1시간동안 반응시켜 금속폐기물 모재의 weight loss, 두께변화, 전해질 내 침전물농도, SEM을 이용하여 제염전후의 금속폐기물 표면의 형상을 분석하였다. 실험결과 개선된 전해제염 적용시 전해질 종류별 전류밀도 변화에 따른 실험에서는 전류밀도가 0.1∼0.6A/cm²으로 증가함에 따라 1.7M의 황산나트륨 적용시 금속폐기물 모재의 두께변화는 0.48±0.005∼67.7±0.02um, 1.7M의 질산나트륨 적용시에는 0.06±0.005∼17.7±0.05로 나타나 같은 전류밀도에서 황산나트륨 적용시 금속폐기물 모재의 표면 제염효율이 더욱 높은 양상을 보였다. 또한 전류밀도 0.3 A/cm² 및 1.7M의 황산나트륨의 조건에서 개선된 전해제염 적용 시 9.8±0.01um의 금속폐기물 두께변화를 보여 기존전해제염 적용시인 3.7±0.03um의 금속폐기물 두께변화보다 2배 이상의 표면 제염효과를 보였다. Conventional and modified electrolytic decontamination experiment were performed in the 1.7 M solution of sodium sulfate and sodium nitrate for decontamination of carbon steel as the simulated metal wastes which have been produced in large amounts from nuclear power plants. Anode and cathode were used as inconel and titanium respectively. The reaction time and temperature were 1 hr and 25℃. The analyses were performed of the characteristics such as weight loss and thickness change of metal waste, suspended solid in electrolyte and SEM observation. In modified electrolyte decontamination system with increased current density ranged from 0.1 to 0.6 A/cm², the metal waste showed thickness changes of 0.48±0.005 to 67.7±0.02um in 1.7 M sodium sulfate and those of 0.06±0.005 to 17.7±0.05um in sodium nitrate. Metal waste in modified electrolyte decontamination system showed the thickness change of 9.8±0.01um while it reacted up to 3.7±0.03um in conventional system with 0.3 A/cm² of current density and 1.7 M sodium sulfate. Decontamination efficiencies of modified electrolytic process are much higher than that of conventional electrolytic process when both are applied to metal waste.

수열반응에 의한 비정질 알루미나의 상전이 및 물성평가

이성우,하영훈,문종수,강종봉 경남대학교 신소재연구소 2002 신소재연구 Vol.14 No.-

수열반응에 의한 비정질 활성알루미나[Al_2O_3·XH_2O(0.2<X<1.0)]의 상전이 및 물성을 알아보기 위해 수열 처리하였다. 비정질 알루미나를 일축가압 성형하여 시편을 제작한 후에 오토클레이브에서 110℃∼300℃로 각각 수열처리하였다. 수열처리로 만들어진 각각의 시편들을 400℃∼800℃로 열처리하여 밀도, 비표면적, 결정상 등의 물성을 측정하였다. 비표면적은 9∼250㎡/g, 밀도는 2.88∼3.02g/㎤으로 나타났고 110℃에서 수열처리 한 시편에서는 베마이트와 비정질상이 공존하였으나 150℃ 이상에서는 잘 발달된 베마이트상만 존재하였다. 수열처리 한 시편을 열처리 한 경우 비표면적이 30∼230㎡/g이고 3.03∼3.36g/㎤인 γ-알루미나로 전이되었음을 확인하였다. The phase transitions and properties of amorphous alumina were investigated after hydrothermal treatment was done. The specimens were prepared by press, hydrothermally treated in autoclave at 110℃∼300℃, and then the specimens were heat treated at 400℃∼800℃ range. Density, specific surface area, phase, and microstructure were investigated. The specific surface area and density were 9∼250㎡/g, and 2.88∼3.02g/㎤, respectively. The specimen hydrothermally treated at 150℃ was found to be boehmite and amorphous phase, but the specimens above 150℃ was boemite phase only. The specimens heat treated at 400℃∼800℃ were found to be γ-alumina with specific surface area and density of 30∼230㎡/g and 3.03∼3.36g/㎤, respectively.

골다공증성 대퇴골 골절의 위험인자 평가

정선관,박성훈,김혜원,이영환,윤권하,최시성,노병석,원종진 圓光大學校 醫科學硏究所 2007 圓光醫科學 Vol.22 No.1

건물내장재(석고보드,합판)의 화재성능평가

김충환,김종훈,김운형,하동명,이수경 한국화재소방학회 2001 한국화재소방학회논문지 Vol.15 No.3

본 연구는 국내와 외국의 건물 내장재 화재성능평가방법을 고찰하고 국내에는 도입되지 않은 실대 화재 실험인 Room Corner Test를 국내 내장재중 석고보드와 합판을 대상으로 그 적용성을 위한 실험을 진행하였다. 현재 국내 내장재의 평가규정은 Bench-Scale Test에 의존하고 있으나, 미국, 일본 유럽등에서는 Room Corner Test를 적용한 실질적인 재료의 화재성능평가를 시행하고 있다. 실험 결과, NFPA 265에 의한 석고보드 및 ISO 9705에 의한 합판의 성능은 양호한 것으로 판단되었다. 현재 국내 내장재에 적용되는 등급분류의 평가방법은 재료의 실제 화재성능 평가에 한계가 있으므로 향후 Room Corner Test의 적용과 더불어 Bench-Scale Test 결과를 토대로 화재성능을 예측하는 화재모델을 이용하는 평가 방법의 도입이 필요하다. The fire performance evaluation methods in Korea and overseas for interior finish materials were analysed and tested with gypsum board and plywood by using room corner test not adopted by domestic code until now. The results of gypsum board (thickness: 8 mm) and plywood (thickness: 4 mm) applying NFPA 265 and ISO 9705 test respectively are satisfied the assessment criteria. To assess a actual fire performance and classify fore hazard levels for interior finish materials, room-corner test and flame spread models should be adopted in building code and fire code to overcome limitations of current bench-scale test method. Keywords : Fire performance evaluation, Room corner test, Gypsum board, Plywood