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홍인서,곽유리나,하유민 (사) 한국생물환경조절학회 2023 생물환경조절학회지 Vol.32 No.4
In recent years, fine and yellow dust pollution has become serious in Korea and has negatively affected crop production. Particulate matter (PM) adheres to greenhouse coverings, and it reduces the amount of solar radiation transmitted into a greenhouse. A reduction in light transmittance can have a direct effect on crop photosynthesis and an indirect effect on air temperature in a greenhouse, which can lead to differences in crop yield. The objectives of this study were to investigate the changes in light transmittance of different cover materials by PM and to determine the changes in cucumber growth in a greenhouse due to reduced light transmittance. We measured the changes in light transmittance of polyethylene (PE) and polyolefin (PO) films in the PM generation chambers. Also, cucumber plants were cultivated in a greenhouse with four different light reduction treatments (0, 10, 20, and 30% reduction of light transmittance). The initial light transmittance of PO film was higher than that of PE film and the decrease in light transmittance of PO film due to PM was less than that of PE film. The vegetative growth of cucumber was promoted under the reduced light transmittance treatments; however, the yield of cucumber was highest in the control (0% reduction of light transmittance). From the results, we confirmed that PO film was less PM adhesion and that cucumber yield during the spring season can be reduced by the reduction in light transmittance due to PM.
환자 맞춤형 대뇌동맥륜의 형상 조건에 따른 혈류역학 인자 분석
홍인의(Ineui Hong),오제훈(JeHoon Oh) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The Circle of Willis (CoW) is responsible for supplying blood form the heart to the cerebral arterioles and capillaries. Since CoW has a ring-like shape, three inlets (left & right internal carotid artery and basilar artery) and several outlets (middle cerebral artery, anterior communicating artery and posterior cerebral artery), it is difficult to analyze blood circulation and hemodynamics factors in blood vessels with an invasive method. To overcome difficulty, the computational fluid dynamics (CFD) is used for hemodynamics analysis. To analyze hemodynamics parameters, previous studies don’t consider the shape of CoW, but only the disease occurrence or the region of interest (RoI). In this study, Using CoW model and RoI model, comparing hemodynamics factors such as 3D streamline, wall shear stress and pressure according to models.
홍인이(In Iy Hong),최수근(Soo Keun Choi) 한국조리학회 2014 한국조리학회지 Vol.20 No.1
The purpose of this study is to develop value-added functional gruel by adding fresh burdock & burdock powder. For burdock, we put fresh burdock (1.0, 2.0, 3.0, 4.0%) and burdock powder(0.3, 0.6, 0.9, 1.2%) into burdock gruel and get results from mechanical tests and sensory tests. Moisture content of fresh burdock gruel increased with more addition of fresh burdock, while burdock powder gruel had less moisture content as the addition of burdock powder increased. Lightness and pH decreased in both groups as more amount of burdock was added. From the result of an attribute difference test, 4% fresh burdock gruel showed the strongest burdock flavor and astringent taste. Among the burdock powder groups, the gruel added with 1.2% burdock powder scored the highest point in color intensity, graininess, savory taste, astringent taste, thickness and aftertaste. For overall acceptability, the gruel added with 3% fresh burdock scored the highest point and the gruel added with 0.6% burdock powder was the highest among the burdock powder groups. Based on the results of this study, the gruel added with 0.6% burdock powder and the gruel added with 3% fresh burdock were the optimum for their good characteristics and overall acceptability when produced.
洪仁義 충남대학교 경영대학원 1978 經營學論文集 Vol.5 No.-
PERT developed in the United States is widely utilized for scheduling and shortening the work schedule in the fields of production management. Such sophisticated types as PERT/COST, MCX, and so on handling moneyvalues are only used for cost management but they are not developed to have linkage with profit management for total management view point. Being partial optimum can not be identified by total business optimum, total management system should be prepared and operated in pursuit of ultimate business goals in a total business point of view. Since profitabilty's being regarded as ultimate business goal, PERT should be improved in order to expect desirable effects from the stage of micro and partial management system to the stage of having linkage with profit management system. Shortening the time and downing the cost which can not improve profit rate of invested capital is no more than ineffective behaviors. But a little increase of cost and capital profit rate would be desirable and reasonable to business goal. As it was revealed in this study. cost was increased by shortening the schedule but the capital profit rate was improved by creating reinvestment opportunities and increasing sales volume. Financial analytic rule of PERT should be formed on the basis of profit management and PERT operation system should be prepared on the basis of objective profit rate. And on every stage of shortening the schedule. PERT should be checked financially and bettered to attain objective profit rate. This study tried to search forthe rules of measuring the effect in the financial point of view by analyzing the relevant literature and reallistic data.
족삼이혈(足三里穴) 전침 자극이 유문부 부분폐색이 된 흰 주의 위(胃) 배출능에 미치는 효능
홍인아,윤상협,Hong, In-A,Yoon, Sang-Hyub 대한한방내과학회 2009 大韓韓方內科學會誌 Vol.30 No.1
Objective : The aims of this study were to observe how body weight and gastric morphology were changed and whether gastric emptying was impaired in rats with partial pyloric obstruction. and to evaluate whether electroacupuncture was able to restore delayed gastric emptying. Methods : Partial pyloric obstruction was induced by wrapping a nonabsorbable rubber ring around the 1st portion of the duodenum for 2 weeks. Body gain and morphologic changes of stomach were investigated and compared with normal intact rats. Gastric emptying was measured by numbering expelled glass of beads in rats. Rats were divided into 4 groups(non-acupuncture, manual acupuncture. 3Hz-electroacupuncture. 60Hz-electroacupuncture). Stimulus intensity in two electroacupuncture groups was 1.2 times of pain threshold. Results : Partial pyloric obstruction produced a significant loss of body weight and induced a significant increase of gastric surface area. The 60Hz electroacupuncture-stimulated group significantly restored the delayed gastric emptying compared to the other groups of rats with partial pyloric obstruction. Conclusion : 60Hz electroacupuncture stimulation on Zusanli(ST36) showed significant restoration of delayed gastric emptying in rats with partial pyloric obstruction.
기능성 소화불량증 환자의 위장관 부교감 신경, 위 유문부의 기능 및 임상양상에 대한 조사 (한방병원 내원 환자를 중심으로)
홍인아,윤상협,Hong, In-A,Yoon, Sang-Hyuh 대한한방내과학회 2008 大韓韓方內科學會誌 Vol.29 No.3
Objectives : The aim of this study was to evaluate gastrointestinal parasympathetic nerve activation and pyloric valve function in patients with functional dyspepsia through analysis of bowel sounds and to investigate clinical characteristics associated with the parameters of bowel sounds. Method : We surveyed clinical characteristics of patients by using a questionnaire about functional dyspepsia. Bowel sounds were recorded for 15 minutes during fasting state and for 40 minutes during postprandial state. We then classified the patients into 3 groups by abnormal states of bowel sounds, specifically by the percentage of B.S. and dominenet frequency, and studied clinical characteristics in each group. Results : Among the 182 subjects, patients who had low activity of parasympathetic nerve were 25.8% and showed a tendency of female-dominant, family history and more frequent abdominal pain. Those who had pyloric valve disturbance were 24.1% and showed no tendency by sex distribution, family history and complained of indigestion sensation. Patients who had both disorders were 10.9%, and their clinical characteristics were non-specific. Conclusion : Analysis of bowel sounds may be useful in evaluating pathophysiological factors of functional dyspepsia.