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권오준,이은정,최웅규,손동화,이석일,정연건,지원대 한국위생과학회 2002 한국위생과학회지 Vol.8 No.2
새로운 장류제품으로서 보리등겨의 이용방안을 모색하기 위하여 간장을 만들어 연구하였다. 보리로 제조한 간장의 갈색화는 점차적으로 증가 하였으며 완만한 변화를 보였다. 향기성분으로는 4-vinyl-2-methoxy-phenol, benzeneacetaldehyde, palmitic acid, 2-furancatboxaldehyde, methyl-9, 12-octadecadienoate, di-(2-ethylhexyl)phthalate, diethyl phtalate, dibytyl-1,2-benzenedicatboxylate, 5-methyl-2-furancarboxaldehyde, 3,4-dimethyl-1h-pyrazole, phenylethyl alcohol, dioctyl-hexanedioate, dimethyl-1,2-benzenedicatboxylate, benzaldehyde, methional, 2-methoxy-phenol, n-furfurylidene-3-methylbutyl amine, 1-furfuryl-2-formyl pyrrole, tetradrcanoic acid, 5-methyl-pyrimidine, 4-methyl-5-hydroxymethyl-imidazole, maltol, 5-(5-methyl-2-furanyl)methyl-2-furancarboxaldehyde 순으로 높은 함량을 차지 하였다. For investigation of new utilization as jang-products, kanjang was prepared using barely bran. This study was conducted to investigate flavor components of kanjang during fermentation time. The optical density was gradually increased. Among the flavor components identified in kanjang made with barley bran, the contents of 4-viny1-2-methoxy-phenol was the most in quantity followed by benzeneacetaldehyde, palmitic acid, 2-furancarboxaldehyde, methyl-9,12-octadecadienoate, di-(2-ethylhexyl)phthalate, diethyl phtalate, dibutyl-1,2-benzendicarboxylate, 5-methyl-2-furancarboxaldehyde, 3,4-dimethyl-1h-pyrazole, phenylethyl alcohol, dioctyl-hexanedioate, dimethyl-1,2-benzenedicarboxylate, benzaldehyde, methional, 2-methoxy-phenol, n-furfurylidene-3-methylbutyl amine, 1-furfuryl-2-formyl pyrrole, tetradecanoic acid, 5-methyl-pyrimidine, 4-methyl-5-hydroxymethyl-imidazole, maltol and 5-(5-methyl-2-furanyl)methyl-2-furancarboxaldegyde.
횡문근융해증과 급성 신부전 및 범발성 혈관내 응고장애를 동반한 열사병 1예
최대은,박수진,권오경,이한규,이영모,이상주,나기량,이강욱,신영태 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2
Heat stroke is a life-threatening illness characterized by an elevated core body temperature that rises above 40% and central nervous system dysfunctions that results in delirium, convulsions, or coma. Heat stroke is subdivided into two forms, classic and exertional. Since strenuous exercise is one of the major exacerbating and precipitating factors, the incidence of exertional heat stroke is high among young adult, especially military personnel undergoing military training. Exertional heat stroke commonly causes rhabdomyolysis, lactic acidosis, acute renal failure, shock and pulmonary edema. We report a case of heat stroke with rhabdomyolysis, acute renal failure, disseminated intravascular coagulopathy(DIC) after strenuous exercise. A 18 year old man was admitted to the hospital because of loss of consciousness. He was a wrestler and he had tried to lose 6kg in weight by jogging and strenuous exercise on that summer day with hot temperature. The development of this illness was favoured by much clothes inappropriate for that environmental condition with a purpose to enhance sweating, and by restricted intake of water and food. On admission, the blood pressure was 80/50mmHg, and body temperature was 39.4℃ with stuporous mentality. Laboratory finding were as follows : in complete blood cell count, hemoglobin was 16.7g/dL and platelet count was 158,000/ mm³. In blood chemistry, AST 1061U/L, ALT 201U/L, BUN 30mg/dL, Cr 2.2mg/dL, LDH 941IU/L, CK 696IU/L were resulted. In arterial blood gas analysis, pH 7.39, pCO₂ 30mmHg pO₂ 86mmHg, HCO₃ 18.4mEq/L, O₂ saturation 96.7% were resulted. In urinalysis, specific gravity 1.025, protein 3+, erythrocyte 2+ were resulted. In brain imaging study, brain CT finding was normal. After appropriate treatments with rapid cooling, hydration and supportive care, he improved with alert mental status. On 2nd hospital day, in laboratory result, thrombocytopenia and coagulopathy were appeared and renal insufficiency was aggravated. So he was treated with platelet concentrate and fresh frosen plasma for DIC, and enough hydration for appropriate urine volume preservation. After all, On 22nd hospital day, he fully recovered and discharged. Nowadays, with followed for some duration, he is wellbeing with no complications.
매립이 진행중인 일반폐기물 매립지에 있어서 침출수의 성상
이재오,서정인,이철희,권대원 嶺南大學校 環境問題硏究所 1995 環境硏究 Vol.14 No.2
매립지에 있어서 매립층의 폐기물의 분해상황을 평가하기 위하여, 매립이 진행중인 매립지의 침출수의 pH, 유기물질, 질소화합물, 중금속농도의 변화를 3년간 조사하였다. 그 결과 pH는 6.7 ~ 9의 범위로 나타났으며 매립기간의 경과와 함께 증가하는 경향을 보였다. BOD 및 COD의 농도범위는 각각 1,800 ~ 25,000 mg·???, 1,700 ~ 6,000mg·???로 나타났으며, 그 유출농도는 하절기에는 증가하고 동절기에는 감소하는 경향을 보였다. T-N의 농도범위는 1,000 ~ 4,000mg·???이었으며, 매립량의 증대와 함께 그 농도는 지속적으로 증가하였으며, 질소화합물의 대부분은 ?????????의 형태로 존재하였다. 한편, T-P의 평균농도는 20mg·???였다. SS의 농도는 150 ~ 600mg·??? 이었으며, 중금속의 유출농도는 매립기간의 경과와 함께 감소하는 경향을 보였다. 이와 같은 결과로부터 본 매립지의 매립폐기물의 분해는 혐기적상태에서 주로 이루어지고 있으며, 강우에 의한 미분해성 유기물의 세출현상이 활발한 것으로 추측되었다. The purpose of this research was to evaluate the decomposition properties of refuse by analysis of landfill leachate. The leachate was analyzed in terms of pH, organic and inorganic compounds, and heavy metals for 3 years. The results are as follows; The pH of leachate ranged from 6.7 to 9. BOD and COD were measured in the range of 1,800 ~ 25,000 mg·??? and 1,700 ~ 6,000 mg·???, respectively. It showed that the seasonal variation of BOD and COD appeared to increase in summer season, to decrease with decreasing temperature. Concentration of T-N was in the range of 1,000 ~ 4,000mg·???, it increased with augment of landfill volume, and the greater part of T-N existed form of ammonium nitrogen. The SS was observed in the range of 150~600 mg·??? and the average concentration of T-P was 20 mg·???. Also, concentration of heavy metals showed that it is tend to decrease in processing phase. From these results, it indicated that refuse of this landfill was decomposed in anaerobic condition, actively. Concentration of organic compounds increased in summer season. It results in the physical washout of organic compounds by rainfall and the extension of microbial decomposition activity inside landfill.
고재걸,민경덕,최종락,오대섭,권병규,변창진,여환진,정원우 경북대학교 과학교육연구소 1988 科學敎育硏究誌 Vol.12 No.-
The purpose of this study is to develop models and instruments for teaching and assessing scientific experiments and practices. General objectives for teaching and evaluating scientific experiments and practices in secondary schools were analyzed and categorized into three domains:they were inquiry skill, scientific thinking skill, and scientific attitude. The sub-categories for each domain were constructed, and specific objectives for each general objective were also stated in terms of behavioral objectives according to Mager's suggestion. The tables of specification (content×behavior) were developed in order to assist secondary school teachers to teach and evaluate scientific experiments in class. In addition, we introduced some useful assessment techniques which can be adopted to evaluating learning outcomes of each specific objective. The sample test items corresponding to each objective were listed for practical usage in class.
Photonic quantum corral, carrier ordering, and photonic quantum dot/ring device
Kwon, O'Dae,Kim, M.J.,An, S.-J.,Kim, D.K.,Lee, S.E. Elsevier 2005 Microelectronics journal Vol.36 No.3
<P><B>Abstract</B></P><P>This study aims at firstly introducing a theoretical background of photonic quantum ring naturally formed by photonic quantum corral effect in the 3D Rayleigh–Fabry–Perot micro-cavity. This unique phenomenon is visualized as polar angle-dependent multi-chromatic emission spectra corresponding to an each lightwave with different optical paths. Also, we fabricated an H-D structure for a single PQR, i.e. single mode within a luminescent wavelength region and ultra-low threshold 16-K PQR laser array for such as free space optical interconnections.</P>