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윤재철,김원,조규종,홍정석,이미우,장성은,오세현,임경수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4
Primary aldosteronism is a syndrome characterized by hypertension, hypokalemia, suppressed plasma renin activity, and elevated serum aldosterone levels. Conn first described it 1955 in association with adrenal cortical adenoma(Conn's syndrome). Today, it can be divided into at least six distinctive sub-groups. The diagnosis of primary aldosteronism is usually suspected when the patient presents with poorly controlled hypertension with hypokalemia. The main issues in the evaluation of primary aldosteronism are to differentiate an adenoma from hyperplasia and to localize the adenoma. Basic hormonal studies and computed tomographic(CT) scanning can be used effectively for that differentiation. An adenoma is one of a few potentially curable forms of hypertension, and it is best treated by removing the adrenal tumor. We experienced a case of a typical adrenal adenoma. The patient was a 37-year-old male who had experienced in both his legs over a period of several days a weakness due to hypokalemia. He was diagnosed using basic hormonal studies and adrenal CT scanning. After, he received laparoscopic adrenalectomy and was discharged with improved condition.
박상현,박재윤,구효근,김경환 경남대학교 신소재연구소 1999 論文集 Vol.11 No.-
RF-MW 혼합프로세스를 사용하여 다이아몬드 막을 만들 때, 우선 RF 플라즈마CVD법으로 실리콘 기판 위에 다이아몬드 시드를 증착시키고, 그 시드로부터 MW 플라즈마CVD법에 의해 다이아몬드 막을 성장시켰다. RF-MW 혼합프로세스를 사용하여 성장된 다이아몬드 막은 MW 프로세스만으로 성장된 막에 비해 결정입계의 크기는 작고, 조밀해졌으며, 결정성 또한 더 좋아졌다. 성장된 다이아몬드 막은 전자현미경, X-선 회절기, Raman분광기 등으로 분석하였다. In case of making the diamond films by using RF-MW mix-process, at first. diamond seeds were deposited on silicon substrate by RF plasma CVD, and then diamond layer grown by MW plasma CVD from the seeds. The grain-size of diamond films deposited by using RF-MW mix-process was smaller and denser, in addition, crystallity of diamond films was better than MW plasma CVD process. The deposited diamond films were analyzed by SEM, XRD, and Raman spectroscopy.
강윤경,김경미,김연이,박혜옥,서광희,송숙녀,이현숙,조의영 대한간호행정학회 2006 간호행정학회지 Vol.12 No.1
Purpose: This study was aimed to specify roles of nurses from the anesthesia and recovery room by analyzing nursing activities as well as anesthesia nursing during surgery. Method: The objects were 12 RNs working in the recovery room of a university hospital located in Incheon. Self-report was performed by measuring stop-watch for five days from May 17th to May 21st in 2004. Research method was designed to record the time and frequency of the nursing activity from anesthesia and recovery room based on nurses' statement and other references for five days. The data were analyzed with descriptive statistics, ANOVA, and t-test via SPSS Win 10.0 program. Result: Nursing activities in anesthesia recovery room were classified into two different characteristics such as direct and indirect nursing activity. The activities consisted of 11 direct nursing areas and 39 nursing activities in anesthesia preparation room. The indirect nursing was classified into 8 nursing areas and 32 nursing activities. The direct nursing was classified into 12 nursing areas and 55 nursing activity. Also, the indirect nursing was classified into 7 nursing areas and 21 nursing activities in recovery room. In terms of prevalence of nursing activities in the anesthesia preparation room, observation and cooperation of anesthesia was the most prevalent activity, drug and eqipment management the second prevalent, and drug administration the third. On the other hand, in the recovery room, the most prevalent activity was vital sign checking and observation, the second most prevalent activity informative activity, and the third body temperature control. Nursing activity time was recorded according to the nursing characteristics. In the anesthesia preparation room, the direct nursing spent for 8092.20 minutes was larger than the indirect nursing spent for 7198.50 minutes. Also, in the recovery room, the direct nursing spent for 2361.16 minutes was larger than the indirect nursing spent for 1134.13 minutes. 4. Nursing activity time was compared to duty shifts. In the anesthesia preparation room, the direct nursing was more prevalent on day shift and the indirect nursing was prevalent on evening shift. However, in the recovery room, both direct and indirect nursing activities were prevalent on day shift. Conclusion: The role of anesthesia and recovery room nurses was analysed according to the time, frequency, and its characteristics.
NRW-100을 이용한 H-Na, H-Mg, H-Cs, H-Cu 2성분 양이온 교환 특성
이인형,안현경,김상대,윤형준 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.1
Ion exchange if the most reliable process for removing ionic impurities and is the economic operation with reuse of the resin. Ion exchange is widely used in water and wastewater treatment, especially softening and demineralization. Ion selectivity depends on the hydrated radius, charge of ions and ionic concentration. The objective of this study is to determine the selectivity order of cations with equilibrium and column ion exchanges, and to investigate the effect of the background anion on selectivity. Cation selectivity increases with decreasing concentration and increasing charge(H^+<Na^+<Cs^+<Mg^2+<Cu^2+) in equilibrium and column cation adsorptions.
김상대,안현경,윤형준,이인형 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.2
Hydrazine is a weak base and strong reducing agent in the aqueous solution and is primarily utilized as a high-energy rocket propellant and an oxygen scavenger in boiler or feedwater. The objective of this study was to investigate the physicochemical properties and reactions of hydrazine and the catalytic and thermal decomposition by the emperature change. Hydrazine was fast decomposed with the of lower activation energy and at the higher temperature.
飮食物 堆肥 施用 따른 벼의 生育 및 土壤 化學的 特性의 變化
김성민,신동일,윤영상,안현진,강희경 公州大學校 産業開發硏究所 1999 産業開發硏究 Vol.7 No.-
This study was carried out to investigate of rice plant growth reaction and sodium action in compost by using food -waste compost in pot. From this test we on get basic data using food-waste compost in real paddy soil. Wilting by application rate food-wast compost 4ton/10a, next NaCl 90kg/10a, food-waste compost 2ton/10a. Heading stage is not different from application NaCl 60kg/10a to control pot of applicates showed from N-P-K, but applicating NaCl 90kg/10a was decreased 17%. Voltile organic acid control content was increased by applicating food-waste compost 37 days after planting from the first stage of rice growth, and applicating food-waste compost was showed more increased volitle organic acid content. Bubble was showed from food-easte compost 4t/10a application long term, is considered poison by H₂S gas at reduction environment. It is very important fact volatile organic acid was occured at food-waste compost application field 37 days after planting. So it was needed to conder4ing production process, application duration, application rates and of food-waste compost concentration, poison material and volatile organic acid.
이부수,김영식,이강현,황성오,임경수,박금수,윤정한,안무업,최경훈 대한응급의학회 1994 대한응급의학회지 Vol.5 No.2
Background : Mechanism of blood flow during cardiopulmonary resuscitation(CPR) in humans remains controversial and poorly understood, although cardiac or thoracic pump theory was proposed. We investigated cardiac movement, ventricular function and atrioventricular valve motion with aid of transesophageal echocardiography during precordial compression during CPR in humans. Methods and results : During CPR transesophageal echocardiography was performed in 14 patients with non-traumatic cardiac arrest. Manual precordial compression during CPR was performed according to American Heart Association guidelines. Mitral valve closed in 9 and did not close in 5 patients during "compression systole". Tricuspid valve closed during compression systole. Compression vector directed to right ventricle, basal portion of interventricular septum and left atrium. The heart rotated clockwise and the apex was more displaced than the base("swing motion"). Fractional shortening(FS) and ejection fraction(EF) of right ventricle exceeded those of left ventricle(FS : 55±9% vs 18±8%, p<0.05), EF : 79±9% vs 37±16%, p<0.05). FS and EF of left ventricle was higher in patients with systolic mitral valve closure than patients with persistent systolic opening of mitral valve(FS : 21±7 vs 13±7%, EF : 45±12 vs 22±12%, p<0.05), but FS and EF of right ventricle was not different. Conclusion : During precordial compression, the heart rotated clockwise and displaced. Systolic function of right ventricle exceeded left ventricle. Marked compression of right ventricle and systolic closure of tricuspid valve suggested that right ventricle functioned as a pump generating blood flow during precordial compression. Closure of mitral valve was dependant on systolic function of the left ventricle.