규소기판접합에 있어서 기공 발생

안근영,이경수,윤선진,강상원 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

미세가공기술을 위한 규소기판 접합

안근영,정귀상,이경수,윤선진,강상원 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

고농도 니켈 침출액으로부터 Na-PC88A에 의한 Co, Mn 및 Zn의 분리에 관한 연구

安鍾寬,朴慶鎬,孫廷秀,안재우 대한금속재료학회 2001 대한금속·재료학회지 Vol.39 No.12

Solvent extraction experiments for the separation of impurities from Ni-rich solution were carried out for manufacturing of high purity Ni compounds from acid leaching solution of spent Ni-Cd secondary battery. Synthesised and actual leaching solution were used as aqueous phases and PC88A saponified by sodium in kerosene were used as organic phases. The extraction order is Zn>Mn>Co>Ni and extraction percentage of metal ions was increased with an increase of the concentration of extractant, initial pH of aqueous phase and ratio of O/A The separation of Ni and other impurities was effectively accomplished at the condition of extraction stage = 1, O/A = 1, saponified percent 50%, initial pH 5.0, concentration of extractant 1.0M.

전산체계와 인터넷을 이용한 응급의료정보 활용의 효율성 분석

안력,임경수,김원 대한응급의학회 2002 대한응급의학회지 Vol.13 No.3

Purpose: To provide effective emergency care, the emergency physician should get medical information as rapidly as possible. They could get medical data within a few minutes if all the data were saved as digitalized data. We compared the time spent to get medical information and the time to make a transportation report between a computerized system and a non-computerized system. Method: The cases of 2,131 emergency patients who had been treated previously at Asan Medical Center (AMC) and who revisited the center were analyzed to compare the time spent getting previous medical information, and 241 cases of patients who were transported to another hospital after emergency care were analyzed to estimate the time spent making transportation reports and copying X-ray images. The data for the patients were estimated in two ways, using a computeriszed system and using a non-computerized one. The computeried group used the OCS (order communication system), the PACS (picture archiving communication system), the EMR (electrtonic medical record), and the web-based medical information system (http://cyber-AMC.net). Results: The time spent to get previous medical information was 33.7±5.1 seconds in the computerized group compared with 1313.2±271.5 seconds in the non-computerized group. To get the X-ray images, 17.3±9.8 seconds was spent in the computerized group, where as longer time of 1432.8±317.6 seconds was need in the non-computerized group (p value<0.01). The time spent to make a transportation report was 172.8±32.1 seconds in the computerizsed group compared with 473.8±117.1 seconds in the non-computerised group. The time spent to copy the X-ray image was 67.2±7.5 seconds in the computerised group, and 613.4±300.7 seconds in the other group )p value<0.01). Conclusion: By use of a computerized medical information system, the emergency physician can get medical information and previous X-ray images rapidly and effectively, and can make the transportation reports and slides of X-ray images quickly.

양 하지의 근력저하를 주소로 응급실로 내원한 원발성 알도스테로증 1예

안력,김원,조규종,홍정석,이미우,장성은,오세현,임경수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

A primary central nervous system lymphoma(PCNSL) is defined as a lymphoma limited to the cranial-spinal axis without systemic involvement. PCNSLs were formerly very rare, only 0.5∼ 1.2% of all intracranial neoplasms, and were usually associated with acquired immuno-deficiency syndrome(AIDS) and other immune-compromised states. Recently, there has been a clear rise in the incidence of this disease among normal individuals. We describe a 77-year-old female with hyponatremia who presented with a confused mental state. Computed tomography(CT) of the brain demonstrated a suprasellar mass with enhancement. We evaluated the basic hormonal studies and the magnetic resonance imaging(MRI). A ventricular biopsy was done, and the result was a diffuse, large, B-cell-type malignant lymphoma. She presented panhypopituitarism and partial central diabetes insipidus. She received chemotheraphy and was discharged in an improved condition. We report a case of panhypopituitarism due to PCNSL and give a review of the literature.

20대 여성의 정장의류 상표군 선호도와 구매시 평가기준

권수애,장현주,한정혜,조소영,손지희,김선화,안경은 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.6 No.2

This study is to analyze the compitition structure and the brand image of the formalwear and the preferance of the brand group among the age of 20's females. The 207 samples of 20's females who live in Cheong-Ju city. The results of this study are followed as: The market competition structre appeared in positioning map have been constituted into four groups of the "Tomboy y'sb","lollol·selly·besti-belly","VOV·o.z.o.c·Joinus",EnC·i.n.v.u". The brand-trasfer of each group may easily be taken place as each compition among these groups was much feeble. By investigating the image of the formalwear brands appeared in positioning map, it may be presented that horizontality dimrnsion is "cute-ellegance image", and verticality dimension is "mannish-feminine image". Group Ⅳ such as EnC·i.n.v.u is brand which are prefered and purechaseed by the age of 20's females, whereas the preferance and puechase of brand such as VOV·o.z.o.c·Joinus.

심폐소생술중 심실기능 및 판막운동의 평가

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.

안구적출에 따른 위둔덕의 칼슘결합단백질의 재구축 및 상호 연관성

안병수,고길석,안명수,김경주,권안성,정명섭,박춘매,조병옥,김진우,Samudra Acharya,Parmeshwar Narayan Amatya,장인엽 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.1

Background: Superior colliculus is a part of midbrain, and participates in the visual reflexes, It receives afferent fibers from optic nerve, visual cortex, and spinotectal tract. After optic deprivation, the microscopic structure of the superior colliculus changed. Calcium-binding proteins (CBPs) Play an important role in the neuronal protection, differentiation and reorganization of the central nervous system, Objectives and Methods: The effects of neonatal retinal deafferentation on a CBPs, calbindm D-28k (CB), Parvalbumin (PB) and calretimn (CR), and the existence of colocalization between the CBPs were examined immunohistochemically in the rat superior colliculus. Results: On the experimental (contralateral to enucleation) side of superior colliculus, the number of CB-immunoreactive (IR) cells was reduced (77.4% compared to control), but not fibers. The number of PB-IR neurons and fibers was also reduced on the experimental side (88.5% compared to control), In the other hand, the CR-IR cells were dramatically increased (642% compared to control), but CR-IR fibers were markedly decreased on the experimental side. The colocalization between CB-CR and PV-CR was rarely observed in the superior colliculus Conclusion: These results suggest that the changes of retinotectal projection may alter the expressional pattern of CBPs in different manners; relatively stable in CB- and PV-IR neurons and plastic in CR-IR neurons.

지역병원에서 다발성 손상환자 후송시에 문제점

김영식,안무업,임경수,황성오,조남천,강성준 대한응급의학회 1992 대한응급의학회지 Vol.3 No.2

A prospective review of 53 multiple injured patients(ISS≥16) initially treated at local community hospitals and subsequently transported more than 50km to referral emergency center was completed. All injury mechanisms were blunt, and among them traffic accidents occupied the 54.7%. Revised Trauma Score ranged from 0 to 12 (mean, 10.4) and Injury Severity Score ranged from 16 to 50 (mean, 24.3). No prior notification of patient transfer to the referring facility were received in 52(98.1%) cases, and absent or very incomplete record were evident in 44 (83.0%) cases. The quality of care during initial stabilization and transport was evaluated by ATLS guideline for airway management, cervical immobilization, breathing support, treatment of shock, fracture immobiliaztion, neurologic evaluation, secondary assessment, life-threatening deficiencies were identified in 10(18.9%) patients and serious deficiencies in 32(60.4%). Most frequent departures from these standards involved failure to place a nasogastric tube before transport(58.5%), inadequate breathing support(30.2%), inadequate cervical immobilization(24.5%) and inadequate shock treatment(17.0%). This study demonstrates the need for education of emergency physicians about priorities in trauma management and ATLS courses. Furthermore guidelines for transport and interhospital communication must be established in rural area.

폐좌상시 폐단락률과 PEEP치료의 효과

김영식,황성오,최경훈,안무업,오중환,임경수,윤정환,강성준 大韓應急醫學會 1992 대한응급의학회지 Vol.3 No.1

To evaluate the physiologic extent of pulmonary contusion and effect of PEEP therapy for pulmonary contusion, we studied 16 patients received PEEP therapy with pulmonary contusion from nonpenetrating chest trauma. Hemodynamic parameters including pulmonary vascular resistance index and intrapulmonary shunt fraction were calculated from standard measurement, and arterial oxygen tension was measured. Pulmonary vascular resistance index and intrapulmonary shunt fraction were increased in patient group. Arterial oxygen tension was decreased with increase of the intrapulmonary shunt fraction(R=0.75). Arter minimal PEEP therap(5-10 ㎝H₂O), pulmonary vascular resistance index was remained unchanged and intrapulmonary shunt fraction was decreased without significant changes of pulmonary hemodynamics. Increment of arterial tension was increased with decrease of intrapulmonary shunt fraction(R=0.43). Decreased stroke volume index suggested of cardiac injury such as cardiac contusion in patient group. These results of our study suggested that increased intrapulmonary shunt fraction caused arterial hypoxia in pulmonary contusion and arterial oxygen tension was increased as a result of reduced intrapulmonary shunt by PEEP therapy.