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DRAM 메모리 모듈 제작에서 MCM-L 구조에 의한 설계
지용,박태병,Jee, Yong,Park, Tae-Byung 대한전자공학회 1995 전자공학회논문지-A Vol.32 No.5
In this paper, we studyed the variables in the design of multichip memory modules with 4M$\times$1bit DRAM chips to construct high capacity and high speed memory modules. The configuration of the module was 8 bit, 16 bit, and 32 bit DRAM modules with employing 0.6 W, 70 nsec 4M$\times$1 bit DRAM chips. We optimized routing area and wiring density by performing the routing experiment with the variables of the chip allocation, module I/O terminal, the number of wiring, and the number of mounting side of the chips. The multichip module was designed to be able to accept MCM-L techiques and low cost PCB materials. The module routing experiment showed that it was an efficient way to align chip I/O terminals and module I/O terminals in parallel when mounting bare chips, and in perpendicular when mounting packaged chips, to set module I/O terminals in two sides, to use double sided substrates, and to allocate chips in a row. The efficient number of wiring layer was 4 layers when designing single sided bare chip mounting modules and 6 layers when constructing double sided bare chip mounting modules whereas the number of wiring layer was 3 layers when using single sided packaged chip mounting substrates and 5 layers when constructing double sided packaged chip mounting substrates. The most efficient configuration was to mount bare chips on doubled substrates and also to increase the number of mounting chips. The fabrication of memory multichip module showed that the modules with bare chips can be reduced to a half in volume and one third in weight comparing to the module with packaged chips. The signal propagation delay time on module substrate was reduced to 0.5-1 nsec.
정상 관동맥을 가진 이형협심증 환자에서 발생한 급성 심근경색증의 혈전용해제 치험
김응진(Eung Jin Kim),고광곤(Kwang Kon Koh),박태병(Tae Byung Park),문태훈(Tai Hoon Moon),조상균(Sang Kyoon Cho),김삼수(Sam Soo Kim),방준경(Joon Kyung Bang),이명묵(Myung Mook Lee) 대한내과학회 1994 대한내과학회지 Vol.47 No.6
Coronary vasospasm has been proposed as a mechanism of muocardial infarction, particularly in variant angina pectoris with normal coronary arteries. Plaque rupture or prolonged stasis facilitating thrombus formation has been postulated as the mechanisms of vasospasm induced myocardial infarction, Recently some reports decribed effects of thrombolytic therapy in patients with variant angina and chest pain with long duration to prevent or reduce the amount of myocardial infarction. We report two cases of patients with myocardial infarction in normal coronary artery, who were proved coronary artery spasm and were successfully managed by thrombolytic therapy.
전기손상으로 발생한 심실 세동과 간혈종을 동반한 Electric Shock 1 예
최민준(Min Joon Choi),고광곤(Kwang Kon Koh),김응진(Eung Jin Kim),박태병(Tae Byung Park),배창환(Chang Whan Bae),윤진(Jin Yoon),조철호(Cheol Ho Cho),조상균(Sang Kyoon Cho),김삼수(Sam Soo Kim),박찬섭(Chan Sup Park),서창해(Chang Hae Suh 대한내과학회 1992 대한내과학회지 Vol.43 No.3
Nowdays electrical injuries are common. Electrical injuries result from conversion of electrica) energy into heat energy as electrical current courses through tissue. The extent of injury is related to several factors such as voltage, tissue resistance, tissue susceptibility, type of current, current pathway, site, and duration of electrical contact, The heart, in particular, is liable to damage by electrical injury. Thus high voltage(>500 V, direct or alternating Current) can cause sudden death from cardiac arrest, but the low voltage(110~380 V, alternating current 50~60Hz) u in household electrical equipment aiso cause death, usually from veetric4ar fibrillation, Recently, we experienced a e of electric shock accompanied by ventricular fibrillation and hepatic hematoma. A 36-year-old ,man was adimitted to the hospital with complaints of apnea and comatose mentality ca by electric injury of 220Vo1t. The patient had ventricular fibrillation on admission to the hospital, but reverted to normal sinus rhythm after cardioversion of 200J and cardiopulmonary resuscitation immediately. The history , electrocardiographic findings and cardiac enzymes showed no evidence of myocardial injury or infarction. On 12th and 17th hospital day, abdominal ultrasonography and computed tomography scan was done to evaluate liver damage, which showed 6±4cm-siaed hepatic hematoma. The patient had no specific symptom and sign of hepatic hematoma and abnormal liver function test converted to normal range on the 15th hospit81 day. Abdominal ultrasonography was followed up 2months after discharge and demonstrated complete resolution of hepatic hematoma.
박태병,송영구,김상돈,정성택,황성철,이이형,박경주,전희선 아주대학교 의과학연구소 1996 아주의학 Vol.1 No.1
Nocardia species are Gram positive, partially acid fast, branching actinomycetes which infreguently cause illness in man. But in an immune-supressed host, it can cause opportunistic pulmonary infection first and later dissemination. There are nine species of Nocardia. Common pathogens are N. asteroides and N. brasiliensis which account for 85∼95 % of all nocardiosis. Infections by other Nocardia species are rarely reported and N. caviae accounts for only 0.5∼3% of all nocardiosis. Here we present a case of pulmonary infection with Nocardia caviae in a patient on chronic steroid therapy. The patient was a 69-year-old male with pulmonary tuberculosis 10 years ago. He habitually had taken over-the-counter steroids due to degenerative arthritis of knees. This time, he visited the hospital with fever, cough, sputum, general weakness and dyspnea of about 20-days duration. He was Cushingoid in appearance, and chest auscultation revealed crackles on both lungs. Radiologic examination showed multiple nodular opacities on the right lung. But, non-invasive studies were inconclusive. Percutaneous needle aspiration was performed for the lung lesion and Nocardia species were found on Gram stain and modified acid fast slain. Culture and biochemical study of aspirated materials concluded that N. caviae was the causative organism. Treatment was successful with ampicillin-sulbactam and trimethoprim-sulfame-thoxazole.
박찬섭,신용운,김경래,정원재,오성태,박태병,귄계숙,안병엽,주영채 대한소화기내시경학회 1992 Clinical Endoscopy Vol.12 No.1
Multiple gastric caner, now considered to be a sort of multiple primary cancer by Moertel's classification, is a special type of cancer in which two or more tumor lesions arise independently from the stomach. Although its incidence is rare and it has never been reported in Korea yet, the report of multiple gastric cancer is increasing with lengthened life survival and improved diagnostic method. We recently experienced two cases of triple gastric cancer, the one in 53-years-old male who had well differentiated adenocarcinoma(EGC IIb+c) on antrum, poorly differentiated adenocarcinoma on cardia and moderately differentiated adenocarcinoma on mid-body, and the other in 65-years-old female who had two poorly differentiated adenocarcinoma on cardia and anterior wall of low body and moderately differentiated adenocarcinoma (EGCIIc) on posterior wall of low body. Triple gastric cancer is rare, so we reported 2 cases of triple gastric cancer.
이기형,신용운,조철호,오성태,박태병,김준미 대한소화기내시경학회 1992 Clinical Endoscopy Vol.12 No.2
The incidence of gastric cancer is high in old age group and low in young age group, extremely rare in child age. So the diagnosis of gastric cancer in young age is often delayed, and this, with other factors such as poorly differentiated histopathologic tendency and rapid growing nature, makes the prognosis poorer than in other age guoup. Therefore it should always be remembered that the young who has gastric symptom may have malignancy in his stomach in spite of the age. We report a case of early gastric cancer in a 16-years old male with the review of the literature.