Z-80 마이크로프로세서를 이용한 TTL IC TESTER의 설계에 관한 연구

宋永圭,金奎植,洪鳳植 충남대학교 공업교육연구소 1984 論文集 Vol.7 No.2

In this paper, detailed circuit design is given on a TTL integrated-circuit tester that can test a wide variety of 14-pin and 16-pin combinational logic systems. PIO NO.1 on the Microcomputer board is dedicated to performing the interface of key board and 7-segment display. PIO NO.2 is the major component in the chip tester. It is interfaced to the IC under test via the sockets that bring out the PIO signals to the microprocessor control system. PIO NO.2 is programmed for mode 3(control mode) operation on both of its I/O port, but PIO NO.1 is programmed for mode 0 and mode 1 The IC chip under test is automatically checked for correctness by a short program and resultant data is displayed in the 7-segment LEDs.

폐타이어 담체를 이용한 유동상 생물막공정의 고도처리 효율에 관한 연구

송창열,이택순,서규태,문병현 7개 국립대학교 환경연구논문집 공동발행 위원회 2005 공업기술연구 Vol.5 No.-

Organic and nutrient removal was investigated in a full scale fluidized phase biofilm process of 800m-(3)/day using waste tire media for domestic wastewater treatment. Various internal reciculation ratio was set as an operation condition to enhance nitrogen removal efficiency. The process operation results are as follows. Significantly high removal efficiency above 94% could be obtained by the biofilm process in terms of organics(BOD&COD_(Mn)) and suspended solid(SS). Relatively low nitrogen removal of 53% was observed at the internal recycling 100% of influent flow rate. However the removal efficiency could be increased to 70% at 200% internal recycling. The process showed also considerably high T-P removal efficiency of 80% producing effluent concentration of 0.68mg/L for 3.38mg/L influent.

신호인자와 목표치가 디지털 변수인 경우를 고려한 동적 파라미터 설계 적용(2)

송종대,황규완,배홍석 慶南專門大學 2000 論文集 Vol.28 No.1

英國 福祉國家 理念의 成立

宋奎範 西原大學校 1982 西原大學 論文集 Vol.11 No.-

고래로부터 끊임없이 반복되어 온 국가의 목적에 대한 안정은 인인의 안녕(Salus Populi) 혹은 공동의 이익, 말하자면 일반적인 복지의 도모라는 것이었다. 그런 의미에서 “모든국가는 복지국가”이며 “그 가장 개략적인 의미에 있어서 <복지국가>라는 용어는 하나의 동어 반복”에 불과하다고 말할 수도 있다. 그래서 간혹 복지국가의 이념을 추적함에 있어서 그 기원을 찾아, 엘리자베드 시대의 중상주의 정책 및 구빈법에 이르거나 독일의 경우에는 Polizeistaat-1500 년경 이후 호엔쫄레론(Hohenzollern)가의 브란덴부르크 - 프러시아(Brandenburg- Prussia)에서 발전한 국가형태를 서술할 때 흔히 쓰이는 용어 -에까지 거슬러 올라가거나 심지어 중세말의 기독교 윤리 및 봉건제의 가부장적ㆍ부정적 국가 관념에까지 나아가는 경우도 있다. 그러나 복지국가라는 용어를 이렇게 막연한 의미로 사용하여, 그 이념적 기원을 찾아 중세기까지 거슬러 올라간다는 것은 바다의 기원을 산꼭대기 나뭇잎에 맺혀 있는 이슬방울로 설명하려는 것만큼이나 부질없는 짓이며, 현대 복지국가를이해하는 데 별 도움을 주지 못하는 노력일 것이다. 현대 복지국가가 출현한 것은 불과 한 세대 남짓한 최근의 일이다. 그것은 2차대전이 끝 난 후 집권한 영국의 노동당 정부가, 이미 전쟁중에 마련되어 있던 소위 <비버리지 보고서>를 토대로 하여 광범한 사회보장제도를 확립함으로써였다. 물론 이러한 종합적인 사회보장제도가 하루 아침에 갑자기 나타날 수는 없는 일이다. 그것은 수 십년간에 걸쳐 계속된 일련의 사회개혁의 한 절정이었다. 영국의 사회정책의 역사를 살펴 볼 때 자유당이 집권했던 1906~1914년의 기간은 주요 개혁이 이루어진 두드러진 시기였다.

현무암 분말(Basalt Powder)을 첨가한 콘크리트의 물리·화학적 특성

이규영,송기범 한밭대학교 2004 한밭대학교 논문집 Vol.21 No.-

In this study, the physical and chemical properties of Basalt powder mixed concrete are investigated. Basalt powder is made by crushing hardened larva with dark green and black color which has properties of temperature resistance, chemical resistance, shock resistance, and durability. To investigate the variations of the physical and chemical properties of the Basalt powder mixed concrete, the proportioning strengths of the concrete were set to 240, 270, and 300kgf/cm². The applied amounts of Basalt powder mixed in the concrete were 10%, 20%, and 30% of the amount of cement in the concrete. The results are summarized as follows: 1. The compressive strength of concrete increases by 5 to 10% compared to the proportioning strength as the mixing ratio of Basalt powder increases. The tensile strength also increases by 10 to 30%. The bending strength also increases by 5 to 15%. 2. In high strength concrete, as the amount of cement increases, the oxidation ratio becomes greater, The oxidation ratio increases as the water cement ratio decreases. It was to show lowest oxidation ratio that the mixing concrete for 10% Basalt powder. 3. The neutralization depth decreases as the mixture ratio of Basalt powder increases. Therefore, it can be concluded that the use of Basalt powder in concrete can assist to prevent the neutralization of concrete.

글루코오스의 분해반응에 미치는 금속이온의 영향

이민규,허목,이송우,송승구 濟州大學校工科大學附屬産業技術硏究所 1991 尖端技術硏究所論文集 Vol.2 No.-

The objective of this research was to study the chemical kinetics of the decomposition of glucose in the presence of acid catalyst and metal ion. In this experiment, the range of variables investigated was covered temperature from 160℃ to 180℃ and concentration of 4% to 11%(W/V) sulfuric acid and metal sulfate concentrations, ?? to ??g㏖/l. It is shown that glucose disappearance follows a first-order reaction. mechanism and the glucose decomposition reaction is dependent on both the reaction temperature and the catalyst concentration. And the presence of chromic ion accelerates the decomposition reaction of glucose, but presence of ferric and nickel ion rarely influence the reaction.

프린지 페스티벌의 효율적 운영방안에 관한 연구

김규현,이송이 경희대학교 디자인연구원 2005 예술· 디자인학연구 Vol.7 No.2

After the invention of a direct circuit in 1958 and since then we've came to live in the 21st Century's Information Industry Age called as the second Industrial Revolution. This direct circuit overlaps with so tiny circuit patterns within small silicon pieces that are undistinguishable seeing through human eyes as a result of bonding together with culture in discovering and inventing important all science (physics, chemistry, mathematics, optical science, electronic Engineering). This phenomenon has been set as human beings start to begin drawing such diagrams unintended' and those beautiful and intense images have been achieved as a result of technological development of Microchip diagrams' possessing exactness. Point and line's peculiar spacing characteristics, repetition, exactness and color are like a few best arts of our time that are enough to give more than artistic impression as the same power of splendid patterns that inspire and induce zest to us. This study discusses with the aesthetic beauties found in the electronic products' unseen precise functions aiming at logically and intuitionally planned in small high-tech chips' diagrams.

폐허탈 및 농흉을 유발한 기관지 지방종 1예

이규진,이송주,옥철호,장태원,정만홍,김영옥,박성달 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4

저자들은 객혈을 주소로 내원한 75세 남자 환자에서 기관지내시경 육안 소견상 양성 종양이 의심 되었으나 조직 검사상 지방종을 확진하지 못하였고 악성종양을 배제할 수 없는 상황에서 종괴에 의한 왼쪽 폐의 허탈과 농흉 때문에 수술적 치료를 시행 하였으며, 수술 결과 기관지 지방종에 의한 폐허탈, 농흉 및 기관지 확장증, 이로 인한 객혈이 발생한 예가 있어 보고하는 바이다. Lipoma is a common neoplasm on soft tissues. However, bronchial lipoma is rare benign tumor. Patients with bronchial lipoma might have a malignant potential, and there were case reports of lung cancer accompanied with lipoma. Therefore, it should initially be treated by fibrotic bronchoscopy or surgery. We encountered a 75 year-old male patients with bronchial lipoma, causing hemoptysis.

골격성 Ⅲ급 부정교합자의 정모 두부규격방사선 계측학적 특징

정송우,홍성규,김정기 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.3

골격성 Ⅲ급 부정교합 환자의 정확한 진단과 분석에 있어서 삼차원적인 골격부조화의 양상이나 안면부조화의 원인을 파악하는 것은 중요하다. 본 연구에서는 정모 두부규격방사선 사진 상에서 나타나는 골격성 Ⅲ급 부정교합자의 계측학정 특성을 파악하기 위하여, 양호한 안모와 교합을 가지는 성인 남녀 정상교합자 60명을 전후방적 부조화가 심한 Ⅲ급 부정교합을 가지는 성인 남녀 60명을 대상으로 측모와 정모 두부규격방사선 사진의 투사도를 작성하여 안면 폭경, 고경, 각각의 비율, 측모계측치에 대응되는 정모계측치의 비율을 구하였고, 각각의 계측치와 비율을 비교, 분석하여 다음과 같은 결론을 얻었다. 1. 골격성 Ⅲ급 부정교합자에서 골격의 전후방적 부조화는 정상군보다 상악골길이(Cd-A)가 짧은 것보다는 하악골길이 (Cd-Gn)가 긴 것에 기인하였다. 2. 골격성 Ⅲ급 부정교합자는 정상교합자보다 긴 안모를 가지는데, 이는 상안면고경(Cg-ANS)보다는 하아면 고경(ANS-Me), 특히 하악골 고경(Cd-Me)의 증가로 인한 것이었다. 3. 골격성 Ⅲ급 부정교합자의 폭경은 단지 여자의 상·하악 대구치간 폭경(U6-U6, L6-L6)과 하악폭경(Ag-Ag)만 정상교합자보다 컸을 뿐, 이외 어떤 폭경항목도 정상과 차이가 없었다. 4. 골격성 Ⅲ급 부정교합자의 하악골 길이의 증가는 안모의 고경 특히 하안면 고경의 증가로 나타나지만, 하아골 폭경에서는 나타나지 않았다. In proper diagnosis of skeletal ClassⅢ malocclusion, it was important to know the pattern of three dimensional skeletal & facial disharmony. The purpose of this study was to obtain P-A cephalometrice characteristics in skeletal ClassⅢ malocclusion comparing with normal occlusion. The samples were consisted of 120 subjects, divided into four groups : Male normal occlusion, Female normal occlusion, Male skeletal ClassⅢ malocclusion, Female skeletal ClassⅢ malocclusion. Posteroanterior and lateral cephalogram were taken from the subjects with a x-ray apparatus(ASHAI CS90SP, Japan) and traced on acetate paper with routine manner. The transverse and vertical values from posteroanterior cephalometry, the sagittal values from lateral cephalometry and their ratio were obtained. The results were as follows : 1. The anteroposterior discrepancy in skeletal ClassⅢ group was not due to short maxillary length(Cd-A), but to longer mandibular length(Cd-Gn) than normal occlusion group. 2. The faces of skeletal ClassⅢ group were longer than normal occlusion group. It was not due to increase of upper face height(Cg-ANS) but to increased of the lower face height(ANS-Me) especially mandibular height(Cd-Me). 3. There was no difference in the facial width values between normal occlusion group and skeletal ClassⅢgroup, except upper molar width(U6-U6), lower molar width(L6-L6) and mandibular width(Ag-Ag) of female skeletal ClassⅢ group which were larger than normal occlusion group. 4. The increase of mandibular length of skeletal ClassⅢ group was reflected in the increase of lower facial height but did not have an effect on the mandibular width.

상부 조기 위암 환자의 복강경하 상부 위절제술 3례 경험

조규석,김형철,박경규,이문수,송옥평,임철완,신웅진,주종우,유기원 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Background : The reported incidence of early gastric cancer located in the upper portion of the stomach has been increasing with the recent advances in its diagnosis and screening. Recently, we have successfully performed laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without pyloroplasty on three patients with early gastric carcinoma localized to the upper third of the stomach. We describe our modification of this procedure in this report. Method : After creating an surgical pneumoperitoneum, the stomach was mobilized using laparoscopic coagulating shears. Upper half of the greater curvature and three-quarters of the lesser curvature were then dissected along with regoinal D2 lymphadenectomy. This was followed by a 5 cm, longitudinal mini-laparotomy in the upper abdomen, and the construction of the exteriorized stomach with a gastric tube measuring 20 cm long and 4 cm wide. Reconstruction with an esophagogastrostomy was performed using a circular stapler. Result : No post-operative morbidity or mortality was observed in this small series of patients. The average operative time was 250 minutes (range 220-300 minutes), and the average blood loss was 150 ml (range 90-180 ml). The mean number of lymph nodes harvested during these laparoscopic proximal gastrectomies was 24 nodes (range 22-25 lymph nodes). The average postoperative hospital stays was 7.5 days (range 7-8 days). Conclusion : Our technique of laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without phloroplasty offers a minimally invasive technique with the potential of impoving the post-operative quality of life patients with an early-stage proximal gastric cancer.