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- 저자 : 김종한(Jong-Han Kim) (검색결과 1,816 건)
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김학연,정종연,최지훈,최윤상,한두정,이미애,이장현,백현동,김천제,Kim, Hack-Youn,Jeong, Jong-Youn,Choi, Ji-Hun,Choi, Yun-Sang,Han, Doo-Jeong,Lee, Mi-Ai,Lee, Jang-Hyun,Paik, Hyun-Dong,Kim, Cheon-Jei Korean Society for Food Science of Animal Resource 2008 한국축산식품학회지 Vol.28 No.3
The objective of this study was to determine the effects of 0.6% vitamin C (VC), 5% ethanol extract of B. polyfermenticus SCD (EB), and a mixture of 0.3% vitamin C and 2.5% B. polyfermenticus SCD ethanol extract (CB) on the physicochemical properties of cooked ground pork during storage. The changes in pH of VC, EB, and CB were smaller than was observed with the control (CON, no added antioxidant). VC, EB, and CB exhibited significantly lower TBARS values than CON during storage (p<0.05). Longer storage periods resulted in higher TBARS values (p<0.05). VBN values for VC, EB, and CB were significantly lower than CON (p<0.05). The L values of CON and VC were higher than EB and CB (p<0.05). The a value of VC was significantly lower than CON, EB, and CB during storage (p<0.05). The b values of all samples significantly increased during storage (p<0.05). The addition of vitamin C and B. polyfermenticus SCD to cooked ground pork did not significantly affect sensory evaluations during the storage period (p>0.05). Further studies are needed to develop other meat products containing B. polyfermenticus SCD with acceptable physicochemical properties.
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결구상추 균핵병균(Sclerotinia sclerotioum)에 대한 길항세균의 분리 및 동정
김한우,이광렬,백정우,김현주,박종영,이진우,정순재,문병주,Kim, Han-Woo,Lee, Kwang-Youll,Baek, Jung-Woo,Kim, Hyun-Ju,Park, Jong-Young,Lee, Jin-Woo,Jung, Soon-Je,Moon, Byung-Ju 한국식물병리학회 2004 식물병연구 Vol.10 No.4
The fungus genus Sclerotinia contains a number of important plant pathogens. Vegetable growers in our country are probably most familiar with Sclerotinia sclerotiorum, the causes of sclerotinia rot on crisphead lettuce. S. sclerotiorum has a wide host range which can include lettuce as well as crops such as broccoli, cabbage, carrots, celery, beans, peppers, potatoes, stocks, and tomato. Some fungicides, including benomyl, are effective in some crops, but not all. So, we isolated a antagonistic bacteria that are active on sclerotinia rot caused by S. sclerotiorum and that can be used to control it. About 702 strains had been isolated from soil around plant roots in the field. Ten strains showed strong antifungal activity against S. sclerotiorum. In pot test for antagonistic activity, A-7 strain showed high control value against the pathogen when compared with others. The strain was, therefore, selected as a biocontrol candidate against sclerotinia rot and its biochemical properties and 16S rDNA sequence was analyzed. The A-7 strain was highly related to Bacillus subtilis and B. amyloliquefaciens. To confirm precise identification, we had performed gyr A gene sequences analysis. Its sequence had 96% similarity with B. amyloliquefaciens. Consequently, the isolate was identified as B. amyloliquefaciens A-7.
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Nd:YAG 레이저를 이용한 알루미늄도금강판의 용접성(II) - 용접부내 알루미늄의 거동 -
김종도,이정한,김기철,Kim, Jong-Do,Lee, Jung-Han,Kim, Ki-Chol 대한용접접합학회 2007 대한용접·접합학회지 Vol.25 No.4
Aluminized steel sheet is a material with excellent heat resistance, thermal reflection and corrosion resistance. It has wide applications, owing to its low cost and excellent performance, in the petrochemical industry, electric power and other energy conversion systems, etc and has attracted the attention of many investigators. But the welding of aluminized steel sheet has a problem of decreasing tensile-shear strength, caused by mixed Al in the weld. This study investigated behavior of Al and its structural properties to resolve this problem. Several analysis equipment(SEM, EDX, EPMA) were used to investigate Al element in the weld. Also microhardness tester and TEM equipment were used to find the intermetallic compound. As a result of this study, Al-rich zones existed in the weld and Fe-Al intermetallic compounds were found in these zones. At the same time, the weldability of aluminized stainless steel sheet was investigated and compared with that of aluminized steel sheet. Although there is a difference between the base metal of the low carbon steel and stainless steel, it is interpreted that a behavior of Al element in the weld is similar.
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김홍진,박수연,김종한,최정화,Kim, Hong-Jin,Park, Su-Yeon,Kim, Jong-Han,Choi, Jung-Hwa 대한한방안이비인후피부과학회 2001 한방안이비인후피부과학회지 Vol.14 No.2
Clinical studies were done treated 5 cases of patients with tinnitus, who were treated at Dept. of oriental Oph. & Otolaryngology in the hospital of Dongshin university, Kwhang-Ju, Korea, 1 2001-2. 2001. The results were as follows 1. Explaining of ear ringing, two patients said that it's like twittering and each others variously said that it's like sounds of wind or crisply 2. The periods of a contraction are different to 4 years from 3 days, also the periods of a treatment are different to 8 weeks from 3 days. But it can't be a definition of a treatment period because of stopping treatments according to cases 3. Headache, dizziness, bradyacusia are chief symptoms being caused with tinnitus at the same times. Besides, general body weakness and syncope can he caused with tinnitus. 4. In a treatment by acupuncture, needles arc fixed at TE-17(翹風), G-31(風池), SI-19(聽宮), G-2(聽會) and kanjenggyuk(肝正格), Sinjenggyuk(腎正格) according to patients. 5. Chengshimyunjatang(淸心蓮子湯), Mihudodyungsikjatang(미후도등식장탕) can be prescribed according to physical conditions of patients. 6. After treating to becom 'Excellent' was two occasions, to become 'Good' was two occasion and to become 'Poor' was two occasions. So $60\%$ of became better them before.
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김종한,Kim, Jong-Han 한국도서관협회 1970 圖協月報 Vol.11 No.1
이 원고는 지난 '69년 11월호에 게재되었든 한국의 도서관 발전계획의 계속으로서 이번으로 완재되는 것이다.(편집자 주)
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Retinoblastoma: Result of Radiotherapy
김일한,김종훈,박찬일,Kim, Il-Han,Kim, Jong-Hoon,Park, Charn-Il The Korean Society for Radiation Oncology 1990 Radiation Oncology Journal Vol.8 No.2
1980년 3월부터 1987년 8월까지 서울대학교병원 치료방사선과에서 망막아세포종으로 방사선 치료를 받았던 23예의 치료 성적을 보고한다. 20예의 편측성 종양에서, 13예는 안구적출술후 방사선치료를, 2예는 방사선치료만, 5예는 안구 적출후 동측 재발종양의 방사선치료를 받았다. 재발성 종양을 제외한 15예의 병기는 St. Jude Children's Research Hospital의 병기분류 기준에 의한 I 기(retinal)는 없고, II기(global) 5예, III기 (orbital) 8예, IV기 (cranial or metastatic) 2예였다. 양측성 종양 3예는 생후 1개월 이내에 증상이 나타났고, 진행된 종양측은 안구적출술을 시행했으며 조기 종양측은(3예 모두 I기)방사선 치료를 하였다. 시신경 절단부 또는 뇌척수액에서 종양 세포가 확인된 경우에는 항암화학치료를 병용하였다. 수술후 계획대로 방사선치료를 받은 12예의 5년 생존율은 $82.2\%$이며, 국소재발 또는 원격전이는 없었으나, 2환아(III기)의 진단시 무병상태였던 반대측 망막에서 종양이 속발하였다. 일차적 방사선 치료를 계획대로 받은 1예의 반대측 망막에서 종양이 속발하였다. 따라서 양측성 종양의 전반적 빈도는 $33\%$였다. 재발성종양 5예의 치료성적은 매우 불량하여 생존율은 $20\%$였다. 양측성 종양 3예중 2예가 무병상태로 생존하고 있다. 방사선 치료후의 변화로는 안와 연조직 위축이 관찰되었다. 방사선 치료성적은 조기 병기 또는 종양의 크기가 작은 경우에 양호하여 조기 치료가 중요하며 진단후 치료가 지연되지 않도록 함이 중요하다. Radiotherapy result was analyzed in 23 children with retinoblastoma treated in Seoul National University Hospital from 1980 to 1987. Three ($17\%$) had bilateral tumor at diagnosis. Among 20 children with unilateral retinoblastoma 13 children got radiotherapy after enucleation, 2 were treated with radiotherapy alone, and 5 were delivered with radiotherapy after relapse. Of 15 non-recurrent unilateral tumors, there were 5 stage II children, 8 stage III, and 2 stage IV by staging system proposed by St. Jude Children's Research Hospital. Chemotherapy was combined when resection margin of the optic nerve was positive or when malignant cell was found in CSF. Of 12 children who completed radiotherapy, local or distant failure was not found but 2 cases of relapse at the contralateral retina were observed. Their 5 year survival rate was $82.2\%$. Another case of contralateral relapse was detected in children who was treated with radiotherapy alone. Thus overall frequency of the bilateral disease was $33\%$. Prognosis of recurrent tumors were so poor that no cases of CR was obtained and that 3 year survival rate was $20\%$. Two of 3 bilateral cases at diagnosis were in NED status. Complication were sunken orbit only. Result of radiotherapy was so good in early stage or small bulk tumor that treatment delay after diagnosis must not be allowed.
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멤리스터의 전기적 특성 분석을 위한 PSPICE 회로 해석
김부강(Kim, Boo-Kang),박호종(Park, Ho-Jong),박용수(Park, Yong-Su),송한정(Song, Han-Jung) 한국산학기술학회 2014 한국산학기술학회논문지 Vol.15 No.2
본 논문에서는 PSPICE 프로그램을 이용하여 멤리스터 소자의 전기적 특성을 해석하였다. 멤리스터의 PSPCE 회로해석을 위한 모델링을 제안하고, 멤리스터의 전류-전압 특성을 분석하였고, 멤리스터의 입력전압에 따른 비선형 저항의 변화를 DC해석과 과도해석을 통하여 확인하였다. 또한, 멤리스터 저항의 직렬과 병렬연결에 따른 특성변화를 보았다. 한편, 멤리스터와 커패시터로 이루어진 M-C 회로를 구성하여 충전과 방전특성의 변화를 종래의 R-C회로와 비교분석하였다. 250 Hz의 구형파 입력신호 인가 시, 멤리스터-커패시터 회로의 경우에, 상승시간(Tr) 0.58 ms, 하강 시간 (Tf) 1.6 ms, 지연시간 0.6ms를 나타내었다. This paper presents a Electrical characteristics of the Memristor device using the PSPICE for circuit analysis. After making macro model of the Memristor device for circuit analysis, electric characteristics of the model such as time analysis, frequency and DC analysis according to the input voltage were performed by PSPICE simulation. Also, we made simple circuits of memristor series and parallel structure and analyzed the simulated SPICE results. Finally, we made a memristor-capacitor (M-C) circuit. charge and discharge characteristics were analyzed. In case of input pulse signal of 250 Hz, the Memristor-capacitor circuit showed delay time of 0.6ms, rising time of 0.58 ms and falling time of 1.6 ms.
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