米麥混食이 白鼠體內 脂質代謝에 미치는 影響

洪進敎,柳總根 고려대학교 의과대학 1985 고려대 의대 잡지 Vol.22 No.3

The comparative study was conducted on the effect of rice diet and rice mixed with barley(10%, 30%, 60%) diet on accumulation of adipose tissue and levels of triglyceride(TG), phospholipid(PL), total cholesterol(TC), and high density lipoprotein(HDL)-cholesterol in serum of albino rats(Wistar). 1. Adipose tissue accumulation and levels of TG, PL, TC serum in were lower in rice mixed with barley diet group than in rice diet group to the extent that the more barley was mixed with rice, the lower the levels of the above parameters. 2. HDL-cholesterol level was lower in the group where more barley was mixed with rice at 2 weeks after feeding. Rice diet group showed the highest level. 3. TC-HDL cholesterol level was lower in rice mixed with barley diet group than in rice diet group. 4. HDL-cholesterol level decreased in all the diet groups as the feeding period went, in contrast that TC-HDL cholesterol level increased gradually during the same period. 5. The average contents of NDF, ADF and lignin in barley(38% polished Convered barley) were 5.25g%, 2.078% and 1.11g%, respectivity. Based on the above observations it can be deduced that rice mixed with barley diet has the effect to suppress the adipose tissue accumulation and serum elevation of lipid level mainly by dietary fibers contained in barley to the extent that the more barley contained in diet, the more inhbitory effect it shows.

韓國産 蓼(여뀌)科 植物에 관한 本草學的 硏究 (I)

柳泓善,宋昊埈,辛民敎,金裕鎭,金台晛 한국전통의학연구소 1998 한국전통의학지 Vol.8 No.2

For the purpose of developing Korean Herbalogy with the plants of Polygonaceae which grow wild and is planted in Korea, the these and writings on herbalogy, from literature of successive generations, have been thoroughly investigative and the results obtained were as follows: 1. There were totaled to 16 genera and 156 species in Korea and among them medicinal plants are 12 genera, 47 species, some 30% in total, but the number of species may be added because of the similiar plants. 2. According to the oriental names which can be used for medical purpose, the medicinal plants belonging to the Polygonaceae family were classified as Herba 21, Radix 12, Foilum 8, Lignum 5, Flos 4, Fructus 5, Ramulus 2 and Semen 1. Thus it was noticed that Herba was the main kind. 3. According to sum of 156 species in Polygonaceae family, they were classified into Persicaria genera 63, Polygonum genera 23, Rumex genera 22, Bistorta genera 14, Aconogonum genera 6, Fagopyrum genera 5, Bilderdykia genera 4, Amblygonum genera 3, Reynoutria genera 3, Rheum genera 3, Pleuropterus genera 2, Pleuropteropyrum genera 2, Tovara genera 2, Ampelygonum genera 1, Homalocladium genera 1 and Oxyria genera 1. Thus it was noticed that Persicaria genera was the main kind, some 40.3% in total. 4. According to nature and flavour of medicinal plants, they were classified into cold, cool; 23 each, warmth, heat; 11 each, balance 11 and unidentified 5. Thus it was noticed that cold, cool is the main in nature and flavour of medicinal plants. From this result, it was revealed that the plants for medical purpose in Polygonaceae was 30% of the whole, in which HERBA was mostly abundunt and toxic plants was slightly poisonous that it will be used for clinical treatments more easily. It is considered that many experiements and clinical approaches must be continued to use Polygonaceae plants widely.

개에서의 膀胱結石 手術3例

김명철,장석진,이교영,김남중,변홍섭,박명호 충남대학교 수의과대학 동물의과학연구소 1995 動物醫科學硏究誌 Vol.3 No.-

Three dogs which show clinical signs of cystic calculi with anorexia, hematuria, stranguria, dribbling of urine, and pain in posterior abdomen, were referred, and diagnosed as cystic calculi by radiography and ultrasonography. Removal of urinary cystic calculi was performed by urinary cystotomy. Calculi, removed surgically, were analyzed chemically and microscolically. Calculi from three patient dogs were calcium carbonate in all. After the removal of calculi recurrence of urolith were not observed up to nowadays for about 4-10 months.

초음파 기법을 활용한 콘크리트 구조물의 내부 균열 검출

김태식,신동익,진교홍,진치섭 釜山大學校生産技術硏究所 2002 生産技術硏究所論文集 Vol.61 No.-

최근, 콘크리트 구조물(터널, 고가교 등)에서의 박리 및 낙하사고 등으로 콘크리트 구조물에 대한 유지관리시스템의 중요성이 재인식되었다. 콘크리트 구조물의 유지관리 및 보수시 조사·분석해야 할 가장 중요한 결함 요인은 콘크리트의 균열이다. 콘크리트의 균열은 내부에 발생하지만 구조적으로 문제가 없는 경우도 상당수 있으므로 종합적으로 분석하여 상태를 평가해야 하며 균열 상태는 폭, 깊이, 방향, 형상의 측면에서 조사 분석해야 한다. 이중 균열 깊이가 구조물의 안전거동에 미치는 영향이 큰 경우에는 콘크리트에 발생된 균열 깊이를 정확히 측정하여 정도에 따른 적절한 대책을 수립해야 한다. 본 연구에서는 콘크리트에 이미 발생된 균열의 초음파 탐상검사 방법으로 측정된 결과를 이해하기 쉽도록 3차원으로 화상처리 하는데 목적이 있다. 이를 위해, 서로 다른 균열 형상의 12가지 시험편을 제작하고 초음파 탐상검사 방법으로 균열 깊이를 측정한 후 균열 형상을 화상처리 할 수 있는 프로그램을 작성하였다. Cracks of concrete structure must be analyzed and estimated synthetically in order to have a maintenance and to insure the safety and the durability of structure. Concrete cracks have to be surveyed with respect to depth, width, shape and direction, but crack depth and shape among these items are not measured easily. Occasionally, it needs to measure the crack depth and shape of concrete structure for the purpose of evaulating the safe capacity and the necessity of repair. Therefore, experiments were carried with three-dimensional(3D) Ultra-Sonic Technique to detection and analysis crack shape in concrete and this report is performed to veritf the applicability and the accuracy of Ultra-Sonic Technique in non-destructive testing methods. Moreover, the result shows that the measurement of crack in concrete is related to the shape and angle of inclination of notch.

고지방식이가 백서 골격근 및 지방조직의 지방분해에 미치는 영향

김철희,정윤이,이성진,박중열,홍성관,김홍규,서교일,이기업 대한당뇨병학회 2002 Diabetes and Metabolism Journal Vol.24 No.6

연구배경:지방산화의 증가가 골격근에서 인슐린 저항성을 유발한다는 주장이 꾸준히 제기되어 나왔으나, 최근 제2형 당뇨병 환자나 인슐린저항성 상태에서 골격근의 지방산화능이 저하되어 있다는 보고도 있어 논란이 있는 상태이다. 본 연구에서는 고지방식이를 투여하여 인슐린저항성을 유발한 백서에서 microdialysis 기법을 이용하여 조직내의 지방분해 결과로 간질액내로 방출되는 글리세롤 농도를 골격근 및 지방조직에서 직접 측정하여 지방분해의 변화를 알아보고자 하였다. 방법:정상 Sprague­Dawley 백서를 두 군으로 나누어 4주간 고지방식이 및 저지방식이를 투여하였다. 4주간 기저상태 및 고인슐린 정상혈당 클램프 중의 골격근 및 지방조직에 microdialysis probe를 삽입하고 일정한 농도의 글리세롤을 포함하는 dialysate를 통과시켜 주입액과 유출액의 글리세롤 농도 차이로부터 조직 간질의 글리세롤 농도를 산출하엿다. 결과:기저상태에서 골격근 및 지방조직 간질의 글리세롤 농도는 저지방식이군에 비하여 고지방식이군에서 유의하게 낮았다. 고인슐린 정상혈당 클램프 중에는 골격근 및 지방조직 간질의 글리세롤 농도가 양군에서 모두 억제되었는데, 기저 상태와 마찬가지로 골격근 및 지방조직 모두에서 저지방식이군보다 고지방식이 군에서 더 낮았다. 기저 상태에 대한 고인슐린 클램프중의 글리세롤 방출 억제 정도는 저지방식이군에 비하여 고지방식이군에서 덜 억제되는 경향을 보였는데, 골격근조직에서만 통계적으로 유의하였다. 결론:본 연구 결과는 고지방식이에 의한 인슐린저항성 모델에서 골격근 및 지방조직내 지방분해가 억제되어 있음을 보여주며, 기존의 포도당­지방산 cycle 이론과는 달리 조직내 지방산화의 증가보다는 지방산화능의 감소에 따른 세포내 지방축척이 인슐린저항성과 관련될 가능성을 시사하였다. Background : It has been hypothesized that increased fat oxidation reduces glucose utilization in skeletal muscle, and is responsible for the insulin resistance associated with obesity or high-fat feeding. In contrast, there have been reports that fat oxidation capacity was decreased in skeletal muscles from insulin resistant subjects. This study was undertaken to examine whether insulin resistance in high-fat fed rats is associated with increased lipolysis in skeletal muscle and adipose tissue. Methods : Two groups of Sprague-Dawley rats were fed either high-fat or low-fat diets for 4 weeks. Lipolysis in skeletal muscle and adipose tissue was determined by measurement of interstitial 1 glycerol concentrations by a microdialysis method in basal and hyperinsuline mic-euglycemic clamp conditions. Results : In basal state, plasma glycerol levels and interstitial glycerol concentrations of skeletal muscle, and adipose tissue were lower in high-fat fed than in low-fat fed rats. The degree of suppression of glycerol release by the hyperinsuline mia was smaller in the high-fat diet than in the low-fat diet group. However, plasma and interstitial glycerol concentrations during the hyperinsuline mic euglycemic clamps were also lower in the high-fat diet group. Conclusion : Lipolysis was decreased in skeletal muscle and adipose tissue of insulin resistant, high-fat fed rats. These results support the idea that limited fat oxidation capacity resulting in lipid accumulation in tissues, rather than increased fat oxidation perse, is responsible for the insulin resistance associated with high-fat feeding (J Kor Diabetes Asso 24:641~651, 2000).

A RECOVERY METHOD USING DELAYED FRAME AND ITS PERFORMANCE EVALUATION

Kyo Hong Jin,Jung Tae Lee,Hong Shik Park 한국통신학회 1995 Asia-Pacific Conference on Communications Vol.2 No.1

WDM 기반 단일 홉 구조에서 광 물리매체 액세스 제어 프로토콜의 구비요건 분석

진교홍(Jin. Kyo-Hong) 동의대학교 정보통신연구소 2001 정보통신연구지 Vol.1 No.-

This paper describes the mechanism of existing several WDM(Wavelength Division Multiplexing)-based MAC(medium Access Control) protocols, which shows their characteristics and analyzes the requirements for the MAC protocol in the Optical Internet environments. The requirements lists are supporting variable-length parkets and priority service among network nodes, supporting instant scalability coping with growing IP traffics, simplicity of algorithm, quantity of hardware per node, high throughput and fast access time, etc.. And the existing MAC protocols are analyzed with the proposed requirement lists.

Multicast Group Partitioning Method Applicable to CDN in WDM Network

진교홍(Kyo-Hong Jin) 동의대학교 정보통신연구소 2002 정보통신연구지 Vol.3 No.-

Content delivery network (CDN) is a mechanism to deliver multimedia content to end users on behalf of web content providers. Provider's content is distributed from content server to a set of delivery platforms located at Internet service providers (ISPS) through the CDN in order to realize better performance and availability than the system of centralized provider's servers. Multicasting the multimedia content usually requires broader bandwidth than unicasting service and accordingly WDM broadcast network has been highly recommended for the infrastructure network of CDN. Although the WDM broadcast network easily supports the multicast service, multicast partitioning problem must be resolved to reduce the receiver's waiting time and the number of transmission. In this paper, we propose methods for partitioning a multicast group into smaller subgroups and for scheduling a separate transmission for each of these subgroups. The proposed algorithms reduce the workload of content server and also decrease the receivers' waiting time by using the previous status of receivers.

WDM방송망에서 새로운 멀티캐스트 스케줄링 알고리즘의 설계 및 성능평가

진교홍(Kyo-Hong Jin) 동의대학교 정보통신연구소 2002 정보통신연구지 Vol.2 No.-

In this paper, new multicast scheduling algorithms are proposed for the WDM single-hop broadcast-and-select networks. The existing multicast scheduling algorithms are focused on the partitioning a multicast group into several subgroups to reduce the delay time of each receivers. These partitioning algorithms are grouping method of the receivers already tuned to the transmitters wavelength. However, these algorithms ignore the state of receivers, which leads to increase the number of subgroups and the delay time. Therefore, we propose two new multicast scheduling algorithms called H_EAR and PGM that partition a multicast group to subgroups using the tunable transmitter, state information of receivers, and pseudo group concept. The performance of proposed algorithms are evaluated through the computer simulation. They show the better performance comparing with the existing multicast algorithms.

Small-Gap을 이용한 가스차단기에서의 열가스 속도측정에 관한 연구

鄭鎭敎(Jin-Kyo Chong),金烘?(Hong-Kyu Kim),宋基東(Ki-Dong Song),朴敬燁(Kyong-Yop Park),洪正杓(Jung-Pyo Hong) 대한전기학회 2006 전기학회논문지 B Vol.55 No.3

SF? gas circuit breakers are widely used for short circuit current interruption in EHV or UHV power system. For a SF? gas circuit breaker development, the hot gas velocity measurement is necessary during SF? gas circuit breaker s trip operation. Small-gap flashover characteristics are used for tills hot gas velocity measurement. This study sho ws the hot gas velocity measurement results during SF6 gas circuit breaker' trip operation.