개에 발생한 만성 승모판폐쇄부전증에 대한 Pimobendan 치료 1례

장재임,전형규,최호정,이영원,송근호 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2006 動物醫科學硏究誌 Vol.14 No.-

A 11-year-old intact male maltese dog with respiratory distress, cyanosis and coughing was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Loud holosystolic murmur with a palpable precordial thrill was heard at the left apex region by auscultation. Left sided cardiac enlargement and mitral regurgitated flow were detected by thoracic radiography and echocardiography, respectively. Clinical signs were improved by treatment of diuretics, ACE inhibitor and pimobendan.

관상동맥경화증 환자에서 전곡섭취가 지질과산화 및 혈중 인슐린과 호모씨스테인 농도에 미치는 영향

장양수,이종호,엄영람,조은영,바현영,황재관,여익현 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.6

Global-MAHN에서 라우팅 오버헤드 개선에 대한 연구

張良根,金玄旭,李光培,吳世德,裵振勝,金在浩 明知大學校 産業技術硏究所 2007 産業技術硏究所論文集 Vol.26 No.-

In this Paper, we studied the mechanism that increases the network reliability and decreases network load in GMAHN environment based on the AODV routing protocol. This proposed algorithm is the research on the algorithm, minimizing network overhead by preventing unnecessary network overhead previously and adapting Local repair mechanism to efficient data transmission when route error happens in network, in GMAHN environment. To evaluate the proposed algorithm's performance, we analyzed the proposed algorithm and adapting in various experiment environment according to 5 experiment viewpoint such as node movement, gateway network zone, mobile node number, flow number. After evaluating the experiment, we confirmed better network improvement altogether through following result such as total average data reception rate's increase, average data transmission time's decrease, network overhead's decrease than existing GMAHN algorithm.

지식 기반 교육컨테츠 저작시스템

장재경,김호성 한국컴퓨터교육학회 2004 컴퓨터교육학회 논문지 Vol.7 No.2

e-Learning에서 교수-학습자들 간에 형성되는 지식들을 체계적으로 관리하여 효과적인 교수-학습을 수행할 목적으로 교수자들이 교수 설계 이론에 따른 다양한 강의들에 교육 컨텐츠를 보다 쉽게 저작할 수 있는 시스템을 개발하였다. SCORM 표준에 따라 학습객체 간 관계를 설정하여 저작된 컨텐츠는 학습자가 학습내용을 개념화하는데 도움을 줄 것이다. 시맨틱 웹의 RDF를 적용하여 학습객체 간의 관계를 설정함으로써 지식맵을 구성하였고, 교수자가 해당 분야에서 사용되는 단어를 등록하여 일종의 어휘사전을 만들 수 있는 온톨로지를 도입하였다. 학습자의 이해도와 성취도를 고려한 개별학습을 제공하기 위하여 도입된 상호작용점을 따라 학습자마다 개별적인 학습맵이 구성되어 학생 개인의 학습활동과 이해도를 평가할 수 있다. For the purpose of an effective instruction-learning process by systematic management of knowledge between instructor and learner in e-Learning, we have developed the authoring system in which the instructor is able to author easily on various lecture frames according to the instructional design theory. The authored contents with the relations among the learning objects based on SCORM standard would help learner to conceptualize the contents. A knowledge map is constructed on the relations among the learning objects using RDF of the semantic web. We introduce the ontology in which the instructor can make a dictionary of terminology by registering the words of the teaching area. The learning activity and comprehension of students can be assessed using each student's learning map along the interaction points which are introduced to present the individual learning by considering each student's capacity of understanding and achievement.

韓國人의 各 臟器組織中 靑酸鹽의 微量分布에 關한 硏究(Ⅱ)

張成吉,金恩浩,金英雲,李鎭勳,柳在薰,權五星,金明德,吳世珍,金由那 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

成犬의 上顎急速側方擴大後 正中口蓋縫合線 周圍組織의 變化

長時鎬,成在鉉,權五源 慶北大學校 齒科大學 1986 慶北齒大論文集 Vol.3 No.1

著者는 成犬의 上顎骨을 急速側方擴大하여 最終擴大 1 日後, 2주, 8주保定後 軟組織을 포함한 上顎口蓋部의 脫灰標本을 製作하여 光學顯微鏡으로 관찰한 결과를 다음과 같이 要約할 수 있었다. 最終擴大 1 日後 正中口蓋縫合部가 크게 離開되어 膠原纖維는 擴大方向으로 견인되어 배열되었고 2주 保定에서 針狀의 骨형성이 진행되었으며 8주 保定에서 離開된 縫合部는 新生骨의 형성으로 현저히 협소해져 對照犬과 유사한 양상을 보였다. 最終擴大 1 日後 正中口蓋縫合周圍의 粘膜纖維가 불규칙상을 보이며 擴大된 방향으로 견인되어 있었고, 血管은 軟組織의 張力으로 인해 타원형의 양상을 보였다. 8주 保定에서 膠原纖維의 배열은 對照犬과 유사하게 整然性을 회복하고 血管의 형태도 점차 회복되어 圓形에 가까왔다. 齒槽部에서는 最終擴大 1 日後 口蓋側에서 膠原纖維의 견인과 頰側의 齒槽骨에서 破骨細胞에 의한 吸收像을 나타내었으며 保定期間의 경과에 따라 점차 回復되어 8주 保定에서 對照犬과 유사한 양상을 나타내었다. The purpose of this experimental study was to observe the histomorphological changes of the surrounding tissue of the midpalatal suture during retention following rapid maxillary expansion. Four mongrel dogs were divided into four groups: control, no-retention, two and eight weeks retention. Each of the experimental and control animals was sacrified on the no-retention, two and eight weeks retention after rapid maxillary expansion and maxilla was resected. To observe with light microscope was made de calcified specimens. The results were as follows: One day after rapid maxillary expansion, midpalatal suture was separated and the bundles of collagen fiber were stretched toward expanded direction. On the two weeks retention after rapid maxillary expansion, the separated space of the midpalatal suture was reapired with new bone of spicule type. Areas of the midpalatal suture were back to the state of control group after eight weeks retention. In the surrounding soft tissue of the expanded palatal suture, the bundles of collagen fiber were irregularly arranged, stretched toward expanded directions one day after rapid maxillary expansion, back to the state of control group after eight weeks retention. At the alveolar regions, the bundles of collagen fiber were stretched in the palatal side and bone resorption by osteoclasts was observed in the buccal side. But it was replaced with the bone depository process in the eight weeks retention. It is proved histologically that strain given to palatal soft tissue by rapid expansion is removed gradually during retention period with remodeling in bone and fiber.

R.F. magnetron sputtering법으로 제조한 LaCoO₃박막의 가스감지 특성

장재영,신정호,김정규,박기철,전춘배 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

LaCoO_(3)(LCO) thin film sensors were fabricated on an alumina substrate by the r.f. magnetron sputtering. By varying the annealing temperature of the LCO films from 600℃ to 1000℃, we investigated X-ray diffraction pattern, electrical properties, and gas sensing properties of the films. The crystallinity was improved and the activation energy was increased with increasing the annealing temperature. The sensitivity of the LCO films for NH_(3) and CO gases was also increased with the annealing temperature. Sensing properties of LCO thin films were improved when the measuring temperature was 350℃ or more.

요추부 척추협착증 수술환자에서 극돌기간 연성고정물 사용군과 비사용군의 치료결과 비교

김재도,장재호 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.1

Background : To compare of the clinical and radiologic results between microscopic decompression(MD) and MD with Device for Intervertebral Assisted Motion(DIAM) in lumbar canal stenosis. Materials and Methods : The retrospective evaluation was performed after surgery of stenosis. MD with DIAM was performed in 17 cases(Group A) and MD in 20 cases(Group B). In radiologic evaluation, checked the preoperative and postoperative disc height, intervertebral foraminal dimension, lumbar lordotic angle and instability by Panjabi. In clinical evaluation, preoperative and postoperative pain was checked by VAS. Disability was checked by RMQ(Roland Morris Questionnaire) and sf-36(PF). Results : In radiologic results, disc height changed from 11mm to 13mm in Group A(11mm to 11.8mm in Group B)(p=0.669). Intervertebral foraminal dimension was changed from 20.6mm to 22.3mm in Group A(19.5mm to 20.5mm in Group B)(p=0.536). Lumbar lordotic angle was changed from 15.40 to 14.20 in Group A(14.80 to 19.50 in Group B)(p=0.033). Instability score was improved from 0.9 to 0.2 in Group A(1 to 0.2 in Group B)(p=0.642). VAS score improved in group A from 10 to 2(9 to 2 in Group B)(p=0.612). On sf-36(PF), the values changed from 34/100 to 58/100 in Group A(30/100 to 58/100 in Group B)(p=0.535). Conclusion : Using dynamic interspinous stabilizer(DIAM) appears to be a useful and effective methods in surgery of lumbar canal stenosis with better radiologic results than MD only, but lumbar lordotic angle was decreased, slightly

알코올 발효성 야생 효모의 선발 및 발효특성

장재호*, 한상민*, 이종수 배재대학교 자연과학연구소 2017 自然科學論文集 Vol.28 No.1

충남 예당 저수지부근 토양에서 분리한 야생효모 중 Aureobasidium pullulans 효모가 가장 발효능이 우수하여 최종 선발하였다. 20% 포도당을 함유한 YPD 배지에서 Aureobasidium pullulans의 발효 최적 조건을 조사한 결과 에탄올 함량은 25℃에서 7일 발효시켰을 때 가장 많은 12.6 v/v%의 에탄올을 생성하였다. In order to select alcohol-fermenting wild yeast, among thirteen strains of non-pathogenic wild yeasts from Yedang Reservior, Chungnam province, Korea, Aureobasidium pullulans P-1 was screened as a potent alcohol-fermenting yeast. Optimal ethanol fermentation condition was investigated using 20% glucose- 1% yeast extract-2% peptone(20 DYP) broth. Maximal 12.6 v/v% ethanol was produced when 20% DYP broth was fermented by 5% Aureobasidium pullulans P-1 culture broth at 25℃ for 7 days.

시멘트 종류별 콘크리트의 적산온도에 의한 강도예측에 관한 연구

장종호,나철성,김재환,김용로,길배수,남재현,김무한 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The purpose of this study is to exhibit fundamental data which can apply to quality and process management of structure concrete using special cement in the construction field investigating strength prediction by maturity method of concrete according to cement types. The activation energy value was derived from the experimental study that experimental factors were selected as W/C ratio of 45%, the kinds of cements of 3 levels of O.P.C, H.B.C, H.S.C and curing temperature of 3 levels of 5℃, 20℃, 35℃. Also, after investigating relationship between compression strength and equivalent ages of concrete according to cement types, the strength prediction was investigated by maturity method. As the above of results, differences between the prediction strength by strength prediction equation and the actual measurement strength were lower, therefore it is considered that the strength prediction by maturity method is possible not only concrete using normal portland cement but also concrete using special cement.