Pneumatosis intestinalis and portal venous gas secondary to gefitinib therapy for Lung adenocarcinoma

( Joo Young Lee1 ),( Hye-suk Han ),( Sung-nam Lim ),( Young Kwang Shim ),( Yong Hyeok Choi ),( Ok-jun Lee ),( Ki Hyeong Lee1 ),( Seung Taik Kim ) 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-

치과교정용 NiTi 합금계 선재의 탄성과 상변태 거동에 대한 열처리 효과

이진숙,김광만,김경남 대한치과기재학회 1997 대한치과재료학회지 Vol.24 No.1

Due to unique property of superelasticity, NiTi has been used widely since their introduction to the orthodontic specialty by Andreasen and Hillmann. But sufficent evaluation of superelasticity of domestic marketed wires has not yet been made. It has been known that heat treatment caused changes not only of elastic behavior but also of phase transformation behavior, an important factor of superelasticity. So, this study was investigated into varied ways of heat treatment of wires for orthodontic force proper for each clinical case. Each elastic behavior of 6 commercial NiTi alloy orthodontic arch wires(LG's ORTHOLLOY, G & H's Nickel Titanium arch wire, ORMCO's NI-TI and COPPER NI-TI, TOMY's SENTALLOY and 3M Unitek's Nitinol) were examined, and in order to study the effect of heat treatment on elasticity and phase transformation behavior, 3-point bending test, differential scanning calorimetry and X-ray diffraction with each wire heated at 350℃, 450℃ and 550℃ for 1hour were carried out compared with a as-recieved group. The results were as follows : 1. As a result of 3-point bending test in a control group, all wires had superelasticity and COPPER NI-TI showed the lowest maximum load as well as minimum(P<0.05). 2. As a result of 3-point bending est, except Nitinol and COPPER NI-TI, the wires in the group heated at 450℃ had lowest maximum and minimum load than that of a control group, and higher maximum and minimum load that of COPPER NI-TI in control group, and had superelasticity without and permanent deformation(P<0.05). 3. Phase transition temperature of all wires heated at 350℃ except COPPER NI-TI became higher but it became lower when they were heated at 450℃ and 550℃. 4. All wires in control group had austenite structure and when they were heated, martensite phase increased, and R phase appeared when heated at 550℃. The wires used in this study were changed in phase transition temperature, structure and elastic behavior as well by heat treatment. So this study showed that even the same kind of wire could be varied and used after heat treated, choosing proper load in accordance with each orthodontic clinic case.

고등학교 지구과학 실험실습 내용의 선정 및 개선 연구

남기상,이광호,이영범,김광호 全北大學校 敎育大學院 1984 敎育論叢 Vol.4 No.-

Based on the opinions of earth science teachers obtained by questionnaire methods(Nov.1983-Feb.1984) and, the analyses of curricula and textbooks (domestic and foreign), 44 laboratory activities for high school earth science were selected as main or important items, among which 21 were proposed as essential ones. Some items were application-tested in the attached high school. Selection was filtered through the seven criteria of selection, two most important ones of which are as follows: laboratory activities should be 1) free of temporal and spatial restrictions, and 2) directed to real objects (earth and universe), not to models, if possible. Domain of concern of earth science was divided by four main fields such as geology, atmospheric science, oceanography and geophysics,and astronomy, so that laboratory activities were grouped accordingly. For 44 items short remarks are tabulated of the methods of implementation, while for ten essential ones detailed description is presented. Situations in high schools and some propositions in relation to the laboratory activities are discussed.

건축물 풍하중 기준 산정을 위한 온라인 시스템 개발

남광현,이승수 충북대학교 건설기술연구소 2003 建設技術論文集 Vol.22 No.1

An enactment of Korean Standard Design Loads for Buildings in 2000 by Ministry of Construction and Transportation has renovated wind load standard in many aspects; the refinement of much of fundamental data on more robust and theoretical foundations and the consideration of diverse cases for wind-to-building situations. At the stage of building design, many parameters are variable, which affect the estimation of wind loads. However, the procedure of wind load estimation from the standard is very tedious and troublesome, even erroneous. Hence, the automation of the wind load estimating procedure is of importance to increase both efficiency and accuracy in engineering and business. This paper present the development of online system to estimate wind loads on buildings. The web-based program has been developed in two part: one for server side using ASP and the other for client side using HTML and Javascript. A client’s request accompanied with necessary information invokes the server-side program through network and the wind load estimation computed in the server returns in tabulated forms. Most of the fundamental data in the standard are stored in a database using Microsoft. Access, which is repeatedly used in the wind load estimation using SQL. With the developed online system for wind load estimation, it is expected that work efficiency and accuracy is increased and cost is reduced.

소파식 케이슨 방파제에 작용하는 반사파의 추정

이홍식,남광훈 중앙대학교 건설환경연구소 2001 環境科學硏究 Vol.12 No.2

유수부를 갖는 소파식 케이슨 방파제에 대한 파랑의 거동을 예측하기 위하여 파랑과 구조물의 상호작용에 관하여 연구하였다. 케이슨 외부의 전면의 유공판은 얇은 판으로 구성하였다. 유수부에 의한 에너지 소산은 Damping function에 근거하여 모형화 하였고, 포텐셜 흐름과 선형파 이론을 사용하여 경계치문제를 공식화하여, 고유함수확장 기법에 의해 해를 구하였다. 단일 유수부를 갖는 소파식 케이슨에 대하여 반사계수 및 Damping계수를 기존의 실험결과와 비교하였다. 본 연구에서의 소파식 구조물에 대한 반사율의 이론적 예측을 기존의 연구결과와 비교한 결과, 유수부내에서 Damping효과의 합리적인 선택에 의하여 이론치 및 실험치와의 결과 차이를 크게 개선할 수 있는 것으로 나타났다. Analytical solution is presented to model the interaction of linear waves with absorbing-type caisson breakwaters, which possess one perforated front in one interior fluid regions (chambers). The perforated surface is idealized as thin porous plates. Energy dissipation in the interior fluid region inside the breakwater is modelled through a damping function. Under the assumption of potential flow and linear wave theory a boundary-value problem may then be formulated to describe wave interaction with the idealized structure. A solution to this simplified problem may be obtained by an eigenfunction expansion techique and an explicit analytical expression may be obtained for the reflected wave height. Using the experimental work of previous authors, damping coefficients are determined for single chamber absorbing-type caisson breakwaters. The theoretical predictions of the reflection coefficients for the one-chamber structures using the present model are compared with those obtained from laboratory experiments by other authors. It is found that the inclusion of the damping in the interior fluid region gives rise to improved agreement between theory and experiment.

강원대학교 쓰레기 배출 및 수집 시스템에 관한 조사연구

이찬기,이해승,류돈식,남광명 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

This investigation was carried out to study generation of solid waste and collection system in the College of Engineering and College of Social Science, library, dormitory and student center of Kangwon National University. It is to supply basic data for solid waste management. Each result of investigation considers effect getting generation property, unit waste generation rate and reusing.

극화놀이가 유아의 언어 능력에 미치는 영향

이남정,김광웅 숙명여자대학교 생활과학연구소 1991 生活科學硏究誌 Vol.6 No.-

The aim of this study is to reveal the education effects of a dramatic play upon children. To approach this aim we made children perform dramatid play and analyzed the effects of dramatic plays on the language development of children who are at poor language environment in the lower class. The object of this study consists of 26 members at S kindergarten: they were randomly selected among children of the age 5 with a poor language ability and we divided them into two group, the experimental groupand the comparative group. As a device to test the language ability of children we used "The Test of Language Ability" made for children the age 4-6 by Jang Youngae in 1981. The process of the study is composed of three part: a pretest, and experiment, and a posttest. The experiment were given 3 times a week for 4 weeks which totalled 12 times. With 12 fables through 12 times we made the experimental group perform dramatic plays and the comparative one hear of storytellings. To prove that the dramatic play have the effects on the development of language ability we analyzed the results of grades before and after each experiment between the experimental group and the comparative group. The conclusions of this study are the following. First, Children who got the training of dramatic play were more progressive in the language ability than children who heard of storytellings. Second, Children who got the training of dramatic plays were more progressive in the words power than children who heard of storytelling. Third, Children who got the training of dramatic plays were more progressive in the language understanding than children who heard of storytelling. Finally, Children who got the training of dramatic plays were more progressive in the linguistic expression than children who heard of storytelling.

중심교합위와 중심위간의 변위가 하악운동에 미치는 영향에 관한 비교연구

이지훈,김광남,장익태 대한두개하악장애학회 1991 대한두개하악장애학회지 Vol.3 No.1

ABSTRACT The discrepancy between centric relation and centric occlusion have a great role on the successful prosthodontic and occlusal treatment. This study was performed to investigate the effect of the discrepancy between centric relation and centric occlusion on condylar guidance inclination and Bennett shift (immediate and progres- sive side shift). Sixteen adults who have physiologically normal occlusion and are free of TMJ dysfunction were selected. The amount of the sagittal CR-CO discrepancy in lower anterior incisor was ob- tained by Saphon Visi-Trainer. The amount of the CR-CO discrepancy in condylar level was measure.d on the individualized corrected tomography. Pantronic survey was performed by using a arbitrary hinge axis according to manufacturer's direction. All subjects were divided into two groups, group I (small) and group II (large), according to the amount of CR-CO discrepancy. At first the amount of the CR-CO discrepancy in condylar level between two gro was compared and then the condylar guidance inclination and Bennett shift be" "si-i two grou -^ were compared and analyzed. The results were as follows; 1. The average CR-CO discrepancy in lower anterior incisors was 0./'in;r: ? . i., 0.49mm anteroposteriorly, and 0.88mm in total. The average CR-CO di lar level was 0.43mm. 2. The CR-CO discrepancy measured on teeth level and condylar level were highly correlate d (p<0.01). 3. The correlation of the condylar position in the glenoid fossa between two groups was not statistically significant. 4. The large CR-CO discrepancy group showed greater amount of Bennett shift ?-nd >,, guidance inclination, but there is no statistical significancy. 5. It seems that the CR-CO discrepancy have greater effect on progressive side shift than ol""r elements of mandibular movements. Keywords: centric occlusion, centric relation, immediate side stuti. '"ressiv orbiting condylar inclination, protrusive condylar inclmatio:i.

신체활동과 부모들의 사회경제적 지위가 중등학교 학생들의 비만에 미치는 영향

남태호,조승제,이광무 釜山大學校 附設 體育科學硏究所 1994 體育科學硏究所 論文集 Vol.10 No.-

The purpose of this study was to suggest the effect of physical activity and socioeconomic status on obesity in middle school students. We measured physique, body fat(%), and the attitude on practice for obesity was determined a questionnaire test. We have come to following conclusion after examining Pusan area's 579 middle school students(male; 283 female;296). 1. Obese boys in middle school students were showing 10.9% and obese girls showing 46.2%. 2. Obese boys were knowing 83.3% themselves and obese girls knowing 59.4%. 3. Obese students in boys and girls were showing no relation with parent's obesity. 4. Obese boys in middle school students were showing 74.1% below 2hr in exercise time a week and obese girls showing 82.0%. 5. There was no relation between obese students and non-obese students according to parent's income and job. 6. Middle school girls were answered more bad conditions than boys. 7. There was no relation between obese students and non-obese students according to favorite food and food times in students. 8. There was a tendency to overeat in obese students.

葉成分과 土壤의 理化學的性質이 林木生長에 미치는 영향

李光洙,鄭永觀,朴南昌,崔載彩,姜眞擇 경상대학교 농과대학 부속연습림 2001 演習林硏究報告 Vol.- No.11

This study was carried out to analyze physical and chemical properties of soil and leaf analysis to estimating amount of tree growth in Chamaecyparis pisifera, Jinhae city, Gyeongnam province. The results were summarize as follows; As the results from analysis of relation of physical-chemical properties of soil and leaf component, the relationship p component inside soil and n component inside leaf showed positive correlation with determination coefficients(R^2=0.9986), and also relation of nitrogen component inside soil and component of Na_2O inside leaf showed positive correlation with determination coefficients(R^2=0.9987), but the relation of component Ca^2+ inside soil and component of Na_2O inside leaf showed negative correlation with determination coefficients(R^2=-0.9984), and also relation of p component inside soil and Fe component inside leaf showed negative correlation with determination coefficients(R^2=-0.7215). The results from analysis of relation of leaf component and tree growth, showed correlation of determination coefficient(R^2=0.4256) in height growth, determination coefficient (R^2=0.6248) in DBH growth, determination coefficient(R^2=0.6248,) in volume growth, respectively. In each tree growth of recent five years, N and P components showed positive correlation of determination coefficient(R^2=0.6170, 0.5780, respectively) in height growth, and also N and Na^+ components showed positive correlation of determination coefficient(R^2=0.6016, R^2=0.8727, respectively) in DBH growth, but K= component showed negative correlation in DBH growth As the results from analysis of stepwise regression to estimating amount of DBH growth, sequence of inputted variables entered in order of N, Na+, Mg++, ,and estimated equation was Y=44.791N-56.640Mg+0.6867Na-26.47, determination coefficients of 69%.