Genetic Toxicity Test of Nanosilica by Comet assay and Mouse Lymphoma Assay

Youn?Jung Kim(김연정),Han Seam Choi(최한샘),Dong Ge Ra Mi Moon(문동그라미),Ji Hee Kim(김지희),Hye Gyeong Jo(조혜경),Jae Chun Ryu(류재천) 환경독성보건학회 2007 한국독성학회 심포지움 및 학술발표회 Vol.- No.-

Roll-Mill을 이용한 재생 발포스티렌과 고무 Blend의 기계적 물성

윤형구,박문수,허양일 全南大學校 觸媒硏究所 1998 觸媒硏究 論文集 Vol.20 No.-

In order to recyling expended polystyrene (EPS) wastes, volume-reduced EPS and rubber (NR, SBR) blends were prepared by melting-blending in a injection molder and investigated its mechanical properties such as impact strength and tensile strength. The volume-reduction process of EPS carried out by hot-pressed at 150℃ for 10 min using a roll-mill (called RPS) and compared with a hot-wind contacting method (TPS). Impact strength of RPS/rubber blend a increase of 2-5 times as compared with TPS/rubber blends. When the contents of rubber in RPS/SBR blends were around 15 wt%, maximum tensile modulus was obtained.

고등학생들의 음란물 접촉실태 및 관련요인

윤분희,정문숙,한창현,어윤국 慶山大學校 保健福祉硏究所 2002 保健福祉硏究 Vol.7 No.-

본 연구는 성에 민감한 청소년들의 음란물 접촉 실태를 알아보기 위하여 1998년 11월 30일부터 12월 30일까지 경상남도 J시 소재 고등학교 2학년 학생 732명을 대상으로 설문 조사 분석한 결과는 다음과 같다. 음란물 접촉실태는 대상자가 가장 많이 접촉하는 음란물은 성인용 비디오(76.9%)이었고 성인용 만화(70.1%), 성인용 주간지(55.9%), 음란 컴퓨터 프로그램(51.2%), 포로노 비디오(50.3%), 포로노 잡지(34.4%) 및 포로노 사진집(28.1%) 순이었다. 인문계 학생이 가장 많이 접촉하는 음란물은 성인용 만화이었고, 실업계 학생은 성인용 비디오였으며 남학생이 여학생보다, 실업계 학생이 인문계 학생보다 음란물 접촉 경험이 더 많았다.(p<0.01) 음란물 접촉 시 특성을 보면 대부분 학생이 "중학교"때 처음 접촉했으며 접촉경로응 "친구를 통해서"가 가장 많았고, 접촉이유는 "호기심 때문에"가 가장 많았다. 제반 변수들에 따른 음란물 접촉과의 연관성을 알아본 결과 자위행위, 성 경험, 이성교제, 학생성적, 흡연, 음주는 모든 음란물의 접촉과 상관성이 있는 것으로 나타났다.(p<0.01) 음란물 접촉 유무를 종속변수로 하여 다중 로지스틱 분석을 한 결과는 남자일수록, 자위행위를 할수록, 학교 성적이 낮을수록, 담배를 피울수록, 술을 마실수록, 외향성일수록 음란물을 보는 경험이 더 많았다.(p<0.01) 이상 결과들을 볼 때, 청소년들을 음란물로부터 보호하기 위해서는 성적충동을 올바르게 표출하고 승화할 수 있도록 개개인의 취향에 맞는 운동이나 취미활동을 권장하고 이를 개발할 수 있도록 도와주어야 할 것이며 유해환경에 대한 규제를 강화하여 학생들이 살고 잇는 사회의 성문화 정화에 모두 관심을 가져야겠다. This study was conducted to examine the sex-sensitive adolescents' actual condition of contact with lecherous things from November 11th to December 20th, 1998 with 732 high school sophomores in Chinju, Kyungsangnam-do. And the results are as follows. According to the actual condition of contact with lecherous things the most lecherous thing subject group came into contact was adult videos(76.9%) and adults cartoons(70.1%), adults magazines(55.9%), lecherous computer programs(51.2%), porn videos(50.3%), porn magazines(34.4%) and porn photo collections(28.1%) in highest order. The most lecherous thing academic high school students came into contact was adults cartoons and that of business high school students was adults videos and contact experiences to it of male students and business school students were higher than those of female students and academic school students respectively(p<0.01%). In view of students' characteristics of contact with lecherous things, most students made first contact with them in their middle school years and from their friends curiosity. In the result of study of relevance to the contact with lecherous things due to all sorts of variables, it shows that masturbations, sex experiences, intersexual acquaintances, school records, smoking and drinking are related to the all contacts with lecherous things(p<0.01). In the result of Multiple Logistic Analysis with the presence of contact with lecherous things as subordinate variable, the more they are men, doing masturbations, the person with bad school records, smoking, drinking and extroversive the more they are inclined to contact with lecherous things(p<0.01). To protect adolescents from the access to lecherous things, in view of above results, we have to encourage and help adolescents to enjoy and develop sports or hobbies of their own to express and purify their sexual impulses right. And we also have to concern the purification of sexual culture of the society in which students live by strengthening our regulatory systems for unsound circumstances.

한국무용 전공자의 근 기능 특성 연구

문성철,백연옥 仁荷大學校 스포츠科學硏究所 2001 論文集 Vol.13 No.-

The purpose of this study was to find the trait on the muscle strength, power and endurance of Korean dancer in high school. 16 subjects of high school dancer(Korean dancer; 8, ballerina; 8) were recruited randomly for this experimental study. All subjects were healthy dancers with out acute or chronic injuries. Subjects were tested for knee extension and flexion, ankle extension and flexion on a Cybex-II isokinetic dynamometer of made Lumex Co. in U.S.A. The results of analysis on the data obtained from each measurement were as follows: 1.The trait of muscle strength of Korean dancer was showed to higher deficit of peak torque for knee flexion between left and right, to higher peak torque(peak torque/weight ratio) for left knee extension, to higher peak torque of left ankle flexion(peak torque/weight ratio), to lower deficit of peak torque for ankle flexion between left and right, to lower peak torque of left ankle extension(peak torque/weight ratio) and the right ankle peak torque/weight ratio, and to higher left ankle ipsilateral balance. 2.The trait of muscle power of Korean dancer was showed to higher deficit of peak torque for knee flexion power between left and right, to higher peak torque(peak torque/weight ratio) for left knee extension power, to lower deficit of peak torque for knee extension power between left and right, to higher left ankle flexion power (peak torque/weight ratio), to lower left ankle extension power(peak torque/weight ratio), and to higher deficit of peak torque for ankle extension power between left and right. 3.The trait of muscle endurance of Korean dancer was showed to higher peak torque for left knee extension endurance.

신경성 염증질환에서 지질 신호전달물질인 lactosylceramide의 역할

이윤선, 유재명, 최경미, 이용문, 홍진태, 윤여표, 유환수 충북대학교 약품자원개발연구소 2007 약학논문집 Vol.22 No.-

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기둥유사법에 의한 비대칭 변단면 사각형골조의 해석

문연준,김순철 東新大學校 1997 論文集 Vol.9 No.-

The column analogy method is most useful in the analysis of beams, curved members like arches and rigid frame with two fixed supports. The analysis of these structures by the method of consistent deformation involves the solutions of three simultaneous equations because these structures are statically indeterminate to the third degree. In the column analogy method, however, the moment at any point in the given structure can be computed directedly and easily. In this paper, only the bending moments for the unsymmetrical nonprismatic quardrangular frames are to be formulated in general expressions and to be tabulated by the computer. To see how the tabulated data are applied, one example of bending moment calculations of unsymmetrical nonprismatic quadrangular frame will be given.

주유사법(柱類似法)을 이용한 변단면 박공골조의 해석

문연준 東新大學校 工業技術硏究所 1997 工業技術硏究 Vol.3 No.-

The analysis of statically indeterminate structures by the method of consistent deformation requres much time and effort. This is especially true in the case of statically indeterminate structures with nonprismatic members. Contrary to the method of consistent deformation, the column analogy method can be effectively applied to the computation of moments at any point for the statically indeterminate structures with nonprismatic member to the third degree. In this paper, the moments for the nonprismatic gable frames are to be formulated in general expressions, and to be tabulated. To see how the column analogy method is applied, one example of bending moment calculations of nonprismatic gable frame will be given.

大麻 低마약형 신품종 "청삼"의 육성경위 및 주요특성

문윤호,이봉호,정병춘,김용웅,김길용 한국국제농업개발학회 2002 韓國國際農業開發學會誌 Vol.14 No.2

대마의 저 마약형 신품종을 육성하고자 대마초의 환각성분에 대한 국내의 문헌을 수집하여 고찰하여 저마약형 대마 신품종 "청삼(Cheungsam)"을 육성하였던 바 이것들을 요약하면 다음과 같다. 가. 목포시험장에서 1997년 네덜란드 CPRO에서 도입한 44품종의 저 마약형 유전자원중 IH3이 THC 함량이 낮고 개화일수도 한국재래종과 비슷하여 경장과 섬유수량도 다른 도입품종들에 비해 크고 많아 육종재료로 유망시 되었다. 나. 저 마약형인 IH3를 모본으로 하고 한국 재래종을 부본으로 교배한 1대잡종 품종을 육성하여 무안 등 4개 지역에서 지역적응시험을 실시한 결과 특성이 우수하고 저 마약형으로 분류되어 이를 "청삼"으로 명명하여 신품종으로 등록하였다. 다. "첨상" 품종은 섬유수량은 190kg/10a로 재래종의 177kg/10a에 비하여 7% 중수되었고, 환각성분인 THC(Δ-9-Tetrahydrocannabinol)함량이 0.34%로 재래종의 1.74%보다 적고 환각억제성분인 CBD(Cannabidiol)함량은 1.34%로 재래종의 0.57%보다 많아 저 마약형으로 분류할 수 있다. 라. "청삼" 종자를 IH3의 자웅이주종자를 이용하여 채종하면 종실수량이 103kg/10a이지만 자성종자 채종기술을 이용하여 채종하면 146kg/10a로 채종량이 42% 증가하였다. In order to develop a new variety of fiber hemp(Cannabis sativa L.) with non-drug type, the authors reviewed several literatures about marihuana or hemp, and bred a new variety with non-drug type. This variety was named as "Cheungsam" and resitered as a recommening variety in Korea. This paper introduce the breeding history and characteristics of the fiber hemp variety "Cheungsam" with non-drug type. Among the 44 introduced germplasms from CPRO, Netherland, only IH3 was suitable variety because of it's good traits including low THC content, similar flowering days to Korean local variety and good fiber yield. IH3 and Korean local variety were crossed to develop a new non-drug type hemp, and we developed a new variety named "Cheungsam". This variety have good plant characteristics and fiber yield with low THC content. The average fiber yield of "Cheungsam" was 190kg/10a in regional fiber yield trials, which was 7% higher than that of "Korean local variety". "Korean local variety" contains 1.74% of THC which is the psychoactive ingredient and 0.57% of CBD the anti-psychoactive ingredient, thus that cultivar was sorted to drug type hemp. But "Cheungsam" contains 0.34% of THC and 1.34% of CBD so that sorted as a non-drug type hemp. If farmers want to harvest more seed of "Cheungsam", using female seed of IH3 is better than that of the dioecious seed because of the high seed yield.

구조도면 자동생성 프로그램 개발에 관한 연구

문연준,김순철 東新大學校 2003 論文集 Vol.13 No.-

Last products of architectural engineering can divide into structure calculations and designs. Structural calculations and designs are using because a lot of common use programs are developed, but automatic drawing is not available. And data that is used in structural analysis is not used in drawing creation process and a lot of time and efforts are required to all of the engineers and architectural designers. Also, because primary engineer is taking charge of this, many mistake of drawing creation are made. Automatic drawing can enhance engineer's productivity and company's competitive power in construction market in the era of globalization. Therefore, in this research, I developed structure drawing automatic creation program by VB (Visual Basic) that is used recently among automation method and appled to sample model. By using this program, we can make automatically and quickly analyze and design without any mistakes.

교합-압박 골수정으로 치료한 대태골 간부 골절의 불유합

박윤수,문영완,성기선 대한골절학회 2003 대한골절학회지 Vol.16 No.2

목 적: 내고정술 후 발생한 대퇴골 간부 불유합에서 골절 부에 압박을 가할 수 있는 교합-압박 골수정(IC Nail??, Osteo, Switzerland)을 사용한 동적 압박 골 유합술의 임상적 결과를 보고하고자 하였다. 대상 및 방법: 20명, 21례의 대퇴골 간부 불유합율 교합-압박 골수정 고정술로 치료하였다. 평균 나이는 44 (18~69)세였으며, 골절 후 기준 수술까지 8에서 45 (중앙값 19)개월이 경과하였고, 추시 기간은 6에서 49 (평균 29)개월이었다. 천지료로 폐쇄적 골수정 삽입술이 10례, 개방적 골수정 삽입술이 10례, 금속판 삽입술이 1례였고 17례에서 골이식 및 동역화 (dynamization) 등 한 번 이상의 부가적 시술이 시행되었고, 과혈관성 불유합이 17례, 부혈관성이 3례였으며, 감염성은 1례였다. 시술은 골수강 확공 후 골수정 고정을 하였고, 근위부에 동적 교합 나사못을 삽입한 후 압박 나사를 이용하여 골절 부위를 압박하였고, 골이식은 하지 않았다. 결 과: 1례를 제외한 20례에서 임상적, 방사선학적 유합이 이루어졌다. 방사선학적 유합은 기준 수술 후 4에서 15 (평균 7.4)개월에 이루어졌다. 개방적 골수정 삽입술 후 1회의 골수정 치환술과 2회의 골이식을 받은 36세 남자에서 술 후 12개월까지 유합을 얻지 못했다. 결 론: 확공 후 교합-압박 골수정 삽입술은 초기 치료 방법에 상관 없이 대퇴 간부 불유합의 치료에 효과적인 방법이라 생각된다. 그런, 이전의 골수정 치환술이 실패한 무혈관성 불유합에서는 부가적인 시술이 고려되어야 할 것으로 사료된다. Purpose: To evaluate the effectiveness of a specially designed Interlocking-Compression Nail(IC Nail??, Osteo, Switzerland) which allows compression force across the nonunion site for the treatment of femoral shaft nonunions. Materials and Methods: Between Nov. 1998 and June 2002, twenty one nonunions of femoral shaft fractures in twenty patients were treated with reamed IC nails of larger diameters without bone grafting in 9 men and 11 women, 8 to 45 months after initial operations. Seventeen cases were hypervascular nonunions, 3 avascular, and 1 infected. For initial operation, 10 closed nailing, 10 open nailing and 1 plate fixation were performed. One or more additional procedures had been done in 17 cases prior to IC nailing. Results: The nonunion gap was considerably narrowed from 7.4㎜ to 3.1㎜ with IC nailing and bony unions were achieved in all but one case. The time for radiographic union was 4 to 15 months posteoperatively with an average of 7.4. Conclusion: Reamed IC Nail?? with a larger diameter is an effective procedure for femoral shaft fracture nonunion regardless of initial treatment modalities and even in 3 avascular nonunions, 2 have shown radiographic union without bone grafting. Additional procedures are to be considered in failed surgery of avascular nonunions.