지하철의 사상사고 및 운전장애 분석에 관한 연구

이동훈,목연수,장성록,권혁무,윤원영,옥영석,최용석,배동철 한국산업안전학회 1999 한국안전학회지 Vol.14 No.3

The purpose of this study is to analyze death injuries and operation troubles of urban transit. No difference was shown in death rates between Line 1 of Pusan urban transit and Line 5, 7, and 8 of Seoul metropolitan transit. And relief time by another train did not depend upon the number of crews. We concluded that thorough inspection and preventive maintenance of trains and facilities are necessary for safe and timely service of urban transit.

크롬 피콜린산 또는 카르니틴이 첨가된 사료급여가 비육돈의 성장 및 도체특성에 미치는 영향

김지훈,한인규,김대성,배극환,양종석,손현수,현영 한국영양사료학회 1999 韓國營養飼料學會誌 Vol.23 No.5

본 시험은 여러 가지 광물질과 혼합된 크롬 피콜린산이나 카르니틴을 첨가한 사료의 급여가 비육돈의 성장 및 도체특성에 미치는 영향을 조사하기 위하여 실시되었다. 평균체중 60.69±1.11 kg인 삼원교잡종 (Yorkshire×Landrace×Duroc) 비육돈 암수 180마리를 대조구, CFC{CrP + Fe₂O₃ + CaCO₃}, CFZC{CrP + Fe₂O₃ + ZnO + CaCO₃}, CZC-1 {CrP (1/300) + ZnO(9/300) + CaCO₃(290/300)}, CZC-2(CrP(1/300) + ZnO(14/300) + CaCO₃ (285/300)} 그리고 카르니틴구 등 6처리구에 성별로 배치하였다. 크롬 피콜린산이나 카르니틴에 의한 성장개선은 발견되지 않았다. 수퇘지에 있어서는 CFZC 처리구가 CZC-2 처리구보다 유의적으로 사료효율이 좋았다 (p<0.05). 도체특성에 있어서도 전체적으로 처리구간의 유의적인 차이는 발견되지 않았으나, 수퇘지에서는 CFZC 처리구가 대조구에 비해 등지방두께가 않았고 (p<0.05), 가장 좋은 도체등급은 CZC-2 처리구에서 나타났다. A study was conducted to investigate the effect of feeding diets containing chromium picolinate (CrP) or carnitine on growth and carcass characteristics in finishing pigs. A total of 180 cross bred pigs (Yorkshire x Landrace x Duroc; initial body weight of 60.7±1.1 kg) were assigned to 6 treatments : Control, CFC{CrP + Fe₂O₃ + CaCO₃}, CFZC{CrP + Fe₂O₃ + ZnO + CaCO₃}, CZC-1 {CrP (1/300) + ZnO(9/300) + CaCO₃(290/300)}, CZC-2(CrP(1/300) + ZnO(14/300) + CaCO₃ (285/300)} and camitine. No significant improvement was found in average daily gain (ADG), average daily feed intake (ADFI), and feed/gain ratio (F/G) by feeding diets containing chromium picolinate. The feed efficiency of male pigs fed with CFZC was better than pigs fed CZC-2 diet during the entire period (p<0.05). No differences were found in carcass characteristics between treatments expect that backfat thickness was reduced in male pigs fed the CFZC diet compared to the control (p<0.05). The best carcass grade was found in pigs fed CZC-2 the diet.

신장의 이상회전과 T2Hemivertebra 를 동반한 선천성 일측폐 발육 부전증 1 예

성차경,배성조,강민구,허경억,이대규,도사금 대한내과학회 1986 대한내과학회지 Vol.31 No.2

A case of congenital agenesis of left lung of a 19-years-old female is presented in detail with some review of literature. She had been suffered from mild dyspnea on exertion since early childhood but she was been comfatable unti16 months ago, when frequent upper respiratory infection and dyspnea developed. From 10 days earlier, mild fever was associated and dyspnea on exertion was aggravated. Her past history and family history were not contributary. Physical examination revealed asymmetrical development of both thoracic cage and showed limited respiratory movement of left thorax. There were increased percussion dullness and absent breathing sounds over entire left lung field except left upper lung field. The cardiac dullness was shifted to the left and heart sunds were heard over the 4th ICS X MCL. A roentgenogram of the chest revealed shifting to the left of trachea and mediastinum, homosgenou increased density of left lung, hyperlucency of right lung, and T, hemivertebra, Bronchoscopy showed total absence of left main bronchus. Bronchogram revealed above findings too, but right main bronchus was intact. CT scan revealed agenesis of left lung and herniation of right lung to left hemithorax. Intravenous pyelography showed malrotation of kidney. Pulmonary angioram and cardiac catheterization showed unremarkable findings except total absence of left pulmonary artery.

고 규소강에서 규칙상 소멸조건에 관한 연구

이택동,유지형,신제식,배준수,이진형,이혁모 대한금속재료학회(대한금속학회) 2001 대한금속·재료학회지 Vol.39 No.4

The ordered phase was tried to disappear in 6.5% Si steel to reduce the power loss and enhance the economic interests. They were prepared by the conventional casting or spray forming method, and they were investigated using the transmission electron microscopy(TEM). The variation in the methods of preparing the specimen did not result in any difference in suppressing the ordered B2 phase in the Fe-Si binary system. It was almost impossible to suppress this ordered phase keeping the silicon level as high as 6.5% even after the heat treatment at 1000℃ for 24 hr or after hot rolling. It was necessary to change the silicon level and control the cooling rate to prevent the ordering reaction, especially, in cooling after heat treatments. The silicon level of 5.8% was obtained as a maximum desirable value.

한국산 주둥이거우벌레의 계통적유연관계(系統的類緣關係).

윤일병,배시애 고려대학교 한국곤충연구소 1994 昆蟲硏究誌 Vol.20 No.1

한구산 주둥이거우벌레의 系統的類??關係. 배시애, 윤일병^*(신흥전문대학교 위생과, 고려대학교 생물학과^*), 亞蟲硏究誌. 20: 84~104, 1994, 한국산 주둥이거우벌레에 대한 계통적 유연관계를 알아보고자 외부형태형질과 생태형질을 중심으로 99개의 형질들을 선정하고 외부군비교를 통하여 형질의 극성을 결정하였다. 이들 형질들이 나타내는 계통적 정보에 따라 속과 아속을 단위분류군으로 한 분지분석을 실시하였다. 그 결과 주둥이거우벌레는 4개의 고유파생형질과 13개의 공유파생형질에 의해서 지지받는 단계통군임이 확인되었고 주둥이거우벌레아과(Rhynchitinae)에 속하는 4개의 족들 중에서 Byctiscusini족과 Deporaini족들도 단체통군임이 확인되었다. 반면에 Aletini족은 원시형질로 묶여지거나 단체통군으로 부터 아집단 단계통군이 제거되어진 측계통군임이 밝혀졌다. Rhynchitini족의 계통성은 두 가지로 해석되었다. 그 하나는 수렴 또는 평행성에 의하여 생성된 비상동적 유사성으로 묶여지는 다계통군이거나 Nelson의 정의에 따라 단계통군으로 부터 아집단 단계통군이 제거되어진 측계통군으로 될 수 있다. 군계통군들이 보이는 계통적 유연관계에 따라 sequencing convention과 Wiley's convention을 이용하여 한국산 주둥이거우벌레아과를 분류한 결과 기존분류에서 사용되었던 분류군중에서 Byctis-cusini족과 Deporaini족만이 보존되었고 Aletini족의 아속들은 족 수준으로 Rhynchitinae족내의 단위분류군과 군개통들은 족 혹은 속의 수준으로 분류되었다: Eugnamptina 아족과 Auletomorphus속은 족으로, Involvulus속내의 아속들 중 I. (Euvolvulus), I. (Haplorhynchites)와 I. (Teretriorhynchites) 아속은 속 수준으로, I. (Cartorhynchites) 아속은 족 수준으로 분류되었다. The cladistic analysis on the Korean rhynchitis weevils aimed at revealing the pattern phylogenetic relationships. The characters used in this study are primarily general morphological characters and some ecological characters, of which polarities assessed. We chose the Rhychitis genera and subgenera as the unit taxa among which phylogenetic relationships were to determined. As a result, Rhynchitinae is a monophyletic group that can be distinguished from sister group and allied groups by at least 4 autapomorphies and 13 synapomorphies. We have found out 10 monophyletic subgroups in Rhynchitinae but it was impossible to name every Rhynchitinae suggested that Byetiscusini and Deporaini are monophyletic groups and Aletini and Rhynchitini are paraphyletic or polyphyletic groups.

성애이론

이죽내,배성일 한국분석심리학회 1990 心性硏究 Vol.5 No.1

10%Cr 페라이트계 합금에서 라베스상의 석출거동에 관한 연구

김익수,강창용,배동수 한국열처리공학회 1999 熱處理工學會誌 Vol.12 No.1

The present study were investigated changes of precipitation behaviour of laves phase in ferrite single phase and ferrite-martensite dual phase and precipitation of laves phase under stress. Hardness changes in ferrite phase appeared two hardness peaks by precipitation of initial fine precipitator and laves phase in 3Mo-0.3Si and 3Mo-0.3Si-C specimens, respectively. Hardness changes in martensite phase of 3Mo-0.3Si-C specimen was lower in the initial stage of aging by carbide precipitation and after this. increased by re-hardening due to precipitation of laves phase. In the ferrite phase, laves phase was mainly precipitated, whereas in the martensite phase, carbide was preferentially formed during the initial stage of aging and with increasing aging time. laves phase and carbide were simultaneously precipitated by precipitation of laves phase at around carbide. In the ferrite-martensite interface, laves phase was mainly precipitated and carbide was mainly formed at boundary of lath martensite than grain boundary. Adding the stress in aging, fine precipitator of inital precipitation of laves phase precipitated in (100) of perpendicular to tensile direction and has grown to only followed <010> direction and also, volume fraction of laves phase increased. Consequently, the stress added was accelerated initial precipitation of laves phase.

The circulating sphingosine-1-phosphate level predicts incident fracture in postmenopausal women: a 3.5-year follow-up observation study

Bae, S. J.,Lee, S. H.,Ahn, S. H.,Kim, H. M.,Kim, B. J.,Koh, J. M. Springer Science + Business Media 2016 Osteoporosis International Vol.27 No.8

<P>A high level of circulating sphingosine-1-phosphate (S1P) is associated with a high incidence of osteoporotic fracture and a high rate of an insufficient response to bisphosphonate therapy. Sphingosine-1-phosphate (S1P) is a significant regulator of bone metabolism. Recently, we found that a high plasma S1P level is associated with low bone mineral density (BMD), high levels of bone resorption markers (BRMs), and a high risk of prevalent vertebral fracture in postmenopausal women. We investigated the possibility that S1P is a predictor of incident fracture. A total of 248 postmenopausal women participated in this longitudinal study and were followed up for a mean duration of 3.5 years (untreated [n = 76] or treated with bisphosphonate or hormone replacement therapy [n = 172]). The baseline plasma S1P level and prevalent and incident fracture occurrence were assessed. A high S1P level was significantly associated with a higher rate of prevalent fracture after adjusting for femoral neck (FN) BMD, BRM, and potential confounders (odds ratio = 2.05; 95 % confidence interval [CI] = 1.03-4.00). Incident fractures occurred more frequently in the highest S1P tertile (T3) than in the lower two tertiles (T1-2) after adjusting for confounders, including baseline FN BMD, prevalent fracture, antiosteoporotic medication, annualized changes in FN BMD, BRM, and potential confounders (hazard ratio = 5.52; 95 % CI = 1.04-56.54). Insufficient response to bisphosphonate therapy occurred more frequently in T3 than T1-2 (odds ratio = 4.43; 95 % CI = 1.02-21.25). The plasma S1P level may be a potential predictor of fracture occurrence and an insufficient response to bisphosphonate therapy in postmenopausal women.</P>

Various supercritical carbon dioxide cycle layouts study for molten carbonate fuel cell application

Bae, S.J.,Ahn, Y.,Lee, J.,Lee, J.I. Elsevier Sequoia 2014 Journal of Power Sources Vol.270 No.-

Various supercritical carbon dioxide (S-CO<SUB>2</SUB>) cycles for a power conversion system of a Molten Carbonate Fuel Cell (MCFC) hybrid system are studied in this paper. Re-Compressing Brayton (RCB) cycle, Simple Recuperated Brayton (SRB) cycle and Simple Recuperated Transcritical (SRT) cycle layouts were selected as candidates for this study. In addition, a novel concept of S-CO<SUB>2</SUB> cycle which combines Brayton cycle and Rankine cycle is proposed and intensively studied with other S-CO<SUB>2</SUB> layouts. A parametric study is performed to optimize the total system to be compact and to achieve wider operating range. Performances of each S-CO<SUB>2</SUB> cycle are compared in terms of the thermal efficiency, net electricity of the MCFC hybrid system and approximate total volumes of each S-CO<SUB>2</SUB> cycle. As a result, performance and total physical size of S-CO<SUB>2</SUB> cycle can be better understood for MCFC S-CO<SUB>2</SUB> hybrid system and especially, newly suggested S-CO<SUB>2</SUB> cycle shows some success.

S6K1 Phosphorylation of H2B Mediates EZH2 Trimethylation of H3: A Determinant of Early Adipogenesis

Yi, S.,Um, S.,Lee, J.,Yoo, J.,Bang, S.,Park, E.,Lee, M.,Nam, K.,Jeon, Y.,Park, J.,You, J.,Lee, S.J.,Bae, G.U.,Rhie, J.,Kozma, Sara C.,Thomas, G.,Han, J.W. Cell Press 2016 Molecular Cell Vol.62 No.3

S6K1 has been implicated in a number of key metabolic responses, which contribute to obesity. Critical among these is the control of a transcriptional program required for the commitment of mesenchymal stem cells to the adipocytic lineage. However, in contrast to its role in the cytosol, the functions and targets of nuclear S6K1 are unknown. Here, we show that adipogenic stimuli trigger nuclear translocation of S6K1, leading to H2BS36 phosphorylation and recruitment of EZH2 to H3, which mediates H3K27 trimethylation. This blocks Wnt gene expression, inducing the upregulation of PPARγ and Cebpa and driving increased adipogenesis. Consistent with this finding, white adipose tissue from S6K1-deficient mice exhibits no detectable H2BS36 phosphorylation or H3K27 trimethylation, whereas both responses are highly elevated in obese humans or in mice fed a high-fat diet. These findings define an S6K1-dependent mechanism in early adipogenesis, contributing to the promotion of obesity.