性別 및 年齡에 따른 體格과 體力의 特性과 變化에 關한 縱斷的 硏究Ⅱ : Emphasised on College Men of Department of Physical Education 體育專功 大學生을 中心으로

金尙國,姜東洹,張周鎬,金昇一,徐再均,金耕知,孫斗玉,鮮于攝,崔榮烈,尹宇相,金亨燉,方永鎭,朴英震,柳在忠 慶熙大學校 體育科學大學 1989 體育科學論叢 Vol.- No.2

The purpose of this study was to compare the characteristics, change in physique and physical function of college students majoring physical education and Taekwondo (454 males and 64 females of age groups ranging from 18 to 26). The results are as following: 1. The male group of 23yrs old in physical education showed highest values in 7 items(Weight, Chest Girth, Fore Arm Girth, Thigh Girth, Calf Girth, Scapular Skinfold Thickness and Suprailiac Skinfold Thickness). 2. In the Physical function, the male group of 18yrs old showed highest values in Power, Flexibility, and then 21yrs old at Back Strength, Vital Capacity, and 23yrs old at Grip Strength, and 25yrs old at Blood Pressure, respectively. 3. In the physique, the male group of 22yrs old showed highest values in Weight, Chest Girth, Thigh Girth, Calf Girth, and then 24yrs old Upper Arm Girth, Fore Arm Girth, and 19yrs old at Height, Upper Limb Length, respectively. 4. In Physical Function, the 22yrs old showed highest values in Back Strength, Vital Capacity, and then 23yrs old at Side Step, Trunk Extension, but 18yrs old showed lower Values in Grip Strength, Side Step, Vital Capacity and Blood Pressure. 5. The female group of 22yrs old showed highest values in 8 items(Height, Sitting Height, Waist Girth, Upper Limb Length, Lower Limb Length, Skinfold Thickness), and then 18yrs old at 5 items (Weight, Upper Arm Girth, Fore Arm Girth, Thigh Girth, Calf Girth), respectively. 6. In the physical function, the 22yrs old showed highest Values in Grip strength, Back Strength, Power, 5 Minute Run, and 18yrs old at flexibility, Harvard Step Test, respectively. 7. In the change of the physique for two years(1988-1989) in the male group, majoring Physical education the 22yrs old showed increase in 4 items, and the 20yrs old in 3 items, but 18yrs old showed decrease in 3 items. 8. In the change of the physical function for two years in the male group, the 20yrs old showed increase in 4 items, and the 21, 25, 26yrs old in 3 items, but the 19yrs old showed decrease in 6 items, and 18, 22 yrs old in 5 items, respectively. 9. The change of the physique for two years in all female group, of 18, 19, 20, 21yrs old showed increase in 11 items except Skinfold Thickness. 10. In the change of physical function for two years in female group, the 18yrs old showed increase in 3 items, and then 20yrs old in 5 items, but 19, 22yrs old decreased 12 items, respectively. 11. The highest significant difference in physique between male and female was found in weight(mean Value 17.5%), and the lowest difference was found Thigh Girth, Calf Girth(1,3%), Upper Limb Length, Lower Limb Length(2.5%). 12. The Highest difference in physical function was Strength (mean Value 40%), Vital Capacity (33%), Power(22%), but Lower Trunk Flexion, Foot Balance(3.4%). 13. In the difference of Physique and physical function between physical education major and taekwondo major, the physical education showed higher values in skinfold Thickines (mean Value 16.5%), Weight, Waist Girth(4.7%) and Strength(33%), Endurance(5.6%), but subjects majoring Taekwondo showed higher values in Flexibility and Foot Balance. 14. In all male groups, Waist Girth, Scapular Skinfold Thickness, Back Strength, Sargent Jump, Trunk Extension and Diastolic Blood Pressure were showed a significantly related at 0.001 level.

능동표적신호합성 알고리듬의 실시간 구현

김희성,김우식,최상문,한동훈,신기철,김재수 韓國海洋大學校 附設 海洋科學技術硏究所 1997 硏究論文集 Vol.6 No.-

The simulation of target-scattered echo with the moving sonar platform and target in 3-dimensional ocean environment is essential to validate and evaluate the performance of a sonar system. This paper presents the improved target signal simulation on the basis of the highlight(HL) model and its realtime algorithm. In order to simulate the scattering highlight, the highlight is represented as a directional scatterer. The realtime generation algorithm of the target signal is realized by use of DSP chip, TMS320C40, where the 40 channels are equally separated to form a parallel processing task in 4 processors. The presented realtime-version of target signal simulation can be used as a target signal simulator in the development of ACM(Acoustic Counter Measure) and advanced sonar signal processing techniques.

6-치환된 1,3,5-trianzine-2,4-dithiol 유도체의 반응성 연구

김재종,이용희,성대동 동아대학교 기초과학연구소 2001 基礎科學硏究論文集 Vol.18 No.1

Several 6-substituted-1,3,5- triazine-2,4-dithiol derivatives were prepared and their infrared were recorded on KBr disk. All these compounds show distinctly separate absortion bands for C-S and C-N streching. Each of these bands is split into a doublet. This is explained in terms of the existence of rotational isomers.

선천성 완전방실차단이 동반된 신생아 루프스 1예

정재현,이은지,이은주,황진원,송영진,최병진,김일환,김종윤,허민영,김동욱 인제대학교 2009 仁濟醫學 Vol.30 No.-

Neonatal lupus is a rare syndrome occurring In neonates with tranplacentally acquired maternal autoantibodies, In particular anti-SSA/Ro-SSB/Ra antibodies. Manifestations include congenital heart block, cutaneous lesions, thrombocytopenia, neutropenia, pulmonary or neurological disease and hepatitis. The non-cardiac manifestations resolve by 6 months of age, congenital heart block is irreversible. We experienced a case of neonatal lupus with congenital complete heart block in a newborn of asyptomatic mother with anti-SSA/Ro-SSB/Ra antibodies.

Ball Mill 분쇄에 對한 硏究

박동기,성일용,엄제현,김익수,김승혁 三陟大學校 1998 論文集 Vol.31 No.1

In the field of study on 'comminution' there appear some kinds of polarizition, i.e. macro-micro, software-hardware and practice-theory and so on. For instance, numerous papers are available on mathematical modelling or simulation of practical ball mill grinding circuits. Few discussion, however, has been made in those papers from the viewpoint of energy consumption on the basis of its quantitative measurement. On the other hand so-called 'fracture of a single particle' phenomena have been investigated exclusively from this point of view in other papers concerned. The authors, therefore, are trying to fill the gap of this type nad conducted so far some experimental work on a laboratory scale ball mill system facilitating precise measurements of torgue.

초음파현미경에서 V(z)곡선의 시뮬레이션과 열화평가에의 응용

조동수,박익근,임재생,안형근,심우식,김홍준 한국비파괴검사학회 2004 학술대회 논문집 Vol.- No.-

고추수침엑스가 Streptococcus mutans B-13의 세포외 다당류 합성에 미치는 영향에 관한 전자현미경적 연구

고재승,정태영,이종흔,정동균,김각균 대한구강생물학회 1980 International Journal of Oral Biology Vol.4 No.1

Streptococcus mutans B-13 was cultured in sucrose broth containing water-extract of capsicum and the effect of the extract was observed with the aid of electron microscope, in an effort to elucidate the anti-cariogenic effect of capsicum in white rats observed during the previous experiment. Growth curve was also obtained in the presence or in the absence of the extract. The results were as follows : 1. S. mutans B-13 produce no extracellular polysaccharide in glucose broth. 2. In sucrose broth, extracellular polysaccharides with two components were produced ; that is, electron-dense, globular and relatively homogenous material and widespread fibrillar component. 3. In sucrose broth containing water-extract of capsicum, production of extracellular polysaccharide was almost completely suppressed. Growth was also influenced by the extract. 4. It seems that certain material which is capable of suppressing the production of extracellular polysaccharide and of influencing growth is present in water-extract of capsicum and that anti-cariogenic effect of capsicum is probably related to this unidentified material.

사람 태아간의 산호성 과립백혈구형성에서 산호성 과립형성에 대한 미세구조 연구

송재섭,김경용,이원복,김동창 중앙대학교 의과대학 의과학연구소 1992 中央醫大誌 Vol.17 No.4

The developmental processes of eosinophilic granule formation were ultrastructural investigation of eosinophilic granulopoiesis in 15 cases of human fetal livers from 8 to 34 weeks of gestation. 1) Numerous vesicles, microgranules and small agranular and granular vacuoles were distributed around the distended Golgi apparatus in myeloblast and eosinophilic promyelocyte. 2) Granular matrix of vacuoles contained small granular vacuoles, serveral vesicles and mutilamellar structures. The granular substance exhibited higher electron density than that of cystic rough endoplasmic reticulum(RER) and was similar partly to that of immature eosinophilic granules. 3) Distended cystic RER was fused to produce matrix of maturing granules with granular vacuoles and immature eosinophilic granules. 4) Immature eosinophilic granule which began to be produced in eosinophilic promyelocyte, had myelin sheath-like structure and debris of vesicles and granular vacuoles and those disappeared immediately. The charicteristic crystalloid inclusions began to develop in immature eosinophilic granule of myelocyte. In summary, it is suggested that vesicles and granular vacuoles as well as RER in the myelocyte and promyelcyte are participating in the formation of immature eosinophilic granules which become mature with the appearance of charicteristic crystalloid inclusion

섬유강화 고분자 복합재료 사출성형품의 섬유배향상태

이동기,심재기,김진우 한국공작기계학회 2005 한국생산제조학회지 Vol.14 No.1

Injection molding is the most widely used process for the industrial forming of plastic articles. During an injection molding process of composites, the fiber-matrix separation and fiber orientation are caused by the flow of molten polymer/fiber mixture. As a result, the product tends to be nonhomogeneous and anisotropic. Hence, it is very important to clarify the relations between separation. orientation and injection molding conditions. So far, there is no research on the measurement of fiber orientation using image processing. In this study, the effects of fiber content ratio and molding condition on the fiber orientation-angle distributions are studied experimentally. Using the image processing method, the fiber orientation distribution of welding parts in injection-molded products is assessed. And the effects of fiber content and injection mold shapes on the fiber orientation in case of fiber reinforced polymeric composites are studied experimentally.

인산칼륨배합세치제의 상아질지각과민완화효과

손재범,성진효,김동기 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.1

The desensitizing toothpaste which is containing potassium phosphate, sodium fluoride, ursodesoxycholic acid and tocopherol acetate was compared with other silica-base toothpastes for the treatment of dentinal hypersensitivity in a double-blind study. Of these, one acted as negative control containing only 1,000ppm of fluoride, another acted as positive control containing 5% postassium nitrate and 1,000ppm of fluoride, and the other acted experiment contained 2% monobasicpotassium phosphate, 3% dibasicpotassium phosphate, 0.02% UDCA, 0.05% tocopherol acetate and 1,000ppm of fluoride. 96patients who have dentinal hypersensitivity were randomly allocated to use those toothpastes for 8 weeks. Sensitivity was scored according to the response to thermal stimuli, tactile, evaporative stimuli. Recordings were made at baseline,1,3,5 and 8week. The statistical comparison showed that sensitivity duration of experimental group was reduced significantly compared to negative control group and positive control group(p<0.05). The clinical findings would be consistent with the in vitro observation that the experimental toothpaste occluded open dentinal tuble more effectively and increase the hardness of teeth more highly than positive control and negative control toothpastes.