경상분지 남서부 진교-사천 지역 전기백악기 퇴적암에 대한 고자기 연구

김인수,강희철,이현구 부산대학교 기초과학연구소 1994 부산대학교 기초과학연구소 연구논문집 Vol.14 No.-

A total of 264 independently oriented core samples were collected from 26 sites in the southwestern part(the Naktong Trough) of the Cretaceous Kyongsang Basin in south Korea. The sampled formations comprise the sedimentary Shindong and the Hayang Groups of the Lower Cretaceous age. alternating field and thermal demagnetizations were conducted. Chrarcteristic remanent magnetization(ChRM) was relatively easily isolated in each formation except in the Chinju foramation, from which only remagnetization circles were observed. Even though an extensive use of the fold test was not possible due to the nearly homoclinal nature of the strata in the area, we believe that the ChRM of each formation is of primary origin based on the following grounds : The in-situ ChRM direction of each formation is different from the present geomagnetic field direction. Fisherian precision parameter becomes enhanced through the tilt correction in all formations, closely to the values, requird for a positive fold test. Three out of the five studied formations pass the reversal test. The mean palaeomgnetic pole position from the studied area is found to be statistically different from the contemporary pole from the Chinese block exclusive of the Shandong area. The difference in magnetic declination suggests a 14.5°(±10.5°) clockwise rotation from the studied area relative to the Chinese block comprising the west of the Tan-Lu fault. On the other hand, any significant difference in magnetic inclination and concurrent palaeolatitude is not obaseved between the studied area and China as well as the other area (Taegu-Andong area) in the Kyongsang Basin. The dual nature of the magnetic polarity confirmed in all formations suggests an older than 124Ma(Neocomian or older) age of the studied sedimentary strata.

경상분지 남서부 진교-사천 지역 전기백악기 퇴적암에 대한 고자기 연구

김인수,강희철,이현구,Kim, In-Soo,Kang, Hee-Cheol,Lee, Hyun Koo 대한자원환경지질학회 1993 자원환경지질 Vol.26 No.4

A total of 264 independently oriented core samples were collected from 26 sites in the southwestern part (the Naktong Trough) of the Cretaceous $Ky{\check{o}}ngsang$ Basin in south Korea. The sampled formations comprise the sedimentary Shindong and the Hayang Groups of the Lower Cretaceous age. Alternating field and thermal demagnetizations were conducted. Characteristic remanent magnetization (ChRM) was relatively easily isolated in each formation except in the Chinju formation, from which only remagnetization circles were observed. Even though an extensive use of the fold test was not possible due to the nearly homoclinal nature of the strata in the area, we believe that the ChRM of each formation is of primary origin based on the following grounds: The in-situ ChRM direction of each formation is different from the present geomagnetic field direction. Fisherian precision parameter becomes enhanced through the tilt correction in all formations, closely to the values required for a positive fold test. Three out of the five studied formations pass the reversal test. The mean palaeomagnetic pole position from the studied area is found to be statistically different from the contemporary pole from the Chinese block exclusive of the Shandong area. The difference in magnetic declination suggests a $14.5^{\circ}$ (${\pm}10.5^{\circ}$) clockwise rotation of the studied area relative to the Chinese block comprising the west of the Tan-Lu fault. On the other hand, any significant difference in magnetic inclination and concurrent palaeolatitude is not observed between the studied area and China as well as the other area (Taegu-Andong area) in the $Ky{\check{o}}ngsang$ Basin. The dual nature of the magnetic polarity confirmed in all formations suggests an older than 124 Ma (Neocomian or older) age of the studied sedimentary strata.

嶺湖南地方 瘠薄林地의 오리나무와 아까시나무의 適地에 關한 硏究

金昌浩,鄭印九,吳正壽 동국대학교 농림과학연구소 1969 農林科學 論文集 Vol.3 No.-

The objectives of these studies were to investigate how every kinds of Black Locust and Alder influence on the growth of woods in the Yongnam and Honam district. The result of this study appeared as follows: 1. At the point of soil depth. the deeper the soil depth is, the better for Black Locust and Alder grows well regardless of it. 2. Black Locust shows good growth in loose soil but even in consistant soil Alder was excellently brought up. 3. Black Locust grows well in clay loam while Alder is appropriate to grow in sandy soil. 4. Black Locust requires an adequate soil depth so it grows well in gentle slope area but Alder grows well even in steep slope area which unproductive land enables to grow Alder satisfactorilly. 5. The constitution of cover vegetation could, to some extent, be attained in the superior forest land of Black Locust but it was impossible to make cover vegetatioe in that of Alder : It can therefore, be easily attained the open area between trees of Alder pure forest. 6. Black Locust and Alder are soil improving trees and so the content of effectivn phosphorus had a great effect on tree growth. 7. Black Loust forest land had more organic substance than Alder and this fact was closely connected with tree growth. 8. C. E. C is deeply concerned with the growth of black locust but less concernment related with Alder. 9. The suitable land for Black Locust. 1) A deep soil depth. 2) On less consistancy. 3) Contained much of P_2O_5 in soil. 4) Much of organic substance. 5) On a clay loam. 6) Forest land with greater C. E. C. 10. The suitable land for Alder : 1) Contained much of P_2O_5 in soil. 2) Much of organic substance. 3) With moderate consistancy and effective soil depth 4) on sandy soil. 11. It is assumed that Black Locust requires more soil conditions than Alder. 12. Haenam district of Chulanam-Do where severly damaged by disease was excluded from this survey study.

Regulation of Hepatic Gluconeogenesis by an ER-Bound Transcription Factor, CREBH

Lee, Min-Woo,Chanda, Dipanjan,Yang, Jianqi,Oh, Hyunhee,Kim, Su Sung,Yoon, Young-Sil,Hong, Sungpyo,Park, Keun-Gyu,Lee, In-Kyu,Choi, Cheol Soo,Hanson, Richard W.,Choi, Hueng-Sik,Koo, Seung-Hoi Elsevier 2010 Cell metabolism Vol.11 No.4

<P><B>Summary</B></P><P>Endoplasmic reticulum (ER)-bound transcription factor families are shown to be involved in the control of various metabolic pathways. Here, we report a critical function of ER-bound transcription factor, CREBH, in the regulation of hepatic gluconeogenesis. Expression of CREBH is markedly induced by fasting or in the insulin-resistant state in rodents in a dexamethasone- and PGC-1α-dependent manner, which results in the accumulation of active nuclear form of CREBH (CREBH-N). Overexpression of constitutively active CREBH activates transcription of <I>PEPCK-C</I> or <I>G6Pase</I> by binding to its enhancer site that is distinct from the well-characterized CREB/CRTC2 regulatory sequences in vivo. Of interest, knockdown of CREBH in liver significantly reduces blood glucose levels without altering expression of genes involved in the ER stress signaling cascades in mice. These data suggest a crucial role for CREBH in the regulation of hepatic glucose metabolism in mammals.</P> <P><B>Highlights</B></P><P>► PGC-1α/GR activates CREBH expression under fasting or insulin-resistant conditions ► CREBH enhances hepatic gluconeogenesis via a CRTC2-dependent manner ► Depletion of CREBH in the liver ameliorates fasting hyperglycemia in diabetic mice</P>

중재 시술용 기능성 기관-기관지 팬텀의 유용성

김태형(Tae-Hyung Kim),임청환(Cheong-Hwan Lim),김정구(Jeong-Koo Kim),김명수(Myeong-Soo Kim),최원찬(Won-Chan Choi),임진오(Jin-Oh Lim),이광종(Kwang-Jong Lee),박인애(In-Ae Park),김미옥(Mi-Ok Kim),정은미(Eun-Mi Jung),신령미(Ryung-Mi Shin) 대한방사선과학회(구 대한방사선기술학회) 2003 방사선기술과학 Vol.26 No.4

중재 시술용 기능성 기관-기관지 팬텀을 제작하고, 스텐트 삽입술을 시행하여 그 유용성을 평가하고자 한다. 중재 시술용 기능성 기관-기관지 팬텀은 실리콘으로 제작하였으며, 기관을 통하여 스텐트 삽입술이 가능하도록 삽입구를 제작하였다. 팬텀은 지점토를 이용하여 인체와 동일한 형태로 기관, 기관지 분지부와 양쪽 상부 기관지를 재현하였고, 사각형의 틀에 지점토를 고정시킨 후 액상의 실리콘을 채워 건조시킨 후 지점토를 제거하여 제작하였다. 인체, 동물, 팬텀에서 기관지스텐트 삽입 후 흉부 촬영 필름의 농도와 기관지 분지부의 각도를 측정하여 비교하였다. 기관지스텐트는 세선의 교차가 다른 2가지(X-type, Y-type) 형태를 삽입하였으며, 스텐트 삽입술 후 기관 상부, 기관 분지부, 좌기관지, 우기관지, 스텐트 삽입부의 필름농도를 측정하였다. 필름농도는 기관 상부의 경우, 인체 0.76(±0.011), 동물 0.97(±0.015), 팬텀 0.45(±0.016)이었고, 기관 분지부의 경우는 인체 0.51(±0.006), 동물 0.65(±0.005), 팬텀 0.65(±0.OO8)이었고, 우기관지의 경우는 인체 0.14(±0.OO8), 동물 0.59(±0.014), 팬텀 0.04(±0.007)이었고, 좌기관지의 경우는 인체 0.54(±0.004), 동물 0.54(±O.008)로 팬텀 0.08(±0.OO8)이었고, 스텐트 삽입부의 경우는 인체 0.54(±0.004), 동물 0.59(±0.011), 팬텀 0.04(±0.007)이었다. 기관 분지부가 이루는 각도는 인체의 좌기관지에서 42.6(±2.07)˚, 우기관지에시 32.8(±2.77)˚이었으며, 동물에서 각각 43.4(±2.40)˚, 34.6(±1.94)˚, 팬텀에서 각각 35(±2.00)˚, 50.2(±1.30)˚이었다. 본 연구팀이 제작한 기관-기관지 팬텀은 기관지 스텐트 삽입술의 재현이 가능하여 중재시술의 술기연습용이나 스텐트를 평가하기 위한 체외실험에 사용이 가능할 것으로 사료된다. To evaluate usefulness of a functional tracheobronchial phantom for interventional procedure. The functional phantom was made as a actual size with human normal anatomy used silicone and a paper clay mold. A tracheobronchial-shape clay mold was placed inside a square box and liquid silicone was poured. After the silicone was formed, the clay was removed. We measured film density and tracheobronchial angle at the human, animal and phantom, respectively. The film density of trachea part were O.76(±O.O11) in human, O.97(±O.015) in animal, O.45(±O.O16) in phantom. The tracheobronchial bifurcation part measured O.51(±O.OO6) in human, O.65(±O.OO5) in animal, O.65(±O.008) in phantom. The right bronchus part measured O.14(±0.008) in human, O.59(±0.014) in animal and O.O4(±O.OO7) in phantom. The left bronchus were O.54(±O.004) in human, O.54 (±0.008) in animal and O.08(±0.008) in phantom. At the stent part were O.54(±O.004) in human, O.59(±0.011) in animal and O.04(±0.007) in phantom, respectively. The tracheobronchial angle of the left bronchus site were 42.6(± 2.07)˚ in human, 43.4(±2.4O)˚ in animal and 35(±2.00)˚ in phantom, respectively. The right bronchus site were 32.8(±2.77)˚ in human, 34.6(±1.94)˚ in animal and 50.2(±1.30)˚ in phantom, respectively. The phantom was useful for in-vitro testing of tracheobronchial interventional procedure, since it was easy to reproduce.

혈슬관절 및 외상성 활액막염 환자에서 활액막의 변화

김인,이승구,김수근 최신의학사 1983 最新醫學 Vol.26 No.4

A Study on an Apparatus for the Metal Material Thickness Measurement in High Temperature by Magnetostrictive Ultrasonic Method

Ji Yeon Shin(신지연),Ting Ting Zhang(장팅팅),Tong In Oh(오동인),Soo Woon Park(박수운),Yong Cheol Kim(김용철),Seung Bong Lee(이승봉),Kwang Sik Yoon(윤광식),Kil Mo Koo(구길모) 대한전자공학회 2020 대한전자공학회 학술대회 Vol.2020 No.8

In vary high temperature conditions a metal material thickness measurement is of importance in the phenomena associated with the nuclear accident, in connection with the demonstration experiments of In-vessel phenomenon. In this case a hemispherical thickness measuring apparatus and method using a magnatostrictive ultrasonic wave that can be suggested to measure for this thickness change in real time as the ultrasonic wave apparatus is secured.

줄넘기 운동이 과체중 남자중학생의 건강체력에 미치는 영향

구인권,최희남,김현수 한국학교체육학회 1999 한국학교 체육학회지 Vol.9 No.1

본 연구는 8주간의 줄넘기운동이 남자중학생 비만자의 건강관련 체력변인(근력, 근지구력, 유연성, 전신지구성, 신체구성)에 미치는 영향을 검토하기 위해 체지방율이 25%가 넘는 학생 20명을 운동집단(10명)과 통제집단(10명)으로 분류하여 매주 4회, 6-12분/1set, 그리고 분당 120회의 줄넘기 운동을 138박자 음악에 맞춰 1인용 구름판 위에서 4세트를 실시하였고, 세트당 휴식은 2분간 동적인 휴식을 실시하여 측정한 결과 운동집단에서 체중(1.5kg)과 신체 둘레의 가슴둘레(3.4mm)와 복부둘레(1.4mm), 그리고 체지방률(2.8%)이 모두 유의하게 감소하였다(p<.001), 근기능의 평가항목인 악력(2.6kg)과 아령들기(2.4회/30초)도 유의하게 증가하였으나 통제집단 역시 증가하여 양 그룹사이에서 유의한 차이를 발견하지 못하였다. 반면 하지 근지구력의 측정항목인 앉았다 일어나기는 운동그룹에서 유의한 증가를 보인 반면 (p<.001), 통제집단에서는 유의하지 않았다. 유연성을 평가한 앉아 윗몸 앞으로 구부리기는 운동집단이 9.1에서 10.3cm로 증가하였고(P<.05), 통제집단에서는 유의한 것은 아니나 오히려 약간 감소하였다. 이상과 같이 하지근지구력을 제외한 항목에서는 프로그램 후의 측정값에서 운동그룹과 통제그룹사이에서 유의한 차이를 보이지 않았다. 운동군에서 1600m 걷기로 추정한 최대산섭취량 역시 53.5에서 56.3 mℓ/kg/min으로 유의한 증가(p<.001)를 보였다. 그리고 운동에 참가한 모든 학생이 무릎이나 허리의 통증을 호소한 사람은 한 사람도 없었다. 이상과 같이 음악에 맞추어 실시한 구름판 줄넘기 운동프로그램이 비만 남자중학생의 신체 구성을 포함한 건강관련 체력의 향상과 정형외과적 상해방지에 유효하다는 것을 알았다. The purpose of this study was to investigate the effect of the 8 week rope skip exercise program on the health-related fitness for overweight boys (13.6±0.4 years). Twenty boys were randomized into two groups: nonexercising control (C, n=10) and ouexercise (Ex, n=10) groups, The Ex. group had rope skipping four times a week during the 8 weeks (120 skippings/min) with 138 beat music on the spring board After rope skipping program, the difference of the variation is verified by one-way ANOVA and paired t-test and the significance level is set up to .05. There were significant decrease in the percentage body fat and total fat mass in Ex group. And there was significant improvement in the cardiorespiratory fitness and muscular fitness following 8 week of training (p<.001). The results suggest that the rope skipping with music on the spring board is an effective exercise for overweight boys..

Cr첨가에 따른 자동차용 소결 밸브시트의 미세조직과 기계적 성질

具原奭,朴種寬,崔昌守,정인상 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.8

Valve seat inserts are used in the valve train area of internal combustion engines. Good wear resistance is needed since repeated stress is applied by the valves under combustion gas atmosphere of high temperatures. Currently, most of the valve seat inserts are being manufactured by P/M route. In this study, the characteristics of materials especially the wear resistance with the addition of Cr-hard particles were investigated. The results of this study are as follows: increase in the Cr-hard particles resulted in a decrease of the density of specimens. Pores formed by Cr diffusion from Cr-hard particles was attributed to the reduction in density. As a result, radial crushing strength was decreased with increase of the Cr-hard particals. Engine simulation test indicated that matrix can be hardened with the addition of Cr-hard particles. The excess addition of Cr-hard particles, however, degrades the wear resistance by the increase of residual pores. Therefore, the appropriate amount of Fe-Cr-C hard particles is 1∼5 wt%.

유도된 연어과 잡종의 유합쌍유생

박인석,노재구,남윤권,김동수 한국어병학회 2001 한국어병학회지 Vol.14 No.3

무지개송어(Oncorhynchus mykiss)×은연어(O. kisutch)간 유도 잡종에서 유합쌍유생이 발견되었다. 잡종은 부화 개체 중 22.5%의 기형율을 보였고, 이 중 17.3%의 개체가 유합쌍유생이었다. 이러한 유합쌍유생은 3종류의 유합쌍유생: (1) 동일한 난황에 정상의 2 유생 머리가 유합한형, (2) 두 갱의 유어 머리가 동일한 난황과 몸통에 유합한 형, (3) 동일한 난황에 2 유생이 기형적으로 유합한 형을 보였다. We present conjoined twins occurring in the hybridization between rainbow trout(Oncorhynchus mykiss) and coho salmon(O. kisutch), Hybrid cross displayed significantly higher abnormality (ranging 20 to 26%) than pure crossed (less than 1.5%). The incidence of conjoined twin among the abnormal lavea in the hybrid cross was as high as 17.3%. Three different types of conjoined twins were observed : (1) two larvae connected to the same yolk sac in an otherwise and normal fashion, (2)two heads of the larvae connected to the same body with one yolk sax, and (3)two larvae connected to the same yolk sac in an otherwise but abnormal fashion.