韓國氣功 定立을 위한 方向設定에 관한 硏究

金永明,金相奎,申舜植 동아대학교 스포츠과학연구소 2000 스포츠科學硏究論文集 Vol.18 No.-

Qigong is on the developmental stage and is expanding to the entire world, while it acknowsedges to the West as a universial method of human healthy-longevity. The conception of health known to thr west is based on the providence of modem civilization and science focusing on the physical practices, however, which usually limit the projected effective execution itself. Recently the eastern method of more effective physical-mental training was explored and by which is replaced for the human-healthy longevity in human life. The western standard form and its criterion was established through researches done by the scheme of biological-medical science, effectively it is revolutionizing forward the the eastern medical science as a formal integration of psychology, physiology and the social environmental elements. According to the eastern thought human life is a unified form of mental and physical integration. In China, the government actually supports in official for the development of qigong so that it is activated, practically suggested and progressed lively throughout the nation. Qigong in Korea is activated today. It will be expanded further from now on. Qigong is considered as a method of natural healing, physical theraphy and healthy longevity while giving attention to a lot of people in our country. As they demand qigong in daily lives, there increased the amount of service institute In our community. However, they are not qualified enough both of the knowledge and practical technique. In a future it may cause social problems and there need countermeasure. Therefore, the government must consider about certain problems such as Qigong clinics and its practicioners, which need to be examined before approval, and should enact the national policy and system so that Qigong in korea can be identifie as physical activity for all, as well as systematically established for a way of national health.

거푸집 개발용 GFRP보강 폴리머 복합패널의 휨 특성

연규석,권택정,정중호,김성기 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

본 연구는 반영구수명의 교량상판용 영구거푸집을 개발할 목적으로 리브를 갖는 GFRP보강 폴리머 콘크리트 복합패널을 제작하고 이에 대한 휨특성을 고찰한 것이다. 연구에서 리브높이와 인장측 GFRP보강층 두께를 달리하는 12종류의 GFRP보강 폴리머 콘크리트 복합패널 시험체를 제작하고 이에 대한 휨시험을 수행함으로써 리브 높이와 GFRP보강층 두께가 복합패널의 휨특성에 미치는 영향을 실험적으로 구명하였다. 시험결과 GFRP보강 폴리머 콘크리트 복합패널의 극한 모멘트는 GFRP 보강두께가 증가 1.0에서 4.0 mm로 증가 할때, 리브 높이에 관계없이 약 93~101%의 거의 일정한 중가폭을 보였고, 리브 높이가 1.0에서 3.0cm로 증가할 때, GFRP 보강층 두께에 관계없이 약 35~41%의 거의 일정한 증가폭을 보였다. 또한 강도설계법에 기초한 극한모멘트 예측식은 실험결과와 잘 부합되어 리브를 갖는 GFRP 보강 폴리머 콘크리트 복합패널을 영구거푸집에 적용할 시 지간에 따른 상용 단면설계에 매우 유용하게 적용될 것이다. In this study, twelve different GFRP-reinforced polymer concrete composite panel specimens with various rib heights and tensile side and reinforced side thickness were produced. flexural tests were conducted to figure out the effect of the height and thickness influencing on the flexural properties of composite panel. Test results of the study are presented. Especially, a prediction equation of the ultimate moment based on the strength design method agrees well with the test results, and it is thought to be useful for the corresponding design of cross-section according to various spans as the GFRP-reinforced polymer concrete composite panel is applied for a permanent form.

유리섬유보강 폴리머 복합패널의 피로특성 : Fatigue Properties of Glass Fiber Reinforced Polymer Composite Panel

연규석,정중호,권택정,김성기 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

본 연구는 압축강도 1,020 kgf/㎠를 갖는 폴리머 모르타르를 중심부로 하고 내·외표면은 고인장의 GF RP로 보강된 샌드위치 패널의 피로 특성에 관한 연구이다. 이를 위해 중심부 폴리머 모르타르와 압축 및 인장측 GERP보강층 두께를 달리하는 샌드위치 형식의 패널 시험체를 제작하고 이에 대한 휨 피로 시험을 수행함으로써 폴리머 모르타르 두께와 GFRP보강층 두께가 패널의 휨피로거동에 미치는 영향 즉 피로하중수준-피로수명과의 상관관계를 구명하였다. 실험결과 하중수준이 증가함에 폴리머 모르타르 및 GFRP 보강두께에 관계없이 샌드위치 패널의 피로수명은 감소하는 경향을 나타냈고, 동일 하중수준에서는 폴리머 모르타르 두께가 증가함에 따라 피로수명은 감소하는 경향을 나타냈으며, GFRP 보강층 두께가 증가함에 따라 피로수명이 증가하는 경향을 나타냈다. 한편 이러한 폴리머 모르타르 및 GFRP 보강층 두께에 따른 피로응력수준-피로수명 상관관계는 수정된 Miner의 법칙과 부합됨을 확인 할 수 있었다. Is this study, the fatigue properties of the sandwich panel of which core was made of the polymer mortar and inner and outer facings were reinforced by a high-tensile GFRP were surveyed. Sandwich-panel specimens consisted of polymer mortar core and GFRP compressive and tensile sides with various thickness were produced for the experimental study. Flexural fatigue tests were conducted to figure out the correlation between fatigue load and fatigue life for various thickness of core and facings, and its results are presented. The correlation obtained in this study between fatigue load and fatigue life for various thickness are in good agreement with the modified Miner's law.

Synthesis of Fe and N doped Ordered Mesoporous Materials for Oxygen Reduction Reaction

( Jin Xing ),김지만,이성빈,이창현,정헌종 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.0

Enantioselective analysis of ketoprofen in human saliva by liquid chromatography/tandem mass spectrometry with chiral derivatization

Jin, Xing,Zhang, Chunbo,Jin, Dongri,Lee, Yong-Ill Elsevier 2018 Microchemical journal Vol.143 No.-

<P><B>Abstract</B></P> <P>The enantioselective analytical method for trace ketoprofen (KET) in human saliva was developed for the first time using liquid chromatography/electrospray ionization-tandem mass spectrometry (LC/ESI-MS/MS) combined with a derivatization using a chiral reagent, (<I>S</I>)‑1‑methyl‑4‑(5‑(3‑aminopyrrolidin‑1‑yl)‑2,4‑dinitro‑phenyl)piperazine (APy‑PPZ). The APy‑PPZ derivatization enabled highly sensitive detection (detection limit, 0.5 fmol on column) and complete separation with high resolution (R<SUB>s</SUB> = 4.3) of KET enantiomers. The calibration curves of both KET enantiomers in saliva were linear in the concentration range of 5–500 nM. The developed method showed good analytical performance with relative standard deviations (RSDs) below 2.6% and good accuracy (100.5–105.9%) through intra- and inter-assay and gave a potential for practical application to the quantitative determination of KET in human saliva.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A highly sensitive LC/ESI-MS/MS method for enantioselective analysis of KET was developed and validated. </LI> <LI> The proposed method was successfully applied to enantioselective determination of KET in human saliva for the first time. </LI> <LI> Good analytical performance of the method with very low LODs of 0.5 fmol and high recoveries of 100.5–105.9%. </LI> </UL> </P>

DFT Studies on Two Novel Explosives Based on the Guanidine-Fused Bicyclic Structure

Jin, Xing-Hui,Hu, Bing-Cheng,Jia, Huan-Qing,Liu, Zu-Liang,Lu, Chun-Xu Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.4

Density functional theory (DFT) calculations at the B3LYP/6-31G(d,p) theoretical level were performed for two novel explosives (compounds B and C) based on the guanidine-fused bicyclic skeleton $C_4N_6H_8$ (A). The heats of formation (HOFs) were calculated via isodesmic reaction. The detonation properties were evaluated by using the Kamlet-Jacobs equations. The bond dissociation energies (BDEs) for the thermolysis initiation bond were also analyzed to investigate the thermal stability. The results show that the compounds have high positive HOF values (B, 1064.68 $kJ{\cdot}mol^{-1}$; C, 724.02 $kJ{\cdot}mol^{-1}$), high detonation properties (${\rho}$, D and P values of 2.04 $g{\cdot}cm^{-3}$ and 2.21 $g{\cdot}cm^{-3}$, 9.98 $km{\cdot}s^{-1}$ and 10.99 $km{\cdot}s^{-1}$, 46.44 GPa and 59.91 Gpa, respectively) and meet the basic stability requirement. Additionally, feasible synthetic routes of the these high energy density compounds (HEDCs) were also proposed via retrosynthetic analysis.

THE TASK OF SCIENCE AND COMPREHENSIVE DEVELOPMENT FOR THE LOWER REACH VALLEY OF TUMEN RIVER

Jin Xing(金星),Jin Tuxing(金突星) 대한전자공학회 1991 ICEIC:International Conference on Electronics, Inf Vol.1991 No.8

Adsorption Characteristics of IPA-Water Mixture

( Jin Xing ),김명일,이융,이동현 한국공업화학회 2007 한국공업화학회 연구논문 초록집 Vol.2007 No.1

Partial Shift Mapping for PAPR Reduction with Low Complexity in OFDM Systems

Xing Ouyang,Jiyu Jin,Guiyue Jin,Zhisen Wang 한국전자통신연구원 2012 ETRI Journal Vol.34 No.2

The high peak-to-average power is one of the main drawbacks in OFDM systems. This letter proposes a partial shift mapping (PSM) method for peak power reduction in OFDM systems. By utilizing the properties of the discrete Fourier transform, the proposed method generates a set of candidate signals without additional complex multiplication and selects the one with minimum peak power for transmission. Analyses and simulations confirm that the PSM method achieves satisfactory peak power reduction performance and low complexity compared with other kindred methods, for example, selected mapping and partial transmit sequences.

The evolution property of four-body concurrence in Jaynes-Cummings model

Xing-Ri JIN,Shou ZHANG,Bo-Xue LIU,Chung-In UM,Kyu-Hwang YEON 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.4

We realized the four-body approximate W state by the interaction of two atoms and two mode vacuum cavity fields, no matter that the two atoms are initially in Einstein-Podolsky-Rosen entangled states or in disentangled states. The four-body entanglement changes with the initial state of the system and the detuning degree. What’s important is that when the two atoms are initially in Einstein-Podolsky-Rosen, the entanglement of atom-atom and field-field can reach a maximal value of 1. Also if the two atoms are initially in disentangled tates, the entanglement of atom-atom andfield-field won’t go beyond 1/2.