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윤원숙 ( Yoon W. S. ),석웅 ( Seok W. ),이순영 ( Lee S. Y. ),황점숙 ( Hwang J. S. ),안은경 ( Ann E. G. ),최민선 ( Choi M. S. ),이종희 ( Lee J. H. ) 국군의무사령부 2016 대한군진의학학술지 Vol.47 No.1
Objectives: This study aims to provide epidemiological baseline data of ROK military women’s health status and to identify and prioritize their health problems. Methods: Internet based web survey was done with a 131-item-questionnaire. A total of 2068 subjects from army, navy, air-force, and marine-corps participated. To analyze the data, descriptive statistics was done utilizing SPSS Ver.20. Results: 62.2% of the participants perceived their health status positively. Most frequent health problems were anemia(28.2%), chronic rhinitis(25%), allergies(21.5), urinary tract infection, and hemorrhoids(11.6% each). Life satisfaction was 3.63±.77 at 5-point scale. 8.9% were depressed and 4.9% had suicide ideation. Average BMI was 21.7 and obesity rate was 9.0%. Current smoking rate was 2.9% and high-risk alcohol use rate was 2.5%. Most common obstetric issues were premenstrual syndrome(59.1%) and menstrual pain(46%). 55% of the participants answered ‘didn’t take pop smear test ever’ or ‘don’t know when the test was done’. 80% of the subjects didn’t perform breast-self-exam and 69.5% had never learned about it. Conclusions: Major issues and baseline data on military women’s health status were identified. The study results grant the necessity of policy development and further research for combat strength and readiness of military women.
Jay Bok Choi,김동명,이충현,김대환,김대정,D.W. Kang,G.C. Kang,H. T. Kim,이진구,J.U. Lee,K. S. Roh,K. Y. Kim,민경식,S. W. Kim,이순영,S.H. Seo 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
In this paper, a novel characterization technique is presented to quantitatively extract the energy distribution of interface states in the gate-to-drain overlapped region of MOSFETs. Optical excitation with a sub-bandgap optical power (Eph = 0.95 eV < Eg,Si = 1.12 eV) is applied over the MOSFETs and the gate-induced drain leakage (GIDL) current, named the optically-induced GIDL, and the energy distribution of interface states in the gate-to-drain overlapped region of MOSFETs can be extracted. The increased drain leakage current under sub-bandgap optical illumination is expected to be predominantly caused by optical trap-assisted tunneling (optical GIDL current, IOTAT = IGIDL = ID,opt . ID,dark). Combining analytical models for the GIDL current, which is increased only by trap-assisted tunneling under sub-bandgap photonic excitation, we extracted interface-state density in the gate-to-drain overlapped region, excluding the band-to-band tunneling current in the off-state drain leakages in MOSFETs. Our optical GIDL current measurement is shown to be in good agreement with the results of the charge pumping and photonic gated diode method (PGDM) results for interface states in MOSFETs. In this paper, a novel characterization technique is presented to quantitatively extract the energy distribution of interface states in the gate-to-drain overlapped region of MOSFETs. Optical excitation with a sub-bandgap optical power (Eph = 0.95 eV < Eg,Si = 1.12 eV) is applied over the MOSFETs and the gate-induced drain leakage (GIDL) current, named the optically-induced GIDL, and the energy distribution of interface states in the gate-to-drain overlapped region of MOSFETs can be extracted. The increased drain leakage current under sub-bandgap optical illumination is expected to be predominantly caused by optical trap-assisted tunneling (optical GIDL current, IOTAT = IGIDL = ID,opt . ID,dark). Combining analytical models for the GIDL current, which is increased only by trap-assisted tunneling under sub-bandgap photonic excitation, we extracted interface-state density in the gate-to-drain overlapped region, excluding the band-to-band tunneling current in the off-state drain leakages in MOSFETs. Our optical GIDL current measurement is shown to be in good agreement with the results of the charge pumping and photonic gated diode method (PGDM) results for interface states in MOSFETs.
Se Woon Kim,김동명,이충현,D. W. Kang,김대환,김대정,G.C. Kang,H. T. Kim,이진구,J.U. Lee,K. Y. Kim,K.S. Roh,민경식,이순영,S.H. Seo 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
We propose a novel photonic base current method to extract the energy-dependent distribution of interface states in heterojunction bipolar transistors (HBTs) by using the photonic current-voltage (I-V) characteristics under sub-bandgap (Eph < Eg) photonic excitation. For the sub-bandgap photonic I-V characterization of HBTs, an optical source with a photon energy less than the bandgap energy of Al0.3Ga0.7As and GaAs (Eph = 0.95 eV < Eg,AlGaAs = 1.79 eV & Eg,GaAs = 1.42 eV) is employed for the characterization of interface states distributed over the photo-responsive energy band (EC .0.95 Eit 0.98 eV) at the emitter-base heterojunction in HBTs by comparing the base currents under a dark condition and sub-bandgap photonic excitation. The trap density at the emitter-base heterojunction interface has been obtained as Dit = 108 1012 eV.1cm.2 over the photo-responsive energy band of AlGaAs/GaAs HBTs under sub-bandgap photonic excitation.
문승필,도대호,최재석,이순영,신흥교,김상현,김용신,김홍식 慶尙大學校 工科大學 自動化및컴퓨터應用技術硏究所 1998 自動化 및 컴퓨터應用技術 Vol.5 No.1
A new technique using search method based on fuzzy multi-criteria function is proposed for generator maintenance scheduling. Minimization of probabilistic production cost, maximization of system reliability level and air pollution are considered for fuzzy multi-criteria function. To obtain an optimal solution for generator maintenance scheduling under fuzzy environment, fuzzy multi-criteria relaxation method(fuzzy search method) is used. The practicality and effectiveness of the proposed approach are demonstrated by the simulation results of the real size model system.