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간호 대학생의 성 지식, 성 태도와 성 건강 간호 장애감 간의 관계
김다연,김은아,노수경,류아인,박나은,박지혜,서정민,심효정,주성민,한진실,이건정,박수민 이화여자대학교 간호과학대학 2017 이화간호학회지 Vol.- No.51
Purpose: The purpose of this study was to investigate correlation among sexual knowledge, attitude and Barriers to patient’s sexual health of nursing undergraduate students and to provide objective data to promote sexual health-care. Method: Using a descriptive correlation, 304 nursing undergraduate students were recruited through convenience random sampling from August 1st to December 20th, 2016. Data were analyzed using average, standard deviation, percentage, t-test, ANOVA, Scheffe test, Pearson’s correlation and Multiple linear regression analysis using the SPSS 21.0 program. Results: The correlation between Sexual knowledge and Sexual attitude is statistically significant(r=.289, p<.01). As the level of sexual knowledge is higher, the sexual attitude is more open. And, Sexual knowledge(r=-.307,p<.01) and Sexual attitude(r=.180,p=.002) had a negative relationship with Barriers to patient’s sexual health. Also, Sexual knowledge was the greatest influencing factor on Barriers to patient’s sexual health. Conclusion: This study showed as the level of Sexual knowledge is higher, the Sexual attitude is more open. As the degree of Sexual knowledge is lower, the Sexual attitude is more conservative, and Barriers to patient’s sexual health is more higher. Also, Sexual knowledge is the most influential factor on Barriers to patient’s sexual health.
High tensile strength of sputter-deposited ZrB<sub>2</sub> ceramic thin films measured up to 1016 K
Sim, G.D.,Choi, Y.S.,Lee, D.,Oh, K.H.,Vlassak, J.J. Elsevier Science 2016 Acta materialia Vol.113 No.-
<P>We report the results of tensile experiments on 900 nm sputter-deposited films of ZrB2, performed at temperatures ranging from ambient to 1016 K. The ZrB2 samples were tested using micromachined sample frames with integrated micro-heaters. Transmission electron microscopy shows that both as deposited films and films heated above 1000 K consist of two distinct layers, an amorphous layer and a crystalline layer with a very fine columnar structure. The ZrB2 films have a room-temperature tensile strength in excess of 1.2 GPa, far exceeding the tensile strength of bulk ZrB2, but their stiffness is lower and decreases significantly with increasing temperature. The reduction in stiffness is attributed to the presence of the amorphous phase and the high density of transverse grain boundaries in the crystalline region. The fracture toughness of the ZrB2 films was measured by introducing pre-cracks in the tensile specimens with a focused ion beam, and was found to be 2.57 +/- 0.03 MPa root m, similar to values reported for bulk ZrB2. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.</P>
기관 회전수와 드로틀 개도량 변화에 따른 배기 다기관내의 압력 변동 분석
박경석,김세웅,김영일,심국상,방중철 金烏工科大學校 産業技術開發硏究院 1999 産業技術開發硏究 Vol.15 No.-
This paper describes characteristics of the pressure variation occurred in the exhaust manifold and the cylinder of the gasoline engine. The in-cylinder pressures have been compared steady firing and motoring engine by experimental method and also pressures of exhaust manifold have been compared by experimental method using two sensors. Experimental results showed that in-cylinder pressures of steady firing engine are increased according to the engine revolution and in-cylinder pressures of motoring engine ate increased according to the throttle open rate. And the pressures in the exhaust manifold are delayed according to the engine revolution and the throttle open rate.
심상철(S.C.Sim),안병규(B.K.Ahn),김형곤(H.G.Kim),정병국(B.K.Jung),송규근(K.K.Song) 한국마린엔지니어링학회 2004 한국마린엔지니어링학회 학술대회 논문집 Vol.2004 No.-
The characteristics of diesel spray have effect on the engine performance such as power, fuel consumption and emissions. Therefore, This study was performed to investigate the effect of various injection parameters. In this study, the experiment is performed by using the high temperature and high pressure chamber. Spray behaviors are visualized by using the high speed camera and spray angle, penetration etc. are measured.<br/> Experimental results are summarized as follows;<br/> 1) Correlations of spray penetration is expressed as follows<br/> 0<t<t b ; 51 = 11.628ΔP0.485p-o.478tl.337<br/> tb<t ; S2=7.457ΔP0.523p-0.380;0.548<br/> 2) Correlations of spray Angle is expressed as follows<br/> Ta.=293K; tan(θ/2)=0.59(pa/pt)0.437<br/> Ta = 473K ; tan (θ/2) = 0.588( Pa/ pt)0.404<br/> 3) The measured macro characteristics - spray tip penetration and spray angle - agreed well with established correlations.<br/>
표화영,심현섭,송윤경,윤영선,이은경,임성은,하현령,최홍식 한국음성과학회 2002 음성과학 Vol.9 No.2
Our present study was performed to investigate acoustically the Korean normal adults'; voices, with enough large number of subjects to be reliable. 120 Korean normal adults (60 males and 60 females) of the age of 20 to 39 years produced sustained three vowels, /a/, /i/, and /u/ and read a part of 'Taking a Walk' paragraph, and by analyzing them acoustically with MDVP of CSL, we could get the fundamental frequency (F_0), jitter, shimmer and NHR of sustained vowels; speaking fundamental frequency (SF_0), highest speaking frequency (SFhi), lowest speaking frequency (SFIo) of continuous speech. As results, on the average, male voices showed 118.1~122.6 ㎐ in F_0, 0.467~0.659% in jitter, 1.538~2.674% in shimmer, 0.117~0.133 in NHR, 120.8 ㎐ in SF_0, 183.2 ㎐ in SFhi, 82.6 ㎐ in SFIo. And, female voices showed 211.6~220.3 ㎐ in F0, 0.678~0.935% in jitter, 1.478~2.582% in shimmer, 0.098~0.114 in NHR, 217.1 ㎐ in SF_0, 340.9 ㎐ in SFhi, 136.0 ㎐ in SFIo. Among the 7 parameters, every parameters except shimmer showed the significant difference between male and female voices. And, when we compared the three vowels, they showed significant differences one another in shimmer and NHR of both genders, but not in F_0 of males and jitter of females.