모바일 전자정부(m정부)의 구현 방안에 관한 연구

이진복,박순용 건국대학교 사회정책연구소 2003 사회과학연구 Vol.16 No.-

부가적 부식 과정이 단일 접착 과정 레진 시멘트의 접착 강도에 미치는 영향

강순일,박정길,허복,김현철 大韓齒科保存學會 2008 Restorative Dentistry & Endodontics Vol.33 No.5

이 연구의 목적은 단일 접착 과정의 레진 시멘트인 Maxcem을 제조사의 지시대로 사용하는 것과 부가적인 산 부식과정을 추가하여 접착을 시도함에 있어 그 임상적 접작 강도를 알아보고자 하는 것이었다. 치아 우식에 이환되지 않은 120개의 상하악 구치를 사용하여 간접 수복물 제작을 위한 와동을 형성하고 금인레이와 간접복합레진(Synfony) 수복물을 제작하였다. 실험군은 수복물의 종류마다 사용한 시벤트의 종류와 방식에 따라 세 군으로 분류하였다. 최종적으로 102개의 와동 시편에 수복물의 접착을 위해 Maxcem을 사용한 군,인산으로 부가적인 산 부식 후에 Maxcem을 사용한 군,그리고 대조군으로 다단계 전-산부식(total-etching) 시멘트인 Variolink II를 사용하여 접착한 실험군으로 각 군 당 17개씩으로 분류하였다. 자체 제작한 만능시험기로 push-out 접착 강도를 측정하고 와동 접착 표면적으로 나누어 단위 면적당 결합력으로 산출하였다. SPSS 12.0K 프로그램을 사용하여 one-way ANOVA와 95% 신뢰도의 Scheffe's Test로 각 실험군의 접착력를 비교하였다. 이 실험의 조건하에서는 Maxcem을 사용할 때,간접수복물의 종류에 관계없이,제조사의 지시 외에 부가적인 산부식 과정은 접착 강도를 감소시키는 역효과를 유발하였으며 더욱 강한 접착력을 필요로 하는 경우는 다단계 접작제를 사용하여 산부식 과정과 접착제 적용,시멘트 도포 등을 분리하여 사용하는 것이 바람직하다. The purpose of this study was to evaluate the effect of additional etching procedure prior to Maxcem resin cement application in indirect restoration cementation using push-out bonding strength. One hundred and two extracted human molars were used to make indirect resin restorations of gold inlay and Synfony. These restorations were cemented using Maxcem and Variolink II. Additional etching procedures were done for one group with Maxcem. Three groups have 17 specimens in both restoration types. Push-out bond strength was measured using multi-purpose tester and calculated for bonding strength per sqaure-millimeter area. The mean bonding strength values were compared using SPSS 12.0K program for one-way ANOVA and Scheffe' s Test with 95% significance. Under the condition of this study, the additional etching procedure prior to usage of Maxcem resulted in reduced bond strength for both of restoration types.

Sex Role Identity, Stress and Stisfaction Related to Clinical Practice

Park, Bock Soon,Kim, Hae Won 한국간호과학회 2009 한국간호과학회 학술대회 Vol.2009 No.10

Photolithography-Based Patterning of Liquid Metal Interconnects for Monolithically Integrated Stretchable Circuits

Park, Chan Woo,Moon, Yu Gyeong,Seong, Hyejeong,Jung, Soon Won,Oh, Ji-Young,Na, Bock Soon,Park, Nae-Man,Lee, Sang Seok,Im, Sung Gap,Koo, Jae Bon American Chemical Society 2016 ACS APPLIED MATERIALS & INTERFACES Vol.8 No.24

<P>We demonstrate a new patterning technique for gallium-based liquid metals on flat substrates, which can provide both high pattern resolution (similar to 20 mu m) and alignment precision as required for highly integrated circuits. In a very similar manner as in the patterning of solid metal films by photolithography and lift-off processes, the liquid metal layer painted over the whole substrate area can be selectively removed by dissolving the underlying photoresist layer, leaving behind robust liquid patterns as defined by the photolithography. This quick and simple method makes it possible to integrate fine-scale interconnects with preformed devices precisely, which is indispensable for realizing monolithically integrated stretchable circuits. As a way for constructing stretchable integrated circuits, we propose a hybrid configuration composed of rigid device regions and liquid interconnects, which is constructed on a rigid substrate first but highly stretchable after being transferred onto an elastomeric substrate. This new method can be useful in various applications requiring both high-resolution and precisely aligned patterning of gallium-based liquid metals.</P>

Locally-tailored structure of an elastomeric substrate for stretchable circuits

Park, Chan Woo,Jung, Soon Won,Na, Bock Soon,Oh, Ji-Young,Park, Nae-Man,Seok Lee, Sang,Bon Koo, Jae Institute of Physics 2016 Semiconductor science and technology Vol.31 No.2

<P>We demonstrate a new process for fabricating a hybrid elastomeric polydimethylsiloxane (PDMS) substrate, which can provide a high ratio (as large as ∼50) of the elastic modulus between the active device region and the interconnect area, as well as a locally tailored surface profile for each region. For this process, a Si master mold with a dual surface profile is prepared, where locally flat regions are distributed within a wavy-surfaced area. The stiffer elastomeric islands for active devices are formed on the flat regions by photolithography of a photo-patternable and hard PDMS layer (<I>E</I>?∼?160 MPa), over which a soft PDMS layer (<I>E</I>?∼?2 to 3 MPa) is casted. By releasing the whole PDMS layer from the mold, a hybrid silicone substrate with stiff and flat islands embedded within a soft and wavy matrix is obtained. In this hybrid structure, active devices located on the stiff regions can provide high reliability under stretched conditions, while most strain is accommodated by wavy interconnects within the soft area. Such beneficial effects are demonstrated by organic thin film transistors produced on the hybrid substrate.</P>

여대생의 얼굴미용성형 재수술 의도 구조모형

박복순(Park, Bock Soon),김주현(Kim, Joo Hyun) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.12

본 연구는 미용성형 경험이 있는 여대생의 얼굴미용성형 재수술 의도에 미치는 이론 변수들 간의 가설적 모형을 구축하며 여대생의 얼굴미용성형 재수술 의도 모형과 실제 자료간의 적합성을 검증하고자 시도되었다. 대상은 미용성형 경 험이 있는 여대생으로 2014년 7월 15일부터 2014년 9월 20일까지 설문지 320부 중 300부가 회수되었으며, 최종적으로 응답 이 불확실한 5부를 제외한 총 295부를 분석에 이용하였다. 본 연구 결과 수술 후 외모만족도, 자아존중감, 주관적 규범, 외모 지상주의는 인지부조화에 직접적으로 영향을 미치는 것으로 확인되었다. 자아존중감, 주관적 규범, 외모지상주의는 재수술 의도에 직접적 영향을 미쳤으며, 자아존중감과 외모지상주의는 인지부조화를 매개로 미용성형 재수술 의도에 직․간접적으 로 영향을 미치는 것으로 확인되었다. 이러한 결과를 토대로 미용성형 재수술 의도는 신체적 정신적 건강 향상을 위한 간호 중재 프로그램 개발의 기초자료를 제공하는데 기여할 것으로 기대된다. The purpose of this study was to construct a hypothetic model for the influential theoretical variables for the facial cosmetic resurgery intention of female college students with cosmetic surgery experience and to examine the compatability of the re-surgery intention model with real data. The subjects in this study were 320 selected female college students who had undergone cosmetic surgery. After a survey was conducted from July 15 to September 20, 2014, the answer sheets from 300 respondents were gathered, and the answer sheets from 295 respondents were analyzed except for the five ones that included uncertain answers. As a result, it's ascertained that cognitive dissonance was under the direct influence of post-surgery satisfaction with appearance, self-esteem, subjective norm and lookism.. Self-esteem, subjective norm and lookism had a direct impact on resurgery intention, and self-esteem and lookism affected resurgery intention both in direct and indirect ways through the medium of cognitive dissonance. The findings of the study are expected to provide useful information on the development of nursing intervention programs geared toward promoting physical and mental health.

간호대학생의 비판적 사고 성향과 자아존중감 및 취업스트레스의 연관성

박복순(Park, Bock Soon),조하나(Cho, Hana),박병준(Park, Byeung-Jun) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.2

본 연구는 간호대학생의 비판적 사고 성향과 자아존중감에 따른 취업스트레스의 정도를 파악하고 이들 변수간의 관계를 파악하는 서술적 상관관계 연구로써, 강원도에 소재하는 3개 대학에서 편의 추출하여 332명의 대상으로 하여 수행하 였다. 비판적 사고 성향은 89.57±9.77점, 자아 존중감은 25.11±2.58점, 취업 스트레스는 46.38±17.67이었으며, 비판적 사고 성 향과 자아존중감(r=.294, p<.001)은 양의 상관관계가 있었고, 비판적 사고 성향과 취업스트레스(r=-.240, p<.001) 및 자아존 중감(r=-.209, p<.001)과는 유의한 음의 상관관계가 있었다. 비판적 사고 성향과 자아존중감은 취업 스트레스에 영향을 미치 는 변수였고, 35.2%로 설명되었다. 따라서 간호대학생의 비판적 사고 성향과 자아존중감 향상을 통해 취업스트레스를 감소 시킬 수 있는 통합적 교육프로그램을 개발하여 적용할 필요가 있겠다 The purpose of this study was to examine the job-seeking stress of nursing students according to their critical thinking disposition and self-esteem and the relationship of these variables. The subjects in this study were 332 nursing students. The students got 89.57±9.77 in critical thinking; 25.11±2.58 in self-esteem; and 46.38±17.67 in job-seeking stress. There was a positive correlation between critical thinking and self-esteem(r=.294, p<.001), and critical thinking(r=-.240, p<.001) had a significant positive correlation with self-esteem(r=-.209, p<.001). Critical thinking disposition and self-esteem were identified as the variables to affect job-seeking stress, and the two variables had a 35.2% explainability.

Oxide Semiconductor-Based Flexible Organic/Inorganic Hybrid Thin-Film Transistors Fabricated on Polydimethylsiloxane Elastomer

Jung, Soon-Won,Choi, Jeong-Seon,Park, Jung Ho,Koo, Jae Bon,Park, Chan Woo,Na, Bock Soon,Oh, Ji-Young,Lim, Sang Chul,Lee, Sang Seok,Chu, Hye Yong American Scientific Publishers 2016 Journal of Nanoscience and Nanotechnology Vol.16 No.3

<P>We demonstrate flexible organic/inorganic hybrid thin-film transistors (TFTs) on a polydimethysiloxane (PDMS) elastomer substrate. The active channel and gate insulator of the hybrid TFT are composed of In-Ga-Zn-O (IGZO) and blends of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] with poly(methyl methacrylate) (PMMA), respectively. It has been confirmed that the fabricated TFT display excellent characteristics: the recorded field-effect mobility, sub-threshold voltage swing, and Ion/Ioff ratio were approximately 0.35 cm(2) V-1 s(-1), 1.5 V/decade, and 10(4), respectively. These characteristics did not experience any degradation at a bending radius of 15 mm. These results correspond to the first demonstration of a hybrid-type TFT using an organic gate insulator/ oxide semiconducting active channel structure fabricated on PDMS elastomer, and demonstrate the feasibility of a promising device in a flexible electronic system.</P>

대학생이 인식하는 삶의 의미에 대한 내용분석

박복순(Park, Bock Soon),최은영(Choi, Eun-Young),박상용(Park, Sang-Yong),박선정(Park, Sun-Jung) 한국산학기술학회 2016 한국산학기술학회논문지 Vol.17 No.4

본 연구는 대학생들이 삶의 의미에 대해 어떻게 인식하고 있는지를 광범위하게 파악하고자 시도 되었다. 연구 대상자 는 강원도와 경기도에 소재하는 4개 대학교에서 1, 2, 3, 4학년 학생을 대상으로 2015년 3월 부터 6월까지 대학생이 인식하 는 삶의 의미에 대한 내용을 알아보기 위한 서술적 조사연구이다. 청소년 후기에 해당되는 대학생의 삶의 의미에 관한 면담 자료를 내용분석법의 절차에 따라 삶의 의미의 정의, 삶의 의미의 중요성, 삶을 의미를 위한 노력, 삶의 의미를 느낄 때, 삶의 의미를 느끼기 위한 방법에 관해 분석함에 따라 의미 있는 102개의 진술문과 30개의 범주로 도출 되었다. 이에 따라 자신의 삶을 보다 긍정적으로 바라봄으로써 삶의 의미를 향상시키고 안녕감을 증진시킬 수 있는 기초자료가 될 것이라고 생각 된 다. 또한 삶을 살아가면서 위기상황에 적절히 대처할 수 있는 방안이 필요하므로 대학생에게 삶을 살아가면서 필요한 지지 프로그램을 체계적으로 개발하는데 중요한 자료로 사용될 수 있을 것이다. 끝으로 대학생의 신체적, 정신적, 사회적으로 건강 한 대학생활을 적응 할 수 있도록 다각적인 간호중재 기초 자료를 제공될 수 있을 것이다. The purpose of this study is to understand the way university students appreciate the meaning of life. The subjects were 1, 2, 3, and 4 grade students from four universities located in Gyeonggido and Gangwondo Provinces; This study was a descriptive research project conducted from March to June 2015 for the purpose of understanding how university students appreciate the meaning of life. The data, gathered from interviews with a number of university students, who are at the last stage of adolescence, were classified into 102 statements and 30 categories through a series of content analyses of certain subjects, such as the definition and importance of the meaning of life, the endeavor to make life meaningful, the moments they feel the meaning of life, and the methods they adopt to feel the meaning of life. We analyzed the ways in which university students appreciate the meaning of life. We hope this study will provide a small guide for them so that the meaning of their lives can be enriched and their feeling of well-being enhanced. In addition, it is necessary to develop appropriate measures for college students to deal with crises in their life and, thus, the results of this study could be used as an important material for the systematic development of support programs for college students. Finally, this study will provide the basis for multifaceted interventions designed to improve the physical and mental health of college students and help them to adapt to college life.

InGaZnO-Based Stretchable Ferroelectric Memory Transistor Using Patterned Polyimide/Polydimethylsiloxane Hybrid Substrate

Na, Bock Soon,Jung, Soon-Won,Moon, Yu Gyeong,Park, Chan Woo,Park, Nae-Man,Oh, Ji-Young,Lee, Sang Seok,Koo, Jae Bon,Koo, Kyung-Wan American Scientific Publishers 2016 Journal of Nanoscience and Nanotechnology Vol.16 No.10

<P>Future stretchable electronic systems require memory devices that combine low power consumption with mechanical stretchability. We fabricated stretchable ferroelectric memory transistors (FMTs) on a polydimethylsiloxane substrate with patterned polyimide island structures by using an amorphous InGaZnO semiconductor and ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) gate insulator. The FMTs exhibited a field-effect mobility of 7.5 cm(2)V(-1)s(-1) and a current on/off ratio of 10(7) at a relatively low operating voltage. Furthermore, the fabricated memory transistors showed no noticeable changes in their electrical performance for large strains of up to 50%.</P>