습식 분무 열분해 방법으로 제조한 코발트 도핑된 티타늄 산화막의 표면 및 광학적 특성

송호준,박영준,Song Ho-Jun,Park Yeong-Joon 한국재료학회 2005 한국재료학회지 Vol.15 No.3

Titanium dioxide films $(TiO_2)$ doped cobalt transition metal were prepared on titanium metal by water spray pyrolysis technique. Micro-morphology, crystalline structure, chemical composition and binding state of sample groups were evaluated using field emission scanning microscope(FE-SEM), X-ray diffractometer(XRD), Raman spectrometer, X-ray photoelectron spectrometer(XPS). $TiO_2$ films of rutile structure were predominately formed on all sample groups and $Ti_2O_3$ oxide was coexisted on the surface of cobalt doped-sample groups. The optical absorption peaks measured by using UV-VIS-NIR spectrophotometer were observed at specific wavelength region in sample groups doped cobalt ion. This result could be analyzed by introducing crystal field theory.

Pb_1-xCd_xI₂ 단결정의 구조적 광학적 특성 연구

송호준,최성길,김화택,Song, Ho-Jun,Choi, Sung-Gill,Kim, Wha-Tek 한국재료학회 2002 한국재료학회지 Vol.12 No.11

$Pb_{1-x}$ $Cd_{x}$ $I_2$ (x=0.0, 0.2, 0.5, 0.7, 0.9, 1.0) single crystals were grown by using Bridgman method and their structural and optical properties were investigated from the measurement of X-ray diffraction, optical absorption and photoluminescence. As-grown single crystals have hexagonal closed packed layered structure. The values of lattice constant c decrease with increasing composition x. Direct and indirect transition optical energy band gaps are calculated from optical absorption spectra measured at room temperature. They increase exponentially from 2.3eV to 3.2 eV with increasing composition x. The energies of photoluminescence peak due to donor bound exciton measured at 6K increase with increasing composition . However, the peak energies of donor-acceptor pair (DAP) are independent of the optical energy band gaps of $Pb_{1-x}$/$Cd_{x}$ $I_2$ single crystals.

열자극 탈분극전류 방법에 의한 BaTiO₃의 분극 특성 연구

송호준,이용렬,박영준,Song, Ho-Jun,Lee, Yong-Ryeol,Park, Yeong-Joon 한국재료학회 2002 한국재료학회지 Vol.12 No.8

The polarization properties of $BaTiO_3$ were investigated by using thermally stimulated depolarization current (TSDC) technique. Two peaks were observed at about 400 K (peak A) and 435 K (peak B) from TSDC spectra obtained from the temperature range of 280-500 K. Peak A shows a sharp decrease of TSDC due to extinction of spontaneous polarization above the phase transition temperature of $BaTiO_3$. The values of activation energy of peak A and peak B were calculated to be 0.70 eV and 0.87 eV respectively. From the results of TSDC measurement with a variation of polarizing electric field strength, we found that saturation of total current of TSDC was started from 3kV/cm. However, the amount of total current of TSDC was not affected by the variation of polarizing time.

자기진술을 활용한 심리운동중재가 주의력결핍 과잉행동아동의 운동협응성 및 부적응행동에 미치는 효과

송호준 ( Ho Jun Song ) 한국정서.행동장애아교육학회(구.한국정서학습장애아교육학회) 2012 정서ㆍ행동장애연구 Vol.28 No.1

본 연구는 자기진술을 활용한 심리운동중재가 주의력결핍 과잉행동 아동의 부적응 행동에 미치는 효과를 알아보는 것으로 자기진술을 통한 심리운동중재를 실시하였다. 연구 대상은 초등학교 고학년 아동 중 과잉행동, 부주의, 충동적 행동의 부적응행동과 운동협응성 문제를 보이는 3명의 아동을 선정하였다. 본 연구의 설계는 대상자간 중다간헐기초선설계(multiple probe across participants design)이며 종속 변인으로 부적응 행동의 변화를 관찰을 통해 살펴보았다. 자료 분석은 관찰을 통한 부적응 행동 발생율의 평균 및 범위를 단계별로 제시하고 그래프를 작성하여 시각적 분석을 하였다. 연구 결과로 자기진술을 활용한 심리운동중재가 ADHD아동의 부적응 행동 감소에 효과적이었다. 따라서 자기진술을 활용한 심리운동중재가 ADHD아동의 운동협응성 향상과 부적응행동 감소에 효과적인 중재라고 결론지을 수 있다. The purposes of this study are to find out effects of psychomotor intervention using self-talk for attention-deficit hyperactivity disorder children`s motor coordination and maladjustment behaviors. Three children from upper grades of elementary school with problems such as hyperactivity, impulsivity, inattention behavioral maladjustment and motor coordination were studied. This study used a multiple probe across participants design and was examined through checking motor coordination and maladjustment` changes which were independent variables. Also, changes in motor coordination and maladjustment behavior were examined by checking pre-post intervention. Achievement rate of motor coordination behavior and occurrence rate of maladjustment behavior was measured average and range in baseline, intervention, and maintenance. The results of this study were as follows: First, psychomotor intervention using self-talk has positive effects on ADHD children`s motor coordination. Second, the psychomotor intervention using self-talk has positive effects on decrease of ADHD children`s maladjustment. Therefore, the conclusion of this study is that psychomotor intervention using self-talk is an effective mediation for ADHD children`s improvement of motor coordination`s abilities and maladjustment behaviors.

티타늄 임플란트의 골융합 증진을 위한 최신 표면처리 기술

송호준(Ho-Jun Song) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.2

Titanium implant is used as the most popular dental material for replacement of missing teeth recently. A lot of studies on the surface modification of titanium implant have been carried out for enhancing osseointegration. The surface modification techniques could be classified as follows; topographic modifications which provide roughness and porosity, chemical surface modificationss or deposition of osseoconductive materials, and biochemical modifications to immobilize bone growth factors on titanium surface. In this study, the current and ongoing surface modification techniques and its typical characteristics used in clinics were reviewed. In the future, study and implication about biochemical modifications including patient" s individual characteristics will be important.

H. pylori 감염에 대한 일차 제균치료 실패시 재치료 전략

송호준 ( Song Ho Jun ),정현채 ( Jeong Hyeon Chae ) 대한내과학회 2003 대한내과학회지 Vol.65 No.3

심리운동을 적용한 움직임 교육이 발달장애 아동의 운동성과 놀이행동에 미치는 영향

송호준(Song, Ho-Jun) 한독심리운동학회 2021 심리운동연구 Vol.7 No.2

본 연구는 심리운동을 적용한 움직임 교육이 발달장애 아동의 운동성과 놀이행동에 미치는 효과를 살펴본 것으로 운동성과 놀이성에 어려움이 있는 발달장애아동 6명을 대상으로 하였다. 연구 대상에게 심리운동을 적용한 움직임교육을 주 2회 60분씩 20주간, 총 40회기를 실시 후 그 변화를 살펴보았다. 연구도구로 MABC-2를 이용하여 아동의 운동지수 변화를 살펴보았고 놀이성평가(CPS)검사를 통한 놀이행동 변화를 살펴보았다. 심리운동을 적용한 움직임 교육의 효과를 검정하기 위하여 SPSS 22.0 프로그램을 활용한 Wilcoxon 부호검정을 통하여 분석하였다. 연구결과 심리운동을 적용한 움직임 교육이 발달장애아동의 운동성의 하위영역인 손의 기민성, 표적 맞추기와 잡기, 평형성에 고른 향상을 보인 것으로 나타났으며, 놀이행동에서도 하위영역인 주도적 참여, 인지적 융통성, 즐거움의 표현, 자발적 몰입의 모든 영역에 고른 향상을 준 것으로 나타났다. 추후 발달장애를 비롯한 다른 장애 영역을 대상으로 한 심리운동을 적용한 움직임 교육에 대한 지속적 연구와 다양한 대상에 대한 후속 연구가 필요하다. This study examines the effect of movement education applying psychological exercise on the mobility and play behavior of children with developmental disabilities. Six children with developmental disabilities who have difficulties in mobility and play were targeted. The study subjects were given a movement education that applied psychological exercise twice a week for 60 minutes for 20 weeks, a total of 40 sessions, and then the change was examined. Using MABC-2 as a research tool, the change in children s motor index was examined, and the change in play behavior through playability evaluation(CPS) was examined. In order to test the effect of movement education to which psychomotor is applied, the Wilcoxon sign test using the spss 22.0 program was used for analysis. As a result of the study, it was found that movement education applied with psychological exercise showed even improvement in hand agility, targeting and catching, and balance, which are sub-domains of mobility of children with developmental disabilities, and also in play behavior, which are sub-domains of initiative participation and cognitive flexibility, expression of pleasure, and voluntary immersion in all areas were found to have improved evenly. In the future, it is necessary to continue research on movement education by applying psychomotor to other disability areas, including developmental disabilities, and follow-up studies on various subjects.

CMV 감염이 증명된 스테로이드 불응성 궤양성 대장염 환자에서 CMV 감염을 시사하는 내시경적 소견

송호준 ( Song Ho Jun ),김상균 ( Kim Sang Gyun ),최기돈 ( Choe Gi Don ),남수연 ( Nam Su Yeon ),이창수 ( Lee Chang Su ),김주성 ( Kim Ju Seong ),정현채 ( Jeong Hyeon Chae ),송인성 ( Song In Seong ) 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-

<목적> CMV IgM, 내시경 조직검사나 수술후 병리소견, CMV에 대한 면역조직화학검사로 CMV 감염이 증명된 스테로이드 불응성 궤양성 대장염 환자에서 CMV 감염을 시사하는 내시경적 소견을 알아보고자 하였다. <방법> 2000년 3월부터 2003년 7월까지 서울대학교병원에 입원하여 고용량의 스테로이드 치료에도 불구하고 증상의 호전이 없어 cyclosporine이나 ganciclovir를 투여 받은 스테로이드 불응성 궤양성 대장염 환자를 대상으로 후

대학생의 개인특성과 교육환경특성이 중도탈락의도에 미치는 영향

송호준(Ho-Jun Song) 한독심리운동학회 2024 심리운동연구 Vol.10 No.1

본 연구는 대학생의 개인특성과 교육환경특성이 중도탈락 의도에 미치는 영향을 살펴보기 위한 연구로 P 대학교의 사례를 통하여 현재 대두되고 있는 중도탈락 감소를 위한 대안을 모색하기 위한 목적이다. 본 연구를 위하여 중도탈락 의도와 만족도에 관한 설문을 개발하고 총 203부의 설문지를 대상으로 SPSS를 활용하여 빈도, 상관분석, 이항로지스틱분석을 통한 중도탈락의도에 미치는 영향을 분석하였다. 연구결과 첫째, 개인특성에서 중도탈락 의도 차이를 보였는데 여성이 중도탈락의도가 높은 것으로 나타났다. 둘째, 교육환경특성이 중도탈락에 미치는 영향으로 교육환경특성의 하위요인인 교수학업환경, 비교과활동환경, 대학활동환경 모든 영역에서 중도탈락의도에 영향을 주는 것으로 나타났다. 셋째, 개인특성과 교육환경특성이 중도탈락 의도에 미치는 영향에서는 개인특성요인에서는 성별과 거주지역이, 교육환경요인에서는 비교과활동과 교육환경특성에서 통계적으로 유의한 영향을 주는 것으로 나타났다. 이러한 결과를 통하여 교수학업환경뿐만 아니라 비교과 프로그램 개발을 통한 교육만족도 향상과 중도탈락감소를 위한 노력이 필요하다고 제언할 수 있다. This study is designed to examine the impact of university students' individual characteristics and educational environment characteristics on their intention to drop out. The purpose of this study is to find alternatives to reduce dropout, which are currently emerging through the case of P University. For this study, a questionnaire regarding dropout intention and satisfaction was developed. A total of 203 questionnaires were used to analyze the impact on dropout intention through frequency, correlation analysis, and binary logistic regression analysis using SPSS. As a result of the study, firstly, there was a difference in the intention to drop out in terms of personal characteristics, and it was found that women had a higher intention to drop out. Second, due to the influence of educational environment characteristics on dropout, it was found that all sub-factors of educational environment characteristics, such as teaching/study environment, extracurricular activity environment, and university activity environment, affected dropout intention. Third, in terms of the impact of personal characteristics and educational environment characteristics on the intention to drop out, gender and residential area were found to have a statistically significant influence on the intention as personal characteristic factors, and extracurricular activities and educational environment characteristics were found to have a statistically significant influence on the intention as educational factors. Through these results, it can be suggested that efforts are needed to improve educational satisfaction and reduce dropout through the development of non-curricular programs as well as the teaching and academic environment.

IoT 스마트 스트레스 케어를 위한 생체신호 기반의 실시간 HRV 측정

송호준(Song Ho Jun),박도영(Park Do Young) ICT플랫폼학회 2021 JOURNAL OF PLATFORM TECHNOLOGY Vol.9 No.1