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초등학교 저학년 자녀를 둔 어머니를 위한 내면아이치료를 활용한 부모교육 프로그램 개발 및 효과
문경일(Kyoung Il Moon),오태주(Tae Ju Oh),박은아(Euna Park) 사단법인 한국부부가족상담협회 2023 부부가족상담연구 Vol.4 No.1
The purpose of this study is to develop and verify the effectiveness of a parent education program using Inner Child Therapy for mothers with children in lower elementary school. For this purpose, a total of 10 sessions of final programs were developed. To verify the effectiveness of the program, 14 mothers were randomly assigned to an experimental group and a control group, and comparisons were made according to pre- and post-time points. As a result of the study, it was found that the experimental group had a significant effect on the reduction of the mother's inner child's adult child characteristics and the improvement of parental sensitivity, emotional expression, and parent-child communication compared to the control group. The qualitative content analysis also showed the participants' self-understanding and growth, and the process of changing their role as active parents. Finally, the significance and limitations of this study were discussed.
논문 : 분말야금 ; 수소 분위기하에서 반응성 볼 밀링에 따른 Al-Ti 합금 분말의 극미세화
문경일 ( Kyoung Il Moon ),이경섭 ( Kyung Sub Lee ) 대한금속재료학회 ( 구 대한금속학회 ) 1998 대한금속·재료학회지 Vol.36 No.6
The early stage of reactive ball milling of Al and Ti elemental powders in a hydrogen atmosphere was investigated using XRD, PSA, SEM and TEM to find out the formation time of TiH2 phase and the usefulness of this phase in processing of nanocrystalline structure. Brittle TiH2 phase formed by hydriding reaction was essential to reduce grain size and particle size. Both grain size and particle size decreased with increasing Ti content and milling time. Hydriding reaction occurred at initial milling time between 1 and 4 hours. Nano-sized grain began to form at the same time as brittle hydride formed and more milling after 10 hrs milling had a little effect on the further reduction of the grain size. The final structure of nanocrystalline Al-Ti alloy powders was the dispersion of nano-sized TiH2 in nano-sized Al matrix. The grain size observed from TEM micrograph was less than 20 ㎚. During the reactive ball milling of Al and Ti elemental powders in a hydrogen atmosphere, it is found that grain size was first refined to nano-structure and then particle size began to reduce from 45㎛ to 15㎛.
포스트 플라즈마를 이용한 질화의 질화층 형성에 미치는 전처리의 영향에 대한 연구
문경일 ( Kyoung Il Moon ),변상모 ( Sang Mo Byun ),조용기 ( Yong Ki Cho ),김상권 ( Sang Gweon Kim ),김성완 ( Sung Wan Kim ) 한국열처리공학회 2005 熱處理工學會誌 Vol.18 No.1
N/A New post plasma nitriding can achieve a high uniformity that have been difficult in DC nitriding and have a high productivity comparable to gas nitriding. However, it has not a enough high nitriding potential for a rapid nitriding, because surface activation or ion etching in the general plasma nitriding cannot be expected. Thus, in this study, the effects of pre-treatments with oxidation and reduction gas have been investigated to improve the nitriding kinetics of post plasma nitriding. An effective pre-treatment consisting of oxidation and reduction resulted in the increase of surface energy of STD 11. This induced the surface hardness and the effective nitriding depth of STD 11. It is thought that the increase of the surface energy and the surface area with pre-treatment promote the nucleation of nitriding layer.
유성볼밀링 및 스파크 플라즈마 소결법으로 제조한 Mo-5~20 wt%. Cu 합금의 열적 특성
이한찬,문경일,신백균,Lee, Han-Chan,Moon, Kyoung-Il,Shin, Paik-Kyun 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.8
Mo-Cu alloys have been widely used for heat sink materials, vacuum technology, automobile, and many other applications due to their excellent physical and electric properties. Especially, Mo-Cu composites with 5 ~ 20 wt.% copper are widely used for the heavy duty service contacts due to their excellent properties like low coefficient of thermal expansion, wear resistance, high temperature strength, and prominent electrical and thermal conductivity. In most of the applications, highly-dense Mo-Cu materials with homogeneous microstructure are required for better performance. In this study, Mo-Cu alloys were prepared by PBM (planetary ball milling) and SPS (spark plasma sintering). The effect of Cu with contents of 5~20 wt.% on the microstructure and thermal properties of Mo-Cu alloys was investigated.
DLC(Diamond-Like Carbon) 코팅에 의한 오목 폴리머인쇄판의 내구성 및 인쇄 품질 특성
유한솔,김준형,문경일,황택성,이혁원,Yoo, Han-Sol,Kim, Jun-Hyung,Moon, Kyoung-Il,Hwang, Taek-Sung,Lee, Hyok-Won 한국재료학회 2012 한국재료학회지 Vol.22 No.10
Diamond-like carbon (DLC) films have been widely used in many industrial applications because of their outstanding mechanical and chemical properties like hardness, wear resistance, lubricous property, chemical stability, and uniformity of deposition. Also, DLC films coated on paper, polymer, and metal substrates have been extensively used. In this work, in order to improve the printing quality and plate wear of polymer printing plates, different deposition conditions were used for depositing DLC on the polymer printing plates using the Pulsed DC PECVD method. The deposition temperature of the DLC films was under $100^{\circ}C$, in order to prevent the deformation of the polymer plates. The properties of each DLC coating on the polymer concave printing plate were analyzed by measuring properties such as the roughness, surface morphology, chemical bonding, hardness, plate wear resistance, contact angle, and printing quality of DLC films. From the results of the analysis of the properties of each of the different DLC deposition conditions, the deposition conditions of DLC + F and DLC + Si + F were found to have been successful at improving the printing quality and plate wear of polymer printing plates because the properties were improved compared to those of polymer concave printing plates.
박현준,조균택,문경일,김태범,김상섭,Park, Hyun-Jun,Cho, Kyun-Taek,Moon, Kyoung-Il,Kim, Tae-Bum,Kim, Sang-Sub 한국금형공학회 2021 한국금형공학회지 Vol.15 No.3
Plastic injection molds used for rapid heating and cooling must minimize surface damage due to friction and maintain excellent thermal and low electrical conductivity. Accordingly, various surface treatments are being applied. The properties of Al<sub>2</sub>O<sub>3</sub> coating and DLC coating were compared to find the optimal surface treatment method. Al<sub>2</sub>O<sub>3</sub> coating was deposited by thermal spray method. DLC films were deposited by sputtering process in room temperature and high temperature PECVD (Plasma enhanced chemical vapor deposition) process in 723 K temperature. For the evaluation of physical properties, the electrical and thermal conductivity including surface hardness, adhesion and wear resistance were analyzed. The electrical resistance of the all coated samples was showed insulation properties of 24 MΩ/sq or more. Especially, the friction coefficient of high temp. DLC coating was the lowest at 0.134.