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대학생의 불안정 성인애착이 대학생활적응에 미치는 영향 : 성격강점의 조절효과
박찬 ( Chan Park ),박응임 ( Ung-im Park ) 한국아동가족복지학회(구 한국가족복지학회) 2020 한국가족복지학 Vol.25 No.3
Objective: This study tested moderating effects of character strengths based on the association between the insecure adult attachment of college students and their adjustment to college life. Methods: 388 college students of Andong National University responded to the survey questionnaires. This study used SPSS 23.0 and PROCESS Macro Mode 1 to statistically prove moderating effects of the emotional and intellectual strengths with the correlation between insecure adult attachment and adjustment to college life. Results: Results indicated that insecure adult attachment and adjustment to college life are negatively correlated, and emotional and intellectual strengths and adjustment to college life are positively correlated. In addition, emotional strengths have moderating effects on adjustment to college life, while intellectual strengths are not correlated to adjustment to college life. Conclusion: This study suggests that students with insecure adult attachment, which causes maladjustment to college life, can be helped through developing and using overall character strengths such as emotional and intellectual strengths, especially when developing programs and counseling students. Lastly, the study discussed limitations and further suggestions for future studies.
Fabrication of YBCO films on metal tapes by the TFA-MOD process
신거명,송규정,박찬,문승현,유상임,Shin Geo-Myung,Song Kyu-Jung,Park Chan,Moon Seung-Hyun,Yoo Sang-Im The Korean Superconductivity Society 2005 Progress in superconductivity Vol.7 No.1
YBCO thin films on metal substrates were prepared by the metal-organic deposition using trifluoroacetates (TFA-MOD). To compensate the loss of Ba element from the precursor films due to the reaction with $CeO_2$ cap layer, we have employed Ba-excessive precursor solutions of $YBa_{2+x}Cu_{3}O_{7-{\delta}}$ ($0{\le}x{\le}0.1$). The precursor solutions were dip-coated on the metal substrates with $CeO_2$ cap layer, initially heated up to $400^{\circ}C$, and finally fired at the various high temperatures for 2 h in a reduced oxygen atmosphere. With this approach, YBCO films possessing critical temperature over 85 K could be successfully prepared on the metal substrates. The highest $T_{c,zero}$ value of 86 K was obtained from the Ba-excessive YBCO film of x=0.005 in $YBa_{2+x}Cu_{3}O_{7-{\delta}}$ fired at $750^{\circ}C$ for 2 h. However, unexpected $T_c$ suppression even in Ba-excessive YBCO samples requires further identification.
Fabrication of High-Quality $SmBa_{2}Cu_{3}O_{7-{\delta}}$ Thin Films by a Modified TFA-MOD Process
김덕진,송규정,문승현,박찬,유상임,Kim Duck-Jin,Song Kyu-Jeong,Moon Seung-Hyun,Park Chan,Yoo Sang-Im The Korean Superconductivity Society 2005 Progress in superconductivity Vol.7 No.1
We report a successful fabrication of high-quality $SmBa_{2}Cu_{3}O_{7-{\delta}}$ (SmBCO) thin films on $LaAlO_3$(LAO)(100) single crystalline substrates by a modified TFA-MOD method. After the pyrolysis heat treatment of spin-coated films up to $400^{\circ}C$, SmBCO films were fired at various temperatures ranging from 810 to $850^{\circ}C$ in a reduced oxygen atmosphere (10 ppm $O_2$ in Ar). Optimally processed SmBCO films exhibited the zero-resistance temperature ($T_{c,zero}$) of 90.2 K and the critical current density ($J_c$) of $0.8\;MA/cm^2$ at 77K in self-field. Compared with the $J_c$ values (normally, > $2\;MA/cm^2$ at 77 K) of MOD-TFA processed YBCO films, rather depressed $J_c$ values in SmBCO films are most probably attributed to the existence of ${\alpha}$-axis oriented grains.
하악골 부분절제술 시행한 환자에서 CAD/CAM Zirconia Framework와 Monolithic Zirconia를 이용한 전악 수복 증례
마보영,박홍주,임영관,박찬,신진호,임현필,Ma, Bo-Young,Park, Hongju,Im, Yeong-Gwan,Park, Chan,Shin, Jin-Ho,Lim, Hyun-Pil 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.3
구강암에 대한 외과적 처치로 구강 내 광범위한 경조직, 연조직을 제거한 환자는 저작, 연하, 발음 등의 기능적 문제와 치열, 안모의 심미적 문제를 갖게 된다. 악골 재건 후에도 치조골 등 합병증으로 인해 가철성 보철물의 유지 및 지지를 받는데 제한적이다. 임플란트 지지 고정성 보철물은 이러한 환자들에게 적절한 보철수복 방법이 되어 왔다. 본 증례는 하악 재건 후 computer-aided design과 computer-aided manufacturing을 이용하여 지르코니아 프레임워크 상부에 단일 구조 지르코니아 크라운을 제작하여 현재 치열의 기능적, 심미적 회복을 하여 이에 보고하고자 한다. Defects due to mandibulectomy often cause hard and soft tissue loss and result in esthetic problems and functional disorders such as mastication, swallowing, and pronunciation. After the mandibular reconstruction, several complications including loss of alveolar bone can cause limitations in maintenance or supporting of removable prosthesis. For these patients, implant-supported fixed restorations have been an appropriate prosthetic restorative method. In this case report, we report the patient who underwent mandibulectomy and mandibular reconstruction owing to oral cancer, and then restored the current dentition functionally and aesthetically by applying zirconia frameworks and monolithic zirconia crowns by computer-aided design and computer-aided manufacturing.
RABiTS 위에 PLD 방법으로 증착된 YBCO 초전도 박막 선재의 제조
고락길,정준기,하홍수,김호섭,송규정,박찬,문승현,유상임,김영철,Ko Rock-Kil,Shi Dongqi,Chung Jun-Ki,Ha Hong-Soo,Kim Ho-Soup,Song Kyu-Jeong,Park Chan,Moon Seung-Hyun,Yoo Sang Im,Kim Young-Cheol 한국초전도학회 2004 Progress in superconductivity Vol.6 No.1
YBCO coated conductor is one of the most promising materials as a new generations wire especially for practical power applications. In this work, $YBa_2$$Cu_3$$O_{7}$ -$\delta$/(YBCO) coated conductors (CC) were deposited by pulsed laser deposition (PLD) from buffer layers to superconducting layer on hi-axially textured metal tape. The oxide multilayer buffered substrate of architectures of $CeO_2$/$YSZ/Y_2$$O_3$ was fabricated by PLD at steady status. Then YBCO layer was deposited on RABiTS substrate by stationary and reel-to-reel (R2R) continuous process and we compared with deposition conditions of both processes. The degree of texture of each layer was investigated using X-ray diffraction including $\theta$-2$\theta$ scans, $\omega$-scans and $\Phi$-scans analysis. Their surface morphology was observed by scanning electron microscopy (SEM). The FWHM of the X-ray $\Phi$-scans and $\Phi$-scans indicated that YBCO and buffer layers closely replicate the in-plane and out-of-plane texture of metal tape. Critical current (Ic) at 77 K, self-field of 75.8 A/cm-width, critical temperature (Tc) of 85 K, and critical current density (Ic) of 3.7 MA/$\textrm{cm}^2$ were measured from coated conductor deposited by stationary process. And coated conductor deposited by R2R continuous process had Ic of 57.5 A/cm-width, Tc of 86.5 K and Jc of 2.0 MA/$\textrm{cm}^2$. The film also exhibits a homogeneous and dense surface morphology.