동박과 접착력 향상을 위한 폴리이미드 합성 및 접착특성 평가

박재연(Jae Yun Park),박종현(Jong Hyun Park),박유민(Yu Min Park),박노균(No Kyun Park),김윤호(Yun Ho Kim),원종찬(Jong Chan Won) 한국고분자학회 2017 폴리머 Vol.41 No.5

차세대(5G) 디스플레이의 발전으로 인하여 데이터 전송량이 점차 증가하므로, 신호전송이 빠른 대역대인 고주파 대역을 사용한다. 신호전송을 위한 회로는 동박과 폴리이미드 필름으로 이뤄진 유연동박적층판(FCCL)이 사용되는데, 고주파는 표면으로 신호가 흐르므로 두 소재 사이의 계면 조도를 낮춰 경로를 최소화하여야 한다. 그러나 저조도 동박을 사용하면 동박과 폴리이미드 수지와의 접착 강도가 떨어지게 되므로 이러한 문제점을 보완해야 한다. 본 연구에서는 동박과 접착력 향상을 위해 다양한 폴리이미드 구조를 설계하고, 아민계 실란 기능기를 도입한 폴리아믹산을 합성하였다. 다양한 구조의 폴리아믹산은 pyromellitic dianhydride(PMDA), 3,3"4,4"-biphenyltetracarboxylicdianhydride(BPDA), 4,4"-(hexafluoroisopropylidene) diphthalic anhydride(6FDA)와 m-tolidine(mTB), 2,2"-bis(trifluoromethyl)-[1,1"-biphenyl]-4,4"-diamine(TFMB) 등의 조합으로 합성하여, 이를 동박에 코팅하고 이미드화하여 FCCL을 제조하였다. 접착력에 대한 특성은 다양한 폴리이미드 구조에 따른 박리 강도 시험과 분리된 계면에 대한 AFM, SEM, 접촉각 측정으로 상관관계를 비교 해석하여 확인하였다. Since the development in mobile display requires high data transmission speed, there is a growing need in the development of flexible copper clad laminate (FCCL) for flexible printed circuit board (FPCB) that has a high signal propagation at high frequency range. The circuit for signal transmission uses FCCL which is composed of copper foil and polyimide film. The surface roughness of copper foil has to be low to reduce the pathway of signal because the current flows near the surface at high frequency range. However, such low roughness of the copper foil results in poor adhesion to polyimide, which is a problem that should be addressed. In this study, the poly(amic acid)s (PAAs) having various structures were synthesized and the silane functional group was introduced as end group to investigate the enhancement in the adhesion with the copper metal. Various polyimide structures were synthesized with the combinations of pyromellitic dianhydride (PMDA), 4,4"-(hexafluoroisopropylidene) diphthalic anhydride (6FDA), 3-aminopropyltriethoxysilane (TEOS), 3,3",4,4"-biphenyltetracarboxylic dianhydride (BPDA), m-tolidine (mTB) and 2,2"-bis(trifluoromethyl) biphenyl-4,4"-diamine (TFDB). The synthesized PAAs were casted on the copper foil and were imidized for the fabrication of polyimide for FCCL. The adhesion strength between the polyimide and the copper foil was investigated by peel strength test and interfacial characteristics was investigated with AFM, SEM, FTIR and contact angle measurement.

흰쥐의 브르모벤젠대사계에 미치는 어성초의 영향과 페놀성 화합물의 분리

박종철(Jong Cheol Park),허종문(Jong Moon Hur),박주권(Ju Gwon Park),박성종(Sung Jong Park),이종호(Jong Ho Lee),성낙주(Nak Ju Sung),최명락(Myung Rak Choi),송상호(Sang Ho Song),김문성(Moon Sung Kim),최종원(Jong Won Choi) 한국생약학회 2000 생약학회지 Vol.31 No.2

Effects of Houttuynia cordata on the level of lipid peroxide and the enzyme activities of the liver were investigated in bromobenzene-induced rats. Lipid peroxide content in liver was increased by bromobenzene. It was decreased when the methanol extract from the aerial parts of H. cordata was treated to the rat. The methanol extract reduced the activities of aminopyrine N-demethylase and aniline hydroxylase that increased by bromobenzene, however did not affect glutathione S-transferase activity. The methanol extract recovered the activity of epoxide hydrolase activity that decreased significantly by bromobenzene. We suggest that under our experimental conditions the extract might play an important play in the prevention of hepatotoxicity by reduction of aminopyrine N-demethylase and aniline hydroxylase activities as well as enhancement of epoxide hydrolase activity. Six phenolic compounds have been isolated from H. cordata and identified by means of spectral analysis as protocatechuic acid, quercetin, apigenin, afzelin, hyperoside and quercitrin.

일 광역시 당뇨병 환자의 주관적 기억력 장애 관련 요인

박모니카(Monica Park),류소연(So Yeon Ryu),최성우(Sung Woo Choi),박종(Jong Park) 한국농촌의학 지역보건학회 2023 농촌의학·지역보건 Vol.48 No.1

Objective: The purpose of this study was to identify factors associated with subjective memory impairment in patients with diabetes mellitus in a metropolitan city. Methods: The subjects of this study were 351 patients with diabetes mellitus aged 50 and over from five districts of Gwangju who participated in the 2018 Community Health Survey. We analyzed general characteristics, health-related behaviors and health related conditions and subjective experience of memory impairment. To find factors associated with subjective memory impairment, the chi-square test and multiple logistic regression analysis were used. Results: Of all subjects, 31.3% was reported subjective experience of memory impairment. The odds ratios (ORs; 95% confidence interval (CI)) for subjective memory impairment according to age were statistically significant at 1.9 (0.9-4.3) in patients in 60s and 2.2 (1.1-4.7) in patients in beyond 70s compared to those in 50s. The OR (95% CI) of ex-smoker compared to the non-smoker was 0.3 (0.8-0.9). The OR (95% CI) of depressive symptom compared to no depressive symptoms was 4.9 (95% CI: 1.8-13.7). Conclusion: In this study, subjective memory impairment in patients with diabets mellitus was associated with age, smoking, and depressive symptoms. Based on the results of this study, subjective memory impairment should be detected early through periodic cognitive function evaluation for elderly patients with diabetes mellitus, and a program for healthy cognitive function should be included in diabetes management program.

지방정부 재정건전화 방안

박종관(Jong Gwan Park) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.10

본 논문은 천안시 공무원들의 인식조사를 통해 지방자치단체의 재정건전성 확보방안을 마련하는데 목적이 있다. 선행연구를 분석해본 결과, 지방정부의 재정건전성은 자치단체를 둘러싸고 있는 사회, 경제, 인구, 정치 등 다양한 요인들에 의해 복합적으로 영향을 받고 있음을 발견하였다. 본 연구는 이러한 논의를 바탕으로 자치단체의 재정실태관련 지표, 재정건전성 관련 지표, 재정건전성을 높이기 위한 지표를 도출했다. 천안시의 재정 건전성을 확보하기 위해서는 재정운영의 효율성을 높여야 한다. 재정운영 효율성을 높이기 위해서는 지역주민의 재정감시 및 통제 장치 마련, 투자심사분석제도 활성화 등이 필요하다. 또한 효율적인 채무관리를 위해서는 자치단체의 자율적인 통제기능이 강화되어야 한다. 지방 재정의 확충을 위해 국고보조사업의 지방비 부담을 인하해야하며, 사용료 요율의 현실화가 필요하다. 지방재정운영의 발전은 중앙정부, 지방정부, 지역주민의 연계망 속에서 자율과 통제의 조화 통해 이루어져야 한다. 또한 계획수립-자원배분-평가-환류시스템을 체계적으로 구축하여 재원이 실질적으로 주민복지 향상 및 지역개발투자에 배분될 수 있도록 해야 한다. This Study aims to establish better sound fiscal plan by investigating perception of local government officials. Local government fiscal consolidation is affected by a combination of factors, including social, economic, demographic, political financial health of local governments. We derived the financial situation of the government-related indicators, financial health-related indicators, the indicators to improve the financial health on the basis of this study are an existing discussion. To ensure the financial soundness of the Cheonan, it is necessary to increase the efficiency of financial management including financial monitoring and control devices provided the locals, investment screening analysis system to enable it. In addition, fiscal controls should be strengthened in order to effectively autonomous government debt management. You must cuts expense of local government to prepare for expansion of local government finance, it is necessary to realize that the fee rates. It should be made through a blend of autonomy and control in the central government, network of local government and the development of local financial operations. You should also to be distributed to the residents welfare and community development funds are invested substantially to establish a systematic planning, resource allocation, evaluation, and reflux system.

한국형 아동·청소년의 용서심리검사(EFI-C) 타당화 연구

박종효(Jong Hyo Park) 한국교육심리학회 2007 敎育心理硏究 Vol.21 No.1

ICT 표준화 전략포럼의 주요 표준화 이슈

박애란(Park Ae Ran),김정헌(Kim Jung Hun),박종봉(Park Jong Bong) 한국통신학회 2011 한국통신학회 학술대회논문집 Vol.2011 No.11

동적위치제어시스템을 이용한 선박의 실선스케일 횡이동시험에 관한 연구

박종용(Jong-Yong Park),이준호(Jun-Ho Lee) 대한조선학회 2020 大韓造船學會 論文集 Vol.57 No.6

유책배우자의 이혼청구와 허용기준 - 대법원 2004. 9. 24. 선고 2004므1033 판결

박종용(Jong Yong Park) 한국가족법학회 2006 가족법연구 Vol.20 No.1

  In the west no-fault divorce laws were introduced in some countries in 1960s. The tendency of divorce law of the world changes from the fault-grounds divorce to the no-fault divorce. Now many western countries have enforced that. The ground of no-fault divorce is the failure of the marriage relationship. So, in no-fault divorce principle the divorce is permitted if the failure of the matrimonial relationship only exists without fault or no-fault. In no-fault divorce system, we have to remember that Divorce is not a sanction but a remedy.<BR>  However, the Korean Divorce Law has been in a fault-based divorce system from the commencement of family law, 1960. The divorce law was built around the thought that one spouse was guilty of a matrimonial offence. For many years in our country, a petition for divorce by a guilty spouse was not permitted in Korea.<BR>  The major problem of this paper is the question of demand for divorce made by a spouse at fault. Namely, for reason of the failure of the marriage relationship, the spouse wholly or mainly at fault brings the demand for divorce against the other spouse. This problem is raised in the process of transition of divorce law from the fault divorce to the no-fault divorce.<BR>  I think the duty of divorce law is not to help an innocent spouse by maintaining an already destroyed matrimonial relationship, but rather to bring an end to such a marital relationship and to protect the respondent and children financially and mentally, socially.<BR>  While, in 1987 Japanese Supreme Court changed this doctrine and concluded that a marriage that has irretrievably broken down should be brought to end. But the dissolution will include the conditions to prevent not result in grave financial, mental or social hardship for the respondent and children.<BR>  So, I think that Our Supreme Court should change from the fault divorce principle to the no-fault divorce principle. and I propose to adapt the no-fault divorce principle.

BIM기반 Green Remodeling 의사결정 방안에 관한 연구

박종언(Park, Jong-Eon),이정재(Yee, Jurng-Jae) 대한건축학회 2014 대한건축학회 학술발표대회 논문집 Vol.34 No.2

"形+名"、 "名+形"之間的句法語義聯系

박종임 ( Jong Im Park ) 한국중국언어학회 2011 중국언어연구 Vol.0 No.36

본고는 "형용사 + 명사"、 "명사 + 형용사"간의 문장의미의 연관성(句法語義聯系)을 선행된 연구를 기본 바탕으로 정리 분석 하였다. 현대한어 형용사는 성질과 상태를 표현하는 실사(實詞)로써 단어의 품사 분류 기준에 의하여 성질형용사(性質形容詞)와 상태형용사狀態形容詞)로 분류되며, 성질형용사와 상태형용사를 살펴보면 성질형용사는 관형어표지인 "的"가 동반되고, 대다수가 이음절 성질형용사이다. 단음절 성질형용사는 전형적인 성질형용사이고, 이음절 성질형용사는 상태형용사의 성질을 갖는 형용사다.전형적인 성질형용사에는 관형어 표지인 "的"를 동반하지 않으며 직접 관형어(定語)가된다. 상태형용사는 대다수 관형어 표지인 "的"를 동반한다. 본문은 "형용사 + 명사"、"명사 + 형용사"간의 의미(語義)의운용과 어법의 분석을 중심으로 형식과 의미상결합(意義相結合)、 정태적결합(靜態)과동태적결합(動態的結合)、 묘사(描寫)와 해석상결합(解釋相結合)의 원칙에 따라, 형용사가 구체적인 문장일 때 혹은 구체적인 언어환경(語境)일 때 "形+名"의 조합과 의미특징에 대해 세분화하여 분석 하였다. 또한 "형용사+명사", "명사+형용사" 간의 문장의미의 연관성, "형용사"와 "명사"의 조합유형과 기능에 대한 대칭과 비대칭에 대한 문제를 중심으로 논하였다.