대역저지 특성 갖는 CPW 급전 단일 평면 타원형 UWB 안테나 설계

박길영 충북대학교 산업대학원 2005 국내석사

셀룰로오스 재생 섬유를 이용한 고내열 탄소직물의 연속식 제조 및 특성

박길영 전북대학교 일반대학원 2021 국내박사

In this study, carbon fabrics were prepared using regenerated cellulose fibers produced by Kolon Industries Corp., Korea. The process is divided into weaving, pretreatment, pyrolysis, carbonization, and graphitization processes. The final continuous process was presented through analysis of key factors such as weaving density and pattern, types and contents of pretreatment agent, temperature for each process, residence time, and atmosphere, etc. Weaving density and pattern are important factors affecting workability and efficiency during the pyrolysis and carbonization processes. First, a fabric type with an areal density 536.4 g/m2 and 2/2 twill was selected through a narrow fabric study, finally, with a width of 1,600 mm was woven. Phosphorus-based flame retardants such as Phosphoric acid (PA), Ammonium phosphate (AP), Diammonium hydrogen phosphate (DAP), and Triammonium phosphate trihydrate (TAP) were used for treatment by type and content. Cellulose undergo a large amount of weight loss during the heat treatment accompanied by physical and chemical dehydration and other gas-forming side reactions including depolymerization. Therefore, it has to go through the pretreatment process, and the effect of the types and contents of the pretreatment agent, that was confirmed by using phosphorus flame retardants such as PA, AP, DAP, and TAP. Physical, structural, and chemical properties of cellulose vary depending on the phosphorus-based flame retardant treatment. Pretreatment type and content of pretreatment agent were determined through TGA, FT-IR XRD, SEM, and yield analysis. The dehydration and depolymerization reactions are very important process and appear during pyrolysis of cellulose competitively. From the study of the pyrolysis process conditions, the pyrolysis temperature suitable for the continuous process was confirmed by C-NMR, XRD, yield analysis, and shrinkage change in length and width. The carbonization and graphitization were performed in an N2, Ar atmosphere. Each process conditions were determined by analysis of XRD, Raman, and electric resistance of the carbonized fabric. In conclusion, cellulose-based carbon fabrics were made using cellulose-regenerated fibers. Variables were adjusted for each process through a batch process study, and possibilities were presented for continuous processes. Finally, the structural, physical, electrical, mechanical and heat-resistant properties of carbon fabrics were studied.

Poly(Acylonitrile-Itaconic acid-Ethyl Cyanoacrylate) 공중합체를 이용한 탄소섬유제조 및 특성

박길영 전북대학교 일반대학원 2012 국내석사

Carbon fibers have been one of the important reinforcing materials for advanced composites due to their high strength and stiffness. It is well known that the properties of the final carbon fibers are determined by the nature of the precursors fibers. Among them, Poly(acrylonitrile)(PAN)-based precursors have proved to be the most popular for high strength carbon fibers because they are more easily converted to carbon fibers, and give a higher carbon yield than cellulosic and pitch precursors. The nitrile(C≡N)groups are preferably positioned in PAN polymers for cyclization of nitrile groups to produce the ladder structures during thermal stabilization and carbonization process. However, PAN homopolymers are not suitable for use as carbon fiber precursors because of a sudden uncontrollable exothermic reaction at a relatively high temperature, resulting in chain scission by thermal degradation and poor carbon fiber quality, Therefore, PAN copolymers are predominantly used as precursors by the incorporation of suitable comonomers such as acrylic acid(AA), itaconic acid (ITA), methyl acrylate (MA) to assist in the spinning and stabilization processes for better precursors and resulting carbon fibers. In this study, we investigated ethyl cyanoacrylate(ECA) as a potential comonomer for PAN based carbon fiber precursors. It is anticipated that the presence of carbonyl group and nitrile group in ECA should facilitate stabilization processes with easy exothermicity and improve the productivity with high carbon yield for high strength carbon fibers. ECA comonomer were polymerized with acrylonitrile(AN) and itaconic acid(ITA). The spinning system consisted with DMSO as solvent and water as nonsolvent. PAN precursors was stabilized by heating in air at 220 - 300 ℃ temperatures range and carbonized in an inert atmosphere at temperature 1200 ℃. The increase of nitrile group led to a positive influence on the mechanical property of PAN precursors and their resulting carbon fibers with high carbon yield.

빛의 시퀀스에 의한 테마파크 경관 조명에 관한 연구

박길영 홍익대학교 산업미술대학원 2010 국내석사

산업의 발달로 인하여 물질의 풍요와 여가 시간이 많아진 현대인에게 있어서 여가 시간의 활용은 삶의 질과 직접적인 관련이 있는 부분이 되었고, 삶의 질적 향상을 원하는 현대에 와서는 점점 더 여가 시간의 활용은 현대인의 화두로 거론되기 시작 했다. 현대인들의 삶의 질적 향상에 대한 욕구를 충족시키는 다양한 여가 활동 공간들 중에서 테마파크는 Reality를 벗어나서, 가족 또는 연인과 함께 즐거움과 Fantasy를 즐기는 공간으로서 탈일상적인 공간 연출을 그 목표로 하고 있다. 이러한 테마파크는 점차적으로 현실을 벗어난 해방감을 즐기는 동시에 산업 발달로 인해서 소원해진 가족들 간의 시간들을 보내는 대안 공간으로서도 자리를 잡게 되었다. 그리고 산업 기술의 발달로 인해서 야간시간대로의 활동 영역대가 확대 되면서 조명의 중요성은 점점 확대 되고 있고, 사회 문화적인 요소로 경관 조명의 역할이 더 대두가 되고 있는 것이 현실이다. 또한 야간 경관 조명에 대한 다각적인 접근을 통해서 도시 야간 환경에 대한 중요성에 대한 인식도 점차 커지고 있다. 그러나 대안 공간으로서의 테마파크의 중요성은 인식하고 있지만, 야간 경관 조명적인 측면에서의 연구나 고찰은 미비한 상황이다. 테마파크 야간 경관 조명의 구현 목표는 도시 경관 조명이 추구하는 목표와 다른 관계로 연출의 목표 , 접근 방식 및 연출 기법도 달라야 한다. 하지만, 테마파크 경관 조명 연출에 대한 연구는 아직 미흡한 상태이기 때문에, 도시 경관 조명 연출 기법을 기반으로 다양한 자료 조사와 효과적인 디자인 방법들을 모색 하여야 한다. 따라서 본 논문에서는 테마 파크 공간 인지와 야간 경관 조명 연출에 대한 개념을 시퀀스라는 개념으로 접근하여 분석하고, 테마파크의 특성 중에서 경관 조명과 관계성을 가질 수 있는 요소를 테마성, 통일성, 배타성으로 정리 한 후 빛 환경에 언어로 환원한 빛의 일관성, 재현성, 독립성을 통해서 테마 파크의 조명 연출 기법의 적용 및 분석의 틀을 잡았다. 또한 다양한 테마파크의 야간 경관 사례 조사를 통하여 현재 테마파크에서 추구하고 있는 경관 조명들의 기법을 실질적으로 분석을 하였다. 결과적으로 테마파크의 공간 지각은 시간적 흐름 속에서 인지하게 되는 것이며, 야간 경관 조명 역시도 흐름, 즉 빛에 의한 시퀀스를 통하여 공간과 장소성의 이미지로 이해하여야 한다. 조명 연출의 맥락 또한 주간과 마찬가지로 야간에도 관람객들에 대하여 테마와 스토리 구현에 그 목표를 두어야 하고, 테마의 구현은 유사환경성, 상징성, 특수 연출성과 매스(mass)적인 부분, 재질적인 부분, 색감적인 부분으로, 그리고 불연속성, 독창성, 집중성으로 구체화 할 수 있다. 야간에 테마에 대한 구현으로 조명 기법들이 각 테마에 따라서 상충 되거나 불일치 할 수 있으나, 이는 테마 재현에 따른 연출의 차이로 이해되어져야 한다. 이러한 접근은 테마파크 공간, 또는 연출성에 목적을 둔 공간에 대한 경관 조명 연출 기법 연구의 중요성을 인지하게하고, 계속적인 유사 연구를 통하여 테마 및 연출 구현의 효과적인 기법들을 찾는데 실질적인 자료가 될 것이다. Due to industrial development, our contemporaries are blessed with wealth and leasure time. Thus, the way they spend their leasure time has been more and more important to the ones who's seeking for quality life. Among various activities to fulfill one's desire to persue quality time and life, theme park became popular because one can enjoy the fantasy and achieve ‘deviation’ from everyday life with one’s family and beloved. At the same time, theme park is an alternative place where one can make up the gap between emotionally estranged family members and feel a sense of freedom. As industry develops, artificial lighting became more important due to extended working hours and the role of landscape and building facade lighting is strengthened. Also, people's interest about the importance of urban environment at night is getting bigger. Unfortunately however, there are not sufficient reliable data or study about theme park lighting design as such and such an alternative space for contemporaries. The approach in theme park lighting design is obviously different from the one from urban environmental lighting so that the goal and technique have to be differ from urban lighting design. However, as mentioned earlier, it is difficult to find reliable data on theme park lighting. So it seems inevitable that we have to make a deduction from the environmental lighting technique to realize efficient theme park lighting. In this research, lighting design for theme park is being approached and analyzed in the concept of sequence. The elements related to lighting design are going to be categorized into 'theme', 'harmony' and 'exclusivity'. The applications are to be interpreted into 'consistency', 'realization' and 'independency' in lighting environment. Further studies are done in various theme park lighting design, and lighting techniques are analyzed in this research. In conclusion, space perception in theme park is being realized in the flow of time and the light also has to be recognized as an image of space touched by the sequence of light. Lighting techniques have to reveal the theme and story as they do in the daylight. The theme can be realized by similarity, symbolism, special effects, mass, materials, and colors. It can also be realized by inconsistency, uniqueness and concentration. The difference between the sight of the scene in day and night has to be understood as the difference between the lighting techniques. I hope this research would be a practical data to figure out the way to realize theme with special effect of lighting and help recognizing the importance of special lighting technique in theme park.

少年受刑者 矯正敎育에 관한 硏究

朴吉永 경기대학교 교육대학원 2002 국내석사

It is true that the juvenile crime is in the trend of increase. Furtheiniore, it can be characterized by the words of cruelty, organization, younger-age. This feature indicates that juvenile crime is already beyond the status offence and far away from layman's imagnation of it would be. Among juvenile offenders, many of them are housed in juvenile prisons and are in the process of rehabilitation through various programs such as educational and vocational training. Nevertheless, the reality within correctional facilities has gap with the ideology of care and education which is described in the Juvenile Justice Act and the International Standard Rules for the Treatment of Prisoners. Particularly, the human resources such as correctional specialists and material resources such as housing facilities, educational materials are not focused for the streamlined rehabilitation system which pursing effectiveness of correction but is focused for the housing management system. Also, laws and regulatory measures which will insure the correctional education are not well developed. It is known that these laws and measures actually decide the method, quality and level of correctional education for juvenile prisoners. Only the Correction Bureau of the Ministry of Justice which is specialized in the treatment of adult prisoners is taking the responsibility of the management and supervision of juvenile prisons. This fact implies that juvenile offenders are not treated for the purpose of rehabilitation through adequate correctional programs but are treated as a group who should be punished for their offence. In this point, the notion that the ideology of punishment is considered as a more important value than that of rehabilitation is well-grounded. Through empirical analysis of book research and questionnaire, this study explores what measures should be implemented and improved for the effective correctional programs which can be practiced in juvenile prisons. Above all, it is necessary to re-recognize that juvenile offenders should be refouued and reintegrated by the systematic correctional programs under the custody of public authority even if they committed anti-social offences. It is generally believed that reformation by the education is more effective than by the punishment. Also, their possibility of reintegration to the society as a sound citizen is greater than that of adult offenders if proper education and personal guidance is implemented. It is why the public authority houses, manages and treats them with the unchangeable responsibility. To improve the effectiveness of educational programs and to get rid of the label of prison, following things should be accomplished. Firstly, the juvenile correction system should be reorganized to special school such as "juvenile training school" in which various educational programs can be practiced rather than juvenile prison which focuses on housing management. Secondly, facilities which are mainly aimed for adult prisoners should be renovated or rebuilt with the consideration of juveniles' mental and physical condition. Thirdly, the conversion to educational institution which aims to the effectiveness of correctional education is vital. Lastly, the increase of personnel who are specialized in correctional education with abundant experience is needed more than anything else. As a next step, correctional education should be systemized. Following this, educational, vocational and psychological programs which are for juveniles' reintegration to society should be re-arranged and supplemented. Further more, the extension of parole and the reinforcement of after-care are necessary as well. These endeavors are believed to lead to the specialization of the juvenile correction system with scientific methodology. It is because that the practical re-socialization of juvenile offenders is dependent upon how much they are close to the standard which the society sets and how much they are prepared for it. The correctional education for juvenile offenders is not conducted for the interests of a particular person. It is carried out as one of the criminal justice activities. Therefore, the laws and regulations which can ensure these activities should be streamlined and enforced. For this purpose, a rule of correctional education for juvenile offenders or a rule of classification for juvenile offenders should be enacted and the relevant articles should be added in the Penal Administration Law. As mentioned in the beginning, this study inspects the measure of how the treatment of juvenile offence can be improved. Conclusively, the problem of juvenile offence is not the problem of juvenile themselves. It is one of the most important aspects which is related to the our future and thereby should not be overlooked. Therefore, it is self- evident that more consideration and support are essential. Also, it should be recognized that the investment on the treatment of juvenile offenders for their reintegration to society is equal to the investment for our bright future.

重金屬 化合物의 毒性이 초파리 發生에 미치는 영향

박길영 中央大學校 1980 국내석사

흰쥐 腹腔肥滿細胞에 있어서 칼슘의 有無에 따른 Colchicine의 作用

박길영 전북대학교 1983 국내석사

해운환경의 구조변화와 한국해운의 대처방안 : 부정기선 해운산업을 중심으로

박길영 韓國外國語大學校 1986 국내석사

企業經營에 있어서 內部監査制度의 確立에 관한 小考

박길영 朝鮮大學校 大學院 1981 국내석사

In the Institute of Internal Auditors' fourth version of the Statement of Responsibilities of' Internal Auditors in America, it describes that modern internal auditing is an independent appraisal activity within an organization for the review of operations control as a service to management. Internal auditing is a control function as a staff between the management and its organization. And the internal auditing system is an operation system within enterprise management, This system plays a function as assistance not only to accounting audit but also to staff for auditing to the management. Modern internal auditing currently has been playing a creative service and a creative service and a positive suggestion to management. Therefore the internal auditing system includes financial, operational, and managerial auditing in the enterprise. In fact people understands that the purpose of internal auditing is to detect fraud and irregularities in financial. transactions and operations. This thesis is make a method in order to a establishment of the internal auditing system for the enterprise management, The summary of a main ideas and points of this thesis is as follows. ⑴ To survey the nature of the internal auditing. ⑵ To study comparison internal auditing with external auditing, statutory auditor's adult, and managerial audit. ⑶ To investigate an operation of modern internal auditing in the enterprise management. ⑷ To improve a internal auditing system of enterprise management in Korea enterprises. At first internal auditors' purpose was to detect fraud and irregularities in financial transactions, accaunting, and operations. But modern internal auditing plays a part of managerial counsellor enterprise management. Accordingly present internal auditors requires higher state of mind, skills, experiences, and training in management. If the internal auditing and the external auditing should be cooperate each other and operated equally they will reduce the overall costs and time and avoid duplication of their efforts. The independence in internal auditing department is essential to the effectiveness of inter auditing, the internal auditing report is a final procedure. This report must be writtren positively, accurately, cleary, concisely and timely Based on summary o f the above, the following suggestion are presented for the improvement of the internal auditing system in the enterprises, Particularly, the solutions for the improvement of internal auditing system In Korean ante- rises are Put forth as follows. First, It should be establisbed the internal auditing system by a top management In Enterprise management. Second, professional organization of the internal auditors like the Institute of Internal Auditors in America should be formed for studies, announcement, establishment and education of internal auditing. Third, The qualities of internal auditors should be advanced. This thesis consists of the eight chapters which are as follows . Chapter I. Introduction Chapter 11. Conception of internal audit Chapter 111. Procedure of putting in practice of' the internal auditing Chapter IV. Cognition of the internal auditing system Chapter V. The internal auditing system and the enterprise organization Chapter Ⅵ. The internal auditing system of enterprises in advanced countries. Chapter VII. Improvement of the internal auditing system. in Korean enterprises. Chapter Ⅷ. Conclusion.

부산항 신항 배후단지의 경쟁력 제고 방안-북컨테이너 배후단지의 효율성 측정을 토대로

박길영 부경대학교 대학원 2016 국내박사

A Scheme on the Competitive Improvement of Port Hinterland in Busan Newport – Based on the Measurement of Efficiency on North Container Hinterland Gil Young Park Department of International Commerce & Logistics, The Graduate School, Pukyong National University Abstract This study first conducted Data Envelopment Analysis(DEA) on logistics centers using financial statements from DART(http://dart.fss.or.kr) of Financial Supervisory Service. The study secondly acquired competence factors and its order of hierarchy through factor analysis. These data then were analyzed using Analytic Hierarch Process(AHP) to further categorize them in the order of importance in improving competitiveness of logistics centers. Lastly, this study aims to provide a direction to improve competitiveness and expand opportunities for port hinterland which was developed as the part of major national projects. To test efficiency of logistics centers in North Container Hinterland, using non-parametric DEA method, the study utilized financial statements of 19 logistic centers for the last three years. Efficiency level of annual average for logistics centers increased year by year. However, among the 19 logistics centers tested, 7 logistic centers are in need of improving their efficiency. Logistics centers which showed high level of efficiency in profitability index had better results in the DEA analysis as well. Among the 19 logistics centers tested, 40% needed to improve their efficiency. Revenue, profitability and net income peaked in year 2012 and hasn’t recovered until year 2014. This study implies to improve efficiency of port hinterland, pursuing economies scale through raising size of land and logistics facilities is necessary. As for enhancing competitiveness of North Container Hinterland, this study can be summarized as follows. Firstly, for management and decision makers of logistic centers, marketing factor proved to be most important factor among first tier factors. Secondly, partnership with global company, which can provides cargo to logistics centers was ranked first place among the second tier importance order. Other factors such as port’s cargo volume, alliance with other logistics companies, and well-established infrastructure followed accordingly. Even for second tier, factors contributing to increase in cargo volume were ranked higher place. Third, considering the fact that “vicious cycle of insufficient cargo volume → fierce competition → drop tariff rate → financial difficulties” faced by logistics centers persists although considerable time elapsed. From above mentioned study, following counter measures to improve competitiveness could be drawn. First, there is need to improve sales efforts as well as quality of service to ensure logistics centers are supplied with sustainable cargoes. In addition, there is need to seek long term partnership with customers. Second, strategic ties with related government organizations are crucial to induce global and big customers with large volume of cargoes utilizing governmental policy. Third, governmental policy should guide customers to frequently use port hinterland area. Fourth, there is a need to adjust supply plan of logistics centers by accurately forecasting goods being processed in port hinterland area to prevent fierce competition and sharp drop in rate. There also is a need for relaxed evaluation system on land rental fee and contract commitments failure which system is putting a strain on management of logistics center. Lastly, there is need to flexible policy for management of port hinterland area such as merging small logistics companies to create scale economies, acceptance of returning land lease, and change of business style etc. World’s major logistics hubs are concentrating their competitiveness through combining production and logistics pursuing the goal of becoming green logistics clusters with the aid of large ports and airports. Turning port hinterland into the port clusters to add value, increase quantity of cargo volume in improving Busan New Port Hinterland’s competitiveness. Furthermore it also is an effective way to support nation’s plan of becoming hub for logistics hub in Northeast Asia.