北韓의 金正日 權力承繼 政策에 關한 體系論的 硏究

박승영 서울大學校 大學院 1988 국내석사

EPON System(ONU)에서 MPCP Block의 Parser 및 Multiplexer 설계

박승영 漢陽大學校 工學大學院 2004 국내석사

PDA 시스템과 映像處理에 의한 粒經 計測技法의 檢證的 硏究

박승영 全北大學校 大學院 1994 국내석사

It is necessary to measure of drop size in a wide number of applications including fuel sprays for combustion, agricultural sprays, spray painting, spray drying processes, cooling purposes, mterorology, and aircrafticing. Since many processes depend critically on the average drop size and size distribution, an accurate analysis of these parameters is very important. The numerous experimental techniques have been developed for measuring drop size in spray. The techniques can be broadly classified into three categories; mechanical methods, electrical methods, and optical methods. Within each of these main groups there are also a number of convenient subdicisions. The purpose of this study is to compare between PDA system and image processing technique about the atomization characteristics of drop-size distribution of the spray. The nozzle employed in this study was an air-blast liquid-sheet type coaxial nozzle. Water and air were used as the working fluids. The mass flow rates of water were varied from 0.03 to 0.06, and the air flow rates were contolled to have the air/liquid mass ratio(Mr)from 1.0 to 6.0. As a result, the tendency of drop-size distrivution by PDA system had a good agreement with that by image processing system, but since smaller droplets were detected in PDA system, the SMD measured by PDA system was generally about 30% lower than that by image processing technique. The cumulative formula suggested by Rosin & Rammler had a good agreement with the data of two measurement techniques and the predicted SMD calculated by upper-limit distribution function illustrated an excellent correlation with the data by PDA system and image processing system.

박판 루프형 모세 구동 노트북 컴퓨터 냉각기 기술 개발

박승영 부산대학교 대학원 2008 국내석사

Advanced computers need effective cooling system because of high heat generation and reduction of the available heat removal surface area. The working temperature of electronic components may exceed the required temperature level, which in turn increases the system failure rate. Hence, the requirement of efficient and compact cooling system is increasing. Conventional cooling system of high performance note book PC is consist of heat pipe, heat sink and a cooling fan. And the thermal resistance of heat sink is occupied 80% of total thermal resistance of the cooling system. It means how to reduce thermal resistance of heat sink is the key of making efficient cooling system. In this paper, to make efficient cooling system, the whole cooling system includes heat sink was embodied to the capillary pumped loop. And this effective cooling system was designed, fabricated, and tested. In conclusion, capillary pumped loop cooling system with 1.6mm thickness was developed for 20W cooling capacity. Total thermal resistance was measured to be 3.82℃W when the 30% of total volume was charged with coolant. Metal bonding technology must be developed for commercial bottom. And to enhance capillary pressure and to reduce flow resistance the metal etching with high aspect ratio must be developed for more effective cooling system.

Diversification of pyrrolo[2,3-d] pyrimidine by microwave mediated Cu-catalyzed N-arylation coupling reaction

박승영 忠南大學校 大學院 2017 국내석사

pyrrolo[2,3-d]pyrimidine 은 매우 넓은 범위의 생리학적 활성을 나타내고 항암제, 류마티스 관절염 치료제, 단백질분해효소 억제제 등, 많은 의약품들에서 찾아볼 수 있다. 이 논문에서는 N-arylated pyrrolo[2,3-d]pyrimidine을 합성하여 다양한 약효를 나타낼 수 있는 생물학적 테스트에 이용하고자 한다. C-N 결합의 열적인 반응은 많은 시간을 필요로 하고 복잡한 반응 조건들을 필요로 한다. 하지만 마이크로웨이브를 통한 반응은 고전적인 열 반응에 비하여 반응시간을 단축할 수 있고 반응 부산물들의 생성을 감소시키며 리간드를 사용하지 않아도 된다는 장점이 있다. 본 연구에서는 기존의 열 반응과 다르게 마이크로웨이브 반응을 통하여 pyrrolo[2,3-d]pyrimidine의 유도체를 합성하는 연구를 진행하였고, 이는 시간 단축과 더불어 높은 수율의 결과를 나타내었다. 4-위치를 치환한 pyrrolo[2,3-d]pyrimidine과 arylhalide, Cu2O 촉매와 1당량의 염기를 사용해 200℃에서 반응 시킨 결과 다양한 pyrrolo[2,3-d]pyrimidine의 유도체를 성공적으로 합성할 수 있었다. 결과적으로 효과적인 합성방법을 제시하여 고전적인 반응 조건의 한계를 극복하였고, 다양한 N-arylated pyrrolo[2,3-d]pyrimidine을 합성함으로써 pyrrolo[2,3-d]pyrimidine의 chemical library를 구축하였다. Pyrrolo[2,3-d]pyrimidine derivatives have shown wide range of biological activities, such as anticancer effect, rheumarthritis medicine, and antagonist effect to receptors, etc. In this dissertaion, we synthesized N-arylated pyrrolo[2,3-d]pyrimidines expected for variety biological tests. To synthesize pyrrolo[2,3-d]pyrimidine derivatives, thermal C-N coupling reaction needs long reaction time and requires harsh conditions, but microwave reaction has the advantage of reducing reaction time and side effects compared to thermal reaction. In initially study, we examed the difference reaction conditions for thermal reaction using microwave reaction. In the microwave conditions, N-arylated pyrrolo[2,3-d]pyrimidine derivatives can be synthesized within a short reaction time and high yield without ligand. The genaral reaction conditions established 4-substituted pyrrolo[2,3-d]pyrimidine with 1.5 eq arylhalides under 10 mol% Cu2O, 1 eq Cs2CO3 at 200℃. The result showed useful synthetic methods compared with thermal synthetic methods. The various 4,7-substituted pyrrolo[2,3-d]pyrimidines were synthesized. The chemical library of pyrrolo[2,3-d]pyrimidine was constructed by N-arylated pyrrolo [2,3-d] pyrimidines.

호텔조직문화가 경영성과에 미치는 영향

박승영 경기대학교 대학원 2003 국내박사

개방화 및 세계화, 고객 욕구의 다양화, 기술혁신의 가속화, 그리고 조직구성원들의 가치관의 변화 등으로 특징지어지는 최근 경영환경 변화에 따라 많은 기업들은 리엔지니어링, 벤치마킹, 고객만족경영, 전략적제휴, 지식경영 등과 같은 많은 경영혁신기법을 도입하고 있다. 호텔기업도 예외는 아니어서 호텔서비스 노동시장의 유연성을 확보하고 경영효율성을 높이기 위한 각종의 경영혁신기법을 도입하고 있다. 이러한 경영혁신 프로그램의 성공을 위해서는 무엇보다 호텔조직문화의 창출과 효과적인 관리가 중요하다는 점이 재차 강조되면서 호텔조직문화에 대한 관심이 고조되고 있다. 기업들의 제반 마케팅활동의 궁극적 목표이며, 마케팅 이념의 기저를 구성하는 고객 만족은 마케팅이념을 실천하는 요체로서 고객만족을 실천하는 기업의 노력은 시장지향성의 개념으로써 최근 활발히 연구되고 있다. 또한 기업의 우월한 가치는 시장에서 서비스에 대한 고객들의 '원하는 바'에 반응함으로써 창출되고 유지될 수 있으며, 이러한 관점에서 고객지향성과 서비스지향성이라는 개념 하에 연구가 진행되고 있다. 본 연구는 인적자원에 대한 의존도가 높은 호텔기업이 내·외부적 환경변화에 대응하여 조직내 구성원들에게 일관된 사고와 행동방향을 제시해 줄 수 있는 호텔조직문화 형성과 이에 따른 호텔경영성과를 높일 수 있는 경쟁우위전략 도입이 매우 필요한 시점에서 고객을 위한 우수한 가치를 창조하고 지속적 경쟁우위를 얻기 위해 호텔기업이 필요로 하는 호텔시장지향성과 서비스지향성간의 영향정도를 실증적 분석하여 호텔경영성과를 극대화 할 수 있는 방안을 모색하고자 추행되었다. 호텔조직문화에 대한 이해의 폭을 넓히기 위하여 조직문화의 일반적 개념, 조직문화의 유형 그리고 조직문화의 연구동향에 대하여 살펴보았고, 호텔기업의 시장지향성, 서비스지향성, 조직유효성, 경영성과의 개념 및 제 변수들간의 관련성 및 선행연구동향을 근거로 변수들을 각각 하나의 차원으로 통합하여 이 통합변수들이 호텔조직문화와 경영성과간의 관계에서 어떠한 매개적 역할을 하는지 그 인과관계를 밝히고자 하였다. 이러한 인과관계를 파악하기 위하여 여러 분야의 규범적 논의와 실증연구를 토대로 통합적 연구모형을 설정하여 연구모형의 인과관계에 대한 8개의 가설을 설정하였다. 조사의 실증분석을 위한 자료수집은 여러 가지 방법과 절차에 의하여 수집되었고, 2003년 2월 17일부터 3월 3일까지 15일간에 걸쳐 설문조사를 실시하여, 최종 유효표본 533부(특1급 221부, 특2급 312부)를 확정하여 실증분석에 사용하였다. 실증분석에서의 통계처리는 PC SPSSWIN Version 10.0을 활용하였고, 연구모형은 AMOS Version 4.0 통계패키지 프로그램을 활용한 구조방정식모델(structural equation modeling)분석 절차가 적용되어 추정되었다. 연구모형 검증을 위해 실시한 모델의 전반적인 부합도 평가에서는 전반적인 부합도 평가지수가 모두 양호한 것으로 판명되었다. 본 연구모형의 연구단위들간의 관계분석 결과에 있어서는 호텔시장지향성이 호텔조직유효성 및 경영성과에 직접적인 정(+)의 영향을 미칠 것이라고 가정된 인과관계만이 유의하지 않은 것으로 나타났고, 나머지 다른 개념들간의 관계는 모두 유의한 것으로 나타나 구조방정식모델에 대한 측정모델의 추정치는 타당한 것으로 나타났다. 향후 연구에 있어서는 조사대상에 관리층 이상의 직급 및 조리부서를 포함시켜 연구함으로서 전사적 차원의 마케팅 전략 수립을 위한 제언을 할 수 있을 것으로 사료되었다. 또한 과학적이고 객관적인 측정변수의 개발로 호텔 조직문화와 경영성과간의 관계에 있어서 호텔조직문화와 호텔조직유효성간의 인과관계를 규명할 후속 연구를 제안하였으며, 정량적 측면에서 객관성이 확보된 경영성과 지표를 개발한 후속 연구가 이루어지기를 제안하였다. The hotel businesses are introducing diverse management innovations to secure the labor market for the hotel service, and to improve the efficiency of the management. For this, the hotel organizational culture which is focused on its embodiment and its efficient administration is being attracted public attention. Therefore, the main purpose of this study is to search for planning the maximum efficiency of the management performance through the analysis of contact between the hotel organizational culture and market-orientation and service-Orientation in hotel business. This study also will inspect the general concept of mobilities among factors, their types and their movements, and will identify what causal relationship will be showed among mobilities of the hotel organizational culture, the management performance, market-orientation, service-orientation and their efficiency. I collected data for 15 days from February 17 to March 3, 2003 for the practical analysis and settled definitely the final 553 samples as availabilities, and I used them as data for the practical analysis. I applied PC SPSSWIN Version 10.0 for this study for statistical application and I assumed the result of this study through structural equation modeling by AMOS(analysis moment of structure) for my academic application. To summarize the result of the data through covariance structural modeling is as follows; First, the hotel organizational culture had a direct effect toward the positive direction of market-orientation and service-orientation, and also the factors of the former were involved in those of the latter. As a result, market-orientation and service-orientation depended on the hotel organizational culture and its mobilities, and conversely, the organizational culture had a positive effect on market-orientation and service-orientation. Second, market-orientation had a direct and positive effect on service orientation. That is, the more the business was interested in market-orientation, the higher it had a tendency to the service-orientation in businesses. Consequently, this study proved that market-orientation had been deep involved in service- orientation. Third, this study showed that market-orientation had little to do with the adequate arrangement of the members and management performance. This means that even if the hotel businesses make an efforts to be market-oriental, they are not helpful for the adequate arrangement of the members and management performance. This means also that market-orientation can effect indirectly on the adequate arrangement of the members and management performance through a medium of service-orientation. Forth, service-orientation had a direct and positive effect on the adequate arrangement of the members and management performance. This showed that the more the business was interested in service-orientation, the higher it had a tendency to the adequate arrangement of the members and management performance Fifth, It is said that the adequate arrangement of the members had a direct and positive effect on management performance. It seems that the members who are absorbed in their organization have a tendency to remain the organization, and show very low rate of movement. From this result, we see that market-orientation and service-orientation have a great effect on the adequate arrangement of the members and manage- ment performance as a consequence of analysis through test mobilities between the hotel organizational culture and performance. And the members' recognition according to the hotel management have nothing to do with the grade of hotel evaluation. In other words, this thesis indicates that it is necessary to develop the organizational culture consorting with collective traits of hotel businesses. In addition, this thesis shows that one hotel can keep superior to another in the hotel market, by doing its best for developing market-Orientation and service-orientation matching with the trait of the organizational culture and management. Henceforth, I want to suggest that the further study should be expand to administrative class and be excluded the minimum error of the samples and the problem of the general application. I also want to expect that the further study can make clear the cause and effect between the organizational culture and the adequate arrangement of the members, and can secure the useful index and objective validity of all the factors.

다양한 식품에서의 곰팡이독소 분석 개선 연구

박승영 한양대학교 대학원 2022 국내박사

곰팡이독소는 농작물의 수확전후 저장 환경에 따라 곰팡이에 의해 생성될 수 있는 자연독소이다. 특히, 아플라톡신은 국제암연구소에서 1급발암물질로 지정하고 있고 데옥시니발레놀은 위장장애 등 인체에 위해한 영향을 끼쳐 세계 많은 국가들이 기준을 설정하여 관리하고 있으나 국가별로 식품의 종류와 그 기준범위가 매우 상이하다. 본 연구는 다양한 식품에서 아플라톡신과 데옥시니발레놀의 법적 규제기준을 충족하면서 식품 특성을 고려한 최적의 분석법을 개발하고자 수행되었다. 영유아식품 및 식용유지 중 아플라톡신 4종과 곡류 중 트리코테센류 type B를 대상으로 고성능 액체크로마토그래피를 이용한 정량 분석법을 각각 확립하였다. 필수적인 검증항목(정량한계, 검량선의 직선성, 분석의 재현성, 매트릭스 이펙트, 회수율 시험)을 검토하였다. 영유아용식품에 대한 아플라톡신 시험법은 식품공전의 방법이 적합하였으나, 정량한계를 낮추기위해 기기분석 조건을 변경하여 시험법을 검증하였다. 아플라톡신(B1, B2, G1, G2)에 대한 회수율은 89.5~92.3%로 양호한 결과를 얻었으며, 검출한계는 아플라톡신 B1 0.019, B2 0.015, G1 0.053 및 G2 0.012 ug/kg 이었다. 식용유지는 MSPD(matrix solid phase dispersion)법으로 아플라톡신을 추출해 내고 면역친화성 컬럼을 사용해 정제하여 형광검출기가 장착된 고성능액체크로마토그래피(HPLC/FLD)를 이용해 분석한 결과 직선성은 0.999 이상을 나타냈고 회수율은 85.9~93.0%의 양호한 결과를 얻었으며 상대표준편차는 5.7% 이하였다. 곡류 중 데옥시니발레놀, 3-아세틸데옥시니발레놀, 15-아세틸데옥시니발레놀의 분석은 84% ACN으로 추출한 후 Mycosep column으로 정제하여 HPLC/UV로 측정하였으며 이때의 이동상용매는 gradient 조건으로 동시분석 하였다. 시험법 검증결과 데옥시니발레놀, 3-아세틸데옥시니발레놀 및 15-아세틸데옥시니발레놀의 검출한계는 각각 0.2, 0.1 및 0.1 mg/kg, 직선성은 0.999 이상을 나타냈으며, 회수율은 85.0~107.3%, 상대표준편차는 4.6% 이하였다. 또한 확립된 시험방법으로 FAPAS QC sample을 분석하여 측정불확도를 추정한 결과 0.306 ± 0.006 mg/kg으로 산출되었다. 본 연구에서 개발된 모든 시험법의 신뢰성을 확보하고자 AOAC 분석법 가이드라인에 준하여 검증한 결과 모든 항목이 AOAC 가이드라인에 만족하여 시험법의 정확도와 재현성이 확보되었음을 확인하였다. 또한, 국제정도관리 프로그램(FAPAS)에 참여하여 만족할 만한 결과를 얻어 시험법의 정확도를 제고하였다. 확립한 시험법으로 국내 유통 중인 식용유지류, 영유아식품 및 곡류에서 아플라톡신, 트리코테센류 type B의 오염실태를 확인한 결과 안전한 수준임을 확인하였다. 본 연구에서 확립한 시험법은 곰팡이독소의 다양한 국제기준을 충족할 수 있어 공인시험법으로 활용가능 할 것으로 판단된다. Mycotoxins are known as natural food toxins produced by certain fungi grown on various cropsduring pre-harvest and post-harvest conditions. Aflatoxins have been classified as carcino-genic to humans, and deoxynivalenol has a harmful effect on the human health such as vomiting and gastrointestinal disorders. Although mycotoxin, which can be dangerous to human health, is legally regulated worldwide, regulatory standards vary from country to country. The purpose of this study is to develop a pretreatment method suitable for characteristics because the composition of food is complex and diverse, and to prepare an analytical method that meets legal regulatory standards. Using high-performance liquid chromatography, analysis methods of aflatoxin of infant food and food oil and tricotesene type B of grain were established, respectively. We were determined the occurrence of aflatoxins(B1, B2, G1 and G2) in edible oils and infant-children foods in Korea. Therefore, this study developed condition of extract for aflatoxins(B1, B2, G1 and G2) in edible oils using a high performance liquid chromatography with florescence detector(HPLC/FLD). Aflatoxins were extracted from edible oils sample by means of MSPD(matrix solid phased dispersion), utilizing C18 as dispersing material and purified using immunoaffinity column. There regression line coefficients of determination were above 0.999. The recoveries for aflatoxins ranged from 85.9 to 93.0%, and relative standard deviations was below 5.7%. The newly developed method of aflatoxins effectively enhanced recoveries by using MSPD compare with Korea food code analytical method. Reviewing the current method, the recoveries of aflatoxins(B1, B2, G1 and G2)were 89.5~92.3% in order and their limits of quantitation (LOQ) were 0.019, 0.015, 0.053 and 0.012 ug/kg in order. A survery of aflatoxins was conducted on 110 edible oils and 106 infant-children foods. Samples were collected from market in Korea. Analytes were extracted from cereals by homogenization with acetonitrile:D.W.(84:16) and crude extracts was cleaned-up Myco-sep column. The analytical method using gradient solvent system was capable of separating a mixture of the DON, 3-ADON and 15-ADON. The overall method showed high precision and good linearity of calibration curves(above r2=0.999). The mean of recoveries for tested compounds ranged from 85.0 to 107.3%, and relative standard deviations was below 4.6% and their limits of quantitation (LOQ) were 0.2, 0.1 and 0.1 mg/kg in order. For quality control, Fapas QC material was digested same protocol as analyzed cereal sample. The evaluation parameters were selectivity, matrix-matched standards, linearity of calibration, accuracy, precision, the limit of quantitation (LOQ), and matrix effects. Most target compounds were found to be in acceptable quantities under the requirements of the validation guidelines. The optimized method was successfully applied to the analysis of mycotoxins in real samples. According to the result of the monitoring, aflatoxin B1 was detected five samples representing 4.7% and its level in infant-children food ranged from 0.06~0.14 ug/kg. No afltoxins contamination were detected in edible oils. A survey of deoxynivalenol and its derivatives was conducted on 458 cereals. Samples were collected from market in Korea. According to the result of the monitoring, deoxynivalenol and 15-ADON was detected 38 samples(8.3%) 2 sample(0.4%) rspectively. The analysis method established in this study can meet various regulation limit levels of mycotoxins and can be used as a certified analysis method

인도네시아인 학습자를 위한 한국어 쓰기 교육 방안 연구 : 취업용 자기소개서를 중심으로

박승영 韓國外國語大學校 敎育大學院 2020 국내석사

The purpose of this study is to suggest teaching method of writing self-introduction letters for a job to Indonesian Korean language learners by analyzing the characteristics in their self-introduction letters. Since exchanges between Korea and Indonesia are growing and employment opportunities for Indonesian are increasing in Korean enterprise, the number of Indonesian Korean learners for employment is expanding. They confront difficulties in writing their self-introduction letter while preparing to get a job in Korean enterprise. Indonesian Korean learners who are used to their culture become confused in a situation when they have to write Korean style self-introduction letters. They are also unable to contain a form and contents which Korean enterprise require. In addition, studies on business Korean and writing education targeting Indonesian are insufficient. Therefore, in order to propose self-introduction letter writing teaching method for Indonesian Korean language learners, this study collected 25 free-formed writing surveys by Indonesian Korean learners and analyzed them. First, composition of format and contents of Indonesian style self-introduction letters have been examined based on literature review. Next, in order to look into genre understanding and descriptive characteristics regarding self-introduction letter for a job, the surveys have been analyzed in terms of format, content, and linguistic aspects. In the aspect of format, the structure and type of writing have been analyzed by comparing Korean self-introduction letters and Indonesian self-introduction letters which is common used in Indonesian employment culture. In the aspect of content, whether self-introduction letters of Indonesian Korean language learners have included the items commonly appearing in previous studies have been expressed by frequency and percentage. In the aspect of linguistic, whether Indonesian Korean language learners have used appropriate vocabulary and sentences in accordance with the needs by Korean enterprise has been examined. As a result of analyzing self-introduction letters by Indonesian Korean language learners in the aspect of format, content, and linguistic, Indonesian Korean language learners had not perceived difference in format and had written them as a letter. When it came to writing paragraph, self-introduction letters had become unconvincing due to shortage of premise, reason, and basis of argument related to key concept. Also, Indonesian Korean language learners did not contain the contents which readers want to see after failing to understand intention of item and merely focused on enumeration and describing certain items. They confused sentence-closing ending '-습니다' and '-는다'. They were also unable to distinguish written language and spoken language. In addition, on their writing linguistic errors had appeared due to native language interference and included errors in spacing words and spelling(the rules of Korean orthography). Thinking that there are limitations to educate Indonesian Korean language learners who have such characteristics with only genre or process-based approach, this study proposed teaching method of writing self-introduction letter for Indonesian Korean language learners based on process-genre integrated approach. Process-genre integrated writing education is combined genre-based approach which Indonesian Korean language learners clearly suggest structure and expression of text and with process-based approach that reflects strategy and recursive writing process able to make independent texts. Indonesian Korean language learners who jump into job market after graduation need ample understanding of the Korean employment culture before entering the society. In Particular, they need to possess language ability meeting expectation of firms hiring Indonesian Korean language learners. In this sense, there is a significance that this study proposed teaching method for Indonesians based on process-genre integrated approach by analyzing their actual writings who eager to get a job at Korean enterprise. Furthermore, understanding situational context of writings and delivering contents through strategic methods can be applied not only to self-introduction letters but also to diverse writing related to work. This study would enhance self-introduction understanding and organization and development ability of self-introduction letter for a job to Indonesian Korean learners who are wanting to be hired at a Korean enterprise.

イネワラのアルカリ系蒸解における脫リグニン及び脫シリカの擧動に關する基礎的硏究 : Fundamental studies on the behaviors of delignification and silica removal from rice straw under alkaline pulping conditions

박승영 東京大學 1999 해외박사

볏짚을 원료로 하여 펄프 생산을 하는 데 있어서 가장 큰 문제가 되는 것은 15∼23% 함유된 실리카 성분이다. 실리카는 알칼리증해 과정에서 폐액중에 용출되어 증해약품을 회수하는데 여러 가지 문제를 일으킬 뿐만 아니라, 환경오염의 원인이 되고 있다. 따라서, 세계적으로 벼과식물 펄프화는 감소 추세에 있으며, 자원의 유효이용이라는 측면에서 악영향을 미치고 있다. 제1편에서는 알칼리증해에 있어서 탈실리카 반응에 관한 영향 인자를 검토하였다. 알칼리증해 및 산소-알칼리증해에서는 탈리그닌의 진행과 함께 탈실리카도 진행되지만, 고도의 탈리그닌을 달성한 설파이트증해와 암모니아증해 펄프에서는 비교적 많은 양의 실리카가 잔류된 것을 확인하였다. 증해후 각증해 폐액의 pH와 탈실리카 및 탈리그닌과의 관계를 분석한 결과, 탈실리카 반응은 pH 및 온도와 밀접한 관계가 있는 것으로 나타났다. 제2편에서는 알카리증해 과정에 있어서 탈실리카와 탈리그닌 거동을 속도론 적으로 비교하였다. 탈실리카의 속도 정수는 탈리그닌의 속도 정수보다도 항상 크며, 처리 온도를 올렸을 경우 속도정수의 증가도, 탈실리카가 탈리그닌보다도 큰 것으로 나타났다. 이것으로부터 NaOH와 같은 강알칼리를 이용하는 한, 탈실리카를 억제한 탈리그닌 진행은 불가능하다는 것이 확인되었다. 세포벽 성분들의 반응속도론적 검토로부터 탈실리카 반응은 단지 알칼리에 의한 용해 반응이고, 이러한 반응은 다른 세포벽 성분들의 용출 거동에 의해 거의 영향받지 않는 것으로 나타났다. 제3편에서는 탈실리카 억제를 위한 산소-약알칼리 펄프화에 관한 연구 결과로부터, 산소-설파이트증해법이 유효한 것으로 확인되었으며(수율 약 70%), 펄프의 분자량 및 중성당 분석 결과, 높은 탄수화물 보류를 나타냈다. 이러한 결과는 목재의 증해법으로도 검토 해야할 학문적인 의의를 가지며, 환경문제의 해결을 위한 실리카의 단계적 분리 가능성을 열어 놓았다.

이만방의 String quartet No.2 “아미타”제1악장 분석 연구

박승영 숙명여자대학교 대학원 1996 국내석사

String Quartet No.2 "Amitayus" of Yi, Man Bang is based on Korean traditional burial ceremony and is composed five Movement. Especially, 1st Movement is founded on Korean traditional idea and develope new materials. Therefore this treatise deal with only 1st Movement. 1st Movement analysis is sufficient to know String Quartet No.2 "Amitayus" total characters. Yi, Man Bang expressed Korean traditional music spirits in this works. For represent Korean traditional music spirits, he usesd harmonic scale and applied special intervals{M2, m3, P4) of Korean North Kyemun scale in horizontal interval process or harmonic process. In rhythm, he used Jin-Yang rhythm which is Korean traditional rhythm. But he is not attached to only Korean traditional materials in this works. IIe takes up harmonic process based on natural harmonics, 1/4 micro tone, new special notations which reflect his continuous interest and study on new sound. String Quartet No.2 "Amitayus" is Yi's third period work. His third period continue. We expect that his interest in Korean tradition and composer's spirit how expressed in the works.