Pd^(1) Location and Adsorbate Interactions in PdH-SAPO-34 studied by EPR and Electron Spin-Echo Modulation Spectroscopies

Back, Gern-Ho,Yu, Jong-Sung,Vadim Kurshev,Larry Kevan 國立 昌原大學校 基礎科學硏究所 1994 基礎科學硏究所論文集 Vol.6 No.-

EPR and electron spin-echo modulation (ESEM) spectroscopies have been used to monitor the location of Pd_(II) and its interaction with water, methanol, ethanol, ethene, benzene, carbon monoxide and ammonia in silicoaluminophosiphate type 34 (SAPO-34) molecular sieve containing Pd(II) by ion exchange. After activation at 600℃, three different Pd' species are observed: A_(1)(g_(⊥) = 2.177), A_(2)(g_(⊥) = 2.136) and A_(3)(g_(⊥) = 2.070) with a common g_(Ⅱ)= 2.92. These correspond to three different site locations in the framework. A_(1) is assigned to the least accessible site Ⅲ in the centre of a hexagonal prism, A_(3) to site I displaced from a six-ring into the ellipsoidal cage and A_(2) to the most accessible site Ⅳ near an eight-ring window based on adsorption of oxygen and hydrogen and ^(31)P modulations from the SAPO framework observed by ESEM. Oxygen and water oxidize Pd_(I) lons in an activated sample to Pd^(Ⅱ) ions complexed to O_(2)^(-), indicating water decomposition. Adsorption of methanol and ethanol causes a change in the EPR spectrum which indicates some relocation of Pd^(Ⅰ) to allow better coordination with one molecule of the alcohol. Exposure to ethene also changes the EPR spectrum, indicating interaction of Pd^(Ⅰ) with it. ESEM shows that the Pd^(Ⅰ) species coordinates to one ethene molecule. The adsorption of carbon monoxide results in a Pd^(Ⅰ) complex with three molecules of carbon monoxide based on resolved ^(13)C superhyperfine splittings. Upon adsorption of ammonia, one molecule of ammonia coordinates to Pd^(Ⅰ) based on resolved nitrogen hyperfine coupling.

신경회로망을 이용한 용접잔류응력 예측 및 최적의 용접조건 선정에 관한 연구

차용훈,김하식,이연신,김덕중,성백섭 朝鮮大學校 機械技術硏究所 2000 機械技術硏究 Vol.3 No.1

The objective of the study is the development of the system for effective prediction of residual stresses using the back propagation algorithm from the neural network. The achieve of this goal, the series experiment were carried out and measured the residual stresses using sectional method. Using the experimental results, the optional control algorithms using a neural network should be developed in order to reduce than the effect of the external distribution during GMA welding processes. Also, comparison with the measured and the calculated results from the FEM(finite element method) and verification of the developed system was carried out. This system can not only help to understand the interaction between the process parameters and residual stress, but also, improve the quantity control for welded structures. Then the results obtained from this study are as follows. Through comparison between the measured and calculated results, the neural network based on back propagation algorithm is the best techniques to predict the process parameter. A new techniques which predict the process parameter such as welding voltage, arc current, welding speed using the training the raw dates, will be proposed.

스포츠 용품 브랜드 특성이 브랜드 충성도에 미치는 영향

백남섭,이종화 龍仁大學校 2004 용인대학교 논문집 Vol.22 No.-

This study is designed to shed a light on the effects of sport goods brand features on brand loyalty among university students. 240 students were chosen from University Y located in Gyeonggi-do. Among 240 questionnaires distributed and collected, 27 were excluded from the study because they were not either thoughtfully or completely answered. As a result, only 213 questionnaires were adopted and analyzed. The reliability test by using Cronbach's alpha method has the following results: the brand recognition reliability is .7611; the brand image reliability is .9254; the reliability in brand personality is .8176, and the reliability in brand loyalty is .8268. This paper utilizes the statistical data analysis methods including frequency analysis, t-test, One-way ANOVA, Scheffe's test, correlation analysis and regression analysis. The findings acquired based on the aforementioned research methods and data analysis are as follows: First, the brand recognition shows statistically significant difference at the 5% level by gender and age, but no statistical significance is found by grade. Second, brand image shows 5%-level statistically significant difference by grade and age, but no significant difference is detected by gender. Third, the gap in brand personality shows statistically significant difference at the 5% level by grade and age, but the significant difference is not found by gender. Fourth, the brand loyalty of those surveyed shows statistically significant difference at the 5% level by grade and age, but no significant difference is found by gender. Fifth, as for the effect of brand characteristics on university students' brand loyalty, brand recognition and brand image show statistically significant impact at the 5% level. Brand characteristics are found to generate 35.2%(R²=.352) influence on brand loyalty.

지역사회의 민주화와 삶의 질 : 진주시 사례연구

백종국 서울대학교 사회과학연구소 1995 社會科學과政策硏究 Vol.17 No.2

입력 역률을 개선한 3상 PWM AC/DC 콘버터에 관한 연구

백종현,권순걸 慶南大學校 附設 工業技術硏究所 1996 硏究論文集 Vol.14 No.1

본 논문에서는 예측제어기법으로 알려진 제어기술을 3상 PWM AC/DC Boost 콘버터에 적용하여 입력 선전류와 역률을 개선하는 방법을 제시한다. 예측제어기법은 매 샘플링 시간마다 실제전류가 기준전류를 추종하기 위해 필요한 전압을 계산하여 이에 따른 스위칭을 결정하는 방법으로, 샘플링 주기에 의해서 스위칭 주파수가 결정되며, 부하에 관계없이 스위칭 주파수가 항상 일정하다는 특징이 있다. 따라서, 이 제어기법을 3상 PWM AC/DC Boost 콘버터에 적용함에 의해 출력전압의 맥동을 감소시키기위한 필터 콘덴서의 용량을 줄여줄수 있고, 입력 선전류의 저차 고조파 성분을 줄여 파형이 거의 정현파가 되도록 함으로써 파형과 역률을 개선시킬수 있다. In this paper, three-phase PWM AC to DC Boost converter that operates with unit power factor and sinusoidal input line currents is presented. The current control of this converter is based on the predicted current control method with fixed switching frequency and the line currents track to reference currents within one sampling time interval. By using this control method low ripples in the output current and the voltage as fast dynamic response are achieved with small dc link capacitance employed.

英國의 行政訴訟上 原告適格의 法理의 變化

白種仁 전북대학교 법학연구소 1990 法學硏究 Vol.17 No.-

Locus standi asks the question whether a particular plaintiff is entitled to invoke the jurisdiction of the court. As governmental powers and duties have increased, and as public interest has gained prominence at the expense of private right, the problem on locus standi has become a fundemental one that has given rise to much debate and controversy in England as well as in other modem administrative states. The law about locus standi in English administrative law seemed to be a murky depths. The case law on standing displays considerable diversity not only within each particular remedy but also between them. Even when the same words such as 'prive right", "special damages", "person aggrieved" or "sufficient interest" are used, it cannot be assumed that they bear the same meaning. The main cause of this confusion resides in the high complexity of the system of remedies and a failure to adopt a clear view on what the remedies as a whole is trying to achieve. Now the system of remedies was reformed by the revised Supreme Court order(l977) and the Supreme Court Act(1981). Under these reforms the New test of standing was provided more flexibly and simply than that of before it. But Confusion is still remained. It is unclear what is the concrete meaning and precise ambit of new law of standing, especially whether new test is a uniform one for all the remedies. To understand these problems surrounding the present law of standing, it is necessary to see in a historical perspective how far the law has been changed and to make a reference to the first important decision by the House of Lords in that topic, the LRC. case. Therefore this paper is divided as follows : 一) Introduction 二) the Law on Locus Standi before 1978. 1) General 2) Injunction 3) Declaration 4) Certiorari and Prohibition 5) Mandamus 三) the Present Position (after 1978). 1) Introduction 2) I.R.C. case 四) Conclusion

「英國의 行政訴訟制度의 改革과 排他性의 問題」

白種仁 전북대학교 법학연구소 1990 法學硏究 Vol.17 No.-

Abstract The evolution of the modem Public administration to do the function of the welfare state led to the evolution of administrative law. And also English administrative law has been made great changes for the past 4-5 decades. Especially the change of the law of administrative remedy was dramatic. The law of remedies in English administrative law was until lecently highly complex with diverse procedure and disadvantages. This complexity of the system of remedies has been simplified by the reform made by the revise of the Rules of the Supreme Court Order 53(1977) and the enactment of the Supreme Court Act(1981). The basis of the reform is in the Concept of the Application for Judicial Review. And then, the new reformed procedure, the Application for Judicial Review, raised many discussions on whether it is exclusive or not. In other words, should this procedure be the only route for most of the public cases? On this matter an important case is the decision of the House of Lords in O'Reilly v. Macman. This paper aims to study the histotic process, background and the main context of the reform, and also the matter of the exclusivity of the new procedure in relation to that case.

前提와 補文

백종식 서울여자대학교 1981 서울여자대학논문집 Vol.- No.10

영어의 predicate complement system은 Rosenbaum(1967) 이후 수 많은 학자들이 연구를 거듭했다. 여기서는 범위를 극한시켜 presupposition을 토대로 영어의 predicate complement의 구조와 의미의 상관관계를 고찰하고 factive complement와 non-factive complement의 심층구조를 잠정적으로 설정하고자 한다. 여기서 말하는 presupposition은 의미론적 개념에 의한 것이 아니라 실용적 개념에 의하여 speaker와 listener간에 이루어지는 presupposition을 택했다. Rosenbaum은 다음과 같은 예문에서 표면구조의 유사성을 토대로 심층구조가 동일하다고 가정했다. (1) a. It is likely that it is raining. b. It is odd that it is raining. (2) a. I suppose that John is ill. b. I regret that John is ill. (3) a. He avoids getting caught. b. He stops beating his wife.

포도 수급에 관한 연구

백종희 안성산업대학교 1998 論文集 Vol.30 No.2

Estimating of the supply and demand for grape is extremely important to farming and businesses participating in these market. It helps them define their production planning, so they can meet demand expectation. The price elasticity of demand for grape is inelastic, and the income elasticity of demand gor grape is elastic.

GC 및 GC/MS에 의한 생체시료중 Methidation의 분석법에 관한 연구

이종숙,이재신,최동기,양희진,한백희,구기서 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-