미세조류와 방사선 세슘, 스트론튬, 우라늄의 반응 특성

이승엽,이지영,이재광,정광환,이승엽,정종태,김경수 한국방사성폐기물학회 2013 한국방사성폐기물학회 학술논문요약집 Vol.11 No.2

마아케팅管理者의 情報活用에 관한 模型設計

李承燁 啓明大學校 産業經營硏究所 1988 經營經濟 Vol.21 No.1

The objective of this article is to develop a conceptual framework for studying the utilization of research information in marketing management. This framework is based on a synthesis of theoritical or empirical literature from marketing, accounting, management information systems, innovation and social psychology. Such a framework can help provide an answering the fundamental question: "What factors lead to the use of marketing research information in marketing management?" To answer this question, it is necessary to define 1) what constitutes marketing research information and 2) why specific factors have been chosen as interesting enough to investigate. The author feels that the answer to these questions will provide a better understanding of the utilization of research information in marketing management. This article is organized into four sections. In the first section, research objective and methodology of this article is presented. Conceptual or empirical literature relevant to this study is reviewed in second section. In third section, a conceptual framework for studying the utilization of research information in marketing management, a rationale for this framework and research propositions are presented. In last section, brief summery of findings and limitationsof this article are provided.

企業의 마아케팅調査活動에 關한 硏究

李承燁 啓明大學校 産業經營硏究所 1986 經營經濟 Vol.19 No.1

The focus of this research is upon marketing research activities in marketing management. For the purpose of this study, marketing research activity is recognized as the process of gathering and analyzing the information to assist management in making marketing decisions. This research is devoted to determining what types of marketing information, and in what ways certain variables are associated with marketing manager's research activity. More specifically, the objectives of this research are to: 1) provide the analytical frameworks to guide the marketing research activity in marketing management, 2) delineate the present uses of marketing research in marketing management, 3) Construct a number of hypothesized relationships between the extent of marketing research and the certain variables set out in conceptual scheme. The initial objective of this research is to provide the analytical frameworks to guide the study of marketing activity in marketing management. In doing this, the researcher developed the conceptual scheme for the various types of marketing information to inform marketing manager about their consumer marketing information sources and the information gathering techniques. Findings from the observation of the marketing research activities in marketing management indicate that marketers, though the differences may exist between domestic industry and advanced nations industry, have not lost the enthusiasm for the marketing research activities evidenced by the theoreticians. The main objective of this research is to find out the important variables to facilitate or impede the extent of marketing research activities in marketing management. Careful analysis with hundreds of theoretical or empirical research articles have revealed that management activity in acquring and using marketing research is an amalgam of many influences. The major research result is related to three set of variables; organizational. situational, and individual. Marketing research activity with marketing management is subject to important organizational dynamics and constraints associated with performing and using research. The organizational environment may be devided into three categories. First, the monetary commitment of the organization toward marketing research foster or impede research activity. Second, the nature of the marketing manager's interaction with the marketing research group may affect his research activity. The evaluation of the product manager's use of research by his immediate superior is a third variable within organization. Beyond the organizational environment, however, there are situational aspects which shape the marketing manager's use of marketing research. First, a key aspectis the various stages of the product life cycle through which it progresses from conceptual development to decline. Second, marketing research activity may be associated with the competitive situation in consumer market for particular product. In considering the marketing manager as an individual, there is a third set of variables which may relate to marketing research activity. Within the manager's background, both his education and, even more likely, his experiential profile may have something to do with his research activity. Beyond this, the marketing manager's views about vairous aspects of marketing research and the organization may be correlated with research usage patterns.

초록집 ( 1993 . 4 . 15 ) : 1993 년도 신약개발 연구결과 / 미발표 결과 목차 ; 유전공학기법을 이용한 새로운 당뇨병 치료제의 개발 연구

이승엽,이추희,남두현 한국응용약물학회 1993 학술대회 Vol.1993 No.1

마이크로스트립-프로브 급전을 이용한 U형 슬롯 패치 안테나 설계

이승엽 여수대학교 1999 論文集 Vol.14 No.2

A microstrip-probe feed structure for patch antennas with electrically thick air substrate is presented. This new type of feed, microstrip line combined with probe, lies between the patch and the ground. Therefore, this feed has several advantages over a coaxial-probe feed. As confirmed by our experimental measurements, we improved the matching and the front to back ratio(F/B) characteristic over a wide bandwidth. An antenna bandwidth as large as 3 times that of a conventional rectangular microstrip antenna has also been obtained. Details of the proposed design and experimental results are presented.

신도시주의에 의해 개발된 도시의 공간구조 특성 분석에 관한 연구

이승엽 慶州大學校 2005 論文集 Vol.18 No.2

This study focuses on analyzing the characteristics of spatial structure of the new urbanism city by using analysis frame spatial structure, land use, street system and residential structure. In order to analyze spacial structure, we surveyed the relation of urban center, urban core and axis; in land use item, we surveyed the current land use and its rate; in street system which forms the basic frame of city, we surveyed the traffic line of vehicles and pedestrians in residential structure, we surveyed the relations of street system and residential tissue and the way of subdivision and detailed approach to each house. As a result, this study shows that the spacial structure by new urbanism has definite border between center and edge; the three dimensional design control of city appearance through the transect is enforced; high density and mixed uses are encouraged in center; by designing the city transit-oriented system and considering street system emphasizing the centralization, the city could be more livable to its dwellers.

시간 영역에서 결합마이크로스트립 선로의 펄스전송 특성 해석 및 실험

이승엽 여수대학교 2002 論文集 Vol.17 No.-

As circuit dimension of M(M)IC's is smaller due to recent advances in microelectronic technology and clock rates increase, inter line spacing is decresing. Therefore an accurate time domain analysis of pulse propagation in various coupled microstrpline used in M(M)IC's is required. It is required that distortion of coupled microstripline including feeding line(unified coupled line) is needed. In this paper, It is obtained the requirement that the proper strip spacing to consider the effects of even/odd-mode distortion should be chosen. the distortion of coupled microstripline including feeding line(unified coupled line) is needed. In this paper, It is obtained the requirement that the proper strip spacing to consider the effects of even/odd-mode distortion should be chosen. The distortion of a picosecond electrical pulse caused by dispersion and crosstalk as it propagates along coupled pair of microstrip is investigated and measured.

Full-wave방법을 이용한 CPW 해석

이승엽 여수대학교 2002 論文集 Vol.17 No.-

Analysis of CPW(Coplanar Waveguide) is presented using Full-wave method in the spectral domain. The characteristics of the CPW are numerically calculated by Galerkin's method and compared with ones of microstrip lines. It is shown that the variation of effective dieletric constant versus frequency in CPW line is less dependent than that in microstrip line. It means CPW is more attractive feeder line of antenna in ultra wide band than microstrip line.

PASS (polyamic acid alkylamine salts) LB막의 이미드화 과정에 대한 연구

김태완,이승엽 弘益大學校 科學技術硏究所 1995 科學技術硏究論文集 Vol.6 No.-

We have aimed at the imidization condition of the polyamic acid alkylamine salts(PAAS) LB films to make the well-known polyimide LB films. The PAAS molecule, which is composed of pyromellitic dianhydride(PMDA) and oxydianiline(ODA), is a precursor of the polymide. To obtain the optimum conditions of film deposition, the π-A isotherms were examined by varying temperature, barrier moving speed, dipping speed, spreading amount of solution, and etc. The Z-type LB films were made at the surface pressure of 5mN/m and 25mN/m for the AFM study: the former surface pressure forms the gas phase and the latter one forms the solid phase. Surface morphology of the LB films made at the solid phase(2Å Surface roughness) is more smooth than that of the LB films made at the gas phase(70Å Surface roughness). The imidization was performed by thermal treatment for 1 hour at 300℃. This condition was judged by TGA and DSC analysis. Current-voltage characteristics were measured along the perpendicular direction of the LB films at room temperature. Ohmic conduction has been observed below ∼10?V/cm and the calculated electrical conductivity is about 10-13S/cm. Nonohmic conduction has been observed above ∼10?V/cm and the conduction mechanism is able to be explained by the Schottky effect.

유향-가중 그래프 이론의 상수도관망에 적용

이승엽,정동휘,Lee, Seung-Yeop,Jeong, Dong-Hwi 한국수자원학회 2018 물과 미래(한국수자원학회지) Vol.51 No.6