• Title/Summary/Keyword: direction turning

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Characterization of carrier transport and trapping in semiconductor films during plasma processing

  • Nunomura, Shota;Sakata, Isao;Matsubara, Koji
    • Proceedings of the Korean Vacuum Society Conference
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    • 2016.02a
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    • pp.391-391
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    • 2016
  • The carrier transport is a key factor that determines the device performances of semiconductor devices such as solar cells and transistors [1]. Particularly, devices composed of in amorphous semiconductors, the transport is often restricted by carrier trapping, associated with various defects. So far, the trapping has been studied for as-grown films at room temperature; however it has not been studied during growth under plasma processing. Here, we demonstrate the detection of trapped carriers in hydrogenated amorphous silicon (a-Si:H) films during plasma processing, and discuss the carrier trapping and defect kinetics. Using an optically pump-probe technique, we detected the trapped carriers (electrons) in an a-Si:H films during growth by a hydrogen diluted silane discharge [2]. A device-grade intrinsic a-Si:H film growing on a glass substrate was illuminated with pump and probe light. The pump induced the photocurrent, whereas the pulsed probe induced an increment in the photocurrent. The photocurrent and its increment were separately measured using a lock-in technique. Because the increment in the photocurrent originates from emission of trapped carriers, and therefore the trapped carrier density was determined from this increment under the assumption of carrier generation and recombination dynamics [2]. We found that the trapped carrier density in device grade intrinsic a-Si:H was the order of 1e17 to 1e18 cm-3. It was highly dependent on the growth conditions, particularly on the growth temperature. At 473K, the trapped carrier density was minimized. Interestingly, the detected trapped carriers were homogeneously distributed in the direction of film growth, and they were decreased once the film growth was terminated by turning off the discharge.

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A Study on the Vocational Ethics of Security and Secretary Service (전문경호비서의 직업윤리에 관한 연구)

  • Park, Ok-cheol
    • Journal of the Society of Disaster Information
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    • v.3 no.2
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    • pp.55-78
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    • 2007
  • Currently, the departments related to security and secretary service exist in 18 universities and 30 colleges in Korea in order to raise professional security and secretary personnel. Among the 18 four-year colleges in Korea, only two of them have the ethics course include in their curriculum. Also, among the 31 two-year colleges, only three of them have the ethics course included in their curriculum. Besides, as some private security and guardian companies were recently utilized in illegal actions of the rich and ruling class, contradicting their original purpose of existence, many people point out their downfall as a ?forced private army.? As a professional job, if security secretaries take advantage of the knowledge and top-secret technologies and use them for non-ethical purposes, the effect of the damage is far more serious than other fields of jobs. Therefore, taking this event as a turning point, the contract contents and the task area between the client and the security and secretary company must become more transparent in order to prevent illegal actions, and also for the people working in the security and secretary service area, it is necessary to establish a firm ethical consciousness in order to behave appropriately in their working environment. Therefore, this study examines the proper direction of work ethics of the people working in the security and secretary service according to the professionalization of their field, and also aims to propose an appropriate work ethic system such that they will not become an unfortunate victim of various scandals anymore. To do so, the concept of work ethics in professional jobs was examined; and after the code of ethics that reflect the ethical value system of each professional job was reviewed, the study suggested a specific solution for establishing the codes of ethics for security and secretary service.

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A Study on the Interior Design Management Strategy for Design Compectitiveness in Environmental Changes (환경변화에 있어 디자인경쟁력을 위한 실내디자인경영전략에 관한 연구)

  • Chang, Haeng-Soo
    • Science of Emotion and Sensibility
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    • v.11 no.2
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    • pp.245-256
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    • 2008
  • Today, interior design industry is continuously developing in domestic and foreign, and the industry is getting more internationalized and professionalized day after day. At the same time, the interior design industry is overwhelmed by sudden changes. However, the sudden change can be regarded as a turning point requiring management paradigm shift and an understanding of fundamental concept of interior design industry management. In other word, it is the point where a design management strategy should begin. The previous management strategies are no longer effective. Only the companies providing impressive and practical designs followed from qualified market research and analysis can survive in the society. This research examined the tasks the interior design industry confronted and the factors of environmental changes, and analyzed the current status and trend of changing environments. The purpose of the research is to propose a direction to the effective management available in highly industrial national society.

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A Phenomenological Perspective and Meaning of joint-pain's Experience of Women's in an island (관절통을 경험한 도서지역 여성의 체험연구)

  • Kim, Gan-Woo
    • Journal of muscle and joint health
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    • v.5 no.2
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    • pp.265-285
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    • 1998
  • This Qualitative nursing research was made with a hermeneutic phenomenological approach to find out the meaning and nature of human's experience. The purpose of the inquiry is to find out the meaning and to understand the nature of Joint pain's experience of women in the island and to apply the result to nursing practice. The study was guided by Shin Kyung Rim's four step that revised van Manen's method for doing research. The method of inquiry included : turning to interesting phenomenon. inquiring and investigating experience as it was lived rather than as conceptualized ; reflecting and analyzing essential themes which characterize phenomenon ; and describing phenomenon through art and literature. Multiple strategies for data collecting were needed : deep face to face interview ; analysis of joint pain of women's writings ; describing and analysis of examples of the phenomenon in art, literature. Through this process essensial them of the experience was emerged : Misery that I would like to cut off my body, Sea wind soaking deeply into the bones, Dull pain from the postpartum cold wind, The another suffer I should endure by myself, Recrudesce despite all the try I have made, Often forgetting the pain of every Joint for hardship of life. Findings from artistic and creative inquiry further was validated and meaning was discovered. The study illuminated meaning and simultaneously validated the phenomenological research process. Essential themes for understanding women joint pain's experience, implications, for education, research and practice, direction and need for continuing inquiry were identified.

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FUN Fashion Design in the Emotional Consumption Era (감성소비시대의 펀(Fun) 패션디자인)

  • Im, Hyo-Bin;Ko, Hyun-Zin
    • Journal of the Korean Society of Costume
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    • v.61 no.5
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    • pp.93-105
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    • 2011
  • This research is aimed at examining the characteristics of the fun fashion design in the emotional consumption era from a broad perspective, and it is meaningful in the sense that it presents the ideal direction for the development of fashion products that can satisfy the changing desires of the consumers today and tomorrow. For this, the documentary study and practical case study have been executed. This paper examined the two aspects of the fun definition when it comes to the characteristics of the fun fashion design that are manifested in the emotional consumption era. First, fun fashion design that is presented by designers from the consumers' position manifests in the form of deviation from the every day life rules, use of the child-like expression mediums and unexpected turning, fun fashion design when it pertains to the deviation from the every day life rules is expressed freely, adopts object and forms it, and mixes in the alien elements, fun fashion design when it pertains to the use of child-like expression element is manifested in the form of child-like expression, child-like expression of the form, child-like drawing, introduction of the child-like object, character and graffiti. Moreover, fun fashion design of the unexpected turn is expressed with illusion and storytelling. Next, fun fashion design from the participants' position is a design created by the active participation of the consumers. As the producers who participate actively in the product design process, design is modified by the design of participation and users so that the users can enjoy it. Likewise, it is manifested in the form of design of participation.

Establishment Construction Enterprise Resource Planning(ERP) & Construction Information Sttategy (건설정보화 전략과 ERP구축)

  • Lee Min-Nam;Oh Dong-Hwan
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.164-170
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    • 2003
  • This paper is to evaluate the informational direction, current situations and ERP establishment concerning constructing industry, to present the right directions, implemented cases for implementing constructional ERP, also to suggest the effect, influence, problems and shootings in constructional ERP arena. The constructing industries in korea are facing great turning point because of the huge corruptions currently happened and forcing to open the market in 1997. Attempting to establish Computer Integrated construction system (ERP) by breaking down constructing cost, improving quality, operating rapid and effective construction to enhance productivity, it is hard to achieve the goal with only inter-contractor's establishment. Constructing industries are integrated ones, consisted of many organizations for instance ordering agencies, contractors, subcontractors, material vendors, etc. and use various information formats such as texts, graphics, drawings. I dare suggest that implementation of constructional CALS including EDI/EC, GIS is tile only solution to control the information systematically generated in whole stages from planing, designing, constructing through maintenance, and to supply or switch the information.

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Comparative Study on Colors Between Korean Traditional Color and Digital Transfer Textile Printing -Focusing on The Red-Series of Korean Traditional Standard colors- (한국 전통색채와 디지털 전사 날염 색채 비교연구 -한국전통표준색명의 적색계를 중심으로-)

  • Park, Suhrin;Kim, Jongjun
    • Journal of Fashion Business
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    • v.20 no.1
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    • pp.98-114
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    • 2016
  • This research study was performed to compare between Korean traditional color and digital transfer textile printing. This would help to find the new direction to apply Korean traditional colors to modern textile industry. The objective of this study is to digitalize Korean traditional colors to be applied to modern textiles, based on research studies by previous researchers, on the actualization of Korean traditional colors for textiles. The study focused on 21 red colors among others. Digital color palette of graphic program was printed on 6 different polyester textiles by using digital transfer textile printing. Different things to be supplemented were found by comparing the results with the colors of Korean traditional standard color names. After measuring the colors, Munsell color system and CIE $L^*a^*b^*$ value were measured then comparative study was performed on the measured values using 3D graphs. Measured colors of Munsell varied by color but in overall, chroma became low while brightness became high. Color characteristic of warm colors got weakened by turning into cold colors as brightness got high but yellow and red got low due to the characteristics of CIE $L^*a^*b^*$ value. This study has limitations with color analysis of digital transfer textile printing due to standardization of textiles and standardization of traditional colors however it can support to actualize the colors for the design using traditional color names by visualizing the color change of digital transfer textile printing in the future.

The Comparative Study on Characteristics of the Kitchen Design of 20 century's Korea and Europe - Centered on Park Gil-Yong's improved kitchen and German Frankfurt kitchen - (20세기 초 한국과 유럽의 부엌 계획특성에 관한 비교연구 - 박길용의 개량부엌과 독일 프랑크푸르트 부엌을 중심으로 -)

  • Jung, Chan-Mi;Kim, Hyun-Jung
    • Korean Institute of Interior Design Journal
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    • v.18 no.2
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    • pp.50-60
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    • 2009
  • The change of idea about overall politics, society, technology, and culture in 20th century led to the change of kitchen which is the central space of household affairs as well. Frankfurt kitchen of Margarete Schuette Lihotzky which was introduced for the first time at Germany International Trade Exhibition in 1927 functionally designed small space of $6.5m^2$ with considering move-line and convenience. This is the beginning of kitchen type which has built-in sink and cupboard that is regarded as an universal option these days, and this has extensively been applied to kitchen system throughout the world after the repetitive development in America, Sweden and Switzerland. And improved kitchen of Park Gil-Yong which was influenced by rationalism introduced from the house improvement campaign and the opening of a port which were progressed in Korea in $1919{\sim}1930$ is the first stand-up kitchen which improved the inefficiency of Korean conventional kitchen. The purpose of this study is to understand the change aspect of kitchen through the rationalization in each country by comparing the introduction background of the times, change of space for residence and kitchen, and the characteristics of kitchen plan which had influence at the turning point on the kitchen in Korea, Europe on the side of efficiency at the same period, take into consideration of our residing-culture which has rapidly been changed between tradition and modernity, and to see the direction of kitchen design which copes with the unique residential environment.

A development of Automotive recognition streetlight lighting control with sound recognition technology (음향인식기술을 활용한 자동차 인식 조명제어 가로등 개발)

  • Choi, Won-Chul;Woo, Choong-Chae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.3
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    • pp.2135-2140
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    • 2015
  • In this paper, proposed a new lighting control system which can reduce power consumption compared to conventional street lamps and intelligently control the light efficiently depending on whether there is a vehicle on the street. The new lighting control system proposed by this paper detects the presence of cars by collecting and analyzing sounds generated by the movement of cars. Then, the system controls lighting of street lamps based on the above car detection information, and turns on the street lamps sequentially by transmitting the car detection information. Experimental results showed that lightings were controlled based on the presence of cars and that operations of the lamps were made by turning on the lights sequentially by determining the moving direction of cars. This system is considered a technology that can reduce energies by applying to local roads with a few cars moving or national highways where lights are always turned on with low energy efficiency.

Ship's Maneuverability & Required Number of Tug Boat in Strong Winds for the T.S. HANBADA (실습선 한바다호의 강풍시 항내 어프로칭 조선 및 예인선 사용 기준에 관한 연구)

  • Jung, Chang-Hyun;Kong, Gil-Young;Lee, Yun-Sok
    • Journal of Navigation and Port Research
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    • v.32 no.8
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    • pp.597-602
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    • 2008
  • T.S. HANBADA has a relatively large hull and superstructures above the water line, so she has much of leeway or turning of bow with the effect of winds. Especially on berthing, unberthing and/or sailing on low speed, these effects take place more significant. Therefore, it was carried out the numerical calculation of the wind force and moments acting on the T.S. HANBADA, and then calculated the leeway angle and counter rudder angle with the relative wind direction and velocity. Also, it was suggested the maximum wind velocity which could be berthed or unberthed used by bow thruster and the tugboat operations in strong winds. These results will be great helpful to the vessels with large superstructures on ship's handling in harbour or tugboat operations.