• Title/Summary/Keyword: Computer Studies

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Cows per Man-Hour(CMPH) based on Time and Motion Studies for various Milking Systems (착유시설 형태에 따른 착유 노동생산성에 관한 연구)

  • 정태영;김형화;김동일;이정호;이홍표;김종민;이연섭
    • Journal of Animal Environmental Science
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    • v.3 no.2
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    • pp.87-95
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    • 1997
  • This study was peformed to compare work routine time and performance of milking systems by measuring motion and time in milking procedure. Data were collected from thirteen dairy farms among which milking was done by bucket in two farms, by pipelines in three, by tandem parlors in four including one remodeled side-opening, by herringborn parlors in three and by a parallel milking parlor. Recording time and motion for milking parlor. Recording time and motion for milking procedure was performed by stopwatch and notebook computer. Work routine elements were recorded and calculated into cows milked per-man-hour(CMPH). The results are as follows : Average milking time per cow(MTPC) in bucket and pipeline milking systems usually installed in cow stall were 442.7 and 395.8 seconds, respectively. And average CMPH of bucket and pipeline milking system were 144.5, 303.3, 272.5 and 380.3 seconds, respectively. And CMPH of tandem, herringbone, parallel and modified side-opening systems were 24.9, 11.9, 13.2 and 9.5 heads, respectively. CMPH was the highest in the tandem milking system and the lowest in the bucket milking facilities. CMPH, when milked in a parlor resulted in high value compared with bucket or pipeline milking systems installed in cow stable. They showed considerably low CMPH compared with the results of other countries. The reason why so low CMPH could be derived from type and mechanization of facilities and equipment, operator's ability, number of operator, idle time and milking procedure.

Java Extension for supporting Automatic Transformation between Values of Primitive Types and Objects of Wrapper Classes (원시 타입의 값과 래퍼 클래스의 객체간 자동차 변환를 지원하기 위한 Java의 확장)

  • Kim, Sung-Ki;Kim, Sang-Chul;Jeong, Byeong-Soo
    • Journal of KIISE:Software and Applications
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    • v.28 no.10
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    • pp.785-794
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    • 2001
  • Since there is no compatability between primitive types and class types in Java, values of primitive types cannot be assigned to variables of class types cannot be assigned to variables of primitive types. Primitive values must be converted to objects of wrapper classes and special methods must be called in order to extract the primitive values from those objects. In this paper we propose there methods which provide automatic transformation between primitive types and class types for their compatability. Those methods support compatability not only between primitive types but also between wapper classes. The first method utilizes the hierarchy of wrapper classes, the second utilizer java.lang.Number class, and the third utilizes the hierarchy of wrapper interfaces. Through comparison and performance measurement. we confirm that the third method works better than the others.

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제 7차 교육과정 개정을 위한 가정계 고등학교 교육과정 체제 및 구조 개선 연구

  • 김경애;윤인경;장명희
    • Journal of Korean Home Economics Education Association
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    • v.8 no.2
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    • pp.65-79
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    • 1996
  • This study proposes a model curriculum for Vocational Home Economics High School in the 7th Curriculum Revision. The model in the study is first drawn from the assumptions that reflect ever changing demands of industrial society for Home Economics education. Another perspective employed in the study is historical analysis that focuses on the evolution of the Vocational Home Economics Curricula from the 1st through the 6th revision. This study also employes comparative research tools for the national level comparison such as USA, Japan, Taiwan, and Korea. The proposed model curriculum in this study is concluded from those step-by-step studies as follows:1) Problem definition and design in current curriculum for Vocational Home Economics high school; 2) Needs and roles analysis of Vocational Home Economics high school for the future; and 3)Historical analysis of our curriculum revisions in the past and coparative analysis with other countries. Authors conducted this research project for 3 month period from June 15, 1996 to September 15, 1996. During this period, authors collected the data and information through those method as an extensive literature review, survey and interview, and curriculum specialist conference. The key and critical features of the proposed curriculum in the study are as follows:1) In the numbers of department, a proposed model curriculum offers 8 as opposed to 6 in the 6th revision, reflecting two additional departments of “Elderly Welfare”and “Cosmotology”. 2) In the statement of educational objectives, a model curriculum emphasizes a more concrete statement to each specific skills according to the changing societal needs. 3) In the numbers of total subject matters, there would be 40 in the new as opposed to 23 in the current curriculum. Among these changes, 17 would occurr in the newly introduced subject matters, while 11 would simply change the subject matter name. Among 40 subject matter, “Introduction to Computer” and “Home Economics in Vocational Education”would be required subject matter. 4) In the total numbers of required unit for graduation in three years, a model offers 86∼132 unit. A maximum unit for each subject matter would be 12.

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Studies on the Effect of the Phosphorylated IgE-Dependent Histamine-Releasing Factor on Na,K-ATPase Activity in HeLa Cell (HeLa세포에서 IgE-dependent Histamine-releasing Factor의 인산화가 Na,K-ATPase의 활성에 미치는 영향)

  • Kim Jung-A;Ha Hunjoo;Lee Kyunglim
    • Microbiology and Biotechnology Letters
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    • v.33 no.3
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    • pp.184-188
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    • 2005
  • IgE-dependent histamine-releasing factor (HRF) is found extracellularly to regulate the degranulation process of histamine in mast cells and basophils and known to play a predominant role in the pathogenesis of chronic allergic disease. HRF has been also identified in the intracellular region of the cell. Previously, we reported that HRF interacts with the 3rd cytoplasmic domain of the alpha subunit of Na,K ATPase and inhibits Na,K-ATPase activity. The predicated phosphorylation site in HRF by PKC was mapped to one serine residues (S98) by the computer analysis. In this study, we identified that S98 residue of HRF was phosphorylated using anti-HRFpS98 antibody which specifically recognizes the phosphorylated serine residue of HRF and HRFS98A mutant construct. We also performed $^{86}Rb^{+}-uptake$ assay to understand the role of HRF wild-type and HRFS98A mutants on the regulation of Na,K-ATPase activity. Dephosphorylation of HRF at serine 98 residue recovers slightly the inhibitory function of HRF, suggesting that phosphorylated HRF at serine 98 may not suppress the Na,K-hfpase activity.

Estimation of vitamin K intake in Koreans and determination of the primary vitamin K-containing food sources based on the fifth Korean National Health and Nutrition Examination Survey (2010-2011)

  • Kim, Eun-Soo;Kim, Mi-Sung;Na, Woo-Ri;Sohn, Cheong-Min
    • Nutrition Research and Practice
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    • v.7 no.6
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    • pp.503-509
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    • 2013
  • There is little information on dietary vitamin K intake and nutritional status of daily requirements of vitamin K in Korea. The objective of this study was to investigate the vitamin K intake and major food sources of Vitamin K in Koreans. The survey data from the 2010-2011 Korean National Health and Nutrition Examination Survey of 7,792 subjects (aged 19-64 years) were examined. Total vitamin K intake was calculated from 24-hour dietary recall using a vitamin K food database, Computer Aided Nutritional analysis Program and the United States Department of Agriculture database. The geometric mean of vitamin K was estimated as $322.40{\pm}6.33ug/day$ for men and $271.20{\pm}4.92ug/day$ for women. Daily vitamin K intake increased significantly with age (p for trend < 0.001). The main food source of vitamin K was vegetables (72.84%), including cabbage kimchi (19.26%), spinach (17.38%), sesame leaves (7.11%), radish leaves (6.65%), spring onions (6.28%), and laver (4.82%), followed by seaweed, seasonings, and fat and oils. We observed that the vitamin K intake of Koreans was relatively higher than that reported by other studies in Western countries and differed depending on age.

Numerical Investigation of the Lateral Jet Effect on the Aerodynamic Characteristics of the Missile: Part II. Freestream-Jet Angle Effect (측 추력 제트가 미사일의 공력특성에 미치는 영향에 관한 연구 : Part II. 자유류-제트 각 영향)

  • Min, Byung-Young;Lee, Jae-Woo;Byun, Yung-Hwan;Hyun, Jae-Soo;Kim, Sang-Ho
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.32 no.9
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    • pp.27-34
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    • 2004
  • A computational study on the supersonic flow around the lateral jet controlled missile has been performed. For this purpose a three dimensional Navier-Stokes computer code(AADL3D) has been developed and case studies have been performed by comparing the normal force coefficient and the moment coefficient of a missile body for several parameters such as angles of attack, circumferential jet positions, and spouting jet angles. Missile surface is divided into four regions with respect to the center of gravity, and the normal force and moment distribution at each region are compared. The results show different behavior of the normal force and moment variation according to each parameter. Furthermore, it is shown that the pitching moment can be minimized through proper combination of each parameter.

ECONOMIC AND SOCIOLOGICAL ISSUES OF THE TRANSITION TO COMPUTER BASED ENGINEERING EDUCATION

  • Bordia Surek
    • Journal of Engineering Education Research
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    • v.5 no.1
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    • pp.68-76
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    • 2002
  • It is proposed to raise the debate on Engineering and Technical Education at the global economic level and to examine some of the issues facing developing and poorer countries in managing and improving the quality of engineering education in their countries, especially in the context of internet and IT culture After the fall of the Berlin Wall, the world is now divided in two realigned blocks: one of developed(rich or advanced) countries which have a social security safety net for their population and another of developing(or poor) countries which have no such luxuries for their population. For the general public in the developing countries, any engineering or technical degree/diploma is a passport to lifelong wellbeing of an individual and his/her extended family. Therefore, the demand for such qualifications is very high and it is almost a rat race amongst school leavers to get into engineering/technical colleges. In view of this booming demand, there are hundreds of privately funded engineering/technical colleges in countries like Philippines, India, Thailand, etc., besides state funded ones. It is extremely difficult to ensure good quality in this mushrooming scenario. There are also many very small poorly resourced developing countries where there is only one engineering school and/or two-three technical colleges. Products of these schools/colleges work only in their own country and education globalization have little or no meaning for them. Besides highlighting the aforementioned general issues, the Paper also presents a few case studies on problems of accreditation and quality assessment in larger developing countries like India and the Philippines. The Paper also discusses the effects of commercialization on the quality of education and social impacts of IT revolution on educational processes.

A Novel Method for Modeling Emotional Dimensions using Expansion of Russell's Model (러셀 모델의 확장을 통한 감정차원 모델링 방법 연구)

  • Han, Eui-Hwan;Cha, Hyung-Tai
    • Science of Emotion and Sensibility
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    • v.20 no.1
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    • pp.75-82
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    • 2017
  • We propose a novel method for modeling emotional dimensions using expansion of Russell's (1980) emotional dimensions (Circumplex Model). The Circumplex Model represents emotional words in two axes (Arousal, Valence). However, other researchers have insisted that location of word in Russell's model which is expressed by single point could not represent exact position. Consequently, it is difficult to apply this model in engineering fields (such as Science of Emotion & Sensibility, Human-Computer-Interaction, Ergonomics, etc.). Therefore, we propose a new modeling method which expresses emotional word not as a single point but as a region. We conducted survey to obtain actual data and derived equations using ellipse formula to represent emotional region. Furthermore, we applied ANEW and IAPS which are commonly used in many studies to our emotional model using pattern recognition algorithm. Using our method, we could solve problems with Russell's model and our model is easily applicable to the field of engineering.

A Study on Some Examples of Special Effect in Digital Image (디지털 영상 표현에 있어 특수효과 사례에 관한 연구)

  • 이은화;이규옥
    • Archives of design research
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    • v.12 no.1
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    • pp.51-60
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    • 1999
  • Since the appearance of moving images, the expansion of mass media such as 1V or VCR has made the pace and range of spreading information to people faster and widely popular. Recendy, the development of digital image technique has resulted in solving the problem -great defect- of the display quality of analogue system; special effects by means of computer graphics have risen to a higher quality level; showed the new direction of digital image; and popular wi1h people all c:Ner the world. This paper reestablishes the notion of image up to now, and analyses the technical differences between analogue system and digital system on the basis of the SpecifIC property and skill of digital image editing; it also studies the special effects which can be applied to the image editing software. Moreover, in researdting 1V advertising, the special effects by digital system in use in 1his country today complies with the statistics in their own field. The special effects in 1V advertising is performed at a higher standard by a professional production. Accordingly, with the help of technology of digital moving image, the special effects are expected to continue developing into a level of high quality

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Color Images Utilizing the Properties Emotional Quantification Algorithm (이미지 색채 속성을 활용한 감성 정량화 알고리즘)

  • Lee, Yean-Ran
    • The Journal of the Korea Contents Association
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    • v.15 no.11
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    • pp.1-9
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    • 2015
  • Emotion recognition and regular controls are concentrated interest in computer studies to emotional changes. Thus, the quantified by objective assessment methods are essential for application of color sensibility computing situations. In this paper, it is applied to a digital color image emotion emotional computing calculations numbered recognized as one representation. Emotional computing research approach consists of a color attribute to the image recognition focused sensibility and emotional attributes of color is the color, brightness and saturation separated by. Computes the sensitivity weighted according to the score and the percentage increase or decrease in the sensitivity property tone applied to emotional expression. Sensitivity calculation is free-degree (X), and calculates the tension (Y-axis). And free-level (X-axis) coordinate of emotion, which is located the intersection of the tension (Y-axis) as a sensitivity point. The emotional effect of the Russell coordinates are utilizing the core (Core Affect). Tue numbers represent the size and sensitivity in the emotional relationship between emotional point location and quantified by computing the color sensibility.