• Title/Summary/Keyword: world of difference

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Analysis Result for the Technical Development Reducing Standby Power in Domestic Major Electric Appliances : The Electricity Energy Saving Effect (국내 주요 가전제품의 대기전력저감기술 성과 분석 : 에너지절약 효과를 중심으로)

  • Lee, Eun-Young;Joung, Soon-Hee
    • Journal of Families and Better Life
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    • v.27 no.4
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    • pp.141-160
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    • 2009
  • Recently, some policies for reducing standby power, which has quite an effect on electricity consumption, have been employed all over the world. This study surveys the present condition of standby power for major electric home appliances during three years and analyzes the result of technical development reducing standby power. It presents how the industry paid attention to applying the technique of reducing standby power to electric appliances and how it affects the product's energy efficiency. We survey the standby power's change for six items, which were selected from the major electric appliances available on the market. It analyzes the difference of standby power consumption between appliances with a standby power reducing technique and those without during the latest three years. The amount of the average standby power is also compared. The comparison data confirms that the industry's effort and application of reducing standby power contribution has contributed to increasing an appliance's energy efficiency. This study restricted the analyzed items to six appliances, which has been a low volunteered involvement in the standby power reducing program. It is important for reducing standby power consumption of appliances because it contributes to saving electric energy at home and abroad. The development of the standby power reducing technique is needed for more appliances. Along with the development of the standby power reducing technique in the industrial field, it also necessary for consumers to enlarge their understanding of standby power reduction for economic, social, and environmental values.

A Study on the Pop Music and Fashion (팝 음악과 패션에 관한 연구)

  • 김미정;이상례
    • Journal of the Korean Society of Costume
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    • v.53 no.2
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    • pp.101-118
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    • 2003
  • This paper describes pop stars' fashion style by the changes of pop music from the 1950's of the formative Period of a rock-n-roll to the 1990's. The author could examine the features of pop music as follows : the 1950's rock-n-roll, the 1960's rock and Psychedelic rock. the 1970's punk rock, the 1980's new wave and the 1990's reggae·hip-hop. Based on the examination, the author could do sampling of the fashion style, on which current pop music had influence, by rock style, new wave style, and reggae hip-hop style. The rock style makes appearance again as a new style when it is recently accepted to be a fashion. The 1960's hippie, which contains long-cherished desire of antiwar and peace after September 11, 2001 Attack on America and the Afghan War. reappeared as luxurious hippie, and the hybrid punk has been made because barriers between cultures have been collapsed to mix items and combine contradicting components at fashion field. The new wave style destroys sex difference of clothes. and men's clothes style has introduced women's dress style, so that androgynous style, which has handsome boy image with womanlike hair style and makeup, and the lingerie style without distinction of underwear and outer garment has made appearance through new cloth wearing ways and overexposure. The reggae and hip-hop style makes appearance to overcome social strata, groups, ages, regions and gender, etc and become one of the 21s1 century culture codes. In conclusion, pop music have played very important roles until expansion and popularity of new fashion style, and has been quickly expanded by mass media development. When the pop music fashion styles are introduced to high fashion, fashion styles have become more polished and high-qualify to expand them at main fashion world again.

A Study on the Analysis of U.S.A Navy and R.O.K Military C4I System and Future Development (미해군과 한국군 C4I 체계 분석 및 발전 방향에 관한 연구)

  • Cha, Hyun-Jong;Yang, Ho-Kyung;Jo, Yong-Gun;Ryou, Hwang-Bin
    • Convergence Security Journal
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    • v.11 no.6
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    • pp.59-66
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    • 2011
  • The representative concept of the future war is NCW. The main point of NCW is that it is connected by networ ks and gathers the battlefield status in real time, managing and controlling it. This is most needed in the navy. Operations of the navy are carried out in wide areas, individually or together. During this process, sharing information between each warship should be essential. Furthermore in the case of the American navy, they see the entire world as the operation area so it is a representative example of NCW. The C4I system of the Korean army is separated a ccording to the difference of each army's tactics and weapon system, being developed and managed differently. The refore there is a problem of interoperability lacking in each system. This paper analyzes the developed C4I system of the American navy to analyze the problems of C4I system of the Korean army, and propose the future direction of its development.

Design and Implementation of Frontal-View Algorithm for Smartphone Gyroscopes (스마트폰 자이로센서를 이용한 Frontal-View 변환 알고리즘 설계 및 구현)

  • Cho, Dae-Kyun;Park, Seok-Cheon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.12 no.6
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    • pp.199-206
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    • 2012
  • Attempt to use as a marker of natural objects directly in the real world, but there is a way to use the accelerometer of the smartphone, to convert the Frontal-View virtual, because it asks only the pitch of the camera, from the side there is a drawback that can not be converted to images. The proposed algorithm, to obtain the rotation matrix of axis 3 pitch, roll, yaw, we set the reference point of the yaw of the target image. Then, to compensate for the rotation matrix to determine Myon'inji any floor, wall, the ceiling of the target image. Finally, to obtain the homography matrix for obtaining the Frontal-View to account for the difference between the gyro sensor coordinate system and image coordinate system, so we can get the Frontal-View from the captured images through the projection transformation was designed. Was tested to convert Frontal-View the picture was taken in an environment smartphone environment surrounding floor, walls and ceiling in order to evaluate the conversion program Frontal-View has been implemented, in this paper, design and The conversion algorithm implementation, it was confirmed that to convert a regular basis Frontal-View footage taken from multiple angles.

Prevalence of canine scabies in the Korean stray dogs (국내 유기견의 개 옴 감염 상황)

  • Yoon, Soon-Seek;Byun, Jae-Won;Yang, Dong-Kun;Shin, Yeun-Kyung;Wee, Sung-Hwan;Kim, Byounghan
    • Korean Journal of Veterinary Research
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    • v.50 no.3
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    • pp.165-169
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    • 2010
  • Recently, the number of stray dogs is proportionate to the increase of the number of the companion dogs. Sarcoptic scabiei var canis, causing scabies, is one of the most important canine zoonotic arthropods in Korea and around the world. Thus, we have tried to know the prevalence of canine scabies in the stray dogs in Korea. A total of 565 stray dogs were collected from the rescue centers all over the country from Jan. 2006 to Dec. 2006. They were grouped with euthanasia or natural death and examined for the gender and age estimated by dental formula. To identify the lesions, the whole body was grossly examined and tested pathologically. Thirty two (5.66%) of 565 dogs were diagnosed as canine scabies. Dogs from urban areas had fewer scabies (0.62%) than those of rural areas (12.5%). Prevalence of scabies in male and female dogs was no difference as 5.96% and 5.25%. Euthanasia group showed higher prevalence (6.48%) than natural death group (2.44%) in scabies. Old dogs over five years showed lower infestration (1.82%) in scabies. In histopathological findings, there were mites in the burrows formed in the subcorneal space. Acanthosis, hyperkeratosis with crust, and vascular dilatation were main findings. One hundred thirteen (20%) of 565 stray dogs were diagnosed to have skin disease. Among them, canine scabies is the most prominent ectoparasite as 5.66 %. With previous reports on human infection in Korea, canine scabies must be regarded as the important zoonotic canine skin disease. Accordingly, for the human and canine hygiene it is imperative that stray dogs with skin problems are segregated and tested for the parasites to treat properly as soon as arriving at rescue shelter.

The Effects of Programming Education using App inventor on Problem-solving Ability and Self-efficacy, Perception

  • Kim, Seong-Won;Lee, Youngjun
    • Journal of the Korea Society of Computer and Information
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    • v.22 no.1
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    • pp.123-134
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    • 2017
  • The ability to use information technology has become increasingly important as technological advances continue to sweep through the computing world, and education for improving computational thinking has become globally instituted. In South Korea, informatics subjects have been modified in the 2015 curriculum and are now compulsory in primary and secondary education. However, despite substantial financial investment and numerous studies promoting informatics education, there continues to be a serious lack of pre-service teachers capable of teaching computational thinking. This study investigated pre-service teacher programming education using App Inventor, their perceptions of App Inventor, and how use of the program affected teacher problem-solving abilities and self-efficacy. In the pre-test, the control group and experimental group showed no statistically significant difference; however, the post-test revealed that the two groups showed statistically significant differences in problem-solving skills and self-efficacy. The participants initially showed interest in using App Inventor; however, after practice-teaching and project-based learning, the participants demonstrated a growing negativity toward the program when they made errors and the functional limits of App Inventor became apparent. Although most participants stated that they would not use App Inventor in their classes, the positive statistically significant differences in problem-solving skills and self-efficacy indicate that this study could be utilized as a basis for building a teaching-learning program using App Inventor and creating an educational plan for teaching computational thinking.

A Study on the Implementation of Nanta Music using a Haptic Device in Virtual Reality (가상현실에서 Haptic 디바이스를 활용한 난타 음악 구현에 관한 연구)

  • Ko, Young-Hyuk
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.11 no.4
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    • pp.125-130
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    • 2011
  • This paper investigates the possibility of exploiting haptic force-feedback technology for interacting with Nanta music. We use VR technologies including touch processing technologies and haptic devices to offer touch of cylinder objects and cup object to users. Haptic device is used to implement touch model in VR space. Matlab/Simulink and proSENCE Virtual Touch Toolbox of Handshake Inc. for experiment, are used as programing tools. Function needed to describe the movement of x, y, and z axis respectively are applied to delineate the natural movement of water in cup object modeled with 3D. A certain amount of water in cup object has the difference of sounds. In experiment, to perceive the appearance of 3D object by touch and to feel the tactile by touch are conducted with the effect of sound on Haptic perception. We also verify that it is possible to develop games or contents in VR space by using point.

Delayed Mode Quality Control of Argo Data and Its Verification in the Pacific Ocean (태평양 Argo 자료의 지연모드 품질관리 및 검증연구)

  • Yang, Joon-Yong;Kang, Seong-Yun;Go, Woo-Jin;Suh, Young-Sang;Seo, Jang-Won;Suk, Moon-Sik
    • Journal of Environmental Science International
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    • v.17 no.12
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    • pp.1353-1361
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    • 2008
  • Quality control of Argo(Array for Real-time Geostrophic Oceanography) data is crucial by reason that salinity measurements are liable to experience some drift and offset due to biofouling, contamination of sensor and wash-out of biocide. The automated Argo real-time quality control has a limit of sorting data quality, so that WJO program is adopted as standardized method of Argo delayed mode quality control (DMQc) in the world that is a precise quality control method. We conducted DMQC on pressure, temperature and salinity measured by Argo floats in the Pacific Ocean including expert evaluation. Particularly, salinity data were corrected using WJO program. 4 salinity profiles of Argo delayed mode were compared with nearby in situ CTD data and other Argo data in deep layer where oceanographic conditions are stable in time and space. The differences of both salinities were lower than target accuracy of Argo. As compared with the difference of salinities before DMQC, those after DMQC decreased by 60-80 percent. Quality of delayed mode salinity data seemed to be improved correcting salinity data suggested by WJO program.

Effectiveness and Safety Verification of Brinzolamide Combination Therapy on Primary Open-angle Glaucoma or Ocular Hypertension: A Systematic Review and Meta-analysis Study (브린졸라미드 복합제의 개방각 녹내장 또는 고안압증에 대한 효과 및 안전성 검증: 체계적 문헌 고찰 및 메타분석 연구)

  • Kim, Jin A;Lee, Heeyoung
    • Korean Journal of Clinical Pharmacy
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    • v.31 no.3
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    • pp.205-215
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    • 2021
  • Background: The treatment of primary open-angle glaucoma (POAG) or ocular hypertension (OHT) for intraocular pressure (IOP) reduction is recommended to proceed with the use of the compound. Therefore, this study aimed to evaluate the efficacy and safety of brinzolamide combination therapy on POAG and OHT following the subgroup analysis among types of brinzolamide combined medications. Methods: By June 2019, PubMed, EMBASE and Cochrane Library were searched to find a study that met our inclusion criteria. Based on randomized control trials (RCTs), we collected studies that tested the brinzolamide combination therapy in POAG and OHT patients, and analyzed the literature identified by the results of the study on IOP reduction and adverse reactions. Results: A total of 13 literature was collected to conduct an analysis including 2,197 patients. The intervention included brinzolamide combination therapies, combined with timolol, brimonidine, PGA or combined with both brimonidine and PGA. The analysis showed significant decreasing tendency for values at morning and end treatment per day in the use of brinzolamide combination therapy in the absolute IOP change (mean difference (MD) -1.41; 95% CI -1.92, -0.90; p<0.001 vs. MD -1.46; 95% CI -2.03, -0.89; p<0.00001, respectively). We could see higher adverse reactions in the brinzolamide combination group using intervention (odds ratio 1.43; 95% CI 1.20, 1.71; p<0.0001). Conclusion: Regarding IOP reduction in POAG and OHT patients, brinzolamide combination therapy is more effective but less safe than control treatment, which diverse among types of combined medications. Thus, more individualized therapy should be applied in real-world practice.

The Transition and Transmission of Yeonhwadae-Jeongjae through the Ages (<연화대>의 시대별 변천과 전승)

  • Sin, Tae-young
    • (The) Research of the performance art and culture
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    • no.32
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    • pp.427-463
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    • 2016
  • This article deals with five main theories about the origin of Yeonwahdae(蓮花臺), a Korean court dance(jeongjae; 呈才) and its transmission process through the age from Chinese Dang(唐) and Song(宋) to Goryo(高麗) and Joseon(朝鮮) in Korea. As a result, it was found that there was a significant difference between Chinese Chaj-u(?枝舞) dance and Korean Yeonwahdae, and furthermore there was an enormous change as it came to Joseon period in the number of performer, costume and music. Therefore, it is seriously necessary to select, restore the main version of Yeonwahdae in each period, and to make an effort to create new version of Yeonwahdae that reflects the spirit and taste of our time. Besides, it is important to inherit the inner spirit of Yeonwahdae as well as its outer appearance. Shortly, the main purpose of Yeonwahdae performance at present should be to reflect the most important, urgent issues of our time thereby to pray the welfare and prosperity of our country.