• 제목/요약/키워드: diversity methods

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다양성과 재사용성을 가진 가상 인간의 기본 행동 구현 (Implementation of the basic Actions for Virtual Human with Diversity and Reusability)

  • 김유신;정근재;박종희
    • 한국콘텐츠학회논문지
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    • 제11권7호
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    • pp.9-20
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    • 2011
  • 본 논문은 가상세계속의 가상인간의 다양한 행동들을 제한된 개수의 기본행동들로써 구현하고자 한다. 먼저 객체들의 속성과 행동 등을 통합적으로 나타내주는 지식베이스인 온톨로지를 사용하여 다양한 행동들을 행동계층구조로 조직하고 그 속에서 행동들은 세부 행동들로 구체화한다. 가상인간의 기본행동은 기초 동작들의 조합으로 만들어지고 기본행동들을 최대한 재사용함으로써 다양한 행동들을 효과적으로 구현할 수 있게 설계한다. 이 때 기본행동들을 정밀성이나 사실성보다 간소함과 다양성에 초점을 맞추어 구현하고자 한다. 이를 바탕으로 가상 에이전트들의 특성을 파악하고 특성에 따라 에이전트가 고유의 패턴을 가지고 동작을 생성하는 방법을 개발한다. 또한 가상의 에이전트가 주변의 정성적 변화에 적응하여 동작을 변화하는 방법을 제시한다. 이렇게 제시된 방법들을 인간의 실제 움직임들 즉, 걷기, 달리기, 던지기 등의 동작에 적용해 실현가능성을 검증한다.

Relationship between dietary intakes and the double burden of malnutrition in adults of Malang, Indonesia: An exploratory study

  • Lee, Soo Jin;Ryu, Ho Kyung
    • Nutrition Research and Practice
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    • 제12권5호
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    • pp.426-435
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    • 2018
  • BACKGROUND/OBJECTIVES: Urbanization and lifestyle changes have resulted in nutrition transition. Over-nutrition causes obesity increase, although malnutrition still exists. This phenomenon is called a double burden of malnutrition (DBM). This study was conducted to confirm the existence of DBM and to investigate the dietary factors related to DBM in Indonesian adults. SUBJECTS/METHODS: Data for the subjects (51 men and 89 women) who are the adults resided in Malang, Indonesia were collected between July 17 and August 14, 2017, by using questionnaire. Height, weight, waist and hip circumference, blood pressure, blood glucose, total cholesterol, and hemoglobin were also measured for the subjects. RESULTS: The average age of the subjects was 47.2 years. The average height, weight, and body mass index for men were 160.08 cm, 62.6 kg and $25.45kg/m^2$, respectively, and those for women were 148.74 cm, 58.09 kg, and $26.21kg/m^2$, respectively. Of the subjects, 3.6% were underweight, 24.3% were normal or healthy weight, while 72.2% were overweight and obese. Analysis of the dietary intakes revealed high for cereal (7.73 points), but very low for milk (0.25 points) and fruits (0.51 points). Dietary diversity was very few overall (< 5). The occurrence of both anemia (23.6%) and chronic diseases such as hypertension (57.1%), diabetes (12.1%), and hypercholesterolemia (3.6%) was considerably high. The existence of DBM was confirmed by 16.4% of the subjects. DBM was observed significantly higher in women than in men. Dietary diversity and DBM occurrence were inversely correlated. On average, the number of chronic diseases was 1.08 in men and 1.79 in women. Dietary diversity inversely affected systolic blood pressure. CONCLUSIONS: DBM existed in adults in Malang, Indonesia due to inadequate dietary intakes, and a high rate of chronic diseases.

Pulsed-Field Gel Electrophoresis를 이용한 Salmonella enterica subspecies enterica bioserovar Pullorum의 분자유전학적 다양성에 관한 연구 (Genetic Diversity of Salmonella enterica subspecies enterica bioserovar Pullorum using the pulsed-field gel electrophoresis)

  • 우용구;이수화;이철현;이오수;김봉환
    • 대한수의학회지
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    • 제43권1호
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    • pp.77-86
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    • 2003
  • Pullorum disease due to Salmonella enterica subspecies enterica bioserovar Pullorum (S. pullorum) is reported to be an endemic disease in domestic poultry flocks. The pulsed-field gel electrophoresis (PFGE) subtyping method was used to assess the extent of genetic diversity and clonality of most of salmonella serotypes and other diverse bacterial species from animals and environmental samples in worldwide. Nowadays, PFGE has already been evaluated as a gold standards for molecular subtyping of salmonella serotypes compared with other molecular analysis methods. PFGE of XbaI digested chromosomal DNA from 23 strains of S. pullorum gave 5 distinctive pulsotypes (from SXPI to SXPV) with 5% confidence range of Dice coefficients, indicating that PFGE is very discriminative and that multiple clones of S. pullorum have been existed and diffused all of domestic poultry flocks industries since 1995. Two dominant pulsogroups (SXA & SXB) appeared as a major clones in this country, because they had consistently been recovered from diverse sources including both chicken organs and raw feed materials between 1995 and 1998. In addition, the matching percentage of PFGE profiles (PFP) among strains from both chickens and feed ingredients provides indirect evidence of the possible transmission of pullorum disease from contaminated raw feed ingredients for chicken production. In calculating of discrimination index (DI) for PFGE method by Simpson's index, DI was appeared as 0.917. Therefore, this index suggested that the present PFGE would seem to be a desirable and confident molecular typing method for S. pullorum strains. To our knowledge for pullorum disease, this is the first study to compare S. pullorum strains from chicken organs and feed samples using the PFGE.

The Softest handoff Design using iterative decoding (Turbo Coding)

  • Yi, Byung-K.;Kim, Sang-G.;Picknoltz, Raymond-L.
    • Journal of Communications and Networks
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    • 제2권1호
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    • pp.76-84
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    • 2000
  • Communication systems, including cell-based mobile communication systems, multiple satellite communication systems of multi-beam satellite systems, require reliable handoff methods between cell-to-cell, satellite-to-satellite of beam-to-team, respectively. Recent measurement of a CDMA cellular system indicates that the system is in handoff at about 35% to 70% of an average call period. Therefore, system reliability during handoff is one of the major system performance parameters and eventually becomes a factor in the overall system capacity. This paper presents novel and improved techniques for handoff in cellular communications, multi-beam and multi-satellite systems that require handoff during a session. this new handoff system combines the soft handoff mechanism currently implemented in the IS-95 CDMA with code and packet diversity combining techniques and an iterative decoding algorithm (Turbo Coding). the Turbo code introduced by Berrou et all. has been demonstrated its remarkable performance achieving the near Shannon channel capacity [1]. Recently. Turbo codes have been adapted as the coding scheme for the data transmission of the third generation international cellular communication standards : UTRA and CDMA 2000. Our proposed encoder and decoder schemes modified from the original Turbo code is suitable for the code and packet diversity combining techniques. this proposed system provides not only an unprecedented coding gain from the Turbo code and it iterative decoding, but also gain induced by the code and packet diversity combining technique which is similar to the hybrid Type II ARQ. We demonstrate performance improvements in AWGN channel and Rayleigh fading channel with perfect channel state information (CSI) through simulations for at low signal to noise ratio and analysis using exact upper bounding techniques for medium to high signal to noise ratio.

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IEEE 802.16e 링크에서 시공간 블록 부호의 연판정 검출에 따른 터보 부호의 성능평가 (Performance Evaluation of Turbo Codes by Soft Detection Metrics of STBC over an IEEE 802.16e Link)

  • 김영민;김수영;임광재
    • 대한전자공학회논문지TC
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    • 제47권2호
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    • pp.1-8
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    • 2010
  • 시공간 부호를 사용한 다중 안테나 기술은 추가적인 대역폭 필요 없이 다중 경로 환경에서 다이버시티 이득을 얻을 수 있다는 장점이 있다. 이런 이유로 IEEE 802.16을 포함한 대부분의 4G 표준 후보기술들은 높은 처리 성능을 만족시키는 다중 안테나 기술을 채택 하고 있다. 또한, 이러한 4G 시스템에 대한 후보 기술 규격들에서는 심각한 페이딩을 극복하기 위해 연판정 입출력을 반복적 사용하는 터보 부호를 채택하고 있기 때문에 다중안테나 수신기에서 연판정 검출 값은 반드시 필요하다. 본 논문에서는 여러 가지 시공간 부호 기술들에서 연판정 검출 값을 계산하는 방법을 분석하여 주어진 방식에서 가장 효율적인 방식을 제안하고, IEEE 802.16e 링크에서 터보부호화 연계하여 성능 시뮬레이션 결과를 제시한다.

2016년 한국 경기도의 3월 황사기간 동안 부유세균 군집과 다양성에 대한 메타지노믹 분석 (Metagenomic Analysis of Airborne Bacteria Community and Diversity in Gyeonggi-do, Korea, during March 2016, Asian Dust Event)

  • 장준형;김지혜;배경선;김정명;이원석;정현미;박상정;서태근
    • 한국환경보건학회지
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    • 제43권6호
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    • pp.491-498
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    • 2017
  • Objective: Bacterial abundance and community compositions have been examined in Asian dust events, clarifying their impacts on public health. This study aims to determine the bacterial community compositions and viable bacteria in Asian dust particles in the Asian dust or non-Asian dust event of March 2016. Methods: The dust samples were collected using the high volume air sampler or high volume cascade impactor, and bacterial 16S rRNA genes were amplified using PCR, followed by pyrosequencing. Bacterial diversity index, richness estimate and community composition in the particles were analyzed from the sequencing data using Mothur software. Results: The results showed that the diversity and richness during Asian dust events were higher than them in non-Asian dust events. The total bacterial community analysis showed that at the phylum Proteobacteria, Actinobacteria and Firmicutes were the most dominant of Asian dust events and non-Asian dust events. In addition, the bacterial colony counts were higher during Asian dust event, comparing with non-Asian dust event. Conclusions: This study showed that bacterial community and richness of Asian dust samples was more complex and higher than non-Asian dust samples in Gyeonggi-do, Korea, which could affect public health and environment. Thus, the continuous monitoring of Asian dust could be an alternative for managing airborne bacteria.

Dietary lysophospholipids supplementation inhibited the activity of lipolytic bacteria in forage with high oil diet: an in vitro study

  • Kim, Hanbeen;Kim, Byeongwoo;Cho, Seongkeun;Kwon, Inhyuk;Seo, Jakyeom
    • Asian-Australasian Journal of Animal Sciences
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    • 제33권10호
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    • pp.1590-1598
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    • 2020
  • Objective: The objective of this study was to evaluate the effects of lysophospholipids (LPL) supplementation on rumen fermentation, degradability, and microbial diversity in forage with high oil diet in an in vitro system. Methods: Four experimental treatments were used: i) annual ryegrass (CON), ii) 93% annual ryegrass +7% corn oil on a dry matter (DM) basis (OiL), iii) OiL with a low level (0.08% of dietary DM) of LPL (LLPL), and iv) OiL with a high level (0.16% of dietary DM) of LPL (HLPL). An in vitro fermentation experiment was performed using strained rumen fluid for 48 h incubations. In vitro DM degradability (IVDMD), in vitro neutral detergent fiber degradability, pH, ammonia nitrogen (NH3-N), volatile fatty acid (VFA), and microbial diversity were estimated. Results: There was no significant change in IVDMD, pH, NH3-N, and total VFA production among treatments. The LPL supplementation significantly increased the proportion of butyrate and valerate (Linear effect [Lin], p = 0.004 and <0.001, respectively). The LPL supplementation tended to increase the total bacteria in a linear manner (p = 0.089). There were significant decreases in the relative proportions of cellulolytic (Fibrobacter succinogenes and Ruminococcus albus) and lipolytic (Anaerovibrio lipolytica and Butyrivibrio proteoclasticus) bacteria with increasing levels of LPL supplementation (Lin, p = 0.028, 0.006, 0.003, and 0.003, respectively). Conclusion: The LPL supplementation had antimicrobial effects on several cellulolytic and lipolytic bacteria, with no significant difference in nutrient degradability (DM and neutral detergent fiber) and general bacterial counts, suggesting that LPL supplementation might increase the enzymatic activity of rumen bacteria. Therefore, LPL supplementation may be more effective as an antimicrobial agent rather than as an emulsifier in the rumen.

국내 최초 환경부 지정 논 습지 지역인 공검지의 곤충 다양성 (Insect Diversity on the Paddy Field Wetland, Gonggeom-ji, Sangju, first designed by Ministry of Environment, Korea)

  • 김명환;황정호;최은영;박진영;박종균
    • 한국습지학회지
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    • 제19권1호
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    • pp.155-163
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    • 2017
  • 본 연구는 2011년 환경부가 보호습지로 지정한 최초의 논습지인 상주 공검지에 서식하는 곤충의 다양성을 평가하기 위해 수행되었다. 채집방법은 직접찾기, 쓸어잡기와 함정트랩을 이용하였으며, 2014년도 3월~11월 중에서 4회 채집하였다. 본 연구에서 총 8목 78과 205속 227종 1,327개체가 확인되었다. 이 중 딱정벌레목이 가장 풍부했고 (42.73%), 노린재목이 두 번째로 많았다(22.47%). 이 연구에서 총 다양성지수는 6.339으로 매우 높게 나타났다. 우점도지수는 0.143, 균등도는 0.810로 나타났다. 전체적으로, 종간 경쟁이 높고 군집 안정도 또한 높다. 그러므로 공검지는 안정적이고 긍정적인 환경을 가졌다고 할 수 있다.

Genetic Diversity of Echinococcus granulosus in Center of Iran

  • Pestechian, Nader;Safa, Ahmad Hosseini;Tajedini, Mohammadhasan;Rostami-Nejad, Mohammad;Mousavi, Mohammad;Yousofi, Hosseinali;Javanmard, Shaghayegh Haghjooy
    • Parasites, Hosts and Diseases
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    • 제52권4호
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    • pp.413-418
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    • 2014
  • Hydatid cyst caused by Echinococcus granulosus is one of the most important parasitic diseases around the world and many countries in Asia, including Iran, are involved with this infection. This disease can cause high mortality in humans as well as economic losses in livestock. To date, several molecular methods have been used to determine the genetic diversity of E. granulosus. So far, identification of E. granulosus using real-time PCR fluorescence-based quantitative assays has not been studied worldwide, also in Iran. Therefore, the aim of this study was to investigate the genetic diversity of E. granulosus from center of Iran using real-time PCR method. A total of 71 hydatid cysts were collected from infected sheep, goat, and cattle slaughtered in Isfahan, Iran during 2013. DNA was extracted from protoscolices and/or germinal layers from each individual cyst and used as template to amplify the mitochondrial cytochrome c oxidase subunit 1 gene (cox1) (420 bp). Five cattle isolates out of 71 isolates were sterile and excluded from further investigation. Overall, of 66 isolates, partial sequences of the cox1 gene of E. granulosus indicated the presence of genotypes G1 in 49 isolates (74.2%), G3 in 15 isolates (22.7%), and G6 in 2 isolates (3.0%) in infected intermediate hosts. Sixteen sequences of G1 genotype had microgenetic variants, and they were compared to the original sequence of cox1. However, isolates identified as G3 and G6 genotypes were completely consistent with original sequences. G1 genotype in livestock was the dominant genotype in Isfahan region, Iran.

조선 후기 회화에 나타난 인물 표현의 유형에 관한 연구 (A Study on the Characteristics of the Human Figure Expressed in Late Joseon Dynasty Paintings)

  • 정윤주;이순재
    • 한국의류학회지
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    • 제38권5호
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    • pp.638-653
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    • 2014
  • The structure of noble centered social status of the late Joseon Dynasty collapsed due to the commoner's higher status and increased level of consciousness caused by the growth of commerce and agriculture. In art, the a Korean and ethnical style dominated; however, with a diversity in the depiction of human figures in portraits, Buddhist paintings, genre paintings and folklore paintings. This study examines the diversity in human figures expressed in the paintings of the late Joseon Dynasty by expanding the common aesthetic fixed to the typical Joseon style of renowned painters. The conclusion of this study is as follows. The human figure is categorized into three different types of 'realistic', 'ideal', and 'distortion' based on the aesthetic category. First, the realistic type is defined literally by its realistic and detailed depiction of noble class portraits classified as extreme type and general type. The extreme type's formative element is hypersubtlety which includes a simultaneous aesthetic of aptness and ugliness. The general type shows subtlety with aesthetic of aptness. Second, the ideal type is defined by representing the standard form of time and criteria classified as beautified type, absolute type, and dignified type. Each shows a different character of gender of femininity, androgyny, and masculinity. Third, distortion types are defined by a characteristic expression of humans by transshaping the features in various methods categorized as grotesque, abjection, friendly, rustic, and caricature type. Each shows different formative elements of bizarre, patheticness, voluptuous, inartificial, and immaturity.