• 제목/요약/키워드: rap

검색결과 224건 처리시간 0.029초

SVC 기반의 DASH 서비스를 위한 스케일러블 임의접근 지원 방법 (Scalable Random Access for SVC-based DASH Service)

  • 서광덕;이홍래;김재곤;정순흥;유정주;정영호
    • 방송공학회논문지
    • /
    • 제16권6호
    • /
    • pp.1073-1076
    • /
    • 2011
  • 본 논문에서는 SVC 기반의 HTTP 스트리밍 서비스에서 기본계층 뿐만 아니라 향상계층에 대해서도 임의접근 기능을 지원할 수 있는 스케일러블 임의접근 (random access) 방법을 제안한다. 이를 위해서, 제안하는 방법은 DASH 표준에 포함된 segment index box('sidx')를 확장하며 RAP Synchronization Box ('raps')를 새롭게 추가한다. 제안된 방법에 의해서 ISO 파일 포맷을 기반으로 파일에 저장되어 있는 SVC 비디오 계층들로 구성된 movie fragment들에 대한 스케일러블 임의접근이 가능하다.

A Case Study of Human Resource Allocation for Effective Hotel Management

  • Murakami, Kayoko;Tasan, Seren Ozmehmet;Gen, Mitsuo;Oyabu, Takashi
    • Industrial Engineering and Management Systems
    • /
    • 제10권1호
    • /
    • pp.54-64
    • /
    • 2011
  • The purpose of this study is to optimally allocate the human resources to tasks while minimizing the total daily human resource costs and smoothing the human resource usage. The human resource allocation problem (hRAP) under consideration contains two kinds of special constraints, i.e. operational precedence and skill constraints in addition to the ordinary constraints. To deal with the multiple objectives and the special constraints, first we designed this hRAP as a network problem and then proposed a Pareto multistage decisionbased genetic algorithm (P-mdGA). During the evolutionary process of P-mdGA, a Pareto evaluation procedure called generalized Pareto-based scale-independent fitness function approach is used to evaluate the solutions. Additionally, in order to improve the performance of P-mdGA, we use fuzzy logic controller for fine-tuning of genetic parameters. Finally, in order to demonstrate the applicability and to evaluate the performance of the proposed approach, P-mdGA is applied to solve a case study in a hotel, where the managers usually need helpful automatic support for effectively allocating hotel staff to hotel tasks.

Growth of carbon nanotubes on metal substrate for electronic devices

  • Ryu, Je-Hwang;Kim, Ki-Seo;Lee, Chang-Seok;Min, Kyung-Woo;Song, Na-Young;Jeung, Il-Ok;Manivannan, S.;Moon, Jong-Hyun;Park, Kyu-Chang;Jang, Jin
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
    • /
    • pp.1632-1635
    • /
    • 2007
  • We developed a novel growth method of CNTs on metal substrate for device applications, deposited by a triode direct current plasma enhanced chemical vapor deposition (dc-PECVD). With resist-assisted patterning (RAP) method, we had grown CNTs on metal substrate, which were strongly bonded with metal substrate.

  • PDF

Effects of Dietary Gum Phospholipid on Lipid Metabolism in Broiler Chicks

  • An, B.K.;Kang, C.W.;Nishiyama, H.;Iwata, T.;Tanaka, K.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • 제13권4호
    • /
    • pp.506-510
    • /
    • 2000
  • This experiment was to determine the usefulness of gum safflower phospholipid as a feed ingredient. Forty female broiler chicks were divided into four groups and fed experimental diets containing following fats and oils; beef tallow (Tallow), the blend of safflower oil and palm oil (SP-oil), gum rapeseed phospholipid (Rap-PL), or gum safflower phospholipid (Saf-PL) for 21days. There were no differences in growth performances among the treatments. Abdominal fat weight tended to be reduced in the chicks fed. phospholipids. The activity of hepatic acetyl-CoA carboxylase was significantly reduced in the Rap-PL and Saf-PL as compared to that of Tallow. Feeding dietary phospholipids resulted in a slight reduction in total fat and triglyceride contents in the breast and thigh muscles. In addition, total fat and triglyceride contents in the thigh muscle were significantly decreased by dietary Saf-PL as compared to those of Tallow. These results suggested that dietary gum phospholipids, either from rapeseed or safflower, had desirable effects of lowing abdominal and muscle fats, and could be used as a feed ingredient for broiler diets.

아동의 반복성 복통에 대한 고려수지요법의 효과 (The Effect of Koryo-Hand-Acupuncture on Recurrent Abdominal Pain of Children)

  • 홍연란
    • Child Health Nursing Research
    • /
    • 제7권4호
    • /
    • pp.519-529
    • /
    • 2001
  • Recurrent abdominal pain(RAP) occurs in 8-10% of elementary school children. It is suspected that functional causes are about 90% and organic causes about 10% for the recurrent abdominal pain. RAP is treated by antispasmodics or analgesics or antidiarrheal drugs in school health rooms. The purpose of this study was to verify the effect of Koryo-Hand-Acupuncture on recurrent abdominal pain of children. The duration of this study was from April to July, 2001. The subjects were the grade 4th-6th elementary students complaining recurrent abdominal pain. Total subjects were 46 cases; 23 cases of which were placed in experimental and the others in control group. The results of this study were as follows; 1. Numeric-pain-intensity of experimental group received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. 2. Probed current in stomach corresponding point (A12) of experimental received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. 3. Medication requirement rate of experimental group received Koryo-Hand-Acupuncture was decreased more than that of control group received mock Koryo-Hand-Acupuncture significantly. The following suggestions with the results of the study would be made like these; 1. Stimulation implement of Koryo-Hand- Acupuncture should be used independently and each effect should be investigated. 2. With repeated studies for various signs and diseases, the effect of Koryo-Hand- Acupuncture must be verified.

  • PDF

댐 운영을 고려한 금강의 생태.수문학적 변화 평가 : II. 수리학적 어류서식처 조건 분석 (Evaluation of Eco-Hydrological Changes in the Geum River Considering Dam Operations : II. Hydraulic Fish Habitat Condition Analysis)

  • 박상영;김정곤;고익환
    • 한국수자원학회논문집
    • /
    • 제42권5호
    • /
    • pp.407-414
    • /
    • 2009
  • 본 논문에서는 대청댐 하류 금강을 대상으로 댐건설에 따른 유황 변동이 어류서식처 환경에 미치는 영향을 정량적으로 분석하였다. 분석에는 RAP을 이용하였고, 대표어종으로는 쉬리, 참마자, 감돌고기를 선정하였다. 분석 결과에 따르면 유량이 감소하는 갈수기에 대청댐의 건설과 더불어 서식처 조건이 향상 하였으나, 용담댐 건설의 영향은 미미한 것으로 나타났다. 이와 같은 결과는 댐건설에 따른 갈수기의 방류량 증가가 본 연구에서 선정한 대표어종들이 선호하는 서식처 조건을 유지하는데 도움이 된 것으로 판단된다.

포 발사 고체연료 램제트 탄의 설계 및 성능해석에 관한 연구 (A Study on the Design and Performance Analysis of a Gun-Launched Projectile with Solid fuel Ramjet(SFRJ))

  • 이상길;김창기;이상승
    • 한국추진공학회지
    • /
    • 제12권3호
    • /
    • pp.49-59
    • /
    • 2008
  • 본 연구에서는 155 mm 고체연료 램제트 추진 탄의 설계방법을 제시하였고 수학적 모델링을 통한 비행성능 해석 프로그램을 개발하였다. 비행성능 해석을 통하여 추력, 비추력, 압력 회복률, 충격파의 위치, 항력의 크기 등 비행 중 램제트 성능을 예측하였다. 비행탄도 해석결과 RAP에 비하여 90 % 정도의 사거리 증대효과를 나타내었다. 또한 노즐 출구 면적비와 흡입구 면적의 변화에 따른 사거리 변화의 추이를 살펴보았다. 제시된 모델링과 시뮬레이션 방법은 램제트 탄의 개발에 필요한 설계 자료로 매우 유용할 것이다.

New Players in the BRCA1-mediated DNA Damage Responsive Pathway

  • Kim, Hongtae;Chen Junjie
    • Molecules and Cells
    • /
    • 제25권4호
    • /
    • pp.457-461
    • /
    • 2008
  • DNA damage checkpoint is an important self-defense mechanism for the maintenance of genome stability. Defects in DNA damage signaling and repair lead to various disorders and increase tumor incidence in humans. In the past 10 years, we have identified many components involved in the DNA damage-signaling pathway, including the product of breast cancer susceptibility gene 1 (BRCA1). Mutations in BRCA1 are associated with increased risk of breast and ovarian cancers, highlighting the importance of this DNA damage-signaling pathway in tumor suppression. While it becomes clear that BRCA1 plays a crucial role in the DNA damage responsive pathway, exactly how BRCA1 receives DNA damage signals and exerts its checkpoint function has not been fully addressed. A series of recent studies reported the discovery of many novel components involved in DNA damage-signaling pathway. These newly identified checkpoint proteins, including RNF8, RAP80 and CCDC98, work in concern in recruiting BRCA1 to DNA damage sites and thus regulate BRCA1 function in G2/M checkpoint control. This review will summarize these recent findings and provide an updated view of the regulation of BRCA1 in response to DNA damage.

랩퍼(Rapper) 패션에 나타난 저항성(抵抗性) 연구(硏究) (A Study on Resistance in Rapper Fashion)

  • 권혁주;양숙희
    • 패션비즈니스
    • /
    • 제5권1호
    • /
    • pp.53-71
    • /
    • 2001
  • The purpose of this study how 'Afro-American resistance' is showed up in the fashion trough the study of rapper's fashion present in singing rap music. Rap music produced by the influence of black music. It have been the tool of expression of pain and sorrow of their lives and included their resistant spirit. So rapper's fashion expressed resistance. at this point I categorized the resistant feature of rapper's fashion at two types in terms of the extent of expression. Their are active resistance fashion and passive resistance fashion. Also each fashion types was classified in terms of style, material, color, accessories and so forth. Active fashion is possible to classify these three styles as follows. The first one is Afrocentic style that was raised from longing for Africa. The second one is Military style which contains an ling-time enduring spirit of resistance against the society. The last one is Hiphop style that violated the typical rule of dressing under the hiphop style culture. these kinds of active resistance are also classified as material like blue Jean showing black workers' resistance, color like black showing off superiority of 'black' and red, gold and green color expressing black people's resistance, and other accessories like chains, cross and so on. Passive resistance fashion has several variations according to the style. There are Jazz style, Uniform style and Hiphop style. It is also categorized as high-tech materials, white color which is the expression of desire for white and luxurious accessories showing off wealth.

  • PDF

무시멘트 첨가제를 활용한 상온 재활용 아스팔트 혼합물의 성능 분석 (Performance Evaluation of Cold Recycled Asphalt Mixtures with Asphalt Emulsion and Inorganic Additives)

  • 박창규;김경수;김원재;이현종
    • 한국도로학회논문집
    • /
    • 제19권2호
    • /
    • pp.137-142
    • /
    • 2017
  • PURPOSES :The objective of this study is to evaluate the performance of asphalt mixtures containing inorganic additive and a high content of reclaimed asphalt pavement (RAP). METHODS : The laboratory tests verified the superior laboratory performance of inorganic additive compared to cement, in cold recycled asphalt mixtures. To investigate the moisture susceptibility of the specimens, tensile strength ratio (TSR) tests were performed. In addition, dynamic modulus test was conducted to evaluate the performance of cold recycled asphalt mixture. RESULTS :It was determined that NaOH solution mixed with $Na_2SiO_3$ in the ratio 75:10 provides optimum performance. Compared to Type B and C counterparts, Type A mixtures consisting of an inorganic additive performed better in the Indirect tensile strength test, tensile strength ratio test, and dynamic modulus test. CONCLUSIONS : The use of inorganic additive enhances the indirect strength and dynamic modulus performance of the asphalt mixture. However, additional experiments are to be conducted to improve the reliability of the result with respect to the effect of inorganic additive.