• Title/Summary/Keyword: Dama

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DAMA-SCPC

  • Kim, Hyeon-Do
    • Satellite Communications and Space Industry
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    • v.4 no.1
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    • pp.75-80
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    • 1996
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Quality of Meat (Longissimus dorsi) from Male Fallow Deer (Dama dama) Packaged and Stored under Vacuum and Modified Atmosphere Conditions

  • Piaskowska, N.;Daszkiewicz, T.;Kubiak, D.;Zapotoczny, P.
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.12
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    • pp.1782-1789
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    • 2016
  • This study evaluated the effect of vacuum and modified atmosphere (40% $CO_2+60%$ $N_2$, MA) packaging on the chemical composition, physicochemical properties and sensory attributes of chill-stored meat from 10 fallow deer (Dama dama) bucks at 17 to 18 months of age. The animals were hunter-harvested in the forests of north-eastern Poland. During carcass dressing (48 to 54 h post mortem), both musculus longissimus muscles were cut out. Each muscle was divided into seven sections which were allocated to three groups: 0, A, and B. Samples 0 were immediately subjected to laboratory analyses. Samples A were vacuum-packaged, and samples B were packaged in MA. Packaged samples were stored for 7, 14, and 21 days at $2^{\circ}C$. The results of the present study showed that the evaluated packaging systems had no significant effect on the quality of fallow deer meat during chilled storage. However, vacuum-packaged meat samples were characterised by greater drip loss. Vacuum and MA packaging contributed to preserving the desired physicochemical properties and sensory attributes of meat during 21 days of storage. Regardless of the packaging method used, undesirable changes in the colour, water-holding capacity and juiciness of meat, accompanied by tenderness improvement, were observed during chilled storage.

The Study on Synthesis and Application of Polymer Dispersion for Cement Modifier -The Waterproffing Effeet of Cement Mortar by Poly[DMA-co-DAMA] Emulsion- (시멘트 혼화용 폴리머 합성과 그 응용에 관한 연구 -Poly[DMA-co-DAMA] 에멀젼을 이용한 시멘트 모르타르의 방수성-)

  • Kim, Young-Geun;Herh, Dong-Seop;Park, Hong-Soo
    • Applied Chemistry for Engineering
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    • v.5 no.4
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    • pp.669-680
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    • 1994
  • DMA-co-DAMA were synthesized from 2-diethylaminoethyl metacrylate and dodecyl-metacrylate containing long chain hydrocarbon group with hydrophilic and hydrophobic radicals. To facilitate water emulsification,acrylic copolymer was cationized by acetic acid to produce acetated acrylic copolymer. The structures of the synthesized copolymer and acetated copolymers were confirmed by IR, NMR, and molecular weight was measured by GPC, and C. H. N elemental analysis. Acetated acrylic copolymers were perfectly emulsified in water and showed increased emulsion stability. Polymer dispersion for cement modifier(PDCM-PDD) was prepared by blending of the guaternized acrylic copolymer synthesized above sodium silicate sodium gluconate oleic acid and triethanol amine. The result with prepared polymer dispersion of cement modfier was examined, and it was found that excellent waterproffing effect; Water permeability ratio is 0.44 under the water pressure of $100g/cm^2$ and 0.55 under $3kg/cm^2$, and water absorption ratio is 0.36~0.47 and 1.02 compressive strength ratio at mixed ratio of water/PDCM-PDD is 45 times.

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Sliced Channel Allocation Method for Multirate Communtiaction Environments using DAMA Scheduler (Multirate 통신환경에서 DAMA 스케줄러를 이용한 슬라이스 채널 할당방법)

  • Yu, Byung-Kwan;Kim, Hae-Ki;An, Chy-Hun;Kim, Nam;Kim, Soo-Hyung
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.10 no.2
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    • pp.157-168
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    • 1999
  • In this paper the new channel allocation method which is important in designing mobile radio system, is proposed. If the channel is allocated by time-frequency-code sliced and using DAMA scheduler, the blocking probability is lower than TA channel allocation method. With traffic load $\rho$=0.8 and 2% of blocking probability, TFS method can allocate 36 slices compared to 11 slices in TA method. At traffic load $\rho$=0.9 and 1% of blocking probability, the maximum available slices are 13 in TA method, but in TFS method 40 slices are allocated to user, so TFS method is better frequency availability by 3.75 times than TA method. TFS method could be suitable for system planning to multirate communication users.

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Study of the density of horns from cervids

  • Vashukevich, Yury Evgenjevich;Vashukevich, Elena Valirievna;Polzer, Gottlieb;Polzer, Liza;Shvetsova, Svetlana Viktorovna;Khantakova, Victoria Mikhailovna
    • Journal of Species Research
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    • v.4 no.1
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    • pp.45-48
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    • 2015
  • The article is devoted to the study of the density dependence of the horns tissue on the species and the age of the representatives of the deer family. In scientific literature this problem was covered partially. Basic physical parameters (mass, volume, and density) of horns from red deer (Cervus elaphus), fallow deer (Dama dama), European (Capreolus capreolus) and Siberian roe deer (Capreolus pygargus) were estimated. The present study was designed to analyze the results for making identification of species and age of the animal possible.

A Study on QoS Mapping Scheme for DAMA-based MF-TDMA Satellite Network (요구할당 기반 MF-TDMA 위성통신망에서 QoS 맵핑 기술에 관한 연구)

  • Kim, Moon;Cho, Byeong Gak
    • Proceedings of the Korea Information Processing Society Conference
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    • 2012.11a
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    • pp.743-745
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    • 2012
  • 본 논문에서는 DAMA (Demand Assigned Multiple Access) 방식의 MF-TDMA ((Multi Frequency-Time Division Multiple Access) 시스템을 사용하는 위성통신망에서 QoS (Quality of Service) 성능의 보장 및 향상을 위한 효율적인 QoS 맵핑 기술을 제안한다. 제안하는 QoS 맵핑 기술은 트래픽의 패킷 우선순위와 함께 송수신 가입자 우선순위 및 위성통신망의 링크상태에 따라 트래픽의 QoS 우선순위를 결정한다. 따라서, 효과적인 트래픽 우선순위의 차별화를 통해 트래픽의 자원할당 및 전송의 QoS 성능을 향상시킬 수 있다.