• 제목/요약/키워드: SoS

검색결과 33,170건 처리시간 0.056초

WiMedia Distributed MAC 통신 시스템에서 QoS 성능 향상을 위한 릴레이 통신 프로토콜 (Relay Transmission Protocol for QoS Enhancement in WiMedia Distributed MAC/WUSB Systems)

  • 허경
    • 한국정보통신학회논문지
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    • 제16권4호
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    • pp.692-700
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    • 2012
  • 본 논문에서는 UWB 기술 기반 WiMedia 무선 USB Distributed Medium Access Control (D-MAC) 프로토콜의 공평하고 분산적인 SoQ기반 Distributed Reservation Protocol (DRP) 타임슬롯 자원 할당 방법의 성능을 분석하고, DRP 예약 충돌을 회피하기 위해 릴레이 통신 기술을 적용한 SoQ 릴레이 전송 프로토콜을 제안한다. 본 논문에서 제안하는 SoQ 릴레이 전송 프로토콜은 Satisfaction of QoS (SoQ) 알고리즘을 각 단말 디바이스에서 분산적으로 실행하고, 충돌대상 디바이스에게 예약된 QoS 자원을 유지할 수 있도록 Direct Link 뿐만 아니라 릴레이 노드를 경유하여 또 다른 Indirect Link 링크를 예약할 수 있는 자원 예약 프로토콜을 제안한다.

TTAB 용액에서 Benzenesulfonate 음이온과 유도체들의 가용화에 대한 연구 (Solubilization of Benzenesulfonate anion and Its Derivatives by the Micellar System of TTAB)

  • 이병환
    • 대한화학회지
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    • 제45권1호
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    • pp.7-13
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    • 2001
  • 양이온 계면활성제인 TTAB(tetradecyltrimethylammonium bromide)의 수용액에서 benzenesulfonate 음이온과 유도체($C_6H_5SO_3^-, p-$CH_3C_6H_4SO_3^-$p-C_2H_5C_6H_4SO_3^-$)들의 가용화 현상을 UV/Vis 분광광도법을 이용하여 연구하였다. 온도의 변화에 따른 가용화상수($K_s$)의 변화를 측정하고 분석하였으며, 또한 가용화에 영향을 미치는 n-펜탄올과 NaBr의 효과에 대하여 조사하였다. 이러한 첨가제는 $K_s$와 CMC 값을 동시에 큰 폭으로 감소시키는 경향을 나타내었으며, 측정한 In$K_s$ 값은 InCMC 값에 대하여 일차함수의 관계를 나타내었다. 그리고 열역학적 고찰을 위하여 온도에 따른 $K_s$ 값의 변화로부터 여러 가지 열역학 함수값(${\Delta}G^0_s$, ${\Delta}H^0_s$${\Delta}S^0_s$)을 계산하고 분석하였다.

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유채에서 황 결핍이 황산염 흡수 및 동화관련 효소활력에 미치는 영향 (Sulfur Deficiency Effects on Sulfate Uptake and Assimilatory Enzymes Activity in Rape Plants)

  • 이노신;김옥란;이복례;김태환
    • 한국초지조사료학회지
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    • 제29권2호
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    • pp.95-102
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    • 2009
  • 유채(Brassica napus L.)에서 외생적 황 공급이 $SO_4^{2-}$ 흡수와 동화에 대한 영향을 알아보고자 $SO_4^{2-}$ 농도를 세가지 수준(1 mM $SO_4^{2-}$, 대조구; 0.1mM $SO_4^{2-}$, 결핍; 0 mM $SO_4^{2-}$, 무공급)으로 25시간 처리한 후 식물조직내에서의 $SO_4^{2-}$ 농도, ATP sulfurylase와 APS reductase 활성을 측정하였다. $SO_4^{2-}$의 흡수와 식물조직내에서의 $SO_4^{2-}$의 농도는 결핍과 무공급 조건하에서 현저하게 감소하였다. ATP sulfurylase 활성은 외부 황 공급의 감소에 따라 증가한 반면 APS reductase 활성은 감소하였다. 황 무공급에 따른 이 두 효소 활력의 유의적인 차이는 어린잎과 중간잎에서만 고찰되었다. 이러한 결과는 한정된 황 조건하에서 특히 어린잎에서 $SO_4^{2-}$ 동화는 더욱 민감하게 반응한다는 것을 제시한다.

소아의방(小兒醫方)과 동의보감(東醫寶鑑)의 편제와 처방에 대한 연구 (Study on Prescription and Formation of SoAEuiBang and DongEuiBoGam)

  • 김초영;장규태
    • 대한한방소아과학회지
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    • 제24권1호
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    • pp.65-76
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    • 2010
  • Objectives In the later period of Choseon dynasty, korean pediatrics became a pivot part of medicine. SoAUiBang was the most important book in that era. DongEuiBoGam was the most widely read of all oriental medicine books and published in early days of the Choseon dynasty. Therefore, this comparative study on the prescription and formation of SoAUiBang and DongEuiBoGam could be a useful way to understand SoAUiBang's characteristics. Methods This study was based on SoAUiBang and DongEuiBoGam, two literatures of oriental medicine. Results 1. Formation of SoAUiBang had a similar aspect with that of DongEuiBoGam's and enlarged the area of pediatrics by featuring general medical books. However, its formation did not follow the DongEuiBoGam's, but had its unique formation. It tried to include all diseases of pediatrics in the system of DongEuiBoGam. Plus, smallpox and measles belonged to the epidemic diseases were excluded from the area of pediatrics. 2. Comparing SoAUiBang's prescription of some important diseases with DongEuiBoGam's, it was almost a prescription based on DongEuiBoGam's prescription. However, adjustment of herbs and dosages could not be found in any oriental medicine books including DongEuiBoGam. Conclusions SoAUiBang maintained the traditional Oriental medicine based on author's scholarly creativeness. In addition, it also inherited the lineage of medicine in Korea along with the pedigree of DongEuiBoGam. Therefore, SoAUiBang should be re-evaluated as a medicine book that opened a new field of pediatric and had great academic values.

족도리풀속의 1신종 : 연변족도리풀(Asarum yeonbyeonense M. Kim & S. So) (A New Species of Asarum: A. yeonbyeonense M. Kim & S. So)

  • 소순구;황용;이정희;김무열
    • 식물분류학회지
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    • 제40권4호
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    • pp.255-261
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    • 2010
  • 백두산 주변에서 족도리풀속의 1신종인 연변족도리풀(Asarum yeonbyeonense M. Kim & S. So)을 새로이 발견하여 기재하였다. 연변족도리풀은 엽병에 털이 있고 꽃받침 열편이 뒤로 젖혀져 서울족도리풀이나 만주족도리풀과 매우 유사하나, 꽃받침 열편이 두꺼우며 기부에 자색띠가 있어 뚜렷이 구별된다. 황록족도리풀 (A. sieboldii var. viridiluteolum Y. Lee)은 연변족도리풀과 아주 유사하나, 꽃받침 열편이 녹색이고 엽병에 털이 없어 학명은 A. yeonbyeonense var. viridiluteolum (Y. Lee) M. Kim & S. So로, 한글명은 녹연변족도리풀로 변경하였다.

만옹 서명서의 독서단계론 비교연구 (A comparative study on the reading process of So Myong-so)

  • 김상호
    • 한국도서관정보학회지
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    • 제22권
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    • pp.277-297
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    • 1995
  • Historical study on the reading in Choson has been mostly focussed on few scholar's viewpoint of reading. This research has revealed the reading process of So Myong-So, and has compared it with the reading process of other scholars. As a result of the research the following have been clarified. a. So Myong-so reorganized the reading process of Yuk Se-ui, divided it into the five steps, and made the systematic reading program. b. So Myong-so made the list of selected books which included not only confucian literature, but also taoist, buddhist, and practical. c. So's reading process and selected booklist were different in system and scale from other's : Im Sang-dok, Hwang Dok-gil, and Kang P'il-hyo.

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부부간의 사상체질 분포 (Study on the Sasang Constitutional Difference between Married Men & Women)

  • 김달래;김선형
    • 대한한의학회지
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    • 제30권4호
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    • pp.59-63
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    • 2009
  • Objective: This study examined the distribution of married couples' Sasang constitutions. Method: This study was researched clinically using medical records of 206 married couples who visited the Kyung Hee University East-West neo medical center in Seoul between May of 2006 and June of 2008. Results: 1. When a man is So-yangin, his wife's Sasang constitutional type is So-yangin 7.7%, Tae-eumin 53.8%, So-eumin 38.5%. A Tae-eumin wife is significantly more common than the other two groups. 2. When a man is Tae-eumin, his wife's Sasang constitutional type is Tae-yangin 0.9%, So-yangin 53.9%, Tae-eumin 8.7%, So-eumin 36.5%. Proportion of So-yangin wife is significantly higher than the other three groups. 3. When a man is So-eumin, his wife's Sasang constitutional type is So-yangin 61.5%, Tae-eumin 29.2%, So-eumin 9.2%. A So-yangin wife is found at a significantly higher rate than the other two groups. Conclusion: A So-yangin man is most likely to marry a Tae-eumin woman. A Tae-eumin man is most likely to marry a So-yangin woman. A So-eumin man is most likely to marry a So-yangin woman.

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문헌을 통해 살펴 본 정조의 사상체질 (The King Jeong-Jo's Sasang Constitution, Which wsa Based on the Annals of the Choson Dynasty(朝鮮王朝實錄), Hong Je jun Se(弘齋全書), GukSoBoGam(國朝寶鑑))

  • 김달래;김선형
    • 사상체질의학회지
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    • 제21권1호
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    • pp.44-52
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    • 2009
  • 1. Objectives Jeong-Jo's death has many mistery. So we understand rightly Jeong-Jo's death. we inspect closely medical records of 20 days before death(in The Annals of the Choson Dynasty(朝鮮王朝實錄), Hong Je Jun Se(弘齋全書), GukSoBoGam(國朝寶鑑). We understand medical treatment before death. It is based on Jeong-Jo's Constitution. So we trace the cause of a Jeong-Jo's death rightly. 2. Methods According to The Annals of the Choson Dynasty(朝鮮王朝實錄), Hong Je Jun Se(弘齋全書) GukSoBoGam(國朝寶鑑). We found out Jeoung-Jo's Sasang constitutional elemet. We point on Jeoung-Jo's nature and emotion, temperament and talent, features and way of speaking, physical appearance, healthy state, ordinary symptom, pathological syndromes and pharmacology. so documentary records was worthy of notice. 3. Results and conclusions 1. Jeong-Jo has prominent cheekbones,flat face. It belong to Tae-eum. 2. Jeong-Jo's physical appearance is mild,around,large. It belong ro Tae-eum. 3. Jeong-Jo's favorite food and herb were belong to Tae-eum interior febrile disease herb. which is Exhale Dispersing Qi 4. So even though Jeoung-Jo is Tae-eum, He had a weak body. It main cause that Smoking, insomnia, heave work, Hwa disease. 5. Jeong-Jo's is Interior febrile disease induced form the liver affected by heat in Tae-eumin

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3CaO.3A12O3.CaSO4.CaSO4.2H2O - Ca(OH)24 - 3CaO.Al2O3계의 수화 특성 (Hydration Properties of 3CaO.3A12O3.CaSO4.CaSO4ㆍ2H2O - Ca(OH)24 - 3CaO.Al2O3 System)

  • 배승훈;송종택
    • 한국세라믹학회지
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    • 제40권9호
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    • pp.859-866
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    • 2003
  • 칼슘설포알루미네이트계 팽창시멘트는 수화하여 ettringite, monosulfate 등의 수화물을 생성하여 경화체의 수축을 보삼함으로써, 균열 발생을 방지한다. 본 실험에서는 칼슘설포알루미네이트계 팽창시멘트의 수화특성을 규명하기 위하여 화학성법으로 3CaO.$3A1_2$$O_3$.$CaSO_4$($C_4$$A_3$S)을 제조하였으며, $C_4$$A_3$S-Ca(OH)$_2$-CaSO$_4$.2$H_2O$-C$_3$A계의 수화특성을 알아보았다. 화학성법에 의해 $1300^{\circ}C$에서 잘 발달한 $C_4$$A_3$S를 제조할 수 있었고, $C_4$A$_3$S-Ca(OH)$_2$-CaSO$_4$.2$H_{2}O$계의 주요수화 생성물은 ettringite이었으며, $C_4$A$_3$S-Ca(OH)$_2$-CaSO$_4$.$2H_2O$-C$_3$A는 수화초기에 ettringe를 생성하였다가 석고가 소비되면서 monosulfate로 전이하였다.

소현세자(昭顯世子)의 사인(死因)에 관한 고찰(考察) (The Research of the crown prince So-Hyeon's death cause)

  • 김훈
    • 대한한의학원전학회지
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    • 제19권3호
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    • pp.210-227
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    • 2006
  • Many historians presume that several kings included the crown prince were killed by poison in the Jo-Soon dynasty. Above all, there is every possibility of killing the crown prince So-Hyoon(昭顯) by poison. The crown prince So-Hyeon was detained for 8 years in Sim-Yang(瀋陽). He died suddenly in two month from coming home. According to an authentic record, official death causes were malaria. But there is little possibility that a young crown prince die of malaria at the age of 34. His dead body shows change of skin color and bleeding from the ear, eye, mouth, and nose. This is the sufficient evidence that he was killed by poison. King In-Jo have a doubt that he was ousted from his post by crown prince So-Hyeon in conspiracy with cheong imperial court. Especially, after the crown prince So-Hyeon's death, owing to cold attitude that king In-Jo shows and a tragic affair that occurred to the crown prince's family, king In-Jo is under suspicion as the mastermind of the murder. Another poisoners are Jo-So Yong(趙昭容) and Lee-Hyeong Ik(李聲益). Jo-So Yong, a royal harem, intrigue against the couple of crown prince So-Hyoon. Lee-Hyeong Ik that win king In-Jo's favor take charge of the medical treatment. We supposed that toxic substance is arsenic poison.

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