• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.4
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• pp.692-700
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• 2012

The WiMedia Alliance has specified a Distributed Medium Access Control (D-MAC) protocol based on UWB for high speed wireless home networks and Wireless USB. In this paper, firstly, the fair SoQ-based Distributed Reservation Protocol (DRP) for D-MAC is analyzed. And a novel SoQ-based relay transmission protocol is proposed to overcome DRP conflicts fast. In the proposed protocol, each device executes the Satisfaction of QoS (SoQ) time slot allocation algorithm independently. And, in order to give the loser device due to DRP conflicts another chance to maintain QoS resources, the proposed relay transmission protocol helps the device reserve another indirect link maintaining the required QoS resources via a relay node.

• Journal of the Korean Chemical Society
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• v.45 no.1
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• pp.7-13
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• 2001

The interaction of benzenesulfonate anion and its derivatives ($C_6H_5SO_3^-, p-$CH_3C_6H_4SO_3^-, and $p-C_2H_5C_6H_4SO_3^-$) with the micellar system of cationic surfactant TTAB(tetradecyltrimethylammonium bromide) was studied by UV/Vis spectrophotometric method. The solubilization constants($K_s$) of benzenesulfonate anions into the micellar phase of this surfactant have been measured with the change of temperature. The effects of additives(n-pentanol and NaBr) on the solubilization of benzenesulfonate anions by this surfactant system have been also measured. There was a great decrease on the values of $K_s$ and CMC simultaneously with these additives so that the measured values of ln$K_s$ were linear relationships with the values of lnCMC. For the thermodynamic study, various thermodynamic parameters(${\Delta}G^0_s$, ${\Delta}H^0_s$ and ${\Delta}S^0_s$) have been calculated and analyzed from the dependence of Ks values on temperature.

• Journal of The Korean Society of Grassland and Forage Science
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• v.29 no.2
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• pp.95-102
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• 2009

To determine $SO_4^{2-}$ uptake and its assimilation in response to the exogenous $SO_4^{2-}$supply level in forage rape (Brassica napus L.), the concentration of this element in plant tissues and the activity of ATP sulfurylasc and APS reductase was measured after 25 hours of treatment (1.0 mM $SO_4^{2-}$, control; 0.1 mM $SO_4^{2-}$, S deficiency; 0 mM $SO_4^{2-}$, S deprivation). $SO_4^{2-}$ uptake and the concentration in the plant tissues significantly decreased in S-deficient and S-deprived condition, while it maintained at nearly same level in the control. The activity of ATP sulfurylase tended to increase with decreasing the exogenous $SO_4^{2-}$ supply, while that of APS reductase to decrease. A significant change in both enzymes responding to S-deprivation treatment was observed only young and middle leaves. The results indicated that $SO_4^{2-}$ assimilation in young leaf tissues would be much more sensitively responded to S-limited nutrition.

• The Journal of Pediatrics of Korean Medicine
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• v.24 no.1
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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.

• Korean Journal of Plant Taxonomy
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• v.40 no.4
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• pp.255-261
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• 2010

A new species, Asarum yeonbyeonense M. Kim & S. So, is named and described from Mt. Baekdu in Korea. This new species is distinctly different from the related species A. mandshuricum (Maxim.) M. Kim & S. So according to the purple band at the base of the calyx lobes and the thick calyx lobes. In addition, Asarum sieboldii var. viridiluteolum Y. Lee is closely related to A. yeonbyeonense M. Kim & S. So due to its reflexed calyx lobes; however, this variety has green calyx lobes and pubescent petioles. Therefore its scientific name was changed to Asarum yeonbyeonense var. viridiluteolum (Y. Lee) M. Kim & S. So, and its Korean name should be changed into Nokyeonbyeon-Jokdoripul.

• Journal of Korean Library and Information Science Society
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• v.22
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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.

• The Journal of Korean Medicine
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• v.30 no.4
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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.

• Journal of Sasang Constitutional Medicine
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• v.21 no.1
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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

• Journal of the Korean Ceramic Society
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• v.40 no.9
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• pp.859-866
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• 2003

When calcium sulfoaluminate-based expansive cement was hydrated, ettringite and monosulfate were mainly formed. The crack of hardened cement was prevented by compensating drying shrinkage due to formation of the above hydrates. In order to study the hydration properties of calcium sulfoaluminate-based expanding cement, 3CaOㆍ3Al$_2$O$_3$ㆍCaSO$_4$(C$_4$A$_3$S) was prepared by chemical synthesis, and then the hydration of $C_4$A$_3$S-Ca(OH)$_2$-CaSO$_4$.$2H_2O$-C$_3$A system_was characterized. Good $C_4$A$_3$S phase was prepared at $1300^{\circ}C$ by chemical synthesis, and the main hydration product of $C_4$A$_3$S-Ca(OH)$_2$-CaSO$_4$.2$H_2O$ system was ettringite. In the case of hydration $C_4$A$_3$S-Ca(OH)$_2$-CaSO$_4$ㆍ 2$H_2O$-C$_3$A system, ettringite was formed in the early period and it was transformed into monosulfate while consumed gypsum.

• Journal of Korean Medical classics
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• v.19 no.3
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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.