• Journal of the Korean Mathematical Society
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• v.43 no.2
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• pp.399-411
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• 2006

Let L be a subspace lattice on a Hilbert space H and X and Y be operators acting on a Hilbert space H. Let P be the projection onto $\frac\;{R(X)}$, where RX is the range of X. If PE = EP for each $E\;\in\;L$, then there exists an operator A in AlgL such that AX = Y if and only if $$sup\{{\parallel}E^{\bot}Yf{\parallel}/{\parallel}E^{\bot}Xf{\parallel}\;:\;f{\in}H,\; E{\in}L}=K\;<\;\infty$$ Moreover, if the necessary condition holds, then we may choose an operator A such that AX = Y and ${\parallel}A{\parallel} = K.$ Let x and y be vectors in H and let $P_x$ be the projection onto the singlely generated space by x. If $P_xE = EP_x$ for each $E\inL$, then the assertion that there exists an operator A in AlgL such that Ax = y is equivalent to the condition $$K_0\;:\;=\;sup\{{\parallel}E^{\bot}y{\parallel}/{\parallel}E^{\bot}x\;:\;E{\in}L}=<\;\infty$$ Moreover, we may choose an operator A such that ${\parallel}A{\parallel} = K_0$ whose norm is $K_0$ under this case.

• Journal of Korean Medical classics
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• v.23 no.4
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• pp.1-11
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• 2010

"Gyeongbangsilheomrok(經方實驗錄)" is a book that was written for the propagation of the thought of Gyeongbang(經方) theory in the early 20th century. Gyeongbang means the medicine in "Sanghanron(傷寒雜病論)" which was written by Jangjonggyeong(張仲景), who is known as a great doctor of ancient times in China. Gyeongbang had worked as a good model of medicine for a long time, but as time goes by, there appeared some physicians pointing out the limit of Gyeongbang and trying to overcome it. Through the effort like this, there gradually had appeared so many physicians carrying out the medical treatment which was getting out of the boundary of Gyeongbang. And There also had appeared a group of physicians, called Gyeongbangpa(經方派), opposing the opinion like this and defending the academic value of Gyeongbang. "Gyeongbangsilheomrok" had been estimated as a meaningful achievement of Gyeongbangpa tradition, and also had been regarded as a good book comprising copious basic theory about Bangje(方劑). The most significant assertion in this book is that it explained the Onbyeong(溫病) theory as a component itself in "Sanghanron(傷寒論)", which had been argued by many other medicians thinking that "Sanghanron" did not cover the treatment of Onbyeong. In regarding to this problem, "Gyeongbangsilheomrok" argued that the concept of Onbyeong in "Sanghanron" belongs to the category of Taeyangbyeong(太陽病) and also suggested that Galgeuntang(葛根湯) would be the main recipe for Onbyeong.

• Journal of Information Processing Systems
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• v.3 no.2
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• pp.82-88
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• 2007

Web services are the new building block of today's Internet, and provides interoperability among heterogeneous distributed systems. Recently in web services environment, security has become one of the most critical issues. The hackers attack one of fragile point and can misuse legitimate user privilege because all of the connected devices provide services for the user control and monitoring in real time. Also, the users of web services must temporarily delegate some or all of their rights to agents in order to perform actions on their behalf. This fact risks the exposure of user privacy information. In this paper, we propose secure delegation model based on SAML that provides confidentiality and integrity about the user information in distributed systems. In order to support privacy protection, service confidentiality, and assertion integrity, encryption and a digital signature mechanism is deployed. We build web service management server based on XACML, in order to manage services and policies of web service providers.

• Tuberculosis and Respiratory Diseases
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• v.70 no.6
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• pp.482-489
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• 2011

Background: Based on the assertion that apocynin diminishes acute lung injury (ALI) by inhibition of NADPH oxidase, the effect of apocynin was tested in interleukin-$1{\alpha}$ (IL-1)-induced ALI in rats. Methods: IL-1 was insufflated into the trachea of Sprague-Dawley rats to induce ALI, and apocynin (8 mg/kg) was given intravenously for inhibition of NADPH oxidase. In addition, we determined whether apocynin inhibited generation of superoxide anions from isolated human neutrophils. Five hours after IL-1 instillation, lung injury parameters, expression of cytosolic phospholipase A2 (cPLA2) by cells from bronchoalveolar lavage (BAL), an index of oxidative stress in lung tissues (${\gamma}$-glutamyltranspeptidase, activity), and ultrastructure of alveolar type II (AT II) cells were evaluated. Results: Apocynin decreased the generation of free radicals from phorbol myristate (PMA)-activated neutrophils in vitro, but did not ameliorate ALI. IL-1 induced enhancement of the expression of cPLA2 on neutrophils was not altered by apocynin. Conclusion: Apocynin induced suppression of the generation of superoxide anions from neutrophils by inhibition of NADPH oxidase does not attenuate IL-1-induced ALI in rats.

• Speech Sciences
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• v.10 no.2
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• pp.319-338
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• 2003

The aim of this paper is to examine the sentence final tonal patterns of English wh-questions through phonetic experiments, based on Intonational Phonology, and to explain the meaning of the final phrase tones of English wh-questions. Pierrehumbert and Hirschberg (1990) suggested that it is pitch accents rather than boundary tones which play a crucial role in the meaning of a sentence, and that most of the general questions have H-H% tonal patterns in the sentence final. However, they could not explain why wh-questions had final falling tonal patterns (L-L%). While Bartels (1999) suggested that L phrase tone has the meaning of 'ASSERTION' and it could be applied to the explanation of the meaning of wh-questions' final tonal patterns. However, her suggestions are only theoretical explanation without any experimental support. In this paper, based on Bartels (1999), the data was classified into the following three classes: 1) echo wh-questions, 2) reference questions, and 3) common wh-questions. Using this data, a production test by three English native speakers was conducted. The results show that reference questions and common wh-questions have L phrase tones in the sentence final at a high rate, and echo wh-questions have H phrase tones in the sentence final at a high rate.

• Korean journal of communication and information
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• v.70
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• pp.165-188
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• 2015

This paper deals with the questions: Are media user's activities labour? Or rent? These questions have provoked a debate in the critical media studies and Marx's theory. But it is not a matter of choosing either labour or rent. Even if user's activities could contribute to valorization, it needs some mediating process. Media Platforms-Google, Facebook, etc.-play a key role, and have to employ other forms of labour. Labour in media platform produces some capital commodities. In view of media platform, Smythe's audience commodity can be considered as capital commodity. Assertion in this paper expected to provoke new debate on media platforms and its labourer.

• Korean Journal of Child Studies
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• v.36 no.2
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• pp.1-16
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• 2015

The purpose of this study is to investigate the effects of father's play beliefs on father-child interaction and child's social skills. The subjects were 370 fathers of 1, 2 and 3 graders of elementary schools who lived in Seoul and Gyeonggi area. The results were as follows; First, the differences were found to be significant between the whole of father's play hours, play focus beliefs, study focus beliefs and father-child interaction, and their sub-variables of disciplinary action, sensitiveness, and affectionate expression; and between the whole of child's social skills and its sub-variables of cooperative action, self-assertion and self-control. Second, the higher play focus beliefs, the more positive interaction on the child, and specifically they use much democratic disciplinary action, sensitiveness and affectionate expression. Third, as to the effect of the father's play focus beliefs on the child's social skills, father-child interaction was found to act as a partial parameter, while as to the effect of the father's study focus beliefs on the child's social skills, father-child interaction was found to act as a full parameter.

• English Language & Literature Teaching
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• v.12 no.4
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• pp.277-290
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• 2006

This study is to find out the meaning of the death in Donne's "Holy Sonnets" and divine poems. Death issue is the important theme and is used frequently in his poems. He expresses an assertion of faith about the defeat of death and wishes to gain new birth and eternal life through death. Ironically death must be died for rebirth and an inevitable death. Death is another way to get new life and return to Christ. Many readers think that "Hymn to God my god, in my sickness" is Donne's most distinguished achievement in his divine poems. The poem shows that death must be accepted willingly because it is only through death that man can reach heavenly bliss and gain new life. He develops an antithetic parallel between two hills and two trees. Paradise and Adam's tree which brought death into the world are related analogically to Calvary and the Cross, which brought resurrection and eternal life. Death and resurrection are shown to be conjoined in the poem. To sum up, Donne tried to pursuit death for rebirth and modeled after Christ's death and Resurrection.

• 한국전산유체공학회:학술대회논문집
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• 2006.10a
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• pp.167-176
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• 2006

In this paper we show that solutions of the nonlinear Nernst-Planck equation possesses the quadruple-layer structure near the interface when the electrolyte receives a high frequency forcing such as a high-frequency alternating current. Very near to the interface wall, the well-known, classical Stern layer exists. Near to the Stern layer we have the secondly thin layer (to be called inner layer in this paper) where the ion concentrations behave under the same frequency as the external forcing. However, in this layer, the positive and negative ion concentrations develop with the time phase 180-degree different from each other. Next to this second layer, we have the third layer (called middle layer) in which two ion concentrations change with the time period double the forcing, and both concentrations behave in the same time phase. In the outermost layer, i.e. the forth layer, (called outer layer) the ion concentrations show the same-phase development as the third one but decaying very slowly in time. Our assertion is mostly based on the 1-D numerical simulation for the Nernst-Planck equation under a high frequency AC field assuming that the quadruple layer is very thin compared with the length scale representative of the bulk region.

• Journal of the Korean Society for Library and Information Science
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• v.27
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• pp.229-263
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• 1994

The main objective of this article lies in discussing dependecy issues as related to information development in NICs. The theoretical foundation was drawn from theories of 'dependency' and of 'information societies,' The main assertion of the dependency school (the more dependency, the less development) was applied for a test of the relationship between dependency on foreign scientific and technical information (STI) resources and indigenous STI development in NICs. Utilizing a case study method, this study explored the causes and results of dependency on foreign STI in a leading NIC­the Republic of Korea (ROK). First identified were the economic factors that might have influenced the ROK's dependency on foreign STI. Also investigated were the social factors that might have had associations with the R&D personnel's dependency on foreign STI. Regarding the development of information area, this study discussed general features in the process of producing, organizng, and gatekeeping indigenous STIIdentified regarding the ROK's information dependency was the R&D personnel's pattern of using foreign STI resources as well as the country's dependency on foreign STI resources. This study also discussed the socio-economic progress toward an information society in ROK for the past decades. Finally, specific linkages between the selected five variables were examined on the basis of the proposed four hypotheses.