• Vacuum Magazine
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• v.1 no.1
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• pp.11-16
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• 2014

A variety of metal vacuum systems displays the celebrated 1/t pressure, namely, power-law dependence on time t, with the exponent close to unity, as to the origin of which there has been long-standing controversy. Here we propose a chemisorption model for water adsorbates, based on the argument for 2D fermion behavior of water adsorbed on a metal surface, and obtain analytically the power-law behavior of pressure with an exponent unity. Further, the model predicts that the pressure should depend on the temperature T according to $T^{1.5}$, which is indeed confirmed by our experiment.

• Journal of Animal Environmental Science
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• v.1 no.2
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• pp.155-164
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• 1995

Despite considerable progresses made in our understanding of environmental fate of pollutants stemming from animal production systems, relatively little is known about the processes and mechanisms regulating their dispersement (via emission) into and deposition from the earth's atmospheric system. Here we present and summarize up-to-date knowledge on this topic with a main emphasis on their origin, physico-chemical characteristics, and geochemical distribution behavior.

• Journal of Microbiology and Biotechnology
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• v.5 no.6
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• pp.370-372
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• 1995

A Phaffia rhodozyma chromosomal fragment (approximately 3.8 kb) capable of functioning as an origin for the replication of a kanamycin resistance ($Km^r$) plasmid in S. cerevisiae was isolated by the use of origin search plasmid, pHN134. In S. cerevisiae, transformation frequencies using the plasmid pHN134 containing an autonomously replicating sequence of P. rhodozyma was 450-580 CFU/$\mu g$ DNA. The stability of the recombinant plasmid were 16-19$\%$.

• Journal of Chest Surgery
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• v.47 no.1
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• pp.32-34
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• 2014

Anomalous aortic origin of the left subclavian artery (LSCA) from the left pulmonary artery (LPA) is a rare congenital cardiac malformation. We describe a case of LSCA from the LPA via ductus arteriosus in association with a double-outlet right ventricle, which never has been reported previously in Korea.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.1708-1727
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• 2009

Even though we usually analyze logistic market based on confined railway logistics, but this study would like to judge what is potential demand transferable to railway goods through accurate analysis of railway sharing rates by the analysis of origin and destination of each item in total freight transportation market. Accordingly, by analyzing each items transferable to railway, excluding items stuck to original market, this study wants to choose some major items which are expected to lasting demand and activate railway logistics plan by focusing on major items for marketing strategy.

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.270.2-270.2
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• 2003

Korean folk medicine ‘Bong Seon Wha Dai’ has been used to cure constipation and acute gastritis by meat. The botanical origin of the crude drug has never been studied pharmacogostically. To clarify the botanical origin of Bong Seon Wha Dai. the morphological and anatomical characteristics of Impatiens species growing in Korea, i.e. I. balsamina L., I. noli-tangere L.. I. textori Miq., I. textori Miq. forma. pallenscens Hara were studied. (omitted)

• Journal of the Speleological Society of Korea
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• no.62
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• pp.91-96
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• 2004

• Journal of the Korean Society of Food Culture
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• v.23 no.6
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• pp.720-728
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• 2008

The objective of this article is to examine Korean consumers' perception level of the country-of-origin of brand (COB) of global restaurant franchises. Although global brands have rushed onto the Korean food service market since 1980, there has been little or no research conducted regarding consumers' perception of COB of global restaurant franchises. In this study, we surveyed consumers to determine their perception of COB for 27 foreign global restaurant brands; specifically, we attempted to determine whether or not Korean consumers could correctly recognize the COB of each brand. The results of this research revealed that Korean consumers correctly perceived the COB of certain restaurant brands, and incorrectly perceived some other brands. For instance, Korean consumers' perception level of the COB of McDonald's and KFC were quite high, and conversely their perceptions of the COB of Outback Steakhouse and Pohoa were relatively low. When consumers select a restaurant brand, COB image was shown to be more influential than brand image.

• Korean Journal of Pharmacognosy
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• v.47 no.2
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• pp.128-136
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• 2016

Tiny leaf fragments were found in the Annals of the Joseon Dynasty, which were compiled about 500 years ago. The records describing the detailed process of compiling the Annals indicate that silk bags packed with the powders of 'Cheongung' and 'Changpo', which have been used as traditional herbal medicines in the northeast Asian countries such as China and Japan as well as Korea, were put in the wooden storage boxes together with the volumes of the Annals. However, there is no record that parts of plants were used in the process of compiling the Annals. The botanical origin of leaf fragments was identified as Ligusticum sinense 'Chuanxiong' by the analysis of trnK of chloroplast DNA as well as the examination of leaf surface with SEM. The comparative analysis of trnK sequences showed that the chloroplast DNA haplotype of 'Tocheongung', a triploid species cultivated in Korea, was identical with Cnidium officinale, but different from L. sinense 'Chuanxiong'. The molecular results provide a new suggestion on the botanical origin of crude drugs used as 'Cheongung', which has been disputed in Korea.

• Journal of Sasang Constitutional Medicine
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• v.28 no.2
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• pp.103-109
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• 2016

Objectives This paper investigates the origin, the progressive changes and the constructive principles of Jeoryoungchajeonja-tang(猪苓車前子湯).Methods Jeoryoungchajeonja-tang and other related prescriptions were analyzed in terms of their pathological indications, based on previous literature including 『Sanghannon(傷寒論)』, 『Keumkuaeyoryak(金匱要略)』, 『Donguibogam(東醫寶鑑)』, 『Donguisusebowon‧Sasangchobongwon(東醫壽世保元‧四象草本卷)』, 『Donguisusebowon‧Gabogubon(東醫壽世保元‧甲午舊本)』, 『Donguisusebowon‧Sinchukbon(東醫壽世保元‧辛丑本)』Results and Conclusions 1) The origin of Jeoryoungchajeonja-tang is discovered in the prescriptions for Lee-su(利水), that is, Jeoryoung-tang(猪苓湯). 2) Ohryoung-san(五苓散) introduced in 『Donguisusebowon‧Sasangchobongwon(東醫壽世保元‧四象草本卷)』progressively transformed into Shihosaryoung-san(柴胡四苓散)(『Donguisusebowon‧Gabogubon(東醫壽世保元 ‧甲午舊本)』) and ultimately into Jeoryoungchajeonja-tang(『Donguisusebowon‧Sinchukbon(東醫壽世保元‧辛丑本)』), a prescription appropriate for usage in the Mangeum symptomatology(亡陰證). 3) The Jeoryoungchajeonja-tang is composed of 10 herbs. Of these, Notopterygium incisum Ting(羌活), Aralia cordata Thunb.(獨活), Schizonepeta tenuifolia Briq.(荊芥), Saposhnikovia divaricata Schischk.(防風) make the Pyoeum(表陰) drop, and Anemarrhena asphodeloides Bge.(知母), Gypsum fibrosum(石膏) scatter the uihwa(胃火), and Poria cocos Wolf.(茯苓), Alisma canaliculatum(澤瀉), Polyporus umbellatus Fr.(猪苓), Plantago asiatica L.(車前子) facilitate urination.