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The Base-Catalysed Carbonato or Oxalato Ring Opening of $cis-{\beta}-$$[Co(3,2,3-tet)(CO_3 or C_2O_4)]^+$ (3,2,3-tet=4,7-diazadecane-1,10-diamine) (염기성 촉매에 의한 $cis-{\beta}-$$[Co(3,2,3-tet)(CO_3 or C_2O_4)]^+$ (3,2,3-tet=4,7-diazadecane-1,10-diamine)에 대한 Carbonato 혹은 Oxalato 리간드의 고리열림 반응)

  • Yoon, Doo Cheon;Oh, Chang Eon;Kim, Bok Jo;Doh, Myung Ki
    • Journal of the Korean Chemical Society
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    • v.40 no.7
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    • pp.501-508
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    • 1996
  • The base-catalysed carbonato or oxalato ring opening of cis-${\beta}-[Co(3,2,3,-tet))CO_3\;or\;C_2O_4)]^+$(3,2,3-tet=4,7-diazadecane-1,10-diamine, $C_2O_4$=oxalate) has been investigated in aqueous solution and in mixed aqueous-organic solvent. The rearrangement of 3,2,3-tet and carbonato or oxalato ring opening of cis-${\beta}-[Co(3,2,3,-tet))CO_3\;or\;C_2O_4)]^+$ occurred via the dissociation of one of the two coordinating carbonato or oxalato oxygen atoms. The resulting product was cis-${\alpha}-[Co(3,2,3-tet)(OH)(OCO_2\;or\;OC_2O_3)_3].$ It has been suggested that the base-catalysed reaction of cis-${\beta}-[Co(3,2,3,-tet))CO_3\;or\;C_2O_4)]^+$ takes place via the Dcb(dissociative conjugated base) mechanism. The other oxygen atom of carbonato or oxalato was dissociated continuously to give cis-${\alpha}-[Co(3,2,3-tet)(OH)_2]^+.$ Cis-${\alpha}-[Co(3,2,3-tet)(OH)_2]^+$ was isomerized to cis-${\beta}-[Co(3,2,3-tet)(OH)_2]^+.$

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Synthesis and Characterization of Vanadium(III) Complexes with N-Donating Ligands (질소 주개 리간드를 갖는 바나듐(III) 착물의 합성과 특성)

  • Sang-Oh Oh;Eun-Young Lyou
    • Journal of the Korean Chemical Society
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    • v.36 no.6
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    • pp.872-878
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    • 1992
  • Some vanadium(III) complexes have been prepared by the reaction of VCl3${\cdot}$3MeCN with ligands and characterized by elemental analysis, 1H-NMR, infrared and UV-Visible spectroscopy. 3,5-lutidine(lutd), 8-hydroxyquinoline(oxine), 1,2-phenylenediamine(phda), ethylenediamine(en), and sym-diphenylethylenediamine(dpen) were chosen as coordinating ligands. ${\nu}$(V-Cl) of lutidine complex occurs at 418 $cm^{-1}$ and the other complexes (oxine, phda, en, dpen) occur at 337∼347 $cm^{-1}$. The value of ${\nu}$(V-Cl) indicates that the former complex has trigonal bipyramid structure and the latter complexes have octahedral structure. The ${\nu}$(C${\equiv}$N) of acetonitrile in oxine and phda complexes are characteristically shifted to about 70 $cm^{-1}$ higher frequency compared with that of free ligand (2260 $cm^{-1}$). The ${\delta}$(C${\equiv}$N) is also shifted to about 60 $cm^{-1}$ higher frequency compared with that of free ligand (377 $cm^{-1}$). Finally each vanadium(III) complex showed the following formulation; [$VCl_3(lutd)_2$], [$VCl(oxine)_2$MeCN]$Cl_2$, [$VCl(phda)_2$MeCN]$Cl_2$, [$VCl_2(en)_2$]Cl, [$VCl_2(dpen)_2$]Cl.

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A Study on the Androgynous Phenomena in Contemporary Fashion from the Feminist's Viewpoint (페미니즘적 시각에서 본 현대복식의 앤드로지너스 현상에 관한 연구)

  • 김혜연
    • Journal of the Korean Society of Costume
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    • v.43
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    • pp.203-224
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    • 1999
  • As androgny presented by feminism still appear in contemporary fashion since mid 1980's feminism as a social phenomenon can be considered to habe influenced fashion history. This paper surveys the sex images of androgynous look that appeared in contemporary fashion into bisexual image and neutral images based on the feminist aspects of changes in contemporary fashion. As stated above bisexual images and neutral images of androgynous look shown in clothing are an attempt to reach one single integrated complete being by overacoming 'femininity' or 'masculinity' and combining the element of the two sexes. Consequently androgynous look creates new attraction by harmoniously coordinating characteristics of the two sexes instead of totally differentiating between masculinity and femininity that are represented in the form of clothing that has conceptual visual characteristics. Following are the conclusions of the reseach of this paper. First 'androgynous' as a feminist sex concept reflects the spirit of the times. Since the sex roles are divided and diversified and the concept of femininity is changing the concept of androgyny requiring both masculine and feminine characteristics in an essential sex concept for sucessful conduct of roles in a complex modern society. Second the integrated human image of androgynous look has led to a new culture with fashion trends that has been ahead of times by curing the functions of fashion to differentiate between men and women. Third androgynous look at the turn-of-the-centuy will not cease to exist but be a lasting fashion phenomenon while the sex concept presented by feminism has become the core to destrov the dichotomous fashion style of the 20th century. Fourth androgynous look is expressed in various manners in contemporary fashion since it shown how human beings accipt the adaptation method desperately required by the contemporary times. Androgynous look can be viewd as the desire for ultimate freedom that can be acquired by destroying the dichotomous sex concept and as the will to become a subject of the world as integrated human being. As we look into fashion culture creation of fashion is not the result of an accidental cause or an individual's work but the reflection of the spirit of the times. In this sense androgynous look introduced by a new sex concept to contemporary fashion has reflected the spirit of the times and led the cultural atmosphere and moreover it is an important fashion style that can characterize the contemporary times while lasting in the future.

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A Study on the Mediation and Arbitration of Lease Dispute (임대차 분쟁의 조정과 중재에 관한 연구)

  • Nam, Seon-Mo
    • Journal of Arbitration Studies
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    • v.25 no.4
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    • pp.119-136
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    • 2015
  • The contracting parties must be provided a litigation scheme in order to resolve a dispute. This means taking advantage of effective measures for mediation or arbitration. A lease transaction is likely to occur mainly after a dispute. It is necessary to take the appropriate measures in advance. In general, when a variety of contracts are created, conflicts arise and disputes have to be resolved through mediation and arbitration documents, and adjustment or intervention is called for. Arbitration system is a system that is established based on the trust of the arbitral tribunal. For such system, quality education for enhancing professionalism required of the arbitrator is important. A party responding to an arbitration agreement presents a problem. The current system must ensure that there are no disadvantaged parties. However, a party must depend on an arbitration agreement that is part of the law rescue system. A litigation support by the local Bar Association must be carried out. It should be notified of the contents of the contract to select a strategy that will best resolve the conflict. In the case of lease transactions, there is a need to create a scheme to make a standard agreement that inserts an arbitration clause. Lease sale and purchase agreement or lease agreement is a form of contract that has been frequently used. Here, the arbitration agreement clause for a lawyer that will serve as arbitrator should be inserted. It is a scheme that can be activated for individuals in poor areas. In addition, it is possible to see it taking a scheme to take advantage of the lawyer system for the future of the town. The Attorney System of a town is a system that the Korean Bar Association, Legal Department has put in place since 2013. If a real estate trade dispute occurs, the role of the intermediary attorney should be to carry out his duties efficiently. In the case of real estate transaction conflicts, the lawyer of the village should be registered as the arbitrator. It is important to establish a basis of regulations through this type of real estate transaction accident analysis. Before proceeding with various adjustment systems, it is desirable to expand the arbitration region. Now we need a realtor amendment. It is the part where fragmentation of intermediary qualification is required, along with the eligibility of a subdivision.

Synthesis, Spectral and Thermal Studies of Lanthanide(III) Complexes of Phenylbutazone (Phenylbutazone의 란탄(III) 착물에 대한 합성, 스펙트럼 및 열적 연구)

  • Anoop, M.R.;Binil, P.S.;Jisha, K.R.;Suma, S.;Sudarsanakumar, M.R.
    • Journal of the Korean Chemical Society
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    • v.55 no.4
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    • pp.612-619
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    • 2011
  • Lanthanide(III) complexes of 1,2-diphenyl-4-butyl-3,5-pyrazolidinedione(phenylbutazone, PB) have been synthesized and characterized by elemental analyses, molar conductance measurements, IR, UV-Vis. and NMR spectra. The spectral data reveal that the PB acts as a bidentate and mono-ionic ligand coordinating through both the carbonyl oxygens of the pyrazolidinedione ring. The molar conductance data suggest that the complexes are non-electrolytes. The thermal behaviour of the complexes was studied by TG and DTG in air atmosphere and the results provide information about dehydration, thermal stability and thermal decomposition. The final products are found to be the corresponding metal oxides. The thermodynamic parameters and kinetic parameters were evaluated for the dehydration and decomposition stages. The negative entropy values of the decomposition stages indicate that the activated complexes have a more ordered structure than the reactants and that the reactions are slower than normal. Based on these studies, the complexes have been formulated as $[Ln(PB)_3]{\cdot}5H_2O$(Ln=La and Ce) and $[Ln(PB)_3(H_2O)_2]{\cdot}2H_2O$(Ln=Pr, Nd and Sm).

Synthesis and Characterization of Vanadium(Ⅲ) Complexes with N, P, O-donating Ligands(Ⅱ) (질소, 산소, 인 주개 리간드를 갖는 바나듐(Ⅲ) 착물의 합성과 특성 (제 2 보))

  • Oh Sang-Oh;Lyou Eun-Young
    • Journal of the Korean Chemical Society
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    • v.37 no.6
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    • pp.612-617
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    • 1993
  • Some vanadium(III) complexes have been prepared from the reaction of VC$l_3$ with N, P, O-donating ligands and characterized by elemental analysis, $^1$H-NMR infrared and UV-Visible spectroscopy. 3,5-Lutidine, 1,2-phenylenediamine, 8-hydroxyquinoline, 9,10-phenanthrenequinone, triphenylphosphine, 1,2-bis(diphenylphosphino)ethane, 1,3-bis(diphenylphosphino)propane and 1,1'-bis(diphenylphosphino)ferrocene were chosen as coordinating ligands. Stretching frequency ${\nu}g$(V-Cl) of complexes appears) at 298∼367 cm-1, which show octahedral geometries. Stretching frequency of ${\nu}g$(V-X) (X = N, P, O) indicates that ligands are coordinated to vanadium(III). Stretching frequency ${\nu}g(C{\equiv}N)$ of acetonitrile in these complexes are characteristically shifted to about 70 c$m^{-1}$ higher compared with that of a free ligand (2260 c$m^{-1}$). Bending frequency of $\delta(C{\equiv}N)$ is also shifted to about 60 c$m^{-1}$ higher compared with that of a free ligand (377 c$m^{-1}$). Finally each vanadium(III) complex showed the following formulation; [VC$l_3$(L)$_2$MeCN] or [VC$l_3$(L-L)MeCN].

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Improvement Directions of Regional Science and Technology Policies in the Context of Creative Economy Paradigm: the case of Daegu and Gyungbuk regions (창조경제 패러다임에서의 지방과학기술정책의 개선방향: 대구.경북의 사례를 중심으로)

  • Kim, Taewoon
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.1
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    • pp.45-68
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    • 2014
  • This research addressed improvement directions and problems of regional science and technology(S&T) policies in Daegu and Gyungbuk regions in terms of 'Creative Economy' which was a new paradigm of Park Gunhye Government. Creative Economy stressed the construction of an ecosystem in regional research and development activities, and thus it was deeply associated with building a regional innovation system(RIS). There were several problems to strengthen RIS with regional S&T policies of the regions as follows: limits in meeting regional needs due to excessive attraction of central government's projects into regions; the high ratio of programs for future basic research potentials; the lack of programs assessing and coordinating the policies; and the lack of experiences and expenditure of research institutes and firm supporting organizations. Due to these problems, the role of the policies in building RIS did not seem to be effective. Therefore, the policies need to be improved through the following measures: the expansion of regional own policies focusing regional needs; the enhancement of policy coordination by shifting to systematic approach; the expansion of soft supporting programs for constructing innovation systems; and the enhancement of stability and ability of research institutes and firm supporting organizations.

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Implementation of A Multiple-agent System for Conference Calling (회의 소집을 위한 다중 에이전트 시스템의 구현)

  • 유재홍;노승진;성미영
    • Journal of Intelligence and Information Systems
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    • v.8 no.2
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    • pp.205-227
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    • 2002
  • Our study is focused on a multiple-agent system to provide efficient collaborative work by automating the conference calling process with the help of intelligent agents. Automating the meeting scheduling requires a careful consideration of the individual official schedule as well as the privacy and personal preferences. Therefore, the automation of conference calling needs the distributed processing task where a separate calendar management process is associated for increasing the reliability and inherent parallelism. This paper describes in detail the design and implementation issues of a multiple-agent system for conference calling that allows the convener and participants to minimize their efforts in creating a meeting. Our system is based on the client-sewer model. In the sewer side, a scheduling agent, a negotiating agent, a personal information managing agent, a group information managing agent, a session managing agent, and a coordinating agent are operating. In the client side, an interface agent, a media agent, and a collaborating agent are operating. Agents use a standardized knowledge manipulation language to communicate amongst themselves. Communicating through a standardized knowledge manipulation language allows the system to overcome heterogeneity which is one of the most important problems in communication among agents for distributed collaborative computing. The agents of our system propose the dates on which as many participants as possible are available to attend the conference using the forward chaining algorithm and the back propagation network algorithm.

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Issues on Sustainable Development in the Lower Tumen River, Southwest Primorskii Krai of the Russian Federation (러시아 연해주 남서 지역 두만강 하류의 지속 가능한 개발 문제)

  • P. Ya. Baklanov;K. S. Lee;V. V. Ermoshin;S. S. Ganzei;O. H. Lee;H. S. Choe;J. S. Ahn
    • Journal of the Korean Geographical Society
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    • v.39 no.2
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    • pp.229-240
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    • 2004
  • This article aimed to suggest a program for environmental protection and sustainable development in southwest Primorskii Krai of the Russian federation by analysis of Natural conditions, natural resources and current economic activities. Issues relating to protecting unique biodiversity toward economic development are examined. Special attention is given to functional zoning of the Russian part of lower Tumen River drainage. Functional zoning is key to protecting the unique biodiversity found in wet and marshlands of the lower Tumen River. Recommendations for acceptable economic activity are provided. The major components for a Sustainable Development Program in this area are: to define economically effective and ecologically acceptable types of regional activity (aquaculture; deer farming; recreation) and effective forms of territorial organization; to determine the restrictions on regional industrial and economic development; to organize rational regional land use by carrying out functional zoning and by coordinating this activity with all land users, including restructuring existing protected territories into a single system and include it into an international biospheric network.

Application and Evaluation of a Traffic Signal Control Algorithm based on Travel Time Information for Coordinated Arterials (연동교차로를 위한 통행시간기반 신호제어 알고리즘의 현장 적용 및 평가)

  • Jeong, Yeong-Je;Kim, Yeong-Chan
    • Journal of Korean Society of Transportation
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    • v.27 no.5
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    • pp.179-187
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    • 2009
  • This study develops a real-time signal control algorithm based on sectional travel times and includes a field test and evaluation. The objective function of the signal control algorithm is the equalization of delay of traffic movements, and the main process is calculating dissolved time of the queue and delay using the sectional travel time and detection time of individual vehicles. Then this algorithm calculates the delay variation and a targeted red time and calculates the length of the cycle and phase. A progression factor from the US HCM was applied as a method to consider the effect of coordinating the delay calculation, and this algorithm uses the average delay and detection time of probe vehicles, which were collected during the accumulated cycle for a stabile signal control. As a result of the field test and evaluation through the application of the traffic signal control algorithm on four consecutive intersections at 400m intervals, reduction of delay and an equalization effect of delay against TOD control were confirmed using the standard deviation of delay by traffic movements. This study was conducted to develop a real-time traffic signal control algorithm based on sectional travel time, using general-purpose traffic information detectors. With the current practice of disseminating ubiquitous technology, the aim of this study was a fundamental change of the traffic signal control method.