• Bulletin of the Korean Chemical Society
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• v.28 no.11
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• pp.1967-1972
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• 2007

Photophysical properties of a newly-synthesized porphyrin derivative, trans-bis(ferrocene carboxylato)- (5,10,15,20-tetraphenylporphyrinato)tin(IV) [Sn(TPP)(FcCOO)2] were investigated by means of steady-state and fs-time resolved laser spectroscopic techniques, and compared with those of a standard molecule, trans-dichloro( 5,10,15,20-tetraphenyl-porphrinato)tin(IV) [Sn(TPP)Cl2]. The fluorescence spectrum of Sn(TPP)- (FcCOO)2 was observed to exhibit dual emission bands originating from the S2-state and the S1-state, which was greatly quenched as compared to those of Sn(TPP)Cl2. The fs-time resolved fluorescence and transient absorption spectroscopic measurements revealed that the fluorescence quenching is due to formation of the long-lived charge transfer state by intramolecular electron transfer from ferrocene to the S2-excited SnTPP in addition to the enhanced non-radiative deactivation processes.

• Journal of Software Engineering Society
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• v.13 no.3
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• pp.92-97
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• 2000

양질의 소프트웨어제품과 서비스를 생산하는 방법은 우수한 선례를 답습하거나, 성공한 선례를 해당 응용업무에 맞도록 발전시키는 것이다. 즉 프로세스들의 모임인 소프트웨어 프로세스를 각각의 소프트웨어 서비스와 시스템의 개발목적에 부합하도록 정의하는 것이다. 프로세스 모임은 정보화사업의 포괄적 관리가 가능하게하며, 사업제기부서가 소프트웨어 시스템에 대한 전반적인 의무와 책임을 갖게 하며, 정보화사업 감리에 있어서 감리 목표 정립과 감리의 시행을 명확하게 한다. 소프트웨어 서비스 및 시스템 개발에 있어서 적합한 프로세스의 모임을 목표프로세스 프로파일(Target Process Profile) 이라고 명명하였다. TPP을 정의함에 있어서는 정의할 대상시스템의 성능과 시스템의 효과성이 어느 정도 가시화되는 여건에서, 소프트웨어 서비스 및 시스템의 수명주기 목표, 수명주기 아키텍쳐 및 수명주기 계획을 도출한다. 즉 아키텍쳐 접근방법, 소프트웨어프로세스의 정착, 및 국제표준의 프로세스에서의 프로세스 모임규칙을 근간으로 하여 TPP의 프레임워크(Framework)을 시안을 작성하였다. 소프트웨어공학의 발전과정에서 프로세스 능력의 성숙도 기준으로 프로세스 모임을 이룬것에 추가하여, 논자는 ISO/IEC 15504 TR 프로세스간의 전후관계에서 TPP을 위한 작업산출물 도출방법을 정의하였다. TPP에 의한 정보화추진은 정보화시대에서 소프트웨어 품질 및 가격에서 경쟁력을 가져오는 요인이 될 것이다.

• Macromolecular Research
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• v.10 no.5
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• pp.273-277
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• 2002

Ultra-thin polymer films containing cobalt(II) meso-tetraphenylporphyrin(CoTPP) have been prepared by vacuum codeposition of the metal complex and trans-2-butene as an organic monomer using an inductively coupled RF glow discharge operating at 7-9 Watts. The polymer films were characterized by sorption measurements. Sorption data obtained for polymer films containing CoTPP indicate that the CoTPP molecules are capable of reversibly binding oxygen molecules. It was found that the adjacent CoTPP molecules in the aggregated metal complex phase could irreversibly share the oxygen molecules. A dispersion of the metal complex molecules in the polymer matrix was made to maintain the reversible reactivity of the metal complex molecules with oxygen in the polymer films via vacuum evaporation process. The Henry mode solubility constant, the Langmuir mode capacity constant, the amount of binding oxygen, and the dissociation equilibrium in the dual mode sorption theory were discussed.

• 농업기술회보
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• v.49 no.3
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• pp.22-25
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• 2012

우리나라는 미국, EU, 그리고 중국으로 이어지는 빅3의 경제권과 FTA를 체결하였고, 체결한다고 자랑스러워하며 세계적으로 유례없는 무역전쟁에서의 선점이라고 하고 있다. 이에 일본의 농업을 둘러싼 상황을 살펴보고 우리는 농업에 대해 무엇을 어떻게 해야 되는지를 느끼고자 한다. 2011년 11월 일본 노다총리는 TPP참가를 표명하였다. 예외 없는 관세철폐를 위한 협정, 무역을 완전히 자유화하여 관세를 철폐하면 일본의 산업은 공업으로 특화되고 농업은 괴멸될 것이라는 것이 일본 농업관계자들의 생각이다. 농업에 대해서는 강화방안을 실시한다고 하지만, 규모 확대나 소득보상을 하여도, 수입이 증가하면 그만큼 국내생산은 감소하고 농업의 쇠퇴는 피할 수 없을 것이다. 일본 경단련회장인 오꾸다씨는 외국인의 이주도 장려해야 한다고 하지만, 저임금과 실업이나 취업 등의 어려움이 반드시 따라올 것이다. 무역, 공업 그리고 각국과의 우호도 중요하지만, 가장 중요한 것은 어떠한 시대가 와도 국가는 자국민의 식량을 해결해야 한다는 것과 국민의 생명을 지키는 것이다. 농업만이 아니고 국민의 사회생활전반에 걸쳐 각종 문제를 야기할 수 있는 TPP이지만, 식량안전보장의 견지에서도 TPP참가는 허용하기 어렵다. 예외 없는 자유화 등 상대국의 생명에 관계되는 것을 잃게 한다는 것은 진실된 파트너십이라고 할 수 없다.

• East Asian Economic Review
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• v.18 no.2
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• pp.163-186
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• 2014

This paper argues that the formation of regional integration frameworks can be best understood as a dominant state's attempt to create a preferred regional framework in which it can exercise exclusive influence. In this context, it is important to observe not only which countries are included in a regional framework, but also which countries are excluded from it. For example, the distinct feature of the Trans-Pacific Partnership (TPP) is its exclusion of China, and that of the Regional Comprehensive Economic Partnership (RCEP) is its exclusion of the United States (US). An exclusion of a particular country does not mean that the excluded country will perpetually remain outside the framework. In fact, TPP may someday include China, resulting from a policy of the US "engaging" or "socializing" China rather than "balancing" against it. However, the first step of such a policy is to establish a regional framework from which the target country of engagement is excluded.

• Bulletin of the Korean Chemical Society
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• v.17 no.10
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• pp.929-934
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• 1996

The electrochemistry and the reaction of non-μ-oxo dimer-forming [5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrinato] manganese(Ⅲ) chloride [(Cl8TPP)MnⅢCl] with tetraethylammonium hydroxide in water [-OH(H2O)] have been investigated by electrochemical and spectroscopic methods under anaerobic conditions. The stronger autoreduction of (C18TPP)MnⅢCl by -OH(H2O) in comparison with (Me12TPP)MnⅢCl by -OH(CH3OH) in MeCN is explained as the influence of electronic effects on substituted phenyl groups bonded to meso-position of porphyrin ring and the positive shift of reduction potential (-0.11 V) for (C18TPP)MnⅢCl. The autoreduction of manganese(Ⅲ) porphyrin to manganese (Ⅱ) by this process is only observed when one axial position is occupied by a ligating solvent and OH- coordinates the other axial site. The results are discussed in relation to the mechanisms for the reduction of manganese(Ⅲ) porphyrin.

• Journal of the Korean Chemical Society
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• v.37 no.8
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• pp.735-743
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• 1993

The electrocatalytic reduction of oxygen is investigated by cyclic voltammetry and chronoamperometry at glassy carbon electrode and carbon microelectrode coated with a variety of cobalt phenylprophyrins in various pH solutions. Oxygen reduction catalyzed by the monomeric porphyrin Co(Ⅱ)-TPP mainly occurs through the 2e$^-$ reduction pathway resulting in the formation of hydrogen peroxide whereas electrocatalytic process carried out 4e$^-$ reduction pathway of oxygen to H$_2$O at the electrodes coated with cofacial bis-cobalt phenylporphyrins in acidic solution. The electrocatalytic reduction of oxygen is irreversible and diffusion controlled. The reduction potentials of oxygen in various pH solutions have a straight line from pH 4 to pH 13, but level off in strong acidic solution. The reduction potentials of oxygen shift to positive potential more 400 mV at the electrode coated with monomer Co-TPP compound than bare glassy carbon electrode while 750 mV at the electrode coated with dimer Co-TPP compound.

• Membrane Journal
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• v.28 no.6
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• pp.424-431
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• 2018

The gas separation performance of a mixed membrane structure based on a mixture of polyethersulfone (PES) and cobalt tetraphenylporphyrin-benzylimidazole (CoTpp-BIm) as an oxygen carrier was investigated. The CoTpp-BIm mixed PES membrane had an asymmetric structure with a mixture of finger structure and sponge-like structure, and the upper surface was dense. The gas separation performance test was carried out using $94%\;N_2$ gas and $6%\;O_2$ mixed gas. Oxygen and nitrogen permeability coefficients were measured at ${\Delta}P$ ranging from 15 to 228 cmHg and the permeate side of the PES membrane was maintained at vacuum level. The oxygen permeability coefficient of CoTpp-BIm mixed PES membranes increased as supplied pressure was decreased. When the supply pressure was 15 cmHg, the gas permeability ($P_{O_2}$) was 6676 Barrer, the $O_2/N_2$ selectivity (${\alpha}$) was 6.1, and the promoting factor (F) was 2.39. Based on these results, it was confirmed that the addition of CoTpp-BIm to the PES film improved the oxygen separation characteristics.

• Applied Chemistry for Engineering
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• v.10 no.5
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• pp.707-710
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• 1999

Moisture content and intrinsic viscosity of antistatic polyethyleneterephthalate(PET) depending on the thermal stabilizer content was studied. The terminal moisture content of antistatic PET was a function of drying temperature rather than drying time. Intrinsic viscosity drop of antistatic PET after melt spinning increased with increasing moisture content of it. After melt spinning, intrinsic viscosity of antistatic PET was decreased due to the thermal degradation of polyoxyalkyleneglycol(POAG) component of antistatic agent. Triphenylphosphate(TPP) was more effective as a thermal stabilizer than trimethylphosphate(TMP). A little intrinsic viscosity drop after melt spinning was found in PET containing 300 ppm of TPP as a thermal stabilizer.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.1
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• pp.123-129
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• 2020

Intra-industry trade (IIT) has played an important role in international trade of Vietnam as a result of rapid growth of the country. This article investigates the level of IIT between Vietnam and 11 trading partners in Trans-Pacific Partnership (TPP) over the period 2000-2014. Although there have been a large number of empirical researches contributed to the determinants of IIT, most of them only pay attention on developed countries where the trade flows are similar due to similar demand structure and production technology. Until now, there is no study on intra-industry trade between Vietnam and countries in TPP that Vietnam recently signed a trade agreement in early 2016. IIT is measured by the Grubel-Lloyd index. The index shows that the extent of intra-industry trade between Vietnam and the trading countries is not high due to the level of economic development and the market size. The determinants of IIT are examined using a panel regression model. In the empirical analysis, the results indicate that Vietnam's intra-industry trade is positively correlated with country size, while it is negatively correlated with income dissimilarity, the trade openness, and geographical distance. This study contributes to the new theoretical trade theory on the evidence of developing country's IIT.