• 생약학회지
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• 제33권3호통권130호
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• pp.257-261
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• 2002

Each ferritin molecule consists of light subunit 19,000 dalton and heavy subunit 22,000 dalton. Twenty-four protein subunit about $440,000{\sim}500,000$ dalton apoferritin which contained $20{\sim}30%$ Fe as ferric hydroxyphosphate polymer form. Horse spleen-derived ferritin consists of 90% light subunit. These genetic characteristics of ferritin preparations were able to determine by cellulose acetate electrophoresis, but these ferritin preparations contained other components to be disturbed during refining, extraction and making finish products and have difficulties in deciding to be just. So, this study was performed to establish the scientific method for determine the quality of ferritin preparations with immunodiffusion methods which has high specificity between heterogeneous proteins.

• Bulletin of the Korean Chemical Society
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• 제32권12호
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• pp.4286-4290
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• 2011

A novel catalytic synthesis of biscoumarins from 4-hydroxycoumarin and aromatic aldehydes has been developed. The reaction occurs in ethanol in the presence of tetrabutylammonium hexatungstate $[TBA]_2[W_6O_{19}]$ as catalyst to give the corresponding products in high yields. This new approach has short reaction times, clean reaction profiles, and simple experimental and workup procedures. Moreover, the catalyst can be easily recovered by filtration and used at least three times with only slight reduction in its catalytic activity.

• 공업화학
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• 제3권1호
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• pp.35-45
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• 1992

촉매화학의 새로운 한 분야인 광촉매반응에 대한 관심은 계속적으로 증가하고 있다. 최근 광촉매 반응은 값싸고 재생 가능한 에너지원과 화학적으로 유용한 물질을 얻을 수 있는 새로운 방법으로 주목을 받게 되었다. 본고에서는 광촉매반응의 기본원리 그리고 여러가지 불균일계 및 균일계 광촉매반응을 소개한다. 또한 앞으로의 광촉매반응의 응용에 있어서의 문제점과 전망에 대해 알아본다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.547-547
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• 2000

Recently, due to the advance of computer, network and Internet technology, control/monitoring systems are required to process the massive data, At the same time, the software development environment uses more and more component-based methodology. This paper proposes the services for the control /monitoring domain. Especially we define domain-specific interfaces and categories to acquire compatibility between products, and implement architecture for lightweight event service. As it is very important to support compatibility between heterogeneous systems, the proposed system provides modules for the web service and communication protocols based on the XML. And as proposed architecture consists of cluster of servers and Windows 2000's NLB service, it can guarantee more stable operation,

• Molecular & Cellular Toxicology
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• 제1권4호
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• pp.281-283
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• 2005

Extraction of biologically meaningful data and their validation are very important for toxicogenomics study because it deals with huge amount of heterogeneous data. BINGO is an annotation mining tool for biological interpretation of gene groups. Several statistical modeling approaches using Gene Ontology (GO) have been employed in many programs for that purpose. The statistical methodologies are useful in investigating the most significant GO attributes in a gene group, but the coherence of the resultant GO attributes over the entire group is rarely assessed. BINGO complements the statistical methods with graph-theoretic measures using the GO directed acyclic graph (DAG) structure. In addition, BINGO visualizes the consistency of a gene group more intuitively with a group-based GO subgraph. The input group can be any interesting list of genes or gene products regardless of its generation process if the group is built under a functional congruency hypothesis such as gene clusters from DNA microarray analysis.

• 디지털산업정보학회논문지
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• 제4권2호
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• pp.1-12
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• 2008

Home network is a technology that provides possibilities of monitoring/controling/mutilating-recognition between optional home network machines in residences. Currently, home network or other networks like entertainment, residential electronic networks are jumbled together with heterogeneous networks in a rampaging condition. In a reality of high expectation for home networks system like the mutual application for various machines, we are required to have the unification technology for conveniences to satisfy expectations. This thesis reflects how to develop Java applications or mutual products based on convenient interfaces actually that process various sensors which create real time data stream in Java platform through Java based sensor data-stream processing embedded middleware design and realization in real time.

• STI Policy Review
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• 제8권1호
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• pp.62-86
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• 2017

Intellectual Property Rights (IPR) system is one of the major institutions for incentivizing innovation. However, a strong IPR regime does not necessarily encourage innovation every time. This is because a variety of factors come into play in configuring the ways the IPR system interacts with the dynamics of innovation. In the present study, we examine whether different degrees of absorptive capacity at the industry level bring about heterogeneous effects of a strong IPR regime on the innovation capability of innovators across different industries in developing country. Using the case of the 1986 IPR reform in Korea, which permitted patenting pharmaceutical products and copyrighting computer programs, we analyze the quality of patents produced by Korean applicants between 1982 and 1991. Our analysis finds no evidence that the IPR reform improved the innovation capability of innovators in the two aforementioned sectors, but rather affected their patenting behavior differently.

• Bulletin of the Korean Chemical Society
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• 제30권8호
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• pp.1771-1777
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• 2009

The homogeneous B$F_3$ containing chiral Co(III) salen complexes were anchored non-covalently on the surfaces of mesoporous SBA-16 silica containing aluminum species. The Brönsted and Lewis acidic sites are attributed to the immobilization of fluorine functionalized chiral salen complexes on the supports. The FT-IR, UV, ESCA, and NMR analyses were performed to determine the structure of synthesized chiral salen catalysts. These heterogeneous catalysts could be applied in asymmetric ring opening of terminal epoxides by water and phenol derivatives. They showed very high enantioselectivity and yield more than 98% in the catalytic synthesis of optically active products.

• 한국동물학회지
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• 제35권1호
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• pp.17-22
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• 1992

The three yolk polypeptides have been isolated and partially characterized. Their molecular weights of YPI, YP2, and YP3 were 48, 000, 47, 000, and 46, 000, respectivelv, as judged by SDS-polyacrvlamide gel electrophoresis. They have different digestion products upon in situ peptide mapping by limited proteolysis. Two-dimensional gel electrophoresis showed that their isoelectric points were heterogeneous from 5.92 to 6.54. And thew showed three different antigen-antibody reactions when each polvpeptides is reacted with antisera made to a mixture of all of three. These data reported here indicate that the yolk proteins are consisted of distinctive polypeptides in Drosophlla sp. (robusta species group).

• 한국막학회:학술대회논문집
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• 한국막학회 1996년도 심포지움시리즈 Jan-96 투과증발막과 응용
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• pp.69-90
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• 1996

In the chemical industry, in the pharmaceutical industry, and in a number of other industries separation processes are necessary to separate and purify products and raw materials [1,2]. Separation processes are also widely used in other applications such as in recycling valuable materials from waste streams. Unit operations for separation processes can be classified in phase separation techniques and component separation techniques based on the nature of the feed mixtures to be separated. The former techniques are used for the separation of heterogeneous mixtures, in which the feed is already present in two or more separated phases on a micro-scale. The latter are suitable for the separation of homogeneous mixtures such as gaseous mixtures and mixtures of completely miscible liquids. tn these cases the separation into individual components is generally achieved by utilizing the differences in physico-chemical properties of components, and is much more difficult compared to phase separation techniques. Separation processes such as distillation, evaporation, liquid-liquid extraction, and crystallization belong to this class.