• Title/Summary/Keyword: solution property

Search Result 1,470, Processing Time 0.039 seconds

Qualitative Analyses of Porypyrrole-Glucose Oxidase Enzyme Electrode for Immobilization (Polypyrrole-Glucose Oxidase 효소전극에 대한 효소 고정화의 정성적 평가)

  • Kim, Hyun-Cheol;Gu, Hal-Bon;SaGong, Geon
    • Proceedings of the KIEE Conference
    • /
    • 1999.11d
    • /
    • pp.984-986
    • /
    • 1999
  • In the case of immobilizing of glucose oxidase in organic polymer using electrosynthesis, the glucose oxidase obstructs charge transfer and mass transport during the film growth. This may lead to short chained polymer and make charge-coupling weak between the glucose oxidase and the backbone of the polymer. That is mainly due to insulating property and net chain of the glucose oxidase. Such being the case, it is useless to increase in amount of glucose oxidase more than reasonable in the synthetic solution. We establish by means of qualitative analysis that amount of immobilized glucose oxidase can be improved by adding a hole ethyl alcohol in the synthetic solution. As ethyl alcohol was added by 0.1mol $dm^{-3}$ in the synthetic solution, the faradic impedance of resultant electrode was increased about five times as much as the case of ethyl alcohol free in the solution, and mass transport was limited more than over. That is due to insulating property and net chain of the glucose oxidase. Moreover, in ultraviolet spectra of the synthetic solution, the adsorption peak at 285nm corresponding to glucose oxidase was decreased. It suggests increase in amount of immobilized glucose oxidase.

  • PDF

Latin Square Type Partially Balanced Incomplete Block Designs

  • Paik, U.B.
    • Journal of the Korean Statistical Society
    • /
    • v.8 no.2
    • /
    • pp.125-130
    • /
    • 1979
  • It is well known that $L_2(m)$ type PBIB designs have the Property A, so they are BNAS PBIB designs. However, $L_3(m)$ type PBIB designs are not of type of Property A but do have the factorial structure (Cotter, John, and Smith(1973)). In this paper, the properties of the $L_3(m)$ type PBIB designs are investigated. Extended Property A and fractional BNAS are defined and a solution formula for the treatment effects in the $L_32(m)$ type designs is obtained.

  • PDF

ON STEIN TRANSFORMATION IN SEMIDEFINITE LINEAR COMPLEMENTARITY PROBLEMS

  • Song, Yoon J.;Shin, Seon Ho
    • Journal of applied mathematics & informatics
    • /
    • v.32 no.1_2
    • /
    • pp.285-295
    • /
    • 2014
  • In the setting of semidenite linear complementarity problems on $S^n$, we focus on the Stein Transformation $S_A(X)\;:=X-AXA^T$, and show that $S_A$ is (strictly) monotone if and only if ${\nu}_r(UAU^T{\circ}\;UAU^T)$(<)${\leq}1$, for all orthogonal matrices U where ${\circ}$ is the Hadamard product and ${\nu}_r$ is the real numerical radius. In particular, we show that if ${\rho}(A)$ < 1 and ${\nu}_r(UAU^T{\circ}\;UAU^T){\leq}1$, then SDLCP($S_A$, Q) has a unique solution for all $Q{\in}S^n$. In an attempt to characterize the GUS-property of a nonmonotone $S_A$, we give an instance of a nonnormal $2{\times}2$ matrix A such that SDLCP($S_A$, Q) has a unique solution for Q either a diagonal or a symmetric positive or negative semidenite matrix. We show that this particular $S_A$ has the $P^{\prime}_2$-property.

Extraction of ObjectProperty-UsageMethod Relation from Web Documents

  • Pechsiri, Chaveevan;Phainoun, Sumran;Piriyakul, Rapeepun
    • Journal of Information Processing Systems
    • /
    • v.13 no.5
    • /
    • pp.1103-1125
    • /
    • 2017
  • This paper aims to extract an ObjectProperty-UsageMethod relation, in particular the HerbalMedicinalProperty-UsageMethod relation of the herb-plant object, as a semantic relation between two related sets, a herbal-medicinal-property concept set and a usage-method concept set from several web documents. This HerbalMedicinalProperty-UsageMethod relation benefits people by providing an alternative treatment/solution knowledge to health problems. The research includes three main problems: how to determine EDU (where EDU is an elementary discourse unit or a simple sentence/clause) with a medicinal-property/usage-method concept; how to determine the usage-method boundary; and how to determine the HerbalMedicinalProperty-UsageMethod relation between the two related sets. We propose using N-Word-Co on the verb phrase with the medicinal-property/usage-method concept to solve the first and second problems where the N-Word-Co size is determined by the learning of maximum entropy, support vector machine, and naïve Bayes. We also apply naïve Bayes to solve the third problem of determining the HerbalMedicinalProperty-UsageMethod relation with N-Word-Co elements as features. The research results can provide high precision in the HerbalMedicinalProperty-UsageMethod relation extraction.

A classification for the incomplete block designs according to the structure of multi-nested block circulant pattern matrix (다중순환형식행렬의 구조에 의한 불완비블럭 계획의 분류)

  • 배종성
    • The Korean Journal of Applied Statistics
    • /
    • v.2 no.1
    • /
    • pp.54-64
    • /
    • 1989
  • The paper by Kurkjian and Zelen(1963) introducted the Property A which related to a structural property of concordance matrix of the column incidence matrix. On the other hand, Paik(1985) showed the property of the concordance matrix, which has multinested block circulant pattern matrix, and this structural property was termed Property C by Paik(1985). This paper classifies the incomplete block designs according to the pattern of the concordence matrix which has multi-nested block circulant pattern. The purpose of this classification simplified the solution of reduced normal equation and plan of the design.

Inorganic Salt Doped Soluble Polyimide Type Alignment Layer for Improving Panel Reliability and DC Image Sticking Properties

  • Lee, Tae-Rim;Roh, Seung-Kwang;Lim, Young-Nam;Kim, Kyeong-Jin;Shin, Hyun-Ho
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2009.10a
    • /
    • pp.672-676
    • /
    • 2009
  • Polymide is widely used alignment material of recent commercial LCD panel structure. Generally, polyimide alignment material is classified soluble polyimide type and polyamic acid type with their main bond structure of solution state. specially, compared to polyamic acid alignment layer, soluble polyimide type alignment layer have excellent reliability during long term LCD driving cause of their high imidazation ratio(%), high voltage holding ratio(%) and low ion density. The other side, this type alignment materials has significant DC image stickicng side effect for using in-plane switching mode lcd structure cause of their slow DC discharging property. we applied inorganic salt to usual soluble polyimide type alignment layer and found out this technique had good DC image sticking property without any loss of reliability property in inplane switching LCD cell structure. This approach leads excellent DC image sticking property with maintaining high reliability property this approach confirmed improves an image sticking and a reliability simultaneously from the horizontality aligned LCD mode whose relatively bad image sticking property.

  • PDF

An Information Ethics Approach to the Justification of Intellectual Property Rights (지적 재산권의 정당화에 관한 정보윤리학적 접근)

  • 임상수
    • Journal of the Korean BIBLIA Society for library and Information Science
    • /
    • v.12 no.2
    • /
    • pp.31-47
    • /
    • 2001
  • From the viewpoint of Information Ethics. I tried to examine the moral justification of Intellectual Property Rights in the age of the digital information society. Lockian traditional argument of property rights which is based on the value of labor and Hegelian theory of personalization, both are not enough to justify the new Intellectual Property Rights. The notions of Intellectual Property Rights are to be changed. One change is from the absolute dominion over material property to the limited dominion over intellectual property. The change from property rights to process control rights is the other. To protect these intellectual property rights, there are three possible protection devices that we might take - legal protection, technical protection and moral protection. I argued that both legal and technical protection have some limitations, so the final way to protect the IP rights is to attempt to establish the moral protection as a fundamental solution.

  • PDF

Material and rheological properties of (glycidoxypropyl) trimethoxysilane modified colloidal silica coatings

  • Kang Hyun Uk;Park Jung Kook;Kim Sung Hyun
    • Korea-Australia Rheology Journal
    • /
    • v.16 no.4
    • /
    • pp.175-182
    • /
    • 2004
  • Colloidal coating solution was prepared to enhance the hydrophilic property of the film surface. Water and ethanol were used as the dispersion media and (glycidoxypropyl) trimethoxysilane (GPS) as a binder in the colloidal silica coatings. Ethylene diamine was added to the colloidal silica solution as the curing agent. The colloidal silica solution was regarded as a hard-sphere suspension model with low volume fraction of the silica particles. Rheological properties of the silica suspensions modified with GPS have been investigated as a function of pH and concentration. The acidic solution showed high viscosity change by fast hydrolysis reaction and adsorption of the organic binders on the surface of silica particles. However, the hydrolysis was slow at the basic condition and the binders combined with themselves by condensation. The viscosity change was smallest at pH 7. The viscosity increased with the curing time after adding ethylenediamine, and the increase of viscosity at low pH was higher than that at high pH. The hydrophilic properties of the coating film were investigated by the contact angle of water and film surface. The smallest contact angle was shown under the strong acidic condition of pH 2.

Synthesis of $Pb(Mg_{1/3}Nb_{2/3})O_3$ powder by Solvent Evaporation and its Dielectric Property (용매 증발법에 의한 $Pb(Mg_{1/3}Nb_{2/3})O_3$ 분말 합성 및 유전 성질)

  • Lee, Jong-Pil;Lee, Jong-Kook;Kang, Sang-Gu;Kim, Hwan
    • Journal of the Korean Ceramic Society
    • /
    • v.33 no.1
    • /
    • pp.17-24
    • /
    • 1996
  • Pb(Mg1/3Nb2/3)O3 powder with high purity chemical homogeniety and reactivity was prepared by solvent eva-poration of common solution. The common solution was fabricated using a Pb(NO3)2 Mg(NO)3 and NB solution which was prepared by dissolving NbC in H2O2 acquous solution. In precusor powder prepared by solvent evaporation method the synthetic temperature of Pb(Mg1/3 Nb2/3)O3 phase was lowered. And the formation of homogeneous Pb(Mg1/3Nb2/3)O3 phase was enhanced but the formation of pyrochlore phase was reduced. The dielectric constant of PMN ceramics from the synthesized powder was found to increase with both sintering temperature and excess MgO and subsequent analysis of the microstructures confirmed that this was due to an increase in grain size. The grain size dependence is explained as a consequence of low-permittivity grain boundaries.

  • PDF

Deformation Property of TiC-Mo Solid Solution Single Crystal at High Temperature by Compression Test (TiC-Mo 고용체 단결정의 고온 압축변형 특성)

  • Shin, Soon-Gi
    • Korean Journal of Materials Research
    • /
    • v.24 no.11
    • /
    • pp.625-631
    • /
    • 2014
  • To investigate the deformation properties of TiC-(5-20) mol% Mo solid solution single crystals at high temperature by compression testing, single crystals of various compositions were grown by the radio frequency floating zone technique and were deformed by compression at temperature from 1250K to 2270K at strain rates from $5.1{\times}10^{-5}$ to $5.9{\times}10^{-3}/s$. The plastic flow property of solid solution single crystals was found to be clearly different among a three-temperature range (low, intermediate and high temperature ranges) whose boundaries were dependent on the strain rate. From the observed property, we conclude that the deformation in the low temperature range is controlled by the Peierls mechanism, in the intermediate temperature range by the dynamic strain aging and in the high temperature range by the solute atmosphere dragging mechanism. The work softening tends to become less evident with an increasing experimental temperature and with a decreasing strain rate. The temperature and strain rate dependence of the critical resolved shear stress is the strongest in the high temperature range. The curves are divided into three parts with different slopes by a transition temperature. The critical resolved shear stress (${\tau}_{0.2}$) at the high temperature range showed that Mo content dependence of ${\tau}_{0.2}$ with temperature and the dependence is very marked at lower temperature. In the higher temperature range, ${\tau}_{0.2}$ increases monotonously with an increasing Mo content.