• Title/Summary/Keyword: the property (E, A)

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The analysis of Ag doping mechanism by photo-exposure (광노출에 따른 Ag도핑 메카니즘 해석)

  • 이현용;김민수;정홍배
    • Electrical & Electronic Materials
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    • v.8 no.4
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    • pp.472-477
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    • 1995
  • The degree of the photodoping process in Ag(100[.angs.])/a-Se$_{75}$Ge$_{25}$(1500[.angs.]) films has measured as a function of the photon energy between 1.5[eV] and 2.9[eV] with the exposing time. The "window" characteristics of Ag occur at 3400[.angs.] (3.65[eV]) and Ag is almost transparent in this region. It is shown that transmittance is almost constant (40-50%) for the wavelength ranges of our experiment. It is found that the energy gap of a unexposed a-Se$_{75}$Ge$_{25}$ film is 1.81[eV]. Ag photodoping process results in the photodarkening effect which the absorption edge shifts to the long wavelength. Especially, very large band shift (-0.3[eV]) is obtained by exposing He-Ne laser(6328[.angs.]).. We have obtained "the U-type property" for Ar He-Ne and semiconductor laser. It is associated with the variation of energy gap(E$_{g}$) with photo-dose and substantially is explained by DWP model.l.gap(E$_{g}$) with photo-dose and substantially is explained by DWP model.

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On a Transversality over Local Global Rings

  • Shin, Kee-Young
    • Journal of the Chungcheong Mathematical Society
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    • v.7 no.1
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    • pp.33-39
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    • 1994
  • The purpose of this paper prove the following property; Suppose A has many units (local global ring) and |A/m| > 5 for every maximal ideal $m{\subseteq}A$. Let(E, q) ${\in}$ Q(A) and $E=E_1{\bot}{\cdots}{\bot}E_t$ be an orthogonl decomposition of E with $t{\geq}2$ and $rk(E_i){\geq}1$, for $i=1,{\cdots},t$. Let $x{\in}E$ be a primitive vector. Then there exists ${\sigma}{\in}O(q)$ such that ${\sigma}(x)$ is transversal to this decomposition.

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Dyeing Characteristics and UV Protection Property of Green Tea Dyed Cotton Fabrics - Focusing on the Effect of Chitosan Mordanting Condition-

  • Kim Sin-Hee
    • Fibers and Polymers
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    • v.7 no.3
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    • pp.255-261
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    • 2006
  • There is increasing interest in the many beneficial aspects of green tea to human such as anti-carcinogenic, anti-aggregant, anti-allergic, anti-bacterial, anti-mutagenic, and anti-oxidant activities. Besides these beneficial aspects, it has been reported that green tea ingredients, especially polyphenolic families (i.e., catechin), have some UV protection property both in vivo and in topical applications. In this study, green tea extract was used as a dyeing stock for cotton and the UV protection property of the dyed cotton fabric was examined. To increase the affinity of cotton fiber to the polyphenolic components in the green tea extract, a natural biopolymer, chitosan, was used as mordanting agent. The effects of chitosan concentration in mordanting on the dyeing characteristics and the UV protection property were examined. Chitosan mordanted green tea dyed cotton showed better dyeing characteristic and higher UV protection property compared with the unmordanted green tea dyed cotton. As the chitosan concentration in mordanting increased, the dyeing efficiency and the UV protection property also increased. Therefore, adapting chitosan mordanting in green tea dyeing can increase the UV protection property of cotton fabrics to some extent.

A class of multi-level spreading codes with enhanced ZCD property

  • Cha, Jae-sang
    • Proceedings of the IEEK Conference
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    • 2002.07c
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    • pp.1705-1708
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    • 2002
  • Spreading codes with ZCD(zero-correlation duration) property have the MAI(multiple access interference) rejection ability in the CDMA systems. A class of multi-level spreading codes, i.e., Zero padded ternary ZCD codes are introduced in this paper. By the selected zero-padding method to the binary ZCD codes, ternary ZCD codes are generated and they have enhanced ZCD property and family size than the binary ZCD codes.

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Developing a User Property Metadata to Support Cognitive and Emotional Product Design (인지·감성적 제품설계 지원을 위한 사용자 특성정보 메타데이터 구축)

  • Oh, Kyuhyup;Park, Kwang Il;Kim, Hee-Chan;Kim, Woo Ju;Lee, Soo-Hong;Ji, Young Gu;Jung, Jae-Yoon
    • The Journal of Society for e-Business Studies
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    • v.21 no.4
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    • pp.69-80
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    • 2016
  • Cognitive and emotional product design is becoming crucial because the technology gap decreases more and more. Product design guidelines and the corresponding database are therefore needed to support sensing (e.g. sight, hearing, touch), cognition (e.g. attention, memory) and emotion (e.g. aesthetics, functionality) which users feel differently according to their genders and ages. The user property information which is extracted from various experiments can be used as critical criteria in product design and evaluation, and it is necessary to develop the integrated database of cognition and emotion where to store the user property information. In this research, we design the user property metadata for supporting cognitive and emotional product design and then develop a prototype system. The metadata is designed to reflect the classification of cognition and emotion by investigating and classifying the previous studies related to sensing, cognition and emotion. The user property information is designed in RDF (Resource Description Framework), and a prototype system is developed to store user property information of cognition and emotion based on the designed metadata.

RINGS AND MODULES WHICH ARE STABLE UNDER NILPOTENTS OF THEIR INJECTIVE HULLS

  • Nguyen Thi Thu Ha
    • Bulletin of the Korean Mathematical Society
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    • v.60 no.2
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    • pp.339-348
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    • 2023
  • It is shown that every nilpotent-invariant module can be decomposed into a direct sum of a quasi-injective module and a square-free module that are relatively injective and orthogonal. This paper is also concerned with rings satisfying every cyclic right R-module is nilpotent-invariant. We prove that R ≅ R1 × R2, where R1, R2 are rings which satisfy R1 is a semi-simple Artinian ring and R2 is square-free as a right R2-module and all idempotents of R2 is central. The paper concludes with a structure theorem for cyclic nilpotent-invariant right R-modules. Such a module is shown to have isomorphic simple modules eR and fR, where e, f are orthogonal primitive idempotents such that eRf ≠ 0.

Dielectric Function Analysis of Cubic CdSe Using Parametric Semiconductor Model (변수화 반도체 모델을 이용한 Cubic Zinc-blonde CdSe의 유전함수 분석)

  • Jung, Y.W.;Ghong, T.H.;Lee, S.Y.;Kim, Y.D.
    • Journal of the Korean Vacuum Society
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    • v.16 no.1
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    • pp.40-45
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    • 2007
  • ZnCdSe alloy semiconductor was widely used for the optoelectronic device. And CdSe is the end-point in this material. In this work, we measured the dielectric function spectrum of cubic CdSe with Vacuum Ultra Violet spectroscopic ellipsometry and analysed this data with parametric model. As a result, we observed some of transition energy point over 6 eV and obtained the database for dielectric function spectrum, which could be used for temperature or alloy composition dependence study on optical property of CdSe.

Design of a Logic eFuse OTP Memory IP (Logic eFuse OTP 메모리 IP 설계)

  • Ren, Yongxu;Ha, Pan-bong;Kim, Young-Hee
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.2
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    • pp.317-326
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    • 2016
  • In this paper, a logic eFuse (electrical Fuse) OTP (One-Time Programmable) memory IP (Intellectual Property) using only logic transistors to reduce the development cost and period of OTP memory IPs is designed. To secure the reliability of other IPs than the OTP memory IP, a higher voltage of 2,4V than VDD (=1.5V) is supplied to only eFuse links of eFuse OTP memory cells directly through an external pad FSOURCE coming from test equipment in testing wafers. Also, an eFuse OTP memory cell of which power is supplied through FSOURCE and hence the program power is increased in a two-dimensional memory array of 128 rows by 8 columns being also able to make the decoding logic implemented in small area. The layout size of the designed 1kb eFuse OTP memory IP with the Dongbu HiTek's 110nm CIS process is $295.595{\mu}m{\times}455.873{\mu}m$ ($=0.134mm^2$).

A Study on the Distribution Methods of Tensile Property for Women′s Knit Block (여성용 Knit Block의 신장률 배분 방식에 관한 연구)

  • 허은영;조진숙
    • Journal of the Korean Home Economics Association
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    • v.42 no.8
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    • pp.203-218
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    • 2004
  • Recently, knitted materials are used more often than ever before in fashion. Therefore it is necessary to study their application into garment patterns. The purpose of this study was to develop a system by which the tensile property of knitted fabrics can be applied. In this study, 5 different distribution methods of tensile property were tested on 2 sample fabrics which have a lower and higher tensile property than moderate-stretch. The subjects were five women within an age range from 18 to 24 who showed average body figures. The major findings derived from this investigation were as follows; The 4th method was regarded as the most valid. The 4th method was fixed proportional alteration based on the reduction amount of bust girth, i.e. front (back) width and shoulder width reduced by 60% of the bust girth reduction and neck point reduced by 28% of the bust girth reduction. When the reduction was based on the proportion of the actual measurements, the alteration was too severe, so that the armhole curve was changed into a very uncomfortable curve.

Arbitration of International Intellectual Property Disputes (국제지적재산분쟁의 중재)

  • Sohn, Kyung-Han
    • Journal of Arbitration Studies
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    • v.17 no.2
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    • pp.71-100
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    • 2007
  • To promote the way of resolving the increasing disputes regarding international intellectual property by arbitration, we should overcome uncertainty thwarting the dispute resolution; i.e., whether a dispute regarding intellectual property would be an arbitrable subject, whether the arbitration agreement would be valid and enforceable, and whether the arbitral award could be recognized and enforced in a foreign country. This article is intended to seek how to promote and facilitate the resolution of international disputes regarding intellectual property by arbitration. This article in Chapter II will examine the characteristics of the IP disputes first. Chapter III of this article will study arbitrability of IP disputes. Then, Chapter IV will discuss the requirements, validity, and effectiveness of arbitration agreement of international IP disputes. The author will discuss the procedure of arbitration of the international IP disputes in Chapter V, and finally the recognition and enforcement of foreign arbitral awards thereon in Chapter VI. Due to the so called 'territoriality principle' in intellectual property, the international disputes thereof confront numerous procedural setback, e.g., jurisdiction, conflict of laws, the recognition and enforcement of foreign judgments or awards. To overcome such setbacks, I propose resolution of international IP disputes by one-step arbitration procedure through widely recognizing the arbitrability of IP disputes, and utilizing unnational nature of arbitration. In addition, I propose to set up the principles as to arbitration of the international IP disputes as the American Law Institute has formulated the principles for International Intellectual Property Litigations. By setting up these principles, I am certain it will be helpful to just and prompt resolution of international IP disputes which occur more frequently these days.

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