• Title/Summary/Keyword: affect states

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Improving Quality of Life Among Cancer Patients in Malaysia

  • Ezat, W.P. Sharifa;Noraziani, K.;Sabrizan, O.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.3
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    • pp.1069-1075
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    • 2012
  • There are an almost infinite number of states of health, all with differing qualities that can be affected by many factors. Each aspect of health has many components which contribute to multidimensionality. Cancer and its' related issues surrounding the treatment plan contribute to the variety of changes of quality of life of cancer patients throughout their life. The objective of this article was to provide an overview of some of the issues that can affect their quality of life and initiatives towards successful care in Malaysia by reviewing relevant reports and articles. The current strategies can be further strengthened by prevention of cancer while improving quality of service to cancer patients.

An Empirical Study to Examine the Relationship between the Level of Information Systems and the Business Performance of the Local Small Business Firms (지방중소기업의 정보화 현황과 정보화수준에 따른 기업성과)

  • Kim Kap Sik
    • The Journal of Information Systems
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    • v.12 no.2
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    • pp.109-128
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    • 2003
  • This study is intended to suggest an ideal direction of the information systems policy for the local small business firms. In an effort to accomplish this objective, this paper tried to identify the current states of the information systems and measure the level of the information systems of local small business firms based on the maturity stage and the development level. The study then explored the evidence how the maturity stage and the development level affect the business performance of the local small business firms. The research found out that the organizational factor such as the support of CEO and the financial factor such as IS investment took major roles to improve the business performance. Based on the research findings of this study, the paper suggested the desirable solution of the information system policy to deal with the problems the local small business firms need to overcome.

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On-line parameter estimation of continuous-time systems using a genetic algorithm (유전알고리즘을 이용한 연속시스템의 온라인 퍼래미터 추정)

  • Lee, Hyeon-Sik;Jin, Gang-Gyu
    • Journal of Institute of Control, Robotics and Systems
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    • v.4 no.1
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    • pp.76-81
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    • 1998
  • This paper presents an on-line scheme for parameter estimation of continuous-time systems, based on the model adjustment technique and the genetic algorithm technique. To deal with the initialisation and unmeasurable signal problems in on-line parameter estimation of continuous-time systems, a discrete-time model is obtained for the linear differential equation model and approximations of unmeasurable states with the observable output and its time-delayed values are obtained for the nonlinear state space model. Noisy observations may affect these approximation processes and degrade the estimation performance. A digital prefilter is therefore incorporated to avoid direct approximations of system derivatives from possible noisy observations. The parameters of both the model and the designed filter are adjusted on-line by a genetic algorithm, A set of simulation works for linear and nonlinear systems is carried out to demonstrate the effectiveness of the proposed method.

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Effects of Kinematic Motions and Contact Configurations on the Wear of UHMWPE (접촉 형상과 기구학적 운동형태가 초고분자량 폴리에틸렌의 마멸에 미치는 영향)

  • 이권용
    • Tribology and Lubricants
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    • v.18 no.2
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    • pp.143-146
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    • 2002
  • The effects of contact configuration and kinematic motion on the wear of ultrahigh molecular weight polyethylene (UHMWPE) were investigated. Two different contact configurations were adopted for wear testing under the two different kinematic motions with un-irradiated UHMWPE specimens. Wear of UHMWPE pins against the linear reciprocating stainless steel disks was 8% higher than that against the uni-directional repeat pass rotating disks. Wear of UHMWPE disks moving in the linear reciprocating motion against stainless steel ball was 37% higher than that moving in the uni-directional repeat pass rotating motion. The results in this study show that the contact configuration and kinematic motion of sliding definitely affect the wear of UHMWPE through the differences in the contact stress states of UHMWPE.

Reliability Evaluation of a Pin Puller via Monte Carlo Simulation

  • Lee, Hyo-Nam;Jang, Seung-gyo
    • International Journal of Aeronautical and Space Sciences
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    • v.16 no.4
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    • pp.537-547
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    • 2015
  • A Monte Carlo (MC) simulation was conducted to predict the reliability of a newly developed pyrotechnic pin puller. The reliability model is based on the stress-strength interference model that states that failure occurs if the stress exceeds the strength. In this study, the stress is considered to be the energy consumed by movement of a pin shaft, and the strength is considered to be the energy generated by pyrotechnic combustion for driving the pin shaft. Failure of the pin puller can thus be defined as the consumed energy being greater than the generated energy. These energies were calculated using a performance model formulated in the previous study of the present authors. The MC method was used to synthesize the probability densities of the two energies and evaluate the reliability of the pin puller. From a probabilistic perspective, the calculated reliability was compared to a deterministic safety factor. A sensitivity analysis was also conducted to determine which design parameters most affect the reliability.

A Study on the Linearity Synapse Transistor of Analog Memory Devices in Self Learning Neural Network Integrated Circuits (자기인지 신경회로망에서 아날로그 기억소자의 선형 시냅스 트랜지스터에 관한연구)

  • 강창수
    • Electrical & Electronic Materials
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    • v.10 no.8
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    • pp.783-793
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    • 1997
  • A VLSI implementation of a self-learning neural network integrated circuits using a linearity synapse transistor is investigated. The thickness dependence of oxide current density stress current transient current and channel current has been measured in oxides with thicknesses between 41 and 112 $\AA$, which have the channel width $\times$ length 10 $\times$1${\mu}{\textrm}{m}$, 10 $\times$ 0.3${\mu}{\textrm}{m}$ respectively. The transient current will affect data retention in synapse transistors and the stress current is used to estimate to fundamental limitations on oxide thicknesses. The synapse transistor has represented the neural states and the manipulation which gaves unipolar weights. The weight value of synapse transistor was caused by the bias conditions. Excitatory state and inhitory state according to weighted values affected the drain source current.

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Fabrication of EPD Films by Applying a.c Field Assisted Method (수직보조전계 인가방식에 의한 전기영동 전착막의 제작)

  • Jeon, Yong-Woo;Park, Seong-Beom;Soh, Dea-Wha
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.11a
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    • pp.107-110
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    • 2002
  • The electrophoretic deposition (EPD) technique have been applied to fabricating superconducting films and wires in former researches of our Lab. However, the particles of EPD films were usually deposited random1y on the metal substrate, the vertically combined a.c and d.c fields were applied to the EPD electrodes for orienting and densifying the particles of high $T_{c}$ superconducting deposition film on the substrate metal. Therefore, the surface states of EPD films by this combined fields could be oriented and affect to the electric properties increasing of superconducting films. The proposed method modified by a.c. assisted field to the conventional electrophoresis system was suitable to obtain improved properties with particle oriented deposition and densification.

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A Study for a Methodology to Analyze Container Delays versus Security (보안대비 컨테이너 지연분석을 위한 방법론적 연구)

  • Yoon, Dae-Gwun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.13 no.1 s.28
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    • pp.47-54
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    • 2007
  • After September 11, 2001, the United State's Customs and Border Protection (CBP) has set up inspection stations in seaport terminals. The inspection station, however, may directly and indirectly affect delay time in the seaports, increasing by especially high and severe level of security. This paper studies for a methodology to analyze container delays versus security incurring by the various layouts of the inspection station in the United States.

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Hot-Carrier Induced GIDL Characteristics of PMOSFETs under DC and Dynamic Stress (직류 및 교류스트레스 조건에서 발생된 Hot-Carrier가 PMOSFET의 누설전류에 미치는 영향)

  • 류동렬;이상돈;박종태;김봉렬
    • Journal of the Korean Institute of Telematics and Electronics A
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    • v.30A no.12
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    • pp.77-87
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    • 1993
  • PMOSFETs were studied on the effect of Hot-Carrier induced drain leakage current (Gate-Induced-Drain-Leakage). The result turned out that change in Vgl(drain voltage where 1pA/$\mu$m of drain leadage current flows) was largest in the Channel-Hot-Hole(CHH) injection condition and next was in dynamic stress and was smallest in electron trapping (Igmax) condition under various stress conditions. It was analyzed that if electron trapping occurrs in the overlap region of gate and drain(G/D), it reduces GIDL current due to increment of flat-band voltage(Vfb) and if CHH is injected, interface states(Nit) were generated and it increases GIDL current due to band-to-defect-tunneling(BTDT). Especially, under dynamic stress it was confirmed that increase in GIDL current will be high when electron injection was small and CHH injection was large. Therefore as applying to real circuit, low drain voltage GIDL(BTDT) was enhaced as large as CHH Region under various operating voltage, and it will affect the reliablity of the circuit.

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Effects of the Superlattices on STM Imaging of Self-organized Substituted Alkyl Chain Monolayers on a Graphite Surface

  • Son, Seung Bae;Hahn, Jae Ryang
    • Bulletin of the Korean Chemical Society
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    • v.33 no.12
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    • pp.4155-4160
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    • 2012
  • We characterized the physisorption of p-iodo-phenyl octadecyl ether molecules (I-POE) onto superlattice regions of graphite surfaces using scanning tunneling microscopy (STM). The formation of self-organized I-POE monolayers does not affect the overall structures of moir$\acute{e}$ patterns and their modulation periods. However, the packing density of the I-POE monolayer and the orientations of lamella structures were sensitive to the underlying superlattice structure. Depending on the bias voltage, the STM images selectively showed moir$\acute{e}$ pattern, I-POE layer, or both. Reflecting the local density of states at a certain energy level, the STM images thereby revealed the relative energy level scale of the superlattice with respect to the molecular orbitals of I-POE.