• Title/Summary/Keyword: Auxiliary function

Search Result 200, Processing Time 0.032 seconds

WEB Advertising and Electronic Commercing Method Based on Dual LCD Monitor (두 화면 모니터 기반 웹 광고 및 전자상거래 기법)

  • 이은석;임춘환;손영수;배상현
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.5 no.7
    • /
    • pp.1195-1203
    • /
    • 2001
  • The tophead monitor is a dual screen monitor that concludes auxiliary monitor with size 6.4 inch on the top of monitor. The bottom monitor screen provide previous function in the same way as before and the auxiliary monitor screen is arranged contents of internet advertising icon, banner advertising icon, moving picture screen, mail icon, etc. If you click contents, contents is moved peristaltically with the bottom monitor screen. The dual monitor screen is controlled by mouse and keyboard in the same way as before.

  • PDF

Foldable Electric Walking Design and Production for the Elderly (고령자를 위한 접이식 전동 보행보조기 디자인 및 제작)

  • Kim, B.M.;Lee, W.Y.;Lee, E.H.
    • Journal of rehabilitation welfare engineering & assistive technology
    • /
    • v.8 no.4
    • /
    • pp.299-303
    • /
    • 2014
  • Demand of moving auxiliary equipment has increased recently to an increase in the elderly population. pedestrian demand is either moving auxiliary equipment are also increasing. regional migration, such as pedestrian and the elderly and patients is a device to support the sharing received walking the weight of inconvenient people. In this paper, by mounting the electric function to the current manual walking, to prepare the electric walking to support the user's walking. the design applies a lightweight folding structure so that it can be moved to a ride at long distances, were fabricated.

  • PDF

Studies on Dynamic Responses of Nuclear Power Plant during Frequency and Voltage Decays (계통주파수 및 전압 저하시 원자력발전소 응동 분석)

  • Cho, Sung-Don;Kang, In-Su
    • Proceedings of the KIEE Conference
    • /
    • 1999.07c
    • /
    • pp.1221-1223
    • /
    • 1999
  • The safety loads in a nuclear power plant perform a critical function to plant safety. The design of the electrical auxiliary system should ensure the availability and adequacy of the power supply, and therefore, the frequency and voltage relaying schemes should be installed on the system to monitor and protect against the degraded system condition. If unforeseen contingencies degrade the switchyard frequency and voltage to below the minimum values, the safety related bus should properly be transferred to alternate power source. This paper presents guidelines associated with the protection of nuclear power plants during frequency/voltage decay and the steady-state and dynamic analysis of auxiliary power system that should be performed to support the degraded voltage relay(second level undervoltage relay) setting.

  • PDF

A Study on the Linear System Simplification by Auxiliary Denominator Polynomial and Moment Matching (보조분모분수식과 모멘트 정합에 의한 선형 시스템 간략법에 관한 연구)

  • 황형수;이경근;양해권
    • Journal of the Korean Institute of Telematics and Electronics
    • /
    • v.24 no.6
    • /
    • pp.948-955
    • /
    • 1987
  • The model reduction method of the high order linear time invariant systems is proposed. The continuous fraction expansion of Auxiliary denominator polynomial is used to obtain denominator polynomial of the reduced order model, and the numerator polynomial of the reduced order model is obtained by equating the first some moments of the original and the reduced order model, using simplified moment function. This methiod does not require the calculation of the reciprocal transformation which should be calculated in Routh approximation, furthemore the stability of the reduced order model is guaranted if original system is stable. Responses of this method showed us good characteristics.

  • PDF

Dosing of Inductor Electronic Starting Switch of Single Phase Induction Motor (단상유도전동기의 인덕터 전자식 기동기 설계)

  • Seo, K.S.;Park, S.K.;Park, J.W.;Park, J.H.;Cho, G.B.;Baek, H.L.
    • Proceedings of the KIEE Conference
    • /
    • 2002.11d
    • /
    • pp.267-270
    • /
    • 2002
  • Fractional horse power single phase induction motors have no starting torque their own. So there are several ways of starting single phase induction motors. The most common type is the starting capacitor installed in series with the auxiliary winding to increase the starting torque. Also, the auxiliary winding is disconnected once the speed of the motor reaches 70 to 80 [%] of the rated speed. In the conventional systems, this function is conducted by a centrifugal switch. But the mechanical centrifugal switch has many problems such as switch malfunction. This paper presents the new methods of electronic starting switch by inductor to overcome these shortcomings of centrifugal switch.

  • PDF

PromoterWizard: An Integrated Promoter Prediction Program Using Hybrid Methods

  • Park, Kie-Jung;Kim, Ki-Bong
    • Genomics & Informatics
    • /
    • v.9 no.4
    • /
    • pp.194-196
    • /
    • 2011
  • Promoter prediction is a very important problem and is closely related to the main problems of bioinformatics such as the construction of gene regulatory networks and gene function annotation. In this context, we developed an integrated promoter prediction program using hybrid methods, PromoterWizard, which can be employed to detect the core promoter region and the transcription start site (TSS) in vertebrate genomic DNA sequences, an issue of obvious importance for genome annotation efforts. PromoterWizard consists of three main modules and two auxiliary modules. The three main modules include CDRM (Composite Dependency Reflecting Model) module, SVM (Support Vector Machine) module, and ICM (Interpolated Context Model) module. The two auxiliary modules are CpG Island Detector and GCPlot that may contribute to improving the predictive accuracy of the three main modules and facilitating human curator to decide on the final annotation.

Optimal Design for Thrust Ripple Reduction of Stationary Distributed-Armature System

  • Park, Eui-Jong;Jung, Sang-Yong;Cho, Kyoung-Pil;Kim, Yong-Jae
    • Journal of Magnetics
    • /
    • v.21 no.1
    • /
    • pp.72-77
    • /
    • 2016
  • Although the initial cost of permanent-magnet linear synchronous motors is high owing to the installation of armatures over the full length of the transportation lines, linear motors are useful for transportation systems because of their high speed, acceleration, and deceleration. For these reasons, research into reducing the cost of linear motors is necessary, and a stationary distributed-armature system has been suggested for installing armatures in sections where acceleration and deceleration of the mover are required. However, each armature has ends that significantly increase the cogging force, resulting in the increase in the thrust ripple of the mover. Therefore, in order to improve the thrust ripple of the system, the present study aims to provide auxiliary teeth on both ends of the armature to achieve an optimal design through an analysis of the contribution ratio with respect to factors regarding the design of the experiment and the objective function.

RELATIVE RECIPROCAL VARIATIONAL INEQUALITIES

  • Khan, Awais Gul;Noor, Muhammad Aslam;Pervez, Amjad;Noor, Khalida Inayat
    • Honam Mathematical Journal
    • /
    • v.40 no.3
    • /
    • pp.509-519
    • /
    • 2018
  • In this paper, we introduce a new class of reciprocal convex set which is called as relative reciprocal convex set. We establish a necessary and sufficient condition for the minimum of the differentiable relative reciprocal convex function. This condition can be viewed as a new class of variational inequality which is called relative reciprocal variational inequality. Using the auxiliary principle technique we discuss the existence criteria for the solution of relative reciprocal variational inequality. Some special cases which are naturally included in our main results are also discussed.

The Study of Auxiliary Power Unit for locomotive (철도차량용 보조전원장치에 관한 연구)

  • Jeong, Han-Dong;Lee, Won-Cheol;Lee, Sang-Seok;Kim, Tae-Hwan;Won, Chung-Yuen
    • Proceedings of the KSR Conference
    • /
    • 2009.05b
    • /
    • pp.615-619
    • /
    • 2009
  • There are many increasing demands for efficient high power density of auxiliary power unit(APU) for high speed traction application. Many techniques have been proposed to measure the voltage flicker on the traditional pulse width modulation(PWM) inverter. This paper proposes a novel functionality of the static inverter on the APU to mitigate the voltage flicker and regulate the output voltage. A new control algorithm for the inverter based on the Hilbert transform(HT) is presented. The HT is employed as an effective technique for tracking the voltage flicker levels in APU systems. Simulation results are provided to verify the tracking capabilities of the HT and to evaluate the performance of the proposed DG interface for multi-function operation.

  • PDF

NEW GENERALIZATION OF THE WRIGHT SERIES IN TWO VARIABLES AND ITS PROPERTIES

  • Belafhal, Abdelmajid;Chib, Salma;Usman, Talha
    • Communications of the Korean Mathematical Society
    • /
    • v.37 no.1
    • /
    • pp.177-193
    • /
    • 2022
  • The main aim of this paper is to introduce a new generalization of the Wright series in two variables, which is expressed in terms of Hermite polynomials. The properties of the freshly defined function involving its auxiliary functions and the integral representations are established. Furthermore, a Gauss-Hermite quadrature and Gaussian quadrature formulas have been established to evaluate some integral representations of our main results and compare them with our theoretical evaluations using graphical simulations.