• 제목/요약/키워드: Right hand

검색결과 1,063건 처리시간 0.022초

An expansion technique for tolerance approach to sensitivity analysis in linear programming

  • Kim, Koonchan;Jo, Young-Soo;Kang, Young-Yug
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
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    • pp.549-552
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    • 1996
  • The tolerance approach to the sensitivity analysis in linear programming considers simultaneous and independent variations in the coefficients of the objective funciton or of the right-hand side terms and gives a region in which the coefficients and terms and gives a region in which the coefficients and terms can be changed and still the current optimal basis B for the original problem remains as an optimal basis for the perturbed problem. In this paper we describe a procedure that expands a region S obtained by the tolerance approch into a larger region R, so that more variations in the objective function coefficients or the right-hand side terms are permissible.

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Circular Polarization Dielectric Resonator Antenna Excited by Single Loop Feed

  • Jeon, Sin-Hyung;Choi, Hyeng-Cheul;Kim, Hyeong-Dong
    • ETRI Journal
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    • 제31권1호
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    • pp.74-76
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    • 2009
  • A new feeding method for the circular polarization (CP) dielectric resonator antenna (DRA) is proposed in this letter. Two orthogonal modes (${TE^x}_{{\delta}11}$, ${TE^y}_{1{\delta}1$) of the rectangular DRA are excited by a $90^{\circ}$ phase difference of the differential and common modes currents of the proposed feeding structure. To demonstrate the good CP performance of the proposed method, a right-hand CP DRA for a global positioning system was designed. The impedance bandwidth of the proposed antenna for $S_{11}$ < -10 dB and 3 dB axial ratio bandwidth are about 5.4% and 1.95% at 1.57 GHz, respectively.

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전화 상담원 신경병증 (Teleconsultation Neuropathy)

  • 고석민;배종석;박성식;김민기;김병준
    • Annals of Clinical Neurophysiology
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    • 제7권2호
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    • pp.141-142
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    • 2005
  • Two cases of bilateral ulnar neuropathies caused by telephone overuse are described in people engaged in the job of longtime telephone use. They had worked using telephone all through the working hours. Although they were right handed, they usually used the telephone in their left hand so as to leave their right hand free for writing, and would lean his elbow on the desk. Telesales or teleconsultation is a rapidly expanding field of business. These cases highlights the need of proper training and supplies appropriate to do their job.

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A Geometrical Expansion Technique for Tolerance Approach to Sensitivity Analysis in Linear Programming

  • Kim, Koon Chan;Jo, Young Soo;Kang, Young Yug
    • 한국경영과학회지
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    • 제21권2호
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    • pp.35-47
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    • 1996
  • The tolerance approach to the sensitivity analysis in linear programming considers simultaneous and independent variations in the coefficients of the objective function or of the right-hand side terms and gives a region in which the coefficients and terms can be changed and still keeps the current optimal basis B for the original problem as an optimal basis for the perturbed problem. In this paper we describe a procedure that expands the region S obtained by the tolerance approach into a larger region R, so that more variations in the objective function coefficients or the right-hand side terms are permissible.

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Strong Uncorrelated Transform Applied to Spatially Distant Channel EEG Data

  • Kim, Youngjoo;Park, Cheolsoo
    • IEIE Transactions on Smart Processing and Computing
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    • 제4권2호
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    • pp.97-102
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    • 2015
  • In this paper, an extension of the standard common spatial pattern (CSP) algorithm using the strong uncorrelated transform (SUT) is used in order to extract the features for an accurate classification of the left- and right-hand motor imagery tasks. The algorithm is designed to analyze the complex data, which can preserve the additional information of the relationship between the two electroencephalogram (EEG) data from distant channels. This is based on the fact that distant regions of the brain are spatially distributed spatially and related, as in a network. The real-world left- and right-hand motor imagery EEG data was acquired through the Physionet database and the support vector machine (SVM) was used as a classifier to test the proposed method. The results showed that extracting the features of the pair-wise channel data using the strong uncorrelated transform complex common spatial pattern (SUTCCSP) provides a higher classification rate compared to the standard CSP algorithm.

Injury of Corticostriatal Tract between the Striatum and the Premotor Area in a Patient with Traumatic Brain Injury

  • Kwon, Jung-Won;Seo, Jeong Pyo
    • The Journal of Korean Physical Therapy
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    • 제32권6호
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    • pp.391-393
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    • 2020
  • Objectives: We investigated injury of corticostriatal (CStr) tract in patient with mild traumatic brain injury (mTBI), which was demonstrated by DTT. Method: A 44-year-old female with no previous history of neurological, physical, or psychiatric illness had suffered from head trauma resulting from a pedestrian car accident. She complained that could not quickly move the left hand with her intension. After three month's administration, her slowness movement of left hand recovered rapidly to the point that she was able to extend all fingers quickly. Results: On DTT configuration, the integrity of the left CStr tract was well-preserved, however the right CStr tract showed narrowing and partial tearing in the subcortical white matter on a DTT at 25 months after onset. Conclusion: Injury of the right CStr tract was demonstrated in a patient who developed mild motor control problems following mild TBI. We believe that the evaluation of the CStr tract from the secondary motor area for patients who showed unexplained motor control problem is necessary.

우측 전완부와 수부에 화상과 압궤손상을 입은 환자에서 즉시 근막절제술: 증례보고 (Immediate Fasciotomy for Acute Thermal Contact Burn Combined with Compression Injury of the Right Forearm and Hand: A Case Report)

  • 정승원;이승제;유경탁
    • 대한화상학회지
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    • 제23권1호
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    • pp.13-19
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    • 2020
  • Treatment of compartment syndrome is early decompressive fasciotomy to prevent dreadful sequelae of ischemic necrosis of muscles and nerves. We experienced one patient of impending or early compartment syndrome of right forearm and hand caused by a hot compress machine. We did immediate fasciotomy on forearm and late flap coverage with skin graft in this patient with good results.

A Study on the right to be forgotten in Digital Information Societies

  • Gu, Hyung-Keun
    • 한국컴퓨터정보학회논문지
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    • 제22권10호
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    • pp.151-157
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    • 2017
  • In the case of uploading privacy information of an information owner in the Internet, the information owner may want to deliver the privacy information itself or remove such information from the search list in order to prevent third parties from accessing the privacy information of the information owner. Such a right to be forgotten may collide with the freedom of expression of a third party. The right to be forgotten, which originates from the self-determination right on privacy information based on Article 10 and 17 of the Constitution and the freedom of expression, which is based on Article 21 thereof are all relative basic rights and are both limited by Item 2 under Article 37 of the same law, which is the general limitation provision for the basic rights. Therefore, when the right to be forgotten and the freedom of expression collides, it is not possible to give priority to one of the those unilaterally. It depends on the nature of the case at hand to find a natural balance for the harmonious solution for both parties. The criteria can be the sensitivity to the privacy of the information owner caused by the disclose of the privacy information, the public benefits such information may serve, the social common good that could be expected by the disclosure of the privacy information and the damages suffered in terms of the personal interest caused by the disclosure of the information, in a comprehensive manner.

외상성 뇌손상 환자에서 대뇌피질의 재조직화: 사례보고 (Medial Reorganization of Primary Motor Cortex in Patient with Traumatic Brain Injury: a fMRI Case Study)

  • 최진호;권용현
    • The Journal of Korean Physical Therapy
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    • 제17권3호
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    • pp.421-428
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    • 2005
  • The tenn 'Brain plasticity' has been identified that our central nervous system is continuously being adapted and modulated according to environmental needs and demands, and has been used to encompass the multifarious mechanisms related to learning, development, and recovery from damage to the nervous system. The purpose of this study was to demonstrate cortical reorganization in a 26-year-old right-handed hemiparetic patient with traumatic primary motor cortex (M1) injury, using functional MRI (fMRI). The unaffected (left) primary sensori-motor cortex centered on the precentral knob was activated during unaffected (right) hand movements. However, the medial area of the injured M1 was activated during affected (left) hand movements. It seems that the motor function of the affected hand in this patient was reorganized into the medial area of the injured precentral knob. These investigations provide a great useful information and clinical evidences with the specialized clinician in stroke physical therapy about patient's prognosis and therapeutic guidelines.

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Binary Classification Method using Invariant CSP for Hand Movements Analysis in EEG-based BCI System

  • 응웬탄하;박승민;고광은;심귀보
    • 한국지능시스템학회논문지
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    • 제23권2호
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    • pp.178-183
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    • 2013
  • In this study, we proposed a method for electroencephalogram (EEG) classification using invariant CSP at special channels for improving the accuracy of classification. Based on the naive EEG signals from left and right hand movement experiment, the noises of contaminated data set should be eliminate and the proposed method can deal with the de-noising of data set. The considering data set are collected from the special channels for right and left hand movements around the motor cortex area. The proposed method is based on the fit of the adjusted parameter to decline the affect of invariant parts in raw signals and can increase the classification accuracy. We have run the simulation for hundreds time for each parameter and get averaged value to get the last result for comparison. The experimental results show the accuracy is improved more than the original method, the highest result reach to 89.74%.