• Title/Summary/Keyword: Stretches

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The Geomorphic Analysis of the Yangsan Fault Area (梁山斷層 周邊의 地形分析)

  • Jo, Wha-Ryong
    • Journal of the Korean Geographical Society
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    • v.32 no.1
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    • pp.1-14
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    • 1997
  • Yangsan Fault stretches from Yonghae to the mouth of Naktong River in the south-eastern part of Korean Peninsula. The river terraces originated from alluvial fans are classified into the High, Middle, and Low Surfaces. The High Surfaces which were distributed in fragments are considered to be formed during the Mindel/Riss Interglacial period or the former periods. But the Middle and Low Surfaces which were distributed widely are considered to be formed during the Riss and Last Glacial period respecitively. The geomorphic and geologic features around Yangsan Fault suggest that the fault is right strike-slip fault, and some geomorphic evidences of active fault were found on Eonyang and Sinkwang Basin.

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Comparison of Nerve Mobilization, Static Stretching, and Hold-Relax on Hamstring Flexibility in Stroke Patients (신경가동기법, 정적신장기법, 유지-이완기법이 뇌졸중 환자의 슬괵근 유연성에 미치는 효과 비교)

  • Seong, Jae-Hyeon;Choi, Jong-Duk
    • Physical Therapy Korea
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    • v.17 no.2
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    • pp.67-74
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    • 2010
  • The purpose of this study was to examine the acute effects of nerve mobilization, static stretching, and hold-relax on the flexibility of hamstring muscles and their surface electromyographic (EMG) responses to passive stretches in poststroke hemiparesis. This study was a randomized cross-over trial. Fourteen subjects received three treatment sessions in random order with each consisting of ten repetitions. The treatment sessions included nerve mobilization, static stretching, and hold-relax. The treatment sessions were held at least 24 hours apart to minimize any carryover effect. The outcome was measured by the distance between the greater trochanter and lateral malleolus and hamstring EMG activity during passive knee extension stretching. Repeated-measures analysis of variance showed significant changes in hamstring flexibility and EMG activity in main effect of time pre, post and followup (p<.05). However, no significant differences occurred among the three stretching techniques. No technique was consistently found to be superior. The three stretching techniques in this study make it difficult to determine the most effective technique. Therefore, clinicians use nerve mobilization of effective stretching techniques with other stretching techniques.

The Treatment of a Droopy Shoulder Syndrome Patient -A case report- (Droopy Shoulder Syndrome 환자의 치료경험 -증례보고-)

  • Park, Eun Young;Shim, Jae Kwang;Rhee, Ho Dong;Kim, Won Oak;Yoon, Kyung Bong;Yoon, Duck Mi
    • The Korean Journal of Pain
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    • v.19 no.2
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    • pp.296-298
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    • 2006
  • Droopy shoulder syndrome (DSS) is a rare disease, characterized by drooping shoulders, which stretches the brachial plexus, and causes pain, but without any signs of neurological impairment. These patients suffer from pain in the neck, shoulders, arms and hands, which result in long, graceful, swan necks, low-set shoulders, and horizontal or down sloping clavicles. No abnormalities in the vascular, neurological or electrical findings have also been known. The T1 and/or T2 bodies can be seen in the lateral view in a radiological study of the cervical spine. In the majority of cases, conservative treatments, such as postural correction and shoulder girdle strengthening exercise, are commonly recommended. However, DSS may be misdiagnosed as severe thoracic outlet syndrome or herniated cervical disc disease, leading to unnecessary and hazardous invasive treatments. The presented case was consistent with DSS, and was treated with stellate ganglion block, trigger point injection, and shoulder girdle strengthening exercise.

Molecular and Cellular Studies of Seed Storage Proteins from Rice and Wheat

  • Kim, Woo-Taek
    • Applied Biological Chemistry
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    • v.32 no.1
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    • pp.64-72
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    • 1989
  • Near full length cDNA clones encoding the rice seed storage protein, prolamine, were isolated and divided into two homology classes based on cross-hybridization and DNA sequencing analysis. These cDNA clones contain a single open reading frame encoding a putative rice prolamine precursor(M.W.=17,200) possessing atypical 14 amino acid signal peptide. Clones of these two homology classes diverge mainly by insertions/deletions of short nucleotide stretches and point mutations. The deduced primary structures of both types of prolamine polypeptides are devoid of any major tandem repetitive sequences, a feature prevalent in other cereal prolamines. No significant homology teas detected between the rice prolamine and other cereal prolamines, indicating that the rice gene evolved from a different ancestor that gave rise to other cereal prolamine genes. Developing wheat and rice endosperms were examined using ultrathin sections prepared from tissues harvested at various days after flowering. By immunocytochemical localization techniques, wheat prolamines are localized within vesicles from Golgi apparatus and in homogeneous regions of protein bodies. The involvement of the goli apparatus in the packaging of wheat prolamines into protein bodies indicates a pathway which differs from the mode of other cereal prolamines and resembles the mechanism employed for the storage of rice glutelin and legume globulins.

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Synthesis and Physical Properties of Liquid-Crystalline Polyurethanes (液晶性 Polyurethane의 合成과 物性에 關한 硏究)

  • Lee, Jong Back;Song, Jin Cherl;Choi, Dae Woong
    • Textile Coloration and Finishing
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    • v.8 no.1
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    • pp.56-63
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    • 1996
  • A number of thermotropic liquid crystalline polyurethanes with mesogenic unit were synthesized by polyaddition of a para-type diisocyanate such as 1, 4-phenylene diisocyanate(1,4-PDI) with 4, 4'-bis($\omega$-hydorxyalkoxy) biphenyls($BP{m}$) in DMF. The thermal and liquid crystab line properties were examined by differential scanning calorimetry(DSC), polarized optical microscopy, and wide-angle X-ray scattering(WAXS). Intrinsic viscosities of the polymers exbibited two endothermic peaks correspondinding to phase transitions of melting and isotropization. For example, polyurethane(1,4-PDI/($BP{11}$) ) was found to display a liquid crystalline phase between 177 to 205$^{\circ}C$. In order to know how the hydrogen bonding interaction affects the formation of mesophases in polyurethane 1, 4-PDI/($BP{8}$) / thermal processing FT-IR measurements were carried out. It was found that the stretches regarded as shift to higher frequency region with increasing temperature which showed grdually their liquid crystalline phase

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Numerical Approach Technique of Spherical Indentation for Material Property Evaluation of Hyper-elastic Rubber (초탄성 고무 물성평가를 위한 구형 압입시험의 수치접근법)

  • Lee, Hyung-Yil;Lee, Jin-Haeng;Kim, Dong-Wook
    • Elastomers and Composites
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    • v.39 no.1
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    • pp.23-35
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    • 2004
  • In this work, effects of hyper-elastic rubber material properties on the indentation load-deflection curve and subindenter deformation are first examined via finite element (FE) analyses. An optimal data acquisition spot is selected, which features maximum strain energy density and negligible frictional effect. We then contrive two normalized functions, which map an indentation load vs. deflection curve into a strain energy density vs. first invariant curve. From the strain energy density vs. first invariant curve, we can extract the rubber material properties. This new spherical indentation approach produces the rubber material properties in a manner more effective than the common uniaxial tensile/compression tests. The indentation approach successfully measures the rubber material properties and the corresponding nominal stress-strain curve.

The Effcts of Static and PNF Stretching on Range of Motion and Jump Performance in the Taekwondo Player (정적 스트레칭과 PNF 스트레칭이 태권도 선수의 관절가동범위와 점프수행능력에 미치는 영향)

  • Choi, Gong-Jib
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.11
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    • pp.1771-1776
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    • 2013
  • In order to understand how static stretch and PNF stretch affect flexibility improvement of college taekwondo players, the study evaluated the joint working range of the knee joint while testing the jump performance to see if those stretches have any influence on a functional performance. According to the results of the research, each group of the static stretch and PNF stretch was observed with significant improvements in the joint working range and the jump performance. From the comparison between the two groups, only the jump performance came up with significant differences.

Multi-Function RFID Reader be based on ARM920T Platform (ARM920T 기반의 다기능 RFID Reader Platform 기술 개발)

  • 이상신;김영길
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2004.05b
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    • pp.37-40
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    • 2004
  • This paper is about Multi-function RFID Reader Platform that receives RF TAC data and transfer data to HOST PC through Blue-Tooth USB, RS-232 and Ethernet. This Reader system is composed of RFID Module, ARM Processor, RS-232, US5 and Ethernet Interface, etc.. The information of Tag stretches the RFID module through the antenna and is received at the ARM processor. ARM processor accomplishes the facility to deliver these informations at the PC server using the Blue-tooth Interface for the wireless and the RS-232, USB and Ethernet MAC Interface for the wire.

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A Novel Adaptive Histogram Equalization based on Histogram Matching (히스토그램 매칭에 기반한 적응적 히스토그램 균등화)

  • Min, Byong-Seok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.6
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    • pp.1231-1236
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    • 2006
  • The contrast control of images with narrow dynamic range is a simple method among enhancement methods for low intensity of image. Histogram equalization is the most common method for this purpose, which stretches the dynamic range of intensity Conventional methods would fail to enhance images with extremely dark and bright regions, because of not considering the shape of histogram. In this paper, we propose a novel adaptive histogram equalization based on histogram matching with multiple Gaussian transformation function. As a result, output images with a couple of peaks of histogram could be improved and the details such as edges in dark regions could be appeared better than conventional method subjectively.

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Systematic Study of Paper Breaks in Papermaking Process Using Fracture Mechanics - (1) Evaluation of fracture Toughness in Wet State

  • Seo, Yung-B;Roh, You-Sun
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.33 no.5
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    • pp.37-44
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    • 2001
  • Fracture toughness was considered as one of the good estimates of the paper break tendency of paper web in the press room. Paper break on the paper machine is caused by many factors such as paper machine irregular vibrations, impurities in the fiber furnish, shives, and so on. On the paper machine, the solid content of paper web is changing very rapidly from less than 1% to over 95%. We tried to measure the fracture toughness of paper web at different solid contents for providing the fundamental knowledge of paper break. Stretches of wet web were also measured and compared to the fracture toughness changes. Four different fiber furnishes (SwBKP, HwBKP, ONP, and OCC) were refined to different degrees, and at different solid contents (40%, 60%, 80% and 95%), their fracture toughnesses were measured. Two fracture toughness measurement methods (essential work of fracture and Tryding's load-widening method) were used, and we found they gave identical results. The stretch curves of the wet webs against the axis of solid contents were very similar to the fracture toughness curves of those.

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