• 제목/요약/키워드: Body stiffness

검색결과 495건 처리시간 0.026초

류마티스 질환자의 피로와 통증 비교연구 -강직성척추염, 섬유조직염, 루프스환자를 중심으로- (A Comparison Study on Fatigue and Pain in Rheumatoid Patients - centered on AS, FM, and SLE patients)

  • 이여진;임난영;이은영
    • 성인간호학회지
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    • 제12권4호
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    • pp.560-572
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    • 2000
  • This study was designed to offer descriptive data for nursing intervention for relief of fatigue and pain, and to distinguish by the characteristic difference and the symptoms such as fatigue and pain on Ankylosing Spondylitis (AS), Fibromyalgia(FM), and Systemic Lupus Erythematosus(SLE) patients. The sample consisted of 92 patients(AS 29; FM 30; SLE 33) who visited H-University Rheumatism Hospital in Seoul. The data were collected by a structured questionnaire from May 1, 1999 to April 30, 2000. The results were as follows: Patients of 95% experienced fatigue in the last week and a fatigue score of three disease groups were above average. The fatigue score of FM patients was highest in the other disease, but which was not a statistically significant difference(F=1.417, p=.248). The mean score of AS and FM patients in pain was higher than the SLE patients, and there was the statistical significance among the three groups on pain (F=8.239, p=.001). There wasn't a statistical difference among three groups on coping wtih pain(F=1.451, p=.240). There wasn't any correlation between fatigue and pain in each disease (AS: r=.008, p=.966; FM: r=.328, p=.077; SLE: r=.237,p=.185). Therefore, morning stiffness and pain management during sleeping is needed through good body alignment in the AS patients. Adequate rest for fatigue and multiple coping strategies for pain maybe basic nursing intervention in FM and SLE. According to their fatigue rhythm, a regular exercise program is needed for rheumatic disease because they complained of fatigue above average and their fatigue was repeated better and worse only during the one week.

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능동형 차량 현가장치의 성능 향상을 위한 구조 최적화 (Structural Optimization of Active Vehicle Suspension Systems)

  • 김창동;정의봉
    • 대한기계학회논문집
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    • 제17권6호
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    • pp.1381-1388
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    • 1993
  • 본 연구에서는 구조계와 제어계가 결합된계에 대하여, 성능 평가함수의 구조 설계변수에 대한 감도를 Riccati방정식으로부터 직접 해석할 수 있는 효율적인 방안을 제시하여 동시최적설계가 가능토록한다. 그리고 유색잡음의 불규칙 노면입력을 받는 차체탄성을 고려한 Hac의 2륜 차량의 모델에 LQG제어를 행한 경우에 대하여, 본 연구 방법을 적용시켜 동시 최적화를 수행한 제어성능 특성을 종래의 최적제어만에 의한 제어성능과 비교, 검토 한다. 구조설계변수로는 현가장치의 강성특성, 감쇠특성 및 현가장치 지지점의 위치로 선정한다.

기능성 가공된 견직물의 태 (Objective Hand of High-performance Silk Fabrics)

  • 김현아;유효선
    • 한국의류학회지
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    • 제34권5호
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    • pp.754-764
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    • 2010
  • Most silk fabrics are produced only after the degumming process to make the best use of the properties and have restricted silk processing that do not hinder their performance. However, considering the highly increased preference for natural fibers and the shortage of raw silk, high-quality upgraded silk product functions are required by the development of a processing technology and a good design. This study analyzes the changes with the samples by the functional finish such as softening finishing, wash and wear, tannin weighting by measuring the objective hand of scoured silk and three finished ones using KES-FB. As a result, the change of objective hand of finished silk fabrics that improves functionality was analyzed and compared. The increase of KOSHI after the finish became stiffer show that the silk fabric samples are appropriate for summertime clothes with the retention of a certain clothing climate for the body. The stiffness of finished fabrics for the normal had a closer relationship with the density of fabrics than the type of finishing. The samples (after the softening finishes) maintain better elasticity according to the properties of the softener and the finishing agent. Although the specimens of this study were thin fabrics, their elasticity against compression increased after the softening finishes and became softer than degummed silk. The surface properties of georgette were changed by all types of finishing.

필라멘트로 구성(構成)된 위편성물(緯編成物)및 모델의 광학적(光學的) 특성(特性)에 관(關)한 연구(硏究) (A Study on the Optical Properties of the Filament Yarn Weft Knit Fabrics and the 3-dimensional Model)

  • 신혜선;김종준;전동원
    • 패션비즈니스
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    • 제6권5호
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    • pp.1-11
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    • 2002
  • Today, great percentage of apparel fabrics comprise knit products. A few apparel items are almost exclusively made from knit products including sweaters, T-shirts, lingerie, and hosiery. In weft knits, intermeshing yarn traverses the fabric crosswise. The production rate of knitting machines is about four times higher than that of conventional looms iin proportion to the amount of fabric produced per unit time. Knit apparels fabrics are noted for freedom of body movement, easy-care, resilience, soft draping and quality. The appearance of fabrics is of prime importance along with tactile features such as smoothness, crispness, stiffness when we deal with the handling evaluation of the textiles. In practice, the quality and performance of fabrics judged by sighted evaluators, and it is perhaps logical, in attempting to establish an effective fabric objective measurement system. It is worthwhile to make objective measurement that correlate well with subjective evaluations made by sight and touch together. However, it often imposes difficulties to effectively measure and analyze the appearance or optical properties of the textile surface features. In this study, an attempt is made to provide a preliminary approach to the analysis of the gloss property, which is one of the optical properties of fabrics. The specimens range from 70/24 nylon 6 filament yarn knit fabric to 70/68 nylon 6 filament yarn knit fabric, the latter being finer. A few three-dimensional models based on Peirce's model of knit stitch have been proposed and material properties were given to calculate the properties. Goniophotometric measurements of the specimens were also carried out.

대하증(帶下症)의 형상의학적 치료 (Treatment of morbid leukorrhea with Hyungsang Medicine)

  • 김혜경;강경화;이용태
    • 동의생리병리학회지
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    • 제21권2호
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    • pp.539-542
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    • 2007
  • After analyzing the cases of treating female patients troubled with morbid leukorrhea, the writer drew the conclusions as follows. The shapes of patients with morbid leukorrhea show a large number of shapes of Gi type, Sin type or being inclined to be vigorous Gi, to have depressive syndrome due to disorder of Gi, to be Fire's nature flared upward, to become retention of phlegm and fluid, to become retention of Gi or to become retention of heat, or San syndromes. Accompanied syndromes of morbid leukorrhea appear over the body of upper, middle or lowe portion. In lower cho, the symptoms are menopathy, menstrual irregularities, menstrual irregularities, oligomenorrhea, itching of external genitals, San syndromes, infertility, lumbago which are connected with uterus. And in the middle cho, those are indigestion, nausea, distress in the stomach, vomiting, swallowing acid connected with digestive organs. And also in the upper cho, globus hystericus, chest distress, headache, dizziness, neck stiffness, heat in the upper, pimples connected with upper cho are appeared. Among the prescriptions of treatment for morbid leukorrhea, Ijintang was applied with the widest range of all. Besides that there were mainly prescribed for symptoms such as Gamisachil-tang, Haenggihyangso-san, Gamigwibi-tang, hyangsapyeongwi-san, Onkyung-tang, Banchong-san, Yongdamsagan-tang, Sogampaedok-san, Ojeok-etc.

제진재 경량화를 위한 설계 프로세스 연구 (Study on the Design Process to minimize the Weight of the Damping Material)

  • 김기창;권요섭;김찬묵;김진택
    • 한국소음진동공학회논문집
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    • 제22권2호
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    • pp.115-122
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    • 2012
  • Sound packages and damping materials have been widely applied on the floor to decrease the interior noise of a vehicle. Based on the previous researches on the low-noise vehicles, weight optimization through minimization of damping material usage is required while decreasing mid and high frequency range noise by application of sound packages. This paper describes the analysis process of robust design of vehicle body structure before applying damping materials and focuses on the analysis and test process of the location optimization at the stage of damping material application. A vibration experiment for the analysis of floor panel velocity with respect to the excitation of suspension attachment parts at the underfloor of a vehicle is performed. And through the improvement correlation between FEA and TEST, a design guide to optimize damping materials application in the early design stage is proposed. A research on vibration damping steel sheets and liquid acoustic spray on deadener(LASD) is performed to minimize manufacturing time and to minimize the space for pre-existing asphalt damping materials. As results of this study, panel stiffness is achieved through curved surface panel and bead optimization. And test baseline of optimum design is suggested through damping material optimization. And finally, through re-establishing the analysis process for vibration reduction of vehicle floors and lightweight design of damping materials, it is possible to design damping materials efficiently in the preceding stage of design.

점용접이음재의 피로수명 예측기법에 관한 연구 (A study on the Fatigue Life Prediction Method of the Spot-welded Lap Joint)

  • 손일선;배동호
    • 한국자동차공학회논문집
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    • 제8권3호
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    • pp.110-118
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    • 2000
  • For reasonable fatigue design and estimation of fatigue durability considered fatigue strength and stiffness of the automotive body structure, many fatigue data must be insured according to the shapes, materials, and welding conditions of the spot welded lap joints. However, because it is actually difficult problem, there is need to establish a new method to be able to predict its fatigue life without any additional fatigue tests. Therefore, In order to improve such problems, in this study, the maximum stress function presenting the $\delta\sigma_{1max}―\delta P$ relation was defined form the relation between $\delta\sigma_{1max}-N_f$ and ${\delta}P-N_f$. By using the fatigue data on the IB type spot-welded lap joints previously obtained from the fatigue test results, fatigue life of the spot-welded lap joint previously obtained from the fatigue test results, fatigue life of the spot-welded lap joint having a certain dimension was tried to predict without any additional fatigue tests. And, its result was verified by ${\delta}P-$N_f$ curves. Obtained conclusion are as follows, 1) a maximum stress function considered the relation of the maximum principal stress, fatigue load, and the effects of geometrical factors of the IB type spot-welded lap joint was suggested. 2) the fatigue life predicted by the maximum principal stress function and the relation of $\delta\sigma_{1max}-N_f$ was well agreed with the fatigue life obtained through the actual fatigue test result. 3) the fatigue life of the IB type spot-welded lap joint having a certain dimension is able to be predicted without any additional fatigue tests from the fatigue life prediction method by the maximum principal stress function.

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문헌조사에 근거한 부직포 보강토옹벽의 거동에 관한 연구 (A Study on the Deformation Behavior of Nonwoven Geotextiles Reinforced Soil Walls Based on Literature Reviews)

  • 원명숙;김태완;노재균;김형완
    • 한국지반신소재학회논문집
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    • 제9권1호
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    • pp.21-30
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    • 2010
  • 이 논문에서는 부직포로 보강된 옹벽의 거동에 대한 이해를 돕기 위해 문헌연구를 통해 부직포의 하중-인장특성과 흙-보강재 경계면에서의 마찰특성, 실내모형실험 및 현장사례 등을 분석하였다. 분석결과 부직포는 구속압에 비례하여 강성과 인장강도가 증가하고, 흙-보강재 경계면에서의 전단강도는 지오그리드보다 큰 것으로 나타났다. 모형보강토옹벽 실험결과 부직포로 보강된 옹벽의 재하초기 변형은 지오그리드로 보강된 옹벽보다 크나 어느 시점을 지나면 지오그리드로 보강된 옹벽보다 작게 나타났다. 사례분석결과 부직포로 보강된 보강토옹벽이 영구 구조물로 사용되기 위해서는 전면벽체의 강성이 충분히 커야하고, 선 보강토체 후 일체형 현장 타설 콘크리트 전면벽체 구축시스템에 의해 옹벽을 구축할 경우 보강재로 부직포, 뒤채움재로 현지발생 불량토의 활용이 가능하고, 연약지반상에도 적용이 가능한 것으로 나타났다.

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비대칭단면을 갖는 박벽 공간뼈대구조의 횡-비틂 후좌굴 유한요소해석 (Lateral-Torsional Post-Buckling Analyses of Thin-Walled Space Frames with Non-symmetric Sections)

  • 박효기;김성보;김문영;장승필
    • 한국강구조학회 논문집
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    • 제11권2호통권39호
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    • pp.153-165
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    • 1999
  • 비대칭단면을 갖는 박벽 공간뼈대구조의 횡후좌굴거동을 조사하기 위하여 기하학적 비선형 유한요소 해석법을 제시한다. 대변형효과를 고려한 연속체의 증분평형방정식으로부터, 도심에서 정의되는 딤(warping)함수를 고려하고 유한한 회전각의 2차항 효과를 포함하는 변위장을 도입하여 초기응력을 받는 박벽 공간뼈대요소의 증분평형방정식을 유도한다. 박벽 공간뼈대구조를 유한요소로 나누고 변위장을 요소변위에 관한 Hermitian 다항식으로 나타내어 이를 평형방정식에 대입함으로써 접선강도행렬을 유도한다. 또한 updated Lagrangian co-rotational formulation에 근거하여, 증분변위로부터 강체회 전변위와 순수변형성분을 분리시켜서 강체회전은 요소의 방향변화를 결정하고, 순수변형은 부재력증분을 산정하는 불평형하중 산정법을 제시한다.

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Septic Arthritis 후유증 환자 1례에 대한 치험례 보고 (A case of Sequelae of Septic Arthritis treated by the Therapy of Oriental medicine)

  • 전형준;이주형;남상수;김용석
    • Journal of Acupuncture Research
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    • 제18권5호
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    • pp.204-212
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    • 2001
  • Objective : Septic arthritis is a disease of when bacterial infection causes inflammatory reactions to occur in the body's joints. Following damage, stiffness, and disformity may occur in the joints. Initially antibiotic treatment is used. Later treatment is the preservation and rehabilitation of the joints. Here we report a case of sequelae of septic arthritis, which is treated and managed by ways of oriental medicine. Methods : We considered that symptoms like fever, arthralgia and ankylosis were similar to Yeol-bi(熱痺) and the patient's constitution was Soyang-in(少陽人). So Yangguksanhwa-tang(凉膈散化湯) was used as medication, and acupuncture, TENS, rehabilitation treatment was carried out. Also Kinesio & Cross(Geok-ja(격자)) taping therapy was done after the contact test. Results : After 4-7 days from the end of antibiotic treatment, the patient regained movement in the joints. After 3 weeks, the patient was able to support his own weight, and one week later joints were restored to nearly normal range. Therefore sequelae of Septic arthritis is thought to be treated earlier when the above treatment is used, compared to western treatment, which mainly consist of antibiotic treatment. Conclusion : This case was managed by herbal medicine, acupuncture, TENS, rehabilitation treatment, and Kinesio & Cross(Geok-ja) taping therapy on sequelae of Septic arthritis. Earlier improvement was gained comparatively to western treatment, which mainly consist of antibiotic treatment.

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