• 제목/요약/키워드: scale effect

검색결과 8,372건 처리시간 0.028초

Effect of Sihogayonggolmoryeo-Tang on Hwa-byung: A Multicenter, Randomized, Double-Blinded, Placebo-Control Trial

  • Choi, Woo-Chang;Lee, Hun-Soo;Kim, Ju-Yeon;Kang, Wee-Chang;Park, Yang-Chun;Kim, Geun-Woo;Kim, Jong-Woo;Jung, In Chul
    • 동의신경정신과학회지
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    • 제31권3호
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    • pp.135-147
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    • 2020
  • Objectives: Hwa-byung is a mental illness. It is also known as a Korean culture-related syndrome. In traditional Korean medicine, Sihogayonggolmoryeo-tang is used to treat Hwa-byung related neuropsychiatric symptoms. The purpose of this research was to examine the effect of Sihogayonggolmoryeo-tang on Hwa-byung. Methods: A multicenter, randomized, double-blinded, placebo-controlled study was performed for 160 patients with Hwa-byung. Patients were divided into a Sihogayonggolmoryeo-tang group and a placebo group. Treatment period was 8 weeks. Hamilton Rating Scale for Anxiety (HAM-A), Likert scale for major symptoms of Hwa-byung, Hwa-byung Scale (HBS), Korean Beck Depression Inventory (K-BDI), Korean State-Trait Anxiety Inventory (K-STAI), Korean State-Trait Anger Expression Inventory (K-STAXI), and Korean WHO Quality of Life Scale Abbreviated Version (WHOQOL-BREF) were used to evaluate the effect of Sihogayonggolmoryeo-tang on Hwa-byung. We also used an Instrument of Pattern Identification for Hwa-Byung to evaluate different responses for six patterns of patients. Results: Scores of all the measurements improved significantly for each group, showing no significant differences between the two groups. In the case of deficiency of both Qi and blood pattern, the Sihogayonggolmoryeo-tang group showed a significant decrease in the HAM-A score compared to the placebo group. Conclusions: The effect of Sihogayonggolmoryeo-tang on Hwa-byung did not exceed that of the placebo. Further studies involving more elaborate pattern identification are needed.

골연골종을 동반한 퇴행성 슬관절염에 구법(灸法)이 미치는 영향 (Effect of Moxibustion Therapy on the Degenerative Arthritis of Knee Joint with Osteochondroma)

  • 오명진;송호섭
    • Journal of Acupuncture Research
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    • 제29권6호
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    • pp.111-117
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    • 2012
  • Objectives : This study was done for reporting effect of moxibustion therapy on the degenerative arthritis of knee joint with osteochondroma. Methods : Two patient with degenerative arthritis of knee joint with osteochondroma was treated by moxibustion therapy. We applied moxibustion therapy three times a day for 12 days(three days per week). To investigate effectiveness of treatment we used visual analogue scale, Korean Western Ontario and McMaster Universities. Results : 1. The moxibustion therapy deceased knee joint pain. 2. As a result of evaluation by visual analogue scale, Korean Western Ontario and McMaster Universities the score marked lower than before treatment and after treatment. Conclusion : Moxibustion therapy decreased knee joint pain that patient have degenerative arthritis of knee joint with osteochondroma.

주철근 겹침이음된 휨-전단 RC교각의 실물모형 준정적 실험 (Quasi Static Test of Lap Spliced Shear-Flexure RC Piers Using Real Scale Models)

  • 곽임종;조창백;조정래;김영진;김병석
    • 한국지진공학회:학술대회논문집
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    • 한국지진공학회 2002년도 춘계 학술발표회 논문집
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    • pp.203-210
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    • 2002
  • The past bridge design specifications of Korea didn't include 1imitation on the amount of lap splices in the plastic hinge zone of piers, and so do current specifications. But these specifications include just limitation on the minimal length of lap splices. Thus, a large majority of non-seismically designed bridge piers may have lap splices in plastic hinge zone. In this study, model pier was selected among existent bridge piers whose failure mode is complex shear-flexure mode. Full scaled RC pier models whose aspect ratio is about 2.67 were constructed and quasi static test according to the drift level history was implemented. From the test results, effect of the lap splices on the seismic performance of bridges piers was analyzed, and the seismic capacity of the model bridges was evaluated by capacity spectrum method.

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뇌졸중 환자의 장애 회복이 뇌졸중 후 우울증에 미치는 영향 (The Effect of Recovery of disability on Post-stroke Depression)

  • 하미숙;박민철;구봉오
    • 대한물리의학회지
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    • 제5권4호
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    • pp.623-632
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    • 2010
  • Purpose : The purpose of this study was to identify the effect of recovery of disability on post-stroke depression in stroke patients. Methods : Fifty patients with stroke were participated in this study. The stroke impact scale(SIS) was used to assess the recovery of disability according to stroke and short form of geriatric depression scale(SGDS) was used to assess the poststroke depression(PSD). Results : The suspicious for depression were exhibited in 38%(n=19) and patients with depression were 58% (n=26) of 50 patients with stroke. In correlation between recovery of disability and depression, emotion and recovery of stroke negatively correlated with depression(p<.05). Conclusion : These results demonstrates that patients with stroke need to manage and treat emotion for the prevention and management of PSD.

Buckling temperature of a single-walled boron nitride nanotubes using a novel nonlocal beam model

  • Elmerabet, Abderrahmane Hadj;Heireche, Houari;Tounsi, Abdelouahed;Semmah, Abdelwahed
    • Advances in nano research
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    • 제5권1호
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    • pp.1-12
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    • 2017
  • In this paper, the critical buckling temperature of single-walled Boron Nitride nanotube (SWBNNT) is estimated using a new nonlocal first-order shear deformation beam theory. The present model is capable of capturing both small scale effect and transverse shear deformation effects of SWBNNT and is based on assumption that the inplane and transverse displacements consist of bending and shear components, in which the bending components do not contribute toward shear forces and, likewise, the shear components do not contribute toward bending moments. Results indicate the importance of the small scale effects in the thermal buckling analysis of Boron Nitride nanotube.

보육시설 조직커뮤니케이션과 갈등, 몰입에 관한 연구 (A Study on Teacher' Perception of Organizational Communication, Conflict, Commitment in Child Care Center)

  • 정다운;문혁준
    • 대한가정학회지
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    • 제48권10호
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    • pp.11-23
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    • 2010
  • This purpose of this study was to understand how organizational communication affects organizational conflict and commitment. This study was based on a questionnaire survey of 238 teachers working in kindergartens and childcare centers in all parts of Korea except Jeju-do. This research used the following tools: the organizational communication scale, the organizational conflict scale, and the organizational commitment scale. The results were as follows: First, satisfaction with organizational communication showed statistically significant effects(${\beta}$ = -.529, p < .001) on organizational conflict. Secondly, organizational conflict had a negative correlation(${\beta}$ = -.398, p < .001) with organizational competence. Third, organizational conflict had a moderating effect between organizational communication satisfaction and the organizational commitment. Fourth, communication satisfaction had a moderating effect between organizational conflict and organizational commitment.

시스템검증법에 의한 조종성능해석연구 (Maneuverability Analysis of a Ship by System Indentification technique)

  • 강창구;서상현
    • 한국기계연구소 소보
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    • 통권10호
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    • pp.35-48
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    • 1983
  • When the hydrodynamic coefficients of the ship maneuvering equation are estimated by captive model test, it is difficult to take account of the scale effect between model and full scale ship. This scale effect problem can be overcome by processing the sea trial data with system identification. Extended Kalman filter is used as a system identification technique for the modification of the simulation equation as well as the estimation of hydrodynamic coefficients. The phenomena of simultaneous drifting of linear coefficients occur. It is confirmed that two coefficients in each pair-($Y_v$', $Y_r$' -m' u'), ($N_v$', $N_r$' )-are simultaneously drifting and all 4 coefficients are simultaneously drifting together. Particularly simultaneous drifting of 2 coefficients in each pair is more significant. It is also shown that the simultaneous drifting of 4 coefficients can be reduced by choosing the input data which have the random v'/r' curve and 4 coefficients are estimated within 2-4% error, which may be noise level. So, it is recommended to operate the rudder randomly in sea trial or model test for the application of system identification technique.

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스월유동장의 화염전파에 미치는 난류특성의 영향에 관한 연구 (A study on the influence of turbulence characteristics on flame propagation in swirl flow field)

  • 이상준;이종태;이성열
    • 대한기계학회논문집B
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    • 제20권10호
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    • pp.3282-3292
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    • 1996
  • Flow velocity was measured using a hot wire anemometer. Turbulence intensity was in proportion to mean flow velocity regardless of swirl velocity. And integral length scale has proportional relation with swirl velocity regardless of measurement position. Flame speed calculated by radius of visualized flame was increased and then decreased according to lapse of time from spark. Maximum flame speed was increased according to increase of turbulence intensity. Burning speed and flame transport effect increased with increase of swirl velocity, but ratio of burning speed to flame speed decreased with increased of swirl velocity. Mass fraction burned versus volume fraction burned was increased in proportion to the increase of turbulence intensity, caused by increase of combustion promotion effect according to increase of turbulence intensity and scale.

오렌지 수입이 국내산 과일 및 과채 가격에 미친 영향 (An Effect of Orange Import on Domestic Fruits and Vegetables Price in Korea)

  • 조재환
    • 한국유기농업학회지
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    • 제23권4호
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    • pp.703-713
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    • 2015
  • A Linear Approximated Inverse Almost Ideal Demand System, suggested by Eales and Unnevehr, is estimated with monthly data set of Korean fruits consumption. LA/IAIDS consists of 6 demand equations which correspond to domestically produced Hanrabong, overwintering mandarin, strawberry, melon and tomato with imported orange. The results indicate that price and scale flexibilities are negative, as expected. And the significance is that a 10% increase in imported orange quantity is associated with 5.5% declines in the price of Korean Hanrabong while the price of other fruits is minimally affected. In addition, the estimate of scale flexibility of Hanrabong (-2.96) is much smaller than any other fruit. Hanrabong farmer might be in the face of deficit operation as a consequence of the substitution effect if orange would be imported in accordance with the Korea-U.S. free trade agreement.

배양조건이 Aspergillus flavus ATCC 15517의 Aflatoxin 생성에 미치는 영향 (The Effect of Cultural Conditions on the Aflatoxin Production of Aspergillus Flavus ATCC 15517)

  • 정덕화;이용욱;김용호;김성영;김종규
    • 한국환경보건학회지
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    • 제16권1호
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    • pp.45-53
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    • 1990
  • To investigate the effect of cultural condition on the aflatoxin production of Aspergillus flayus ATCC 15517, mixed culture with Aspergillus niger, better kind of media and size of Cultural vessels were examined. YES medium was better than SLS medium for this study. Small scale test tube culture was showed the possibility to simply examine the growth, total acidity, pH and aflatoxin production during cultivation, and also could reduce the second contamination of aflatoxin B1 from large scale broth cultured. Especially ELISA method is simple, sensitive and specific and therefore well suited to small scale of test tube culture. Mixed culture significantly reduced the aflatoxin production of Aspergillus fiavus ATCC 15517 and showed almost 95% inhibition of that level during the incubtation.

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