• Title/Summary/Keyword: fire evidence

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Acupuncture for Symptomatic Rotator Cuff Disease: A Systematic Review and Meta-Analysis

  • Choi, Seoyoung;Lee, Jisun;Lee, Seunghoon;Yang, Gi Young;Kim, Kun Hyung
    • Journal of Acupuncture Research
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    • v.38 no.1
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    • pp.20-31
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    • 2021
  • The objective was to evaluate the effectiveness and safety of acupuncture for patients with rotator cuff diseases. There were 12 electronic databases and 3 trial registries searched up to November 30th, 2019. All randomized trials were eligible, regardless of language, date of publication, or settings. The primary outcomes were pain, shoulder function, and proportion of improved participants assessed within 12 weeks of randomization of the trial. The Cochrane risk of bias for the studies was assessed. Effects sizes were presented as a risk ratio, mean difference, or standardized mean difference with a 95% confidence intervals. Grading of Recommendations Assessment, Development and Evaluation approach was adopted to rate certainty of evidence. Of the 3,686 records screened, 28 randomized trials (2,216 participants) were included in this review. The types of acupuncture included manual acupuncture, dry needling, electroacupuncture, acupotomy, warm needle acupuncture, and fire needle acupuncture. All of the studies had an unclear or high risk of bias related to more than 1 domain. Significant benefits of acupuncture in terms of pain and shoulder function were observed in all comparisons, however, the proportion of improved participants was not described in 2 comparisons. There was substantial heterogeneity among meta-analyzed trials. No serious harm was observed. For primary outcomes, the overall certainty of evidence was very low. There was very low certainty of evidence for the benefits of acupuncture for patients with rotator cuff diseases. The safety of acupuncture remains unclear due to the incompleteness of reporting. Future well-designed randomized trials with transparent reporting are required.

Three-dimensional FE analysis of headed stud anchors exposed to fire

  • Ozbolt, Josko;Koxar, Ivica;Eligehausen, Rolf;Periskic, Goran
    • Computers and Concrete
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    • v.2 no.4
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    • pp.249-266
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    • 2005
  • In the present paper a transient three-dimensional thermo-mechanical model for concrete is presented. For given boundary conditions, temperature distribution is calculated by employing a three-dimensional transient thermal finite element analysis. Thermal properties of concrete are assumed to be constant and independent of the stress-strain distribution. In the thermo-mechanical model for concrete the total strain tensor is decomposed into pure mechanical strain, free thermal strain and load induced thermal strain. The mechanical strain is calculated by using temperature dependent microplane model for concrete (O$\check{z}$bolt, et al. 2001). The dependency of the macroscopic concrete properties (Young's modulus, tensile and compressive strengths and fracture energy) on temperature is based on the available experimental database. The stress independent free thermal strain is calculated according to the proposal of Nielsen, et al. (2001). The load induced thermal strain is obtained by employing the biparabolic model, which was recently proposed by Nielsen, et al. (2004). It is assumed that the total load induced thermal strain is irrecoverable, i.e., creep component is neglected. The model is implemented into a three-dimensional FE code. The performance of headed stud anchors exposed to fire was studied. Three-dimensional transient thermal FE analysis was carried out for three embedment depths and for four thermal loading histories. The results of the analysis show that the resistance of anchors can be significantly reduced if they are exposed to fire. The largest reduction of the load capacity was obtained for anchors with relatively small embedment depths. The numerical results agree well with the available experimental evidence.

The Solar Nebular on Fire: A Solution to the Carbon Deficit in the Inner Solar System

  • Lee, Jeong-Eun;Bergin, Edwin A.;Nomura, Hideko
    • The Bulletin of The Korean Astronomical Society
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    • v.35 no.1
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    • pp.91.1-91.1
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    • 2010
  • Despite a surface dominated by carbon-based life, the bulk composition of the Earth is dramatically carbon poor when compared to the material available at formation. Bulk carbon deficiency extends into the asteroid belt representing a fossil record of the conditions under which planets are born. The initial steps of planet formation involve the growth of primitive sub-micron silicate and carbon grains in the Solar Nebula. We present a solution wherein primordial carbon grains are preferentially destroyed by oxygen atoms ignited by heating due to stellar accretion at radii < 5 AU. This solution can account for the bulk carbon deficiency in the Earth and meteorites, the compositional gradient within the asteroid belt, and for growing evidence for similar carbon deficiency in rocks surrounding other stars.

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A Study on Response Time Index for Sprinkler Head (스프링클러 헤드의 응답시간지수 측정)

  • 태순호;이병곤
    • Journal of the Korean Society of Safety
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    • v.5 no.3
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    • pp.51-55
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    • 1990
  • This study describes the engineering approach adopted to investigate sprinkler head during the early stage of a fire when they are subjected to convective heating and low gas velocities. Comparions are made between the parameters derived using basic methods, ie. ramp test, for evaluating sprinkler parameters(time constant, response time index) is illustrated. Evidence is presented that the propotion of heat loss by conduction from a sprinkler element may very typically employed in the rate of rise test. This fact alone may justfy the precautionary need to perform a limited number of rate of rise tests to confirm a sprinklers capacity to function correctly in reasonably unfavourable yet realistic conditions. The work is aimed primarily at meeting the needs of sprinkler industry.

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The cause analysis of explosion on junction termination of 345kV cable (345 kV 케이블 종단접속부에서의 폭발사고 원인분석)

  • Shong, Kil-Mok;Bang, Sun-Bae;Kim, Chong-Min;Kim, Young-Seok;Choi, Myeong-Il
    • Congress of the korean instutite of fire investigation
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    • 2010.12a
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    • pp.63-79
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    • 2010
  • It is found to the arc trace on the junction termination of 345kV cable. According to the analysis of the cable material is judged to be good. Manufacturing and design problems are not considered. In construction defects, it was estimated to the low level of insulation oil. In the majority of the arc trace appeared XLPE is found. However, there is no Soots mark, yellow band has not been confirmed, not associated with a radial arc of the spider leg is not evidence. In other opinions, void, contamination or jut are not found on the inside of XLPE. Thus, by the attachment of the impurities in surface of XLPE insulation is judged to the breakdown.

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Legal Reviews and Countermeasures against Violence to 119 Emergency Medical Technicians (EMT) (119구급대원의 폭행피해에 대한 법적인 고찰 및 대응방안)

  • Lim, Jae-Man;Choi, Eun-Sook
    • Fire Science and Engineering
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    • v.24 no.2
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    • pp.154-161
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    • 2010
  • There have been various discussions to prevent violence to 119 emergency medical technicians, and the aims of the were as follow ; first, the staff dispatched to the scene should be reinforced so that the patients committing violent acts can be subdued. Secondly, self-defense devices should be provided to 119 emergency medical technicians so that they can use them in a dangerous situation and escape from it. And finally, 119 emergency medical technicians should be allowed to refuse to transport the patients when they or their guardians do violence to them in order to prevent potential violent cases. When countermeasures after violence is committed, it is important to secure evidence and determine strongly to bring charges to the offenders rather than agree to overlook the violence in order to correct them right. It is necessary to introduce a support program to help the victim technicians concentrate on their physical and mental treatment. Violence to 119 EMT should be punished so that the society will think it is natural to punish such offenders. In a safer environment, 119 EMT can perform their duties and it is very important to draw this consensus.

Differences of Symptom Improvement Between Different Diagnosis Classification Groups in Acute Cerebral Infarction Patient (급성기 뇌경색 환자의 변증군간 호전도 차이에 대한 연구)

  • Hyun, Sang-ho;Lee, Eun-chan;Kwak, Seung-hyuk;Woo, Su-kyung;Park, Ju-young;Jung, Woo-sang;Moon, Sang-kwan;Cho, Ki-ho;Park, Sung-wook;Ko, Chang-nam
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.13 no.1
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    • pp.52-62
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    • 2012
  • Object : The aim of this study was to examine the differences of symptom improvement between different diagnosis classification groups in acute cerebral infarction patients. Methods : We studied inpatients within a month after the onset of cerebral infarction who were admitted at Kyunghee University Oriental Medical Center from May 2011 to October 2012. We compared the improvement of Motricity Index and Scandinavian Stroke Scale score between Fire-heat group(n=20), Yin deficiency group(n=31), Dampness-phlegm group(n=30), and Qi deficiency group(n=13). Results : Yin deficiency group patients with cerebral infarction showed the most improvement in MI and SSS scores, and patients in Fire-heat group showed the poorest improvement in MI and SSS scores. There was a significant difference between the two groups, but there were no significant differences between all four diagnosis classification groups. Conclusions : This study provides evidence that diagnosis classification could be considered as an important factor in predicting the prognosis of acute cerebral infarction.

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A Study on Conditional Access System for Data Confidential using Smart-Card (스마트 카드를 이용한 자료 유출 제한 시스템에 대한 연구)

  • 김신홍;이광제
    • Journal of the Institute of Electronics Engineers of Korea TE
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    • v.37 no.5
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    • pp.125-131
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    • 2000
  • In this paper, we proposed conditional access algorithm for data confidential using smart card. This algorithm is constructed smart card and E-mail gateway for restricting of user's illegal confidential data transmission. After processing of certification procedure in smart card, each E-mail forwarded to E-mail gateway(EG). The EG selects outgoing E-mail and it is sent to fire-wall E-mail processing program, it is checked attached file in transmission mail and if it is attached file, it writes to database. This time, it can be used evidence data about user's illegal confidential data transmission, because of using registered content and smart card certification data in database. in addition to, we can get psychologically effect of prevention to send illegally, and this system can prevent spam mail in EG, also.

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Digital Watermarking Method for User's Certification of Camera-Phone (카메라 폰 상에서 사용자 인증을 위한 디지털 워터마킹 기법)

  • Lee, Seung-Ik;Sohn, Jae-Sik;Im, Sung-Woon;Kim, Duk-Gyoo
    • Journal of Korea Society of Industrial Information Systems
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    • v.13 no.3
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    • pp.1-8
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    • 2008
  • In the event of a traffic accident, a fire accident, or a criminal act, anyone will be able to capture these important moments and use authentic photographs for evidence purposes. Digital watermarking is able to ensure that the digital photographs taken from a particular camera-phone are authentic and indeed. This paper presents a blind image watermarking technique for digital phone camera. This method is based on singular value decomposition (SVD) and wavelet decomposition. Experimental results show that the proposed technique performs well in security and robustness against JPEG compression.

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