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用CFRP加固预裂钢筋混凝土梁的疲劳特征的研究(英文)

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南昌工程学院学报 2007年第3期26卷 7-14页

作者：吴泽仪 j.-L. clément C. Boulay j.-L. Tailhan j.an Muller国际咨询公司中央路桥实验室

通过对碳纤维织物加固的预裂钢筋混凝土(RC)梁的三点弯曲试验,给出了其疲劳特征实验研究结果.RC梁(200 mm×150 mm×700 mm)被施加预载直到所产生的两裂缝的宽度之和为0.7 mm,然后用碳纤维织物进行抗弯和抗剪加固.碳纤维织物在裂缝处的... 详细信息

通过对碳纤维织物加固的预裂钢筋混凝土(RC)梁的三点弯曲试验,给出了其疲劳特征实验研究结果.RC梁(200 mm×150 mm×700 mm)被施加预载直到所产生的两裂缝的宽度之和为0.7 mm,然后用碳纤维织物进行抗弯和抗剪加固.碳纤维织物在裂缝处的联结作用,可使RC梁在静载和疲劳载荷作用下其裂缝宽度减小,且在碳纤维和钢筋间产生应力重分布.实验结果表明,通过碳纤维织物加固的预裂钢筋混凝土梁,其刚度、极限结构强度及极限疲劳强度都得到明显改善.

关键词：疲劳钢筋混凝土梁碳纤维织物加固

Giant hepatic extra-gastrointestinal stromal tumor treated with cytoreductive surgery and adj.vant systemic therapy:A case report and review of literature

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World j.urnal of Gastrointestinal Surgery 2021年第3期13卷 315-322页

作者： Michel Ribeiro Fernandes Caroline Lorenzoni Almeida Ghezzi Tomaz j.M Grezzana-Filho Flávia Heinz Feier Ian Leipnitz Alj.mir Duarte Chedid Carlos Thadeu Schmidt Cerski Marcio Fernandes Chedid cléber RositoPinto Kruel Department of Gastrointestinal Surgery and Transplantation Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil Division of Radiology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-903RSBrazil Department of Pathology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil

BACKGROUND Primary extra-gastrointestinal stromal tumors(E-GIST)of the liver are *** clinical presentation may range from asymptomatic to bleeding or manifestations of mass *** surgery followed by adj.vant therapy with imatinib is the standard of ***,under specific circumstances,a cytoreductive approach may represent a therapeutic *** describe herein the case of an 84-year-old woman who presented with a tender,protruding epigastric *** computed tomography scan revealed a large,heterogeneous mass located across segments III,IV,V,and VIII of the *** initial approach was transarterial embolization of the tumor,which elicited no appreciable *** the large size and central location of the tumor and the advanced age of the patient,non-anatomic complete resection was *** to substantial intraoperative bleeding and hemodynamic instability,only a near-complete resection could be *** and immunohistochemical staining confirmed the diagnosis of primary E-GIST of the *** the risk/benefit ratio for therapeutic options,debulking surgery may represent a strategy to control pain and prolong *** SUMMARY Here,we present a case report of a patient diagnosed with E-GIST primary of the liver,which was indicated a cytoreductive surgery and adj.vant therapy with *** E-GIST primary of the liver is a rare conditional,the treatment is with systemic therapy and total resection ***,a cytoreductive surgery will be necessary when a complete resection is no possible.

关键词： Extra-gastrointestinal stromal tumor Primary gastrointestinal stromal tumor of the liver Cytoreductive surgery Debulking surgery Case report

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罗德里格斯岛之旅

Real space:the common dimension of Ergonomics and Architecture

作者： (法)勒克莱齐奥(j. M. G. Le clézio)

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Real space:the common dimension of Ergonomics and Architectu...

Assessment of Water Quality in Tigris River-Iraq by Using GIS Mapping

第十七届国际工效学大会暨中国人类工效学会成立20周年庆祝大会

作者： cláudia Bartolo Patterson Universidade de Brasília/Conselho da j.stia Federal j.lia Issy Abraho Universidade de Brasília

This paper deals with the adoption of the Ergonomics perspective to understand human work activities and its requirements for architectural *** associates a complementary approach using different tools,comparing data supported by the interdisciplinary principle,and considering the diversity of variables and the multiplicity of active *** this perspective,the ergonomic analysis reveals the contradictions and the difficulties faced by workers during their routine activities,while considering the different points of view involved in the work *** dimensions were distinguished into procedures and concepts,related to the way the results were incorporated into the process of architectural design.

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Natural Resources 2013年第6期4卷 441-448页

作者： Abbas j. Kadhem Environmental Research Center University of Technology Baghdad Iraq

In this study, 96 water samples were collected from the Tigris River within Baghdad city. These samples were used for studying the physical and chemical parameters by using a geographical information system GIS (spatial analysis). The analytical results show high concentration of total dissolved solid (TDS), electric conductivity (EC), total hardness, Sulphate (SO4), Chloride (cl) and Iron (Fe), which indicates signs of deterioration. On the other hand, the values of pH, calcium (Ca), Magnesium (Mg), and fluoride (F) are within permissible limits as per World Health Organization (WHO) and Iraqi Criteria.

关键词： Tigris River Water Quality GIS

卵巢癌患者^(111)In-OC125的放射免疫显像

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北京大学学报（医学版） 1989年第S1期31卷 58-60页

作者：朱家瑞 j.Lumbrose cl'Homme M Ricard V Edeline j.C Saccavini MTubiana CParmentier 北京市肿瘤防治研究所 hstitutGustave-RoussyetINSERMU66 Villejuif France CEA-ORIS Guf-sur-Yvette France

9例卵巢癌术后、血清CA125升高的患者,用^(111)In-OC125放射免疫显像(RIS)判断复发或转移。4例经二次手术和CT证实的RIS阳性者中有3例是RIS首先发现复发或转移。5例RIS阴性者,3例证实为真阴性,2例为假阴性,RIS诊断正确为7/9。提示RIS可... 详细信息

9例卵巢癌术后、血清CA125升高的患者,用^(111)In-OC125放射免疫显像(RIS)判断复发或转移。4例经二次手术和CT证实的RIS阳性者中有3例是RIS首先发现复发或转移。5例RIS阴性者,3例证实为真阴性,2例为假阴性,RIS诊断正确为7/9。提示RIS可能作为判断卵巢癌及其复发转移的重要方法。

关键词：卵巢癌抗体,单克隆 111铟放射免疫显像

Identification of Premature Ventricular Contraction (PVC) Caused by Disturbances in Calcium and Potassium Ion Concentrations Using Artificial Neural Networks

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Health 2014年第11期6卷 1322-1332页

作者： j.lio César Dillinger Conway Caroline Araúj. Raposo Sergio Diaz Contreras j.dson cláudio Belchior Department of Chemistry—ICEx Federal University of Minas Gerais Belo Horizonte Brazil

Abnormalities in the concentrations of metallic ions such as calcium and potassium can, in principle, lead to cardiac arrhythmias. Unbalance of these ions can alter the electrocardiogram (ECG) signal. Changes in the morphology of the ECG signal can occur due to changes in potassium concentration, and shortening or extension of this signal can occur due to calcium excess or deficiency, respectively. The diagnosis of these disorders can be complicated, making the modeling of such a system complex. In the present work an artificial neural network (ANN) is proposed as a model for pattern recognition of the ECG signal. The procedure can be, in principle, used to identify changes in the morphology of the ECG signal due to alterations in calcium and potassium concentrations. An arrhythmia database of a widely used experimental data was considered to simulate different ECG signals and also for training and validation of the methodology. The proposed approach can recognize premature ventricular contractions (PVC) arrhythmias, and tests were performed in a group of 47 individuals, showing significant quantitative results, on average, with 94% of confidence. The model was also able to detect ions changes and showed qualitative indications of what ion is affecting the ECG. These results indicate that the method can be efficiently applied to detect arrhythmias as well as to identify ions that may contribute to the development of cardiac arrhythmias. Accordingly, the actual approach might be used as an alternative tool for complex studies involving modifications in the morphology of the ECG signal associated with ionic changes.

关键词： Arrhythmia Calcium and Potassium Disorders Electrocardiogram Artificial Neural Network

Epidemiology of Low Birth Weight in the Lake Areas of Cotonou (Benin Republic)

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Open j.urnal of Epidemiology 2023年第3期13卷 218-234页

作者： Gbèmahon Roger Houssou Colette Sylvie Azandj.me Nadia Fanou clémence Germaine Metonnou Charles j.rôme Sossa Regional Institute of Public Health University of Abomey-Calavi (UAC) Ouidah Benin Faculty of Agronomic Sciences University of Abomey-Calavi Abomey-Calavi Benin

Introduction: Low birth weight is a significant public health problem worldwide, particularly in low-and-middle-income countries. This study aimed to investigate the epidemiology of low birth weight in the lake areas of Cotonou. Methods: A cross-sectional analytical study included 931 records of women who gave birth in 2022 in the Cotonou 1-4 health zone. Completed maternity records were included in this study, except for premature births and congenital malformations. Birth weight was the dependent variable. Sociodemographic, obstetrical, preventive care and child-related data were collected using a digitized form. These data were analyzed using SPSS software to determine the prevalence and factors associated with low birth weight using multiple logistic regression analysis. Results: The prevalence of low birth weight was 16.30%. Factors related to this prevalence were non-use of mosquito nets during pregnancy (OR = 2.72;CI: 1.275 - 5.805), twin pregnancy (OR = 9.97;CI: 3.869 - 25.696), previous abortion (OR = 1.61;CI: 1.034 - 2.515), low number of pregnancy (OR = 3.97;CI: 1.276 - 12.393), trimester of first antenatal visit (OR = 3.47;CI: 1.821 - 6.638) and birth size less than 45 cm (OR = 5.98;CI: 2.965 - 12.083). Conclusion: The prevalence obtained from this study j.stifies the need to support pregnant women in this health zone. It is, therefore, essential to strengthen communication and health promotion strategies for women before, during, and after pregnancy.

关键词： Low Birth Weight Pregnant Women Lake Areas Cotonou

Ab initio valence-space in-medium similarity renormalization group calculations for neutron-rich P,cl,and K isotopes

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Chinese Physics C 2024年第7期48卷 181-190页

作者：谢萌冉沈留媛李健国李红蕙袁琪左维 Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

Neutron-rich P,cl,and K isotopes,particularly those with neutron numbers of approximately N=28,have attracted extensive experimental and theoretical *** utilize the ab initio valence-space in-medium similarity renormalization group approach,based on chiral nucleon-nucleon and three-nucleon forces,to investigate the exotic properties of these *** calculations of the low-lying spectra are performed.A key finding is the level inversion between 3/2_(1)^(+)and 1/2_(1)^(+)states in odd-A isotopes,attributed to the inversion ofπ0xod_(3/2) andπls_(1/2) single-particle *** ab initio calculations,which incorporate the three-nucleon forces,correlate closely with existing experimental *** calculations of effective proton single-particle energies provide deeper insights into the shell evolution for Z=14 and 16 *** results indicate that the three-body force plays important roles in the shell evolution for Z=14 and 16 sub-shells with neutron numbers ranging from 20 to ***,systematic ab initio calculations are conducted for the low-lying spectra of odd-odd *** results correspond with experimental data and provide new insights for future research into these isotopes up to and beyond the drip line.

关键词： ab initio calculations shell evolution low-lying spectra