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Journal of Central South University 2018年第8期25卷 1849-1861页

作者： KHANZADEH GHARAHSHIRAN Mohammad reza KHOSHAKHLAGH ali KHALAJ Gholamreza BAKHTIARI Hamid banihashemi ali reza Center for Advanced Engineering Research Majlesi Branch Islamic Azad University Young Researchers and Elites Club Science and Research Branch Islamic Azad University Young Researchers and Elites Club Saveh Branch Islamic Azad University Department of Materials Engineering Najafabad Branch Islamic Azad University Department of Materials Engineering Shahreza Branch Islamic Azad University

研究了焊后热处理对青铜–碳钢爆炸结合界面组织和冶金性能的影响。在不同装药条件下,分别在1.5 mm和2 mm距离下进行了爆炸焊接。在250℃和500℃的炉中进行4和16 h的焊后热处理,再进行风冷处理。采用光学显微镜、扫描电子显微镜和显微... 详细信息

研究了焊后热处理对青铜–碳钢爆炸结合界面组织和冶金性能的影响。在不同装药条件下,分别在1.5 mm和2 mm距离下进行了爆炸焊接。在250℃和500℃的炉中进行4和16 h的焊后热处理,再进行风冷处理。采用光学显微镜、扫描电子显微镜和显微硬度测试对焊接试样进行了实验研究。显微组织测试表明,随着距离的增加和装药量的增加,青铜与钢的界面逐渐变薄。显微硬度测试结果表明,由于爆炸力引起的强烈塑性变形,接头界面附近的硬度较高。结果表明,随着热处理温度的升高和热处理时间的延长,金属间化合物的层厚增加,金属间化合物中的铁含量降低,铜和锡的扩散越快,金属间化合物中的铁含量越低。同时,由于热处理温度的升高和热处理时间的延长,内部应力释放,界面硬度降低。

关键词：热处理爆炸焊接金属间化合物凝固距离扩散层

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Identifying and Prioritizing Service Compensation Factors Influencing Nurses'Motivation:Application of Hybrid Fuzzy DEMATEL-BWM Method

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Fudan Journal of the Humanities and Social Sciences 2023年第1期16卷 63-88页

作者： Zahra Rajaei Sayyid ali banihashemi Mohammad Khalilzadeh Department of Public Administration Payame Noor UniversityTehranIran Department of Industrial Engineering Payame Noor UniversityTehranIran CENTRUM Catolica Graduate Business School Pontificia Universidad Catolica del PeruLimaPeru

Human resources are a key source of sustainable competitive advantage and are considered as one of the substantial factors for an organization's *** organization can survive without its human *** employees'needs,desires,and satisfaction is *** managers consider financial and non-financial compensation for employees'*** is a need for a practical look at the field of nursing service compensation,especially in the healthcare *** this study,the factors affecting nursing service compensation in the selected private hospitals in Iran were initially identified and confirmed using the exploratory and confirmatory factor *** three major factors are empowerment components,organizational components,and financial ***,the driver factors(causes)and dependent factors(effects)in the nursing service compensation system were investigated and their relationships were determined using the fuzzy DEMATEL ***,these factors were ranked using the best-worst(BWM)*** results of BWM indicate that financial components gained the top-ranked,followed by organizational components,and empowerment components.

关键词： Health care Nursing service compensation Factor analysis Bestworst method Fuzzy DEMATEL

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Sediment settling in the Latian Dam in Iran

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International Journal of Sediment Research 2014年第2期29卷 208-217页

作者： Farhang BEHRANGI Mohammad ali banihashemi Shayesteh MAHANI Mohammad reza RAHMANIAN Hydraulic Structures School of Civil EngineeringCollege of EngineeringUniversity of TehranPO Box 11365-4563TehranIran Ph.D.Student School of Civil Engineering College of EngineeringUniversity of TehranPO Box 11365-4563TehranIran.Assoc.Prof. Department of Civil Engineering the City College of New YorkNew YorkUSA.Assis.Prof. Department of Civil Engineering Shahrood University of TechnologyShahroodIran.Assis.Prof.

Among the difficulties that influence future dam operations,reservoir sedimentation is the most problematic for *** study predicted the amount and pattern of sedimentation for use in estimation of the useful lifespan of reservoirs and identification of optimal locations for outlets and intakes at the initial stages of dam *** surveys of different dams can provide better insight into this *** Dam in Iran has conducted hydrographic surveys during 7 time *** amount and process of sedimentation in this reservoir were determined,and predictions of distribution of sediments were validated by well-known,common *** formation of a delta in the reservoir was investigated for different time periods after *** problems due to the impacts of sedimentation on dam operation and the useful lifespan of the reservoir were *** addition,the study results may be used for developing empirical methods to predict sedimentation patterns in other reservoirs.

关键词： Sedimentation Dams Reservoirs Latian Dam Empirical methods Delta

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A time-splitting pressure-correction projection method for complete two-fluid modeling of a local scour hole

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International Journal of Sediment Research 2020年第4期35卷 395-407页

作者： Kambiz Farahi Moghadam Mohammad ali banihashemi Peyman Badiei ali Shirkavand School of Civil Engineering College of EngineeringUniversity of Tehran Department of Civil Engineering College of EngineeringVaramin-Pishva BranchIslamic Azad University

A two-dimensional vertical(2DV),Eulerian two-phase model or complete two-fluid model of the free surface flow was developed to simulate water-sediment flow in a local scour *** the model,the complete forms of the vertical,two-dimensional,two-fluid Navier-Stokes equations were discretized using a finite volume *** discretization was done based on a standard staggered grid system using a curvilinear network system in compliance with the bed boundaries and water *** the beginning of the computational cycle,the equations governing the fluid phase were solved based on the two-step projection method with a pressure-correction *** the first step,the intermediate fluid velocities were obtained by solving different phases of the mome ntum equatio ns of the fluid phase using the time-splitting *** the second step,pressure was obtained and fluid velocities we re *** this step a simple discretization method was applied for decreasing the computational *** obtaining all the fluid phase variables at a new time step,the sediment phase momentum equations were solved using the time-splitting technique and sediment velocities were ***,at the end of the computational cycle,the sediment phase mass equation was solved and the concentrations of both phases were *** last,the capacity of the model for simulating of the longitudinal fluid velocity and sediment concentration in a local scour hole was *** results were found to be in good agreement with experimental data.

关键词： Numerical modeling Complete two-fluid model Time-splitting pressure-correction projection method Local scour hole Sediment concentration Longitudinal fluid velocity

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Hemolytic uremic syndrome in children:some predictive findings on the disease outcome

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Asian Pacific Journal of Tropical Medicine 2008年第4期1卷 32-35页

作者： banihashemi Kambiz Naeeni K.Mohammad Yasseri Mehdi Ghasemi Saeed Abutalebi Robabeh Pourkhani Maryam Ministry of Science Research and TechnologyDep.of Medical sciencesTehranIran Dep.of Bio-Statistics Faculty of StatisticsTehran UniversityTehranIran Dep.of Statistics Tehran University of Medical SciencesTehranIran Dep.of Medical Sciences Great Persian Encyclopedia FoundationTehranIran Dep.of Medical Documentation Ali-Asghar Pediatrics HospitalTehranIran

Objective:To decrease or delay the major un-wanted clinical consequences to improve the quality of life in the involved ***:A retrospective case series study has been made on the forty five pediatric patients admitted to nephrology department of ali-Asghar Hospital during a period of nearly 10 *** patients have been divided into two groups of good and poor prognoses according to their clinical *** routine laboratory records and clinical manifestations extracted and statistically analyzed as independent variables both by univariate and multivariate ***:Forty three patients have been managed successfully with only two deaths *** to clinical findings,nineteen patients were classified as poor prognosis and the rest were categorized as good *** statistical analyses showed that lesser age at the time of admission(age15 000,P<0.226) were well-interrelated to ominous clinical consequences like convulsion,coma and peritonitis and statistically different between the two groups of ***:Despite the importance of predictive variables in the course of Hemolytic uremic syndrome(HUS) in children and their critical influence on the clinical outcome,many aspects of these parameters have been remained to be elucidated *** study showed that simultaneous low age of child at the time of admission with simultaneous high WBC count will result in the poorer prognoses of the *** may warn the clinicians to provide more supportive cares for this group of patients.

关键词： Hemolytic uremic syndrome(HUS) Prognostic factor

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Hepatitis B virus genotypes in southwest Iran: Molecular, serological and clinical outcomes

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World Journal of Gastroenterology 2008年第10期14卷 1510-1513页

作者： Anahita Mojiri Abbas Behzad-Behbahani Mehdei Saberifirozi Maryam Ardabili Mahmood Beheshti Marjan Rahsaz Mehrdad banihashemi Negar Azarpira Bita Geramizadeh Baharak Khadang Afsaneh Moaddeb Mojgan Ghaedi Tahereh Heidari Ardeshir Torab alireza Salah Saeid Amirzadeh Zahra Jowkar Davood Mehrabani Samad Amini-Bavil-Olyaee Mohammad ali Dehyadegari Gastroenterology and Hepatology Research Center Namazi Hospital Shiraz University of Medical Sciences Shiraz Iran Organ Transplant Research Center Namazi Hospital Shiraz University of Medical Sciences Shiraz Iran Department of Microbiology School of Medicine Shiraz University of Medical Sciences Shiraz Iran Iranian Blood Transfusion Organization Shiraz Iran Biotechnology Department PasteurInstitute of Iran Tehran Iran Professor Alborzi Clinical Microbiology Research Center Shiraz University of Medical Sciences Shiraz Iran

AIM: To investigate the associations of hepatitis B virus (HBV) genotype with HBeAg and anti-HBe status, alanine aminotransferase (ALT) levels and HBV-DNA detection in different groups of HBV-infected patients in southwest Iran. METHODS: A total of 89 HBsAg-positive serum samples were collected from the same number of patients. All sera were then investigated to determine HBV DNA and serological markers. For all the polymerase chain reaction (PCR)-positive samples, biochemical, histopathological assays and genotyping were also performed. RESULTS: Genotype D was the only type of HBV foundin different clinical forms of acute and chronic infections. There was a high prevalence of HBeAg-negative HBV- infected patients with chronic hepatitis (52.7%). Out of 55 patients with chronic hepatitis, seven (12.7%) were diagnosed with cirrhosis. A significant association between the presence of anti-HBe antibody and an increase in ALT level, among either HBeAg-negative (P = 0.01) or HBeAg-positive (P = 0.026) patients, was demonstrated. No significant differences were observed between the clinical outcomes of HBeAg-positive and -negative individuals (P = 0.24). CONCLUSION: Genotype D has been recognized as the only type of HBV found in different clinical forms of HBV infections, including cirrhosis, among the residents of southwest Iran. Anti-HBe possibly plays a role in disease progression in some patients with chronic hepatitis, at least for a period of disease.

关键词：乙型肝炎病毒肝硬化聚合酶联反应基因型伊朗

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