|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 不同铸造工艺制备A356-CNT纳米复合材料的摩擦学行为(英文)显示文摘研究液态成形和半固态成形法制备的A356 铝合金整体铸件和A356-CNT 纳米复合铸造件的摩擦学行为。采用熔体搅拌、流变铸造、搅拌铸造、复合铸造等不同工艺制备样品。研究碳纳米管(CNTs)的加入、铸造工艺和施加载荷对磨损性能和磨损机理的影响。结果表明,添加碳纳米管显著降低了纳米复合材料的磨损量、磨损率和摩擦因数。铸造工艺由液态成形变为半固态成形,和初相含量的增加是提高合金尤其是纳米复合合金样品耐磨性能的两个主要因素。此外,研究还发现液态成形和半固态成形两种方法制备的整体铸件其主要磨损机理分别是粘着磨损和剥层磨损。然而,无论制备工艺如何,磨粒磨损是纳米复合材料的主要磨损机理。 | Benyamin ABBASIPOUR Behzad NIROUMAND Sayed Mahmoud MONIR VAGHEFI Mohammad ABEDI | 2019 | Transactions of Nonferrous Metals Society of China2019，29，10： | 9 |
| 2 | Particle shape consideration in numerical simulation of assemblies of irregularly shaped particles显示文摘The mechanical behavior of granular materials depends much on the shape of the constituent particles. Therefore appropriate modeling of particle, or grain, shape is quite important. This study employed the method of direct modeling of grain shape (Matsushima & Saomto, 2002), in which, the real shape of a grain is modeled by combining arbitrary number of overlapping circular elements which are connected to each other in a rigid way. Then, accordingly, a discrete-element program is used to simulate the assembly of grains. In order to measure the effects of grain shape on mechanical properties of assembly of grains, three types of grains-high angular grains, medium angular grains and round grains are considered where several biaxial tests are conducted on assemblies with different grain types. The results show that the angularity of grains greatly affects the behavior of granular soil. | Saba Abedi Ali Asghar Mirghasemi | 2011 | Particuology2011，9，4： | 8 |
| 3 | Fatty liver index vs waist circumference for predicting non-alcoholic fatty liver disease显示文摘AIM: To determine the discriminatory performance of fatty liver index(FLI) for non-alcoholic fatty liver disease(NAFLD).METHODS: The data of 5052 subjects aged over 18 years were analyzed. FLI was calculated from body mass index, waist circumference(WC), triglyceride, and gamma glutamyl transferase data. Logistic regression analysis was conducted to determine the association between FLI and NAFLD. The discriminatory performance of FLI in the diagnosis of NAFLD was evaluated by receiver operating characteristic analysis. Area under the curves(AUCs) and related confidence intervals were estimated. Optimal cutoff points of FLI in the diagnosis of NAFLD were determined based on the maximum values of Youden's index.RESULTS: The mean age of men and women in the study population were 44.8 ± 16.8 and 43.78 ± 15.43, respectively(P = 0.0216). The prevalence of NAFLD was 40.1% in men and 44.2% in women(P < 0.0017). FLI was strongly associated with NAFLD, so that even a one unit increase in FLI increased the chance of developing NAFLD by 5.8%(OR = 1.058, 95%CI: 1.054-1.063, P < 0.0001). Although FLI showed good performance in the diagnosis of NAFLD(AUC = 0.8656(95%CI: 0.8548-0.8764), there was no significant difference with regards to WC(AUC = 0.8533, 95%CI: 0.8419-0.8646). The performance of FLI was not significantly different between men(AUC = 0.8648, 95%CI: 0.8505-0.8791) and women(AUC = 0.8682, 95%CI: 0.8513-0.8851). The highest performance with regards to age was related to the 18-39 age group(AUC = 0.8930, 95%CI: 0.8766-0.9093). The optimal cutoff points of FLI were 46.9 in men(sensitivity = 0.8242, specificity = 0.7687, Youden's index = 0.5929) and 53.8 in women(sensitivity = 0.8233, specificity = 0.7655, Youden's index = 0.5888).CONCLUSION: Although FLI had acceptable discriminatory power in the diagnosis of NAFLD, WC was a simpler and more accessible index with a similar performance. | Nima Motamed Masoudreza Sohrabi Hossein Ajdarkosh Gholamreza Hemmasi Mansooreh Maadi Fatemeh Sima Sayeedian Reza Pirzad Khadijeh Abedi Sivil Aghapour Mojtaba Fallahnezhad Farhad Zamani | 2016 | World Journal of Gastroenterology2016，22，10： | 8 |
| 4 | Effects of TiO_2 nanoparticles on the aquatic plant Spirodela polyrrhiza: Evaluation of growth parameters, pigment contents and antioxidant enzyme activities显示文摘Plants are essential components of all ecosystems and play a critical role in environmental fate of nanoparticles. However, the toxicological impacts of nanoparticles on plants are not well documented. Titanium dioxide nanoparticles(TiO_2-NPs) are produced worldwide in large quantities for a wide range of purposes. In the present study, the uptake of TiO_2-NPs by the aquatic plant Spirodela polyrrhiza and the consequent effects on the plant were evaluated.Initially, structural and morphological characteristics of the used TiO_2-NPs were determined using XRD, SEM, TEM and BET techniques. As a result, an anatase structure with the average crystalline size of 8 nm was confirmed for the synthesized TiO_2-NPs. Subsequently, entrance of TiO_2-NPSto plant roots was verified by fluorescence microscopic images. Activity of a number of antioxidant enzymes, as well as, changes in growth parameters and photosynthetic pigment contents as physiological indices were assessed to investigate the effects of TiO_2-NPs on S. polyrrhiza. The increasing concentration of TiO_2-NPs led to the significant decrease in all of the growth parameters and changes in antioxidant enzyme activities. The activity of superoxide dismutase enhanced significantly by the increasing concentration of TiO_2-NPs. Enhancement of superoxide dismutase activity could be explained as promoting antioxidant system to scavenging the reactive oxygen species. In contrast, the activity of peroxidase was notably decreased in the treated plants. Reduced peroxidase activity could be attributed to either direct effect of these particles on the molecular structure of the enzyme or plant defense system damage due to reactive oxygen species. | Ali Movafeghi Alireza Khataee Mahboubeh Abedi Roshanak Tarrahi Mohammadreza Dadpour Fatemeh Vafaei | 2018 | Journal of Environmental Sciences2018，30，2： | 6 |
| 5 | Optimized Fuzzy Controller for MPPT of Grid-connected PV Systems in Rapidly Changing Atmospheric Conditions显示文摘Due to nonlinear behavior of power production of photovoltaic(PV)systems,it is necessary to apply the maximum power point tracking(MPPT)techniques to generate the maximum power.The conventional MPPT methods do not function properly in rapidly changing atmospheric conditions.In this study,a fuzzy logic controller(FLC)optimized by a combination of particle swarm optimization(PSO)and genetic algorithm(GA)is proposed to obtain the maximum power point(MPP).The proposed FLC uses the ratio of power variations to voltage variations and the derivative of power variations to voltage variations as inputs and uses the duty cycle as the output.The range of changes in fuzzy membership functions and fuzzy rules are proposed as an optimization problem optimized by the PSO-GA.The proposed design is validated for MPPT of a PV system using MATLAB/Simulink software.The results indicate a better performance of the proposed FLC compared to the common methods. | Majid Dehghani Mohammad Taghipour Gevork B.Gharehpetian Mehrdad Abedi | 2021 | Journal of Modern Power Systems and Clean Energy2021，9，2： | 4 |
| 6 | Prioritization of factors related to mental health of women during an earthquake:A qualitative study显示文摘BACKGROUND: According to the fact that women account for the highest rate of victims of mental health loss during disasters, prioritization of their requirements is of remarkable signifi cance. Therefore, the present study was carried out with the aim to prioritize factors related to women's mental health during an earthquake. METHODS: This study was conducted using the Delphi method in 2017. Participants consisted of experts including psychologists, counselors and psychiatrists, social medicine specialists, and psychiatric-mental health nurses with experience in service and disaster awareness, especially earthquake. They were selected using purposive and snowball sampling methods. The Delphi method was used in 2 rounds with 21 components and the fi nal attendance of 19 participants and the collective agreement of 75%. RESULTS: Of the 21 factors related to women's mental health during the earthquake, the following components were, respectively, preferred by the participants: psychological well-being training, group relationships and support of women in emergency situations, fair treatment in the provision of rights and services to women, crisis awareness and management of behavior and diffi cult conditions, and social security during disasters with the total mean standard deviation (SD) of 13.4 (2.4), 13.0 (2.4), 12.7 (2.5), 12.5 (2.4), and 12.3 (2.2), respectively. CONCLUSION: Training in the fi eld of psychology and disasters, and social and cultural factors were prioritized among factors related to women's mental health during an earthquake. Therefore, the results of this study can be applied by the planners and executives of mental health, women and disasters, and the women's community itself. | Rahele Samouei Shahin Shooshtari Masud Bahrami Mohammad Reza Abedi Mohammad Reza Maracy | 2019 | World Journal of Emergency Medicine2019，10，3： | 3 |
| 7 | 修饰的多壁碳纳米管糊电极用于生物与制药样品中苄丙酮香豆素电催化氧化和测定(英文)显示文摘采用一种简单灵敏的方法开发了在多壁碳纳米管修饰的ZnCrFeO_4糊电极(MWCNTs/ZnCrFeO_4/CPE)表面测定苄丙酮香豆素的新型传感器.运用循环伏安法、差示脉冲伏安法、计时电流法和电化学阻抗谱考察了该化学修饰电极上苄丙酮香豆素的电化学性能.结果表明,MWCNTs/ZnCrFeO_4/CPE电极对苄丙酮香豆素氧化表现出较高的电催化活性,在pH=4时,产生峰值氧化电流约0.97 vs Ag/AgCl参比电极.当苄丙酮香豆素浓度在0.02–920.0μmol/L范围内,该峰电流与其呈线性关系,检测极限(3σ)为0.003μmol/L.另外,运用差示脉冲伏安法测定了MWCNTs/ZnCrFeO_4/CPE电极上苄丙酮香豆素的催化反应速率常数和扩散系数. | Masoumeh Taei Fardin Abedi | 2016 | Chinese Journal of Catalysis2016，37，3： | 3 |
| 8 | Rational Design and Application of an Indolium-Derived Heptamethine Cyanine with Record-Long Second Near-Infrared Emission显示文摘Heptamethine cyanine dyes,typified by indocyanine green,have been extensively employed as bioimaging indicators and theranostic agents.Significant efforts have been made to develop functional heptamethine cyanine dyes with outstanding bioimaging and theranostic utilities.In this work,we rationally designed and successfully developed a novel indolium-like heptamethine cyanine dye by installing indolium-derived polycyclic aromatic hydrocarbons on the terminal ends of a conjugated polyene backbone.This dye showed excellent photostability and showed bright fluorescent emission in the second near-infrared(NIR-Ⅱ)window with a peak at approximately 1120 nm.Such long wavelength emission prompted a superior bioimaging resolution in vivo.In particular,this NIR-Ⅱ dye had the remarkable capability of marking the blood vessels of the hindlimbs,abdomens,and brains of mice.More significantly,this dye involved a typical indolium-like heptamethine skeleton and exhibited two strong absorption bands in the 700–1300 nm NIR range,which endowed it with an intrinsic tumor-targeting capability and a high photothermal conversion efficiency(up to 68.2%),serving for the photothermal therapy of tumors under the guidance of NIR-Ⅱ fluorescence imaging.This work provides an efficient design strategy for achieving indolium-like heptamethine cyanine dyes with further NIR-Ⅱ emission. | Xiaoxie Ma Yurou Huang Syed Ali Abbas Abedi Heejeong Kim Tan Teck Boon Davin Xiaogang Liu Wen-Chao Yang Yao Sun Sheng Hua Liu Jun Yin Juyoung Yoon Guang-Fu Yang | 2022 | CCS Chemistry2022，4，6： | 2 |
| 9 | A polymer electro-optic modulator with ultra wide-band and low driving voltage显示文摘In this paper, a polymer electro-optic modulator is designed and simulated using the full vectorial finite element method. First order edge elements are used in finite element implementation, and the finite element technique is used to obtain modulator response thoroughly. From the numerical analysis, frequency dispersions of modulator's important parameters, such as microwave effective index nm , microwave characteristic impedance ZC and microwave loss a, are extracted. Our design exhibits electrical bandwidth of 260 GHz and drive voltage of about 2.8 V.cm in this frequency. | Kambiz Abedi Habib Vahidi | 2011 | Optoelectronics Letters2011，7，6： | 2 |
| 10 | Failure analysis of SCC and SRB induced cracking of a transmission oil products pipeline显示文摘 | S.Sh. Abedi A. Abdolmaleki N. Adibi | 2006 | Engineering Failure Analysis2006，，1： | 2 |
| 11 | Suicide gene therapy for plasma cell tumors显示文摘 | Diber MS Abedi MR Bjorkstrand B | 1996 | Blood1996，88，6： | 1 |
| 12 | Adsorption of methane on corn cobs based activated carbon显示文摘 | BAGHERI N ABEDI J | 2011 | Chem Eng Res Des2011，89，10： | 1 |
| 13 | Bio-oil from sawdust:Effect of operating paramete on the yield and quality of pyrolysis products 显示文摘 | SALEHI E ABEDI J HARDING T | 2011 | Energy and Fuels2011，25，9： | 1 |
| 14 | Training guideline for use of propofol in gastrointestinal endoscopy 显示文摘 | Chutkan R Cohen J Abedi M | 2004 | Gastrointest Endosc2004，60，2： | 1 |
| 15 | Bevacizumab vs ranibizumab for age-related macular degeneration:early results of a prospective double-masked,randomized clinical trial显示文摘 | Subramanian ML Ness S Abedi G | | 0，，： | 1 |
| 16 | Advances in graft-versus-host diseasebiology and therapy 显示文摘 | Blazar BR Murphy VVJ Abedi M | 2012 | Nature reviews Immunology2012，12，6： | 1 |
| 17 | Bevacizumab vs ranibizumab for age-related macular degeneration:1-year outcomes of a prospective,double-masked randomised clinical trial显示文摘 | Subramanian ML Abedi G Ness S | | 0，，： | 1 |
| 18 | Improvement in social dysfunction of children with autism spectrum disorder following long term Kata techniques training显示文摘 | Ahmadreza Movahedi Fatimah Bahrami Sayed Mohammad Marandi Ahmad Abedi | 2013 | Research in Autism Spectrum Disorders2013，，9： | 1 |
| 19 | Parallel finite element simulation of mooring forces on floating objects显示文摘 | Aliabasi S Abedi J Zellsrs B | 2003 | International Journal for Numerical Methods in Fluids2003，10，3： | 1 |
| 20 | Participation of bone marrow derived cells in cutaneous wound healing 显示文摘 | Badiavas EV Abedi M Butmarc J | 2003 | J Cell Physiol2003，196，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员