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| 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 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | Isolation of caffeine from tea waste using subcritical water extraction 显示文摘 | Shalmashi Anvar Abedi Mohammad Golmohammad Fereshteh | 2010 | Journal of Food Process Engineering2010,33,4: | 1 |
| 6 | Development and validation of a HPLC method for the determination of buprenorphine hydrochloride, naloxone hydrochloride and noroxymorphone in a tablet formulation显示文摘 | Ali Mostafavi Ghazaleh Abedi Ahmad Jamshidi Daryoush Afzali Mohammad Talebi | 2008 | Talanta2008,,4: | 1 |
| 7 | Phase-Controlled Transparent Superluminal Light Propagation in a Doppler-Broadened Four-Level N-Type System显示文摘The propagation of a weak probe field in a four-level N-type quantum system in the presence of spontaneously generated coherence(SGC) is theoretically investigated. The optical properties of the system are studied and it is shown that the group velocity of light pulse can be controlled by relative phase of applied fields. By changing the relative phase of applied fields, the group velocity of light pulse changes from transparent subluminal to the transparent superluminal light propagation. Thus, the phase-controlled absorption-free superluminal light propagation is obtained without applying an incoherent laser fields to the system. The propagation of a weak probe light pulse is studied by solving the Maxwell's wave equation on numerical grid in space and time. Moreover, we study the third order self- and cross-Kerr susceptibility of probe field and calculate the nonlinear cross-phase shift for different values of intensity of applied fields. In addition, we take into account the effect of Doppler broadening on the light pulse propagation and it is found that a suitable choice of laser propagation directions allows us to preserve our results even in the presence of Doppler effect. It is demonstrated that by increasing the Doppler width of distribution to the room temperature,the dispersion changes from transparent subluminal to transparent superluminal light propagation which is our major motivation for this work. | Lida Ebrahimi Zohravi Majid Abedi Mohammad Mahmoudi | 2014 | Communications in Theoretical Physics2014,61,4: | 1 |
| 8 | Comparison of liquid-liquid extraction-thin layer chromatography with solid-phase extraction-high-performance thin layer chromatography in detection of urinary morphine显示文摘Liquid-liquid extraction-thin layer chromatography (LLE-TLC) has been a common and routine combined method for detection of drugs in biological materials.Solid-phase extraction (SPE) is gradually replacing the traditional LLE method.High performance thin layer chromatography (HPTLC) has several advantages over TLC.The present work studied the higher efficiency of a new SPE-HPTLC method over that of a routine LLE-TLC method,in extraction and detection of urinary morphine.Fifty-eight urine samples,primarily identified as morphine-positive samples by a strip test,were re-screened by LLE-TLC and SPE-HPTLC.The results of LLE-TLC and SPE-HPTLC were then compared with each other.The results showed that the SPE-HPTLC detected 74% of total samples as morphine-positive samples whereas the LLE-TLC detected 48% of the same samples.We further discussed the effect of codeine abuse on TLC analysis of urinary morphine.Regarding the importance of morphine detection in urine,the present combined SPE-HPTLC method is suggested as a replacement method for detection of urinary morphine by many reference laboratories. | Ali Ahadi Alireza Partoazar Mohammad Hassan Abedi Khorasgani Seyed Vahid Shetab Boushehri | 2011 | The Journal of Biomedical Research2011,25,5: | 1 |
| 9 | 基于剩余动校正拉伸补偿的改进子波估计方法研究(英文)显示文摘子波估计是地震数据处理与反演中的常规步骤。同态子波估计基于地震叠加剖面进行,不需要相位的先验信息,已被长期采用。尽管会引起波形拉伸,但共中心点道集必须经过动校正(NMO)才能形成叠加剖面。即使切除拉伸较为严重的部分,剩余的动校正拉伸仍可能对叠加剖面产生影响。而较大的剩余动校正拉伸会不同程度地影响数据随时间变化的谱特性。考虑到同态子波估计是基于数据的谱特性进行的,因而对剩余动校正拉伸进行补偿,可以提高该过程的精度。本文提出了一种快速计算剩余动校正拉伸量并进行补偿的方法。本方法仅需要诸如偏移距和速度函数的有限信息,也不需要叠前处理。合成及实际数据的处理均表明该方法提高了子波估计的准确程度。 | Mohammad Mahdi Abedi Siyavash Torabi | 2015 | Applied Geophysics2015,12,4: | 0 |
| 10 | Some Explicit Constructions of Type-Ⅱ,Ⅲ,Ⅳ,Ⅴ QC-LDPC Codes with Girth 6显示文摘Multi-type quasi-cyclic(QC) low-density parity-check(LDPC) codes can be considered as multiple-edge protograph QC-LDPC codes having some advantages in the minimum Hamming distance bound over single-edge protograph codes or type-Ⅰ QC-LDPC codes when the base matrices have the same size. In this paper, we investigate a class of multi-type QC-LDPC codes whose parity-check matrices contain just one blockrow of circulants and we obtain the generator matrix of such codes in general form. Using the permutation arrays and defining injection arrays, we present a new approach to construct a class of high-rate type-Ⅰ QC-LDPC codes with girth 6 from the constructed 4-cycle free multi-type QC-LDPC codes. In continue, for 2 ≤ w≤6, some type-w QC-LDPC codes with girth 6 are constructed explicitly such that the constructed codes are flexible in terms of rate and length. To the best of our knowledge, for w = 5,6, this is the first paper which deals with the explicit construction of type-w QC-LDPC codes with girth 6 and high rates. Moreover, for w = 3, 4, the constructed type-w QC-LDPC codes have better(6,8)-cycle multiplicities than the codes with minimum achievable length recently constructed by cyclic difference families(CDFs). Simulation results show that the binary and non-binary constructed codes outperform the constituent underlying QC-LDPC codes. | Farzaneh Abedi Mohammad Gholami | 2020 | China Communications2020,17,5: | 0 |
| 11 | Application of 2,2'-dithiobis(4-methylthiazole) as sensing material for construction of Lu^(3+) PVC-membrane sensor显示文摘在这个工作,一个新 Lu3+PVC 膜传感器基于 2,2-dithiobis (4-methylthiazole )(TMT ) 被制作了。传感器展出 19.6 潮慰瑲捩敬 ? ? 的一个 Nernstian 斜坡 ??? 柳言吗?? | Mohammad Reza Abedi Hassan Ali Zamani | 2011 | Chinese Chemical Letters2011,22,8: | 0 |
| 12 | Transarterial coil embolization in treatment of gross hematuria following self-inflicted stab wound in a horseshoe kidney显示文摘马蹄铁肾在渗透和钝腹的损伤期间是有损害的增加的风险的尿系统的一个不平常的异例。自使蒙受腹刺创伤,腹的损害的一种稀罕类型,为仅仅自杀尝试的一个小百分比的报道并且可以被医生不经常在损伤中心遇到。精神病学的混乱和酒精或药滥用是普通风险因素在的情况下自我刺。这里,我们报导一个稀罕案例一个马蹄铁肾自我刺。案例是一个 19 岁的人与自使蒙受腹刺创伤被指我们辐射学的部门由于重新发生的粗野血尿症在探索剖腹术和受伤腹的机关的外科的修理以后的三天。一个马蹄铁肾顺便说一下在 patient’s 被发现腹的计算断层摄影术。肾的 angiography 从部分动脉之一揭示了活跃对比溢出。有卷的选择 transarterial embolization 成功地被执行控制血尿症。 | Masoud Pezeshki Rad Hassan Ahmadnia Mahboobeh Abedi Mohammad Sadegh Abedi | 2012 | Chinese Journal of Traumatology2012,15,2: | 0 |
| 13 | Q-learning based control for energy management of series-parallel hybrid vehicles with balanced fuel consumption and battery life显示文摘The present study investigates an energy management strategy based on reinforcement learning for seriesparallel hybrid vehicles. Hybrid electric vehicles allow using more advanced power management policies because of their complexity of power management. Towards this feature, a Q-Learning algorithm is proposed to design an energy management strategy. Compared to previous studies, an online reward function is defined to optimize fuel consumption and battery life cycle. Moreover, in the provided method, prior knowledge of the cycle and exact modeling of the vehicle are not required. The introduced strategy is simulated for four driving cycles in MATLAB software linked with ADVISOR. The simulation results show that in the HWFET cycle, the fuel consumption decreases by 1.25 %, and battery life increases by 65% compared to the rule-based method implemented in ADVISOR. Also, the results for the other driving cycles confirm the self-improvement property. In addition, it has been depicted that in the case of change in the driving cycle, the method performance has been maintained and gained better performance than the rule-based controller. | Saeid Ahmadian Mohammad Tahmasbi Reza Abedi | 2023 | Energy and AI2023,11,1: | 0 |
| 14 | InAs/GaAs far infrared quantum ring inter-subband photodetector显示文摘 | Mohammad KARIMI Kambiz ABEDI Mahdi ZAVVARI | 2014 | Frontiers of Optoelectronics2014,7,1: | 0 |
| 15 | Design and analysis of resonant cavity-enhanced quantum ring inter-subband photodetector with resonant tunneling barriers for terahertz detection显示文摘The effect of resonant cavity structure on the performance operation of In As/Ga As quantum ring intersubband photodetector is studied for detection of terahertz radiations range.In order to confinement of optical field w ithin active region and consequently enhancement in responsivity of device,tw o periods of Al2O3/Ga As distributed bragg reflectors are used as bottom dielectric mirror and a thin layer of Au material as top mirror of device.For further improvement in detectivity,Al0.3Ga0.7As/In0.3Ga0.7As resonant tunneling barriers are included in absorption layers to reduce dark current of device.Proposed photodetector show s a peak responsivity of about 0.4(A/W)and quantum efficiency of 1.2%at the w avelength of 80μm(3.75 THz).Furthermore,specific detectivity(D*)of device is calculated and results are compared to conventional quantum ring inter-subband photodetector.Results predict a D*of^1011(cm.Hz1/2/W)for device at T=80 K and V=0.4 V w hich is tw o orders of magnitude higher than that of conventional QRIPs. | Mahdi Zavvari Mohammad Karimi Kambiz Abedi | 2014 | 红外与毫米波学报2014,33,6: | 0 |