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| 1 | A modified failure criterion for transversely isotropic rocks显示文摘A modified failure criterion is proposed to determine the strength of transversely isotropic rocks. Mechanical properties of some metamorphic and sedimentary rocks including gneiss, slate, marble, schist,shale, sandstone and limestone, which show transversely isotropic behavior, were taken into consideration. Afterward, introduced triaxial rock strength criterion was modified for transversely isotropic rocks.Through modification process an index was obtained that can be considered as a strength reduction parameter due to rock strength anisotropy. Comparison of the parameter with previous anisotropy indexes in literature showed reasonable results for the studied rock samples. The modified criterion was compared to modified Hoek-Brown and Ramamurthy criteria for different transversely isotropic rocks. It can be concluded that the modified failure criterion proposed in this study can be used for predicting the strength of transversely isotropic rocks. | Omid Saeidi Vamegh Rasouli Rashid Geranmayeh Vaneghi Raoof Gholami Seyed Rahman Torabi | 2014 | Geoscience Frontiers2014，5，2： | 16 |
| 2 | Protective effect of essential oil of Pistacia atlantica Desf. on peptic ulcer: role of α-pinene显示文摘OBJECTIVE: To evaluate the efficacy of Pistacia atlantica Desf. oleoresin essential oil on peptic ulcer(PU) and its antibacterial effect on metronidazole-resistant Helicobacter pylori, as well as chemi-cal composition of the essential oil.METHODS: The essential oil was standardized using gas chromatography mass spectrometry(GC/MS) analysis. Acute toxicity of the essential oil was assessed in animal model. In vitro anti-Helicobacter pylori activity was performed through disc diffusion and minimum inhibitory concentration method. For gastroprotective assay, rats received Pistacia atlantica Desf. essential oil(25, 50 and 100 mg/kg orally) 1 h before induction of ulcer by ethanol.Macroscopic(ulcer index and protection rate) and microscopic examination were performed.RESULTS: The GC/MS analysis of the essential oil led to the identification of twenty constituents andα-pinene is predominant constituent. The essential oil was safe up to 2000 mg/kg. All Helicobacter pylori strains were susceptible to the essential oil and the MIC ranged from 275 to 1100 μg/m L. The ulcer index for treated groups was significantly reduced compared to control(P < 0.001) with EC50 value of 12.32 mg/kg. In microscopic examination, Pistacia atlantica attenuated destruction and necrosis of gastric tissue.CONCLUSION: Current study exhibited protective effect of standardized Pistacia atlantica essential oil against ethanol-induced gastric ulcer and its antibacterial activity on Helicobacter pylori. α-pinene might be the responsible agent. | Zahra Memariani Mohammad Sharifzadeh Mahbubeh Bozorgi Mannan Hajimahmoodi Mohammad Hosein Farzaei Mahdi Gholami Farideh Siavoshi Parastoo Saniee | 2017 | Journal of Traditional Chinese Medicine2017，37，1： | 10 |
| 3 | Supported N-propylsulfamic acid on magnetic nanoparticles used as recoverable and recyclable catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones in water显示文摘An efficient and eco-friendly method is reported for the synthesis of 2-substituted-2,3-dihydroquinazolin -4(1 H)-ones from direct cyclocondensation of anthranilamide with aldehydes and ketones using N-propylsulfamic acid supported onto magnetic Fe_3O_4 nanoparticles(MNPs-PSA) as a recoverable and recyclable nanocatalyst in good to excellent yields in water at 70℃.The catalyst was readily separated using an external magnet and reusable without significant loss of their catalytic efficiency. | Amin Rostami Bahman Tahmasbi Hoshyar Gholami Hajir Taymorian | 2013 | Chinese Chemical Letters2013，24，3： | 7 |
| 4 | Significant aspects of carbon capture and storage–A review显示文摘Excessive emission of greenhouse gases into the atmosphere has resulted in a progressive climate change and global warming in the past decades.There have been many approaches developed to reduce the emission of Carbon Dioxide(CO2)into the atmosphere,among which Carbon Capture and Storage(CCS)techniques has been recognized as the most promising method.This paper provides a deeper insight about the CCS technology where CO2 is captured and stored in deep geological formations for stabilization of the earth's temperature.Principles of capturing and storage for a long-term sequestration are also discussed together with the processes,mechanisms and interactions induced by supercritical CO2 upon injection into subsurface geological sites. | Arshad Raza Raoof Gholami Reza Rezaee Vamegh Rasouli Minou Rabiei | 2019 | Petroleum2019，5，4： | 7 |
| 5 | Service restoration in distribution networks using combination of two heuristic methods considering load shedding显示文摘Two heuristic methods are proposed to find an effective and fast solution in modern power distribution networks.For solving the service restoration problem in distribution networks,switch selection indices based on an analytic approach and a practicable heuristic graph-based method are given.The formulation of the problem includes four different objective functions:1)maximizing the total load restored;2)minimizing the number of switching operations;3)maximizing the top priority restored load;4)minimizing load shedding.A suitable evaluation of switch indices is used for all candidate tie switches(TSs)in the network to find the best solution and decrease the number of switching operations.A new graph-based approach is utilized for finding the best sectionalizes switch(SS)and minimizing the voltage drop.The accuracy and the validity of the approach are tested in two standard electrical distribution networks.The results of the approach are used for IEEE 69-bus and IEEE 119-bus test case. | Meysam GHOLAMI Jamal MOSHTAGH Naji GHADERNEJAD | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，4： | 6 |
| 6 | 焊丝对工业纯铜和304不锈钢钨极氩弧焊接的影响(英文)显示文摘采用不同焊丝对工业纯铜和304不锈钢进行钨极氩弧焊接。结果表明,采用铜做焊丝时,焊缝无任何缺陷生成,而采用304不锈钢和Ni-Cu-Fe合金为焊丝材料时,焊缝中有凝固裂纹和未熔化区存在。在最优条件下,焊缝的抗拉强度能达到铜材的96%。焊缝在弯曲到180°下也没有分离、撕裂和断裂等现象发生。这表明铜是一种较好的工业纯铜与304不锈钢GTA焊的焊丝材料。 | Sajjad Gholami SHIRI Mohsen NAZARZADEH Mahmood SHARIFITABAR Mehdi Shafiee AFARANI | 2012 | Transactions of Nonferrous Metals Society of China2012，22，12： | 5 |
| 7 | 加强循证决策:不改善卫生系统管理,可能吗?显示文摘背景:世界范围内的卫生系统都面临资源限制。因此,通过科学循证决策来削减成本并防止资源浪费非常重要和必要,本研究旨在分析伊朗卫生系统循证决策的障碍。方法:通过对决策者的深度访谈和焦点小组讨论收集数据,共进行了13次访谈和6组焦点小组讨论,并对数据进行了主题分析。结果:障碍涉及决策者特点、决策环境和研究系统三个方面,每个方面由相关主题和分主题构成;机构价值观、选择决策者的标准、对循证决策的态度是循证决策的重要障碍,并且与管理有关。结论:循证决策有不同层级的障碍,需要从多个角度寻找强化科学循证决策影响的解决方案;几个已经确定循证决策的障碍植根于卫生体系治理,如跨部门合作的薄弱、没有制定卫生研究重点。因此,为做好循证决策,加强卫生系统管理势在必行。 | Reza Majdzadeh Bahareh Yazdizadeh Saharnaz Nedjat Jaleh Gholami Sharareh Ahghari | 2012 | 中国卫生政策研究2012，5，5： | 5 |
| 8 | Efficacy of Valerian Extract on Sleep Quality after Coronary Artery bypass Graft Surgery: A Triple-Blind Randomized Controlled Trial显示文摘Objective:To assess the effect of valerian root extract on the sleep quality of patients after coronary artery bypass graft(CABG)surgery.Methods:The patients who participated in this triple-blind clinical trial were selected by permuted block randomization.The participants were assigned to the valerian(n=36)and placebo(n=36)groups.The valerian group received 530 mg of valerian capsules for 30 nights after CABG surgery,and the placebo group received 530 mg of the placebo capsules containing wheat flour.The Pittsburgh Sleep Quality Index(PSQI),the prothrombin time(PT)and partial thromboplastin time(PTT)were assessed on four occasions,including the baseline,the 3 rd,14 th and 30 th days following intervention.Results:The odds ratio of worsened sleep quality significantly varied over time(the interaction of time and group)in the valerian group compared to the placebo group in various dimensions including total sleep quality(P=0.001),sleep latency(P<0.01),sleep duration(P=0.020),sleep efficiency(P=0.001)and daytime dysfunction(P=0.025).No significant difference was observed in the alterations of the odds ratio of PT in the two groups over time.(P=0.371).Conclusion:The consumption of oral valerian root extract over 30 nights could significantly improve the patients'sleep quality safely after CABG surgery. | Halimeh khaton Zare Elmi Mohammad Gholami Mandana Saki Farzad Ebrahimzadeh | 2021 | Chinese Journal of Integrative Medicine2021，27，1： | 3 |
| 9 | Three-Dimensional Simulation of Plasma Deformation During Contact Opening in a Circuit Breaker,Including the Analysis of Kink Instability and Sausage Instability显示文摘A three-dimensional(3-D) transient model has been developed to investigate plasma deformation driven by a magnetic field and its influence on arc stability in a circuit breaker.The 3-D distribution of electric current density is obtained from a current continuity equation along with the generalized Ohm's law;while the magnetic field induced by the current flowing through the arc column is calculated by the magnetic vector potential equation.When gas interacts with an arc column,fundamental factors,such as Ampere's law,Ohm's law,the turbulence model,transport equations of mass,momentum and energy of plasma flow,have to be coupled for analyzing the phenomenon.The coupled interactions between arc and plasma flow are described in the framework of time-dependent magnetohydrodynamic(MHD) equations in conjunction with a K-ε turbulence model.Simulations have been focused on sausage and kink instabilities in plasma(these phenomena are related to pinch effects and electromagnetic fields).The 3-D simulation reveals the relation between plasma deformation and instability phenomena,which affect arc stability during circuit breaker operation.Plasma deformation is the consequence of coupled interactions between the electromagnetic force and plasma flow described in simulations. | Vahid ABBASI Ahmad GHOLAMI Kaveh NIAYESH | 2012 | Plasma Science and Technology2012，14，11： | 3 |
| 10 | Groundwater quality modeling using self-organizing map(SOM) and geographic information system(GIS) on the Caspian southern coasts显示文摘Groundwater is the main source for water provision in the arid and semi-arid areas such as Iran.The groundwater quality was simulated by using a hybrid model integrating a Self-Organizing Map(SOM)and geographic information system(GIS).SOM and GIS were used as pre-processing and postprocessing tools in the Mazandaran Plain.Further,the Ground Water Quality Index(GWQI)and its effective factors were estimated by using digital maps and the secondary data.Neuro Solutions software was used for simulating the groundwater quality.To do this,a model was trained and optimized in the SOM and then the optimized model was tested.In the next step,the performance of SOM in groundwater quality simulation was confirmed(test stage,Rsqr=0.8,and MSE=0.008).Then,the digital maps of the SOM inputs were converted to raster format in GIS.In the last step,a raster layer was generated by combining the model input layers which comprised the model inputs values.The tested SOM was used to simulate GWQI in the sites without the secondary data of the groundwater quality.Finally,the groundwater quality map was generated by coupling the results of SOM estimations and GIS capabilities.The results revealed that the coupling of SOM and GIS has high performance in the simulation of the groundwater quality.According to the results,a limited area of the studied plain has groundwater resources with low quality(GWQI>0.04).Therefore,that will be a threat to the life of humans,animals,and vegetative species.Therefore,it is necessary to plan for managing the groundwater quality in the Mazandaran plain. | Vahid GHOLAMI Mohammad Reza KHALEGHI Edris TAGHVAYE SALIMI | 2020 | Journal of Mountain Science2020，17，7： | 2 |
| 11 | Parametric study on smoothed particle hydrodynamics for accurate determination of drag coefficient for a circular cylinder显示文摘Simulations of two-dimensional(2D) flow past a circular cylinder with the smoothed particle hydrodynamics(SPH) method were conducted in order to accurately determine the drag coefficient. The fluid was modeled as a viscous liquid with weak compressibility. Boundary conditions,such as a no-slip solid wall, inflow and outflow, and periodic boundaries, were employed to resemble the physical problem. A sensitivity analysis, which has been rarely addressed in previous studies, was conducted on several SPH parameters. Hence, the effects of distinct parameters, such as the kernel choices and the domain dimensions, were investigated with the goal of obtaining highly accurate results. A range of Reynolds numbers(1-500) was simulated, and the results were compared with existing experimental data. It was observed that the domain dimensions and the resolution of SPH particles, in comparison to the obstacle size, affected the obtained drag coefficient significantly. Other parameters, such as the background pressure, influenced the transient condition, but did not influence the steady state at which the drag coefficient was determined. | Maziar Gholami Korzani Sergio A. Galindo-Torres Alexander Scheuermann David J. Williams | 2017 | Water Science and Engineering2017，10，2： | 2 |
| 12 | Determination of captopril in patient human urine using ferrocenemonocarboxylic acid modified carbon nanotubes paste electrode显示文摘In this work,we describe a new strategy for the electrochemical determination of captopril(CA) using ferrocenemonocarboxylic acid as a mediator and multiwall carbon nanotubes as sensors in aqueous solution at pH 7.0.The diffusion coefficient(D),and the kinetic parameters such as electron transfer coefficient(α).and heterogeneous rate constant(k_h),for CA were also determined using electrochemical approaches.Under the optimized conditions,the electrocatalytic oxidation peak current of captopril showed two linear dynamic ranges with a detection limit of 0.3×10^(-6) mol L^(-1) captopril.The linear calibration range was 0.8×10^(-6) to 65×10^(-6) mol L^(-1) using cyclic voltammetry.Finally,this modified electrode was also examined as a selective,simple and precise new electrochemical sensor for the determination of captopril in real samples such as drug and patient human urine. | Mohammad A.Khalilzadeh Hassan Karimi-Maleh Azra Amiri Fathali Gholami Robabeh Motaghed Mazhabi | 2010 | Chinese Chemical Letters2010，21，12： | 2 |
| 13 | The Effects of SF_6-Cu Mixture on the Arc Characteristics in a Medium Voltage Puffer Gas Circuit Breaker due to Variation of Thermodynamic Properties and Transport Coefficients显示文摘In a gas circuit breaker,metal vapor resulting from electrode erosion is injected into the arc plasma.The arc then burns in a mixture of SF6 and electrode vapor,which has properties significantly different from those of pure SF6.Thermodynamic properties and transport coefficients of thermal plasmas formed in SF6-copper vapor mixtures change as a function of temperature and pressure.The property that is mostly affected by the presence of copper is electrical conductivity,which is important in magnetohydrodynamic(MHD) analysis.In this study,the transport coefficients of SF6 in the presence of 10 percent copper are considered as the basis of MHD simulation.Comparisons are made between the results during arc formation for pure SF6 and SF6-Cu mixture in a medium voltage(MV) circuit breaker.According to the transport coefficients influenced by the SF6-Cu mixture,the distribution of the electric potential, temperature,electromagnetic force density and current density of the arc column are presented and discussed.Also,the arc stability and pinch effect near current zero with 3-D simulation are investigated,which is advantageous to improving the efficiency of arc plasma simulation. | Vahid ABBASI Ahmad GHOLAMI Kaveh NIAYESH | 2013 | Plasma Science and Technology2013，15，6： | 2 |
| 14 | On the MHD squeeze flow between two parallel disks with suction or injection via HAM and HPM显示文摘分析被执行了学习磁电机水动力学(MHD ) 的问题挤压在二个无限的、平行磁盘之间的电子上进行的液体的流动。调用 Homotopy 分析方法(火腿) 的分析方法和 Homotopy 不安方法(HPM ) 被用来解决非线性的微分方程。在解决这个问题作为边界价值问题(BVP ) 与数字分析的一种类型比较显示出能力和建议方法的宽范围的应用被尝试了。另外,速度领域为物理参数的各种各样的值图形地被计算了并且出现。现在的工作的目的是调查效果在速度领域上挤压雷纳兹数字, Hartmann 数字和吸 / 注射参数。而且,结果表明火腿和 HPM 很有效、方便。 | D. D. GANJI M. ABBASI J. RAHIMI M. GHOLAMI I. RAHIMIPETROUDI | 2014 | Frontiers of Mechanical Engineering2014，9，3： | 2 |
| 15 | Soil-Structure Interaction Analysis of Jack-up Platforms Subjected to Monochrome and Irregular Waves显示文摘As jack-up platforms have recently been used in deeper and harsher waters,there has been an increasing demand to understand their behaviour more accurately to develop more sophisticated analysis techniques.One of the areas of significant development has been the modelling of spudcan performance,where the load-displacement behaviour of the foundation is required to be included in any numerical model of the structure.In this study,beam on nonlinear winkler foundation(BNWF) modeling—which is based on using nonlinear springs and dampers instead of a continuum soil media—is employed for this purpose.A regular monochrome design wave and an irregular wave representing a design sea state are applied to the platform as lateral loading.By using the BNWF model and assuming a granular soil under spudcans,properties such as soil nonlinear behaviour near the structure,contact phenomena at the interface of soil and spudcan(such as uplifting and rocking),and geometrical nonlinear behaviour of the structure are studied.Results of this study show that inelastic behaviour of the soil causes an increase in the lateral displacement at the hull elevation and permanent unequal settlement in soil below the spudcans,which are increased by decreasing the friction angle of the sandy soil.In fact,spudcans and the underlying soil cause a relative fixity at the platform support,which changes the dynamic response of the structure compared with the case where the structure is assumed to have a fixed support or pinned support.For simulating this behaviour without explicit modelling of soil-structure interaction(SSI),momentrotation curves at the end of platform legs,which are dependent on foundation dimensions and soil characteristics,are obtained.These curves can be used in a simplified model of the platform for considering the relative fixity at the soilfoundation interface. | Maziar Gholami KORZANI Ali Akbar AGHAKOUCHAK | 2015 | China Ocean Engineering2015，29，1： | 2 |
| 16 | Statistical Treatment of Low-Energy Nuclear Level Schemes显示文摘水平密度参数和背移动精力 E_1 越过整个周期表与 A 值为原子核被决定从适合在中子束缚能附近在低刺激精力完成水平计划。我们发现精力背移动 E_1 显示出复杂行为并且取决于原子核的类型,弄平甚至,奇怪集体、奇怪奇怪。Thespin 截止因素也为上面提及的原子核被调查了。结果在水平密度上与以前的结果和不同试验性的数据相比。 | M. Gholami M. Kildir A.N. Behkami | 2007 | Communications in Theoretical Physics2007，47，2： | 2 |
| 17 | P-Dodecylbenzenesulfonic acid(DBSA),a Brфnsted acid-surfactant catalyst for Biginelli reaction in water and under solvent free conditions显示文摘We report herein the use of p-dodecylbenzenesulfonic acid(DBSA) as a catalyst for a one-pot Biginelli reaction to afford 3,4- dihydropyrimidinone derivatives in good to excellent yields.This reaction proceeds efficiently in water and under solvent free conditions.Comparisons of results indicate that although the yields are high and comparable for both methods,the reaction times are considerably shorter under solvent free conditions. | Mohammad Ali Bigdeli Ghazaleh Gholami Enayatollah Sheikhhosseini | 2011 | Chinese Chemical Letters2011，22，8： | 2 |
| 18 | A nano-particle based approach to improve filtration control of water based muds under high pressure high temperature conditions显示文摘There have been many attempts to improve the filtration control of water based muds under High Pressure High Temperature(HPHT)condition using a cost effective approach.Nano particles are perhaps the best option considering their successful applications reported in many studies.However,they are often expensive and pose unfavourably changes on the rheology of the muds.In this paper,an attempt was made to show the application of Nano Glass Flakes(NGFs)as a cheap but effective nano particle to control the filtration of water based muds under HPHT conditions.Performing a series of rheology,filtration and conductivity tests on the mud samples with unmodified NGFs revealed that this nano particle increases the mud rheology,yield point and gel strength of the mud with a slight impact on the filtration loss.However,by modifying the surface charges of NGFs with a cationic surfactant,filtration loss was significantly reduced without any severe impacts on the mud rheology.Considering the conductivity of the mud which increases by adding the modified NGF,this nano particle might be a good choice to improve the overall performance of water based muds under HPHT conditions. | Ong Siong Guan Raoof Gholami Arshad Raza Minou Rabiei Nikoo Fakhari Vamegh Rasouli Omid Nabinezhad | 2020 | Petroleum2020，6，1： | 2 |
| 19 | A highly efficient procedure for the synthesis of quinoxaline derivatives using polyvinylpolypyrrolidone supported triflic acid catalyst(PVPP.OTf)显示文摘A polyvinylpolypyrrolidone supported triflic acid was shown to be useful as a recyclable heterogeneous catalyst for the rapid and efficient synthesis of quinoxaline derivatives in good-to-excellent yields.The catalyst is easily prepared,air-stable,reusable,and easily removed from the reaction mixtures. | Samad Khaksar Mahmoud Tajbakhsh Milad Gholami Fariba Rostamnezhad | 2014 | Chinese Chemical Letters2014，25，9： | 2 |
| 20 | Precipitation forecasting by large-scale climate indices and machine learning techniques显示文摘Global warming is one of the most complicated challenges of our time causing considerable tension on our societies and on the environment.The impacts of global warming are felt unprecedentedly in a wide variety of ways from shifting weather patterns that threatens food production,to rising sea levels that deteriorates the risk of catastrophic flooding.Among all aspects related to global warming,there is a growing concern on water resource management.This field is targeted at preventing future water crisis threatening human beings.The very first stage in such management is to recognize the prospective climate parameters influencing the future water resource conditions.Numerous prediction models,methods and tools,in this case,have been developed and applied so far.In line with trend,the current study intends to compare three optimization algorithms on the platform of a multilayer perceptron(MLP)network to explore any meaningful connection between large-scale climate indices(LSCIs)and precipitation in the capital of Iran,a country which is located in an arid and semi-arid region and suffers from severe water scarcity caused by mismanagement over years and intensified by global warming.This situation has propelled a great deal of population to immigrate towards more developed cities within the country especially towards Tehran.Therefore,the current and future environmental conditions of this city especially its water supply conditions are of great importance.To tackle this complication an outlook for the future precipitation should be provided and appropriate forecasting trajectories compatible with this region's characteristics should be developed.To this end,the present study investigates three training methods namely backpropagation(BP),genetic algorithms(GAs),and particle swarm optimization(PSO)algorithms on a MLP platform.Two frameworks distinguished by their input compositions are denoted in this study:Concurrent Model Framework(CMF)and Integrated Model Framework(IMF).Through these two frameworks,13 cases are generated:12 cases within CMF,each of which contains all selected LSCIs in the same lead-times,and one case within IMF that is constituted from the combination of the most correlated LSCIs with Tehran precipitation in each lead-time.Following the evaluation of all model performances through related statistical tests,Taylor diagram is implemented to make comparison among the final selected models in all three optimization algorithms,the best of which is found to be MLP-PSO in IMF. | Mehdi GHOLAMI ROSTAM Seyyed Javad SADATINEJAD Arash MALEKIAN | 2020 | Journal of Arid Land2020，12，5： | 2 |
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