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18篇 您的检索式:作者名="Gheibi"
    题名 作者 年代 出处 被引量
1Geomechanical analysis of the influence of CO2 injection location on fault stability显示文摘Large amounts of carbon dioxide(CO_2) should be injected in deep saline formations to mitigate climate change,implying geomechanical challenges that require further understanding.Pressure build-up induced by CO_2 injection will decrease the effective stresses and may affect fault stability.Geomechanical effects of overpressure induced by CO_2 injection either in the hanging wall or in the foot wall on fault stability are investigated.CO_2 injection in the presence of a low-permeable fault induces pressurization of the storage formation between the injection well and the fault.The low permeability of the fault hinders fluid flow across it and leads to smaller overpressure on the other side of the fault.This variability in the fluid pressure distribution gives rise to differential total stress changes around the fault that reduce its stability.Despite a significant pressure build-up induced by the fault,caprock stability around the injection well is not compromised and thus,CO_2 leakage across the caprock is unlikely to happen.The decrease in fault stability is similar regardless of the side of the fault where CO_2 is injected.Simulation results show that fault core permeability has a significant effect on fault stability,becoming less affected for high-permeable faults.An appropriate pressure management will allow storing large quantities of CO_2 without inducing fault reactivation.Victor Vilarrasa Roman Makhnenko Sohrab Gheibi 2016Journal of Rock Mechanics and Geotechnical Engineering2016,8,6:4
2Modified Kuz-Ram fragmentation model and its use at the sungun copper mine 显示文摘GHEIBIE S AGHABABAEI H HOSEINIE S H POURRAHIMIAN Y 2009International Journal of Rock Mechanics and Mining Sciences2009,46,6:1
3Hydrogen sulfide protects the brain against ischemic reperfusion injury in a transient model of focal cerebral ischemia 显示文摘Gheibi S Aboutaleb N Khaksari M 2014J Mol Neuro- sci2014,54,2:1
4A new approach for thermodynamic studies on binding of some metal ions with human growth hormone显示文摘Rezaei-Behbehani G Saboury AA Gheibi N 2008J Solution Chem2008,37,12:1
5Study of promoter methylation pattern of 14-3-3 sigma gene in normal and cancerous tissue of breast: A potential biomarker for detection of breast cancer in patients显示文摘Gheibi A Kazemi M Baradaran A 2012Adv Biomed Res2012,1,:1
6Hydrogen sulfide protects the brain against ischemic reperfusion injury in a transient model of focal cerebral ischemia显示文摘Gheibi S Aboutaleb N Khaksari M 2014J Mol Neurosci2014,54,2:1
7Hydrogen sulfide protects the brain against ischemic reperfusion injury in a transient model of focal cerebral ischemia显示文摘Gheibi S Aboutaleb N Khaksari M 2014J Mol Neurosci2014,54,2:1
8Hydrogen sulfide protects the brain against ischemic reperfusion injury in a transient model of focal cerebral ischemia显示文摘Gheibi S Aboutaleb N Khaksari M 2014J Mol Neurosci2014,54,2:1
9Study of promoter methylation pattern of 14-3-3 sigma gene in normal and cancerous tissue of breast:A potential biomarker for detection of breast cancer in patients显示文摘Gheibi A Kazemi M Baradaran A 2012Adv Biomed Res2012,1,:1
10Refractory iron deficiency anemia and Helicobacter pylori infection in pediatrics:a review显示文摘Gheibi Sh Farrokh-Eslamlou HR Noroozi M 2015Iran J Ped Hematol Oncol2015,5,1:1
11Modified Kuz-Ram Fragmentation Model and Its Use at the Sungun Copper Mine显示文摘Gheibie H Aghababaei S H Hoseinie Y Pourrahimian 2009International Journal of Rock Mechanics&Mining Sciences2009,46,:1
12Hydrogen sulfide pro- tects the brain against isehemic reperfusion injury in a transient model of focal cerebral ischemia显示文摘Gheibi S Aboutaleb N Khaksari M 2014J MolNeurosci2014,54,:1
13A New Approach for Thermodynamic Studies on Binding of Some Metal Ions with Human Growth Hormone显示文摘G. Rezaei Behbehani A. Divsalar A. A. Saboury N. Gheibi 2008Journal of Solution Chemistry2008,,12:1
14Ultrasonic imaging of microscale processes in quartz gouge during compression and shearing显示文摘Active ultrasonic monitoring in rock joints and gouge materials has the potential to detect the signatures of shear failure for a wide range of sliding modes,from slow and stable movements to fast and unstable sliding.While these collected measurements currently are being used to identify the seismic precursors to shear failure in rock joints and gouge materials,the underlying physical processes and contact scale mechanisms that control the changes in ultrasonic wave attributes are still poorly understood.To address this knowledge gap,this paper aims to investigate the relationship between the variations in ultrasonic wave attributes and the underlying particle scale mechanisms during both compression and shearing.Our double direct shear experiments were coupled with ultrasonic wave propagation measurements on granular quartz gouges,in which the gouge layers were sheared under different sliding velocities and constant normal stress conditions.Simultaneously,ultrasonic waveforms were continuously recorded during shearing with a fast data acquisition system and three pairs of ultrasonic wave transducers embedded at the two sides of the gouge layers.Different particle comminution mechanisms were observed from the non-uniform distribution of normal and shear stresses through the changes in ultrasonic transmissivity and scanning electron microscope(SEM)images.Our results show that the signatures of the geometry-and time-dependent variations of the inter-particle contact quality and pore volume changes with sliding velocity and slip accumulation were clearly captured from the variations in the transmitted wave amplitude and the dominant frequency,respectively.In addition,we found that variations in dominant frequency corresponded to dilation and compaction of the granular gouge layer during compression as well as stable and unstable sliding.Our results therefore confirmed that nondestructive acoustic techniques are capable of capturing a variety of micromechanical processes during fault gouge deformation and may prove useful in natural settings.Amin Gheibi Ahmadreza Hedayat 2020Journal of Rock Mechanics and Geotechnical Engineering2020,12,6:0
15A New Quantum Watermarking Based on Quantum Wavelet Transforms显示文摘Quantum watermarking is a technique to embed specific information, usually the owner's identification,into quantum cover data such for copyright protection purposes. In this paper, a new scheme for quantum watermarking based on quantum wavelet transforms is proposed which includes scrambling, embedding and extracting procedures. The invisibility and robustness performances of the proposed watermarking method is confirmed by simulation technique.The invisibility of the scheme is examined by the peak-signal-to-noise ratio(PSNR) and the histogram calculation.Furthermore the robustness of the scheme is analyzed by the Bit Error Rate(BER) and the Correlation Two-Dimensional(Corr 2-D) calculation. The simulation results indicate that the proposed watermarking scheme indicate not only acceptable visual quality but also a good resistance against different types of attack.Shahrokh Heidari Mosayeb Naseri Reza Gheibi Masoud Baghfalaki Mohammad Rasoul Pourarian Ahmed Farouk 2017Communications in Theoretical Physics2017,67,6:0
16Ivermectin as an adjunct treatment for hospitalized adult COVID-19 patients: A randomized multi-center clinical trial显示文摘Objective: To evaluate different doses of ivermectin in adult patients with mild COVID-19 and to evaluate the effect of ivermectin on mortality and clinical consequences.Methods: A randomized, double-blind, placebo-controlled, multicenter clinical trial was performed at five hospitals. A total of 180 mild hospitalized patients with COVID-19 confirmed by PCR or chest image tests were enrolled and allocated to six arms including hydroxychloroquine 200 mg twice per day, placebo plus hydroxychloroquine 200 mg twice per day, single dose ivermectin(200 μg/kg), three low interval doses of ivermectin(200, 200, 200 μg/kg), single dose ivermectin(400 μg/kg), and three high interval doses of ivermectin(400, 200, 200 μg/kg). The primary endpoint of this trial was all-cause of mortality or clinical recovery. The radiographic findings, hospitalization and low O_2 saturation duration, and hematological variables of blood samples were analyzed. Results: A total of 16.7%(5/30) and 20.0%(6/30) patients died in arms treated with hydroxychloroquine 200 mg twice per day and placebo plus hydroxychloroquine 200 mg twice per day, respectively, and a reduction in mortality rate in patients receiving ivermectin treatment to 0%, 10%, 0% and 3.3% for arms 1-4 were observed. Risk of mortality was also decreased about 15% in the ivermectin treated arms. Conclusions: Ivermectin as an adjunct reduces the rate of mortality, time of low O_2 saturation, and duration of hospitalization in adult COVID-19 patients. The improvement of other clinical parametersshows that ivermectin, with a wide margin of safety, had a high therapeutic effect on COVID-19.Morteza Shakhsi Niaee Peyman Namdar Abbas Allami Leila Zolghadr Amir Javadi Amin Karampour Mehran Varnaseri Behzad Bijani Fatemeh Cheraghi Yazdan Naderi Fatemeh Amini Masoumeh Karamyan Mohammad Jafar YadYad Ramin Jamshidian Nematollah Gheibi 2021Asian Pacific Journal of Tropical Medicine2021,14,6:0
17Human Calprotectin: Effect of Calcium and Zinc on its Secondary and Tertiary Structures, and Role of pH in its Thermal Stability显示文摘lprotectin,异种属于 S100 蛋白质家庭,的二聚的建筑群过时的人或物在 neutrophils 的 cytosolic 部分主要发现了。在现在的学习, humancalprotectin 用二拍子的圆舞离子交换层析从 neutrophils 被净化。净化的蛋白质被用于圆形的二色性学习和荧光分析面对在生理的集中的钙和锌,以及为对它的禁止的活动在 K562 白血病房间的评价排队。在 pH 的蛋白质的热稳定性 7.0 (生理的 pH ) and8.0 (类似于肠的 pH ) 也被比较。房间增长分析的结果表明人的 calprotectin 在 dose-dependentmanner 开始了肿瘤房间的生长抑制。人的 calprotectin (50 mug/ml ) 的内在的荧光排放系列在荧光紧张面对钙和锌离子显示出减小,反映在有到为 calprotectin 的生物功能是重要的蛋白质表面的芳香的残余的暴露的蛋白质以内的 aconformational 变化。人的 calprotectin 的远 ultraviolet-circulardichroism 系列在蛋白质和增加在的 alpha 螺旋状的内容面对在生理的集中的钙和锌离子显示出减少(贝它 -- 并且另外的结构。我们的结果也证明从 7.0 ~ 8.0 增加 pH 水平在人的 calprotectin 的热稳定性导致显著举起,显示在在内脏的 calprotectin 的稳定性的重要角色 forpH。Reza YOUSEFI Mehdi IMANI Susan K ARDES ANI Ali Akbar SABOURY Nematollah GHEIBI Bijan RANJBAR 2007Acta Biochimica et Biophysica Sinica2007,39,10:0
18Detecting cell-secreted growth factors in microfluidic devices using bead-based biosensors显示文摘Microfluidic systems provide an interesting alternative to standard macroscale cell cultures due to the decrease in the number of cells and reagents as well as the improved physiology of cells confined to small volumes.However,the tools available for cell-secreted molecules inside microfluidic devices remain limited.In this paper,we describe an integrated microsystem composed of a microfluidic device and a fluorescent microbead-based assay for the detection of the hepatocyte growth factor(HGF)and the transforming growth factor(TGF)-β1 secreted by primary hepatocytes.This microfluidic system is designed to separate a cell culture chamber from sensing chambers using a permeable hydrogel barrier.Cell-secreted HGF and TGF-β1 diffuse through the hydrogel barrier into adjacent sensing channels and are detected using fluorescent microbead-based sensors.The specificity of sensing microbeads is defined by the choice of antibodies;therefore,our microfluidic culture system and sensing microbeads may be applied to a variety of cells and cell-secreted factors.Kyung Jin Son Pantea Gheibi Gulnaz Stybayeva Ali Rahimian Alexander Revzin 2017Microsystems & Nanoengineering2017,3,1:0
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