检索结果-南通市图书馆

Journal of Mountain Science 2024年第9期21卷 3157-3171页

作者： Shahriar KESHTGAR Mahmoud Reza HEYHAT Sasan BAGHERI Ebrahim gholami Seyed Naser RAISOSSADAT Department of Geology Faculty of ScienceUniversity of BirjandBirjand ***Iran Department of Geology Faculty of ScienceUniversity of Sistan and BaluchestanZahedan 98167-45845Iran

The eastern Iranian range,known as the Sistan suture zone in the past,has recently been identified as the Sistan *** Paleogene orogeny is located between the Lut and Afghan *** structural analysis shows that most of the thrusts dip towards the NW so that the Permo-Triassic sediments and Jurassic micro-diorites of the Lut Block overthrusted over the younger *** studies show that the tectonic vergence was from the NW to the SE of the Sechengi area in the NW part of Sistan *** recognized three deformation phases in eastern *** first N-S deformation event(D1)resulted in the formation of tight E-W folds(F1)and associated cleavages(S1).The second E-W deformation event(D2),which occurred in the late Paleogene led to the bending of older structures,including the axial plane of the first-generation folds giving them a new northwest direction(F2).Additionally,the ramp of the first-phase thrusts(striking E-W)was reactivated,acquiring a new NNW orientation and exhibiting SSE tectonic *** third deformation event(D3)resulted in the formation of NNE and WNW conjugate faults in eastern *** consecutive deformation events perpendicular to each other are inconsistent with the models of simple linear orogen presented for eastern Iran(*** of eastern Iran continental crust and subsequence linear collision)and seem more consistent with the buckling orogeny(Orocline).

关键词： Thrust Tectonic vergence Orocline Buckling Sechengi Eastern Iranian ranges.

Estimating intersection turning volumes from actuated traffic signal information

在线全文

学校读者我要写书评

暂无评论

Journal of Traffic and Transportation Engineering(English Edition) 2016年第6期3卷 507-519页

作者： Ali gholami Rasool Andalibian Zong Tian Department of Civil and Environmental Engineering University of NevadaRenoNV 89557USA

Actuated traffic signals usually use loop detectors. The current practice in many cities is to install four consecutive loop detectors in each lane to reduce the chance of undetected vehicles. Due to practical reasons, all four loop detectors in each lane and other detectors referring to the same phase are spliced together. Thus, it is possible for several vehicles to be counted as one single car. This way of detector wiring to the cabinet reduces the accuracy of detectors for collecting traffic volumes. Our preliminary studies show cases with an error greater than 75 percent. Therefore, the purpose of this paper is to provide a simple method to obtain turning volumes from signal information in actuated non-coordinated traffic signals without using loop detector data. To produce the required data, a simulation was performed in VISSIM with different input volumes. To change turning volumes, a code was developed in COM interface. With this code, the inputs did not have to be changed manually. In addition, the COM code stored the outputs. Data were then exported to a single Excel file. Afterwards, regression and the adaptive neural fuzzy inference system （ANFIS） were used to build models to obtain turning volumes. The accuracy of models is defined in terms of mean absolute percent error （MAPE）. Results of our two case studies show that during peak hours, there is a high correlation between actuated green time and volumes. This method does not need extensive data collection and is easy to be employed. The results also show that ANFIS produces more accurate models compared to regression.

关键词： Turning volume Regression ANFIS Actuated traffic signal

Postbuckling analysis of functionally graded graphene platelet-reinforced polymer composite cylindrical shells using an analytical solution approach

在线全文

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2019年第7期40卷 1001-1016页

作者： S. BLOORIYAN R. ANSARI A. DARVIZEH R. gholami H. ROUHI Department of Mechanical Engineering University of Guilan Rasht 41635-3756 Iran Department of Mechanical Engineering Lahijan Branch Islamic Azad University Lahijan 44169-39515Iran Department of Engineering Science Faculty of Technology and Engineering University of Guilan Rudsar-Vajargah 44891-63157 Iran

An analytical approach is proposed to study the postbuckling of circular cylindrical shells subject to axial compression and lateral pressure made of functionally graded graphene platelet-reinforced polymer composite (FG-GPL-RPC). The governing equations are obtained in the context of the classical Donnell shell theory by the von K′arm′an nonlinear relations. Then, based on the Ritz energy method, an analytical solution approach is used to trace the nonlinear postbuckling path of the shell. The effects of several parameters such as the weight fraction of the graphene platelet (GPL), the geometrical properties, and distribution patterns of the GPL on the postbuckling characteristics of the FG-GPL-RPC shell are analyzed.

关键词： cylindrical shell nanocomposite graphene platelet (GPL) postbuckling analytical solution

Significant aspects of carbon capture and storage–A review

在线全文

学校读者我要写书评

暂无评论

Petroleum 2019年第4期5卷 335-340页

作者： Arshad Raza Raoof gholami Reza Rezaee Vamegh Rasouli Minou Rabiei Department of Petroleum Engineering University of Engineering and Technology(UET)Pakistan Department of Petroleum Engineering Curtin UniversityMalaysia Department of Petroleum Engineering Curtin UniversityAustralia Department of Petroleum Engineering University of North DakotaUSA

Excessive emission of greenhouse gases into the atmosphere has resulted in a progressive climate change and global warming in the past *** 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 *** 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 *** 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.

关键词： CCS technologies CO_(2)capture CO_(2)transportation CO_(2)storage Leakage Costs

A modified failure criterion for transversely isotropic rocks

在线全文

学校读者我要写书评

暂无评论

Geoscience Frontiers 2014年第2期5卷 215-225页

作者： Omid Saeidi Vamegh Rasouli Rashid Geranmayeh Vaneghi Raoof gholami Seyed Rahman Torabi Faculty of Mining Petroleum and Geophysics Shahrood University of Technology Department of Petroleum Engineering Curtin University Rock Mechanics Division Tarbiat Modares University Department of Chemical and Petroleum Engineering Curtin University of Technology

A modified failure criterion is proposed to determine the strength of transversely isotropic rocks. Me-chanical properties of some metamorphic and sedimentary rocks including gneiss, slate, marble, schist, shale, sandstone and limestone, which show transversely isotropic behavior, were taken into consider-ation. 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 in-dexes 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.

关键词： Transversely isotropic rock Strength anisotropy Failure criterion Triaxial test

Parametric study on smoothed particle hydrodynamics for accurate determination of drag coefficient for a circular cylinder

在线全文

学校读者我要写书评

暂无评论

Water Science and Engineering 2017年第2期10卷 143-153页

作者： Maziar gholami Korzani Sergio A. Galindo-Torres Alexander Scheuermann David J. Williams School of Civil Engineering The University of Queensland St Lucia Brisbane QLD 4072 Australia School of Mathematics and Physics The University of Queensland St Lucia Brisbane QLD 4072 Australia

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.

关键词： Smoothed particle hydrodynamics Drag coefficient Reynolds number Sensitivity analysis Viscous flow

Long noncoding RNAs (lncRNAs) in human lymphomas

在线全文

学校读者我要写书评

暂无评论

Genes & Diseases 2022年第4期9卷 900-914页

作者： Ali gholami Khosro Farhadi Fatemeh Sayyadipour Masoud Soleimani Fakhredin Saba Clinical Research Development Center Taleghani and Imam Ali HospitalKermanshah University of Medical SciencesKermanshah 671568-5420Iran Department of Haematology Tarbiat Modares UniversityTehran 146899-5513Iran Department of Medical Laboratory Science School of ParamedicalKermanshah University of Medical SciencesKermanshah 671568-5420Iran

Lymphomas are a diverse group of haematologic malignancies, which occur in infection-fighting cells of the lymphatic system. Long non-coding RNAs (lncRNAs) are non-coding RNAs, which have recently received significant attention as the main mediators of gene expression. In this review, we summarize the current knowledge on lncRNAs involved in lymphomas, their molecular functions, as well as their potential clinical value. Relevant literature was identified by a PubMed search of English language papers using the following terms: Lymphoma, LncRNA, leukemia, proliferation, apoptosis, and prognosis. LncRNAs are imperative for lymphoma carcinogenesis through affecting apoptosis, cell proliferation, invasion, and response to chemotherapy. The expression level of lncRNAs can affect chemotherapy-induced apoptosis. Taken together, lncRNA dysregulation in lymphoma cells is not only an epiphenomenon but also lncRNA transcription is critically related to the initiation and progression of lymphomas. Aberrant expression of lncRNAs can lead to the transformation of normal lymphocytes into lymphoma cells.

关键词： Apoptosis Long non-coding RNA Lymphoma Prognosis Proliferation

Assessment of parameters effectiveness in the reserve estimation methods applicable to coal bed methane reservoirs

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Research 2023年第1期8卷 44-53页

作者： Farzain Ud Din Kirmani Arshad Raza Muhammad Sarfraz Akram Raoof gholami Institute of Energy and Environmental Engineering University of the PunjabLahorePakistan Department of Petroleum and Gas Engineering University of Engineering and TechnologyLahorePakistan Department of Petroleum Engineering King Fahd University of Petroleum and MineralsSaudi Arabia Department of Energy Resources University of StavangerStavangerNorway

The reserve estimation of coal bed methane(CBM)reservoirs is ascertained through the analytical methods(volumetric method,material balance equation and decline curve analysis).However,the adoption of reserve estimation methods depends on exploration stage and availability of the required *** study deals with the analytical assessment of parameters that participate in effecting the reserve estimation of CBM reservoirs through the analytical *** accurate measurement challenges always exist for the parameters which participate in the reserve estimation of the conventional and unconventional reservoirs because of the inclusion of limitations while ***,the impact of that measurement challenge must be *** study specifies the impact of parametric change on the reserve estimation of CBM reservoirs so that the degree of parametric effectiveness is *** values are adopted which are associated during the evaluation of input parameters for each method to determine the overall impact on potential of CBM *** reveal that change in specific parameters considering each method provide relatively more effect on estimation of ***,the measurement of parameters must be done accurately for assessing reserves of CBM reservoirs based on available methods.

关键词： Reserve estimation Coal bed methane Parameters effectiveness Analytical methods Numerical simulation

An analytical model to predict the volume of sand during drilling and production

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2016年第4期8卷 521-532页

作者： Raoof gholami Bernt Aadnoy Vamegh Rasouli Nikoo Fakhari Department of Petroleum Engineering Curtin University Department of Petroleum Engineering University of Stavanger Department of Petroleum Engineering University of North Dakota Department of Chemistry Shahrood University of Technology

Over the past few decades, many optical fiber sensing techniques have been developed. Among these available sensing methods, optical fiber Bragg grating（FBG） is probably the most popular one. With its unique capabilities, FBG-based geotechnical sensors can be used as a sensor array for distributive（profile） measurements, deployed under water（submersible）, for localized high resolution and/or differential measurements. The authors have developed a series of FBG-based transducers that include inclination, linear displacement and gauge/differential pore pressure sensors. Techniques that involve the field deployment of FBG inclination, extension and pore-pressure sensor arrays for automated slope stability and ground subsidence monitoring have been developed. The paper provides a background of FBG and the design concepts behind the FBG-based field monitoring sensors. Cases of field monitoring using the FBG sensor arrays are presented, and their practical implications are discussed.

关键词： Monitoring Ground stability Subsidence

Nuclear Level Density with Non-zero Angular Momentum

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第3X期46卷 514-520页

作者： A.N. Behkami M. gholami M. Kildir M. Soltani Physics Department Mahabad Islamic Azad University Mahabad Iran Chemistry Department Middle East Technical University Ankara Turkey physics Department Shiraz University Shiraz Iran

The statistical properties of interacting fermions have been studied for various angular momentum with the inclusion of pairing interaction. The dependence of the critical temperature on angular momentum for several nuclei, have been studied. The yrast energy as a function of angular momentum for 28Si and 24 Mg nuclei have been calculated up to 60.0 MeV of excitation energy. The computed limiting angular momenta are compared with the experimental results for ^26Al produced by ^12C＋ 14N reaction. The relevant nuclear level densities for non-zero angular momentum have been computed for ^44Ti and ^136 Ba nuclei. The results are compared with their corresponding values obtained from the approximate formulas.

关键词： nuclear structure statistical properties of paired nucleons