检索结果-南通市图书馆

Tectonic Setting of the Barm Firuz Lake,Zagros Mountains,Iran:Inferred from Structural and Karstic Evidence

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 Earth Science 2014年第5期25卷 932-938页

作者： babak Samani Faculty of Earth Sciences Shahid Chamran UniversityAhvaz Iran

This paper presents the role of tectonic and karstic processes in the formation and evolution of Barm Firuz Lake within the Zagros Mountains of Iran. This lake with elevation of 3 340 m from sea level is located in the crest of the Barm Firuz anticline. Results show that the structural evolution of the Barme Firuz Lake is related to both tectonic and karst processes. Therefore the term of tectonokarstic has been used for structural evolution of the lake. Structural studies especially on the stylolite structures revealed the occurrence of an important component of simple shear deformation in the study area. Based on structural and karstic evidence around the lake, the fault-dissolution sink model with oblique pure shear component is suggested as kinematic model of the Barm Firuz Lake evolution in the Zagros Mountains of Iran.

关键词： tectonic karst Barm Firuz Lake Zagros Mountains lran.

Self-assembled vesicle–colloid hybrid swimmers:Non-reciprocal strokes with reciprocal actuation

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2020年第6期29卷 30-36页

作者： Jaime Agudo-Canalejo babak Nasouri Max Planck Institute for Dynamics and Self-Organization(MPIDS) 37077 GoettingenGermany

We consider a self-assembled hybrid system,composed of a bilayer vesicle to which a number of colloids are *** on known results of membrane curvature elasticity,we predict that,for sufficiently deflated prolate vesicles,the colloids can self-assemble into a ring at a finite distance away from the vesicle equator,thus breaking the up–down symmetry in the *** the relative variation of the position of the colloidal ring along the vesicle endows the system with an effective elasticity,periodic cycles of inflation and deflation can lead to non-reciprocal shape changes of the vesicle–colloid hybrid,allowing it to swim in a low Reynolds number environment under reciprocal *** design several actuation protocols that allow control over the swimming direction.

关键词： vesicles colloids microswimmers curvature

Estimating Network Connectedness of Financial Markets and Commodities

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science and Systems Engineering 2020年第5期29卷 572-589页

作者： Ehsan Bagheri Seyed babak Ebrahimi Financial Engineering Group Faculty of Industrial EngineeringK.N.Toosi University of TechnologyTehranIran

We investigate the directional volatility and return network connectedness among stock,commodity,bond,currency and cryptocurrency *** period of study covers Feb 2006 until August *** utilize and expand Diebold and Yilmaz(20142015)connectedness measurement;accordingly,in the variance decomposition structure,we use Hierarchical Vector Autoregression(HVAR)to estimate high dimensional networks more *** empirical results show that markets are highly connected,especially during *** stock markets are the net receiver of shocks,while European and American stock markets are the net transmitter of shocks to other *** pairwise connectedness results suggest that among stock markets,DAX-CAC 40,FTSE 100-CAC 40 and S&P 500-S&P_TSX index are more integrated through connectedness than the *** other markets,WTI crude oil-Brent crude oil,30-Year bond and 10-Year bond,Dollar Index futures-EUR/USD have notable *** terms of cryptocurrencies,they contribute insignificantly to other markets and are highly integrated with each *** and cryptocurrencies seem to be good choices for investors to hedge during a crisis.

关键词： Financial markets network connectedness econometrics commodity

Border-search and jump reduction method for size optimization of spatial truss structures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2019年第1期13卷 123-134页

作者： babak DIZANGIAN Mohammad Reza GHASEMI Department of Civil Engineering Velayat UniversityIranshahr ***Iran Department of Civil Engineering University of Sistan and BaluchestanZahedan ***Iran

This paper proposes a sensitivity-based border-search and jump reduction method for optimum design of spatial *** is considered as a two-phase optimization approach,where at the first phase,the first local optimum is found by few analyses,after the whole searching space is limited employing an efficient random strategy,and the second phase involves finding a sequence of local optimum points using the variables sensitivity with respect to corresponding values of constraints *** reach the global solution at phase two,a sequence of two sensitivity-based operators of border-search operator and jump operator are introduced until convergence is *** analysis is performed using numerical finite difference *** do structural analysis,a link between open source software of OpenSees and MATLAB was *** truss problems were attempted for optimization in order to show the fastness and efficiency of proposed *** were compared with those reported in the *** shows that the proposed method is competitive with the other optimization methods with a significant reduction in number of analyses carried.

关键词： optimum design sensitivity analysis reduction method spatial tresses OpenSees

Applicable models for multi-component adsorption of dyes:A review

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 Environmental Sciences 2013年第3期25卷 419-429页

作者： babak Noroozi George A.Sorial Department of Textile Engineering University of Guilan Visiting Scholar Environmental Engineering ProgramUniversity of Cincinnati Environmental Engineering Program University of Cincinnati

Adsorption is one of the several techniques that has been successfully used for dyes *** most industrial colored effluents contain several components including dyes,having a strong knowledge about the scope of competitive adsorption process is a powerful key to design an appropriate *** is mainly because of the complexity brought about by the increasing number of parameters needed for process description which complicates not only the process modeling but also the experimental data collection.A multicomponent adsorption model should be based on fundamental soundness,speed,and simplicity of *** such systems,competition will change the adsorbent-adsorbate ***,there is major concern to develop an accurate and reliable method to predict dye adsorption behavior in multi-component *** article covers topics such as the theory of dyes adsorption in multi-component systems along with applicable models according to the consistent theories presented by researchers.

关键词： adsorption dye multi-component isotherm models

Fast track system optimization of emergency departments:Insights from a computer simulation study

在线全文

学校读者我要写书评

暂无评论

International Journal of Modeling, Simulation, and Scientific Computing 2016年第3期7卷 107-135页

作者： babak Shirazi Department of Industrial Engineering Mazandaran University of Science and Technology Babol Iran

Healthcare systems engineering in emergency departments(EDs)are developing rapidly in the world *** track(FT)as a rapid treatment system is considered to facilitate ED patient *** know how FT can improve the performance of ED,one should study the best configuration of resources for implementation of *** research presents a pattern for implementation of FT systems in hospital EDs using healthcare simulation ***-based optimization model uses modeling and simulation capabilities to generate configurations of FT resources and its patient prioritization pattern with Arena rsimulation software.A decision making method is used to select the optimal configuration based on pre-specified performance *** results imply that the proposed FT implementation pattern is efficient and capable of improving patient flow.

关键词： Healthcare engineering fast track system emergency department simulationbased optimization.

Phenotypic and functional comparison of two dist subsets of programmable cell of monocytic origin （PCMOs）-derived dendritic cells with conventiona monocyte-derived dendritic cells nct

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2016年第2期13卷 160-169页

作者： babak Beikzadeh Nowruz Delirezh Department of Microbiology Faculty of Veterinary Medicine Urmia University Urmia Iran Department of Cellular and Molecular Biotechnology Institute of Biotechnology Urmia University Urmia Iran

Dendritic cells （DCs） are professional antigen-presenting cells with the ability to induce primary T-cell responses. They are commonly produced by culturing monocytes in the presence of IL-4 and GM-CSF （cells produced in this manner are called conventional DCs）. Here we report the generation of two functionally distinct subsets of DCs derived from programmable cells of monocytic origin （PCMOs） in the presence of IL-3 or tumor necrosis factor alpha （TNF-e）. Monocytes were treated with macrophage colony-stimulating factor （M-CSF） and IL-3 for 6 days and then incubated with IL-4 and IL-3 （for IL-3 DCs） or with IL-4, GM-CSF and TNF-a （for TNF-a DCs） for 7 days. Monocytes were then loaded with tumor lysate （used as antigen）, and poly （I ： C） was added. The maturation factors TNF-e and monocyte conditioned medium （MCM） were added on days 4 and 5, respectively. The phenotypes of the DCs generated were characterized by flow cytometry, and the cells＇ phagocytic activities were measured using FITC-conjugated latex bead uptake. T-cell proliferation and cytokine release were assayed using MTT and commercially available ELISA kits, respectively. We found that either IL-3DCs or TNF-α DCs induce T-cell proliferation and cytokine secretion; the cytokine release pattern showed reduced IL-12/IL- 10 and IFN-γ/IL-4 ratios in both types of DCs and in DC-primed T-cell supernatant, respectively, which confirmed that the primed T cells were polarized toward aTh2-type immune response. We concluded that PCMOs are a new cell source that can develop into two functionally distinct DCs that both induce a Th2-type response in vitro. This modality can be used as a DC-based immunotherapy for autoimmune diseases.

关键词： dedifferentiation dendritic cell monocytes PCMO

A General Fractional Pollution Model for Lakes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications on Applied Mathematics and Computation 2022年第3期4卷 1105-1130页

作者： babak Shiri Dumitru Baleanu Data Recovery Key Laboratory of Sichuan Province College of Mathematics and Information ScienceNeijiang Normal UniversityNeijiang 641100SichuanChina Department of Mathematics Cankaya University06530 BalgatAnkaraTurkey Institute of Space Sciences Magurele-BucharestRomania

A model for the amount of pollution in lakes connected with some rivers is *** this model,it is supposed the density of pollution in a lake has *** model leads to a system of fractional differential *** system is transformed into a system of Volterra integral equations with memory *** existence and regularity of the solutions are investigated.A high-order numerical method is introduced and analyzed and compared with an explicit method based on the regularity of the *** examples are supported,and some models are simulated and discussed.

关键词： Amount of pollution in lakes System of ordinary differential equations System of fractional differential equations Explicit and implicit methods Regularity of the solution

Anaerobic-aerobic processes for the treatment of textile dyeing wastewater containing three commercial reactive azo dyes:Effect of number of stages and bioreactor type

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第11期34卷 228-239页

作者： Banafsheh Azimi Elham Abdollahzadeh-Sharghi babak Bonakdarpour Chemical Engineering Department Amirkabir University of TechnologyTehranIran Environmental Group Energy DepartmentMaterials and Energy Research CenterAlborzIran

In this study,the effect of number of stages and bioreactor type on the removal performance of a sequential anaerobic-aerobic process employing activated sludge for the treatment of a simulated textile dyeing wastewater containing three commercial reactive azo dyes was *** stage processes performed better than one stage ones,both in terms of overall organic and color removal,as well as the higher contribution of anaerobic stage to the overall removal performance,thereby making them a more energy efficient *** employment of a moving bed sequencing batch biofilm reactor,which uses both suspended and attached biomass,for the implementation of the anaerobic stage of the process,was compared with a sequencing batch reactor that only employs suspended *** results showed that,although there was no meaningful difference in biomass concentration between the two bioreactors,the latter reactor had better performance in terms of chemical oxygen demand(COD)removal efficiency and rate and color removal *** exploratory tests revealed a difference between the roles of suspended and attached bacterial populations,with the former yielding better color removal whilst the latter had better COD removal *** sequential anaerobic–aerobic process,employing an aerobic membrane bioreactor in the aerobic stage resulted in COD and color removal of 77.1±7.9%and 79.9±1.5%,*** incomplete COD and color removal was attributed to the presence of soluble microbial products in the effluent and the autoxidation of dye reduction metabolites,***,aerobic partial mineralization of the dye reduction metabolites,was experimentally observed.

关键词： Wastewater Anaerobic Aerobic Anaerobic moving bed sequencing batch biofilm reactor Anaerobic sequencing batch reactor Aerobic membrane bioreactor