检索结果-南通市图书馆

Macroalgal deep genomics illuminate multiple paths to aquatic,photosynthetic multicellularity

Molecular Plant 2024年第5期17卷 747-771页

作者： David R.Nelson Alexandra Mystikou Ashish Jaiswal Cecilia Rad-Menendez Michael J.Preston Frederik De Boever Diana C.El Assal Sarah Daakour Michael W.Lomas Jean-Claude Twizere David H.Green William C.Ratcliff kourosh Salehi-Ashtiani Division of Science and Math New York University Abu DhabiAbu DhabiUAE Center for Genomics and Systems Biology(CGSB) New York University Abu DhabiAbu DhabiUAE Biotechnology Research Center Technology Innovation InstitutePO Box 9639Masdar CityAbu DhabiUAE Culture Collection of Algae and Protozoa Scottish Association for Marine ScienceObanScotlandUK National Center for Marine Algae and Microbiota Bigelow Laboratory for Ocean SciencesEast BoothbayMEUSA Laboratory of Viral Interactomes GIGA InstituteUniversity of LiegeLiegeBelgium School of Biological Sciences Georgia Institute of TechnologyAtlantaGAUSA

Macroalgae are multicellular,aquatic autotrophs that play vital roles in global climate maintenance and have diverse applications in biotechnology and eco-engineering,which are directly linked to their multicellularity ***,their genomic diversity and the evolutionary mechanisms underlying multicellularity in these organisms remain *** this study,we sequenced 110 macroalgal genomes from diverse climates and phyla,and identified key genomic features that distinguish them from their microalgal *** for cell adhesion,extracellular matrix formation,cell polarity,transport,and cell differentiation distinguish macroalgae from microalgae across all three major phyla,constituting conserved and unique gene sets supporting multicellular *** genes show phylum-and climate-specific expansions that may facilitate niche ***,our study reveals genetic determinants of convergent and divergent evolutionary trajectories that have shaped morphological diversity in macroalgae and provides genome-wide frameworks to understand photosynthetic multicellular evolution in aquatic environments.

关键词： macroalgae multicellularity comparative genomics evolution adhesome endogenous viral elements

来源：

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

The Energy Distribution of a Noncommutative Reissner–Nordström Black Hole

引用

Chinese Physics Letters 2013年第9期30卷 25-28页

作者： kourosh Nozari A.Yazdani Center for Excellence in Astronomy and Astrophysics(CEAAI-RIAAM)-Maragha P.O.Box55134-441MaraghaIran Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-95447BabolsarIran

We study the energy distribution of a noncommutative Reissner–Nordström black *** consider both Ein-stein and Møller prescriptions,and compare our results with the corresponding results obtained recently for a Schwar... 详细信息

关键词： Reissner commutative black

来源：

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

A Consistency Check for the Free Scalar Field Theory Realization of the Doubly Spacial Relativity

引用

Communications in Theoretical Physics 2019年第6期71卷 677-684页

作者： Mohsen Khodadi kourosh Nozari Young Researchers and Elite Club Firoozkooh BranchIslamic Azad UniversityFiroozkoohIran Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box47416-95447BabolsarIran Research Institute for Astronomy and Astrophysics of Maragha(RIAAM) P.O.Box55134-441MaraghaIran

We study a free scalar field theory in the framework of the Magueijo-Smolin model of the 'Doubly Special Relativity'(DSR) which is a non-linear realization of the action of the Lorentz group on momentum space admitting an invariant energy cutoff. We show that unlike the standard quantum field theory, the Klein-Gordon equation obtained via Euler-Lagrange field equation and Heisenberg picture equation of motion of the field are not equivalent in this framework,at least up to the first order of the Planck length scale.

关键词： quantum gravity phenomenology doubly special relativity quantum field theory Klein-Gordon equation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Baryogenesis in f(R, T) Gravity

引用

Communications in Theoretical Physics 2018年第10期70卷 451-458页

作者： kourosh Nozari Fateme Rajabi Department of Physics Faculty of Basic Sciences University of Mazandaran P.O. Box 47416-95447 Babolsar Iran Research Institute for Astronomy and Astrophysics of Maragha (RIAAM) P.O. Box 55134-441 Maragha Iran

We study gravitational baryogenesis in the context of f(R, T) gravity where the gravitational Lagrangian is given by a generic function of the Ricci scalar R and the trace of the stress-energy tensor T. We explore how this type of modified gravity is capable to shed light on the issue of baryon asymmetry in a successful manner. We consider various forms of baryogenesis interaction and discuss the effect of these interaction terms on the baryon to entropy ratio in this setup. We show that baryon asymmetry during the radiation era of the expanding universe can be non-zero in this framework. Then, we calculate the baryon to entropy ratio for some specific f(R, T) models and by using the observational data, we give some constraints on the parameter spaces of these models.

关键词： baryogenesis modified gravity observational data

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Phantom-Like Effects on Warped DGP Brane

引用

Communications in Theoretical Physics 2010年第10期54卷 773-780页

作者： kourosh Nozari Tahereh Azizi Department of Physics Faculty of Basic SciencesUniversity of Mazandaran

We study phantom-like effect on the DGP brane embedded in a five-dimensional AdS bulk. We show that this effect can be realized without phantom matter on this warped DGP brahe. We investigate the role played by the bulk cosmological constant on the phantom-like effect on the brane and we show that it tends to reduce this effect. Also, warped compactification of the bulk manifold increases the values of the effective and total equation of state parameters of the model relative to the case with Minkowski bulk. We extend our study to the ease that induced curvature on the brahe is modified in the spirit of the f（R）-gravity.

关键词： Braneworld cosmology dark energy models warped DGP scenario modified gravity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cosmological perturbations in a noncommutative braneworld inflation

引用

Research in Astronomy and Astrophysics 2012年第6期12卷 625-635页

作者： kourosh Nozari Siamak Akhshabi Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-95447BabolsarIran

We use the smeared, coherent state picture of noncommutativity to study evolution of perturbations in a noncommutative braneworld scenario. Within the stan- dard procedure of studying braneworld cosmological perturbations, we study the evo- lution of the Bardeen metric potential and curvature perturbations in this model. We show that in this setup, the early stage of the universe＇s evolution has a transient phan- tom evolution with imaginary effective sound speed.

关键词： early universe cosmology -- cosmology theory

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Braneworld Inflation with Induced Gravity and Curvature Effect

引用

Communications in Theoretical Physics 2011年第6期55卷 1132-1146页

作者： kourosh Nozaril S. Shafizadeh Department of Physics Science and Research BranchIslamic Azad UniversityMazandaranIran Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-95447BabolsarIran

We construct a general braneworld inflation scenario where the inflaton field evolves on the DGP brahe and curvature effects are taken into account via incorporation of the Gauss-Bonnet term in the bulk action. While induced gravity on the DGP brane modifies the IR limit of general relativity, the Gauss-Bonnet term in the bulk action modifies the UV sector of the theory. In this setup, the dynamics of perturbations on the brane are studied with details and some confrontation with recent observations are discussed. While the Einstein-Gauss-Bonnet inflation scenario favors only a red spectrum of the scalar perturbation, pure DGP and GBIG inflation models have the capacity to realize the blue spectrum too. In addition, the GBIG inflation scenario in the large field limit requires a smaller number of e-folds than other proposed scenarios in the same situation. For the tensor-to-scalar ratio, the GBIG inflation scenario g/yes a better fit with observationally supported value of R≈ 0.24.

关键词： inflation cosmological perturbations induced gravity Gauss-Bonnet effect

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Corrosion behavior of Ce-doped Ni-10Cu-11Fe-6Al(wt%) inert anode in molten CaCl_2 salt

引用

Journal of Rare Earths 2019年第2期37卷 218-224页

作者： Mehdi Alzamani kourosh Jafarzadeh Arash Fattah-alhosseini Malek Ashtar University of Technology Department of Materials Engineering Bu-Ali Sina University

In this research the effect of cerium dopingon corrosion behavior of Ni-10 Cu-11 Fe-6 Al(wt%) alloy as a novel inert anode in titanium electrolytic production was investigated. The samples, including un-doped and Ce-doped nickel-based alloys, were prepared using vacuum induction melting(VIM) process and then exposed to the electrolysis in molten calcium chloride at 900C at à1.6 V versus graphite reference electrode for different immersion time. The surface and cross-section of the samples were characterized using scanning electron microscopy(SEM), and their electrochemical behavior was investigated by electrochemical impedance spectroscopy(EIS). The results show that the un-doped samples have greater number of voids and porosities as compared to that of the 0.0064 wt% Ce-doped samples(as the optimum content of cerium in the alloy). Thus, the nickel-based alloy becomes less sensitive to the pitting by addition of cerium. The corrosion penetration depth reaches about 244 mm after 16 h of electrolysis in the un-doped sample, while was approximately 103 mm for the 0.0064 wt% Ce-doped sample, which is an indication that the corrosion penetration depth decreases by adding small amounts of Ce.

关键词： Ni-10Cu-11Fe-6Al Ce doping Corrosion behavior Molten CaCl2 salt Nickel-based alloy Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Calculation of maximum surface settlement induced by EPB shield tunnelling and introducing most effective parameter

引用

Journal of Central South University 2016年第12期23卷 3273-3283页

作者： Sayed Rahim Moeinossadat Kaveh Ahangari kourosh Shahriar Department of Mining Engineering Science and Research Branch Islamic Azad University Tehran Iran Department of Mining and Metallurgical Engineering Amirkabir University of Technology Tehran Iran

This study aims to predict ground surface settlement due to shallow tunneling and introduce the most affecting parameters on this *** on data collected from Shanghai LRT Line 2 project undertaken by TBM-EPB method,this research has considered the tunnel's geometric,strength,and operational factors as the dependent *** first,multiple regression(MR) method was used to propose equations based on various *** results indicated the dependency of surface settlement on many parameters so that the interactions among different parameters make it impossible to use MR method as it leads to equations of poor *** such,adaptive neuro-fuzzy inference system(ANFIS),was used to evaluate its capabilities in terms of predicting surface *** generated ANFIS models,the model with all input parameters considered produced the best prediction,so as its associated R^2 in the test phase was obtained to be *** equations and models in which operational factors were taken into consideration gave better prediction results indicating larger relative effect of such *** sensitivity analysis of ANFIS model,cosine amplitude method(CAM) was employed; among other dependent variables,fill factor of grouting(n) and grouting pressure(P) were identified as the most affecting parameters.

关键词： surface settlement shallow tunnel tunnel boring machine (TBM) multiple regression (MR) adaptive neuro-fuzzyinference system (ANFIS) cosine amplitude method (CAM)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Prediction of hydro-suction dredging depth using data-driven methods

引用

Frontiers of Structural and Civil Engineering 2021年第3期15卷 652-664页

作者： Amin MAHDAVI-MEYMAND Mohammad ZOUNEMAT-KERMANI kourosh QADERI Water Engineering Department Shahid Bahonar University of KermanKerman***Iran

In this study,data-driven methods(DDMs)including different kinds of group method of data handling(GMDH)hybrid models with particle swarm optimization(PSO)and Henry gas solubility optimization(HGSO)methods,and simple equations methods were applied to simulate the maximum hydro-suction dredging depth(h_(s)).Sixty-seven experiments were conducted under different hydraulic conditions to measure the h_(s).Also,33 data samples from three previous studies were *** model input variables consisted of pipeline diameter(d),the distance between the pipe inlet and sediment level(Z),the velocity of flow passing through the pipeline(u_(0)),the water head(H),and the medium size of particles(D_(50)).Data-driven simulation results indicated that the HGSO algorithm accurately trains the GMDH methods better than the PSO algorithm,whereas the PSO algorithm trained simple simulation equations more *** all used DDMs,the integrative GMDH-HGSO algorithm provided the highest accuracy(RMSE=7.086 mm).The results also showed that the integrative GMDHs enhance the accuracy of polynomial GMDHs by∼14.65%(based on the RMSE).

关键词： sedimentation water resources dam engineering machine learning heuristic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：