检索结果-南通市图书馆

Tectonic juxtaposition of crust and continental growth during orogenesis: Example from the Rengali Province, eastern India

引用

Geoscience Frontiers 2015年第4期6卷 537-555页

作者： sankar Bose Susmita Guha Gautam Ghosh Kaushik Das Joydip Mukhopadhyay Department of Geology Presidency University Department of Earth and Planetary Systems Science Hiroshima University PPM Research Group Department of Geology University of Johannesburg

The southern houndary of the Singhbhum Craton witnessed multiple orogenies that juxtaposed thin slice of granulite suite of the Rengali Province against the low-grade granite-greenstone belt of the craton along the E-W trending Sukinda Thrust. The strong southerly dipping mylonitic foliation within the granulites along with the pronlinent down-dip mineral lineation, suggest a northerly-verging thrusting. Mylonitized charnockite at the contact zone contains enclaves of mafic and ultranlafic granulite, whereas granitoid gneiss contains enclaves of pelitic granulite. Mafic granulite enclaves preserve an early （SiM） foliation that formed during DiM deformation. This rock, along with the host charnockite, were intensely deformed by the D2M thrusting event and resulting S2M foliation development in both rock suites. Geothermobaronietric and pseudosection analyses show that the garnet-clinopyroxene-plagioclase- orthopyroxene-ihllenite-quartz assemblage in mafic granulite was stabilized at high-pressure and temperature conditions （10 12 kbar, 860 C） and was overprinted by a fine-grained assemblage of cli- nopyroxene-plagioclase J hornblende that developed during deconlpression （down to 5.5-7.5 I〈bar）. Matrix hornblende shows incipient breakdown to garnet-clinopyroxene-quartz intergrowth due to a granulite facies reworking. A contrasting P-T history is preserved in the pelitic granulite. The peak assemblage garnet-orthopyroxene-cordierite-quartz-rutile was stabilized at -6.0 kbar, 730 C which resulted flom heating of the mid crust magma during the D2M thrusting. The contrasting P-T histories could result flonl the tectonic juxtaposition of lowerand mid-crustal section during the D2M event. Evidences of an early orogenic imprint within the mafic granulite imply involvement of deep continental crust during southward growth of the Singhbhum Craton.

关键词： Singhbhunl cratonRengali Province Granulite enclave Tectonic juxtaposition

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

Near-saturated soil hydraulic conductivity and pore characteristics as influenced by conventional and conservation tillage practices in North-West Himalayan region,India

引用

International Soil and Water Conservation Research 2021年第2期9卷 249-259页

作者： Deepak Singh Alok Kumar Mishra Sridhar Patra sankar Mariappan Nisha Singh ICAR-Indian Institute of Soil and Water Conservation Dehradun248195UttarakhandIndia Sam Higginbottom University of Agriculture Technology and SciencesPrayagraj211007U.PIndia Hemvati Nandan Bahuguna Garhwal University(A Central University) Srinagar(Garhwal)246174UttarakhandIndia

Tillage plays an important role in modifying soil hydraulic *** objective of the present study was to evaluate the effect of conservation tillage practices in a maize-wheat cropping system on nearsaturated soil hydraulic properties and pore characteristics in the North-West Himalayan region,*** treatments *** tillage(CT),minimum tillage(MT),and zero tillage(ZT)were evaluated in terms of field saturated hydraulic conductivity(ks),unsaturated hydraulic conductivity k(h),the inverse of capillary length(a),flow-weighted mean pore radius(r0),numbers of pores per square meter(n0)and water-conducting macroporosity(Ɛ).The above hydraulic conductivity and pore characteristics were derived from steady-state water flux(q)measured using hood infiltrometer at 0,1,and3 cm pressure head for each treatment after seven years of establishment of this tillage *** revealed significantly(p0.50 mm conducted about 63.60,68.01,and 75.97%of total flow(at 0 cm pressure head)in the corresponding water-conducting macroporosity of 0.00030,0.00044,and 0.00069%of soil volume under CT,MT,and ZT,***,zero-tillage based agriculture system was found to improve near-saturated soil hydraulic properties.

关键词： Near-saturated hydraulic conductivity Macropores Tillage Flow weighted mean pore radius Water-conducting macroporosity

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

Machine intelligence,rough sets and rough-fuzzy granular computing:uncertainty handling in bio-informatics and Web intelligence

引用

重庆邮电大学学报（自然科学版） 2010年第6期22卷 720-723,760页

作者： sankar K Pal Indian Statistical Institute Calcutta Indian

Machine intelligence,is out of the system by the artificial intelligence *** is usually achieved by the average computer *** sets and Information Granules in uncertainty management and soft computing and granular computing is widely used in many fields,such as in protein sequence analysis and biobasis determination,TSM and Web service classification Etc.

关键词： machine intelligence rough sets information granules rough-fuzzy case generation protein sequence analysis and biobasis determination TSM web service classification

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

Chinese Grand Strategies in Central Asia:The Role of Shanghai Cooperation Organization and Belt and Road Initiative

引用

Fudan Journal of the Humanities and Social Sciences 2021年第2期14卷 197-223页

作者： Ramakrushna Pradhan Siba sankar Mohanty Department of Social Science Fakir Mohan UniversityNuapadhiBalasore 756020OdishaIndia The Centre for Diaspora Studies Central University of GujaratGandhinagarIndia

Central Asia has long emerged as a hotspot for both the regional and extra-regional powers for two main reasons:its geopolitical location in the middle of Eurasia between Europe,South Asia,the Middle East,Russia and China,and their abundant and mostly unexplored natural *** on huge untapped hydrocarbon potentials the Central Asian geographical entity in recent years has offered enormous opportunity and appeal for global countries and emerged as a grand chessboard for regional and extra-regional *** is one such new pole in the new great game without which any geopolitical and geo-economic debate on Central Asia would be *** this prelude,this article attempts to analyse China's rise in Central Asia and its strategies to strengthen its position in the heartland region by discarding the much-hyped great game thesis and argues that China’s rise is unparallel and unmatched as testified by the recent Belt and Road Initiative of Beijing.

关键词： China Central Asia SCO BRI New Great Game Geostrategy and Energy Security

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

Effect of land cover on channel form adjustment of headwater streams in a lateritic belt of West Bengal(India)

引用

International Soil and Water Conservation Research 2016年第4期4卷 267-277页

作者： Suvendu Roy Abhay sankar Sahu Department of Geography University of KalyaniKalyaniNadia 741235West BengalIndia

Present work is exploring the influence of land cover on channel morphology in 34 headwater catchments of the lateritic belt of West ***-parametric tests(Mann-Whitney U and Kruskal-Wallis)and multivariate analysis(Principal Component Analysis and Canonical Discriminant Function models)have successfully differentiated the performance of land cover on channel morphology adjustment among the three groups of headwater streams(forested,transitional,and agricultural)on the Kunur River Basin(KRB).Spatial Interpolation Techniques reveal that intense land-use change,particularly forest conversion to agricultural land,is significantly increasing channel widths(269%)and cross-section area(78%),whereas agricultural channels become shallower(40%)than would be predicted from forested *** with the dominance of forest and agricultural land are classified as‘C′and‘B′types of streams respectively,as per Rosgen's Stream Classification ***,the work claimed that transitional stream group is the definitive area to exaggerate the river restoration plan to stabilize the anthropogenic deformation on channel morphology.

关键词： Headwater streams Land cover Channel Morphology Canonical discriminant function Spatial interpolation techniques

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

Chaos and Periodicities in Solar Flare Index from Kandilli Observatory during 1976–2014

引用

Research in Astronomy and Astrophysics 2020年第7期20卷 177-186页

作者： Soumya Roy Amrita Prasad Koushik Ghosh Subhash Chandra Panja sankar Narayan Patra Department of Applied Electronics and Instrumentation Engineering Haldia Institute of TechnologyHaldiaMidnapore(E)-721657West BengalIndia Department of Mechanical Engineering Jadavpur UniversityKolkata-700032West BengalIndia Department of Mathematics University Institute of TechnologyThe University of BurdwanBurdwan-713104West BengalIndia Department of Instrumentation and Electronics Engineering Jadavpur UniversityKolkata 700106West BengalIndia

The Solar Flare Index is regarded as one of the most important solar indices in the field of solarterrestrial research. It has the maximum effect on Earth of all other solar activity indices and is being considered for describing the short-lived dynamo action inside the Sun. This paper attempts to study the short as well as long-term temporal fluctuations in the chromosphere region of the Sun using the Solar Flare Index. The daily Solar Flare Index for Northern, Southern Hemisphere and Total Disk are considered for a period from January 1976 to December 2014(total 14 245 days) for chaotic as well as periodic *** 0–1 test has been employed to investigate the chaotic behavior associated with the Solar Flare *** test revealed that the time series data is non-linear and multi-periodic in nature with deterministic chaotic features. For periodic analysis, the Raleigh Power Spectrum algorithm has been used for identifying the predominant periods within the data along with their confidence score. The well-known fundamental period of 27 days and 11 years along with their harmonics are well affirmed in our investigation with a period of 28 days and 10.77 years. The presence of 14 days and 7 days periods in this investigation states the short-lived action inside the Sun. Our investigation also demonstrates the presence of other mid-range periods including the famous Rieger type period which are very much confirming the results obtained by other authors using various solar activity indicators.

关键词： chaos method:data analysis Sun:activity Sun:flares Sun:fundamental parameters Sun:rotation

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

Coating of bioactive glass on magnesium alloys to improve its degradation behavior: Interfacial aspects

引用

Journal of Magnesium and Alloys 2020年第4期8卷 999-1015页

作者： V.S.Yadav M.R.sankar L.M.Pandey centre for the environment indian institute of technology guwahatiassam781039india department of mechanical engineering indian institute of technology guwahatiassam781039india department of mechanical engineering indian institute of technology tirupatiandhra pradesh517506india department of biosciences and bioengineering indian institute of technology guwahatiassam781039india

The preferable mechanical properties of Mg alloys along with excellent compatibility with human bone have established their applicability as implant ***,a higher corrosion/degradation rate of Mg alloys in body fluids limits its biomedical *** this direction,surface modification and coating are explored as appropriate strategies to mode the degradation rate of Mg *** constituents of bioactive glass(BG)provide strength,bio-inertness and bone bonding ***,researchers have explored the coating of BG on Mg alloys and investigated chemical,mechanical and biological properties of the coated *** this review,we have made an attempt to compile the literature works done on the coating of BG on Mg alloys and its *** interfacial aspects of the coated substrates towards the degradation behavior are *** way forward to further improve the coating characteristics of BG coated Mg alloys are remarked.

关键词： Bioactive glass Magnesium alloys Adhesion strength Coating thickness Wettability Degradation

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

Cell size: a key determinant of meristematic potential in plant protoplasts

引用

aBIOTECH 2021年第1期2卷 96-104页

作者： Ipsita Pujari Abitha Thomas Padmalatha SRai Kapaettu Satyamoorthy Vidhu sankar Babu Department of Plant Sciences Manipal School of Life SciencesManipal Academy of Higher EducationManipalKarnataka 576104India Department of Biotechnology Manipal School of Life SciencesManipal Academy of Higher EducationManipalKarnatakaIndia Department of Cell and Molecular Biology Manipal School of Life SciencesManipal Academy of Higher EducationManipalKarnatakaIndia

Metabolic pathway reconstruction and gene edits for native natural product synthesis in single plant cells are considered to be less complicated when compared to the production of non-native *** an efficient eukaryotic system,plants encompass suitable post-translational ***,slow cell division rate and heterogeneous nature is an impediment for consistent product retrieval from plant *** cell synchrony can be attained in cultures developed in *** plant protoplasts capable of division,can potentially enhance the unimpaired yield of target bioactives,similar to microbes and unicellular *** from yeast experiments suggests that‘critical cell size’and division rates for enhancement machinery,primarily depend on culture conditions and nutrient *** cell size control mechanisms in Arabidopsis shoot apical meristem is analogous to yeast notably,fission *** protoplasts isolated from plants are subjected to cell size studies and cell cycle progression in culture,it will answer the underlying molecular mechanisms such as,unicellular to multicellular transition states,longevity,senescence,‘cell-size resetting’during organogenesis,and adaptation to external cues.

关键词： Cell cycle Cell size CRISPR Plant protoplasts TOR signalling

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

Anisotropic transport in a possible quasi-one-dimensional topological candidate:TaNi_(2)Te_(3)

引用

钨科技(英文) 2023年第3期5卷 325-331页

作者： Yi Liu Chun-Qiang Xu Wen-He Jiao Ping-Gen Cai Bin Li Wei Zhou Bin Qian Xue-Fan Jiang Kalaivaman R Raman sankar Xiang-Lin Ke Guang-Han Cao Xiao-Feng Xu Department of Applied Physics Zhejiang University of TechnologyHangzhou 310023China Department of Physics and Astronomy Michigan State UniversityEast LansingMI 48824-2320USA School of Physics and Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 211189China Department of Physics Zhejiang University of Science and TechnologyHangzhou 310023China New Energy Technology Engineering Laboratory of Jiangsu Province and School of Science Nanjing University of Posts and TelecommunicationsNanjing 210023China Department of Physics Changshu Institute of TechnologyChangshu 215500China Institute of Physics Academia SinicaTaipei 11529China Department of Physics Zhejiang UniversityHangzhou 310027China

We report on the solid-state synthesis and the strongly anisotropic transport properties of the ternary telluride TaNi_(2)Te_(3),whose three orthogonal resistivity coefficients exhibit a large ratio of 1.4:1:2294(14:1:2303) at 300 K(2 K),thereby demonstrating its quasi-one-dimensional(q1D) electronic *** Kohler’ s rule in different current/field configurations shows a moderate *** one dimensionality manifests itself in the needle-like shape of crystal,the large anisotropic resistivity and the flat Fermi surface normal to the chain ***,the first-principles calculations also provide evidence for the existence of the nontrivial topological carriers in this q1D *** calculation demonstrates that TaNi_(2)Te_(3) is a strong topological nontrivial material with topological indices(1;1 0 1) and its nontrivial topology is also evidenced from its bulk-surface *** study may therefore offer a new platform for engineering the topologically nontrivial phase in low-dimensional materials,in analogy to the recently discovered q1D topological TaNiTe_(5).

关键词： Topological materials-Quasi-one-dimensionality Telluride

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

Curcumin reverses T cell-mediated adaptive immune dysfunctions in tumor-bearing hosts

引用

Cellular & Molecular Immunology 2010年第4期7卷 306-315页

作者： sankar Bhattacharyya Dewan Md Sakib Hossain Suchismita Mohanty Gouri sankar Sen Sreya Chattopadhyay Shuvomoy Banerjee Juni Chakraborty Kaushik Das Diptendra Sarkar Tanya Das Gaurisankar Sa Division of Molecular Medicine Bose InstituteKolkataIndia

Immune dysfunction is well documented during tumor progression and likely contributes to tumor immune ***81 cytotoxic T lymphocytes(CTLs)are involved in antigen-specific tumor destruction and CD41 T cells are essential for helping this CD81 T cell-dependent tumor *** often target and inhibit T-cell function to escape from immune *** dysfunction includes loss of effector and memory T cells,bias towards type 2 cytokines and expansion of T regulatory(Treg)*** has previously been shown to have antitumor activity and some research has addressed the immunoprotective potential of this plant-derived polyphenol in tumor-bearing *** we examined the role of curcumin in the prevention of tumor-induced dysfunction of T cell-based immune *** observed severe loss of both effector and memory T-cell populations,downregulation of type 1 and upregulation of type 2 immune responses and decreased proliferation of effector T cells in the presence of ***,in turn,prevented this loss of T cells,expanded central memory T cell(TCM)/effector memory T cell(TEM)populations,reversed the type 2 immune bias and attenuated the tumor-induced inhibition of T-cell proliferation in tumor-bearing *** investigation revealed that tumor burden upregulated Treg cell populations and stimulated the production of the immunosuppressive cytokines transforming growth factor(TGF)-b and IL-10 in these ***,however,inhibited the suppressive activity of Treg cells by downregulating the production of TGF-b and IL-10 in these *** importantly,curcumin treatment enhanced the ability of effector T cells to kill cancer ***,our observations suggest that the unique properties of curcumin may be exploited for successful attenuation of tumor-induced suppression of cell-mediated immune responses.

关键词： CD41/CD81 T cell Effector T cell T-regulatory cell FoxP3 Th1/Th2

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

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：