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18篇 您的检索式:作者名="Krishanu"
    题名 作者 年代 出处 被引量
1Low-cost high entropy alloy(HEA)for high-efficiency oxygen evolution reaction(OER)显示文摘Oxygen evolution reaction(OER)is the key step involved both in water splitting devices and rechargeable metal-air batteries,and hence,there is an urgent need for a stable and low-cost material for efficient OER.In the present investigation,Co-Fe-Ga-NiZn(CFGNZ)high entropy alloy(HEA)has been utilized as a low-cost electrocatalyst for OER.Herein,after cyclic voltammetry activation,CFGNZ-nanoparticles(NPs)are covered with oxidized surface and form high entropy(oxy)hydroxides(HEOs),exhibiting a low overpotential of 370 mV to achieve a current density of 10 mA/cm^(2)with a small Tafel slope of 71 mV/dec.CFGNZ alloy has higher electrochemical stability in comparison to state-of-the art RuO2 electrocatalyst as no degradation has been observed up to 10 h of chronoamperometry.Transmission electron microscopy(TEM)studies after 10 h of long-term chronoamperometry test showed no change in the crystal structure,which confirmed the high stability of CFGNZ.The density functional theory(DFT)based calculations show that the closeness of d(p)-band centers to the Fermi level(EF)plays a major role in determining active sites.This work highlights the tremendous potential of CFGNZ HEA for OER,which is the primary reaction involved in water splitting.Lalita Sharma Nirmal Kumar Katiyar Arko Parui Rakesh Das Ritesh Kumar Chandra Sekhar Tiwary Abhisek K.Singh Aditi Halder Krishanu Biswas 2022Nano Research2022,15,6:5
2An ultra-sensitive dual-mode imaging system using metal-enhanced fluorescence in solid phantoms显示文摘在这研究,我们用在稳固的幽灵结合到各种各样的 fluorophores 的金 nanoparticles (GNP ) 开发了一个高度敏感的双模式的成像系统。系统为表面成像,为深织物的成像(多达 1 厘米) 的散开思考(医生) ,和提高金属的荧光(MEF ) 由荧光一生成像显微镜学(FLIM ) 组成。我们检测了熄灭在荧光灯为金 nanospheres (GNS ) 和到荧光黄的金 nanorods (GNR ) 的变化形式的紧张(FI ) ,它在比 GNP 的两种类型的表面电浆子回声(SPR ) 短的波长有一座刺激山峰。提高的 FI 在变化形式被检测到玫瑰精 B (RhB ) 和 Sulforhodamine B (SRB ) ,与在 GNP 的 SPR 区域的刺激山峰。提高的 FI 被 FLIM 大小在答案并且在稳固的幽灵检测。医生大小由记录在相应于 GNR 的吸收系列的波长散布的光的掉的率在稳固的幽灵以内检测了 GNR 的存在。与 MEF 的包括,这种有希望的双模式的成像技术启用有效、敏感的分子、功能的成像。Eran A. Barnoy Dror Fixler Rachela Popovtzer Tsviya Nayhoz Krishanu Ray 2015Nano Research2015,8,12:4
3Loss profiles: A quality of service measure in mobile computing显示文摘Krishanu Seal Suresh Singh 1996Wireless Networks1996,,1:1
4Improved production of reducing sugars from rice husk and rice straw using bacterial cellulase and xylanase activated with hydroxyapatite nanoparticles显示文摘Nalok Dutta Arka Mukhopadhyay Anjan Kr. Dasgupta Krishanu Chakrabarti 2014Bioresource Technology2014,,:1
5Photophysical properties of lycopene organized in Langmuir-Blodgett films: formation of aggregates显示文摘Krishanu Ray Misra T N 1996Journal of Colloid and Interface Science1996,180,:1
6Prophylaxis against atrial fibrillation after cardiac surgery: beneficial effect of perioperative metoprolol 显示文摘Skiba Marina A Pick Adrian W Chaudhuri Krishanu 2013Heart lung & circulation2013,22,8:1
7A new extra large pore organic-inorganic hybrid silicoaluminophosphate显示文摘Krishanu Sarkar Subhash Chandra lahab asia bhaumik 0,,:1
8Microstructure-wear resistance correlation and wear mechanisms of sparkplasma sintered Cu-Pb nanocomposites 显示文摘AMIT S S KRISHANU B BIKRAMJIT B 2014Metallurgical andMaterials Transactions A2014,45,:1
9Experimental and numerical characterization of magnetophoretic separation for MEMS-based biosensor applications显示文摘Nipu Modak Dinabandhu Kejriwal Krishanu Nandy Amitava Datta Ranjan Ganguly 2010Biomedical Microdevices2010,,1:1
10Designing synthetic materials to control stem cell phenotype显示文摘Krishanu Saha Jacob F Pollock David V Schaffer Kevin E Healy 2007Current Opinion in Chemical Biology2007,,4:1
11Disease modeling using pluri- potent stem cells: making sense of disease from bench to bed- side显示文摘KRISHANU S J HURLBUT B 2011Swiss Medical Weekly2011,,141:1
12Substrate Modulus Directs Neural Stem Cell Behavior显示文摘Krishanu Saha Albert J. Keung Elizabeth F. Irwin Yang Li Lauren Little David V. Schaffer Kevin E. Healy 2008Biophysical Journal2008,,9:1
13Langmuir-blodgett mono-layers of long-chain NBD Derivatives on silver islandfilms:well-organized probe layer for the metal-enhancedfluorescence studies显示文摘Krishanu R Ramachandram B 2006J Phys Chem B2006,,13:1
14Differential expression of VEGF-A mRNA by 1713-estradiol in breast tumor cells lacking classical ER-a may be mediated through a variant form of ER-a 显示文摘Krishanu S Snigdha B Neela K 2004Mol Cell Biol2004,262,12:1
15Hydroxyapa- tite-Titanium Bulk Composites for Bone Tissue Engineering Applications显示文摘Alok Kumar Krishanu Biswas Bikramjit Basu 2015J Biomed Mater Res-Part2015,103,2:1
16Degumming of ramie fiber and the production of reducing sugars from waste peels using nanoparticle supplemented pectate lyase显示文摘Arka Mukhopadhyay Nalok Dutta Dhrubajyoti Chattopadhyay Krishanu Chakrabarti 2013Bioresource Technology2013,,:1
17Dependence of fluid flow on cleat aperture distribution and aperture–length scaling: a case study from Gondwana coal seams of Raniganj Formation, Eastern India显示文摘Dimensions and mutual relationships amongst fracture(cleat)parameters such as maximum aperture width,average aperture width,length,spacing etc.control the connectivity within a fracture network and the fluid flow in a coal seam as the matrix permeability,here,is negligible.In this paper,we document cleat size distributions and investigate length–aperture relationships from coals of Raniganj coalfield in Eastern India.This coalfield has a proven extractable reserve of six billion tons of coal and holds immense potential to be one of the largest coal bed methane fields serving India’s growing energy needs.Here,cleat length(L)correlates with corresponding maximum aperture width(Dmax)in a power-law function with an exponent of 0.84(DmaxαL0.84)instead of the commonly observed exponents of 1 or 0.5 applicable for other natural‘opening-mode’fractures.The conventional wisdom pertains that laminar fluid flow(Q)through an isolated,smooth-walled,parallel-plate fracture,embedded in an impermeable matrix,is directly proportional to the cube of its aperture width(b,equivalent to Davg;cubic law:Qαb3).This assumes a linear relationship between length and fracture aperture.However,the modified relationship between cleat length and average aperture width changes the cubic law applicable for Raniganj coal seam and now fluid flow correlates with aperture width in a power-law function with an exponent of 4.25(Qαb4.25)instead of 3(cube).Such simplifications will come handy for the modeling and estimation of fluid flow as it will reduce the effort of cleat length measurement which is anyway difficult and can be misleading due to the risk of undersampling.Krishanu Bandyopadhyay Jyotirmoy Mallik Trishit Ghosh 2020International Journal of Coal Science & Technology2020,7,1:0
18Trace fossil evidences of an Early Miocene paleoseismic event and depositional regime change from the Kutch(Kachchh) Basin显示文摘Unconsolidated siliciclastic sediments can undergo post-burial deformation, which leads to the formation of distinctive sedimentary structures, known as soft-sediment deformation structures(SSDS). The presence of a series of sand volcanoes confined to a particular lithostratigraphic horizon can represent a paleoseismic activity and, thereby, exemplifies the concept of “seismite”. The Kutch Basin has been a tectonically active region since the initiation of eastern Gondwana rifting followed by a tectonic inversion during the Cenozoic due to the collision of the Indian and Eurasian plates. A stratum-bound series of sand volcanoes belonging to the Khari Nadi Formation(KNF) is exposed along the banks of Khari River. They separate the shallow marine deposits below and non-marine deposits above with their characteristic marine and paleosol trace fossil suites, respectively. Although a seismogenic origin has been much debated for the SSDS,the ichnofabric analysis of the sand-volcano-bearing stratum unequivocally points toward such an origin under a shallow seafloor condition. In addition to the sedimentary regime change from an open shallow-marine setting to a continental depositional environment concomitant with basinal uplift, the behavior of the burrowing crustaceans testifies to a syn-depositional development of a fault network associated with the fluidization, sand volcanism, and the resilience of the trace-producers in surviving those processes until the sedimentary regime change in the overlying strata. Although the ichno-sedimentological evidence apparently differs from the previous works that proposed a continuous base-level rise from the beginning of deposition of the Khari Nadi Formation up to the middle part of the overlying Chhasra Formation, the paleoseismic activity,its ichnologic signature, and the depositional regime change refer to a higher-resolution(i.e., lower-order)sequence-stratigraphic change causing a short-duration regression within a longer-duration cycle of base-level rise.Ayush Srivastava Sudipta Dasgupta Krishanu Chatterjee Mohuli Das 2024Journal of Palaeogeography2024,13,1:0
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