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孟加拉国对某些细胞质雄性不育系、保持系和恢复系的评价

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福建稻麦科技 1984年第3期 94-94页

作者： h·c·sarkar 陈兆育

由国际水稻研究所提供的32个水稻品种或品系(包括5套细胞质雄性育系及其5套保持系和9套保持系及其13套恢复系),探索在孟加拉农业气候条件下的稳定性、适应性及其农艺性状。这些试验于1982年7-12月在孟加拉水稻研究所乔伊德夫普尔试验站... 详细信息

由国际水稻研究所提供的32个水稻品种或品系(包括5套细胞质雄性育系及其5套保持系和9套保持系及其13套恢复系),探索在孟加拉农业气候条件下的稳定性、适应性及其农艺性状。这些试验于1982年7-12月在孟加拉水稻研究所乔伊德夫普尔试验站进行。每个参试材料项目单行插植2.5米,间隔25×25厘米,每丛统一插30日龄的秧苗,随机区组设计,二个重复,每公顷肥料使用掌握在N60、P25、K15公斤。记录农业气

关键词：细胞质雄性不育系保持系恢复系孟加拉国南亚

Tale of mitochondria and mitochondria-associated ER membrane in patient-derived neuronal models of Wolfram syndrome

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Neural Regeneration Research 2025年第9期20卷 2587-2588页

作者： Laetitia Aubry Timothy Barrett Sovan sarkar I-STEM CECSCorbeil-EssonnesFrance UniversitéParis-Saclay Universitéd’EvryINSERMI-STEMUMR861Corbeil-EssonnesFrance Institute of cancer and Genomic Sciences Institute of Biomedical ResearchCollege of Medical and Dental SciencesUniversity of BirminghamEdgbastonBirminghamUK Department of Endocrinology Birmingham Women’s and Children’s HospitalSteelhouse LaneBirminghamUK

Mitochondria and mitochondria-associated endoplasmic reticulum membrane in neurodegenerative diseases:Mitochondria generate most of the chemical energy needed to power the biochemical reactions of cells,and thus are often referred to as the"powerhouse"of the ***,this organelle is also involved in a pleth,ora of different cellular functions such as calcium(ca^(2+))homeostasis,apoptosis,oxidative stress,and several metabolic pathways including oxidative phosphorylation,tricarboxylic acid cycle,andβ-oxidation of fatty acids.

关键词： oxidative cycle carboxylic

Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Depicting the role of gas–solid interactions on the hydrodynamics of converging pneumatic riser

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chinese Journal of chemical Engineering 2022年第2期35卷 190-195页

作者： Rashmi Dhurandhar Sumit h.Dhawane Jyoti Prakash sarkar Bimal Das Department of chemical Engineering National Institute of TechnologyDurgapur 713209West BengalIndia Department of chemical Engineering Maulana Azad National Institute of TechnologyBhopal 462003Madhya PradeshIndia

The understanding of the flow characteristics and effect of gas–solid interactions in pneumatic risers is fundamental to investigate to ensure effective design cost-effective ***,to understand the effect of gas–solid interactions on the hydrodynamics of newly proposed conversing risers,this study mainly focused on predicting pressure drop in the dilute phase pneumatic conveying *** experiments were conducted in a converging riser having a convergence angle of 0.2693°.Various solid particles such as sago,black mustard,and alumina have been considered to study the effect of particle sizes and density on the pressure *** experimental outcomes indicate that the total pressure drop increases with an increase in the solid density and gas mass flow ***,smaller particle sizes are also increased the pressure *** empirical correlation is developed for the prediction of total pressure dropΔPTin converging pneumatic riser via dimensional *** dependent variables such as particle and air density,drag force,acceleration due to gravity,the mass flow rate of air and particle,the diameter of particle and converging riser,the height of converging riser were considered to develop the empirical *** established relationship is tested,and experimental data have been fitted for its *** estimated relative error of less than 0.05 proved the significance of the developed ***,it can be stated that the established relationship is useful in studying the effects of various parameters on the pressure drop across the length of the conversing riser.

关键词： Pneumatic conveying Pressure drop converging riser Gas-solid dynamics

Prostate cancer stem cells： molecular characterization for Largeted therapy

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Asian Journal of Andrology 2012年第5期14卷 659-660页

作者： Asfar S Azmi Fazlul h sarkar Department of Pathology Karmanos Cancer Institute Wayne State University School of Medicine Detroit MI 48201 USA Department of Oncology Karmanos Cancer Institute Wayne State University School of Medicine Detroit M148201 USA

The article published recently in cell Stem cell from the laboratory of Dr Tang showed the existence and molecular fingerprints of prostate cancer stem cells （cScs）, and this report opens newer ave- nues for developing and designing novel therapeutic strategies for targeted elimina- tion of these cScs toward prostate cancer therapy.

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Spatio-temporal evaluation of Zr plasma parameters in a single-beam-splitting double-pulse laser-induced plasma

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Plasma Science and Technology 2021年第2期23卷 47-56页

作者： Arnab sarkar Manjeet SINGh Fuel chemistry Division Bhabha Atomic Research CentreMumbai 400085India homi Bhabha National Institute AnushaktinagarMumbai 400094India

The plasma shielding effect is one of the major weaknesses of laser-induced breakdown spectroscopy(LIBS)as it causes non-linearity in signal *** LIBS is typically carried out in constant laser energy,this non-linearity causes a reduction in *** this work,we systematically examine laser-induced plasma,formed by two different excitation source modes,*** pulse(SP)-excitation and single-beam-splitting double-pulse(SBS-DP)-excitation over Zr-2.5%Nb *** two most important plasma parameters influencing the emission line intensity,plasma temperature(Te)and electron density(Ne)were studied and compared for both modes of laser *** of the results conclusively demonstrates that due to the splitting of the laser energy in the SBS-DP mode,the plasma shielding effect is significantly *** reduced plasma shielding translates to an increased laser–sample coupling under SBS-DP *** imaging of the total intensity of the laser-induced plasma in both excitation modes was also *** study shows how the plasma shielding effect can be reduced to improve the analytical quality of the LIBS methodology.

关键词： LIBS single-beam-splitting double pulse spatial-temporal evolution plasma temperature electron density

Seismic bearing capacity of strip footing on partially saturated soil using modal response analysis

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Earthquake Engineering and Engineering Vibration 2022年第3期21卷 641-662页

作者： Abhijit Anand Rajib sarkar Department of civil Engineering IIT(ISM)DhanbadDhanbad 826004India

The present study proposes a novel and simplified methodology to assess the seismic bearing capacity(SBc) of a shallow strip footing by incorporating strength non-linearity arising due to partial saturation of a soil matrix. Furthermore, developed methodology incorporates the modal response analysis of soil layers to assess SBc. A constant matric suction distribution profile has been considered throughout the depth of the soil. The Van Genuchten equation and corresponding fitting parameters have been considered to quantify matric suction in the analysis. SBc has been obtained for three different geomaterials;viz. sand, fly ash and clay, based on their predominant grain size and diverse soil water characteristics curve(SWcc) attributes. Variation of SBc with different modes of vibration and damping ratio are reported for ranges of matric suction pertinent to the geomaterials considered in the study. The relative significance of matric suction on SBc has been reported for suction values within the transition zone of each geomaterial. It is observed that the SBc of sand is drastically reduced, with matric suction reaching beyond the residual suction value. The SBc of fly ash remains constant beyond the residual suction value, whereas the SBc of clay shows an increasing trend toward the practical range of matric suction values.

关键词： seismic bearing capacity modal analysis matric suction

Spectral lags of flaring events in LS I+61°303 from RXTE Observations

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Research in Astronomy and Astrophysics 2016年第7期16卷 29-38页

作者： Tamal sarkar Samir sarkar Arunava Bhadra high Energy&cosmic Ray Research centre University of North BengalSiliguriWB 734013India University Science Instrumentation centre University of North BengalSiliguriWB 734013India

This work reports the first discovery of（negative） spectral lags in X-ray emission below 10 ke V from the gamma ray binary LS I＋61？303 during large flaring episodes using Rossi X-ray Timing Explorer（RXTE） observations. It is found from the RXTE data that during the flares, low energy（3–5 ke V） variations lead the higher energy（8–10 ke V） variations by a few tens of seconds whereas no significant time lag is observed during the non-flaring states. The observed spectral lag features for flaring events suggest that inverse compton scattering may be operating, at least in some part of the system. Another possibility is that the sites of particle acceleration may be different for flaring and non-flaring events such as in the microquasar model, in which the flaring radiation may come from hot spots sitting above the black hole while steady state emissions are due to the jets.

关键词： X-rays:binaries X-rays:individual(LS I+61?303)

Dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 139-156页

作者： h.hOSSEINI O.BALILAShAKI Department of Mechanical Engineering Faculty of EngineeringGolestan University

The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is assumed that the source is located outside the cavity at a specified distance from the borehole axis. The magnitudes of the hoop and radial stresses beside the pore pressures exerted on the interface and inside the porous medium surrounding the borehole are calculated and discussed. Biot's poroelastic modeling along with three types of boundary conditions for the cylindrical interface including the ideal fluid, empty borehole, and rigid inclusion with a hard boundary is employed for the analysis. Utilizing a proper translational addition theorem for expressing the incident spherical wave in terms of cylindrical wave expansions, the proposed boundary conditions at the interface are satisfied. Stresses are formulated by means of wave potential functions in a three-dimensional(3D) manner. The effects of the frequency and the radial distance between the source and borehole on the induced stresses are examined for the first cylindrical modes over frequency spectra. Two permeability conditions for the interface and three types of soils for the porous formation are considered throughout the analysis. To give an overall outline of the study, a numerical example is presented. The results clearly indicate that the distance is a key parameter and has considerable effects on the induced stress values. In addition, the interface permeability condition and soil characteristics play an important role in determining the dynamic response of the borehole. Finally,the obtained results are compared with the relevant analyses existing in the literature for some limit cases, and good agreement is achieved.

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