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杜伦小麦细粉碱面条的鉴定

面粉通讯 2007年第2期 29-35页

作者： B.X.Fu E.G.Assefaw a.k.sarkar G.R.Carson 顾华孝不详南京财经大学食品科学与工程学院 210003

加拿大二等杜伦小麦(CWAD)细粉生产两种主要亚式黄碱面条的鉴定。比较了CWAD与出粉率60%的加拿大一等红皮春小麦(CWRS)和加拿大一等硬质白皮春小麦(CWHWS)一等粉生产的日式普通型(日式拉面型,ramen)碱面条。在色泽上,CWAD与CWRS或CWHWS... 详细信息

加拿大二等杜伦小麦(CWAD)细粉生产两种主要亚式黄碱面条的鉴定。比较了CWAD与出粉率60%的加拿大一等红皮春小麦(CWRS)和加拿大一等硬质白皮春小麦(CWHWS)一等粉生产的日式普通型(日式拉面型,ramen)碱面条。在色泽上,CWAD与CWRS或CWHWS相比,其面条更亮,呈现黄色要强烈得多。CWAD、CWRS及CWHWS面条,3h和24hb*值,分别为39.6和38.1、25.5和24.5以及27.8和26.0;3h和24hL*值,分别为75.4和70.1、75.9和71.3以及78.3和73.4。熟面条的所有质构特性,杜伦粉面条类似于CWRS面条。CWAD粉相比于低蛋白质CWHWS一等粉,其闽式(Hokkien)半熟面条非常之亮,具有很深的柠檬黄色和极佳的外形,而普通小麦粉则不可能取得这样的效果。CWAD相比于CWHWS,其闽式面条质构更紧,增重稍小。总的说来,杜伦小麦细粉面条比CWRS及CWHWS面条具有更佳的色泽的质构。杜伦小麦细粉能如同优质普通小麦粉那样加工出光滑、均匀水合的碱面条。采用杜伦小麦细粉加工面条,无须调整配方和加工工艺。

关键词：杜伦小麦小麦粉亚式面条加工工艺面质特性鉴定

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对微量元素提高肥效的研究

中氮肥 1988年第5期 103-107页

作者： D.L.Deb G.N.Gupta M.B.Meisheri R.k.Rattan a.k.sarkar 李福生齐鲁石化公司第一化肥厂

微量元素对农作物增产的作用尚未被人们所认识和按受,实际上即使提供最好的化肥和适宜的耕作,农作物产量可能仅仅由于微量元素不足而受到影响。印度农科院通过放射性同位素对锌、铁、锰、铜、氯等微量元素进行过基础研究,得出的结论是... 详细信息

微量元素对农作物增产的作用尚未被人们所认识和按受,实际上即使提供最好的化肥和适宜的耕作,农作物产量可能仅仅由于微量元素不足而受到影响。印度农科院通过放射性同位素对锌、铁、锰、铜、氯等微量元素进行过基础研究,得出的结论是微量元素对农作物的生长和常量营养元素同等重要,必须进行适当的调查研究。研究分析发现:农田和果园中农作物的微量元素锌、铁普遍不足,而蔬菜作物主要是硼、钼不足。

关键词：锌肥作物微量元素痕量元素肥效土壤条件农作物生长养份自扩散系数施用量微量元素肥料痕量元素肥料

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

Enhanced strength in novel nanocomposites prepared by reinforcing graphene in red soil and fly ash bricks

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International Journal of Minerals,Metallurgy and Materials 2019年第10期26卷 1322-1328页

作者： Jit sarkar D.k.Das Department of Metallurgical and Materials Engineering Indian Institute of TechnologyKharagpur 721302West BengalIndia Department of Mechanical Engineering Indian Institute of Technology(Indian School of Mines)Dhanbad 826004JharkhandIndia

Low-dimensional nanomaterials such as graphene can be used as a reinforcing agent in building materials to enhance the strength and durability. Common building materials burnt red soil bricks and fly ash bricks were reinforced with various amounts of graphene, and the effect of graphene on the strength of these newly developed nanocomposites was studied. The fly ash brick nanocomposite samples were cured as per their standard curing time, and the burnt red soil brick nanocomposite samples were merely dried in the sun instead of being subjected to the traditional heat treatment for days to achieve sufficient strength. The water absorption ability of the fly ash bricks was also discussed. The compressive strength of all of the graphene-reinforced nanocomposite samples was tested, along with that of some standard (without graphene) composite samples with the same dimensions, to evaluate the effects of the addition of various amounts of graphene on the compressive strength of the bricks.

关键词： graphene burnt red soil brick fly ash brick nanocomposites compressive strength

Facies analysis and paleoenvironmental interpretation of Piacenzian carbonate deposits from the Guitar Formation of Car Nicobar Island,India

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Geoscience Frontiers 2013年第6期4卷 755-764页

作者： Amit k.Ghosh Suman sarkar Birbal Sahni Institute of Palaeobotany 53 University RoadLucknow 226 007India

Facies characterization of Piacenzian （late Pliocene） carbonate sediments of the Guitar Formation in Car Nicobar Island,India and the subsequent integration of paleoecological data have been applied to interpret the paleoenvironment of the coralline algal-reef ***-section analysis reveals that Amphiroa,Corallina and Jania are the dominant geniculate corallines,while Lithothamnion,Mesophyllum,Phymatolithon,Lithophyllum,Spongites and Lithoporella are the major non-geniculate corallines contributing to the sedimentary *** small and larger benthic foraminifera also dominate the biogenic ***,barnacle shells,echinoid spines,fragments of bryozoans,mollusks and ostracodes are the subordinate *** dominate the studied facies while packstones and boundstones （with wackestone elements） are the sub lithofacies showing a fair *** carbonate facies presenting a complete reef complex have been distinguished that were deposited in shallow intertidal,back-reef shelf/lagoon,reef and deeper fore-reef shelf *** of coralline algal and benthic foraminiferal assemblages,taphonomic signatures of abrasion and fragmentation,grain size,angularity and encrustation indicate a shallow to relatively deeper bathymetric horizon of approximately 10-60 m that corresponds to a regime of high to moderate hydrodynamic conditions.

关键词： Facies analysis Coralline algae Benthic foraminifera Piacenzian Guitar Formation Car Nicobar

Curcumin as a potential therapeutic candidate for Helicobacter pylori associated diseases

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World Journal of Gastroenterology 2016年第9期22卷 2736-2748页

作者： Avijit sarkar Ronita De Asish k Mukhopadhyay Division of Bacteriology National Institute of Cholera and Enteric Diseases

Curcumin, a yellow pigment and principal polyphenolic Curcuminoid obtained from the turmeric rhizome Curcuma longa, is commonly used as a food-coloring agent. Studies suggest that curcumin has a wide range of beneficial properties e.g., anti-inflammatory, antioxidant, anti-cancer, anti-proliferative, anti-fungal and anti-microbial. These pleiotropic activities prompted several research groups to elucidate the role of curcumin in Helicobacter pylori(H. pylori) infection. This is the first review with this heading where we discussed regarding the role of curcumin as an anti-H. pylori agent along with its potential in other gastrointestinal diseases. Based on several in vitro, early cell culture, animal research and few pre-clinical trials, curcumin projected as a potential therapeutic candidate against H. pylori mediated gastric pathogenesis. This review sheds light on the anti-H. pylori effects of curcumin in different models with meticulous emphasis on its anti-oxidant, anti-inflammatory and anti-carcinogenic effects as well as some critical signaling and effecter molecules. Remarkably, non-toxic molecule curcumin fulfills the characteristics for an ideal chemopreventive agent against H. pylori mediated gastric carcinogenesis but the foremost challenge is to obtain the optimum therapeutic levels of curcumin, due to its low solubility and poor bioavailability. Further, we have discussed about the possibilities for improving its efficacy and bioavailability. Lastly, we concluded with the anticipation that in near future curcumin may be used to develop a therapeutic drug against H. pylori mediated gastric ailments through improved formulation or delivery systems, facilitating its enhanced absorption and cellular uptake.

关键词： Curcumin Helicobacter pylori Duodenal ulcer Gastric cancer Anti-oxidant Anti-inflammatory Nuclear factor-κ B

Fabrication of Superhydrophobic Surfaces on Aluminum Alloy Via Electrodeposition of Copper Followed by Electrochemical Modification

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Nano-Micro Letters 2011年第3期3卷 160-165页

作者： Ying Huang D.k.sarkar X-Grant Chen University Research Center on Aluminum (CURAL) University of Qubec at Chicoutimi

Superhydrophobic aluminum surfaces have been prepared by means of electrodeposition of copper on aluminum surfaces, followed by electrochemical modification using stearic acid organic molecules. Scanning electron microscopy(SEM) images show that the electrodeposited copper films follow "island growth mode" in the form of microdots and their number densities increase with the rise of the negative deposition potentials. At an electrodeposition potential of-0.2 V the number density of the copper microdots are found to be 4.5×104cm^(-2)that are increased to 2.9×105cm^(-2)at a potential of-0.8 V. Systematically, the distances between the microdots are found to be reduced from 26.6 μm to 11.03 μm with the increase of negative electrochemical potential from-0.2 V to-0.8 V. X-ray diffraction(XRD) analyses have confirmed the formation of copper stearate on the stearic acid modified copper films. The roughness of the stearic acid modified electrodeposited copper films is found to increase with the increase in the density of the copper microdots. A critical copper deposition potential of-0.6 V in conjunction with the stearic acid modification provides a surface roughness of 6.2 μm with a water contact angle of 157?, resulting in superhydrophobic properties on the aluminum substrates.

关键词： Superhydrophobic aluminum surface Water contact angle Copper microdots Surface roughness Electrochemical modification

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