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Moisture dependent physical properties of Lagenaria siceraria seed

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International Journal of Agricultural and biological Engineering 2013年第4期6卷 111-120页

作者： prashant Pandharinath Said Rama Chandra Pradhan Department of Farm Engineering Institute of Agricultural SciencesBanaras Hindu UniversityVaranasiUttar Pradesh 221005India

The investigation was done to evaluate the effect of moisture content on some physical properties of Lagenaria siceraria *** study was conducted at five moisture levels including 8.84%,10.10%,11.89%,12.60%and 15.10%(w.b.).Results showed that the mean value of principal dimensions,average diameters,surface area and 1000 seed mass increased linearly but aspect ratio decreased with increase in moisture *** sphericity increased in the moisture range of 8.84%to 11.89%but decreased with further raise in the moisture up to 15.10%.Gravimetric properties like bulk density increased with increase in moisture content however true density and porosity decreased linearly with increase in moisture *** of repose and terminal velocity increased linearly with moisture content of the *** coefficient of friction increased linearly with seed moisture content on five experimental surfaces(plywood,galvanized iron,glass and plastic).The information pertaining to moisture dependant physical properties of Lagenaria siceraria seeds may become an essential part in design of processing machines and its unit operations,design of dehulling,oil expression and other processing equipments.

关键词： Lagenaria siceraria physical properties angle of repose aspect ratio gravimetric properties sphericity

Electron Paramagnetic Resonance and Optical Absorption of VO2＋ Doped bis （glycinato） Mg （II） Monohydrate Single Crystals

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Chinese Physics Letters 2010年第1期27卷 238-241页

作者： prashant Dwivedi Ram Kripal Santwana Shukla Department of Physics Kali Charan Nigam Institute of Technology Banda (U.P.) 210001 India EPR Laboratory Department of Physics University of Allabad Allahabad 211002 India

We investigate the electron paramagnetic resonance （EPR） of VO2＋ ions in bis （glycinato） Mg （II） monohydrate single crystals at room temperature. Detailed EPR analysis indicates the presence of only one VO2＋ site. The vanadyl complexes are found to take up the substitutional position. The angular variation of the EPR spectra in three planes a＊b, bc and ca＊ are used to determine principal g and A tensors. The values of spin Hamiltonian parameters are gx= 2.1447× 10-4, gy= 1.9974×10-4, gz= 1.9131×10-4, Ax= 49×10-4, Ay= 60×10-4, Az= 82×10-4 cm-1. The optical absorption study is also carried out at room temperature and absorption bands are assigned to various transitions. The theoretical band positions are obtained using energy expressions and a good agreement is found with the experimental data. by correlating EPR and optical data, different molecular orbital coefficients are evaluated and the nature of bonding in the crystal is discussed.

关键词： Temperature Data Uses Absorption Timing Time

Urban heat mitigation by green and blue infrastructure:Drivers,effectiveness,and future needs

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The Innovation 2024年第2期5卷 145-166页

作者： prashant Kumar Sisay E.Debele Soheila Khalili Christos H.Halios Jeetendra Sahani Nasrin Aghamohammadi Maria de Fatima Andrade Maria Athanassiadou Kamaldeep bhui Nerea Calvillo Shi-Jie Cao Frederic Coulon Jill L.Edmondson David Fletcher Edmilson Dias de Freitas Hai Guo Matthew C.Hort Madhusudan Katti Thomas Rodding Kjeldsen Steffen Lehmann Giuliano Maselli Locosselli Shelagh K.Malham Lidia Morawska Rajan Parajuli Christopher D.F.Rogers Runming Yao Fang Wang Jannis Wenk Laurence Jones Global Centre for Clean Air Research(GCARE) School of SustainabilityCivil and Environmental EngineeringFaculty of Engineering and Physical SciencesUniversity of SurreyGuildford GU27XHUK Institute for Sustainability University of SurreyGuildford GU27XHSurreyUK School of built Environment University of ReadingWhiteknightsReading RG66BUUK School Design and the built Environment Curtin University Sustainability Policy InstituteKent StBentley 6102Western Australia Harry butler Institute Murdoch UniversityMurdoch 6150Western Australia Atmospheric Sciences Department Institute of AstronomyGeophysics and Atmospheric SciencesUniversity of Sao PauloSao Paulo 05508-090Brazil Met Office FitzRoy RoadExeter EX13PBUK Department of Psychiatry and Nuffield Department of Primary Care Health Sciences Wadham CollegeUniversity of OxfordOxfordUK Centre for Interdisciplinary Methodologies University of WarwickWarwickUK School of Architecture Southeast University2 SipailouNanjing 210096China Cranfield University School of WaterEnvironment and EnergyCranfield MK430ALUK Plants PhotosynthesisSoil ClusterSchool of BiosciencesUniversity of SheffieldSheffield S102TNUK UK Centre for Ecology&Hydrology Environment Centre WalesDeiniol RoadBangor LL572UWUK Air Quality Studies Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongChina Department of Forestry and Environmental Resources Faculty Excellence Program for Leadership in Public ScienceNorth Carolina State UniversityChancellorRaleighNC 27695USA Departments of Architecture&Civil Engineering and Chemical EngineeringUniversity of BathBath BA27AYUK School of Architecture University of NevadaLas VegasNV 89154USA Department of Tropical Ecosystems Functioning Center of Nuclear Energy in AgricultureUniversity of São PauloPiracicaba 13416-000Sao PauloBrazil School of Ocean Sciences Bangor UniversityMenai BridgeAnglesey LL595 ABUK International Laboratory for Air Quality and Health Science and Engine

The combination of urbanization and global warming leads to urban overheating and compounds the frequency and intensity of extreme heat events due to climate ***,the risk of urban overheating can be mitigated by urban green-blue-grey infrastructure(GbGI),such as parks,wetlands,and engineered greening,which have the potential to effectively reduce summer air *** many reviews,the evidence bases on quantified GbGI cooling benefits remains partial and the practical recommendations for implementation are *** systematic literature review synthesizes the evidence base for heat mitigation and related co-benefits,identifies knowledge gaps,and proposes recommendations for their implementation to maximize their *** screening 27,486 papers,202 were reviewed,based on 51 GbGI types categorized under 10 main *** GbGI(green walls,parks,street trees)have been well researched for their urban cooling ***,several other GbGI have received negligible(zoological garden,golf course,estuary)or minimal(private garden,allotment)*** most efficient air cooling was observed in botanical gardens(5.0±3.5℃),wetlands(4.9±3.2℃),green walls(4.1±4.2℃),street trees(3.8±3.1℃),and vegetated balconies(3.8±2.7℃).Under changing climate conditions(2070–2100)with consideration of RCP8.5,there is a shift in climate subtypes,either within the same climate zone(e.g.,Dfa to Dfb and Cfb to Cfa)or across other climate zones(e.g.,Dfb[continental warm-summer humid]to bSk[dry,cold semi-arid]and Cwa[temperate]to Am[tropical]).These shifts may result in lower efficiency for the current GbGI in the *** the importance of multiple services,it is crucial to balance their functionality,cooling performance,and other related co-benefits when planning for the future *** global GbGI heat mitigation inventory can assist policymakers and urban planners in prioritizing effective interventions to reduce the risk of urban overheating,fi

关键词： estuary walls extreme

Rift-associated ultramafic lamprophyre(damtjernite) from the middle part of the Lower Cretaceous(125 Ma) succession of Kutch,northwestern India: Tectonomagmatic implications

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Geoscience Frontiers 2018年第6期9卷 1883-1902页

作者： Rohit PANDey N.V.Chalapathi Rao prashant Dhote Dinesh PANDit A.K.Choudhary Samarendra Sahoo b.Lehmann Electron Probe Micro Analyzer Laboratory Department of Geology Centre of Advanced Study Banaras Hindu University bhumi Geoservices 1 & 2 Maa Bamleshwari Nagar Godhani Railway Institute Instrumentation Centre Indian Institute of Technology Mineral Resources Technical University of Clausthal

Mineralogical,geochemical and isotopic(Sr and Nd) studies on the recently reported ca. 124 Ma'anorogenic lamproite' dyke from the Palanpur area, Kutch seismogenic rift zone, northwestern India, are presented. We propose a new classification for the dyke as a damtjernite(ultramafic lamprophyre; UML)based on its porphyritic-panidiomorphic texture, abundance of phlogopite, presence of nepheline in the groundmass, and the composition of liquidus phases such as olivine, phlogopite, magnetite, and clinopyroxene(diopside). The Palanpur UML is primitive(Mg# =74-77),silica-undersaturated(SiO_2bulk-rock(^(87)Sr/^(86)Sr)_i(0.70460-0.70461) and ε_(N)d(t)(+2.56 to-0.69) of the Palanpur UML signify derivation from a slightly depleted mantle source similar to that of asthenospheric magmas such as OIb. This is further attested to by the high incompatible trace element ratios(viz., La/ba, Nb/U, Nb/La and Ta/Yb) that are typical of plume-type magmas. However, the Neoproterozoic T_(DM) depleted mantle Nd model ages( ～655-919 Ma) also necessitate some involvement of a lithospheric mantle component in its genesis. High bulk-rock Fe_2 O_3~t and TiO_2 contents require the involvement of a fertile peridotitic mantle source, whereas high La/Yb(60-80) implies a control by residual garnet. Higher Rb/Sr and lower ba/Rb suggest phlogopite as a residual phase and high Nb and lower La/Sm favour carbonatite, rather than silicate melt as metasomatising agent. Low degrees of partial melting of a primitive garnet lherzolite mantle can account for the observed REE patterns in the Palanpur UML. The Palanpur UML shares a temporal similarity to the Kerguelen plume-derived Rajmahal basalts and associated alkaline rocks from the eastern India. The tectonomagmatic

关键词： Tectonomagmatism Cretaceous Ultramafic lamprophyre Rift Kutch India

A convenient one-pot three component synthesis of 3-aminoalkylated indoles catalyzed by 3-chlorophenylboronic acid

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Chinese Chemical Letters 2013年第5期24卷 422-424页

作者： Santosh V.Goswami prashant.b.Thorat Vijay N.Kadam Sachin A.Khiste Sudhakar R.bhusare Department of Chemistry Dnyanopasak College

An efficient protocol was developed for the synthesis of 3-aminoalkylated indoles using 3- chlorophenylboronic acid as a catalyst under ambient temperature *** three-component reaction of indoles,aromatic aldehydes and N-methyl aniline offered corresponding 3-aminoalkylated indoles in excellent *** protocol presents some remarkable features such as mild reaction conditions,simple workup procedure and excellent yields.

关键词： 3-Aminoalkylaed indoles 3-Chlorophenylboronic acid Aromatic aldehyde N-Methylaniline Indoles

Distereoselective one-pot synthesis of pyrimidopyrimidines using sulfated tin oxide as a reusable catalyst:An extension of biginelli-type reaction

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Chinese Chemical Letters 2013年第12期24卷 1070-1074页

作者： Rupali L.Magar prashant b.Thorat Pratima b.Thorat Vinod V.Thorat bhagawan R.Patil Rajendra P.Pawar Department of Chemistry Deogiri College Department of Chemistry Dnyanopasak College Department of Chemistry Sharda Mahavidyalaya

The biginelli-type compounds 4,5,8a-triarylhexahydropyrimido[4,5-d]pyrimidine-2,7（1H,3H）-diones were synthesized by a one-pot three-component reaction using sulfated tin oxide as a reusable catalyst. This method has the advantages of high yields, short reaction time, simple starting materials and reusability of catalyst for several times.

关键词： biginelli-type reaction Multicomponent reactions Pyrimido[4 5-d]pyrimidine Sulfated tin oxide Reusable catalyst

Euphorbia tirucalli L.:Review on morphology,medicinal uses,phytochemistry and pharmacological activities

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Asian Pacific Journal of Tropical biomedicine 2017年第7期7卷 603-613页

作者： prashant Y. Mali Shital S. Panchal Department of Pharmacology Institute of Pharmacy Nirma University Ahmedabad Gujarat India

The intention of current review is to make available up-to-date information on morphology, ecological biodiversity, medicinal uses, phytochemistry and pharmacolog-ical activities on different parts of Euphorbia tirucalli (E. tirucalli). This plant has a number of medicinal uses. Latex of E. tirucalli is vesicant and rubefacient which is used for rheumatism, warts, cough, asthma, ear-ache, tooth-ache and neuralgia. It acts as a purgative in small doses while in big doses it is bitter irritant and emetic. Milky juice is alexiteric, carminative and purgative. It is useful in whooping cough, gonorrhea, asthma, leprosy, dropsy, dyspepsia, enlargement of spleen, colic, jaundice and stone in bladder. The fresh milky juice is good alternative in syphilis and a good application in neuralgia. A decoction of branches is used in gastralgia and colic. bark is used in treatment of fractures. Poultices prepared from the stem are useful to repair the broken bones. boiled root liquid acts as an emetic in cases of snake-bite and for infertility in women. The wood is used for rafters, toys and veneering purposes. It is also useful against leprosy and foot paralysis subsequent to childbirth. E. tirucalli is reported to have euphol, β-sitosterol, euphorbol hexacosonate, cycloeuphordenol, cyclotirucanenol, tirucalicine, tri-methyl ellagic acid, gallic acids, terpenic alcohol, isoeuphorol, taraxasterol, tirucallol, euphor-one, euphorcinol, euphorbins, 12-deoxy-4β-hydroxyphorbol-13-phenyl acetate-20-acetate, 12, 20-dideoxyphorbol-13-isobutyrate, glut-5-en-3-β-ol, 3,3′-di-O-methylellagic acid, euphorbin-A (polyphenol), tirucallin-A (7) (tannin), tirucallin-b (11), euphorbin-F (14) (dimers), cycloartenol, 24-methylenecycloartenol, ingenol triacetate, 12-deoxy-4β-hydroxyphorbol-13-phenyl acetate-20-acetate, taraxerone, euphorginol, taraxerol, cam-pesterol, stigmasterol, palmitic acid, linoleic acid,β-amyrin, etc. active phytoconstituents. E. tirucalli have possessed activity in human-lymphocy

关键词： Euphorbia tirucalli Morphology Ecological biodiversity Medicinal uses Phytochemistry Anticancer

Spectroscopic analysis on the binding interaction of biologically active pyrimidine derivative with bovine serum albumin

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Journal of Pharmaceutical Analysis 2016年第1期6卷 56-63页

作者： Vishwas D. Suryawansht Laxman S. Walekar Anil H. Gore prashant V. Anbhule Govind b. Kolekar Fluorescence Spectroscopy Research Laboratory Department of Chemistry Shivaji University Kolhapur 416 004 Maharashtra India

A biologically active antibacterial reagent, 2-amino-6-hydroxy-4-（4-N, N-dimethylaminophenyl）-pyr- imidine-5-carbonitrile （AHDMAPPC）, was synthesized. It was employed to investigate the binding in- teraction with the bovine serum albumin （bSA） in detail using different spectroscopic methods. It ex- hibited antibacterial activity against Escherichia cali and Staphylococcus aureus which are common food poisoning bacteria. The experimental results showed that the fluorescence quenching of model carrier protein bSA by AHDMAPPC was due to static quenching. The site binding constants and number of binding sites （n ≈ 1） were determined at three different temperatures based on fluorescence quenching results. The thermodynamic parameters, enthalpy change （AH）, free energy （AG） and entropy change （AS） for the reaction were calculated to be 15.15 kJ/mol, -36.11 kJ/mol and 51.26J/mol K according to van＇t Hoff equation, respectively. The results indicated that the reaction was an endothermic and spontaneous process, and hydrophobic interactions played a major role in the binding between drug and bSA. The distance between donor and acceptor is 2.79 nm according to Forster＇s theory. The alterations of the bSA secondary structure in the presence of AHDMAPPC were confirmed by UV-visible, synchronous fluorescence, circular dichroism （CD） and three-dimensional fluorescence spectra. All these results in- dicated that AHDMAPPC can bind to bSA and be effectively transported and eliminated in the body. It can be a useful guideline for further drug design.

关键词： bovine serum albumin Fluorescence spectroscopy Pyrimidine derivative binding interaction Fluorescence resonance energy transfer(FRET)

bayesian optimization with active learning of design constraints using an entropy-based approach

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npj Computational Materials 2023年第1期9卷 1866-1879页

作者： Danial Khatamsaz brent Vela prashant Singh Duane D.Johnson Douglas Allaire Raymundo Arróyave J.Mike Walker’66 Department of Mechanical Engineering Texas A&M UniversityCollege StationTX 77843USA Department of Materials Science and Engineering Texas A&M UniversityCollege StationTX 77843USA Ames Laboratory U.S.Department of EnergyIowa State UniversityAmesIA 50011USA Department of Materials Science&Engineering Iowa State UniversityAmesIA 50011USA Department of Industrial and Systems Engineering Texas A&M UniversityCollege StationTX 77843USA

The design of alloys for use in gas turbine engine blades is a complex task that involves balancing multiple objectives and *** alloys must be ductile at room temperature and retain their yield strength at high temperatures,as well as possess low density,high thermal conductivity,narrow solidification range,high solidus temperature,and a small linear thermal expansion *** Integrated Computational Materials Engineering(ICME)methods are not sufficient for exploring combinatorially-vast alloy design spaces,optimizing for multiple objectives,nor ensuring that multiple constraints are *** this work,we propose an approach for solving a constrained multi-objective materials design problem over a large composition space,specifically focusing on the Mo-Nb-Ti-V-W system as a representative Multi-Principal Element Alloy(MPEA)for potential use in next-generation gas turbine *** approach is able to learn and adapt to unknown constraints in the design space,making decisions about the best course of action at each stage of the *** a result,we identify 21 Pareto-optimal alloys that satisfy all *** proposed framework is significantly more efficient and faster than a brute force approach.

关键词： alloys solidification alloy