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Optimal Location and Sizing of Conglomerate DG-FACTS using an Artificial Neural Network and Heuristic Probability Distribution Methodology for Modern Power System Operations

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Protection and Control of Modern Power Systems 2022年第1期7卷 124-148页

作者： Anwar Shahzad Siddiqui prashant Department of Electrical Engineering Faculty of Engineering&TechnologyJamia Millia IslamiaJamia NagarOkhlaNew Delhi 110025India

In existing power system networks,the positioning and sizing of multi-DG is critical at the optimum locations for effective energy *** optimal power flow is assessed using the NR method(without DG)in which performance parameters such as real power loss,accuracy,selectivity and MSE are obtained,but in an undesirable *** meet load demand;multi-DGs are placed and their optimal locations are assessed by the proposed heuristic probability distribution methodology and an ANN because existing techniques provides poor performance parameters for selecting the location and sizing of *** optimal positions of multi-DGs are estimated in terms of performance parameters including real power loss of transmission network,accuracy,selectivity and MSE,while the performance parameters obtained with the ANN are better than the heuristic ***,the sizing of multi-DGs is evaluated in relation to active and reactive *** is found that that sizes of multi-DGs are smaller with ANN than with heuristic *** is preferable to connect the buses having lowest real power losses with the smallest *** performance analysis is tested in the standard IEEE 9-bus and IEEE 57-bus systems on *** improve the distortion level in real and reactive power,multi-FACTS namely TCSC,TSC and STATCOM are *** switching of TCSC and TSC is done by SPWM while STATCOM switching is controlled with *** locations of multi-FACTS devices are chosen for buses having larger distortion and the sizing of multi-FACTS devices is also optimally *** application of multi-FACTS devices helps to improve power quality and fulfill load demand with minimal size in order to make the system economical.

关键词： DG Location Sizing FACTS ANN ANFIS

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Modeling of finite-size droplets and particles in multiphase flows

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Chinese Journal of Aeronautics 2015年第4期28卷 974-982页

作者： prashant Khare Shanwu Wang Vigor Yang School of Aerospace Engineering Georgia Institute of Technology

The conventional point-particle approach for treating the dispersed phase in a continuous flowfield is extended by taking into account the effect of finite particle size, using a Gaussian interpolation from Lagrangian points to the Eulerian *** inter-phase exchange terms in the conservation equations are distributed over the volume encompassing the particle size, as opposed to the Dirac delta function generally used in the point-particle *** proposed approach is benchmarked against three different flow configurations in a numerical framework based on large eddy simulation（LES） turbulence ***, the flow over a circular cylinder is simulated for a Reynolds number of 3900 at 1 atm *** show good agreement with experimental data for the mean streamwise velocity and the vortex shedding frequency in the wake *** calculated flowfield exhibits correct physics, which the conventional point-particle approach fails to *** second case deals with diesel jet injection in quiescent environment over a pressure range of 1.1–5.0 *** calculated jet penetration depth closely matches *** decreases with increasing chamber pressure, due to enhanced drag force in a denser fluid ***, water and acetone jet injection normal to air crossflow is studied at1 *** calculated jet penetration and Sauter mean diameter of liquid droplets compare very well with measurements.

关键词： Droplets Finite-size effects Large eddy simulation Multiphase flow Particle-laden flow

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Promoting human embryonic stem cell renewal or differentiation by modulating Wnt signal and culture conditions

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Cell Research 2007年第1期17卷 62-72页

作者： Betty Ying Zhou prashant Mali USA. Whitehead institute for Biomedical Research CambridgeMA 02142USAThe Institute for Cell EngineeringDepartment of Gynecology & Obstetricsthe Johns Hopkins University School of MedicineBaltimoreMD Program of Biomedical Engineeringthe Johns Hopkins UniversiOSchool of MedicineBaltimoreMD 21205USA

We previously showed that Wnt3a could stimulate human embryonic stem (hES) cell proliferation and affect cell *** the absence of feeder cell-derived factors,hES cells cultured under a feeder-free condition survivedand proliferated *** recombinant Wnt3a in the absence of feeder cell derived-factors stimulated hES cellproliferation but also *** the present study,we further extended our analysis to other Wnt ligands such asWntl and *** Wntl displayed a similar effect on hES cells as Wnt3a,Wnt5a had little effect in this ***3a and Wntl enhanced proliferation of undifferentiated hES cells when feeder-derived self-renewal factors andbFGF are also *** explore the possibility to promote the proliferation of undifferentiated hES cells by activatingthe Wnt signaling,we overexpressed Wnt3a or Wntl gene in immortalized human adult fibroblast (HAFi) cells that aresuperior in supporting long-term growth of undifferentiated hES cells than primary mouse embryonic *** with or without a Wnt transgene can be propagated ***-expression of the Wnt3a gene significantlyenhanced the ability of HAFi feeder cells to support the undifferentiated growth of 3 different hES cell lines we ***-expression of three commonly-used drug selection genes in Wnt3a-overpressing HAFi cells further enabled us toselect rare hES clones after stable transfection or *** immortalized engineered feeder cells (W3R) thatco-express growth-promoting genes such as Wnt3a and three drug selection genes should empower us to efficiently makegenetic modified hES cell lines for basic and translational research.

关键词： WNT human embryonic stem cells stem cell renewal stem cell differentiation transgene

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Squamous Papilloma:Case Report and Review of Literature

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International Journal of Oral Science 2010年第4期2卷 222-225页

作者： prashant P.Jaju prashant V.Suvarna Rajiv S.Desai Department of Oral Medicine Diagnosis and RadiologyMGV's KBH Dental College & Hospital Department of Oral Medicine and Radiology Dr. D. Y. Patil Dental College and Hospital Department of Oral Maxillofacial Pathology Dr. D. Y. Patil Dental College and Hospital

Squamous papillomas are common lesions of the oral mucosa with a predilection for the mucosa of the hard and soft palate. As an oral lesion,it raises concern because of its clinical appearance,which may mimic exophytic carcinoma,verrucous carcinoma or condyloma acuminatum. Its pathogenesis is related to human papilloma virus but there is controversy regarding its viral origin. We present a case of squamous papilloma presenting as oral lesion along with a review of the literature.

关键词： squamous papilloma human papilloma virus HIV condyloma acuminatum koilocytic cell interferon

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Bi3+assisted luminescence in SrMoO_(4):Sm^(3+) red phosphors

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Journal of Rare Earths 2021年第11期39卷 1336-1343,I0002页

作者： Vaibhav Chauhan prashant Dixit Praveen C.Pandey Department of Physics Indian Institute of Technology(Banaras Hindu University)Varanasi221005UPIndia

In this paper,we report synthesis of pure SrMoO_(4),Sm^(3+)(1 at%-5 at%)doped SrMoO_(4)and Bi^(3+)(1 at%-3 at%)co-doped in 4 at%Sm^(3+)doped SrMoO_(4)(SrMoO_(4):4 Sm^(3+))phosphors by solution combustion *** X-ray diffraction(XRD)analysis reveals the tetragonal phase of all samples,also Bi^(3+)co-doping supports crystallite size growth and reduces lattice *** analysis of Sm^(3+)doped SrMoO_(4)ascertains a decrease in band gap and Bi^(3+)co-doping confirms the emergence of an absorbance peak at around 308 nm attributed to Bi^(3+)energy ***(PL)analysis ascertains an increase in emission peaks for Sm^(3+)doped SrMoO_(4)up to 4%concentration,which are attributed to an electron transition from 4 G5/2 to 6 HJ(J=5/2,7/2,9/2,and 11/2)energy levels of Sm^(3+)*** have explained the effects of Bi^(3+)co-doping on the luminescence of Sm^(3+)doped SrMoO_(4).The reduced microstrain and increased crystallinity of the phosphors as a result of Bi^(3+)co-doping and their correlation with the luminescence of Sm^(3+)ions are discussed.

关键词： SrMoO_(4):Sm^(3+) Bismuth ion Photoluminescence Absorption study Crystallinity Microstrain

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Application of modified atmosphere packaging using silicone membrane system for shelf life extension of pomegranate (Punica granatum L.) and its effect on physico-chemical properties

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Food Quality and Safety 2019年第3期3卷 145-155页

作者： Shubhangi Srivastava prashant Said Agricultural and Food Engineering Department Indian Institute of TechnologyKharagpurWest BengalIndia College of Agricultural Engineering and Post-Harvest Technology RanipoolSikkimIndia

Objectives:The study was conducted to prolong the shelf life of freshly harvested pomegranate fruits and to find out its physiochemical properties during *** and Methods:Pomegranate fruits of variety‘Bhagawa’were stored in 200,300 gauge high-density polyethylene(HDPE)package,and silicone membrane modified atmospheric storage system at ambient conditions and 10℃.Gas composition inside the package,texture,color,and overall quality parameters were evaluated at these two storage *** physico-chemical properties such as total soluble solids,titratable acidity,ascorbic acid content,total,reducing,and non-reducing sugars,and physiological loss in weight(PLW)were also ***:In ambient storage,the shelf life of pomegranate fruit was 10 days,whereas in modified atmosphere packaging(200 gauge HDPE,300 gauge HDPE,and silicone membrane system),the shelf life of pomegranate fruits was extended up to 60,60,25 days at ambient and 96,96,65 days at 10℃temperature,***:Among the 200,300 gauge HDPE package,and silicone membrane system treatments T1,T5,and T8,respectively,were found better with respect to all the sensory and quality parameters studied.

关键词： silicone membrane shelf life pomegranate temperature ripening

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Bianchi type V universe with bulk viscous matter and time varying gravitational and cosmological constants

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Research in Astronomy and Astrophysics 2012年第11期12卷 1457-1466页

作者： prashant Singh Baghel Jagdish Prasad Singh Department of Mathematical Sciences A. P. S. University

We consider spatially homogeneous and anisotropic Bianchi type V space- time with a bulk viscous fluid source, and time varying gravitational constant G and cosmological term A. The coefficient of bulk viscosity ζ is assumed to be a simple linear function of the Hubble parameter H （i.e. ζ = ζ0 ＋ ζ1H, where ζ0 and ζ1 are constants）. The Einstein field equations are solved explicitly by using a law of varia- tion for the Hubble parameter, which yields a constant value of the deceleration pa- rameter. Physical and kinematical parameters of the models are discussed. The models are found to be compatible with the results of astronomical observations.

关键词： bulk viscosity -- Bianchi V -- relativity: equation of state -- cosmology:cosmological parameters -- miscellaneous

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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

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Delayed information induces oscillations in a dynamical model for infectious disease

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International Journal of Biomathematics 2019年第2期12卷 163-196页

作者： Anuj Kumar prashant K Srivastava Anuradha yadav School of Mathematics Thapar Institute of Engineering and Technology Patiala 147004 India Department of Mathematics Indian Institute of Technology Patna Patna 801103India

During disease outbreak,it has been observed that information about the disease prevalence induces the individuafs behavioral *** information is usually assumed to be generated by the density of infective individuals and active mass *** delay in reporting of these infective individuals may have its impact on generated ***,to study the impact of delay on information generation,and therefore on the disease dynamics,a delay differential equation model is proposed and *** dynamics of information with delay effect is also modeled by a separate rate *** analysis is performed and a unique infected equilibrium is obtained when the basic reproduction number(R0)is greater than one,whereas the disease free equilibrium always *** R0<1,the disease free equilibrium is found to be locally stable independent of delay *** unique infected equilibrium is found to be locally stable till delay reaches a threshold *** global stability of the unique infected equilibrium is also established under some parametric conditions by constructing a suitable Lyapunov *** occurrence of Hopf bifurcation is observed when the delay in information crosses the threshold ***,the direction and stability of bifurcating periodic solutions is ***,we observed the occurrence of Hopf-Hopf bifurcation at two different *** first delay threshold,the endemic equilibrium loses its st ability and produces periodic oscillations via Hopf *** further regains its stability at second delay threshold via another Hopf ***,the delay effect on information shows possibility of stability *** experiments are carried out to support the obtained analytical *** study infers that the disease will show persistent oscillations if there is a significant time lag in reporting of infective after the disease ***,the delay in dissemination of information shows rich and

关键词： Information behavioral response delay Hopf bifurcation Hopf-Hopf bifurcation

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Advanced microemulsion synthesis and characterization of wollastonite （CaSiO3）fpolystyrene one-dimensional nanorods with core-shell structures

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Particuology 2017年第1期15卷 118-128页

作者： Aniruddha Chatterjee prashant Khobragade, Satyendra Mishra Jitendra Naik University Institute of Chemical Technology North Maharashtra University Jalgaon 425001 Maharashtra India

In this work, one-dimensional core-shell nanorods （CSNRs; 185-250nm wide and 1-1.5μm long） consisting of triethoxyvinylsilane-modified wollastonite （CaSiO3） nanorods （MWNRs） as a core and polystyrene as a shell with uniform size were successfully synthesized using an advanced microemulsion technique. The effect of varying the surfactant cetyltrimethylammonium bromide （producing CSNRSCTAB） or sodium dodecyl sulphate （producing CSNRSSDS） upon the size and morphology of the CSNRs was investigated by field-emission scanning electron microscopy （FE-SEM）. X-ray diffractometry and Fourier transform infrared spectrophotometer revealed the existence of a strong interaction between the MWNRs and polystyrene, which implies that the polymer chains were successfully grafted onto the surface of the MWNRs. The CSNRs were blended with polypropylene by melt processing, and the effect of the CSNRs upon the morphological properties of the polypropylene matrix was investigated by FE-SEM and atomic force microscopy. It was observed that the polystyrene chains that grafted onto the CaSiO3 nanorods interfered with the aggregation of CaSiO3 nanorods in the polypropylene matrix and thus improved the compatibility of the CaSiO3 nanorods with the polypropylene matrix. Furthermore, the compatibility of CaSiO3 nanorods with polypropylene of CSNRsDs/polypropylene was superior to that of CSNRCTAB/polypropylene.

关键词： Core-shell structures Atomized microemulsion One-dimensional nanorods

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