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Power Quality Improvement of Distribution network Using BESS and Capacitor Bank

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Journal of Modern Power Systems and Clean Energy 2021年第3期9卷 625-632页

作者： F.R.Islam A.Lallu k.A.Mamun k.Prakash n.k.Roy University of Sunshine Coast Sip-py DownsAustralia University of South Pacific SuvaFiji kJiulna University of Engineering and Technology KhulnaBangladesh

The power demand around the world is increasing *** aging distribution network architectures are used by the existing utility companies to deliver power to the consumers,which significantly affects the reliability,stability and quality of the delivered *** techniques such as compensation devices have been used by power system engineers and researchers to maintain the quality of power transmitted to end *** this paper,wattage and volt-amp reactive(VAR)planning scheme has been proposed by using the combination of battery energy storage systems(BESS)and compensators to deal with the vulnerability of networks to voltage drop and system *** cost-effective combination of BESS and shunt capacitor bank will then be analyzed to indicate the benefit of the proposed scheme.

关键词： Battery energy storage system(BESS) shunt capacitor bank reliability stability quality volt-amp reactive(VAR)planning distribution network

THE MODIFIED MOMEnT PROBLEM In THE PRESEnCE OF nOISE

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Analysis in Theory and Applications 1993年第2期9卷 50-70页

作者： U.amato M.F.Carfora Istituto per Applicazioni della Matematica CnR. Italy Istituto per Applicazioni della Matematica CnR Italy and Istituto per le Metodologie Avanzate di Analisi Ambientale CNR Italy

The modified moment problem is little studied in the literature with respect to the classical moment prob- lem due to the lacking of experiments measuring modified momenls. The modified moment problem is ana- lyaed in this paper, when noise affects the modified moments themselves. A numerical method for solving the problem, based on regularization. is given. together with a full theoretical analysis, convergence results and an optimized algorithm. The modified moment problem rereals strongly superior to the classical moment problem in terms of the amplification of the error, conditioning of the matrices involved and ease of computation.

关键词： THE MODIFIED MOMEnT PROBLEM In THE PRESEnCE OF nOISE GCV 一几 As

Advancement in utilization of magnetic resonance imaging and biomarkers in the understanding of schizophrenia

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World Journal of Clinical Cases 2025年第1期13卷 11-15页

作者： Aidan k Tirpack Danyaal G Buttar Mandeep kaur Department of Psychiatry Campbell University School of Osteopathic MedicineBuies CreekNC 27506United States Department of Psychiatry and Behavioral Health Mercyhealth Hospital and Trauma CenterJanesvilleWI 53548United States

Historically,psychiatric diagnoses have been made based on patient’s reported symptoms applying the criteria from diagnostic and statistical manual of mental *** utilization of neuroimaging or biomarkers to make the diagnosis and manage psychiatric disorders remains a distant *** have been several studies that examine brain imaging in psychiatric disorders,but more work is needed to elucidate the complexities of the human *** this editorial,we examine two articles by Xu et al and Stoyanov et al,that show developments in the direction of using neuroimaging to examine the brains of people with schizo-phrenia and *** et al used magnetic resonance imaging to examine the brain structure of patients with schizophrenia,in addition to examining neurotransmitter levels as *** et al used functional magnetic resonance imaging to look at modulation of different neural circuits by diagnostic-specific scales in patients with schizophrenia and *** two studies provide crucial evidence in advancing our understanding of the brain in prevalent psychiatric disorders.

关键词： Schizophrenia Magnetic resonance imaging Biomarkers neurotransmitters Psychiatric disorders

Metallurgical challenges in microelectronic 3D IC packaging technology for future consumer electronic products

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Science China(Technological Sciences) 2013年第7期56卷 1740-1748页

作者： k. n. TU TIAn Tian Department of Mechanical and Biomedical Engineering City University of Hong Kong Department of Materials Science and Engineering University of California at Los Angeles

Metallurgical challenges in controlling the microstructural stability of Cu and solder microbumps in 3D IC packaging technol-ogy are discussed. Using uni-directional oriented nanotwinned Cu, the controlled growth of oriented Cu6Sn5 on the nanotwinned Cu and its transformation to Cu3Sn without kirkendall voids have been achieved. In order to join a stack of Si chips into a 3D device, multiple reflows of solder microbumps may be required; we consider localized heating to do so by the use of self-sustained explosive reaction in multi-layered Al/ni thin films of nano thickness. It avoids re-melting of those solder joints which have been formed already in the 3D stacking structure.

关键词： 3D IC packaging microbump localized heating

Effect of rangeland rehabilitation on the herbaceous species composition and diversity in Suswa catchment,narok County,kenya

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Ecological Processes 2017年第1期6卷 427-435页

作者： n.J.Ombega S.M.Mureithi O.k.koech A.n.karuma C.k.k.Gachene Department of Land Resource Management and Agricultural Technology(LARMAT) University of NairobiP.O Box 29053Nairobi 00625Kenya Sustainable Land Management(SLM)Agro-Pastoral Project kenya NairobiKenya

Introduction:Land degradation is a serious environmental problem of our *** kenya,it is estimated that 30%of the total land mass is severely *** catchment within narok County is a good example with gullies of over 25 m deep and 30 m *** response to the increasing land degradation in the area,the Sustainable Land Management(SLM)project rehabilitated the catchment through establishment of soil and water conservation structures such as cutoff drains,semicircular bunds,and water retention *** the various rehabilitation approaches carried out,little research has been done to ascertain their effect on successful vegetation *** coupled with the fact that many restoration approaches have failed in East Africa and kenya in particular gave drive to the *** objective of this study was to determine the effects of rangeland rehabilitation on herbaceous species composition and diversity in a severely degraded ***:To assess the diversity of aboveground herbaceous layer in the rehabilitated and degraded areas along a slope(upper,middle,and lower),line transect and quadrat count methods were *** each slope position,three 100-m-long transects were placed across the hill parallel to one another 30 m apart using a *** species hit,the closest species to the hit,and hits on bare ground were *** the same transects,1-m2 quadrats were placed 25 m apart and aboveground biomass determined by the use of the destructive *** the determination of species richness,diversity,relative abundance,percentage cover,and species composition,the Shannon-Wiener diversity index was *** collected on vegetation attributes was subjected to analysis of variance(AnOVA)using Genstat and Tukey’s HSD post hoc used in means separation where F values were ***:The results showed that percent cover(74.67%),aboveground biomass(1459 kg/ha),relative abundance,richness,composition,and diversity of perennial grass

关键词： Rehabilitation Land degradation Slope,Herbaceous layer Biodiversity

Dispersion effect of nano-structure pyrolytic carbon on mechanical,electrical,and microstructural characteristics of cement mortar composite

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International Journal of Smart and nano Materials 2024年第3期15卷 534-578页

作者： n.k.karthikeyan S.Elavenil School of Civil Engineering Vellore Institute of TechnologyChennaiIndia

In material science,converting waste into nanomaterials by green technologies highlights the interest in producing sus-tainable carbon nanomaterial(SCn).This study first-ever uti-lized tyre-char as a nano-Structure Pyrolytic Carbon(nSPC)to develop electrically conductive *** other car-bon nanomaterials,the efficiency of nSPC particle as an SCn in developing electrically conductive composites was investi-gated in terms of dispersion,mechanical,water absorption,electrical resistivity,and *** results of sedi-mentation and zeta potential(-19 mV)showed the excellent dispersion of nSPC particle in water with the combined effect of superplasticizer and *** compressive(40.37%)and flexural strength(10.76%)than that of plain cement mortar composite(CMC)is achieved with 2 wt.%and 1.5 wt.%of nSPC particle,*** water absorption rate and volume of permeable voids were reduced,exhibiting less *** percolation zone of AC and DC resis-tivity of nSPC composite ranges between 1 and 2 wt.%,and the established percolation threshold is at 2 wt.%.XRD analysis showed C-S-H formation consistently increased with curing age,and HR-SEM with EDAX analysis exhibits the dense micro-structure and well-distributed nSPC particle at the *** experimental outcomes significantly enhanced the relia-bility and provided a framework for tailoring nSPC particle as SCn for developing electrically conductive composite.

关键词： Sustainable nanomaterial dispersion mechanical properties electrical resistivity microstructure analysis

Influence of Accompanying Anions on Potassium Retention and Leaching in Potato Growing Alluvial Soils

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Pedosphere 2013年第4期23卷 464-471页

作者： V.SHARMA k.n.SHARMA Department of Soils Punjab Agricultural University

A column study was carried out to assess the influence of accompanying anions on potassium （k） leaching at potato growing sites with different soil textures （sandy loam and clay loam） in northwestern India. Potassium was applied in the top 15 cm layer of soil column at 30 and 60 mg k kg-1 through different sources having different accompanying anions （CI-, SO^-, nO3 and H2PO4-）. Maximum k was retained in the top 0-15 cm layer with a sharp decrease in k content occurring in 15 30 cm layer of the soil column. The trend was similar for both levels of applied k as well as frequency of leaching and soil type. The decrease of k content in soil column after four leaching events was maximum in case of khanaura sandy loam, while only minor decrease was observed in Hundowal clay loam when k was applied at 60 mg k kg-1, indicating higher potential of clay rich soil to adsorb k. In general, the k leaching in presence of the accompanying anions followed the order of SO4^2-≤ H2PO42- 〈 nO3 = Cl-. Highest 1 mol·L^-1 CH3COOnH4-extractable k was retained when k was applied along with SO4^2- and H2PO4 anions, and the least was retained when accompanying anion was Cl-. The influence of anions was more pronounced in the light textured soil and at high amounts of k application. Higher levels of k application resulted in higher losses of k, especially in sandy loam soil as observed from the leachate concentration. Among the different k sources, the maximum amount of k leaching was noticed in the soil column amended with kC1. After four leachings, the maximum amount of k leached out was 6.40 mg L-1 in Hundowal clay loam and 9.29 mg L-1 in khanaura sandy loam at 60 mg k kg-1 of soil application through kC1. These concentrations were lower than the recommended guideline of the World Health Organisation （12.00 mg L-1）.

关键词： column study leaching events potassium application potassium sources soil texture

EXISTEnCE AnD UnIQUEnESS RESULTS FOR BOUnDARY VALUE PROBLEMS OF HIGHER ORDER FRACTIOnAL InTEGRO-DIFFEREnTIAL EQUATIOnS InVOLVInG GROnWALL'S InEQUALITY In BAnACH SPACES

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Acta Mathematica Scientia 2013年第3期33卷 758-772页

作者： Dimplekumar n. CHALISHAJAR k. kARTHIkEYAn Department of Mathematics and Computer Science Virginia Military Institute (VMI) 417 Mallory HallLexington VA 24450 USA Department of Mathematics KSR College of TechnologyTiruchengode-637 215 Tamilnadu India

We study boundary value problems for fractional integro-differential equations involving Caputo derivative of order α∈ （n-1, n） in Banach spaces. Existence and uniqueness results of solutions are established by virtue of the Holder＇s inequality, a suitable singular Cronwall＇s inequality and fixed point theorem via a priori estimate method. At last, examples are given to illustrate the results.

关键词： Boundary value problems fractional order integro-differential equations bound-ary value problems existence and uniqueness singular gronwall inequality fixed point theorem

Z-SCAn TECHnIQUE FOR MEASUREMEnT OF TOTAL CHOLESTEROL AnD TRIGLYCERIDES In BLOOD

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Journal of Innovative Optical Health Sciences 2009年第3期2卷 295-301页

作者： A.n.DHInAA P.k.PALAnISAMY Department of Physics Anna University Chennai 600025India

The measurement of cholesterol and triglycerides in blood by Z-scan technique is *** nonlinear refractive index of cholesterol and triglycerides was found to vary linearly with *** by calculating the nonlinear refractive index it is possible to measure their concentration in the *** measured values are found in equivalence with conventional colorimetric method.

关键词： Z-scan technique nonlinear refractive index cholesterol triglycerides