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Protection and Control of Modern Power Systems 2023年第1期8卷 245-264页

作者： Sheetal Singh Sanju saini SKGupta Rajeev Kumar Electrical Engineering Department Deenbandhu Chhotu Ram University of Science and Technology MurthalMurthalIndia Electrical and Electronics Engineering Department KIET Group of InstitutionsGhaziabadIndia

This paper demonstrates the controlling abilities of a large PV-farm as a Solar-PV inverter for mitigating the chaotic electrical,electromechanical,and torsional oscillations including Subsynchronous resonance in a turbogenerator-based power *** oscillations include deviations in the machine speed,rotor angle,voltage fluctuations(lead-ing to voltage collapse),and torsional *** the night with no solar power generation,the PV-plant switches to PV-STATCOM mode and works as a Solar-PV inverter at its full capacity to attenuate the *** full sun in the daytime,on any fault detection,the PV-plant responds instantly and stops generating power to work as a Solar-PV *** PV-farm operates in the same mode until the oscillations are fully *** paper mani-fests the control of the DC-link capacitor voltage of the Solar-PV inverter with a bacterial foraging optimization-based intelligent maximum power point tracking controller for the optimal control of active and reactive ***’s multi-machine model aggregated with PV-plant is modeled in the Matlab/Simulink environment to examine the rotor swing deviations with associated shaft *** results for different test cases of interest demonstrate the posi-tive outcomes of deploying large PV-farms as a smart PV-STATCOM for controlling power system oscillations.

关键词： PV-STATCOM Power oscillations Grid-connected system BFO algorithm Rotor dynamics

Monitoring of injected CO_(2) at two commercial geologic storage sites with significant pressure depletion and/or re-pressurization histories: A case study

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Petroleum 2017年第1期3卷 138-143页

作者： Dayanand saini Department of Physics&Engineering California State UniversityBakersfieldCA 93311USA

Majority of geologic CO_(2) storage sites for currently operated large-scale integrated carbon capture and storage projects(LSIPs)in operation around the world are depleted oil fields that have been undergone significant depletion and re-pressurization prior to injection of captured CO_(2).A better understanding of any of the implications associated with past depletion and re-pressurization histories to“out of injection zone”migration of injected CO_(2) can help in making monitoring strategies significantly more *** the geologic CO_(2) storage demonstration sites for two most active LSIPs in the US,the West Hastings and the Bell Creek Oil Fields are the main focus of present *** monitoring technologies that have been used/deployed/tested at both the normally pressured West Hastings and the subnormally pressured Bell Creek storage sites appear to adequately address any of the potential“out of zone migration”of injected CO_(2) at these *** would be interesting to see if any of the collected monitoring data at the West Hastings and the Bell Creek storage sites could also be used in future to better understand the viability of initially subnormally pressured and subsequently depleted and re-pressurized oil fields as secure geologic CO_(2) storage sites with relatively large storage CO_(2) capacities compared to the depleted and re-pressurized oil fields that were initially discovered as normally pressured.

关键词： geologic depletion depleted

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Resilience-Driven Road Network Retrofit Optimization Subject to Tropical Cyclones Induced Roadside Tree Blowdown

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International Journal of Disaster Risk Science 2021年第1期12卷 72-89页

作者： Fuyu Hu saini Yang Russell G.Thompson Theoretical Division Los Alamos National LaboratoryLos AlamosNM 87545USA Key Laboratory of Environmental Change and Natural Disaster Ministry of EducationBeijing Normal UniversityBeijing 100875China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs&Ministry of EducationBeijing Normal UniversityBeijing 100875China Faculty of Geographical Science Beijing Normal UniversityBeijing 100875China School of Engineering The University of MelbourneMelbourne 3052Australia

This article focuses on decision making for retrofit investment of road networks in order to alleviate severe consequences of roadside tree blowdown during tropical *** consequences include both the physical damage associated with roadside trees and the functional degradation associated with road networks.A trilevel,two-stage,and multiobjective stochastic mathematical model was developed to dispatch limited resources to retrofit the roadside trees of a road *** the model,a new metric was designed to evaluate the performance of a road network;resilience was considered from robustness and recovery efficiency of a road *** proposed model is at least a nondeterministic polynomialtime hardness(NP-hard)problem,which is unlikely to be solved by a polynomial time ***-optimal solutions for this problem can be obtained by a proposed trilevel *** random forest method was employed to transform the trilevel algorithm into a singlelevel algorithm in order to decrease the computation *** tree retrofit of a provincial highway network on Hainan Island,China was selected as a case area because it suffers severely from tropical cyclones every year,where there is an urgency to upgrade roadside trees against tropical *** found that roadside tree retrofit investment significantly alleviates the expected economic losses of roadside tree blowdown,at the same time that it promotes robustness and expected recovery efficiency of the road network.

关键词： Hainan Island Nondominated sorting genetic algorithm II(NSGA II) Random forest method Road network resilience Roadside tree retrofit Tropical cyclones

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四川秦巴山区降雨型滑坡灾害降雨阈值

山地学报 2024年第2期42卷 238-248页

作者：王智昊杨赛霓姚可桢佟彬唐得胜北京师范大学教育部巨灾模拟与系统性风险应对国际合作联合实验室北京师范大学国家安全与应急管理学院北京师范大学地理科学学部北京师范大学环境演变与自然灾害教育部重点实验室中国地质环境监测院四川省国土空间生态修复与地质灾害防治研究院

四川省秦巴山区因其复杂地形和频发的极端降雨，成为中国滑坡灾害高发区，降雨是其主要自然致灾因素之一。尽管现有区域滑坡预警系统提供了基本的监测，但在准确性方面仍有提升空间。本研究通过分析2000—2020年间1850起滑坡灾害及同期... 详细信息

四川省秦巴山区因其复杂地形和频发的极端降雨，成为中国滑坡灾害高发区，降雨是其主要自然致灾因素之一。尽管现有区域滑坡预警系统提供了基本的监测，但在准确性方面仍有提升空间。本研究通过分析2000—2020年间1850起滑坡灾害及同期逐时降雨数据，识别影响滑坡发生的关键降雨特征，采用混淆矩阵和技能得分等评价指标，拟合筛选确定最佳阈值曲线。研究表明：(1)拟合确定了诱发滑坡灾害的最佳降雨阈值曲线，并将其应用于2021年滑坡灾害预报，预测正确率达到87.72%。(2)通过滑坡隐患点编目数据进行滑坡危险性区划，中高及高危险性区域(4级和5级)的滑坡灾害点占比51.46%,中至高危险性区域(3级至5级)的灾害点占比91.23%,显示出阈值曲线在空间预测上的有效性。最佳降雨阈值曲线的应用显著提高了滑坡预警系统的准确性和可靠性。研究成果有助于优化现行滑坡预警系统，提高灾害管理效率，可为滑坡灾害预防和减灾工作提供科学支持。

关键词：降雨型滑坡降雨阈值气象预警秦巴山区

Alteration in the expression of microRNA-21 regulated target genes:Role in breast cancer

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BIOCELL 2022年第2期46卷 309-324页

作者： PRIYANKA THAKUR REENA V.saini ANIL K.CHHILLAR NEERAJ K.saini VIJAY KUMAR THAKUR SAMARJEET SINGH SIWAL ADESH K.saini Faculty of Sciences Shoolini UniversitySolan173229India Department of Biotechnology MMECMaharishi Markandeshwar(Deemed to be University)Ambala133207India Maharishi Markandeshwar University Solan173229India Centre of Biotechnology Maharshi Dayanand UniversityRohtak124001India School of Biotechnology Jawaharlal Nehu UniversityNew Delhi110067India Biorefining and Advanced Materials Research Center Scotland’s Rural College(SRUC)EdinburghEH93JGUK Department of Chemistry MMECMaharishi Markandeshwar(Deemed to be University)Ambala133207India

Breast cancer,also recognized as the principal cause of cancer-related deaths among women,is the second most familiar and prevalent form of *** diagnostic and prognostic biomarkers that are highly specific are urgently needed for its early ***(miRNAs),a class of non-coding RNAs,are known to control the biological processes involving transcription,post-transcriptional and covalent modifications,splicing,translation,cell differentiation,proliferation,apoptosis,cancer progression,and *** dysregulation in miRNA expression,demonstrating their oncogenic and tumor-suppressive functions,contributes to cancer ***-21(miR-21),an‘onco-miR’in breast cancer,is involved in tumor progression and metastasis by suppressing the activity of the target gene via its interaction with the 3’UTR of the target *** upregulation of miR-21 is observed in many instances of breast *** review aims to summarize the current understanding of miR-21 in the regulation of important cellular functions via regulation of its target *** discuss its biosynthesis,oncogenic function in breast cancer,and different methods used for its *** will increase the current understanding of the role of miR-21 in breast cancer tumorigenesis,which will offer a perception of using miR-21 as an early detection molecular prognostic and diagnostic biomarker and as a therapeutic target in breast cancer care.

关键词： Non-coding RNA microRNAs Breast cancer Tumor suppression Biomarker

Evaluation of antihyperglycemic activity of methanolic Tecomaria capensis Thunb.(Bignoniaceae) leaves extract in alloxan induced hyperglycemic rats

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Asian Pacific Journal of Tropical Medicine 2012年第12期5卷 945-948页

作者： Neeraj Kumar saini Singhal M Department of Pharmacology School of Pharmaceutical SciencesJaipur National University

Objective:To evaluate the antihyperglycemic activity of Tecomaria aipensis(***) Thunb. (Bignoniaceae) methanolic leaves extract(TCLE) using blood glucose level in normal fasted rats, glucose tolerance test and alloxan induced hyperglycemia ***:TCLE(100,300, 1 000 and 2 000 mg/kg body wt.) was given to rats orally to observe acute toxicity,and observed for 14 *** 200 and 400 mg/kg,and glibenclamide 0.6 mg/kg were given orally in all models. Results:Results demonstrated that the no mortality was reported even after 14 *** indicates that the methanol extract is safe up to a single dose of 2 000 mg/kg body ***(200 and 400 mg/kg p.o.) exhibited remarkable blood glucose lowering effect in blood glucose level in normal fasted rats,glucose tolerance and alloxan induced hyperglycemia *** and triglyceride also decreased in alloxan induced hyperglycemia ***:The results of this study exhibites that methanol extract of *** possesses antihypergycemic activity and it may prove to be effective for the treatment of hyperglycemia.

关键词： Antidiabatic Diabeties Alloxan Oral glucose tolerance

Finite temperature thermophysical properties of MgCu intermetallic compound from quasi-harmonic Debye model

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Journal of Magnesium and Alloys 2019年第2期7卷 335-344页

作者： Salah Daoud Nadhira Bioud P.K.saini Laboratoire Matériaux et Systèmes Electroniques UniversitéMohamed Elbachir El Ibrahimi de Bordj Bou ArreridjBordj Bou Arreridj 34000Algérie Laboratoire d’Optoélectronique et Composants UniversitéFerhat Abbas Sétif 1Sétif 19000Algérie Facultédes sciences et de la technologie UniversitéMohamed Elbachir El Ibrahimi de Bordj Bou ArreridjBordj Bou Arreridj 34000Algérie Department of Physics Government CollegeHansiHaryana 125033India

The influence of pressure and temperature on the thermodynamic properties of MgCu intermetallic compound was investigated by quasi-harmonic Debye model *** equation of state(EoS)parameters has performed using plane-wave pseudopotential(PW-PP)approach in the framework of the density functional theory(DFT)and the generalized gradient approximation(GGA)for the exchange-correlation *** results agree well with other data of the *** finite temperature thermophysical properties under pressure up to 16 GPa and high temperature up to 800 K,respectively were *** results of the thermophysical properties are also agree very well with other data of the literature,where for example at ambient temperature,the deviation between our obtained value(11.05 Cal mol^(−1)K^(−1))of C V,and the theoretical value(11.21 Cal mol^(−1)K^(−1))reported in the literature is only around 1.44%.The finite temperature thermophysical properties were found varied monotonically with either temperature or *** with other materials previously studied,similar behaviors were observed.

关键词： Thermophysical properties Quasi-harmonic Debye model MgCu intermetallic compound High-pressure

Approaches for Optimal Planning of Energy Storage Units in Distribution Network and Their Impacts on System Resiliency

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CSEE Journal of Power and Energy Systems 2020年第4期6卷 816-833页

作者： Balaji Venkateswaran V Devender K.saini Madhu Sharma Department of Electrical and Electronics Engineering University of Petroleum and Energy StudiesDehradun 248007India

In the recent decade,a significant increase in the penetration level of renewable energy sources(REss)into the distribution grid is evident due to the world’s shift towards clean energy and to increase the reliability or inboard manner resiliency of electrical distribution *** based microgrids are the most favorable option available,especially to enhance ***,the integration of RES over the distribution grid would hamper the grid stability due to its stochastic nature under normal *** extreme weather conditions,RES behavior is completely *** there is a need to eliminate the adverse effects caused by the RES and make the distribution grid more reliable and stable under normal and resilient *** address these issues,many researchers proposed several methods to place energy storage units(ESUs)and microgrids(RES integrated),which can support critical loads at an optimal location in the distribution system during normal and extreme conditions,*** aim of this article is to consolidate and review the research towards various approaches to formulate the problem(optimal location,allocation,and operation of ESU and microgrids to face regular and extreme weather condition)and tools to solve it for enhanced system flexibility and *** on the review,a generalized methodology has been designed to adapt the inputs and address both *** the end of the review,future aspects for ESU to strengthen resistance and resiliency of its own are presented,which can be helpful to further improve the reliability and resiliency of the distribution system.

关键词： Energy storage units(ESUs) electrical distribution grid resiliency renewable energy sources(RES)

Combined effect of microwave and hydrothermal treatment on anti-nutritional factors,antioxidant potential and bioactive compounds of plum(Prunus domestica L.)kernels

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Food Bioscience 2022年第2期46卷 300-307页

作者： Mohd Aaqib Sheikh Charanjiv Singh saini Department of Food Engineering and Technology Sant Longowal Institute of Engineering and TechnologyLongowal148106SangrurPunjabIndia

The effect of microwave heating(450 W for 6 min),hydrothermal treatment(45℃ for 6,9,12 h)and their combination on antioxidant potential,anti-nutritional factors,and phenolic compounds of plum kernels were *** and hydrocyanic acid content were reduced to undetectable amounts,while the phytic acid and tannins were reduced to 89.50 and 84.71%,respectively,when combined effects of microwave and hydrothermal(45℃ for 12 h)treatments were *** activity and phenolic content were higher in microwave treated samples than hydrothermal and combined *** results revealed that combined treated samples have considerable amounts of phenolic compounds,particularly gallic acid,chlorogenic acid,(+)-catechin,syringic acid,rutin,3,4-dihydroxy benzoic acid,tannic acid,and quercetin.

关键词： Microwave Plum kernels Amygdalin Hydrocyanic acid Bioactive compounds

Incorporating Triggering and Environmental Factors in the Analysis of Earthquake-Induced Landslide Hazards

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International Journal of Disaster Risk Science 2014年第2期5卷 125-135页

作者： Ming Wang Min Liu saini Yang Peijun Shi State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Academy of Disaster Reduction and Emergency Management Beijing Normal UniversityBeijing 100875China

Pingwu County of Sichuan Province was severely hit by the 12 May 2008 Wenchuan Earthquake and experienced widely distributed earthquake-induced *** proposed an integrated method that incorporates landslide triggering factors embedded in the Newmark displacement computation and other environmental factors,expressed as lithology,land-use type,vegetation cover(Normalized Difference Vegetation Index,NDVI),elevation,and profile and plan curvature,in the analysis of earthquake-induced landslide hazards in the study *** earthquake-induced landslide inventory of this area was obtained by visual interpretation of two highresolution SPOT-5 images before and after the *** used GIS tools to generate an equal number of landslide and non-landslide cell samples in a 30-m grid map,and assigned triggering and environmental variables to each cell.A logistic regression model was built to investigate the occurrence of earthquake-induced *** results show that Newmark displacement(in which triggering factors are embedded)and lithology(as an environmental factor)were the two dominant variables controlling landslide *** environmental factors,including NDVI,land-use type,and elevation,also significantly affected landslide ***81.2%correctness was achieved in the regression *** results confirm the predictive power of our method,which integrates both triggering and environmental factors in modeling earthquake-induced landslides.

关键词： earthquake Earthquake curvature

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