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Seismic resilience of retrofitted RC buildings

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Earthquake Engineering and Engineering Vibration 2020年第3期19卷 561-571页

作者： Ghazanfar Ali anwar You Dong Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina

Existing buildings can be at a greater seismic risk due to non-conformance to current design codes and may require structural retrofitting to improve building *** performance of buildings is measured in terms of immediate consequences due to direct damage,but the continuing impacts related to recovery are not considered in seismic retrofit *** paper introduces a framework of retrofit selection based on the seismic resilience of deficient buildings retrofitted with the conventional mitigation *** assembly-based methodology is considered for the seismic resilience assessment by compiling a nonlinear numerical model and a building performance *** collapse fragility is developed from the capacity curve,and the resulting social,economic,and environmental consequences are *** seismic resilience of a building is assessed by developing a downtime assessment methodology incorporating sequence of repairs,impeding factors,and utility *** functionality states are developed for the building functionality given investigated time interval,and a functionality curve for each retrofit is *** is concluded that seismic resilience can be used as a performance indicator to assess the continuing impacts of a hazard for the retrofit selection.

关键词： fitted consequences buildings

An approach to Iocational marginal price based zonal congestion management in deregulated electricity market

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Frontiers in Energy 2016年第2期10卷 240-248页

作者： Md SARWAR anwar Shahzad SIDDIQUI Department of Electrical Engineering Jamia Millia Islamia (A Central University) New Delhi 110025 India

Congestion of transmission line is a vital issue and its management pose a technical challenge in power system deregulation. Congestion occurs in deregulated electricity market when transmission capacity is not sufficient to simultaneously accommodate all constraints of power transmission through a line. Therefore, to manage congestion, a locational marginal price （LMP） based zonal congestion management approach in a deregulated elec- tricity market has been proposed in this paper. As LMP is an economic indicator and its difference between two buses across a transmission line provides the measure of the degree of congestion, therefore, it is efficiently and reliably used in deregulated electricity market for conges- tion management. This paper utilizes the difference of LMP across a transmission line to categorize various congestion zones in the system. After the identification of congestion zones, distributed generation is optimally placed in most congestion sensitive zones using LMP difference in order to manage congestion. The performance of the proposed methodology has been tested on the IEEE 14-bus system and IEEE 57-bus system.

关键词： locational marginal price (LMP) distributed generation pool market deregulated electricity market,congestion management

Nd-doped NiFe_(2)O_(4) and its composite with CNTs to tune photocatalytic activity

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Journal of Rare Earths 2023年第12期41卷 1919-1928,I0004页

作者： Fatimah Mohammed AAlzahrani Amna Irshad Sonia zulfiqar z.A.Alrowaili Noor ul Ain Asima anwar Muhammad Farooq Warsi M.S.Al-Buriahi Department of Chemistry CollegeofSciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabi Institute of Chemistry Baghdad-ul-Jadeed CampusThe Islamia University of BahawalpurBahawalpur6310Pakistan Department of Chemistry Faculty of ScienceUniversity of Ostrava30.Dubna 22Ostrava70103Czech Republic Department of Chemicaland Biological Engineering Iowa State UniversitySweeney Hall618 Bissll RoadAmesIowa 50011United States Department of Physics College of ScienceJouf UniversityPo.Box 2014SakakaSaudi Arabia Institute of Physics Baghdad-ul-Jadeed CampusThe Islamia University of BahawalpurBahawalpur63100Pakistan Department of Physics Sakarya UniversitySakaryaTurkey

Rare earth-doped spinel nano ferrites are attaining importance as heterogeneous nanocatalysts for the degradation of organic *** earth metal doping increases the electrical and optical properties,as well as the surface-to-volume ratio of the bare *** this work,NiFe_(2)O_(4)(NF) and Nd-NiFe_(2)O_(4)(NF-1) were successfully synthesized via the co-precipitation *** nanotubes(CNT)-based nanocomposite(NF-2) was prepared using the ultra-sonication *** prepared materials were analyzed via various physiochemical *** degradation efficiency of these materials was analyzed for the degradation of Rhodamine B,methylene blue,and benzoic acid,NF-2 shows the highest efficiency among all the prepared ***-2 shows 83.87%,90.80%,and 66.96% degradation of Rhodamine B,methylene blue,and benzoic acid,*** reason for the superior activity of NF-2 is the existence of rare earth Nd ions and *** surface area of NF increases due to the presence of carbon nanotubes and enhanced surface area provides more active sites for the degradation reaction.

关键词： XRD Carbon nanotubes Benzoic acid Photo-degradation Visible light Rare earths

Intermolecular Interactions in Binary Liquid Mixtures of Styrene with m-, o-, or p-xylene

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物理化学学报 2008年第1期24卷 47-54页

作者： ALI anwar NABI Firdosa Department of Chemistry Jamia Millia Islamia （Central University） New Delhi-110025 India

密度()，超声的速度()，并且有m-，o-，或p二甲苯的苯乙烯(猪圈)的二进制混合物的折射索引(n)，他们的纯液体包括那些，在温度在全部作文范围上被测量 298.15 ， 303.15 ， 308.15 ，并且 313.15 K 。过量卷(VE ) ，在 isentropic 压... 详细信息

密度()，超声的速度()，并且有m-，o-，或p二甲苯的苯乙烯(猪圈)的二进制混合物的折射索引(n)，他们的纯液体包括那些，在温度在全部作文范围上被测量 298.15 ， 303.15 ， 308.15 ，并且 313.15 K 。过量卷(VE ) ，在 isentropic 压缩的可能性(ks ) 的偏差，声学的阻抗(z) ，和折射索引(n) 从试验性的数据被计算。部分臼齿的体积(V0,2 ) 和在苯乙烯的二甲苯的部分臼齿的 isentropic 压缩的可能性(K0,2 ) 也是计算的。导出的功能也就是， VE， ks， z， n， V0,2，和 K0,2 被用来有发生在现在的液体混合物的部件分子之间的分子间的相互作用的更好的理解。这些参数的变化建议在苯乙烯和 o- ， m- ，或 p 二甲苯分子之间的相互作用跟随序列：p 二甲苯 >o 二甲苯 >m 二甲苯。除了为 VE 的计算使用密度数据，臼齿的体积也是的过量估计了使用折射索引数据。而且，混合规则的几个折射索引被用来理论上估计学习液体混合物的折射索引。总的来说，计算并且测量的数据以在混合部件之间的相互作用被解释。

关键词：分子间相互作用二元液体混合物苯乙烯二甲苯折射率热力学

Preformation probability and kinematics of cluster emission yielding Pb-daughters

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Chinese Physics C 2023年第7期47卷 123-132页

作者： Joshua T.Majekodunmi M.Bhuyan K.anwar N.Abdullah Raj Kumar Institute of Engineering Mathematics Universiti Malaysia PerlisArau02600PerlisMalaysia Center for Theoretical and Computational Physics Department of PhysicsFaculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia School of Physics and Materials Science Thapar Institute of Engineering and TechnologyPatialaPunjab 147004India

In the present study,the newly established preformation formula is applied for the first time to study the kinematics of the cluster emission from various radioactive nuclei,especially those that decay to the double shell closure^(208)Pb nucleus and its neighbors as *** recently proposed universal cluster preformation formula has been established based on the concepts that underscore the influence of mass and charge asymmetry(η_(A)andη_(z)),cluster mass A_(c),and the Q-value,paving the way to quantify the energy contribution during preformation as well as during the tunneling process *** cluster-daughter interaction potential is obtained by folding the relativistic mean-field(RMF)densities with the recently developed microscopic R3Y using the NL 3^(*)and the phenomenological M3Y NN potentials to compare their *** penetration probabilities are calculated from the WKB *** the inclusion of the new preformation probability P_(0),the predicted half-lives of the R3Y and M3Y interactions are in good agreement with the experimental ***,a careful inspection reflects slight differences in the decay half-lives,which arise from their respective barrier *** P_(0)for systems with double magic shell closure^(208)Pb daughter are found to be an order of≈10^(2)higher than those with neighboring Pb daughter *** exploring the contributions of the decay energy,the recoil effect of the daughter nucleus is evaluated,in contrast to several other ***,the centrality of the Q-value in the decay process is demonstrated and redefined within the preformed cluster-decay ***,we have introduced a simple and intuitive set of criteria that governs the estimation of recoil energy in the cluster radioactivity.

关键词： relativistic mean field cluster radioactivity preformation probability decay width and half life recoil energy Q-value of the decay

基于滑模极值搜索的无级变速器夹紧力控制策略

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机械工程学报 2017年第4期53卷 105-113页

作者：韩玲安颖 SOHEL anwar 赵希禄长春工业大学机电工程学院长春130012 湖南大学汽车工程学院长沙410000 美国普渡大学机械学院美国印第安纳州波利斯46202 日本琦玉工业大学日本深谷369-0293

针对无级变速器传统夹紧力控制进行优化,提出基于滑模极值搜索的控制策略。建立具有非线性、离散性的滑移率数学模型,并证明无级变速器传动效率和金属带滑移率在一定速比下存在的特殊关系,设计滑模极值搜索控制器。利用该控制器对滑移... 详细信息

针对无级变速器传统夹紧力控制进行优化,提出基于滑模极值搜索的控制策略。建立具有非线性、离散性的滑移率数学模型,并证明无级变速器传动效率和金属带滑移率在一定速比下存在的特殊关系,设计滑模极值搜索控制器。利用该控制器对滑移率最优区域进行监控搜索。通过振荡过滤干扰信号的方式,收敛获取到最优滑移率。其中,以系统失稳的临界值为约束目标,通过主动轮转矩较强的抗干扰能力,显示出该控制系统具有良好的鲁棒性。为验证夹紧力控制策略的有效性及可行性,建立仿真平台及实车试验平台。仿真及实车验证结果表明:滑模极值搜索控制与传统夹紧力控制相比较,传动效率提高7.98%~9.98%,燃油效率提高1.15%,ECE+EDUC工况下系统油耗降低约5.54%。滑模极值搜索控制算法的提出,为满足整车提高燃油经济需求的可靠性、稳定性及优化空间提出了一种新方法。

关键词：无级变速器滑模极值搜索滑移率传动效率

Correlation analysis between the Aral Sea shrinkage and the Amu Darya River

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Journal of Arid Land 2023年第7期15卷 757-778页

作者： WANG Min CHEN Xi CAO Liangzhong KURBAN Alishir SHI Haiyang WU Nannan EzIz.anwar YUAN Xiuliang Philippe DE MAEYER State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Department of Geography Ghent UniversityGhent 9000Belgium Sino-Belgian Joint Laboratory of Geo-Information Urumqi 830011China Sino-Belgian Joint Laboratory of Geo-Information Ghent 9000Belgium Research Center for Ecology and Environment of Central Asia Chinese Academy of SciencesUrumqi 830011China Jiujiang University Jiujiang 332000China Hohai University Nanjing 211100China

The shrinkage of the Aral Sea,which is closely related to the Amu Darya River,strongly affects the sustainability of the local natural ecosystem,agricultural production,and human *** this study,we used the Bayesian Estimator of Abrupt change,Seasonal change,and Trend(BEAST)model to detect the historical change points in the variation of the Aral Sea and the Amu Darya River and analyse the causes of the Aral Sea shrinkage during the 1950–2016 ***,we applied multifractal detrend cross-correlation analysis(MF-DCCA)and quantitative analysis to investigate the responses of the Aral Sea to the runoff in the Amu Darya River,which is the main source of recharge to the Aral *** results showed that two significant trend change points in the water volume change of the Aral Sea occurred,in 1961 and *** 1961,the water volume in the Aral Sea was stable,after which it began to shrink,with a shrinkage rate fluctuating around 15.21 km3/*** 1974,the water volume of the Aral Sea decreased substantially at a rate of up to 48.97 km3/a,which was the highest value recorded in this *** addition,although the response of the Aral Sea's water volume to its recharge runoff demonstrated a complex non-linear relationship,the replenishment of the Aral Sea by the runoff in the lower reaches of the Amu Darya River was identified as the dominant factor affecting the Aral Sea *** on the scenario analyses,we concluded that it is possible to slow down the retreat of the Aral Sea and restore its ecosystem by increasing the efficiency of agricultural water use,decreasing agricultural water use in the middle and lower reaches,reducing ineffective evaporation from reservoirs and wetlands,and increasing the water coming from the lower reaches of the Amu Darya River to the 1961–1973 *** measures would maintain and stabilise the water area and water volume of the Aral Sea in a state of ecological ***,this study focuses on how huma

关键词： Aral Sea shrinkage recharge runoff Amu Darya River Syr Darya River multifractal detrend cross-correlation analysis(MF-DCCA) Bayesian Estimator of Abrupt change,Seasonal change,and Trend(BEAST) Central Asia

Integrating microRNAs and mRNAs reveals the hormones synthesis and signal transduction of maize under different N rates

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Journal of Integrative Agriculture 2023年第9期22卷 2673-2686页

作者： YUE Kai LI Ling-ling XIE Jun-hong zechariah EFFAH Sumera anwar WANG Lin-lin MENG Hao-feng LI Lin-zhi College of Agronomy Gansu Agricultural UniversityLanzhou 730070P.R.China State Key Laboratory of Aridland Crop Science Gansu Agricultural UniversityLanzhou 730070P.R.China Council for Scientific and Industrial Research Plant Genetic Resources Research InstituteBunso 00233Ghana Department of Biosciences Durham UniversityDurham DH13LEUK Department of Botany Government CollegeWomen UniversityFaisalabad 38000Pakistan College of Resources and Environment Science Gansu Agricultural UniversityLanzhou 730070P.R.China

The effect of nitrogen(N)fertilizer on the development of maize kernels has yet to be fully ***-mRNA analyses could help advance our understanding of how kernels respond to *** study analyzed the morphological,physiological,and transcriptomic changes in maize kernels under different N rates(0,100,200,and 300 kg ha–1).The result showed that increasing N application significantly increased maize grains’fresh and dry weight until N reached 200 kg ha–*** levels of indole-3-acetic acid,cytokinin,gibberellin,and a lower level of ethylene were associated with increased N *** obtained 31 differentially expressed genes(DEGs)in hormone synthesis and transduction,and 9 DEGs were regulated by 14 differentially expressed microRNAs(DEMIs)in 26 *** candidate DEGs and DEMIs provide valuable insight for manipulating grain filling under different N rates.

关键词： maize kernels phytohormones high-throughput sequencing microRNA

Optimal configuration analysis for a campus microgrid—a case study

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Protection and Control of Modern Power Systems 2017年第1期2卷 245-256页

作者： Fahad Iqbal anwar Shahzad Siddiqui Department of Electrical Engineering Jamia Millia IslamiaNew DelhiIndia

The foremost issues of 21st century are challenging demand of electrical energy and to control the emission of Green House Gases(GHG)*** energy resources based sustainable microgrid emerges as one of the best feasible solution for future energy demand while considering zero carbon emission,fossil fuel independency,and enhanced *** this paper,optimization and implementation of institutional based sustainable microgrid are discussed based on cost analysis,carbon emission,and availability of energy *** microgrid topologies are considered for addressing the most ideal *** metrological data such as irradiance is acquired from solar satellite data of NASA(National Aero Space Agency)while the data for wind speed is taken from synergy enviro engineer’s ***®simulation tool is used for modelling and optimization purpose.

关键词： Microgrids Distributed generation Renewable energy resources Battery bank Diesel generator Solar photovoltaic system Wind turbine system