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Improved deep mixed kernel randomized network for wind speed prediction

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Clean Energy 2023年第5期7卷 1006-1031页

作者： Vijaya Krishna Rayi Ranjeeta Bisoi s.p.mishra p.K.Dash Department of EEE GMR Institute of TechnologyRajamAndhra PradeshIndia Multidisciplinary Research Cell Siksha‘O’Anusandhan Deemed to be UniversityBhubaneswarOdishaIndia

Forecasting wind speed is an extremely complicated and challenging problem due to its chaotic nature and its dependence on several atmospheric *** there are several intelligent techniques in the literature for wind speed prediction,their accuracies are not yet very ***,in this paper,a new hybrid intelligent technique named the deep mixed kernel random vector functional-link network auto-encoder(AE)is proposed for wind speed *** proposed method eliminates manual tuning of hidden nodes with random weights and biases,providing prediction model generalization and representation *** reduces reconstruction error due to the exact inversion of the kernel matrix,unlike the pseudo-inverse in a random vector functional-link network,and short-ens the execution ***,the presence of a direct link from the input to the output reduces the complexity of the prediction model and improves the prediction *** kernel parameters and coefficients of the mixed kernel system are optimized using a new chaotic sine–cosine Levy flight optimization *** lowest errors in terms of mean absolute error(0.4139),mean absolute percentage error(4.0081),root mean square error(0.4843),standard deviation error(1.1431)and index of agreement(0.9733)prove the efficiency of the proposed model in comparison with other deep learning models such as deep AEs,deep kernel extreme learning ma-chine AEs,deep kernel random vector functional-link network AEs,benchmark models such as least square support vector machine,autoregressive integrated moving average,extreme learning machines and their hybrid models along with different state-of-the-art methods.

关键词： deep neural network mixed kernel random vector functional network auto-encoder chaotic sine-cosine Levy flight optimization single and multistep wind speed prediction

Adaptive fractional integral terminal sliding mode power control of UpFC in DFIG wind farm penetrated multimachine power system

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protection and Control of Modern power systems 2018年第1期3卷 79-92页

作者： p.K.Dash R.K.patnaik s.p.mishra siksha O Anusandhan University Khandagiri SquareBhubaneswarOdisha 751030India GMR Institute of Technology RajamAndhra Pradesh 532127India

With an aim to improve the transient stability of a DFIG wind farm penetrated multimachine power system(MpN),an adaptive fractional integral terminal sliding mode power control(AFITsMpC)strategy has been proposed for the unified power flow controller(UpFC),which is compensating the *** proposed AFITsMpC controls the dq-axis series injected voltage,which controls the admittance model(AM)of the *** a result the power output of the DFIG stabilizes which helps in maintaining the equilibrium between the electrical and mechanical power of the nearby *** the rotor angular deviation of the respective generators gets recovered,which significantly stabilizes the *** proposed AFITsMpC for the admittance model of the UpFC has been validated in a DFIG wind farm penetrated 2 area 4 machine power system in the MATLAB *** robustness and efficacy of the proposed control strategy of the UpFC,in contrast to the conventional pI control is vindicated under a number of intrinsic operating conditions,and the results analyzed are satisfactory.

关键词： Adaptive fractional integral terminal sliding mode power control Doubly fed induction generator Multimachine power network Unified power flow controller

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对熔纺生产中清洗操作的探讨

国外纺织技术（化纤．染整．环境保护分册） 1993年第1期 3-6页

作者： s.p.mishra 候震伟

一、引言合成纤维生产经历高聚物熔体的挤出、冷却固化牵伸及热定型。产品的最终性能将受纺丝、牵伸和热定型诸因素的共同影响。熔融、混合和泵送是熔纺的三个主要部分。

关键词：合成纤维清洗操作熔融纺丝

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用磷酸碳酸磷浮法生产优质白糖

甘蔗糖业 1981年第3期 39-43页

作者： s.p.mishra 杨云飞

在基次哈(Kichha)糖业公司采用磷酸碳酸法生产以后,解决了许多有关双重碳酸法及双重亚硫酸法中的技术问题。这个成果已发表在上次印度制糖学会的糖业杂志上。由于采用了一种处理糖浆和回溶糖浆的澄清流程,这个方法又进一步推广到1979/8... 详细信息

在基次哈(Kichha)糖业公司采用磷酸碳酸法生产以后,解决了许多有关双重碳酸法及双重亚硫酸法中的技术问题。这个成果已发表在上次印度制糖学会的糖业杂志上。由于采用了一种处理糖浆和回溶糖浆的澄清流程,这个方法又进一步推广到1979/80榨季的炼糖生产。基次哈糖厂由于采用了'磷酸碳酸磷浮法',取得了降低生产成本,提高产品质量的良好效果。本文主要论述近两个榨季该厂采用磷酸碳酸法试验,以及一个月的磷酸碳酸浮升澄清法试验的情况。

关键词：碳酸法回溶糖浆磷浮法磷酸磷化合物白糖食糖

Thermally stimulated properties in Znse：Tb and Znse：(Mn, Tb) phosphors

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Journal of semiconductors 2018年第2期39卷 13-16页

作者： A.K.mishra s.K.mishra s.p.pandey Kshama Lakshmi mishra sHEAT College of Engineerig Varansi (U.P.) India Army public school Kunraghat Gorakhpur (U.P.) India Department of physics MM University Ambala Haryana India shree Thakurdwara Balika Vidyalaya Ghaziabad (U.P.) India

Thermoluminescence studies were performed of Znse：Tb and Znse：（Mn, Tb） phosphors. A method of preparation for Znse phosphors doped with Tb and（Mn, Tb） has been discussed. The thermoluminescence（TL）properties of these phosphors have been studied from 100 to 370 K temperature after exciting by UV radiation（365 nm）at three uniform heating rates 0.4, 0.6 and 0.9 K/s. The trapping parameters like trap depth, lifetime of electrons and capture cross-section have also been determined using various methods.

关键词： thermoluminescence electroluminescence capture cross-section ionizing radiation phosphors Curie's method

Effect of friction stir processing on mechanical properties and heat transfer of TIG welded joint of AA6061 and AA7075

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Defence Technology（防务技术） 2021年第3期17卷 715-727页

作者： Husain Mehdi R.s.mishra Department of Mechanical Engineering Delhi Technological UniversityDelhiIndia

Tungsten inert gas(TIG) welding is the most commonly used joining process for aluminum alloy for AA6061 and AA7075 which are highly demanded in the aerospace engineering and the automobile sector, but there are some defects occur during TIG welding like micro-crack, coarse grain structure, and porosity. To improve these defects, the TIG welded joint is processed using friction stir processing(Fsp).This paper presents the effect of friction stir processing on TIG welding with filler ER4043 and ER 5356 for dissimilar aluminum alloy AA6061 and AA7075. The mechanical characterization, finite element formulation and mathematical equations of heat transfer of TIG + Fsp welded joints are investigated using ANsYs Fluent software by adjusting process parameters of Fsp. The results show that the maximum compressive residual stress 73 Mpa was obtained at the fusion zone(FZ) of the TIG weldment with filler ER4043, whereas minimum compressive residual stress 37 Mpa was obtained at stir zone(sZ) of the TIG+ Fsp with filler 5356. The maximum heat flux 5.33 × 106 W/m2 and temperature 515C have observed at tool rotation 1600 rpm with a feed rate of 63 mm/min. These results give a satisfactory measure of confidence in the fidelity of the simulation。

关键词： Residual stress TIG+FsW Heat transfer Micro-hardness Tensile strength

Dielectric, piezoelectric, and ferroelectric properties of lanthanum-modified pZTFN ceramics

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International Journal of Minerals,Metallurgy and Materials 2014年第10期21卷 1019-1027页

作者： Arvind Kumar s.K.mishra Research and Technology Development Centre Sharda University Dr. Harisingh Gour University

specimens of pb1-1.5xLax（Zr0.53 Ti0.47）1-y-zFeyNb2O3 （x = 0, 0.004, 0.008, 0.012, and 0.016, y = z = 0.01）（pZTFN） ceramics were synthesized by a semi-wet route. In the present study, the effect of La doping was investigated on the structural, microstructural, dielectric, piezoelectric, and ferroelectric properties of the ceramics. The results show that, the tetragonal （space group p4mm） and rhombohedral （space group R3c） phases are observed to coexist in the sample at x = 0.012. Microstructural investigations of all the samples reveal that La doping inhibits grain growth. Doping of La into pZTFN improves the dielectric, ferroelectric, and piezoelectric properties of the ceramics. The hys- teresis loops of all specimens exhibit nonlinear behavior. The dielectric, piezoelectric and ferroelectric properties show a maximum response atx 〉 0.012, which corresponds to the morphotropic phase boundary （MpB）.

关键词： ceramics lanthanum doping dielectric properties piezoelectricity ferroelectricity Rietveld refinement hysteresis loops

Nonsmooth semi-Infinite Minmax programming Involving Generalized(Φ, ρ)-Invexity

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Journal of systems science & Complexity 2015年第4期28卷 857-875页

作者： UpADHYAY B B mishra s K Department of Basic sciences & Humanities National Institute of Technology

This paper introduces some new generalizations of the concept of （~, p）-invexity for non- differentiable locally Lipschitz functions using the tools of Clarke subdifferential. These functions are used to derive the necessary and sufficient optimality conditions for a class of nonsmooth semi-infinite minmax programming problems, where set of restrictions are indexed in a compact set. Utilizing the sufficient optimality conditions, the authors formulate three types of dual models and establish weak and strong duality results. The results of the paper extend and unify naturally some earlier results from the literature.

关键词： Duality, generalized invexity locally Lipschitz functions, minmax programming, semi-infinite programming.

Impedance and ferroelectric properties of sr^(2+) modified pZT-pMN ceramics

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International Journal of Minerals,Metallurgy and Materials 2014年第6期21卷 595-603页

作者： Arvind Kumar s.K.mishra Research and Technology Development Centre Sharda University Dr. Harisingh Gour University

sr^2＋ modified polycrystalline pZT-pMN ceramics were synthesized by a semi-wet route. Impedance spectroscopy studies indicate the bulk and grain boundary effects of pZT-pMN material along with the negative temperature coefficient of resistance. The bulk conductiv-ity exhibits an Arrhenius-type thermally activated hopping process which is supported by the AC conductivity behavior as a function of fre-quency and temperature. It is observed that the remnant polarization increases with an increase in the sr2＋content in pZT-pMN.

关键词： piezoelectric ceramics ferroelectric materials ferroelectricity electrochemical properties strontium