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A Novel Variant of Moth Flame Optimizer for Higher Dimensional Optimization Problems

Journal of Bionic Engineering 2023年第5期20卷 2389-2415页

作者： Saroj kumar Sahoo Sushmita sharma Apu kumar Saha Department of Mathematics National Institute of Technology AgartalaJiraniaTripura799046India

Moth Flame Optimization(MFO)is a nature-inspired optimization algorithm,based on the principle of navigation technique of moth toward *** to less parameter and easy implementation,MFO is used in various field to solve optimization ***,for the complex higher dimensional problems,MFO is unable to make a good trade-off between global and local *** overcome these drawbacks of MFO,in this work,an enhanced MFO,namely WF-MFO,is introduced to solve higher dimensional optimization *** a more optimal balance between global and local search,the original MFO’s exploration ability is improved by an exploration operator,namely,Weibull flight *** addition,the local optimal solutions have been avoided and the convergence speed has been increased using a Fibonacci search process-based technique that improves the quality of the solutions ***-nine benchmark functions of varying complexity with 1000 and 2000 dimensions have been utilized to verify the projected *** popular algorithms and MFO versions have been compared to the achieved *** addition,the robustness of the proposed WF-MFO method has been evaluated using the Friedman rank test,the Wilcoxon rank test,and convergence *** to other methods,the proposed WF-MFO algorithm provides higher quality solutions and converges more quickly,as shown by the ***,the proposed WF-MFO has been used to the solution of two engineering design issues,with striking *** improved performance of the proposed WF-MFO algorithm for addressing larger dimensional optimization problems is guaranteed by analyses of numerical data,statistical tests,and convergence performance.

关键词： Moth Flame Optimization(MFO)algorithm Bio-inspired algorithm Fibonacci search method Weibull distribution Higher dimensional functions

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Proactive Connection Recovery Strategy with Recovery Time Constraint for Survivable Elastic Optical Networks

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China Communications 2021年第9期18卷 236-248页

作者： Dinesh kumar Rajiv kumar Neeru sharma Department of Electronics&Communication Engineering Jaypee University of Information Technology WaknaghatSolan(HP)India

This paper presents a halfway signaling exchange shared path protection(HSE-SPP)on the backup route for a fast connection recovery *** the proposed HSE-SPP,a pre-assigned intermediate node on the backup route is chosen for signaling *** connection fails,source and destination nodes simultaneously generate backup connection setup messages to the pre-assigned intermediate node on the reserved backup *** the intermediate node,signaling process occurs,and acknowledgment is generated for data transmission to the respective end ***,connection recovery time by applying HSE-SPP becomes very *** are performed for network parameters and results are verified with existing *** average recovery time(RT),bandwidth blocking probability(BBP),bandwidth provisioning ratio(BPR),and resource overbuild(RO)ratio of HSE-SPP for ARPANET is 13.54 ms,0.18,3.02,0.55,and for dedicated path protection(DPP)are 13.20 ms,0.56,6.30,3.75 and for shared path protection(SPP)22.19 ms,0.22,3.23,0.70 ***,average RT,BBP,BPR and RO of HSE-SPP for COST239 are8.33 ms,0.04,1.64,0.26,and for DPP 4.23,0.47,3.50,2.04,and for SPP 11.81,0.08,1.66,0.27 ***,results of the proposed strategy are better in terms of RT,BBP,BPR,and RO ratio.

关键词： routing and spectrum assignment halfway signaling exchange-shared path protection(HSE-SPP) dedicated path protection bandwidth blocking probability(BBP)

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Analysis of the wave properties of a new two-lane continuum model with the coupling effect

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Chinese Physics B 2012年第1期21卷 295-309页

作者： Arvind kumar Gupta Sapna sharma Department of Mathematics Indian Institute of Technology Ropar Department of Mathematics Birla Institute of Technology & Science Pilani

A multilane extension of the single-lane anisotropic continuum model （GK model） developed by Gupta and Katiyar for traffic flow is discussed with the consideration of the coupling effect between the vehicles of different lanes in the instantaneous traffic situation and the lane-changing effect. The conditions for securing the linear stability of the new model are presented. The shock and the rarefaction waves, the local cluster effect and the phase transition are investigated through simulation experiments with the new model and are found to be consistent with the diverse nonlinear dynamical phenomena observed in a real traffic flow. The analysis also focuses on empirically observed two- lane phenomena, such as lane usage inversion and the density dependence of the number of lane changes. It is shown that single-lane dynamics can be extended to multilane cases without changing the basic properties of the single-lane model. The results show that the new multilane model is capable of explaining some particular traffic phenomena and is in accordance with real traffic flow.

关键词： two-lane traffic numerical simulation lane usage inversion

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Nonlinear analysis of traffic jams in an anisotropic continuum model

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Chinese Physics B 2010年第11期19卷 156-164页

作者： Arvind kumar Gupta Sapna sharma Department of Mathematics IIT Ropar-140001India Mathematics Group Birla Institute of Technology and SciencePilani-333031India

This paper presents our study of the nonlinear stability of a new anisotropic continuum traffic flow model in which the dimensionless parameter or anisotropic factor controls the non-isotropic character and diffusive influence. In order to establish traff^c flow stability criterion or to know the critical parameters that lead, on one hand, to a stable response to perturbations or disturbances or, on the other hand, to an unstable response and therefore to a possible congestion, a nonlinear stability criterion is derived by using a wavefront expansion technique. The stability criterion is illustrated by numerical results using the finite difference method for two different values of anisotropic parameter. It is also been observed that the newly derived stability results are consistent with previously reported results obtained using approximate linearisation methods. Moreover, the stability criterion derived in this paper can provide more refined information from the perspective of the capability to reproduce nonlinear traffic flow behaviors observed in real traffic than previously established methodologies.

关键词： traffic flow non-linear stability wavefront method

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MOLECULAR DYNAMICS SIMULATION OF POLYMER/CARBON NANOTUBE COMPOSITES

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Acta Mechanica Solida Sinica 2015年第4期28卷 409-419页

作者： Sumit sharma Rakesh Chandra Pramod kumar Navin kumar Department of Mechanical Engineering Dr.B.R.Ambedkar National Institute of Technology School of Mechanical Materials & Energy Engineering (SMMEE) Indian Institute of Technology

In this paper, we present classical molecular dynamics （MD） simulations of model polymer/CNT composites constructed by embedding a single wall （10,10） CNT into two different amorphous polymer matrices： poly（methyl methacrylate） and poly{（m-phenylene-vinylene）-co- [（2,5-dioctoxy-p-phenylene） vinylene]}, respectively, with different volume fractions. The simulation results support the idea that it is possible to use CNTs to mechanically reinforce an appropri- ate polymer matrix, especially in the longitudinal direction of the nanotube. The comparison of the simulation results with the macroscopic rule-of-mixtures for composite systems showed that for strong interfacial interactions, there can be large deviations of the results from the rule-of- mixtures. In order to verify this study, results obtained have been compared with those given by Elliott and Han （2007）.

关键词： nano-structures elasticity mechanical properties computational modeling

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Behavior of ring footing resting on reinforced sand subjected to eccentric-inclined loading

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第2期10卷 347-357页

作者： Vaibhav sharma Arvind kumar Dr.B.R.Ambedkar National Institute of Technology Jalandhar144011India

Ring footings are suitable for the structures like tall transmission towers, chimneys, silos and oil *** types of structures are susceptible to horizontal loads(wind load) in addition to their dead *** the literature, very little or no effort has been made to study the effect of ring footing resting on reinforced sand when subjected to eccentric, inclined and/or eccentric-inclined loadings. This paper aims to study the behavior of ring footing resting on loose sand and/or compacted randomly distributed fiberreinforced sand(RDFS) when subjected to eccentric(0 B, 0.05 B and 0.1 B, where B is the outer diameter of ring footing), inclined(0°,5°,10°, 15°,-5°,-10° and-15°)and eccentric-inclined loadings by using a finite element(FE) software PLAXIS 3 D. The behavior of ring footing is studied by using a dimensionless factor called reduction factor(RF). The numerical model used in the PLAXIS 3 D has been validated by conducting model plate load tests. Moreover, an empirical expression using regression analysis has been presented which will be helpful in plotting a load-settlement curve for the ring footing.

关键词： Soil reinforcement Ring footing Numerical method Randomly distributed fibers Load inclination Load eccentricity Model tests Reduction factor(RF)

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Biodegradable polymethacrylic acid grafted psyllium for controlled drug delivery systems

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Frontiers of Chemical Science and Engineering 2013年第1期7卷 116-122页

作者： Ranvijay kumar Kaushlendra sharma Birla Institute of Technology Pama 800014 India

Polymethacrylic acid （PMA） was synthesized on the backbone of psyllium （Psy） by a microwave assisted method to prepare polymeric grafted materials designated as （Psy-g-PMA）. Various grades of Psy-g-PMA were prepared by changing the degree of grafting from 35%- 58% and the materials were then made into tablets. Swelling and biodegradability studies of the tablets were carried out. Acetyl salicylic acid was incorporated in the various Psy-g-PMA samples and tablets were prepared to study the in vitro drug release in acidic （pH = 4）, neutral （pH = 7）, and basic （pH = 9） media. In the acidic medium, the swelling was more than 1300%. In addition, the biodegradable Psy-g-PMA had the highest drug release in the acidic medium. This may be attributed to Fickian diffusion since the drug and the medium in which it was released have the same acidic nature.

关键词： psyllium acetyl salicylic acid in-vitro drug release swelling biodegradation

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THE GENERALIZED HYPERSTABILITY OF GENERAL LINEAR EQUATION IN QUASI-2-BANACH SPACE

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Acta Mathematica Scientia 2022年第4期42卷 1357-1372页

作者： Ravinder kumar sharma Sumit CHANDOK School of Mathematics Thapar Institute of Engineering and TechnologyPatiala-147004India

In this paper,we study the hyperstability for the general linear equation f(ax+by)=Af(x)+Bf(y)in the setting of complete quasi-2-Banach *** first extend the main fixed point result of Brzdek and Ciepliński(Acta Mathematica Scientia,2018,38 B(2):377-390)to quasi-2-Banach spaces by defining an equivalent quasi-2-Banach *** we use this result to generalize the main results on the hyperstability for the general linear equation in quasi-2-Banach *** results improve and generalize many results of literature.

关键词： Hyperstability quasi-2-Banach spaces fixed point general linear equation

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Biodiverse rotifer assemblage (Rotifera： Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India： composition and ecosystem diversity

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Journal of Oceanology and Limnology 2018年第2期36卷 362-375页

作者： bhushan kumar sharma shaikhul islam khan sumita sharma Freshwater Biology Laboratory Department of Zoology North-Eastern Hill University Shillong-793 022 Meghalaya Indi

The study aims to ascertain the hypothesis on the rich rotifer biodiversity of the floodplain lakes （beels） of the Brahmaputra river basin and to use these metazoans to assess trophic status or to characterize habitat variations of wetlands. The plankton samples collected from four beels of lower Assam revealed 160 Rotifera species belonging to 35 genera and 19 families. The richness is of biodiversity value as -38.0% and -57.0% of the rotifer species known till date from India and northeast India （NEI）, respectively. One species each is new to the Oriental region and NEI, and three species are new to Assam; 23 species merit global biogeography interest and several exhibit distribution values in the Indian sub-region. The diverse Lecanidae 〉 Brachionidae 〉 Lepadellidae 〉 Trichocercidae and speciose littoral-periphytic Lecane〉 Lepadella〉Trichocerca, and richness of Brachionus spp. following removal of aquatic macrophytes are noteworthy. Overall rotifer composition showed homogeneity amongst beels while lower monthly richness and community similarities affirmed heterogeneity within individual beels. We propose L/B quotient based on Lecane： Brachionus species ratios to characterize habitat variations of the sampled wetlands. Slfide^ek＇s B/T quotient based on Brachionus： Trichocerca species ratios affirmed general ＇meso-trophic＇ status of different beels. Our results provided little insight on the influence of individual abiotic factors but the canonical correspondence analyses asserted higher cumulative influence of ten abiotic parameters on Rotifera richness in each beel.

关键词： B/T quotient L/B quotient intensive fishing habitat disturbance interesting taxa richness tropical beels

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FDTD based transition time dependent crosstalk analysis for coupled RLC interconnects

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Journal of Semiconductors 2014年第5期35卷 69-73页

作者： Devendra kumar sharma Brajesh kumar Kaushik R.K.sharma Department of ECE Meerut Institute of Engineering and TechnologyMeerut India Department of Electronics & Computer Engineering Indian Institute of TechnologyRoorkee India Department of ECE National Institute of TechnologyKurukshetra Haryana India

The performance of high density chips operating in the GHz range is mostly affected by on-chip interconnects. The interconnect delay depends on many factors, a few of them are inputs toggling patterns, line ＆ coupling parasitics, input rise/fall time and source/load characteristics. The transition time of the input is of prime importance in high speed circuits. This paper addresses the FDTD based analysis of transition time effects on functional and dynamic crosstalk. The analysis is carried out for equal and unequal transition times of coupled inputs. The analysis of the effects of unequal rise time is equally important because practically, it is quite common to have mismatching in the rise time of the signals transmitting through different length wires. To demonstrate the effects, two distributed RLC lines coupled inductively and capacitively are taken into consideration. The FDTD technique is used because it gives accurate results and carries time domain analysis of coupled lines. The number of lumps in SPICE simulations is considered the same as those of spatial segments. To validate the FDTD computed results, SPICE simulations are run and results are compared. A good agreement of the computed results has been observed with respect to SPICE simulated results. An average error of less than 3.2% is observed in the computation of the performance parameters using the proposed method.

关键词： FDTD transition time crosstalk noise delay coupled interconnects

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