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METRICALLY REGULAR MAPPING AND ITS UTILIZATION TO CONVERGENCE ANALYSIS OF A RESTRICTED INEXACT NEWTON-TYPE METHOD

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Journal of Computational Mathematics 2022年第1期40卷 44-69页

作者： Mohammed Harunor rashid Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China Department of Mathematics Faculty of ScienceUniversity of RajshahiRajshahi-6205Bangladesh

In the present paper,we study the restricted inexact Newton-type method for solving the generalized equation 0∈f(x)+F(x),where X and Y are Banach spaces,f:X→Y is a Frechet differentiable function and F:X■Y is a set-valued mapping with closed *** establish the convergence criteria of the restricted inexact Newton-type method,which guarantees the existence of any sequence generated by this method and show this generated sequence is convergent linearly and quadratically according to the particular assumptions on the Frechet derivative of ***,we obtain semilocal and local convergence results of restricted inexact Newton-type method for solving the above generalized equation when the Frechet derivative of f is continuous and Lipschitz continuous as well as f+F is metrically *** application of this method to variational inequality is *** addition,a numerical experiment is given which illustrates the theoretical result.

关键词： Generalized equation Restricted inexact Newton-type method Metrically regular mapping Partial Lipschitz-like mapping Semilocal convergence.

Wave propagation in parallel-plate waveguides filled with nonlinear left-handed material

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Chinese Physics B 2011年第1期20卷 346-351页

作者： Burhan Zamir rashid Ali Department of Physics University of the PunjabQuaid-i-Azam CampusLahore-54590Pakistan

A theoretical investigation of field components for transverse electric mode in the parallel-plate waveguides has been studied. In this analysis two different types of waveguide structures have been discussed, i.e., （a） normal good/perfect conducting parallel-plate waveguide filled with nonlinear left-handed material and （b） high-temperature-superconducting parallel-plate waveguide filled with nonlinear left-handed material. The dispersion relations of transverse electric mode have also been discussed for these two types of waveguide structures.

关键词： waveguides wave propagation left-handed materials

Rice plant growth and yield: foliar application of plasma activated water

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Plasma Science and Technology 2021年第7期23卷 134-143页

作者： M M rashid Mamunur rashid M M HASAN M R TALUKDER Plasma Science and Technology Lab Department of Electrical and Electronic EngineeringUniversity of RajshahiRajshahi 6205Bangladesh Plant Pathology and Mycology Lab Department of BotanyUniversity of RajshahiRajshahi 6205Bangladesh Plant Pathology Lab Department of Agronomy and Agricultural ExtensionUniversity of RajshahiRajshahi 6205Bangladesh

Plasma activated water(PAW)was prepared for 10 min to be applied one toﬁve times as a foliar spray to rice plants,to investigate plant growth,yield and the concentrations of total soluble protein and sugar in the rice grains *** results reveal that(1)the plant height,stem diameter,dry weight,chlorophyll and total carotene concentrations were improved by∼15%,∼25%,∼24%,∼47%and∼45%,respectively,with respect to control,(2)defense mechanisms of the plants treated with PAW were improved,(3)concentrations of total soluble protein and sugar were enhanced in the rice grains of PAW treated plants and(4)yield was increased by∼14%.

关键词： plasma agriculture plasma activated water rice plant growth rice yield total soluble protein

Resilience Analysis and Cascading Failure Modeling of Power Systems Under Extreme Temperatures

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1446-1457页

作者： Seyyed rashid Khazeiynasab Junjian Qi IEEE Department of Electrical and Computer Engineering University of Central Florida

In this paper, we propose an AC power flow based cascading failure model that explicitly considers external weather conditions, extreme temperatures in particular, and evaluates the impact of extreme temperature on the initiation and propagation of cascading blackouts. Based on this model, resilience analysis of the power system is performed with extreme temperatures. Specifically, the changes of load and dynamic line rating are modeled due to temperature disturbance. The probabilities for transmission line and generator outages are evaluated, and the timing for each type of events is calculated to decide the actual event sequence. It should be emphasized that the correlated events, in the advent of external temperature changes, could contribute to voltage instability. Besides, we model undervoltage load shedding and operator re-dispatch as control strategies for preventing the propagation of cascading failures. The effectiveness of the proposed model is verified by simulation results on the RTS-96 3-area system. It is found that temperature disturbances can lead to correlated load change and line/generator tripping, which will greatly increase the risk of cascading and voltage instability. Critical temperature change, critical area with temperature disturbance, the identification of most vulnerable buses, and the comparison of different control strategies are also investigated.

关键词： Blackout cascading failure correlation extreme temperature extreme weather power transmission reliability resilience voltage stability

Effect of ultrasonic assisted KOH pretreatment on physiochemical characteristic and anaerobic digestion performance of wheat straw

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Chinese Journal of Chemical Engineering 2020年第9期28卷 2409-2416页

作者： rashid Mustafa Korai Xiujin Li Department of Environmental Science&Engineering Beijing University of Chemical TechnologyBeijing 100029China Department of Petroleum&Gas Engineering Dawood University of Engineering&TechnologyNew M-A.Jinnah RoadKarachi-74800Pakistan

In this study,ultrasonic field was applied during potassium hydroxide(KOH) pretreatment of wheat straw(WS).Three concentrations of KOH(2%,4%,and 6%) were tested during *** results showed that there was a significant influence of the ultrasonic assisted KOH pretreatment(KOH(Upt)) on physiochemical characteristics of WS during pretreatment as well as on digester *** pretreatment time was optimized to 36 h for all KOH *** highest total volatile fatty acid(TVFA) productions(3189 mg·L^-1) from 6%KOHupt samples were ***,the SEM analysis and FTIR observation revealed that KOH(Upt) effectively disrupted the physical morphology of WS and successful breaking of lignin and hemicellulose linkage between carboxyl ***,the highest biogasification(555 ml·(g VS(loaded))^-1) and biomethane productions(282 ml·(g VS(loaded))^-1) from 4%KOH(Upt) digesters,with 69% of biodegradability,indicated significant availability of organic matter from KOH(Upt).The R^2 values(0.993-0.998) in Modified Gompertz Model indicated that the model was feasible to predict methane yield for this ***,the Bo values for 4%KOH(Upt)(283.30±2.74 ml·(gVS(loaded))^-1) were also in agreement to the experimental methane *** results suggested that ultrasonic addition during KOH pretreatment of WS can effectively increase the organic yield during ***,the increase in methane production from 4% KOH(Upt) suggested that digester performance can be improved with lower KOH concentrations using this pretreatment.

关键词： Ultrasonic pretreatment Potassium hydroxide(KOH) Wheat straw Anaerobic digestion Biogasification Biomethane

Graphitization in CK 45 Steel

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Journal of Materials Science & Technology 2009年第2期25卷 164-168页

作者： A.R. Kiani-rashid Department of Materials Engineering Faculty of Engineering Ferdowsi University of Mashhad Mashhad Iran

The purpose of this study was to determine the influence of heat treatment cycle on graphite phase formation on CK 45 steel. The presence of well distributed graphite in the matrix is responsible for the good mechanical and thermal properties of this kind of alloy. Such properties include excellent wear resistance, higher resistance to thermal shock, and higher resistance to oxidation at high temperature. A number of specimens were made up of appropriate design to provide the experimental materials. The transformation phase to a free carbon microstructure during graphitization under different conditions was then examined for the most successful experimental steels. Austenitising temperature of 920℃ and the following isothermal heat treatment of 750℃ at different holding times were used. Microstructures were examined by OM （optical microscopy） and SEM （scanning electron microscopy）. Furthermore, it was found that isothermal transformation at 750℃ for different soaking times produced a typical microstructure. Also, the amount of graphite increased with increasing isothermal heat treatment time. Heat treatment leading to supersaturation of iron with carbon was described and some of the consequences of the supersaturation were presented. Finally, the formation of the thermodynamically stable state of the graphite taken from the supersaturated solid solution was discussed.

关键词： Graphitization Carbon Microstructure Heat treatment Phase transformation

Dielectric characteristic of dichlorodifluoromethane(R12)gas and mixture with N_(2)/air as an alternative to SF_(6)gas

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High Voltage 2017年第3期2卷 205-210页

作者： Rahmat Ullah Abdur rashid Arooj rashid Faisal Khan Amjad Ali Department of Electrical Engineering CIIT AbbottabadPakistan

In this study,dichlorodifluoromethane(R12)gas and mixtures with nitrogen(N_(2))and air at different pressures and mixing ratios have been investigated and showed good alternative to SF_(6) gas in terms of high-voltage *** gases contain R12 gas,they offer good dielectric properties and possibility to be used in low-temperature *** effects and self-recoverability test have been *** strength under quasi-uniform field showed in the order of SF_(6)>R12>N_(2)>air in alternating current(AC),direct current(DC)and impulse was *** R12/N_(2)(80/20%)could reach over 0.90–0.95 times to that of SF_(6) gas at 50 lb/in^(2) at AC and R12/air(70/30%)gives 0.80–0.90 to SF_(6) gas.R12 gas presents brilliant *** optimal ratio to switch SF_(6) gas is R12/N_(2)(80/20%)and R12/air(70/30%)is based on the authors’experimental condition and setup.

关键词： characteristic mixture mixing

A Coprocessor Architecture for 80/112-bit Security Related Applications

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Computers, Materials & Continua 2023年第3期74卷 6849-6865页

作者： Muhammad rashid Majid Alotaibi Department of Computer Engineering Umm Al-Qura UniversityMakkah21955Saudi Arabia

We have proposed a flexible coprocessor key-authentication architecture for 80/112-bit security-related applications over GF(2m)field by employing Elliptic-curve Diffie Hellman(ECDH)*** flexibility,a serial input/output interface is used to load/produce secret,public,and shared keys ***,to reduce the hardware resources and to achieve a reasonable time for cryptographic computations,we have proposed a finite field digit-serial multiplier architecture using combined shift and accumulate ***,two finite-statemachine controllers are used to perform efficient control *** proposed coprocessor architecture over GF(2^(163))and GF(2^(233))is programmed using Verilog and then implemented on Xilinx Virtex-7 FPGA(field-programmable-gate-array)*** GF(2^(163))and GF(2^(233)),the proposed flexible coprocessor use 1351 and 1789 slices,the achieved clock frequency is 250 and 235MHz,time for one public key computation is 40.50 and 79.20μs and time for one shared key generation is 81.00 and 158.40μ***,the consumed power over GF(2^(163))and GF(2^(233))is 0.91 and 1.37mW,*** proposed coprocessor architecture outperforms state-of-the-art ECDH designs in terms of hardware resources.

关键词： Coprocessor design key-authentication wireless sensor nodes RFID ECDH FPGA

Novel Investigation of Stochastic Fractional Differential Equations Measles Model via the White Noise and Global Derivative Operator Depending on Mittag-Leffler Kernel

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 2289-2327页

作者： Saima rashid Fahd Jarad Department of Mathematics Government College UniversityFaisalabad38000Pakistan Department of Natural Sciences School of Arts and SciencesLebanese American UniversityBeirut11022801Lebanon Department of Mathematics Faculty of Arts and ScienceÇnkaya UniversityAnkara06790Turkey Department of Medical Research China Medical UniversityTaichung40402TaiwanChina

Because of the features involved with their varied kernels,differential operators relying on convolution formulations have been acknowledged as effective mathematical resources for modeling real-world *** this paper,we constructed a stochastic fractional framework of measles spreading mechanisms with dual medication immunization considering the exponential decay and Mittag-Leffler *** this approach,the overall population was separated into five ***,the descriptive behavior of the system was investigated,including prerequisites for the positivity of solutions,invariant domain of the solution,presence and stability of equilibrium points,and sensitivity *** included a stochastic element in every cohort and employed linear growth and Lipschitz criteria to show the existence and uniqueness of *** numerical simulations for various fractional orders and randomization intensities are illustrated.

关键词： Measles epidemic model Atangana-Baleanu Caputo-Fabrizio differential operators existence and uniqueness qualitative analysis Newton interpolating polynomial