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An analysis of the implementation of a hybrid renewable-energy system in a building by considering the reduction in electricity price subsidies and the reliability of the grid

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Clean Energy 2023年第5期7卷 1125-1135页

作者： Rahmat Adiprasetya Al Hasibi abdul haris Department of electrical engineering Universitas Muhammadiyah YogyakartaBantulYogyakarta 55183Indonesia

This article discusses the implementation of a hybrid renewable-energy system to satisfy the electricity requirements of a *** analysis is based on optimization calculations performed using HOMER *** components of the simulated hybrid renewable-energy system include photovoltaics,generators powered by biogas,converters and a *** input data utilized by the HOMER software are derived from measurements and *** electric load curve is obtained through measurements at the location of the case *** surveys,parameters pertaining to the components of the hybrid renewable-energy system were *** analysis was carried out using two sensitivity variables,namely electricity price and grid *** the basis of these two sensitivity variables,optimal system configuration,net present cost,energy cost,return on investment,internal rate of return and payback period were *** results of the analysis indicated that reducing subsidies,which results in higher electricity prices,provided opportuni-ties for economically competitive hybrid renewable-energy *** electricity prices of US$0.094/kWh,the return of investment and the internal rate of return increased to 15%and 19%,respectively,and the payback period decreased to 5.3 *** a hybrid renewable-energy system is implemented in regions with low grid reliability,the same phenomenon occurs.

关键词： renewable energy sensitivity analysis photovoltaic biogas electricity subsidy reliability of the grid

Intelligent approach of score-based artificial fish swarm algorithm(SAFSA)for Parkinson’s disease diagnosis

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International Journal of Intelligent Computing and Cybernetics 2022年第4期15卷 540-561页

作者： syed Haroon abdul Gafoor Padma Theagarajan Bharathiar University CoimbatoreIndia Department of Computer Applications Sona College of TechnologySalemIndia

Purpose-Conventional diagnostic techniques,on the other hand,may be prone to subjectivity since they depend on assessment of motions that are often subtle to individual eyes and hence hard to classify,potentially resulting in ***,early nonmotor signs of Parkinson’s disease(PD)can be mild and may be due to variety of other *** a result,these signs are usually ignored,making early PD diagnosis *** learning approaches for PD classification and healthy controls or individuals with similar medical symptoms have been introduced to solve these problems and to enhance the diagnostic and assessment processes of PD(like,movement disorders or other Parkinsonian syndromes).Design/methodology/approach-Medical observations and evaluation of medical symptoms,including characterization of a wide range of motor indications,are commonly used to diagnose *** quantity of the data being processed has grown in the last five years;feature selection has become a prerequisite before any *** study introduces a feature selection method based on the score-based artificial fish swarm algorithm(SAFSA)to overcome this ***-This study adds to the accuracy of PD identification by reducing the amount of chosen vocal features while to use the most recent and largest publicly accessible *** subset selection in PD detection techniques starts by eliminating features that are not relevant or *** to a few objective functions,features subset chosen should provide the best *** limitations/implications-In many situations,this is an Nondeterministic Polynomial Time(NPHard)*** method enhances the PD detection rate by selecting the most essential features from the *** begin,the data set’s dimensionality is reduced using Singular Value Decomposition dimensionality ***,Biogeography-Based Optimization(BBO)for feature selection;the weight value is a vital parameter for find

关键词： Parkinson disease dysphonia features Feature subset selection Score-based artificial fish swarm algorithm(SAFSA) Singular value decomposition(SVD) Classification

Generalized Statistical Convergence and Statistical Core of Double Sequences

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Acta Mathematica Sinica,English Series 2010年第11期26卷 2131-2144页

作者： Mohammad MURSALEEN Celal ■AKAN syed abdul MOHIUDDINE Ekrem SAVA■ Department of Mathematics Aligarh Muslim University Faculty of Education Inn University Department of Mathematics Istanbul Ticaret University

In this paper we extend the notion of A-statistical convergence to the （λ,μ）statistical convergence for double sequences x =（xjk）. We also determine some matrix transformations and establish some core theorems r... 详细信息

关键词： Double sequence statistical convergence matrix transformation core

Mechanical performance of cold mix asphalt containing cup lump rubber as a sustainable bio-modifier

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Journal of Traffic and Transportation Engineering(English Edition) 2024年第3期11卷 424-440页

作者： syed abdul Ghafar Muhammad Naqiuddin Mohd Warid Norhidayah abdul Hassan Zulfiqar Ali Jattak Ashraf Abdalla Mohammed Radwan Faculty of Civil Engineering Universiti Teknologi MalaysiaSkudai 81310Malaysia Department of Civil Engineering Balochistan University of Information TechnologyEngineering&Management SciencesQuettaPakistan Department of Civil Engineering Balochistan University of Engineering and TechnologyKhuzdarPakistan Department of Civil Engineering Faculty of EngineeringUniversity of TripoliTripoliLibya

The road construction industry aims to contribute to the protection of already compromised *** mix asphalt(CMA)is a measure initiated by the road industry to protect the environment and preserve *** having additional benefits,CMA has attracted little attention due to its inferior ***'s performance is enhanced using a sustainable binder bio-modifier,natural cup lump rubber(CLR)is one of *** study evaluated the tensile properties,rutting,moisture susceptibility,and adhesion properties of CLR-modified CMA(CMA-CR).The tensile property was enhanced by 26%due to CLR ***-CR had excellent rutting resistance of less than 2 mm rut depth at 10,000 load cycles,showing 70%improvement compared with conventional *** susceptibility evaluation indicated that CMA-CR had tensile strength ratio(TSR)value of 104%,satisfying the minimum 80%requirement of AASHTO *** also retained more than 96%bitumen *** moisture damage resistance was improved by 12%and 10%in terms of TSR and stripping,*** durability results revealed that the CMA-CR mixture prevented higher mass loss,representing 14%improvement compared with conventional CMA.

关键词： Cup lump rubber Cup lump modified cold mix asphalt Moisture damage Tensile property Rutting Digital imaging

Effect of displacement on resistance and capacitance of polyaniline film

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Chinese Physics B 2011年第4期20卷 204-208页

作者： Khasan Sanginovich Karimov Muhammad Tariq Saeed Fazal Ahmad Khalid syed abdul Moiz GIK Institute of Engineering Sciences and Technology Physical Technical Institute of Academy of Sciences Semiconductor Nano Processing Lab (SNPL) Department of Chemical and Material EngineeringHanyang University

This paper investigates the properties of displacement sensors based on polyaniline （PANI） films. About 1 wt% of PANI micropowder is mixed and stirred in a solution of 90 wt% water and 10 wt% alcohol at room temperature. The films of PANI axe deposited from solution by drop-casting on Ag electrodes, which are preliminary deposited on glass substrates. The thicknesses of the PANI films are in the range of 20 μm-80 μm. A displacement sensor with polyaniline film as an active material is designed and fabricated. The investigations showed that, on average, the AC resistance of the sensor decreases by 2 times and the capacitance accordingly increases by 1.6 times as the displacement changes in the range of 0 mm-0.5 mm. The polyaniline is the only active material of the displacement sensor. The resistance and capacitance of the PANI changes under the pressure of spring and elastic rubber, and this pressure is created by the downward movement of the micrometer.

关键词： polyaniline displacement sensor resistance and capacitance

State of Health Estimation of LiFePO_(4) Batteries for Battery Management Systems

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Computers, Materials & Continua 2022年第11期73卷 3149-3164页

作者： Areeb Khalid syed abdul Rahman Kashif Noor Ul Ain Ali Nasir Department of Electrical Engineering University of Engineering and TechnologyLahorePakistan Department of Electrical Engineering University of Central PunjabLahorePakistan

When considering the mechanism of the batteries,the capacity reduction at storage(when not in use)and cycling(during use)and increase of internal resistance is because of degradation in the chemical composition inside the *** optimize battery usage,a battery management system(BMS)is used to estimate possible aging effects while different load profiles are requested from the *** is specifically seen in a case when the vehicle is connected to the net(online through BMS).During this process,the BMS chooses the optimized load profiles based on the least aging effects on the battery *** major focus of this paper is to design an algorithm/model for lithium iron phosphate(LiFePO4)*** model of the batteries is based on the accelerated aging test data(data from the beginning of life till the end of life).The objective is to develop an algorithm based on the actual battery trend during the whole life of the *** the analysis of the test data,the complete trend of the battery aging and the factors on which the aging is depending on is identified,the aging model can then be recalibrated to avoid any differences in the production process during cell *** validation of the model was carried out at the end by utilizing different driving profiles at different C-rates and different ambient temperatures.A Linear and non-linear model-based approach is used based on statistical *** parameterization was carried out by dividing the data into small chunks and estimating the parameters for the individual ***-adaptive characteristic map using a lookup table was also *** nonlinear model was chosen as the best candidate among all other approaches for longer validation of 8-month data with real driving data set.

关键词： Aging model state of health lithium-ion cells battery management system state of charge battery modeling

Hajj Crowd Management Using CNN-Based Approach

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Computers, Materials & Continua 2021年第2期66卷 2183-2197页

作者： Waleed Albattah Muhammad haris Kaka Khel Shabana Habib Muhammad Islam Sheroz Khan Kushsairy abdul Kadir Department of Information Technology College of ComputerQassim UniversityBuraydahSaudi Arabia Electronic Section Universiti Kuala Lumpur British Malaysian InstituteMalaysia Department of Electrical Engineering Onaizah CollegesSaudi Arabia Department of Electrical and Computer Engineering International Islamic UniversityMalaysia

Hajj as the Muslim holy pilgrimage,attracts millions of humans to Mecca every *** to statists,the pilgrimage has attracted close to 2.5 million pilgrims in 2019,and at its peak,it has attracted over 3 million pilgrims in *** is considered as the world’s largest human *** makes one of the main concerns with regards to managing the large crowds and ensuring that stampedes and other similar overcrowding accidents are *** paper presents a crowd management system using image classification and an alarm system for managing the millions of crowds during *** image classification system greatly relies on the appropriate dataset used to train the Convolutional neural network(CNN),which is the deep learning technique that has recently attracted the interest of the research community and industry in varying applications of image classification and speech *** core building block of CNN is is a convolutional layer obtained by the getting CNN trained with patches bearing designated features of the trainee *** algorithm is implemented,using the Conv2D layers to activate the CNN as a sequential ***,creating a 2D convolution layer having 64 filters and drop out of 0.5 makes the core of a CNN referred to as a set of *** aim is to train the CNN model with mapped image data,and to make it available for use in classifying the crowd as heavily-crowded,crowded,semi-crowded,light crowded,and *** utility of these results lies in producing appropriate signals for proving helpful in monitoring the *** pilgrims from the photos will help the authorities to determine the number of people in certain *** results demonstrate the utility of agent-based modeling for Hajj pilgrims.

关键词： Crowd management CNN approach Hajj

An asymmetrical multilevel inverter with minimum voltage stress and fewer components for photovoltaic renewable-energy system

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Clean Energy 2024年第1期8卷 1-22页

作者： Rabail Memon Mukhtiar Ahmed Mahar abdul Sattar Larik syed Asif Ali shah Department of Electrical Engineering Mehran University of Engineering and TechnologyJamshoroPakistan

The enhanced power quality provided by multilevel inverters(MLIs)has made them more appropriate for medium-and high-power applications,including photovoltaic ***,a prevalent limitation involves the necessity for numerous switches and increased voltage stress across these switches,consequently increasing the overall system *** address these challenges,a new 17-level asymmetrical MLI with fewer components and low voltage stress is proposed for the photovoltaic *** innovative MLI configuration has four direct current(DC)sources and 10 *** on the trinary sequence,the proposed topology uses photovoltaics with boost converters and fuzzy logic controllers as its DC *** equations are used to calculate cru-cial parameters for this proposed design,including total standing voltage per unit(TSVPU),cost function per level(CF/L),component count per level(CC/L)and voltage stress across the *** comparison is conducted by considering switches,DC sources,TSVPU,CF/L,gate driver circuits and CC/L with other existing MLI *** analysis is carried out under various conditions,encompassing different levels of irradiance,variable loads and modulation *** reduce the total harmonic distortion of the suggested topology,the phase opposition disposition approach has been *** suggested framework is simulated in MATLAB®/Simulink®.The results indicate that the proposed topology achieves a well-distributed stress profile across the switches and has CC/L of 1.23,TSVPU of 5 and CF/L of 4.58 and 5.76 with weight coefficients of 0.5 and 1.5,*** values are not-ably superior to those of existing MLI *** results demonstrate that the proposed topology maintains a consistent output at varying irradiance levels with FLCs and exhibits robust performance under variable loads and diverse modulation ***,the total harmonic distortion achieved with phase opposition disposi

关键词： asymmetrical multilevel inverter photovoltaic system renewable energy component count per level cost function per level total standing voltage per unit phase opposition disposition technique

Gastric precancerous lesions are associated with gene variants in Helicobacter pylori -susceptible ethnic Malays

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World Journal of Gastroenterology 2013年第23期19卷 3615-3622页

作者： Sathiya Maran Yeong Yeh Lee Shuhua Xu Nur-Shafawati Rajab Norhazrini Hasan syed Hassan syed abdul Aziz Noorizan abdul Majid Bin Alwi Zilfalil Human Genome Center School of Medical Sciences Universiti Sains Malaysia16150 Kubang Kerian Malaysia Department of Medicine School of Medical Sciences Universiti Sains Malaysia16150 Kubang Kerian Malaysia Max Planck Independent Research Group on Population Genomics Chinese Academy of Sciences and Max Planck Society Partner Institute for Computational Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences200031 Shanghai China Department of Immunology School of Medical Sciences Universiti Sains Malaysia16150 Kubang Kerian Malaysia Department of Surgery School of Medical Sciences Universiti Sains Malaysia16150 Kubang Kerian Malaysia Department of Paediatrics School of Medical Sciences Universiti Sains Malaysia16150 Kubang Kerian Malaysia

AIM: To identify genes associated with gastric pre-cancerous lesions in Helicobacter pylori (H. pylori )susceptible ethnic Malays. METHODS: Twenty-three Malay subjects with H. pylori infection and gastric precancerous lesions identified during endoscopy were included as "cases". Thirtyseven Malay subjects who were H. pylori negative and had no precancerous lesions were included as "controls". Venous blood was collected for genotyping with Affymetrix 50K Xba1 kit. Genotypes with call rates 0.5 was considered as significant markers. RESULTS: Of the 23 H. pylori -positive subjects recruited, one sample was excluded from further analysis due to a low genotyping call rate. Of the 22 H. pylori positive samples, atrophic gastritis only was present in 50.0%, complete intestinal metaplasia was present in 18.25%, both incomplete intestinal metaplasia and dysplasia was present in 22.7%, and dysplasia only was present in 9.1%. SNPs rs9315542 (UFM1 gene), rs6878265 (THBS4 gene), rs1042194 (CYP2C19 gene) and rs10505799 (MGST1 gene) were significantly associated with atrophic gastritis, complete intestinal metaplasia, incomplete metaplasia with foci of dysplasia and dysplasia, respectively. Allele frequencies in "cases" vs "controls" for rs9315542, rs6878265, rs1042194 and rs10505799 were 0.4 vs 0.06, 0.6 vs 0.01, 0.6 vs 0.01 and 0.5 vs 0.02, respectively. CONCLUSION: Genetic variants possibly related to gastric precancerous lesions in ethnic Malays susceptible to H. pylori infection were identified for testing in subsequent trials.

关键词： Gastric precancerous lesions Gene polymorphisms Genome-wide association Helicobacter pylori Malays