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Congruent Feature Selection Method to Improve the Efficacy of Machine Learning-Based Classification in Medical Image Processing

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 357-384页

作者： mohd Anjum Naoufel Kraiem Hong Min Ashit Kumar Dutta Yousef ibrahim Daradkeh Department of Computer Engineering Aligarh Muslim UniversityAligarh202002India College of Computer Science King Khalid UniversityAbha61413Saudi Arabia School of Computing Gachon UniversitySeongnam13120Republic of Korea Department of Computer Science and Information Systems College of Applied SciencesAlMaarefa UniversityRiyadh13713Saudi Arabia Department of Computer Engineering and Information College of Engineering in Wadi AlddawasirPrince Sattam bin Abdulaziz UniversityAl-Kharj16273Saudi Arabia

Machine learning(ML)is increasingly applied for medical image processing with appropriate learning *** applications include analyzing images of various organs,such as the brain,lung,eye,etc.,to identify specific flaws/diseases for *** primary concern of ML applications is the precise selection of flexible image features for pattern detection and region *** of the extracted image features are irrelevant and lead to an increase in computation ***,this article uses an analytical learning paradigm to design a Congruent Feature Selection Method to select the most relevant image *** process trains the learning paradigm using similarity and correlation-based features over different textural intensities and pixel *** similarity between the pixels over the various distribution patterns with high indexes is recommended for disease ***,the correlation based on intensity and distribution is analyzed to improve the feature selection ***,the more congruent pixels are sorted in the descending order of the selection,which identifies better regions than the ***,the learning paradigm is trained using intensity and region-based similarity to maximize the chances of ***,the probability of feature selection,regardless of the textures and medical image patterns,is *** process enhances the performance of ML applications for different medical image *** proposed method improves the accuracy,precision,and training rate by 13.19%,10.69%,and 11.06%,respectively,compared to other models for the selected *** mean error and selection time is also reduced by 12.56%and 13.56%,respectively,compared to the same models and dataset.

关键词： Computer vision feature selection machine learning region detection texture analysis image classification medical images

Lignocellulosic Biocomposite Membranes for Air Filtration and Environmental Protection:A Review

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Journal of Renewable Materials 2025年第2期13卷 251-272页

作者： Abiodun Abdulhameed Amusa Anwar Johari Kamil Kayode Katibi ibrahim Garba Shitu Abdulrahman Oyekanmi Adeleke mohd Fairus mohd Yasin Muhammad Thalhah Zainal Center of Hydrogen Energy(CHE) Institute of Future Energy(IFE)Faculty of Chemical and Energy EngineeringUniversiti Teknologi Malaysia(UTM)Skudai81310Malaysia Department of Physics Faculty of ScienceUniversiti Putra MalaysiaUPM SerdangSerdang43400Malaysia Department of Agricultural and Biological Engineering Faculty of Engineering and TechnologyKwara State UniversityMalete23431Nigeria Department of Physics Faculty of Natural and Applied SciencesSule Lamido Universiti Kafin HausaKafin Hausa048Nigeria Institute of Nanoscience and Nanotechnology(INO2) Universiti Putra MalaysiaSerdang43400Malaysia Institute of Energy Infrastructure(IEI) Universiti Tenaga Nasional(UNITEN)Putrajaya CampusJalan Ikram-UnitenKajang43000Malaysia High-Speed Reacting Flow Laboratory(HiREF) Faculty of Mechanical EngineeringDepartment of Thermo-Fluids of Mechanical EngineeringUniversiti Teknologi MalaysiaSkudai81310Malaysia Department of Mechanical Precision Engineering(MPE) Malaysia-Japan International Institute of Technology(MJIIT)Universiti Teknologi MalaysiaKuala Lumpur54100Malaysia

The increasing severity of air pollution necessitates more effective and sustained air filtration ***,the desire for more environmentally friendly,sustainable materials with better filtering performance and less environmental impact drives the move away from conventional synthetic *** review presents lignocellulosic biocomposite(LigBioComp)membranes as an alternative to traditional synthetic *** focuses on their materials,fabrication,and functionalization techniques while exploring challenges and proposing methods for resourceful *** for their abundance and renewable nature,lignocellulosic materials consist of cellulose,hemicellulose,and *** applications can benefit from their antibacterial properties,large surface area,and remarkable mechanical *** membranes are fabricated through casting,electrospinning,and freeze-drying,with advancements in fabrication techniques enhancing their performance and *** is suggested to use solvent-free or low-solvent techniques such as Layer-by-Layer assembly to minimize environmental ***-drying and electrospinning with green solvents can be used for achieving specific membrane properties,though energy consumption should be *** dry-wet spinning and solvent casting processes *** groups,including carboxyl,hydroxyl,or amino groups,can significantly improve the membrane’s capacity to capture particulate *** etching or the precise deposition of nanoparticles can further optimize pore size and *** choice of chemicals and methods is critical in functionalization,with silane coupling agents,polyethyleneimine,and *** research should prioritize refining fabrication methods,advancing functionalization strategies,and conducting performance and recyclability assessments on hybrid and composite *** will enhance integrated systems and contribute to the developme

关键词： Lignocellulose biocomposites renewable materials sustainable membranes environmental protection particulate matter removal air filtration technology

Red tinted contact lenses on Ishihara test error scores in color deficient subjects:a pilot study

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International Journal of Ophthalmology(English edition) 2025年第3期18卷 462-468页

作者： Haliza Abdul Mutalib Sharanjeet Sharanjeet-Kaur Ong Yi Lin Bashirah Ishak mohdNorhafizun bin mohd Saman mohd Izzuddin Hairol Optometry&Vision Sciences Program Faculty of Health SciencesUniversiti Kebangsaan MalaysiaKuala Lumpur 50300Malaysia

AIM:To compare the Ishihara test errors scores of colour vision deficiency(CVD)subjects when wearing four different types of red-tinted contact lenses(RCL)that differ in their transmittance as determined using a ***:Six congenital CVD subjects volunteered to participate in this *** plates were used to determine the colour vision errors made,whereas Farnsworth-Munsell 100 Hue test was conducted to determine the total error scores(TES)and type of *** types of RCL(Types A,B,C and D)were inserted in the non-dominant eye and tested in a randomised manner by a masked *** scores in Ishihara test were determined at baseline without any contact lens and after wearing the four different *** subjects were then divided into two groups based on the mean ***:Repeated measures ANOVA with Greenhouse-Geisser corrections showed that there was a highly significant effect of RCL type on Ishihara error score[F(2.056,10.282)=30.214,P<0.001].Error scores with RCL Type B were significantly lower than errors made when no lens was worn,and with RCL Type C and Type D(all P<0.001).Error scores with RCL Type B were also lower than those made with RCL Type A,however,they were not significantly *** subjects with TES values less than 180,RCL type B showed the largest improvement in Ishihara error score(50%)compared to the other three *** type A showed the best performance in TES value of more than 180,with an improvement of 80%in Ishihara *** Type A has the lowest transmittance at the confusion wavelength(450-568 nm),followed by RCL Types B,D and ***:This study shows that RCL can improve Ishihara error *** with lower transmission at 450-568 nm and 90%transmittance beyond 637 nm are the most *** which could block more light between 550-580 nm are more effective for colour defectives with more severe colour defects.

关键词： anomalous trichromats colour vision deficiency contact lenses deutan protan

Superiority of Strontium-Doped Barium Titanate as an Electron Transport for Perovskite Solar Cells for Enhanced Efficiency and Thermal Stability

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Transactions of Tianjin University 2025年第01期31卷 42-63页

作者： Minhaz Mahmood Mohammad Tariqul Islam Md Samiul Islam Sakhr M.Sultan Kashfia Noor M.A.Islam K.Sopian Abdullah Alghafis mohd Adib ibrahim K.Sobayel Department of Electrical Electronic and Systems EngineeringUniversiti Kebangsaan Malaysia (UKM) Solar Energy Research Institute (SERI) Universiti Kebangsaan Malaysia (UKM) Department of Electrical Engineering Faculty of EngineeringUniversiti Malaya Department of Mechanical Engineering Universiti Teknologi Petronas Department of Mechanical Engineering College of EngineeringQassim University

This study presents a detailed comparative analysis of three electron transport layer（ETL） materials for perovskite solar cells（PSCs）,namely titanium dioxide（TiO2）,barium titanate（BaTiO3or BTO）,and strontium-doped barium titanate(Ba1-xSrxTiO3or BST),and their impact on the quantum efficiency（QE） and power conversion efficiency（PCE） of CH3NH3PbI3（MAPbI3） *** optimized structure demonstrates that devices utilizing BST as an ETL achieved the highest PCE of 29.85%,exhibiting superior thermal stability with the lowest temperature coefficient of-0.43%/*** temperature-induced degradation is comparable to that of commercially available silicon ***,BST-based ETLs show 29.50% and 26.48% higher PCE than those of TiO2-based and BTO-based *** enhanced internal QE and favorable current density-voltage（J-V） characteristics of BST compared with those of TiO2and BTO are attributed to its improved charge carrier separation,reduced recombination rates,and robust electrical characteristics under varied environmental ***,the electric field and generation rate of the BST-based ETLs show a more favorable distribution than those of the TiO2-based and BTO-based *** findings provide significant insights into the role of different ETLs in enhancing QE,indicating that BST is a superior ETL that enhances both the efficiency and stability of *** study contributes to the understanding of how perovskite-structured ETLs can be used to design and optimize highly efficient and stable photovoltaic devices.

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Preparation and Properties of Poly(vinyl alcohol)/Chitosan Blend Bio-nanocomposites Reinforced by Cellulose Nanocrystals

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Chinese Journal of Polymer Science 2014年第12期32卷 1620-1627页

作者： Susan Azizi Mansor bin Ahmad Nor Azowa ibrahim mohd Zobir Hussein Farideh Namvar Department of Chemistry Faculty of Science University Putra Malaysia Materials Synthesis and Characterization Laboratory Institute of Advanced Technology University Putra Malaysia Institute of Tropical Forestry and Forest Products Universiti Putra Malaysia Mashhad Branch Islamic Azad University

The aim of this paper is to report the effect of the addition of cellulose nanocrystals（CNCs） on the mechanical, thermal and barrier properties of poly（vinyl alcohol）/chitosan（PVA/Cs） bio-nanocomposites films prepared through the solvent casting process. The characterizations of PVA/Cs/CNCs films were carried out in terms of X-ray diffraction（XRD）, transmission electron microscopy（TEM）, scanning electron microscopy（SEM）, thermogravimetric analysis（TGA and DTG）, oxygen transmission rate（OTR）, and tensile tests. TEM and SEM results showed that at low loading levels, CNCs were dispersed homogenously in the PVA/Cs matrix. The tensile strength and modulus in films increased from 55.1 MPa to 98.4 MPa and from 395 MPa to 690 MPa respectively, when CNCs content went from 0 wt% to 1.0 wt%. The thermal stability and oxygen barrier properties of PVA/Cs matrix were best enhanced at 1.0 wt% of CNCs loading. The enhanced properties attained by incorporating CNCs can be beneficial in various applications.

关键词： Bio-nanocomposite Poly(vinyl alcohol)/chitosan Cellulose nanocrystals Mechanical properties Thermal properties.

Effects of rare-earth Pr3+-Dy3+ doping on structural,magnetic,optical and dielectric properties of Zn2Y hexaferrite

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Journal of Rare Earths 2025年第2期43卷 329-336页

作者： ibrahim Mohammed Mohamed E.El Sayed Ali Shawabkeh Mohammad N.Murshed Ibtehaj F.Alshdoukhi Zeinhom M.El-Bahy J.Mohammed A.K.Srivastava Department of Physics Lovely Professional University Department of Science Technology Waziri Umaru Federal Polytechnic Birnin Kebbi Physics Department Faculty of Science and ArtsKing Khalid University College of Engineering and Technology American University of the Middle East Department of Basic Sciences College of Science and Health ProfessionsKing Saud Bin Abdulaziz University for Health ScienceKing Abdullah International Medical Research Center Department of Chemistry Faculty of ScienceAl-Azhar University Department of Physics Faculty of ScienceFederal University Dutse

This study was conducted to investigate the properties of Pr3+-Dy3+doped Zn2Y-type hexaferrite for potential technological applications.X-ray diffraction（XRD）,Fourier transform infrared spectroscopy（FTIR） and field-emission scanning electron microscopy（FESEM） were used to analyze structural *** crystallite size in the synthesized samples varies between 57.54 and 68.57 *** vibrational bands at 400 and 600 cm-1,common to all hexaferrites,were confirmed through *** FESEM analysis reveals an agglomeration of magnetic grains and a decrease in the average grain size from 1.24 to1.06 μ*** M-H loops show that,with x values of 0.0,0.1,and 0.2,the saturation magnetization is determined to be 34.76,34.23,and 32.52 emu/g,*** corresponding coercivity values are21.24,30.39,and 33.99 ***-visible spectroscopy using Tauc theory reveals an increase in the optical band gap from 2.32 to 2.50 eV,indicating a tunable energy band structure by incorporating Pr3+-Dy3+*** dielectric constant increases,whereas AC conductivity decreases with increased Pr3+-Dy3+*** obtained results suggest the potential suitability of these materials for various technological applications.

关键词： Dielectric constant Magnetic hysteresis Optical band gap Pr3+-Dy3+ Rare earths Zn2Y-type hexaferrite

Copper oxide nanoparticles-loaded zeolite and its characteristics and antibacterial activities

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Journal of Materials Science & Technology 2017年第8期33卷 889-896页

作者： Abdullah A.Alswat Mansor bin Ahmad mohd Zobir Hussein Nor Azowa ibrahim Tawfik A.Saleh Department of Chemistry Faculty of ScienceUniversiti Putra MalaysiaSelangor 43400Malaysia Department of Chemistry Sana'a UniversityYemen Department of Chemistry King Fahcl University of Petroleum&MineralsDhahran 31261Saudi Arabia

In the present work, a simple and green co-precipitation method was used to prepare copper oxide-zeolite nanocomposites（CuO-zeolite NCs）. The weight ratio（1, 3, 5, 8 and 10 wt%） of CuO nanoparticles（NPs）loaded into zeolite was investigated to obtain the optimum CuO distribution for antibacterial *** prepared CuO-zeolite NCs were characterized by ultraviolet-visible（UV–vis） spectroscopy, Fourier transform infrared（FT-IR） spectroscopy, powder X-ray diffraction（XRD）, and energy dispersive X-ray fluorescence spectrometry（EDXRF）. The transmission electron microscopy（TEM） and field emission scanning electron microscopy（FE-SEM） revealed a uniform surface morphology of the CuO-zeolite *** UV–vis spectrum of NCs showed absorption peaks between 230 and 280 nm for nano-CuO in the XRD patterns, and new peaks appeared between（36.56？–38.83？） related to the CuO. At weight ratio less than 10 wt%, the CuO nanoparticles loaded to the zeolite exhibited spherical shapes with average particle diameter of 6.5 nm measured by TEM and XRD. Antibacterial activities were tested against Gram-negative and Gram-positive bacteria. The obtained results showed that, CuO-zeolite NCs with 8 wt% CuO nanoparticles had the highest antibacterial activities against Bacillus Subtilis B29 and Salmonella Choleraesuis ATCC10708, which can be attributed to the good dispersion of CuO NPs on the zeolite surface.

关键词： Copper oxide-zeolite Nanocomposites Antibacterial

Flapping wing micro-aerial-vehicle： Kinematics, membranes, and flapping mechanisms of ornithopter and insect flight

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Chinese Journal of Aeronautics 2016年第5期29卷 1159-1177页

作者： mohd Firdaus bin Abas Azmin Shakrine bin mohd Rafie Hamid bin Yusoff Kamarul Arifin bin Ahmad Department of Aerospace Engineering Faculty of Engineering Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia Faculty of Mechanical Engineering Universiti Teknologi MARA Pulau Pinang 13500 Permatang Pauh Pulau Pinang Malaysia

The application of biomimetics in the development of unmanned-aerial-vehicles （UAV） has advanced to an exceptionally small scale of nano-aerial-vehicles （NAV）, which has surpassed its immediate predecessor of micro-aerial-vehicles （MAV）, leaving a vast range of development possi- bilities that MAVs have to offer. Because of the prompt advancement into the NAV research devel- opment, the true potential and challenges presented by MAV development were never solved, understood, and truly uncovered, especially under the influence of transition and low Reynolds number flow characteristics. This paper reviews a part of previous MAV research developments which are deemed important of notification; kinematics, membranes, and flapping mechanisms ranges from small birds to big insects, which resides within the transition and low Reynolds number regimes. This paper also reviews the possibility of applying a piezoelectric transmission used to pro- duce NAV flapping wing motion and mounted on a MAV, replacing the conventional motorized flapping wing transmission. Findings suggest that limited work has been done for MAVs matching these criteria. The preferred research approach has seen bias towards numerical analysis as compared to experimental analysis.

关键词： Flapping wing kinematics Insect Membrane wing Micro-air-vehicle Ornithopter

High Gain of UWB Planar Antenna Utilising FSS Reflector for UWB Applications

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Computers, Materials & Continua 2022年第1期70卷 1419-1436页

作者： Ahmed Jamal Abdullah Al-Gburi Imran bin mohd ibrahim Zahriladha Zakaria Badrul Hisham Ahmad Noor Azwan bin Shairi Mohammed Yousif Zeain Department of Electronics and Computer Engineering(FKEKK) Center for Telecommunication Research and Innovation(CeTRI)Universiti Teknikal Malaysia Melaka(UTeM)Durian TunggalMalaccaMalaysia

In this paper,a high gain and directional coplanarwaveguide(CPW)-fed ultra-wideband(UWB)planar antenna with a new frequency selective surface(FSS)unit cells design is proposed for UWB *** proposed UWB antenna was designed based on the Mercedes artistic-shaped planar(MAP)*** antenna consisted of a circular ring embedded with three straight legs for antenna impedance bandwidth *** modelled FSS used the integration of a two parallel conductive metallic patch with a circular loop *** FSS provided a UWB stopband filter response covering a bandwidth of 10.5 GHz,for frequencies from 2.2 to 12.7 *** proposed FSS had a compact physical dimension of 5 mm×5 mm×1.6 mm,with a printed array of 19×19 FSS unit *** FSS unit cells were printed on only one side of the dielectric FR4 substrate and placed as a sandwich between the antenna and the reflector ground *** equivalent circuit configuration(ECC)was used to verify the FSS unit cell structure’s *** simulated results indicated that the UWB MAP antenna and FSS reflector provided a fractional bandwidth of 136%and a high gain of 11.5 dB at 8.5 GHz with an acceptable radiation efficiency of 89%.Furthermore,the gain was improved across the operating band and kept between 8.3 and 11.5 *** proposed antenna was in good agreement between theoretical and experimental results and offered a wide enough bandwidth for UWB and vehicle applications.

关键词： UWB MAP antenna stable gain FSS reflector ECC stopband response reflection phase