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Asian Pacific Journal of Tropical Biomedicine 2016年第1期6卷 71-75页

作者： John Yew Huat Tang mohd ikhsan khalid Syazana Aimi Che Abdullah Abu-Bakar Son Radu Department of Food Industry Faculty of Bioresources and Food Industry Universiti Sultan Zainal Abidin Tembila Campus Food Safety Research Centre Faculty of Food Science and Technology Universiti Putra Malaysia

Objective:To investigate antibiotic resistance profile and characterize Campylobacter jejuni(***) isolates using random amplified polymorphic DNA(RAPD) ***:Ninety eight *** isolates from farms and retail outlets were screened against 10 antibiotics commonly used clinically and agriculturally by using disk diffusion *** analysis was done to characterize 98 *** ***:Fifty-one percent of the isolates had multiple antibiotic resistance index 0.2 and *** indicated that the isolates in the vegetables were not from the high risk environment or extensive farming *** isolates found resistant towards penicillin G(93%),vancomycin(86%),ampicillin(35%),erythromycin(28%),gentamycin(4%),amikacin(3%),enrofloxacin(1%),norfloxacin(1%) and no resistance towards *** clustering analysis showed that the contamination of *** in vegetables was likely due to cross contamination at retail ***:*** contamination in vegetables at retail markets was due to cross *** finding proved that *** in small scale vegetables production was less expose towards antibiotic abuse.

关键词： Campylobacter jejuni Multiple antibiotic resistance index Antibiotic resistance RAPD analysis

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

Bendable tube-shaped supercapacitor based on reduced graphene oxide and Prussian blue coated carbon fiber yarns for energy storage

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Journal of Energy Chemistry 2018年第3期27卷 866-873页

作者： mohd.khalid Ana M.B.Honorato Department of Macromolecular Science and Engineering Case Western Reserve University

Carbon fiber yarns（CFY） are promising as a new type of flexible building blocks for the construction of flexible architectures for the energy storage applications. The main hurdle with CFY is how to make them high energy and power capable by using economically and environmentally viable materials. Here,we report reduced graphene oxide（r GO） and Prussian blue（PB） coated CFY, derived from a facile electrochemical process at room temperature for supercapacitor electrodes. The PB coated CFY and r GO coated CFY electrodes exhibit the excellent gravimetric capacitance of 339 F/g and 160.2 F/g, respectively, in aqueous KCl electrolyte in three-electrode cell configuration. When we coupled these electrodes inside the flexible plastic tube and separated by the electrolyte wet filter paper in order to construct flexible architecture, the resulting device delivers excellent specific energy of 52.1 Wh/kg and 26.5 Wh/kg with offering specific power of 3100 W/kg and 14400 W/kg respectively, under a wide operating potential of1.8 V with excellent rate capability. The device shows high tolerance towards bending, and retained its efficiency to the capacitance after being bent at an angle of 360° for 200 bending cycles.

关键词： Carbon fiber yarns Bendable supercapacitor Energy density Power density

Application of artificial intelligent systems for real power transfer allocation

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Journal of Central South University 2014年第7期21卷 2719-2730页

作者： Shareef Hussain Abd.khalid Saifulnizam Sulaiman Herwan mohd Mustafa Wazir mohd Faculty of Electrical and Built Environment Universiti Kebangsaan Malaysia Department of Electrical Power System Faculty of Electrical EngineeringUniversiti Teknologi Malaysia School of Electrical System Engineering University Malaysia Perlis (UniMAP)

The application of various artificial intelligent(AI) techniques,namely artificial neural network(ANN),adaptive neuro fuzzy interface system(ANFIS),genetic algorithm optimized least square support vector machine(GA-LSSVM) and multivariable regression(MVR) models was presented to identify the real power transfer between generators and *** AI techniques adopt supervised learning,which first uses modified nodal equation(MNE) method to determine real power contribution from each generator to *** the results of MNE method and load flow information are utilized to estimate the power transfer using AI *** 25-bus equivalent system of south Malaysia is utilized as a test system to illustrate the effectiveness of various AI methods compared to that of the MNE method.

关键词： artificial intelligence power tracing support vector machine power system deregulation

Mechanical characteristics of oil palm fiber reinforced thermoplastics as filament for fused deposition modeling(FDM)

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Advances in Manufacturing 2020年第1期8卷 72-81页

作者： mohd Nazri Ahmad Mohammad khalid Wahid Nurul Ain Maidin mohd Hidayat Ab Rahman mohd Hairizal Osman Izzati Fatin Alis@Elias Faculty of Mechanical and Manufacturing Engineering Technology Universiti Teknikal Malaysia Melaka.Hang Tuah JayaDurian Tunggal 76100MelakaMalaysia Centre for Smart System and Innovative Design Universiti Teknikal Malaysia MelakaHang Tuah JayaDurian Tunggal 76100MelakaMalaysia

Fibers are increasingly in demand for a wide range of polymer composite *** study^purpose was the development of oil palm fiber(OPF)mixed with the thermoplastic material acrylonitrile butadiene styrene(ABS)as a composite filament for fused deposition modeling(FDM).The mechanical properties of this composite filament were then *** is a fiber extracted from empty fruit bunches,which has proved to be an excellent raw material for *** cellulose content of OPF is 43%-65%,and the lignin content is 13%-25%.The composite lilament consists of OPF(5%,mass fraction)in the ABS *** fabrication procedure included alkalinizing,drying,and crushing the OPF to develop the *** OPF/ABS materials were prepared and completely blended to acquire a mix of 250 g of the material for the ***,the FLD25 filament extrusion machine was used to form the OPF/ABS composite into a *** composite filament then was used in an FDM-based 3D printer to print the ***,the printed specimens were tested for mechanical properties such as tensile and flexural *** results show that the presence of OPF had increased the tensile strength and modulus elasticity by approximately 1.9%and 1.05%,***,the flexural strength of the OPF/ABS composite had decreased by 90.6%compared with the virgin ***,the most significant outcome of the OPF/ABS composite was its suitability for printing using the FDM method.

关键词： Natural fibers Oil palm fiber(OPF) Fused deposition modeling(FDM) 3D printer Composite filament

Age factor affects reading acuity and reading speed in attaining text information

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International Journal of Ophthalmology(English edition) 2019年第7期12卷 1170-1176页

作者： Ai-Hong Chen Nursyairah mohd khalid Noor Halilah Buari Optometry Faculty of Health SciencesUniversiti Teknologi MARA

AIM: To investigate the effect of age on reading acuity and reading speed in attaining text information in healthy ***: Reading acuity, critical print size, reading speed and maximum reading speed were measured in groups of 40 children (8 to 12 years old), 40 teenagers (13 to 19 years old), 40 young adults (20 to 39 years old), and 40 adults (40 years old and above) using the Buari-Chen Malay Reading Chart [contextual sentences (CS) set and random words (RW) set] in a cross-sectional study ***: Reading acuity was significantly improved by 0.04 logMAR for both CS set and RW set from children to teenagers, then gradually worsened from young adults to adults (CS set: 0.06 logMAR;RW set: 0.08 logMAR). Critical print size for children showed a significant improvement in teenagers (CS set: 0.14 logMAR;RW set: 0.07 logMAR), then deteriorated from young adults to adults by 0.09 logMAR only for CS set. Reading speed significantly increased from children to teenagers,[CS set: 46.20 words per minute (wpm);RW set: 42.06 wpm], then stabilized from teenagers to young adults, and significantly reduced from young adults to adults (CS set: 28.58 wpm;RW set: 24.44 wpm). Increment and decrement in maximum reading speed measurement were revealed from children to teenagers (CS set: 39.38 wpm;RW set: 43.38 wpm) and from young adults to adults (CS set: 22.26 wpm;RW set: 26.31 wpm) ***: The reference of age-related findings in term of acuity and speed of reading should be incorporated in clinical practice to enhance reading assessment among healthy eyes population.

关键词： reading acuity critical print size readingspeed maximum reading speed age effect

A method for real power transfer allocation using multivariable regression analysis

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Journal of Central South University 2012年第1期19卷 179-186页

作者： Hussain Shareef Azah Mohamed Saifunizam Abd.khalid mohd Wazir Mustafa Faculty of Electrical Engineering and Built Environment Universiti Kebangsaan Malaysia43600 BangiMalaysia Faculty of Electrical Engineering Universiti Teknologi Malaysia81310 JohorMalaysia

A multivariable regression(MVR) approach is proposed to identify the real power transfer between generators and *** on solved load flow results,it first uses modified nodal equation method(MNE) to determine real power contribution from each generator to ***,the results of MNE method and load flow information are utilized to determine suitable regression coefficients using MVR model to estimate the power *** 25-bus equivalent system of south Malaysia is utilized as a test system to illustrate the effectiveness of the MVR output compared to that of the MNE *** error of the estimate of MVR method ranges from 0.001 4 to 0.007 ***,when compared to MNE method,MVR method computes generator contribution to loads within 26.40 ms whereas the MNE method takes 360 ms for the calculation of same real power transfer ***,MVR method is more suitable for real time power transfer allocation.

关键词： power tracing multivariable regression power systems deregulation

Barrientosiimonas humi ethyl acetate extract exerts cytotoxicity against MCF-7 and MDA-MB-231 cells via induction of apoptosis and cell cycle arrest

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Asian Pacific Journal of Tropical Biomedicine 2022年第2期12卷 87-98页

作者： Chiann Ying Yeoh Andi Rifki Rosandy Rozida mohd khalid Yoke Kqueen Cheah Faculty of Medicine and Health Sciences Universiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Faculty of Science and Technology Universiti Kebangsaan Malaysia43600 UKM BangiSelangorMalaysia

Objective:To elucidate the cytotoxic effect of the secondary metabolites of Barrientosiimonas humi(***)onMCF-7and MDA-MB-231 human breast cancer cells and itsunderlying mechanisms of ***:The extract was obtained from the fermentation of *** and fractionation of the crude extract was conducted via column *** of *** extract was determined by using MTT assay and real-time cellular *** changes,cell cycle profiles,mode of cell death,and caspase expressions of control and treated breast cancer cells were ***:The ethyl acetate extract isolated from *** was cytotoxicagainst MCF-7 and *** thedichloromethane(DCM)fractions,designatedasDCM-F2,exhibited the strongest activity among all the fractions and thereby was selected for further ***-F2 had selective cytotoxicity on target cells by inducing apoptosis,particularly in the early stage,and cell cycle *** cells caused inhibition of cell cycle progression at 72 h leading to a significant increase(P<0.05)in the G0/G1 ***-F2 treated MDA-MB-231 cells showed caspase-dependent apoptosis,whereas DCM-F2 treated MCF-7 cells showed a caspase-independent apoptosis *** compounds were successfully isolated from ***(Pro-Tyr)was the most cytotoxic and selective compound against MCF-7 ***:*** ethyl acetate extract exhibits significant cytotoxicity against MCF-7 and MDA-MB-231 cells via induction of apoptosis and cell cycle arrest.

关键词： Actinobacteria Barrientosiimonas humi Cytotoxic Apoptosis Cell cycle Breast cancer

Disseminated strongyloidiasis in an immunocompromised host:A case report

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Asian Pacific Journal of Tropical Biomedicine 2017年第6期7卷 587-590页

作者： Nurul Suhaiza Hassanudin Zubaidah Abdul Wahab khalid Ibrahim Fadzilah mohd Nor Microbiology Unit Department of PathologyHospital Sg.Buloh Director Office Hospital Sg.Buloh Microbiology Discipline Faculty of MedicineUniversiti Teknologi MARASg.Buloh CampusJalan Hospital Integrative Pharmacogenomics Institute (iPROMISE) Level 7FF3Universiti Teknologi MARAPuncak Alam Campus

Infections caused by Strongyloides stercoralis(***) in human are generally asymptomatic,however in immunocompromised individual,hyperinfection may develop with dissemination of larvae to extra-intestinal *** diagnosis could be easily missed due to asymptomatic presentation and insufficient exposure towards the infection itself,which may lead to low index of suspicion as a *** this report,a case of a Malaysian male with underlying diabetes mellitus,hypertension,cerebrovascular accident,bullous pemphigus and syndrome of inappropriate antidiuretic hormone secretion who initially complained of generalized body weakness and poor appetite without any history suggestive of sepsis is ***,he developed septicemic shock later,and *** larvae was incidentally found in the tracheal aspirate that was sent to look for acid fast *** of aggressive resuscitation,the patient succumbed due to pulmonary hemorrhage and acute respiratory distress *** was revealed that the current case has alarmed us via incidental finding of *** larvae in the tracheal aspirate,indicating that the importance of the disease should be emphasized in certain parts of the world and population respectively.

关键词： Disseminated strongyloidiasis Immunocompromised host Hyperinfection Strongyloides stercoralis

Nitrogen deposition and release pattern of slow release fertiliser made from urea-impregnated oil palm frond and rubberwood chips

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Journal of Forestry Research 2019年第6期30卷 2087-2094页

作者： Nur Nabilah Abdul khalid Zaidon Ashaari Ahmad Husni mohd.Hanif Azmy Mohamed Seng Hua Lee Department of Forest Production Faculty of ForestryUniversiti Putra Malaysia(UPM)43400 UPM SerdangSelangorMalaysia Institute of Tropical Forestry and Forest Products Universiti Putra Malaysia(UPM)43400 UPM SerdangSelangorMalaysia Department of Land Management Faculty of AgricultureUniversiti Putra Malaysia(UPM)43400 UPM SerdangSelangorMalaysia

The fertiliser industry faces a continuing challenge to improve the efficiency of their products,particularly of nitrogenous fertilisers,and to minimise adverse ***,a new slow release fertilizer,ureaimpregnated woodchips from tropical plant biomass(oil palm frond and rubberwood),was *** morphology of the impregnated woodchips was investigated by scanning electron microscopy and the success of impregnation of urea and nitrogen deposition into the woodchips was confirmed by energy dispersive X-ray *** nitrogen release patterns from impregnated woodchips fertiliser were simulated using a soil solution and distilled water as leaching solutions in a static condition for 768 h,release was slow and steady,although the release rate was lower in distilled water than in the soil solution.

关键词： Woodchips fertilizer Slow-release Urea Release pattern Nitrogen deposition