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AMC Integrated Multilayer Wearable Antenna for Multiband WBAN Applications

Computers, Materials & Continua 2022年第5期71卷 3227-3241页

作者： Iqra Aitbar Nosherwan Shoaib Akram Alomainy Abdul Quddious Symeon Nikolaou Muhammad ali imran Qammer H.Abbasi Research Institute for Microwave and Millimeter-Wave Studies(RIMMS)National University of Sciences and Technology(NUST) H-1244000IslamabadPakistan School of Electronic Engineering and Computer Science Queen Mary University of LondonLondonE14NSUK KIOS Research and Innovation Center of Excellence University of Cyprus2109NicosiaCyprus Frederick Research Center(FRC)and Department of Electrical Engineering Frederick University1036NicosiaCyprus James Watt School of Engineering University of GlasgowGlasgowG128QQU.K

In this paper,a compact,efficient and easy to fabricate wearable antenna integrated with Artificial Magnetic Conductor(AMC)is *** of slots and bevels/cuts in the rectangular monopole patch antenna yield a wide bandwidth along with band *** proposed antenna is backed with an AMC metasurface that changes the bidirectional radiation pattern to a unidirectional,thus,considerably reducing the Specific Absorption Ratio(SAR).The demonstrated antenna has a good coverage radiating away from the body and presents reduced radiation towards the body with a front-to-back ratio of 13 dB and maximum gain of 3.54 *** proposed design operates over a wide frequency band of 2.9 to 12 GHz(exceeding the designated 3.1−10.6 GHz Ultra-Wideband(UWB)band).The band notches were created using slots on the radiating patch in the sub-bands from 5.50 to 5.67 GHz and 7.16 to 7.74 *** overall dimensions of the structure are 33×33×6.75 *** antenna’s radiation performance increased considerably with the addition of the AMC *** SAR values for the antenna are reduced by 85.3%when the AMC is used and are 0.083 W/kg which is well below the FCC SAR *** simple design,miniaturized profile,low SAR and wide operating bands with multiple band notches make the presented antenna an appealing choice for several UWB wearable body area network(WBAN)applications.

关键词： Ultra-wideband(UWB) monopole antenna wearable antenna specific absorption ratio(SAR)

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Detection and Classification of Brain Tumor Based on Multilevel Segmentation with Convolutional Neural Network

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Journal of Biomedical Science and Engineering 2020年第4期13卷 45-53页

作者： Rafiqul Islam Shah imran Md. Ashikuzzaman Md. Munim ali khan Department of Computer Science and Engineering Dhaka University of Engineering & Technology Gazipur Bangladesh

Magnetic Resonance Imaging (MRI) is an important diagnostic technique for early detection of brain Tumor and the classification of brain Tumor from MRI image is a challenging research work because of its different shapes, location and image intensities. For successful classification, the segmentation method is required to separate Tumor. Then important features are extracted from the segmented Tumor that is used to classify the Tumor. In this work, an efficient multilevel segmentation method is developed combining optimal thresholding and watershed segmentation technique followed by a morphological operation to separate the Tumor. Convolutional Neural Network (CNN) is then applied for feature extraction and finally, the Kernel Support Vector Machine (KSVM) is utilized for resultant classification that is justified by our experimental evaluation. Experimental results show that the proposed method effectively detect and classify the Tumor as cancerous or non-cancerous with promising accuracy.

关键词： Segmentation Classification Non-Cancerous Tumor Cancerous Tumor Feature Extraction Convolutional Neural Network

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Economic outlook of rice crops in Pakistan:a time series analysis (1970-2015)

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Financial Innovation 2017年第1期3卷 162-170页

作者： Abdul Rehman Luan Jingdong Abbas ali Chandio Muhammad Shabbir imran Hussain College of Economics and Management Anhui Agricultural UniversityHefeiAnhuiChina College of Economics and Management Sichuan Agricultural UniversitySichuanYaan ShiSichuan ShengChina University of Kotli Azad Jammu&Kashmir KotliPakistan Allama Iqbal Open University Islamabad 44000Pakistan

Background:The basic objective of this study was to examine the relationship between the rice output,its production area,water availability,and agricultural gross domestic product(GDP)of *** time series data for 1970–2015 were collected from the National Food Security and Research,Economic Survey of Pakistan,and Pakistan Bureau of Statistics(various publications).Methods:Rice crop data were analyzed using the ordinary least square method and the augmented Dickey–Fuller *** interpreted using the Johansen cointegration ***:Our study revealed the existence of a long-standing relationship between rice output,its production area,and water availability with the agricultural GDP of *** results indicate that rice output and cultivated area have a significant and positive relationship with agricultural GDP,while water availability has a negative ***:The study suggests that the government of Pakistan should design new policies and funding schemes for developing and improving water availability.

关键词： Rice output Water availability Agricultural GDP OLS methods Aromatic basmati Rice And irrigation system

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Cluster-Based Group Mobility Support for Smart IoT

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Computers, Materials & Continua 2021年第8期68卷 2329-2347页

作者： Kanwal imran Nasreen Anjum Saeed Mahfooz Muhammad Zubair Zhahoui Yang Abdul Haseeb Malik Qazi Ejaz ali Madeeha Aman Department of Computer Science University of PeshawarPeshawar25121Pakistan Department of Computer Science Khushal Khan Khattak UniversityKarak27200Pakistan Department of Informatics King’s College LondonUK

IPv6 over Low Power Wireless Personal Area Network(6LoWPAN)connects the highly constrained sensor nodes with the internet using the IPv6 protocol.6LoWPAN has improved the scalability of the Internet of Things(IoTs)infrastructure and allows mobile nodes to send packets over the IEEE 802.15.4 wireless *** mobility managements schemes have been suggested for handling the registration and handover procedures in ***,these schemes have performance constraints,such as increased transmission cost,signalling overhead,registration,and handover *** address these issues,we propose a novel cluster-based group mobility scheme(CGM6)for *** reduce the signalling cost in the CGM6 scheme,we propose to combine the functions of the Authentication,Authorization and Accounting(AAA)server and Local Mobility Anchor(LMA)in AMAG6(AAA+MAG for 6LoWPAN).AMAG6 acts as a cluster head and exchange its information directly with its neighbouring AMAG6 during the ***,AMAG6 is responsible for the binding and authentication *** reduce the transmission cost,we also propose enhancements in registration and Handover *** performance of CGM6 is evaluated through extensive *** simulation results show that CGM6 has reduced the handoff latency by 32%,registration delay by 11%and transmission cost by 37%compared to the state-of-the-art mobility management schemes.

关键词： 6LoWPAN IoTs mobility management registration handover proxyMIPv6(PMIPv6)

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Fast Intra Mode Selection in HEVC Using Statistical Model

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Computers, Materials & Continua 2022年第2期70卷 3903-3918页

作者： Junaid Tariq Ayman Alfalou Amir Ijaz Hashim ali imran Ashraf Hameedur Rahman Ammar Armghan Inzamam Mashood Saad Rehman Department of Computer Science&Engineering HITEC UniversityTaxilaPakistan L@BISEN Equipe LSLYncrea Oust20 rue Cuirasse BretagneBrest29200France Department of IT and CS Pak-Austria FachhochschuleHaripurPakistan Department of Electrical Engineering Jouf UniversitySakakaKSA

Comprehension algorithms like High Efficiency Video Coding(HEVC)facilitates fast and efficient handling of multimedia *** algorithms involve various computation modules that help to reduce the size of content but preserve the same subjective viewing ***,the brute-force behavior of HEVC is the biggest hurdle in the communication of multimedia ***,a novel method will be presented here to accelerate the encoding process of HEVC by making early intra mode decisions for the ***,the HEVC applies 35 intra modes to every block of the frame and selects the best among them based on the RD-cost(rate-distortion).Firstly,the proposed work utilizes neighboring blocks to extract available information for the current *** this information is converted to the probability that tells which intra mode might be best in the current *** proposed model has a strong foundation as it is based on the probability rule-2 which says that the sum of probabilities of all outcomes should be ***,it is also based on optimal stopping theory(OST).Therefore,the proposed model performs better than many existing OST and classical *** proposed algorithms expedited the encoding process by 30.22%of the HEVC with 1.35%Bjontegaard Delta Bit Rate(BD-BR).

关键词： Statistical HEVC angular mode reduce time

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Tailoring the optical and magnetic properties of La-BaM hexaferrites by Ni substitution

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Chinese Physics B 2022年第2期31卷 570-575页

作者： Hafiz T.ali MRamzan M imran Arshad Nicola A.Morley M.Hassan Abbas Mohammad Yusuf Atta Ur Rehman Khalid Mahmood Adnan ali Nasir Amin MAjaz-un-Nabi Department of Mechanical Engineering College of EngineeringTaif UniversityTaif 21944Saudi Arabia Department of Physics Government College UniversityFaisalabadPakistan Department of Materials Science and Engineering University of SheffieldSir Robert Hadfield BuildingMapping St.SheffieldS13JDUK Department of Clinical Pharmacy College of PharmacyTaif UniversityTaif 21944Saudi Arabia

We investigate the impact of Ni insertion on the structural,optical,and magnetic properties of Ba_(0.8)La_(0.2)Fe_(12-x)Ni_(x)O_(19)hexaferrites(Ni substituted La-BaM hexaferrites).Samples were prepared using the conventional co-precipitation method and sintered at 1000℃for 4 hours to assist the crystallization *** analysis of the structure of the samples was carried out using an x-ray diffraction(XRD)*** M-type hexagonal structure of all the samples was confirmed using XRD *** lattice parameters a and c were found to be in the ranges of 5.8925±0.001 nm–5.8952±0.001 nm and 23.2123±0.001 nm–23.2219±0.001 nm,*** M-type hexagonal nature of the prepared samples was also indicated by the presence of corresponding FT-IR bands and Raman modes in the FT-IR and Raman spectra,*** results confirmed the successful synthesis of the samples according to the required stoichiometric ratio.A UV-vis spectrometer was used to record the absorption spectra of the prepared samples in the wavelength range of 200 nm–1100 *** optical energy bandgap of the samples was found to be in the range of 1.21 eV–3.39 *** M–H loops of the samples were measured at room temperature at an applied magnetic field range of 0 kOe–60 kOe.A high saturation magnetization of 99.92 emu/g was recorded in the sample with x=0 at a microwave operating frequency of 22.2 *** high value of saturation magnetization is due to the substitution of La3+ions at the spin-up(12k,2a,and 2b)*** Ni substitution is proven to be a potential candidate for the tuning of the optical and magnetic parameters of M-type ***,we suggest that the prepared samples are suitable for use in magneto-optic applications.

关键词： M-type hexaferrite nanostructured materials magnetic properties optical properties

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Potential of pectin-chitosan based composite films embedded with quercetin-loaded nanofillers to control meat associated spoilage bacteria

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Food Bioscience 2023年第3期53卷 655-666页

作者： Syed Muhammad Afroz ali Taskeen Niaz Anas Munir Ramla Shahid Saima Shabbir Tayyaba Noor Muhammad imran Department of Biosciences Faculty of SciencesCOMSATS University IslamabadPark RoadIslamabadPakistan Department of Materials Science and Engineering Institute of Space TechnologyIslamabad44000Pakistan School of Chemical and Materials Engineering(SCME) National University of Sciences and Technology(NUST)IslamabadPakistan

Increasing consumer demands for healthy,minimally processed,contamination-free food with extended shelf life have exerted pressure on the food industry to search for more effective and biodegradable packaging materials against spoilage ***-chitosan based nanocomposite films were developed and evaluated for the impacts of antimicrobial-loaded nanofillers[quercetin-loaded nano-liposomes(QNLs)]on the physico-mechanical,thermal,and antibacterial properties against meat-associated spoilage *** were observed with an average size of 191±7 nm by dynamic light scattering with a negative zeta-potential value of-37±5.7 *** electron microscopy revealed round and smooth surface morphology of *** spectroscopic analyses confirmed the encapsulation of quercetin in liposomes via weak electrostatic or hydrophobic *** addition of nanofillers in composite films increased the tensile strength(9.74±0.26 MPa)and Young’s modulus(24.17±0.64 MPa)of the nano-active films as compared to active films(2.49±0.02 MPa and 5.04±0.04 MPa),***,opacity(3.10±0.04)and moisture content(31.03%±1.81%)values of nano-active films were lesser as compared to non-active films(5.35%±0.07%and 84.24%±0.45%respectively)owing to the hydrophobic nature of *** analyses performed by TGA and DSC confirmed the thermal stability of nano-active ***-active films exhibited excellent antimicrobial potential(spot-on-lawn and quantitative food application assays)against multidrug-resistant meat pathogens including Escherichia coli,Listeria monocytogenes and Salmonella ***,pectin-chitosan based nano-active films have promising applications for the preservation of meat products from spoilage bacteria.

关键词： Nano-active packaging Pectin Chitosan Quercetin Nanoliposomes Antimicrobial films

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Boosting Achene Yield and Yield Related Traits of Sunflower Hybrids through Boron Application Strategies

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American Journal of Plant Sciences 2015年第11期6卷 1752-1759页

作者： imran khan Shakeel Ahmad Anjum Rashad Waseem khan Qardri Muqarrab ali Muhammad Umer Chattha Muhammad Asif Department of Agronomy University of Agriculture Faisalabad Pakistan Institute of Horticultural Sciences University of Agriculture Faisalabad Pakistan Department of Agronomy Muhammad Nawaz Shareef University of Agriculture Multan Pakistan

Effects of different boron (B) application methods on growth and yield of sunflower hybrids were checked out at Agronomic Research Farm, University of Agriculture, Faisalabad, Pakistan during spring, 2013. Field experiment was conducted by considering three sunflower hybrids viz., Patron 551, Patron 851 and S-278 along with different methods of B application i.e. no B application, seed treatment @ 0.05% B, soil B application @ 2 kg·ha-1 at sowing, soil B application @ 2 kg·ha-1 at ray floret stage and foliar application of B @ 200 mg·L-1 at ray floret stage. Uttermost plant height (150.78 cm), the number of leaves per plant (22.67) and stem diameter (1.62 cm) were accomplished when boron was soil applied @ 2 kg·ha-1 at sowing. Significantly higher head diameter (18.30 cm), number of achene per head (1266.44), 1000-achene weight (43.17 g) achene yield (2039.33 kg·ha-1), biological yield (9223.11 kg·ha-1) and harvest index (22.10%) were registered when boron was foliar applied @ 200 mg·L-1 at ray floret stage. Among sunflower hybrids, Patron 551 produced significantly higher growth and yield attributes as compared with Patron 851 and S-278 hybrids. This study suggested that the selection of Patron 551 hybrid with practicing boron foliar application @ 200 mg·L-1 at ray floret stage could be helpful in achieving the sunflower crop genetic potential.

关键词： Boron Application Methods Sunflower Hybrids Biological Yield Achene Yield Growth and Yield Attributes

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Hybrid Metamodeling/Metaheuristic Assisted Multi-Transmitters Placement Planning

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Computers, Materials & Continua 2021年第7期68卷 569-587页

作者： Amir Parnianifard MuhammadSaadi Manus Pengnoo Muhammad ali imran Sattam Al Otaibi Pruk Sasithong Pisit Vanichchanunt Tuchsanai Polysuwan Lunchakorn Wuttisittikulkij Wireless Communication Ecosystem Research Unit Chulalongkorn UniversityBangkok10330Thailand Department of Electrical Engineering University of Central PunjabLahorePakistan School of Engineering University of GlasgowGlasgowG128QQUK Head-of-Innovation-and-Entrepreneurship-Center College of EngineeringTaif UniversityTaifKSA Department of Electrical and Computer Engineering King Mongkut University of Technology North BangkokBangkokThailand Department of Electrical Engineering Siam UniversityBangkokThailand

With every passing day,the demand for data traffic is increasing,and this urges the research community not only to look for an alternating spectrum for communication but also urges radio frequency planners to use the existing spectrum *** sizes are shrinking with every upcoming communication generation,which makes base station placement planning even more complex and *** order to make the next-generation cost-effective,it is important to design a network in such a way that it utilizes the minimum number of base stations while ensuring seamless coverage and quality of *** paper aims at the development of a new simulation-based optimization approach using a hybrid metaheuristic and metamodel applied in a novel mathematical formulation of the multi-transmitter placement planning(MTPP)*** first develop a new mathematical programming model for MTPP that is flexible to design the locations for any number of *** solve this constrained optimization problem,we propose a hybrid approach using the radial basis function(RBF)metamodel to assist the particle swarm optimizer(PSO)by mitigating the associated computational burden of the optimization *** evaluate the effectiveness and applicability of the proposed algorithm by simulating the MTPP model with two,three,four and five transmitters and estimating the Pareto front for optimal locations of *** quantitative results show that almost maximum signal coverage can be obtained with four transmitters;thus,it is not a wise idea to use higher number of transmitters in the ***,the limitations and future works are discussed.

关键词： Simulation-optimization radial basis function particle swarm optimization multi-transmitter placement

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Prevalence of Anemia in Patients with COPD and Its Potential Impact on Morbidity of COPD Patients

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International Journal of Clinical Medicine 2014年第8期5卷 452-458页

作者： Shaheena Parveen imran Rangreze Syed Nisar Ahmad Showkat ali Mufti Shehla Shafi khan Armed Force Hospital Southern Region Khamis Mushayt KSA Department of Medicine King Khalid University Abha KSA Department of Medicine Sher-i-Kashmir Institute of Medical Sciences Soura India Departmrent of Medical Oncology Sher-i-Kashmir Institute of Medical Sciences Soura India Departmrnt of Gastroenterology Sher-i-Kashmir Institute of Medical Sciences Soura India

Background: Although COPD is traditionally associated with polycythemia, the systemic inflammation that is now recognized as a feature of COPD makes it a possible cause of Anemia of Chronic Disease (ACD). Preliminary evidences suggest that anemia in COPD may be more prevalent than expected occurring in 10% - 15% of patients. While in states like chronic heart failure and renal insufficiency, anemia has been extensively studied;little attention has been given to it in COPD. Objectives: To see the prevalence of anemia in patients with COPD and its potential impact on morbidity of COPD patients. Design and Setting: A university hospital-based cross-sectional study in Kashmir, India. Methods: Two hundred patients (119 males and 81 females) with spirometery documented COPD were evaluated for frequency of anemia. In addition to routine investigations, erythropoietin levels were done in a subgroup of patients. Results: A total of 36 cases (20 males and 16 females) of anemia were detected giving a frequency of 18%. Normocytic normochromic type of anemia was present in 32 (88.89%) patients while the rest had normocytic hypochromic type of anemia. Majority of patients were in GOLD stage 11 and had decreased serum iron, transferrin saturation and TIBC. Erythropoietin levels were significantly raised in anemic COPD patients compared to non-anemic COPD patients. The various factors significantly associated with anemia were: No. of exacerbations of COPD, No. of hospital admissions, BMI and erythropoietin levels. Conclusion: Anemia occurs frequently in patients of COPD and is associated with increased morbidity in the form of No. of exacerbations and hospital admissions. Correcting anemia in these patients may improve their clinical outcome.

关键词： COPD Anemia

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