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Hyperspectral anomaly detection:a performance comparison of existing techniques

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International Journal of Digital Earth 2022年第1期15卷 2078-2125页

作者： Noman Raza Shah Abdur Rahman M.Maud Farrukh aziz Bhatti muhammad Khizer Ali Khurram Khurshid Moazam Maqsood muhammad Amin iVISION Lab Electrical Engineering DepartmentInstitute of Space TechnologyIslamabadPakistan AI Enabling Technologies Lab Center of Excellence in Artificial IntelligenceBahria UniversityIslamabadPakistan Department of Electrical and Computer Engineering Pak-Austria Fachhochschule:Institute of Applied Sciences and TechnologyHaripurPakistan Avionics Engineering Department Institute of Space TechnologyIslamabadPakistan

Anomaly detection in Hyperspectral Imagery(HSI)has received considerable attention because of its potential application in several *** anomaly detection algorithms for HSI have been proposed in the literature;however,due to the use of different datasets in previous studies,an extensive performance comparison of these algorithms is *** this paper,an overview of the current state of research in hyperspectral anomaly detection is presented by broadly dividing all the previously proposed algorithms into eight different *** addition,this paper presents the most comprehensive comparative analysis to-date in hyperspectral anomaly detection by evaluating 22 algorithms on 17 different publicly available *** indicate that attribute and edge-preserving filtering-based detection(AED),local summation anomaly detection based on collaborative representation and inverse distance weight(LSAD-CR-IDW)and local summation unsupervised nearest regularized subspace with an outlier removal anomaly detector(LSUNRSORAD)perform better as indicated by the mean and median values of area under the receiver operating characteristic(ROC)***,this paper studies the effect of various dimensionality reduction techniques on anomaly *** indicate that reducing the number of components to around 20 improves the performance;however,any further decrease deteriorates the performance.

关键词： Anomaly detection algorithms hyperspectral imagery deep learning dimensionality reduction

Effect of iridium loading on HZSM-5 for isomerization of n-heptane

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Journal of Natural Gas Chemistry 2011年第5期20卷 477-482页

作者： Herma Dina Setiabudi Sugeng Triwahyono Aishah Abdul Jalil Nur Hidayatul Nazirah Kamarudin muhammad Arif Ab aziz Department of Chemical Engineering Faculty of Chemical Engineering Universiti Teknologi Malaysia Ibnu Sina Institute for Fundamental Science Studies Faculty of Science Universiti Teknologi Malaysia

The effect of iridium loading on the properties and catalytic isomerization of n-heptane over Ir-HZSM-5 is studied. Ir-HZSM-5 was prepared by impregnation method and subjected to isomerization process in the presence of flowing hydrogen gas. XRD and BET studies show that the presence of iridium stabilizes the crystalline structure of HZSM-5, leading to more ordered framework structure and larger surface area. TGA and FTIR results substantiate that iridium species interacts with OH group on the surface of HZSM-5. Pyridine FT-IR study verifies the interaction between iridium and surface OH group slightly increased the Bro¨nsted and Lewis acid sites without changing the lattice structure of HZSM-5. The presence of iridium and the increase of strong Lewis acid sites on HZSM-5 were found to bring an increase about 4.1%, 33.2% and 11.8% in conversion, selectivity and yield of n-heptane isomerization, respectively.

关键词： Ir-HZSM-5 n-heptane isomerization Lewis acid sites protonic acid sites

Effect of seedling age and water depth on morphological and physiological aspects of transplanted rice under high temperature

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第5期6卷 389-395页

作者： KHAKWANI Abdul aziz SHIRAISHI Masaaki ZUBAIR muhammad BALOCH Mohammad Safdar NAVEED Khalid AWAN Inayatullah Agricultural Research Institute Dera Ismail Khan NWFP PakistanJapan International Cooperation Agency Tsukuba International Centre Tsukuba Ibaraki JapanAgricultural Research Institute Dera Ismail Khan NWFP PakistanAgricultural Research Institute Dera Ismail Khan NWFP PakistanAgricultural Research Institute Dera Ismail Khan NWFP PakistanFaculty of Agriculture Gomal University Dera Ismail Khan NWFP Pakistan

To study the effect of high temperature, rice seedlings 20, 30, 40 and 50 d were kept at 5, 10, 15 and 20 cm water depth in a water pool. Meteorological findings indicated that water temperature varied up to 10 cm but became stable below this depth. Deep water inflicted higher tiller mortality, minimal increase in dry weight of aerial parts and leaf area, decrease in root length, and decrease in root dry weight especially at 20 cm water depth and produced an unbalanced T/R ratio (top versus root dry weight). However, deep water tended to increase plant length. These parameters, however, excel in shallow water. Older seedlings, with the exception of root dry weight, could not perform well compared to young seedlings in all physiological and morphological aspects. The study revealed that seedlings, particularly young ones, stand well in shallow water and can cope with high temperature.

关键词： Rice High temperature Seedling age Water depth

Sustainable Learning of Computer Programming Languages Using Mind Mapping

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Intelligent Automation & Soft Computing 2023年第5期36卷 1687-1697页

作者： Shahla Gul muhammad Asif Zubair Nawaz muhammad Haris aziz Shahzada Khurram muhammad Qaiser Saleem Elturabi Osman Ahmed Habib muhammad Shafiq Osama E.Sheta Department of Computer Science National Textile University Faisalabad37610Pakistan Department of Data Science University of the PunjabLahore54590Pakistan Department of Mechanical Engineering University of SargodhaSargodha40100Pakistan Faculty of Computing The Islamia University of BahawalpurBahawalpur63100Pakistan College of Computer Science and Information Technology Al Baha UniversityAl Baha1988Saudi Arabia Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea College of Science Zagazig UniversityZagazig44511Egypt

In the current era of information technology,students need to learn modern programming languages efﬁ*** art of teaching/learning program-ming requires many logical and conceptual *** it’s a challenging task for the instructors/learners to teach/learn these programming languages effectively and efﬁ*** mapping is a useful visual tool for establishing ideas and connecting them to solve *** research proposed an effective way to teach programming languages through visual *** experimental study uses a mind mapping tool to teach two programming environments:Text-based Programming and Blocks-based *** performed the experiments with one hundred and sixty undergraduate students of two public sector universities in the Asia Paciﬁc *** different instructional approaches,including block-based language(BBL),text-based languages(TBL),mind map with text-based language(MMTBL)and mind mapping with block-based(MMBBL)are used for this *** results show that instructional approaches using a mind mapping tool to help students solve given tasks in their critical thinking are more effective than other instructional techniques.

关键词： Text programming blocks programming novice programmer

Zinc oxide nanoparticles accelerate the healing of methicillin-resistant Staphylococcus aureus(MRSA)-infected wounds in rabbits

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Asian Pacific Journal of Tropical Biomedicine 2023年第11期13卷 488-496,I0002页

作者： muhammad Asif Ayesha Safdar Chaudhry Ambreen Ashar Hamad Bin Rashid muhammad Hassan Saleem Hassaan Bin Aslam Abdul aziz Department of Veterinary Surgery University of Veterinary and Animal SciencesLahorePunjabPakistan TECS Department Wilson College of TextilesNC State UniversityRaleigh 27606USA Department of Veterinary Medicine University of Veterinary and Animal SciencesLahorePunjabPakistan Institute of Microbiology University of Veterinary and Animal SciencesLahorePunjabPakistan Department of Veterinary Clinical Sciences University of PoonchRawalakot 12350Pakistan

Objective:To synthesize zinc oxide nanoparticles(ZnONPs)and evaluate their antibacterial and wound healing effects against wounds infected with methicillin-resistant Staphylococcus aureus(MRSA).Methods:ZnONPs were prepared by sol-gel method and characterized by X-ray diffraction(XRD)analysis and scanning electron microscopy(SEM).A total of 18 rabbits were divided into three groups:the ZnONPs group,the gentamicin group and the control group.A wound of 3 cm^(2) was inflicted on each rabbit and contaminated with MRSA *** was started from the fourth day *** healing,microbiological analysis,and histopathological analysis were performed to assess the efficacy of ZnONPs ***:XRD analysis confirmed the hexagonal wurtzite structure of the ZnONPs with an average crystallite size of 29.23 *** revealed discoid-shaped ZnONPs with a rough surface and an average size of 48.36 ***-dispersive X-ray analysis confirmed the purity of ***,the particle size ranged from 100-700 nm with a high agglomeration *** with ZnONPs promoted MRSA-infected wound *** addition,ZnONPs showed a good antibacterial effect as evidenced by a dose-dependent increase in the zone of ***:ZnONPs accelerate the healing of MRSA-infected ***,it can be explored for the treatment of MRSA infection.

关键词： MRSA Wound healing ZnO Nanoparticles Ointment

Spatio-Temporal Dynamics and Structure Preserving Algorithm for Computer Virus Model

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Computers, Materials & Continua 2021年第7期68卷 201-211页

作者： Nauman Ahmed Umbreen Fatima Shahzaib Iqbal Ali Raza muhammad Rafiq muhammad aziz-ur-Rehman Shehla Saeed Ilyas Khan Kottakkaran Sooppy Nisar Department of Mathematics and Statistics The University of LahoreLahorePakistan Department of Mathematics University of Management and TechnologyLahorePakistan Department of Mathematics National College of Business Administration and EconomicsLahorePakistan Department of Mathematics Faculty of SciencesUniversity of Central PunjabLahorePakistan Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh72915Vietnam Department of Mathematics College of Arts and Sciences at Wadi AldawaserPrince Sattam Bin Abdulaziz UniversityAlkharjSaudi Arabia

The present work is related to the numerical investigation of the spatio-temporal susceptible-latent-breaking out-recovered(SLBR)epidemic *** describes the computer virus dynamics with vertical transmission via the *** these types of dynamics models,the absolute values of the state variables are the fundamental requirement that must be fulfilled by the numerical *** taking into account this key property,the positivity preserving algorithm is designed to solve the underlying SLBR ***,the state variables associated with the phenomenon,represent the computer nodes,so they must take in ***,the continuous system(SLBR)acquires two steady states i.e.,the virus-free state and the virus existence *** stability of the numerical design,at the equilibrium points,portrays an exceptional aspect about the propagation of the *** designed discretization algorithm sustains the stability of both the steady *** computer simulations also endorse that the proposed discretization algorithm retains all the traits of the continuous SLBR model with spatial *** stability and consistency of the proposed algorithm are verified,*** the facts are also ascertained by numerical simulations.

关键词： Spatio-temporal computer virus model discretization positive solution computer simulations

An Ensemble of Optimal Deep Learning Features for Brain Tumor Classification

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Computers, Materials & Continua 2021年第11期69卷 2653-2670页

作者： Ahsan aziz muhammad Attique Usman Tariq Yunyoung Nam muhammad Nazir Chang-Won Jeong Reham R.Mostafa Rasha H.Sakr Department of Computer Science HITEC UniversityTaxilaPakistan College of Computer Engineering and Sciences Prince Sattam Bin Abdulaziz UniversityAl-KhrajSaudi Arabia Department of ICT Convergence Soonchunhyang UniversityAsanKorea Medical Convergence Research Center Wonkwang UniversityIksanKorea Department of Information Systems Faculty of Computers and Information SciencesMansoura UniversityMansouraEgypt Department of Computer Science Faculty of Computers and Information SciencesMansoura UniversityMansouraEgypt

Owing to technological developments,Medical image analysis has received considerable attention in the rapid detection and classification of *** brain is an essential organ in *** tumors cause loss of memory,vision,and *** 2020,approximately 18,020 deaths occurred due to brain *** cases can be minimized if a brain tumor is diagnosed at a very early *** vision researchers have introduced several techniques for brain tumor detection and ***,owing to many factors,this is still a challenging *** challenges relate to the tumor size,the shape of a tumor,location of the tumor,selection of important features,among *** this study,we proposed a framework for multimodal brain tumor classification using an ensemble of optimal deep learning *** the proposed framework,initially,a database is normalized in the form of high-grade glioma(HGG)and low-grade glioma(LGG)patients and then two pre-trained deep learning models(ResNet50 and Densenet201)are *** deep learning models were modified and trained using transfer ***,the enhanced ant colony optimization algorithm is proposed for best feature selection from both deep *** selected features are fused using a serial-based approach and classified using a cubic support vector *** experimental process was conducted on the BraTs2019 dataset and achieved accuracies of 87.8%and 84.6%for HGG and LGG,*** comparison is performed using several classification methods,and it shows the significance of our proposed technique.

关键词： Brain tumor data normalization transfer learning features optimization features fusion

New Discovery of Hipparion theobaldi Skull from the Late Miocene of Padhri,District Jhelum,Punjab,Pakistan and Associated Mammalian Fossil Assemblage

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Acta Geologica Sinica(English Edition) 2022年第4期96卷 1150-1165页

作者： Khizar SAMIULLAH Omer DRAZ Riffat YASIN Bilal RASOOL Hafiz muhammad ISHAQ muhammad HARIS aziz Rana MEHROZ FAZAL Shakila NAZ Tehreem RAZA Romesa NIAZI Department of Zoology Ghazi UniversityDera Ghazi Khan 32200Pakistan Department of Zoology Government College UniversityFaisalabad 3800Pakistan Department of Fisheries and Aquaculture Faculty of Veterinary and Animal SciencesMNSUAMultan 06005Pakistan Dragon Animal Care Center Doha 00000Qatar

A fossil-bearing locality near Padhri village,Dhok Pathan,55 km away from the tehsil Dina,Jhelum District,in the Potwar Plateau,Middle Siwaliks,Punjab,northern Pakistan,is significantly rich in mammalian *** site has provided an abundant mammalian fossil fauna of Late Miocene age from the Dhok Pathan Formation(Fm.).The recovered material belongs to four families:Equidae(horses),Rhinocerotidae(rhinos),Bovidae(cows),and Suidae(pigs).We discovered a new skull of hipparionine Hipparion theobaldi from this locality along with 22 specimens from the associated assemblage of fossil *** recovered material includes seven other species:the aceratheriine Chilotherium intermedium,boselaphines Tragoportax punjabicus,Selenoportax vexillarius,Pachyportax latidens,the antelope Gazella lydekkeri and suinine Propotamochoerus *** specimens are isolated teeth,fragments of maxilla,mandibles and horn *** Dhok Pathan *** generally composed of claystone,siltstone and sandstone beds and,based on the mammalian fauna,the Padhri fossil locality is dated as Late ***99 s formation was deposited in a subtropical paleoenvironment and the predominance of fossil bovids indicates extremely moist conditions with small but frequent standing water bodies.

关键词： vertebrate paleontology mammals fossil horses Dhok Pathan Formation Siwaliks Punjab

Prediction of promiscuous T cell epitopes in RNA dependent RNA polymerase of Chikungunya virus

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Asian Pacific Journal of Tropical Medicine 2017年第8期10卷 825-829页

作者： Yasir Waheed Sher Zaman Safi Muzammil Hasan Najmi Hafsa aziz muhammad Imran Foundation University Medical College Foundation University IslamabadDHA-I Islamabad(44000)Pakistan Interdisciplinary Research Centre in Biomedical Materials(IRCBM) COMSATS Institute of Information TechnologyLahore CampusLahorePakistan Nuclear Medicine Oncology and Radiotherapy Institute Islamabad Islamabad(44000)Pakistan Department of Medical Laboratory Sciences(DMLS) Faculty of Health and Allied Sciences(FHAS)Imperial College of Business Studies(ICBS)LahorePakistan Department of Microbiology University of Health SciencesLahorePakistan

Objective: To explore RNA dependent RNA polymerase of Chikungunya virus(CHIKV) and develop T cell based epitopes with high antigenicity and good binding affinity for the human leukocyte antigen(HLA) classes as targets for epitopes based CHIKV vaccine. Methods: In this study we downloaded 371 non-structural protein 4 protein sequences of CHIKV belonging to different regions of the world from the US National Institute of Allergy and Infectious Diseases(NIAID) virus pathogen resource database. All the sequences were aligned by using CLUSTALW software and a consensus sequence was developed by using Uni Pro U Gene Software version 1.2.1. PropredⅠand Propred software were used to predict HLAⅠ and HLAⅡ binding promiscuous epitopes from the consensus sequence of non-structural protein 4 protein. The predicted epitopes were analyzed to determine their antigenicity through Vaxijen server version 2.0. All the HLAⅠ binding epitopes were scanned to determine their immunogenic potential through the Immune Epitope Database(IEDB). All the predicted epitopes of our study were fed to IEDB database to determine whether they had been tested earlier. Results: Twenty two HLA class Ⅱ epitopes and eight HLA classⅠepitopes were predicted. The promiscuous epitopes WMNMEVKII at position 486–494 and VRRLNAVLL at 331–339 were found to bind with 37 and 36 of the 51 HLA class Ⅱ alleles respectively. Epitope MANRSRYQS at position 58–66 and epitopes YQSRKVENM at positions 64–72 were predicted to bind with 12 and 9 HLAⅠI alleles with antigenicity scores of 0.754 9 and 1.013 0 respectively. Epitope YSPPINVRL was predicted to bind 18 HLAⅠ alleles and its antigenicity score was 1.425 9 and immunogenicity score was 0.173 83. This epitope is very useful in the preparation of a universal vaccine against CHIKV infection. Conclusions: Epitopes reported in this study showed promiscuity, antigenicity as well as good binding affinity for the HLA classes. These epitopes will provide the baseline for development

关键词： Chikungunya virus Epitope vaccine HLA binding T cell epitopes