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Automatic Finding of Brain-Tumour Group Using CNN segmentation and Moth-Flame-Algorithm,selected deep and Handcrafted Features

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Computers, Materials & Continua 2024年第5期79卷 2585-2608页

作者： Imad saud Al Naimi syed Alwee Aljunid syed Junid Muhammad lmran Ahmad K.suresh Manic Faculty of Electronic Engineering Technology University Malaysia Perils(UniMAP)Pauh Putra CampusArauPerlis02600Malaysia department of Electrical and Communication Engineering National University of Science and TechnologyAL HailAL Seeb130Sultanate of Oman department of Research and Innovation Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)ChennaiTamiNadu602105India

Augmentation of abnormal cells in the brain causes brain tumor(BT),and early screening and treatmentwill reduce its harshness in ***’s clinical level screening is usually performed with Magnetic Resonance Imaging(MRI)due to its multi-modality *** overall aims of the study is to introduce,test and verify an advanced image processing technique with algorithms to automatically extract tumour sections from brain MRI scans,facilitating improved *** research intends to devise a reliable framework for detecting the BT region in the twodimensional(2d)MRI slice,and identifying its class with improved *** methodology for the devised framework comprises the phases of:(i)Collection and resizing of images,(ii)Implementation and segmentation of Convolutional Neural Network(CNN),(iii)deep feature extraction,(iv)Handcrafted feature extraction,(v)Moth-Flame-Algorithm(MFA)supported feature reduction,and(vi)Performance *** study utilized clinical-grade brain MRI of BRATs and TCIA datasets for the *** framework segments detected the glioma(low/high grade)and glioblastoma class *** work helped to get a segmentation accuracy of over 98%with VGG-UNet and a classification accuracy of over 98%with the VGG16 *** study has confirmed that the implemented framework is very efficient in detecting the BT in MRI slices with/without the skull section.

关键词： Brain tumour VGG-UNet VGG16 moth-flame-algorithm classification

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Ion heat transport in electron cyclotron resonance heated L-mode plasma on the T-10 tokamak

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Plasma science and Technology 2024年第4期26卷 52-60页

作者： V.A.KRUPIN M.R.NURGALIEV A.R.NEMETs I.A.ZEMTsOV s.d.sUNTsOV T.B.MYALTON d.s.sERGEEV N.A.sOLOVEV d.V.sARYCHEV d.V.RYJAKOV s.N.TUGARINOV N.N.NAUMENKO National Research Centre“Kurchatov Institute” Moscow 123182Russia Bauman Moscow state Technical University Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JsC“sOLAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed in the T-10 tokamak plasma heated with electron cyclotron resonance heating(ECRH) in second-harmonic extra-ordinary mode. Predictive modeling with empirical scaling for Ohmical heat conductivity shows that in ECRH plasmas the calculated ion temperature could be overestimated, so an increase of anomalous ion heat transport is required. To study this effect two scans are presented: over the EC resonance position and over the ECRH power. The EC resonance position varies from the high-field side to the low-field side by variation of the toroidal magnetic field. The scan over the heating power is presented with on-axis and mixed ECRH regimes. discharges with high anomalous ion heat transport are obtained in all considered regimes. In these discharges the power balance ion heat conductivity exceeds the neoclassical level by up to 10 times. The high ion heat transport regimes are distinguished by three parameters: the ratio Te/Ti, the normalized electron density gradient R/■, and the ion–ion collisionality νii~*. The combination of high Te/Ti, high νii~*, and R/■=6-10 results in values of normalized anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak L-mode electron cyclotron resonance heating ion heat transport

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Monkeypox: A Viral Zoonotic disease of Rising Global Concern

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Infectious diseases & Immunity 2024年第3期4卷 121-131页

作者： sukumaran Ani Betsy Joseph Mary Thomas Vishnupriya K.sweety Nandita suresh Tumos Waltimo department of dentistry Oral Health InstituteHamad Medical CorporationPost Box 3050DohaQatar College of dental Medicine Qatar UniversityPost Box 2713DohaQatar department of Periodontology Saveetha Dental College and HospitalsSaveetha Institute of Medical and Technical SciencesSaveetha UniversityChennai 600077India department of Oral and Maxillofacial diseases Helsinki University and University HospitalHelsinki 00014Finland Pushpagiri Institute of Medical sciences and Research Centre MedicityPerumthuruthyTiruvallaKerala 689101India Clinic for Oral Health and Medicine University Center for Dental Medicine Basel UZBUniversity of Basel4058 BaselSwitzerland.

Monkeypox(mpox)is a rare viral zoonotic disease,endemic to Central and West Africa,caused by the monkeypox virus,an orthopoxvirus similar to the variola virus(smallpox).Although sporadic travel-associated cases have historically occurred outside Africa,in May 2022,mpox began spreading globally in multiple nonendemic countries across several *** 2024,there has been an increase in globally reported confirmed cases of mpox and deaths from mpox,making it a public health emergency of international *** reasons for the unusual global spread are under investigation but likely relate to increased travel and waning population immunity to *** now appears to be mainly through close,intimate contact,especially among men who have sex with *** is usually a self-limited *** limited approved antiviral treatments are available,such as tecovirimat,which the European Medicines Agency approved in January 2022 for the treatment of mpox,their widespread availability and effectiveness in the current outbreak remain to be *** health control measures include surveillance,case identification/isolation,contact tracing,and targeted vaccination of contacts at high risk of ***,challenges remain in curtailing the current unprecedented *** knowledge gaps include animal reservoir(s)responsible for initial spillover events,viral mutations that may enhance transmissibility,optimal diagnostics for noninvasive specimens,effective antiviral therapies,next-generation vaccines providing longer-term immunity,and building global capacity for outbreak *** review summarizes the current literature on mpox virology,epidemiology,pathogenesis,clinical manifestations,diagnostics,treatment,prevention,and public health control *** investigation and research are needed to better understand mpox’s evolving epidemiology,pathogenicity,transmissibility,and ecology to guide strategies for containin

关键词： Antiviral agents disease outbreaks Epidemiology Mpox smallpox vaccine Zoonoses

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Optimized CUdA Implementation to Improve the Performance of Bundle Adjustment Algorithm on GPUs

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Journal of software Engineering and Applications 2024年第4期17卷 172-201页

作者： Pranay R. Kommera suresh s. Muknahallipatna John E. McInroy department of Electrical Engineering and Computer science University of Wyoming Laramie Wyoming USA

The 3d reconstruction pipeline uses the Bundle Adjustment algorithm to refine the camera and point parameters. The Bundle Adjustment algorithm is a compute-intensive algorithm, and many researchers have improved its performance by implementing the algorithm on GPUs. In the previous research work, “Improving Accuracy and Computational Burden of Bundle Adjustment Algorithm using GPUs,” the authors demonstrated first the Bundle Adjustment algorithmic performance improvement by reducing the mean square error using an additional radial distorting parameter and explicitly computed analytical derivatives and reducing the computational burden of the Bundle Adjustment algorithm using GPUs. The naïve implementation of the CUdA code, a speedup of 10× for the largest dataset of 13,678 cameras, 4,455,747 points, and 28,975,571 projections was achieved. In this paper, we present the optimization of the Bundle Adjustment algorithm CUdA code on GPUs to achieve higher speedup. We propose a new data memory layout for the parameters in the Bundle Adjustment algorithm, resulting in contiguous memory access. We demonstrate that it improves the memory throughput on the GPUs, thereby improving the overall performance. We also demonstrate an increase in the computational throughput of the algorithm by optimizing the CUdA kernels to utilize the GPU resources effectively. A comparative performance study of explicitly computing an algorithm parameter versus using the Jacobians instead is presented. In the previous work, the Bundle Adjustment algorithm failed to converge for certain datasets due to several block matrices of the cameras in the augmented normal equation, resulting in rank-deficient matrices. In this work, we identify the cameras that cause rank-deficient matrices and preprocess the datasets to ensure the convergence of the BA algorithm. Our optimized CUdA implementation achieves convergence of the Bundle Adjustment algorithm in around 22 seconds for the largest dataset compared

关键词： scene Reconstruction Bundle Adjustment Levenberg-Marquardt Non-Linear Least squares Memory Throughput Computational Throughput Contiguous Memory Access CUdA Optimization

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The magnetosheath at high spectral resolution

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Earth and Planetary Physics 2024年第1期8卷 234-246页

作者： K.d.Küntz d.Koutroumpa W.R.dunn A.Foster F.s.Porter d.G.sibeck B.Walsh The Henry A.Rowland department of Physics and Astronomy Johns Hopkins University3701 San Martin DriveBaltimoreMD21218USA NAsA Goddard space Flight Center 8800 Greenbelt RoadGreenbeltMD 20771USA LATMOs-OVsQ CNRSUVSQ Paris-SaclaySorbonne Université11 Boulevard d’Alembert78280GuyancourtFrance department of Physics and Astronomy University College LondonLondonUK The Centre for Planetary science at UCL/Birkbeck Gower StreetLondon WC1E 6BTUK Center for Astrophysics Harvard University&Smithsonian Institution60 Garden StreetCambridgeMA 02138USA Center for space Physics Boston University110 Cummington MallBostonMAUSA

While we eagerly anticipate sMILE’s(solar wind Magnetosphere Ionosphere Link Explorer)unprecedented X-ray observations of the Earth’s magnetosheath and the initiation of a new era of magnetospheric research,it seems appropriate to look ahead to the abilities of the next generation of astrophysics *** these,the Line Emission Mapper(LEM),a large aperture micro-calorimeter based mission,is currently planned to be able to observe the magnetosheath at high spectral resolution(~2 eV).With a field of view of~30′,LEM will allow higher spatial resolution and higher cadence measurement of the motion of a very small portion of the magnetopause over relatively short periods of time(multiple hours),complementing sMILE’s global ***’s strength is its spectral *** will be able to measure the abundance of a broad range of elements and ionization states,many of which are inaccessible to current in situ instruments,and will be able to separate the emission from the magnetosheath from the emission from the cosmic X-ray background using the difference in their relative velocities.

关键词： magnetosheath charge exchange solar wind abundances

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Adaptive Marine Predator Optimization Algorithm(AOMA)-deep supervised Learning Classification(dsLC)based Ids framework for MANET security

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Intelligent and Converged Networks 2024年第1期5卷 1-18页

作者： M.sahaya sheela A.Gnana soundari Aditya Mudigonda C.Kalpana K.suresh K.somasundaram Yousef Farhaoui department of Electronics and Communication Engineering Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and TechnologyChennai 600069India department of Computer science and Engineering Saveetha School of EngineeringSIMATSChennai 602105India JNIAs school of Planning and Architecture Hyderabad 500034India department of Computer science and Engineering NPR College of Engineering and TechnologyNatham Dindigul 624401India department of Computer science and Engineering PSNA College of Engineering and TechnologyPoolangulathupatti 620009India department of Computer science and Engineering Sri Muthukumaran Institute of TechnologyChennai 600069India department of Computer science Moulay Ismail UniversityMeknes 5003Morocco

due to the dynamic nature and node mobility,assuring the security of Mobile Ad-hoc Networks(MANET)is one of the difficult and challenging tasks *** MANET,the Intrusion detection system(Ids)is crucial because it aids in the identification and detection of malicious attacks that impair the network’s regular *** machine learning and deep learning methodologies are used for this purpose in the conventional works to ensure increased security of ***,it still has significant flaws,including increased algorithmic complexity,lower system performance,and a higher rate of ***,the goal of this paper is to create an intelligent Ids framework for significantly enhancing MANET security through the use of deep learning ***,the min-max normalization model is applied to preprocess the given cyber-attack datasets for normalizing the attributes or fields,which increases the overall intrusion detection performance of ***,a novel Adaptive Marine Predator Optimization Algorithm(AOMA)is implemented to choose the optimal features for improving the speed and intrusion detection performance of ***,the deep supervise Learning Classification(dsLC)mechanism is utilized to predict and categorize the type of intrusion based on proper learning and training *** evaluation,the performance and results of the proposed AOMA-dsLC based Ids methodology is validated and compared using various performance measures and benchmarking datasets.

关键词： Intrusion detection system(Ids) security Mobile Ad-hoc Network(MANET) min-max normalization Adaptive Marine Predator Optimization Algorithm(AOMA) deep supervise Learning Classification(dsLC)

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development and testing of a high-power s-band klystron at BINP sB RAs

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Nuclear science and Techniques 2024年第7期35卷 58-67页

作者： A.Levichev A.Barnyakov s.samoylov d.Nikiforov V.Ivanov M.Arsentyeva d.Chekmenev O.Pavlov I.Pivovarov Budker Institute of Nuclear Physics Lavrentyeva Av.11NovosibirskRussia630090 Novosibirsk state University Pirogova Str.2NovosibirskRussia630090

This paper details the development and testing of the first working prototype of the s-band high-power klystron,accomplished at the Budker Institute of Nuclear Physics,siberian Branch,Russian Academy of sciences(BINP sB RAs).Upon testing,the klystron demonstrated the following parameters:an operating frequency of 2856 MHz and a peak power output of 50 *** paper presents the klystron's design,its constituent units,and pertinent processing procedures,along with discussions on the measurement of its parameters.

关键词： Klystron Linear accelerator Electron beam

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The dorsal root ganglion as a target for neurorestoration in neuropathic pain

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Neural Regeneration Research 2024年第2期19卷 296-301页

作者： Guillermo Estivill-Torrús Ana Belen Martínez-Padilla Lourdes sánchez-salido Anne Baron-Van Evercooren Beatriz García-díaz Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina(IBIMA Plataforma BIONANd) MálagaSpain Unidad Clínica de Neurociencias Hospital Regional Universitario de MálagaMálagaSpain departamento de Biología Molecular y Bioquímica Universidad de MálagaSpain sorbonne Université Institut du Cerveau-Paris Brain Institute-ICMINSERMCNRSAP-HPHôpital Pitié-SalpêtrièreParisFrance

Neuropathic pain is a severe and chronic condition widely found in the general *** reason for this is the extensive variety of damage or diseases that can spark this unpleasant constant feeling in *** the processing of pain,the dorsal root ganglia constitute an important region where dorsal root ganglion neurons play a crucial role in the transmission and propagation of sensory electrical ***,the dorsal root ganglia have recently exhibited a regenerative capacity that should not be neglected in the understanding of the development and resolution of neuropathic pain and in the elucidation of innovative ***,we will review the complex interplay between cells(satellite glial cells and inflammatory cells)and factors(cytokines,neurotrophic factors and genetic factors)that takes place within the dorsal root ganglia and accounts for the generation of the aberrant excitation of primary sensory neurons occurring in neuropathic *** importantly,we will summarize an updated view of the current pharmacologic and nonpharmacologic therapies targeting the dorsal root ganglia for the treatment of neuropathic pain.

关键词： cytokines dorsal root ganglia genetic factors neuropathic pain neurotrophic factors pharmacologic and nonpharmacologic therapies satellite glial cells sensory neurons

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snapshot survey of the Presence of Perfluoroalkyl substances in Products, Articles, and the Environment in Ecuador

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Engineering 2024年第6期37卷 49-61页

作者： Heidelore Fiedler Luis Vega-Bustillos Jenny Arias-Pastrano Lander Vinicio Pérez-Aldás Jose Castro-díaz MTM Research Centre School of Science and TechnologyÖrebro UniversityÖrebro 70182Sweden Undersecretariat of Environmental Quality Ministry of EnvironmentWater and Ecological Transition of EcuadorQuito 170525Ecuador department of Environmental Chemistry The Technical University of AmbatoHuachi CampusAmbato 180207Ecuador Alternativavision Ambiental Cia.Ltda. Mexico 03100Mexico

The stockholm Convention on Persistent Organic Pollutants(POPs)is a legally binding instrument for 186 Parties(status:April 2023).Accordingly,among other responsibilities,countries are obliged to report the production,import,or export of the POPs listed in Annexes A,B,or C;provide information to registers;maintain inventories;and monitor the presence of POPs in the *** the broader context of international chemicals and waste management,producer responsibilities,harmonized reporting,and compliance with national and international regulations,Ecuador has addressed the newly listed group of perfluorinated alkyl substances(PFAs)in its national implementation plan and sent selected products from its national market for PFAs *** products analyzed came from the initially listed fields of specific exemptions and acceptable purposes,including:fire-fighting foams;photographic aids;greasers/degreasers;various kinds of paper/packaging;textiles;and leather,coatings,cleaners,metal plating,and *** results showed that the three PFAs presently listed in the stockholm Convention could be quantified in only a few samples;additional PFAs,not yet listed in the Convention also had low detection *** the number of samples was limited,the samples covered a large spectrum of sample matrices,making it possible to conclude that—once these products become waste and are regulated under the Basel Convention—they would not constitute a disposal ***,verification of the presence of PFAs in products on the market is expected to pose an analytical challenge for both,developed and developing countries.

关键词： Emerging or newly listed POPs stockholm Convention Products and articles PFAs analysis developing countries

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Physical Layer security of 6G Vehicular Networks with UAV systems: First Order secrecy Metrics, Optimization, and Bounds

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Computers, Materials and Continua 2024年第3期80卷 3685-3711页

作者： Kavaiya s. Mewada H. Patel s. Chauhan d. Almalki F.A. Mujlid H.M. smt. Chandaben Mohanbhai Patel Institute of Computer Applications Charotar University of Science and Technology Anand Changa 388421 India Electrical Engineering department Prince Mohammad Bin Fahad University P.O. Box 1664 Al Khobar 31952 Saudi Arabia department of Electronics and Communication Engineering Chandubhai S. Patel Institute of Technology Charotar University of Science and Technology Anand Changa 388421 India department of Computer Engineering College of Computers and Information Technology Taif University P.O. Box 11099 Taif 21944 Saudi Arabia

The mobility and connective capabilities of unmanned aerial vehicles (UAVs) are becoming more and more important in defense, commercial, and research domains. However, their open communication makes UAVs sus***,theinefficiencyoftraditional cryptography-based techniques has led to the addition of Physical Layer security (PLs). This study focuses on the advanced PLs method for passive eavesdropping in UAV-aided vehicular environments, proposing a solution to complement the conventional cryptography approach. Initially, we present a performance analysis of first-order secrecy metrics in 6G-enabled UAV systems, namely hybrid outage probability (HOP) and secrecy outage probability (sOP) over 2 × 2 Nakagami-m channels. Later, we propose a novel technique for mitigating passive eavesdropping, which considers first-order secrecy metrics as an optimization problem and determines their lower and upper bounds. Finally, we conduct an analysis of bounded HOP and sOP using the interactive Nakagami-m channel, considering the multiple-input-multiple-output configuration of the UAV system. The findingsindicatethat2×2Nakagami-misasuitablefadingmodelunderconstantvelocityfortrustworthyreceivers and eavesdroppers. The results indicate that UAV mobility has some influence on an eavesdropper’s intrusion during line-of-sight-enabled communication and can play an important role in improving security against passive eavesdroppers. Copyright © 2024 The Authors. Published by Tech science Press.

关键词： 3d positioning 6G communications Physical layer security UAV systems

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