检索结果-南通市图书馆

同方期刊数据库

Exploring Deep Learning Methods for Computer Vision Applications across Multiple sectors:Challenges and Future Trends

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & sciences 2024年第4期139卷 103-141页

作者： Narayanan Ganesh Rajendran shankar miroslav Mahdal Janakiraman senthilMurugan Jasgurpreet singh Chohan Kanak Kalita school of Computer science and Engineering Vellore Institute of TechnologyChennai600127India Department of Computer science and Engineering Koneru Lakshmaiah Education FoundationVaddeswaram522502India Department of Control systems and Instrumentation Faculty of Mechanical EngineeringVSB-Technical University of OstravaOstrava70800Czech Republic Department of Computer science and Engineering Vel Tech High Tech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062India Department of Mechanical Engineering and University Centre for Research&Development Chandigarh UniversityMohali140413India Department of Mechanical Engineering Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and TechnologyAvadi600062India

Computer vision(CV)was developed for computers and other systems to act or make recommendations based on visual inputs,such as digital photos,movies,and other *** learning(DL)methods are more successful than other traditional machine learning(ML)methods *** techniques can produce state-of-the-art results for difficult CV problems like picture categorization,object detection,and face *** this review,a structured discussion on the history,methods,and applications of DL methods to CV problems is *** sector-wise presentation of applications in this papermay be particularly useful for researchers in niche fields who have limited or introductory knowledge of DL methods and *** review will provide readers with context and examples of how these techniques can be applied to specific areas.A curated list of popular datasets and a brief description of them are also included for the benefit of readers.

关键词： Neural network machine vision classification object detection deep learning

New strategies in the diagnosis and treatment of immune-checkpoint inhibitor-mediated colitis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第6期12卷 1050-1062页

作者： Tsvetelina Velikova Boris krastev Milena Gulinac miroslav Zashev Vasko Graklanov Milena Peruhova Medical Faculty Sofia University St.Kliment OhridskiSofia 1407Bulgaria Medical Center Nadezhda Medical Center NadezhdaSofia 1407Bulgaria General and Clinical Pathology Medical University of PlovdivPlovdiv 4002Bulgaria Department of General surgery University Hospital“Heart and Brain”Burgas 8000Bulgaria First Department of Internal Diseases Medical University of PlovdivPlovdiv 4000Bulgaria Department of Hematology University Hospital“St.George”Plovdiv 4000Bulgaria Division of Gastroenterology University Hospital“Heart and Brain”Burgas 1000Bulgaria

Immune-checkpoint inhibitor-mediated colitis(IMC)is an increasingly recognized adverse event in cancer immunotherapy,particularly associated with immune checkpoint inhibitors(ICIs)such as anti-cytotoxic T-lymphocyte antigen-4 and anti-programmed cell death protein-1 *** this revolutionary immunotherapy gains prominence in cancer treatment,understanding,diagnosing,and effectively managing IMC becomes *** represents a unique challenge due to its immune-mediated nature and potential for severe ***,a precise picture of IMC pathophysiology is currently ***,we aimed to summarize the existing data while acknowledging the need for further *** comprehensive review explores the mechanisms underlying ICIs,gastrointestinal adverse effects,and,in particular,IMC’s incidence,prevalence,and *** review also emphasizes the importance of recognizing IMC’s distinct clinical and histopathological features to differentiate it from other forms of ***,this paper highlights the urgentneed for evolving diagnostic methods,therapeutic strategies,and a multidisciplinary approach to effectively manage IMC.

关键词： Immune-checkpoint inhibitors Immune-checkpoint inhibitor-mediated colitis Inhibitor-mediated colitis management Immunotherapy-associated colitis Checkpoint inhibitor-induced colitis Gastrointestinal adverse effects Checkpoint inhibitor toxicity Inhibitor-mediated colitis therapy

Photometric and spectroscopic study of Ten Low Mass Ratio Contact Binary systems:Orbital stability,O'Connell Effect and Infrared Calcium Line Filling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第8期24卷 212-222页

作者： surjit s.Wadhwa Adam Popowicz Raúl Michel Petar Kostić Oliver Vince Nick F.H.Tothill Ain Y.De Horta miroslav D.Filipović school of science Western Sydney UniversityLocked Bag 1797PenrithNSW 2751Australia Department of Electronics Electrical Engineering and MicroelectronicsSilesian University of TechnologyAkademicka 1644120 GliwicePoland Instituto de Astronomía UNAM.A.P.87722800 EnsenadaBCMéxico Astronomical Observatory Volgina 711060 BelgradeSerbia

Low mass ratio contact binary systems are more likely to have unstable orbits and potentially *** addition,such systems exhibit characteristics such as starspots and high energy emissions(UV)suggestive of chromospheric and magnetic *** curve modeling of ten contact binary systems is *** were found to be of extreme low mass ratio ranging from 0.122 to 0.24 and three were found to be potentially unstable and possible merger *** of the infrared calcium absorption lines is a marker of increased chromospheric *** use the available Large sky Area Multi-Object Fiber spectroscopic Telescope spectra along with matched standard spectra(broadened for rotation)to measure the excess filling of the central core depression flux of the two main infrared calcium absorption linesλ8542 andλ*** find that all reported contact binaries have excess filling of the core flux in the infrared calcium *** of the systems reported were also observed by the Galaxy Evolution Explorer mission and we find that all three have features of excess ultraviolet emissions further adding evidence for increased chromospheric activity in low mass ratio contact *** of both orbital stability and absorption line filling is dependent on the determination of geometric and absolute parameters from light curve *** an insignificant number of contact binary light curves exhibit the O’Connell effect,usually attributed to *** discuss the inclusion of starspots in light curve solutions and how they influence the geometric and absolute parameters.

关键词： (stars)binaries eclipsing-techniques photometric-stars chromospheres

A novel multi-shot target platform for laser-driven laboratory astrophysics experiments

在线全文

学校读者我要写书评

暂无评论

High Power Laser science and Engineering 2023年第2期11卷 11-19页

作者： Pablo Perez-Martin Irene Prencipe Manfred sobiella Fabian Donat Ning Kang Zhiyu He Huiya Liu Lei Ren Zhiyong Xie Jun Xiong Yan Zhang Florian-Emanuel Brack MichalČervenák Pavel Gajdoš Lenka Hronová Kakolee Kaniz Michaela Kozlová Florian kroll Xiayun Pan Gabriel schaumann sushil singh MichalŠmíd Francisco suzuki-Vidal Panzheng Zhang Jinren sun Jianqiang Zhu miroslav krůs Katerina Falk Helmholtz-Zentrum Dresden-Rossendorf Institute of Radiation PhysicsDresdenGermany Technische Universität Dresden DresdenGermany Key Laboratory of High Power Laser and Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina shanghai Institute of Laser Plasma China Academy of Engineering PhysicsShanghaiChina Institute of Plasma Physics Czech Academy of SciencesPragueCzech Republic Czech Technical University Faculty of Nuclear Sciences and Physical EngineeringPragueCzech Republic Department of Physics Jagannath UniversityDhakaBangladesh ELI-Beamlines Institute of PhysicsCzech Academy of SciencesPragueCzech Republic Institute for Nuclear Physics Technical University of DarmstadtDarmstadtGermany Institute of Physics Czech Academy of SciencesPragueCzech Republic Blackett Laboratory Imperial CollegeLondonUnited Kingdom First Light Fusion Oxford Industrial ParkYarntonOxfordUnited Kingdom

A new approach to target development for laboratory astrophysics experiments at high-power laser facilities is *** the dawn of high-power lasers,laboratory astrophysics has emerged as a field,bringing insight into physical processes in astrophysical objects,such as the formation of *** important factor for success in these experiments is *** date,targets have mainly relied on expensive and challenging microfabrication *** design presented incorporates replaceable machined parts that assemble into a structure that defines the experimental *** can make targets cheaper and faster to manufacture,while maintaining robustness and *** platform is intended for experiments on plasma flows,but it is flexible and may be adapted to the constraints of other experimental *** of targets used in experimental campaigns are shown,including a design for insertion in a high magnetic field *** results are included,demonstrating the performance of the targets.

关键词： high magnetic fields laboratory astrophysics laser-plasma interaction magnetized plasmas target design

Cyberbullying sexism Harassment Identification by Metaheurustics-Tuned eXtreme Gradient Boosting

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第9期80卷 4997-5027页

作者： Milos Dobrojevic Luka Jovanovic Lepa Babic miroslav Cajic Tamara Zivkovic Miodrag Zivkovic suresh Muthusamy Milos Antonijevic Nebojsa Bacanin Technical Faculty Singidunum UniversityBelgrade11000Serbia Informatics and Computing Singidunum UniversityBelgrade11000Serbia Business Economics Singidunum UniversityBelgrade11000Serbia Computing and Informatics Sinergija UniversityBijeljina76300Bosnia and Herzegovina Department for Information systems and Technologies University“Union Nikola Tesla”Cara DusanaBelgrade11080Serbia Department for Computer science and Informatics School of Electrical EngineeringUniversity of BelgradeBelgrade11000Serbia Department of Electrical and Electronics Engineering Kongu Engineering College(Autonomous)PerunduraiErode638060India Department of Mathematics Saveetha School of Engineering(Deemed to be University)SIMATS ThandalamChennai602105India MEU Research Unit Middle East UniversityAmman11831Jordan

Cyberbullying is a form of harassment or bullying that takes place online or through digital devices like smartphones,computers,or *** can occur through various channels,such as social media,text messages,online forums,or gaming *** involves using technology to intentionally harm,harass,or intimidate others and may take different forms,including exclusion,doxing,impersonation,harassment,and ***,due to the rapid growth of malicious internet users,this social phenomenon is becoming more frequent,and there is a huge need to address this ***,the main goal of the research proposed in this manuscript is to tackle this emerging challenge.A dataset of sexist harassment on Twitter,containing tweets about the harassment of people on a sexual basis,for natural language processing(NLP),is used for this *** algorithms are used to transform the text into a meaningful representation of numbers for machine learning(ML)input:Term frequency inverse document frequency(TF-IDF)and Bidirectional encoder representations from transformers(BERT).The well-known eXtreme gradient boosting(XGBoost)ML model is employed to classify whether certain tweets fall into the category of sexual-based harassment or ***,with the goal of reaching better performance,several XGBoost models were devised conducting hyperparameter tuning by *** this purpose,the recently emerging Coyote optimization algorithm(COA)was modified and adjusted to optimize the XGBoost ***,other cutting-edge metaheuristics approach for this challenge were also implemented,and rigid comparative analysis of the captured classification metrics(accuracy,Cohen kappa score,precision,recall,and F1-score)was ***,the best-generated model was interpreted by shapley additive explanations(sHAP),and useful insights were gained about the behavioral patterns of people who perform social harassment.

关键词： Coyote optimization algorithm NLP TF-IDF BERT XGBoost online harassment and cyberbullying metaheuristics

In vivo femtosecond laser nanosurgery of the cell wall enabling patch-clamp measurements on filamentous fungi

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2024年第2期10卷 251-267页

作者： Tanja Pajić Katarina stevanović Nataša V.Todorović Aleksandar J.krmpot miroslav Živić svetlana savić-Šević steva M.Lević Marina stanić Dejan Pantelić Brana Jelenković Mihailo D.Rabasović Institute of Physiology and Biochemistry“Ivan Djaja” Faculty of BiologyUniversity of BelgradeStudentski trg 1611158BelgradeSerbia Institute for Biological Research“siniša stanković” University of BelgradeNational Institute of the Republic of SerbiaBulevar Despota Stefana 14211000BelgradeSerbia Institute of Physics Belgrade University of BelgradeNational Institute of the Republic of SerbiaPregrevica 11811080BelgradeSerbia University of Belgrade Faculty of AgricultureNemanjina Street 611080BelgradeSerbia Institute for Multidisciplinary Research University of BelgradeKneza Višeslava 111030BelgradeSerbia

studying the membrane physiology of filamentous fungi is key to understanding their interactions with the environment and crucial for developing new therapeutic strategies for disease-causing ***,their plasma membrane has been inaccessible for a micron-sized patch-clamp pipette for pA current recordings due to the rigid chitinous cell ***,we report the first femtosecond IR laser nanosurgery of the cell wall of the filamentous fungi,which enabled patch-clamp measurements on protoplasts released from hyphae.A reproducible and highly precise(diffraction-limited,submicron resolution)method for obtaining viable released protoplasts was *** release from the nanosurgery-generated incisions in the cell wall was achieved from different regions of the *** plasma membrane of the obtained protoplasts formed tight and high-resistance(GΩ)contacts with the recording *** entire nanosurgical procedure followed by the patch-clamp technique could be completed in less than 1 *** to previous studies using heterologously expressed channels,this technique provides the opportunity to identify new ionic currents and to study the properties of the ion channels in the protoplasts of filamentous fungi in their native environment.

关键词： patch recording laser

sustaining forest biodiversity:Exploring the effect of long-term natural disturbance dynamics on contemporary lichen communities in primary forest ecosystems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Forest Ecosystems 2024年第4期11卷 556-567页

作者： Rhiannon Gloor Marek svitok Martin Mikolas Jenyk Hofmeister Josef Halda Pavel Janda Francesco Maria sabatini Lucie Zemanova Arne Buechling Daniel Kozak Matej Ferencik Michal Frankovic Martin Dusatko miroslav svoboda Department of Forest Ecology Faculty of Forestry and Wood SciencesCzech University of Life Sciences PragueKamycka 129Praha 6–Suchdol16500Czech Republic Faculty of Ecology and Environmental sciences Technical University in ZvolenT.G.Masaryka 2496001ZvolenSlovakia Institute of Botany Plant Science and Biodiversity CenterSlovak Academy of SciencesDúbravska cesta 984523BratislavaSlovakia PRALEs Odtrnovie 56301322RosinaSlovakia Faculty of science University of Hradec KraloveHradecka 1285Hradec KraloveⅢ50003Czech Republic BIOME–Biogeography and Macroecology Department of BiologicalGeological and Environmental Sciences(BIGEA)Alma Mater Studiorum-University of Bolognavia Irnerio 42BolognaItaly

In this era of biodiversity loss and climate change,quantifying the impacts of natural disturbance on forest communities is imperative to improve biodiversity conservation *** and epixylic lichens are effective forest quality bioindicators,as they are generally long-lived organisms supported by continuity of specific forest structures and their associated microclimatic ***,how lichen communities respond to the effects of fluctuating historical disturbances remains *** a dendrochronological approach,this study investigates how natural disturbance dynamics indirectly influence various lichen community metrics in some of Europe's best-preserved primary mixed-beech *** modelling revealed that natural historical disturbance processes have decades-long effects on forest structural attributes,which had both congruent and divergent impacts on lichen community richness and *** species richness indirectly benefited from both historical and recent higher-severity disturbances via increased standing dead tree basal area and canopy openness respectively-likely through the presence of both pioneer and late-successional species associated with these ***-listed species richness showed a dependence on habitat continuity(old trees),and increased with disturbance-related structures(standing dead trees)whilst simultaneously benefiting from periods without severe disturbance events(old trees and reduced deadwood volume).However,if the disturbance occurred over a century in the past,no substantial effect on forest structure was ***,while disturbance-mediated forest structures can promote overall richness,threatened species appear vulnerable to more severe disturbance events-a concern,as disturbances are predicted to intensify with climate ***,the high number of threatened species found reinforce the critical role of primary forest structural attributes for biodiversity ***

关键词： Mixed-beech forests species richness Old-growth forests Carpathian mountains Biodiversity conservation Dendroecology Fagus sylvatica

Tree structure and diversity shape the biomass of primary temperate mountain forests

在线全文

学校读者我要写书评

暂无评论

Forest Ecosystems 2024年第4期11卷 568-579页

作者： Dheeraj Ralhan Ruffy Rodrigo Heather Keith Annemiek Irene stegehuis Jakob Pavlin Yumei Jiang Milos Rydval Juliana Nogueira Alexandre Fruleux Marek svitok Martin Mikolas Daniel Kozak Martin Dusatko Pavel Janda Oleh Chaskovsky Catalin-Constantin Roibu miroslav svoboda Czech University of Life sciences Prague Faculty of Forestry and Wood SciencesKamycka 129Suchdol16521 Praha 6Czech Republic Department of Forest science Biliran Province State UniversityBiliran6549Philippines Griffith Climate Action Beacon Griffith UniversityParklands DriveSouthportGold CoastQueensland4222Australia Laboratoire de Geologie IPSLCNRSUMR 8538Ecole Normale SuperieurePSL UniversityParisFrance Univ.Lille Institut Mines-TelecomUniv.ArtoisJuniaULR 4515LGCgELaboratoire de Genie Civil et Geo-EnvironnementF-59000LilleFrance Department of Biology and General Ecology Faculty of Ecology and Environmental SciencesTechnical University in ZvolenMasaryka 2496001ZvolenSlovakia Institute of Forest Management Ukrainian National Forestry UniversityLvivUkraine Forest Biometrics Laboratory–Faculty of Forestry Stefan Cel Mare University of SuceavaUniversitații Street Number.13Suceava720229Romania

Primary forests are spatially diverse terrestrial ecosystems with unique characteristics,being naturally regenerative and heterogeneous,which supports the stability of their carbon storage through the accumulation of live and dead ***,little is known about the interactions between biomass stocks,tree genus diversity and structure across a temperate montane primary ***,we investigated the relationship between tree structure(variability in basal area and tree size),genus-level diversity(abundance,tree diversity)and biomass stocks in temperate primary mountain forests across Central and Eastern *** used inventory data from726 permanent sample plots from mixed beech and spruce across the Carpathian *** used nonlinear regression to analyse the spatial variability in forest biomass,structure,and genus-level diversity and how they interact with plot-level tree age,disturbances,temperature and *** found that the combined effects of genus and structural indices were important for addressing the variability in biomass across different spatial *** processes in disturbance regimes and uneven tree age support forest hete rogeneity and the accumulation of live and dead biomass through the natural regeneration,growth and decay of the forest *** complexities in basal area index,supporte d by genus-level abundance,positively influence total biomass stocks,which was modulated by tree age and *** forests showed higher tree density and basal area than mixed beech forests,though mixed beech still contributes significantly to biomass across *** heterogeneity was strongly influenced by complexities in forest composition(tree genus diversity,structure).We addressed the importance of primary forests as stable carbon stores,achieved through structure and *** such ecosystems is critical for ensuring the stability of the primary forest,carbon store and biodiversity into the future.

关键词： Biodiversity indicators Biomass carbon stock Ecosystem functioning Forest composition Primary forest structure Tree size distribution

3D Raman mapping as an analytical tool for investigating the coatings of coated drug particles

在线全文

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2023年第3期13卷 276-286页

作者： Georgia Koutentaki Pavel krýsa Dan Trunov Tomás Pekarek Marketa Pislova miroslav soos Department of Chemical Engineering University of Chemistry and Technology PraguePrague 616628Czech Republic Zentiva k.s.Prague 1010237Czech Republic

The properties of dry-coated paracetamol particles(fast-dissolving model drug)with carnauba wax particles as the coating agent(dissolution retardant)were *** mapping technique was used to non-destructively examine the thickness and homogeneity of coated *** results showed that the wax existed in two forms on the surface of the paracetamol particles,forming a porous coating layer:i)whole wax particles on the surface of paracetamol and glued together with other wax surface particles,and ii)deformed wax particles spread on the *** of the final particle size fraction(between 100 and 800 mm),the coating thickness had high variability,with average thickness of 5.9±4.2 *** ability of carnauba wax to decrease the dissolution rate of paracetamol was confirmed by dissolution of powder and tablet *** dissolution was slower for larger coated *** further reduced the dissolution rate,clearly indicating the impact of subsequent formulation processes on the final quality of the product.

关键词： Raman mapping Dry-coating Dissolution Particle coating thickness Polymers