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Electromagnetic wave scattering in plasma beam-driven waveguides under strong magnetic fields

Communications in Theoretical Physics 2024年第11期76卷 123-134页

作者： Shahana Rizvi Muhammad Afzal Department of Mathematics Capital University of Science and TechnologyIslamabadPakistan Department of Mathematics and Natural Sciences Center for Applied Mathematics and BioinformaticsGulf University for Science&Technology32093 HawallyKuwait

This study analyzes the scattering of electromagnetic waves in a cold and uniform plasma-filled waveguide driven by an intense relativistic plasma beam under a strong magnetic *** strong interaction of plasma with electromagnetic waves enables its potential use in different types of *** Helmholtz equation governs the boundary value problem,which is solved by incorporating the mode matching *** the boundary and matching conditions and the derived orthogonality and dispersion relations in this scheme gives an exact solution to the scattering *** numerical results shed light on the occurrence of reflection and transmission and flow of *** power flux is plotted against angular frequency and various duct *** solution is completely validated through the benefit of analytical and numerical *** investigation of this structure reveals not only its mathematical,but also its physical features.

关键词： electromagnetic waves cold plasma mode matching technique

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Nonlinear vibration analysis of cantilever beams: Analytical, numerical and experimental perspectives

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Partial Differential Equations in applied mathematics 2025年 13卷

作者： Abbas, Qamar Nawaz, Rab Yaqoob, Haseeb Ali, Hafiz Muhammad Jamil, Muhammad Musaddiq Department of Mechanical Engineering King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia Center for Applied Mathematics and Bioinformatics (CAMB) Gulf University for Science and Technology Hawally 32093 Kuwait Department of Mathematics COMSATS University Islamabad Park Road Islamabad Tarlai Kalan 45550 Pakistan Interdisciplinary Research Center for Sustainable Energy Systems (IRC-SES) King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia Department of Computer Science Friedrich-Alexander-Universität Erlangen-Nürnberg 91054 Germany

This study investigates the vibrational behavior of a mild steel cantilever beam with and without an attached end mass using experimental, numerical, analytical, and computational methods. Vibrational frequencies were determined using LABVIEW, MATLAB, and SOLIDWORKS, with analytical results derived from Euler-Bernoulli beam (EBB) theory. Experimental results closely matched MATLAB simulations, with an average percentage error of 1.44%, but showed a 14.44% deviation from analytical results due to neglected accelerometer mass. Findings highlight the importance of precise modeling, accounting for factors like damping and mass effects, to achieve accurate results. The study underscores the significance of resonant frequency identification in mitigating vibration failures in engineering systems. © 2025 The Author(s)

关键词： Analytical Cantilever beams Experimental Nonlinear vibration analysis Numerical

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Anti-hypercholesterolemia properties of exopolysaccharide from Lactiplantibacillus plantarum MI01: Computational and in vivo approaches

Case Studies in Chemical and Environmental Engineering

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Case Studies in Chemical and Environmental Engineering 2025年 11卷

作者： Kusmiati, Kusmiati Nurkanto, Arif Fanani, Asrul Nurcahyanto, Dian Alfian Mamangkey, Jendri Marissa, Sarah Pasaribu, Khatarina Meldawati Afiati, Fifi Agustini, Ni Wayan Sri Ahmad, Riza Zainuddin Masrukhin Taufik, Muhammad Irawan, Herman Adalina, Yelin Kusmiati, Mia Gangga, Erlindha Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment National Research and Innovation Agency (BRIN) Indonesia Department of Biochemistry Faculty Mathematics and Natural Sciences IPB University Bogor Indonesia Research and Education Center for Bioinformatics Indonesia Institute of Bioinformatics Malang Indonesia Department of Biology Education Faculty of Education and Teacher Training Universitas Kristen Indonesia Jakarta Indonesia Faculty of Pharmacy University of Pancasila Srengseng Sawah Jagakarsa Jakarta Indonesia Research Center for Biomass and Bioproducts National Research and Innovation Agency of Indonesia (BRIN) Indonesia Research Center for Applied Microbiology-Research Organization for Life Sciences and Environment National Research and Innovation Agency (BRIN) Indonesia Research Center for Veterinary Science Research Organization for Health National Research and Innovation Agency (BRIN) Indonesia Organic Chemistry Division Faculty of Mathematics and Natural Sciences Bandung Institute of Technology West Java Bandung Indonesia Research Center for Genetic Engineering Research Organization for Life Sciences and Environment National Research and Innovation Agency (BRIN) Indonesia Research Centre for Applied Botany Research Organization for Life Science and Environment National Research and Innovation Agency Indonesia

Exopolysaccharides (EPS) produced by lactic acid bacteria (LAB) are extensively studied for their health benefits, particularly in lowering cholesterol levels. This research utilized Lactiplantibacillus plantarum MI01, isolated from ripe mangoes, to produce EPS. The study aimed to investigate EPS as an anti-hypercholesterolemic agent through in silico and in vivo methods. Molecular docking revealed strong interactions between EPS monomers (glucose, galactose, rhamnose, and guluronic acid) and the HMG-CoA reductase enzyme, confirming EPS as a competitive inhibitor. In vivo tests on male Sprague Dawley mice involved administering varying doses of crude EPS. The experiment, using a completely randomized design with four replications, divided the mice into six groups: standard control, negative control, positive control (atorvastatin 20 mg/kg BW), and three EPS groups (20, 40, and 60 mg/kg BW per day). Measurements included total cholesterol, triglycerides, HDL, and LDL levels in blood serum. Administering 60 mg/kg BW/day of crude EPS to hypercholesterolemic mice reduced total cholesterol, triglycerides, and LDL by 21.66 %, 16.86 %, and 42.46 %, respectively, and increased HDL by 10.89 %. © 2025 The Authors

关键词： Exopolysaccharides Hypercholesterolemic In silico In vivo Lactiplantibacillus plantarum

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Aquaculture and Fisheries 2025年第1期10卷 141-148页

作者： Sadi Aksu Ozgür Emiroglu Paride Balzani J.Robert Britton Esengül Kose Irmak Kurtul Sercan Baskurt Oguzcan Mol Emre Cinar Phillip J.Haubrock Pinar Oztopcu-Vatan Ali Serhan Tarkan Vocational School of Health Services Eskisehir Osmangazi UniversityEskisehirTurkey Department of Biology Faculty of ScienceEskisehir Osmangazi UniversityEskisehirTurkey Faculty of Fisheries and Protection of Waters South Bohemian Research Centre of Aquaculture and Biodiversity of HydrocenosesUniversity of South Bohemia in Ceske BudejoviceZatisi 728/II38925VodnanyCzech Republic Department of Life and Environmental Sciences Faculty of Science and TechnologyBournemouth UniversityPooleDorsetUK Department of Environmental Protection Technologies Eskisehir Vocational SchoolEskisehir Osmangazi UniversityEskisehirTurkey Marine and Inland Waters Sciences and Technology Department Faculty of FisheriesEge UniversityIzmirTurkey Department of River Ecology and Conservation Senckenberg Research Institute and Natural History Museum FrankfurtGelnhausenGermany Center for Applied Mathematics and Bioinformatics CAMBGulf University for Science and TechnologyAl-AbdullahKuwait Department of Basic Sciences Faculty of FisheriesMugla Sitki Kocman UniversityMenteseMuglaTurkey Department of Ecology and Vertebrate Zoology Faculty of Biology and Environmental ProtectionUniversity of LodzLodzPoland

Although the detrimental ecological and economic effects of introducing freshwater fish species have been extensively documented,non-native freshwater fishes continue to be introduced in large numbers globally to enhance fisheries and *** Turkey,stocking of common carp Cyprinus carpio is practised to provide food security for people and job security for artisanal fishers,resulting in a country-wide *** stockings,however,increase the risk of accidental introductions and have led to introductions and subsequent invasions of gibel carp Carassius gibelio,a globally invasive and highly detrimental fish ***,we assessed the growth types,body conditions and trophic interactions via bulk carbon and nitrogen stable isotope analysis of common and gibel carp in both natural and artificial water bodies in *** results indicated that common and gibel carp express similar growth types and body conditions in all waters and have similar trophic *** leads to substantial trophic niche overlaps in waters where they co-occur,with the potential for strong interspecific *** the ongoing stocking of common carp for fishery enhancement,we recommend to specifically target these stockings in waters where gibel carp has already become *** findings,indeed,suggest that common carp releases have the potential to hamper invasive gibel carp populations by increasing the competitive interactions between the two species.

关键词： Stable isotopes Niche overlap Cyprinus carpio Carassius gibelio Stocking Invasion

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Analyzing coupled wave dynamics in elastic waveguides with height variations: Modeling and insights

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Partial Differential Equations in applied mathematics 2025年 14卷

作者： Afzal, Muhammad Aziz, Taha Department of Mathematics and Natural Sciences Center for Applied Mathematics and Bioinformatics Gulf University for Science & Technology Hawally 32093 Kuwait Department of Mathematical Sciences DCC-KFUPM King Fahd University of Petroleum and Minerals (KFUPM) Dhahran 31261 Saudi Arabia Interdisciplinary Research Center for Sustainable Energy Systems (IRC-SES) KFUPM Dhahran 31261 Saudi Arabia

This study employs a combined mode matching technique and Galerkin approach to analyze fluid–structure coupled wave interactions a an elastic plate bounded waveguide containing height variation. The dynamical response of plate coupled with the acoustics govern higher order derivative involving boundary value problem. The associated eigenfunctions are non-orthogonal and the system underlies non-Sturm–Liouville system. The Galerkin approach is adopted to model the vibrational response of an elastic plate, while the continuity conditions at the fluid–structure interface are applied to get linear algebraic systems which are truncated and solved numerically. Results confirm power conservation, with reflected and transmitted powers summing to unity across all frequencies. For structure-borne modes, transmission dominates at lower frequencies but fluctuates near cut-on frequencies, while reflection dominates fluid-borne modes due to impedance mismatch. The model's accuracy is validated by adherence to power conservation and agreement with the tailored-Galerkin method, establishing a reliable framework for analyzing wave energy propagation in coupled systems. © 2025 The Authors

关键词： Flexible waveguide Fluid–structure coupling Galerkin approach Generalized orthogonality relation Mode-matching method

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ON NETWORK-BASED KERNEL METHODS FOR PROTEIN-PROTEIN INTERACTIONS WITH APPLICATIONS IN PROTEIN FUNCTIONS PREDICTION

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Journal of Systems Science & Complexity 2010年第5期23卷 917-930页

作者： Limin LI Waiki CHING Yatming CHAN Hiroshi MAMITSUKA Department of Mathematics Xi'an Jiaotong University Xi'an 710049 China Advanced Modeling and Applied Computing Laboratory Department of Mathematics The University of Hong Kong Pokfularn Road Hong Kong China Bioinformatics Center Institute for Chemical Research Kyoto University Gokasho Uji Kyoto 611-0011 Japan

Predicting protein functions is an important issue in the post-genomic era. This paper studies several network-based kernels including local linear embedding （LLE） kernel method, diffusion kernel and laplacian kernel to uncover the relationship between proteins functions and protein-protein interactions （PPI）. The author first construct kernels based on PPI networks, then apply support vector machine （SVM） techniques to classify proteins into different functional groups. The 5-fold cross validation is then applied to the selected 359 GO terms to compare the performance of different kernels and guilt-by-association methods including neighbor counting methods and Chi-square methods. Finally, the authors conduct predictions of functions of some unknown genes and verify the preciseness of our prediction in part by the information of other data source.

关键词： Diffusion kernel kernel method Laplacian kernel local linear embedding (LLE) kernel protein function prediction support vector machine.

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Decoding the Functional Interactome of Non-model Organisms with PHILHARMONIC 29th

Decoding the Functional Interactome of Non-model Organisms...

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29th International Conference on Research in Computational Molecular Biology, RECOMB 2025

作者： Sledzieski, Sam Versavel, Charlotte Singh, Rohit Ocitti, Faith Devkota, Kapil Kumar, Lokender Shpilker, Polina Roger, Liza Yang, Jinkyu Lewinski, Nastassja Putnam, Hollie Berger, Bonnie Klein-Seetharaman, Judith Cowen, Lenore Center for Computational Biology Flatiron Institute New YorkNY United States Department of Computer Science Tufts University MedfordMA United States Departments of Biostatistics and Bioinformatics Duke University DurhamNC United States School of Biotechnology Faculty of Applied Sciences and Biotechnology Shoolini University Himachal Pradesh Solan173229 India School of Molecular Sciences and School of Ocean Futures Arizona State University TempeAZ United States Department of Mechanical Engineering Seoul National University Seoul Korea Republic of Department of Chemical and Life Science Engineering Virginia Commonwealth University RichmondVA United States Department of Biological Sciences University of Rhode Island KingstonRI United States Computer Science and Artificial Intelligence Laboratory and Department of Mathematics MIT CambridgeMA United States School of Molecular Sciences and College of Health Solutions Arizona State University PhoenixAZ United States

ISBN: (纸本)9783031902512

We introduce PHILHARMONIC, a computational framework that couples deep learning de novo network inference with robust unsupervised spectral clustering algorithms to uncover functional relationships and high-level organization in non-model organisms. Our novel clustering approach produces highly informative functional modules by de-noising the predicted network. We also develop a novel algorithm called ReCIPE, which aims to reconnect disconnected clusters, increasing functional enrichment and biological interpretability. We initially perform remote homology-based functional annotation by leveraging hmmscan and GODomainMiner to assign initial functions to proteins at large evolutionary distances;our clusters then enable us to newly assign functions to uncharacterized proteins through "function by association." We validate the ability of PHILHARMONIC to recover gold-standard functional enrichments in the well-annotated fruit fly D. melanogaster, and apply it to investigate stress response in the reef-building coral P. damicornis and its algal symbiont C. goreaui. Easy to run end-to-end and requiring only a sequenced proteome, PHILHARMONIC is an engine for biological hypothesis generation and discovery in non-model organisms. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Deep learning

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Boundedness and Positivity Preserving Numerical Analysis of a Fuzzy-Parameterized Delayed Model for Foot and Mouth Disease Dynamics

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Computer Modeling in Engineering & Sciences 2024年第12期141卷 2527-2554页

作者： Muhammad Tashfeen Fazal Dayan Muhammad Aziz ur Rehman Thabet Abdeljawad Aiman Mukheimer Department of Mathematics School of ScienceUniversity of Management and TechnologyLahore54000Pakistan Department of Mathematics and Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Department of Medical Research China Medical UniversityTaichung40402Taiwan Department of Mathematics and Applied Mathematics School of Science and TechnologySefakoMakgatho Health Sciences UniversityGa-Rankuwa0208South Africa Center for Applied Mathematics and Bioinformatics(CAMB) Gulf University for Science and TechnologyHawally32093Kuwait

Foot-and-mouth disease(FMD)is a viral disease that affects cloven-hoofed animals including cattle,pigs,and sheep,hence causing export bans among others,causing high economic losses due to reduced *** global effect of FMD is most felt where livestock rearing forms an important source of *** is therefore important to understand the modes of transmission of FMD to control its spread and prevent its *** work intends to address these dynamics by including the efficacy of active migrant animals transporting the disease from one area to another in a fuzzy mathematical modeling *** models of epidemics are determinable with a set of deterministic parameters and this does not reflect on real-life scenarios as observed in *** theory is used in this model as it permits the inclusion of uncertainties in the model;this makes the model more of a reality regarding disease transmission.A time lag,in this case,denotes the incubation period and other time-related factors affecting the spread of FMD and,therefore,is added to the current model for *** that purpose,the analysis of steady states and the basic reproduction number are performed and,in addition,the stability checks are conveyed in the fuzzy *** the numerical solution of the model,we derive the Forward Euler Method and the fuzzy delayed non-standard finite difference(FDNSFD)*** studies of the FDNSFD scheme are performed for convergence,non-negativity,boundedness,and consistency analysis of the numerical projection to guarantee that the numerical model is an accurate discretization of the continuous dynamics of FMD transmission over *** the following simulation study,we show that the FDNSFD method preserves the characteristics of the constant model and still works if relatively large time steps are employed;this is a bonus over the normal finite difference *** study shows how valuable it is to adopt fuzzy theory and time delays whe

关键词： FMD Virus delay epidemic model fuzzy parameters stability consistency

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Exploring the enigmatic interplay between polymers and nanoparticles in a non-Newtonian viscoelastic fluid

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Chinese Journal of Chemical Engineering 2024年第11期75卷 161-169页

作者： R.Khan A.Alameer M.Afraz A.Ahmad R.Nawaz Y.Khan Dipartimento Di Matematica E Fisica Universita degli studi della Campania Luigi VanvitelliCaserta 81100Italy Department of Mathematics University of Hafr Al-BatinHafr Al-Batin 31991Saudi Arabia Department of Mathematics COMSATS University IslamabadIslamabad 44000Pakistan Center for Applied Mathematics and Bioinformatics(CAMB) Gulf University for Science and TechnologyHawally 32093Kuwait

Non-Newtonian fluids have variable viscosity in response to shear rate,and the presence of polymers and nanoparticles further modifies their flow *** this paper,the effects of polymers and nanoparticles on mass and heat transfer control,drag reduction,boundary layer flow development in a polymeric finitely extensible nonlinear elastic-Peterlin(FENE-P)fluid,and the significance of nanoscience in modern day life are *** examine the behavior of polymer additives by utilizing a dispersion model in conjunction with the polymeric FENE-P *** work includes a comparison with Cortell's earlier work,which only looked at the behavior of polymer’s inclusion into the base *** research investigates numerically how the inclusion of polymers and nanoparticles into the base fluid reduces drag while increasing heat and mass *** observed variations in skin friction,reduced Nusselt,and Sherwood numbers indicate an intriguing correlation between the rates of heat and mass transport and surface *** precisely,as the heat and mass transfer efficiency improve,the surface encounters less resistance,which is commonly referred to as *** summary,the research highlights the capability of polymers and nanoparticles to effectively modify fluid dynamics,minimize drag,and enhance mass and heat transfer inside the flow region.

关键词： Polymers FENE-P model Nanofluids Radiative heat flux Flow and heat transfer Numerical solution

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A Dynamical Study of Modeling the Transmission of Typhoid Fever throughDelayed Strategies

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Computer Modeling in Engineering & Sciences 2024年第11期141卷 1419-1446页

作者： Muhammad Tashfeen Fazal Dayan Muhammad Aziz Ur Rehman Thabet Abdeljawad Aiman Mukheimer Department of Mathematics School of ScienceUniversity of Management and TechnologyLahore54000Pakistan Department of Mathematics and Sciences Prince Sultan UniversityP.O.Box 66833Riyadh11586Saudi Arabia Department of Medical Research China Medical UniversityTaichung40402TaiwanChina Department of Mathematics and Applied Mathematics School of Science and TechnologySefakoMakgatho Health Sciences UniversityGa-Rankuwa0208South Africa Center for Applied Mathematics and Bioinformatics(CAMB) Gulf University for Science and TechnologyHawally32093Kuwait

This study analyzes the transmission of typhoid fever caused by Salmonella typhi using a mathematical model thathighlights the significance of delay in its *** delays can affect the nature of patterns and slow downthe emergence of patterns in infected population *** analyzed model is expanded with the equilibriumanalysis,reproduction number,and stability *** study aims to establish and explore the non-standardfinite difference(NSFD)scheme for the typhoid fever virus transmission model with a time *** addition,the forward Euler method and Runge-Kutta method of order 4(RK-4)are also applied in the present *** significant properties,such as convergence,positivity,boundedness,and consistency,are explored,and theproposed scheme preserves all the mentioned *** theoretical validation is conducted on how NSFDoutperforms other methods in emulating key aspects of the continuous model,such as positive solution,stability,and equilibrium about ***,the above analysis also shows some of the limitations of the conventional finitedifference methods,such as forward Euler and RK-4 in simulating such critical *** becomes moreapparent when using larger *** indicated that NSFD is beneficial in identifying the essential characteristicsof the continuous model with higher accuracy than the traditional approaches.

关键词： Typhoid virus delay epidemic model stability consistency global stability

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