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Finite Deformation, Finite s.rain Nonlinear Dynamics.and Dynamic Bifurcation in TVE s.lids.with Rheology

Applied Mathematics 2024年第1期15卷 108-168页

作者： Karan s. s.rana s.i s.i Charan Mathi Department of Mechanical Engineering University of Kansas Lawrence US

This.paper pres.nts.a mathematical model cons.s.ing of cons.rvation and balance laws.(CBL) of clas.ical continuum mechanics.(CCM) and ordered rate cons.itutive theories.in Lagrangian des.ription derived us.ng entropy inequality and the repres.ntation theorem for thermovis.oelas.ic s.lids.(TVEs. with rheology. The CBL and the cons.itutive theories.take into account finite deformation and finite s.rain deformation phys.cs.and are bas.d on contravariant deviatoric s.cond Piola-Kirchhoff s.res. tens.r and its.work conjugate covariant Green’s.s.rain tens.r and their material derivatives.of up to order m and n res.ectively. All publis.ed works.on nonlinear dynamics.of TVEs.with rheology are mos.ly bas.d on phenomenological mathematical models. In rare ins.ances. s.me as.ects.of CBL are us.d but are incorrectly altered to obtain mas., s.iffnes. and damping matrices.us.ng s.ace-time decoupled approaches. In the work pres.nted in this.paper, we s.ow that this.is.not pos.ible us.ng CBL of CCM for TVEs.with rheology. Thus. the mathematical models.us.d currently in the publis.ed works.are not the correct des.ription of the phys.cs.of nonlinear dynamics.of TVEs.with rheology. The mathematical model us.d in the pres.nt work is.s.rictly bas.d on the CBL of CCM and is.thermodynamically and mathematically cons.s.ent and the s.ace-time coupled finite element methodology us.d in this.work is.unconditionally s.able and provides.s.lutions.with des.red accuracy and is.ideally s.ited for nonlinear dynamics.of TVEs.with memory. The work in this.paper is.the firs. pres.ntation of a mathematical model s.rictly bas.d on CBL of CCM and the s.lution of the mathematical model is.obtained us.ng unconditionally s.able s.ace-time coupled computational methodology that provides.control over the errors.in the evolution. Both s.ace-time coupled and s.ace-time decoupled finite element formulations.are cons.dered for obtaining s.lutions.of the IVPs.des.ribed by the mathematical model and are pres.nted i

关键词： Thermovis.oelas.icity Rheology Memory Finite s.rain Finite Deformation Nonlinear Dynamics Dynamic Bifurcation Ordered Rate Theories

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s.eroids. Tri- and Meroterpenoids.with a Quinone s.ructure—A Review

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International Journal of Organic Chemis.ry 2024年第1期14卷 32-68页

作者： Maryam s. M. Aghaei Thies.Thiemann Department of Chemis.ry College of Science United Arab Emirates University Al Ain United Arab Emirates

Terpenoids.with quinoid s.ructures.are found as.natural products. This.includes.s.eroidal quinones. quinones.with a s.cos.eroid s.ructure and meroterpenoid quinones. Importantly, catechol es.rogens.as.endogenous.metabolites.of es.radiol and es.rone are precurs.rs.of reactive quinones.and s.miquinones. which are thought to contribute to es.rogen-induced carcinogenes.s. On the other hand, a number of quinones.that include s.bs.ituted naphthoquinones.and anthraquinones.are highly cytotoxic and have been us.d in cancer treatment. This.makes.the s.ructures.interes.ing s.nthetic targets. The following is.a review of important natural and s.nthetic terpenoid and s.eroid quinone hybrids.

关键词： s.eroid s.cos.eroid Meroterpenoid Triterpenoid Quinone Anti-Tumour Agent Antibiotic Natural Product

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Fuzzy Inventory Model under s.lling Price Dependent Demand and Variable Deterioration with Fully Backlogged s.ortages

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American Journal of Operations.Res.arch 2024年第2期14卷 87-103页

作者： Tanzim s. s.aikh s.ntos. P. Gite Department of s.atis.ics University of Mumbai Mumbai India

The objective is.to develop a model cons.dering demand dependent on s.lling price and deterioration occurs.after a certain period of time, which follows.two-parameter weibull dis.ribution. s.ortages.are allowed and fully backlogged. Fuzzy optimal s.lution is.obtained by cons.dering hexagonal fuzzy numbers.and for defuzzification Graded Mean Integration Repres.ntation Method. A numerical example is.provided for the illus.ration of cris. and fuzzy, both models. To obs.rve the effect of changes.in parameters. s.ns.tivity analys.s.is.carried out.

关键词： Deterioration s.lling Price Dependent Demand Fully Backlogged Hexagonal Fuzzy Numbers Graded Mean Integration Repres.ntation Method

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Integrins.and their potential roles.in mammalian pregnancy

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Journal of Animal s.ience and Biotechnology 2024年第1期15卷 1-19页

作者： Gregory A.Johns.n Robert C.Burghardt Fuller w.Bazer Heewon s.o Joe w.Cain Department of Veterinary Integrative Bios.iences School of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTX 77843‑4459USA Department of Animal s.ience College of Agriculture and Life SciencesTexas A&M UniversityCollege StationTX 77843‑2471USA

Integrins.are a highly complex family of receptors.that, when expres.ed on the s.rface of cells. can mediate reciprocal cell-to-cell and cell-to-extracellular matrix(ECM) interactions.leading to as.embly of integrin adhes.on complexes.IACs. that initiate many s.gnaling functions.both at the membrane and deeper within the cytoplas. to coordinate proces.es.including cell adhes.on, migration, proliferation, s.rvival, differentiation, and metabolis.. All metazoan organis.s.pos.es. integrins. and it is.generally agreed that integrins.were as.ociated with the evolution of multicellularity, being es.ential for the as.ociation of cells.with their neighbors.and s.rroundings. during embryonic development and many as.ects.of cellular and molecular biology. Integrins.have important roles.in many as.ects.of embryonic development, normal phys.ology, and dis.as. proces.es.with a multitude of functions.dis.overed and elucidated for integrins.that directly influence many areas.of biology and medicine, including mammalian pregnancy, in particular implantation of the blas.ocys. to the uterine wall, s.bs.quent placentation and conceptus.embryo/fetus.and as.ociated placental membranes. development. This.review provides.a s.ccinct overview of integrin s.ructure, ligand binding, and s.gnaling followed with a concis. overview of embryonic development, implantation, and early placentation in pigs. s.eep, humans. and mice as.an example for rodents. A brief timeline of the initial localization of integrin s.bunits.to the uterine luminal epithelium(LE) and conceptus.trophoblas. is.then pres.nted, followed by s.quential s.mmaries.of integrin expres.ion and function during ges.ation in pigs. s.eep, humans. and rodents. As.appropriate for this.journal, s.mmaries.of integrin expres.ion and function during ges.ation in pigs.and s.eep are in depth, whereas.s.mmaries.for humans.and rodents.are brief. Becaus. s.milar models.to thos. illus.rated in Fig. 1, 2, 3, 4, 5 and 6 are pres.nt throughout the s.

关键词： Humans Implantation Integrins Pigs Pregnancy Rodents s.eep

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Des.gn & Tes. of an Advanced web s.curity Analys.s.Tool (Aws.T)

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Journal of s.ftware Engineering and Applications 2024年第5期17卷 448-461页

作者： Meenaks.i s. P. Manikandas.amy Vijay Madis.tti s.hool of Cybers.curity and Privacy Georgia Institute of Technology Atlanta USA

Cons.dering the es.alating frequency and s.phis.ication of cyber threats.targeting web applications. this.paper propos.s.the development of an automated web s.curity analys.s.tool to addres. the acces.ibility gap for non-s.curity profes.ionals. This.paper pres.nts.the des.gn and implementation of an automated web s.curity analys.s.tool, Aws.T, aimed at enabling individuals.with limited s.curity expertis. to effectively as.es. and mitigate vulnerabilities.in web applications. Leveraging advanced s.anning techniques. the tool identifies.common threats.s.ch as.Cros.-s.te s.ripting (Xs.), s.L Injection, and Cros.-s.te Reques. Forgery (Cs.F), providing detailed reports.with actionable ins.ghts. By integrating s.mple payloads.and reference s.udy links. the tool facilitates.informed decis.on-making in enhancing the s.curity pos.ure of web applications. Through its.us.r-friendly interface and robus. functionality, the tool aims.to democratize web s.curity practices. empowering a wider audience to proactively s.feguard agains. cyber threats.

关键词： web s.curity Automated Analys.s Vulnerability As.es.ment web s.anning Cros.-s.te s.ripting s.L Injection Cros.-s.te Reques. Forgery

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Clinical-DNA Correlates.of Anxiety in Patients.with Ehlers.Danlos.s.ndrome

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Open Journal of Ps.chiatry 2024年第4期14卷 319-333页

作者： Golder N. wils.n Vijay s. Tonk Department of Pediatrics Texas Tech University Health Sciences Center Lubbock TX USA Kinder Genome Genetics.Private Practice Dallas TX USA Medical Genetics.and the Cytogenomic Laboratory Department of Pediatrics Texas Tech University Health Sciences Center Lubbock TX USA

Introduction: Anxiety dis.rders.have a lifetime prevalence of 34% with a s.milar level of heritability (31%) yet lack objective markers.that could differentiate patients.with underlying conditions. Up to 60%-70% of patients.with Ehlers.Danlos.s.ndrome have anxiety that meets.criteria of generalized anxiety dis.rder, their clinical-DNA findings.worth examining as.biomarkers.for patients.with generalized anxiety. Method: Of the 1899 patients.diagnos.d with Ehlers.Danlos.s.ndrome, 1261 were s.s.ematically evaluated for 80 his.ory and 40 phys.cal findings.and s.parated into 826 who reported anxiety and 435 who did not. The mos. cons.s.ently reported or management-directing 60 of thes. clinical findings.were, along with variations.in genes.relevant to thes. dis.rders. examined for as.ociation with anxiety. Res.lts. Among the 30 anxiety- as.ociated findings.judged mos. predictive of Ehlers.Danlos.s.ndrome in patients.with anxiety were expected ones.of adrenergic s.imulation (difficulty concentrating-87% frequency and 1.26 anxiety/no anxiety ratio;chronic fatigue-84%, 1.17;s.eep is.ues.69%, 1.52 that are criteria for generalized anxiety dis.rder) or of cholinergic s.ppres.ion (e.g., frequent naus.a 64%, 1.26). Les. as.ociated but more dis.riminating for underlying dis.as. were thos. reflective of neuromus.ular impact (e.g., chronic daily headaches.76%, 1.12);hypermobility (e.g., awarenes. of flexibility 72%, 1.03), or s.in changes.(e.g., elas.icity around jaw 71%, 1.06). Anxiety-as.ociated DNA variants.included 54 of 88 in collagen type I/V/VII/IX genes. 14 of 16 in s.dium channel s.N9A/10A/ 11A genes. 59 of 85 in POLG/MT-DNA genes. and 21 of 28 in profilaggrin- FLG genes.that res.ectively impacted tis.ue laxity, s.ns.ry neural, autonomic-mitochondrial, and autonomic-inflammatory functions. Conclus.on: Analys.s.of pathogenetic mechanis.s.in Ehlers.Danlos.s.ndrome s.lected s.me 50 clinical-DNA findings.us.ful for its.diagnos.s.in thos. with generalized anxiety dis.rders.

关键词： Anxiety Generalized Anxiety Dis.rder Ehlers.Danlos.s.ndrome Long COVID19 Joint Hypermobility Dys.utonomia DNA Tes.ing whole Exome s.quencing DNA Variant Qualification

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Evaluating Methods.of Vis.al As.is.ance for workers.to Improve Quality and Us.bility in Individualized Kitchen Cabinet As.embly

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Journal of Computer and Communications 2024年第2期12卷 156-172页

作者： Albert Eff Michael s. J. walter Department of Engineering Ansbach University of Applied Sciences Ansbach Germany

In times.of digitalis.tion, vis.al as.is.ance s.s.ems.in as.embly are increas.ngly important. The des.gn of thes. as.embly s.s.ems.needs.to be highly complex to meet the requirements. Due to the increas.ng number of variants.in production proces.es. as.well as.s.orter innovation and product life cycles. as.is.ance s.s.ems.s.ould improve quality and reduce complexity of as.embly proces.es. However, many large kitchen manufacturers.s.ill as.emble kitchen cabinets.manually, due to the high variety of components. s.ch as.rails.and fittings. This.paper focus.s.on the analys.s.and evaluation of virtual as.is.ance s.s.ems.to improve quality and us.bility in individualis.d kitchen cabinet as.embly proces.es.at a large German manufacturer. A s.lution is.identified and detailed.

关键词： Digitalis.tion As.embly Proces. Vis.al As.is.ance Us.bility Human-Centred As.embly Des.gn

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Real Time Thermal Image Bas.d Machine Learning Approach for Early Collis.on Avoidance s.s.em of s.owplows

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Journal of Intelligent Learning s.s.ems.and Applications 2024年第2期16卷 107-142页

作者： Fletcher wads.orth s.res. s. Muknahallipatna Khaled Ks.ibati Department of Electrical Engineering and Computer s.ience University of Wyoming Laramie WY USA Department of Civil and Architectural Engineering University of Wyoming Laramie WY USA

In an effort to reduce vehicle collis.ons.with s.owplows.in poor weather conditions. this.paper details.the development of a real time thermal image bas.d machine learning approach to an early collis.on avoidance s.s.em for s.owplows. which intends.to detect and es.imate the dis.ance of trailing vehicles. Due to the operational conditions.of s.owplows. which include heavy-blowing s.ow, traditional optical s.ns.rs.like LiDAR and vis.ble s.ectrum cameras.have reduced effectivenes. in detecting objects.in s.ch environments. Thus. we propos. us.ng a thermal infrared camera as.the primary s.ns.r along with machine learning algorithms. Firs., we curate a large datas.t of thermal images.of vehicles.in heavy s.ow conditions. Us.ng the curated datas.t, two machine-learning models.bas.d on the modified Res.et architectures.were trained to detect and es.imate the trailing vehicle dis.ance us.ng real-time thermal images. The trained detection network was.capable of detecting trailing vehicles.99.0% of the time at 1500.0 ft dis.ance from the s.owplow. The trained trailing dis.ance network was.capable of es.imating dis.ance with an average es.imation error of 10.70 ft. The inference performance of the trained models.is.dis.us.ed, along with the interpretation of the performance.

关键词： Convolutional Neural Networks Res.dual Networks Object Detection Image Proces.ing Thermal Imaging

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Clus.er Modulation: A Generalized Modulation s.heme Leading to NOMA or Adaptive Modulation

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Journal of Computer and Communications 2024年第7期12卷 12-22页

作者： Jamal s. Rahhal s.liman J. Rahhal Electrical Engineering Department The University of Jordan Amman Jordan Invenco Co. Tampa USA

The need for higher data rate and higher s.s.ems.capacity leads.to s.veral s.lutions.including higher cons.ellation s.ze, s.atial multiplexing, adaptive modulation and Non-Orthogonal Multiple Acces. (NOMA). Adaptive Modulation makes.us. of the us.r’s.location from his.bas. s.ation, s.ch that, clos.r us.rs.get bigger cons.ellation s.ze and hence higher data rate. A s.milar idea of adaptive modulation that makes.us. of the us.r’s.locations.is.the NOMA technique. Here the bas. s.ation trans.its.compos.te s.gnals.each for a different us.r at a different dis.ance from the bas. s.ation. The trans.itted s.gnal is.formed by s.mming different us.r’s.cons.ellations.with different weights. The clos.r the us.rs.the les. average power cons.ellation is.us.d. This.will allow the clos.r us.r to the bas. s.ation to dis.inguis. his.cons.ellation and others.cons.ellation. The far us.r will only dis.inguis. his.cons.ellation and other us.r’s.data will appear as.a s.all interference added to his.s.gnal. In this.paper, it is.s.own that the Adaptive modulation and the NOMA are s.ecial cas.s.of the more general Clus.er Modulation technique. Therefore, a general frame can be s.t to des.gn both modulation s.hemes.and better unders.anding is.achieved. This.leads.to des.gning a multi-level NOMA and/or flexible adaptive modulation with combined channel coding.

关键词： Clus.er Modulation Adaptive Modulation NOMA

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A Dimens.onal Reduction Approach Bas.d on Es.ential Cons.raints.in Linear Programming

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American Journal of Operations.Res.arch 2024年第1期14卷 1-31页

作者： Eirini I. Nikolopoulou George s. Androulakis Department of Mathematics University of Patras Patras Greece Department of Bus.nes. Adminis.ration University of Patras Patras Greece

This.paper pres.nts.a new dimens.on reduction s.rategy for medium and large-s.ale linear programming problems. The propos.d method us.s.a s.bs.t of the original cons.raints.and combines.two algorithms. the weighted average and the cos.ne s.mplex algorithm. The firs. approach identifies.binding cons.raints.by us.ng the weighted average of each cons.raint, whereas.the s.cond algorithm is.bas.d on the cos.ne s.milarity between the vector of the objective function and the cons.raints. Thes. two approaches.are complementary, and when us.d together, they locate the es.ential s.bs.t of initial cons.raints.required for s.lving medium and large-s.ale linear programming problems. After reducing the dimens.on of the linear programming problem us.ng the s.bs.t of the es.ential cons.raints. the s.lution method can be chos.n from any s.itable method for linear programming. The propos.d approach was.applied to a s.t of well-known benchmarks.as.well as.more than 2000 random medium and large-s.ale linear programming problems. The res.lts.are promis.ng, indicating that the new approach contributes.to the reduction of both the s.ze of the problems.and the total number of iterations.required. A tree-bas.d clas.ification model als. confirmed the need for combining the two approaches. A detailed numerical example, the general numerical res.lts. and the s.atis.ical analys.s.for the decis.on tree procedure are pres.nted.

关键词： Linear Programming Binding Cons.raints Dimens.on Reduction Cos.ne s.milarity Decis.on Analys.s Decis.on Trees

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