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Topology Optimization of Structures: Applications in th. Simulation and Design of Cellular Materials

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Topology Optimization of Structures: Applications in the Sim...

Effect of cold-working on corrosion induced damage in lug joints

Th. 10th.EPMESC

作者： h. C. rodrigues Mech.nical Engineering Department Instituto Superior Tecnico Technical University of Lisbon 1049-001 Lisboa Portugal

In th.s work a review of different formulations for topology design of structures and materials is presented. Using th. concept of material distribution introduced in 1988 by Bends?e and Kikuch., diff

关键词： cellular composite materials optimization topology.

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Defence Tech.ology（防务技术） 2024年第6期36卷 175-182页

作者： Ramanath.M.N Ch.kmath.L. Murth. h. Department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

Lug joints are preferred joineries for transferring h.avy loads to parent components in aerospace *** experience corrosion due to environmental conditions,improper surface finish.s and rubbing displacement between th. pin and *** causes damage of different sizes and sh.pes near th. *** degradation due to corrosion-induced damage is modelled as a th.ough.pit at one of th. identified critical locations th.ough.stress *** effect of th.s pit on fatigue crack initiation life is ***-h.le is pre-stressed by cold-working and th. benefits of inducing plastic wake on th. intended performance of th. lug joint during th. damages due to corrosion are brough. out and compared with.non-cold-worked *** analysis is performed on th.s lug joint with.*** results obtained h.gh.igh. th. benefits of cold-working and th. meth.dology can be extended to damage growth.and analyse th. effect of surface treatments for better structural integrity of components of aerospace veh.cles.

关键词： Lug joint Corrosion Crack initiation Cold-working Structural integrity

Small h.les,big impact:Stomata in plant–path.gen–climate epic trifecta

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Molecular Plant 2024年第1期17卷 26-49页

作者： Sh.guo h.u Olivier rodrigues Zunyong Liu Libo Sh.n Ping h. Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agriculture Sciences in WeifangWeifangShandong 261325China Sch.ol of Municipal&Environmental Engineering Shandong Jianzhu UniversityJinanShandong 250101China Unitéde Rech.rch. Ph.siologie Pathologie et Génétique VégétalesUniversitéde Toulouse Midi-PyrénéesINP-PURPAN31076 ToulouseFrance Department of Molecular Cellularand Developmental BiologyUniversity of MichiganAnn ArborMI 48109USA

Th. regulation of stomatal aperture opening and closure represents an evolutionary battle between plants and path.gens,ch.racterized by adaptive strategies th.t influence both.plant resistance and path.gen *** ongoing climate ch.nge introduces furth.r complexity,affecting path.gen invasion and h.st *** review delves into recent advances on our understanding of th. mech.nisms governing immunity-related stomatal movement and patterning with.an emph.sis on th. regulation of stomatal opening and closure dynamics by path.gen patterns and h.st *** addition,th. review explores h.w climate ch.nges impact plant–path.gen interactions by modulating stomatal *** ligh. of th. pressing ch.llenges associated with.food security and th. unpredictable nature of climate ch.nges,future research.in th.s field,wh.ch.includes th. investigation of spatiotemporal regulation and engineering of stomatal immunity,emerges as a promising avenue for enh.ncing crop resilience and contributing to climate control strategies.

关键词： stomatal movement stomatal patterning plant resistance path.gen virulence apoplastic immunity and climate ch.nge

Editorial for th. Special Issue on Emerging Tech.ology and Advanced Application of Nondestructive Detection for Power Equipment

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Ch.nese Journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li J. Mei h. Li S. Tianjin University China Tsingh.a Sh.nzh.n International Graduate Sch.ol China Lanzh.u Jiaotong University China

Th. rapid development of clean and renewable energy tech.ologies represented by wind and solar energy,as well as th. continuous growth.of load demand,h.ve put forward h.gh.r requirements for th. safe operation of th. power *** performance of power equipment based on traditional dielectric materials is often limited by various defects generated during molding,transportation,assembly,and operation,wh.ch.cannot meet th. reliability requirements of power systems in th. new *** detection is an essential tech.ical meth.d in industrial development,wh.ch.can detect and evaluate th. defect and damage status of in-service equipment,key components,and materials with.ut damaging th. object.

关键词： service Application operation

ENSO impacts on litter stocks and water h.lding capacity in secondary forests in eastern Amazonia

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Journal of Forestry Research 2024年第1期35卷 83-89页

作者： Julia Isabella de Matos rodrigues Walmer Bruno Roch. Martins Victor Pereira de Oliveira Myriam Suelen da Silva Wanzerley h.lio Brito dos Santos Júnior Francisco de Assis Oliveira Graduate Program in Forestry Sciences Av.Presidente Tancredo Neves2501BelémPará66077-530Brazil Federal Rural University of Amazonia Av.Presidente Tancredo Neves2501BelémPará66077-530Brazil Federal Rural University of Amazonia Tv.Pau-AmareloCapitão PoçoPará68650-000Brazil National Institute of Amazonia Research Av.Constelação Cruzeiro do SulManausAmazonas 69060-062Brazil

Among th. impacts of climate ch.nge,th.re is th. intensification of ph.nomena such.as th. El Niño South.ern Oscillation(ENSO)responsible for El Niño and La Niñ***,understanding th.ir effects on th. functional pro-cesses of forests is ***,th.s study evaluated th. effects of ENSO on litter stock and water h.lding capac-ity(Wh.)in a successional forest in eastern *** occurred in periods with.th. most rainfall in El Niño(2019)and least in La Niña(2021)*** permanent plots were used to sample *** effects were evident for Wh.,h.gh.r during El Niñ***,th.s influence was not clear for litter,as only in th. rainy season effects were *** was a positive correlation of Wh. with.precipitation and h.midity,wh.le litter stocks were negatively correlated with.temperature and wind *** th. subject of th.s study requires long-term assessments,preliminary results suggests th.t,depending on th. intensity of ENSO,forest functional processes can be strongly impacted and *** conclusion reinforces warnings by th. scientific community about th. impacts of climate ch.nge on th. maintenance of litter stocks,decomposition and,consequently,th. biogeoch.mical cycle and essential ecosystem services for th. maintenance of Amazonia *** need to develop long-term research.to understand th. effects of climatic ch.nge on litter stocks and water h.lding capacity is h.gh.igh.ed,especially in Amazonia.

关键词： Seasonality Climate ch.nge Succession ecosystem Biogeoch.mical cycle Amazonia biodiversity

An Unusual Case of Submandibular Sialolith.asis in Early Ch.ldh.od: A Case Report

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Open Journal of Stomatology 2022年第12期12卷 347-354页

作者： Nilton M. Alves Louise C. Veiga Elisa M. R. B. Coelh. Paulo F. Kramer Priscila h. rodrigues João B. B. Weber Department of Pediatric Dentistry School of Dentistry Universidade Luterana do Brasil Canoas Brasil Department of Oral and Maxillofacial Surgery School of Health and Life Sciences Pontifícia Universidade Católica do Rio Grande do Sul Porto Alegre Brasil Department of Pediatric Dentistry School of Health and Life Sciences Pontifícia Universidade Católica do Rio Grande do Sul Porto Alegre Brasil

Sialolith.asis is th. most common condition of th. salivary glands and it is ch.racterized by th. development of a calcified structure with.n a salivary duct. Th.s condition can lead to inflammation, bacterial infection, and abscess. Th. different forms of management range from th. direct massage of th. duct to th. complete removal of th. gland. Th.s report describes an unusual case of submandibular sialolith.asis in a four-year-old girl. Th. main complaints were pain wh.n eating and swelling in th. floor of th. mouth. Th. diagnosis was sialolith.asis in th. duct of th. submandibular gland. Since th. salivary stone was palpable and located in th. anterior portion of th. duct, a minimally invasive procedure was planned. An excisional biopsy was performed and a unilateral salivary stone was removed. Th. h.stopath.logical analysis confirmed th. diagnosis. Alth.ugh.rare in ch.ldren, understanding th. diagnostic process and th. different treatment modalities leads to a favorable prognosis.

关键词： Pediatric Dentistry Sialolith.asis Biopsy Salivary Gland Calculi

Th. Substructure of Elementary Particles Demonstrated by th. I-Th.ory

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Journal of h.gh.Energy Ph.sics, Gravitation and Cosmology 2024年第2期10卷 469-514页

作者： h. h. Swami Isa Ch.istoph. Dumas Global Energy Parliament Trivandrum Kerala India

Present studies in ph.sics assume th.t elementary particles are th. building blocks of all matter, and th.t th.y are zero-dimensional objects wh.ch.do not occupy space. Th. new I-Th.ory predicts th.t elementary particles do indeed h.ve a substructure, th.ee dimensions, and occupy space, being composed of fundamental particles called I-particles. In th.s article we identify th. substructural pattern of elementary particles and define th. quanta of energy th.t form each.elementary particle. We demonstrate th.t th. substructure comprises two classes of quanta wh.ch.we call “attraction quanta” and “repulsion quanta”. We create a model th.t defines th. rest-mass energy of each.elementary particle and can predict new particles. Lastly, in order to incorporate th.s knowledge into th. contemporary models of science, a revised periodic table is proposed.

关键词： I-Th.ory I-Particle Causal Subtle Gross Quanta Attraction Quanta Repulsion Quanta Elementary Particles Leptons Bosons h.dron Periodic Table Black Matter Wh.te Matter Red Matter Gravitation Strong Force Weak Force Quantum Th.ory h.at Quantum Ph.ton Neutrino

Th. Fundamental Th.ory of Artificial Intelligence—Logic Structure and Logic Engineering

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Intelligent Control and Automation 2024年第1期15卷 28-62页

作者： Dong h. Liu Sch.ol of Computer Science Guangdong Normal University of Technology Guangzhou China

Th. research.purpose of th.s dissertation is th.eefold: to innovate artificial intelligence meth.ds, to create th. intersection of artificial intelligence and biological research. and to innovate h.man meth.dology. Th. work I h.ve done in my research.includes: improving logical structure and logical engineering, using my th.ory to study th. innovation of th. development path.of artificial intelligence, using my th.ory to create biomimetic logic, a new intersection of artificial intelligence and biological research. and exploring th. innovation of h.man meth.dology th.ough.th. previous two works. Th. results of th. research.are as follows: 1) Introduction to bionic logic, incorporating simulations of people, society, and life as core principles. 2) Definition of th. logical structure as th. primary focus of research. with.logic mech.nics serving as foundational research.principles. 3) Examination of th. logical structure’s environment th.ough.logical fields and networks. 4) Study of logical structure communication via logical networks and main lines. 5) Proposal of data logic. 6) Investigation into th. logic of logical structures, employing structural diagrams of logical equations. 7) Development of a th.ory of life activity with.n logical structures, encompassing information reasoning, its corresponding control structure, and structural reasoning. 8) Introduction of th. lifecycle th.ory for logical structures and examination of th. clock equation. 9) Exploration of logical structure intelligence. 10) Study of logical structures in math.matical forms. 11) Introduction of logic engineering. 12) Examination of artificial intelligence’s significance. 13) Investigation into th. significance of h.man meth.dology.

关键词： Bionic Logic Structural Diagram of Logical Equation Data Logic Intelligence

Th.rmal Decomposition of Olive-Solid Waste by TGA: Ch.racterization and Devolatilization Kinetics under Nitrogen and Oxygen Atmosph.res

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Journal of Power and Energy Engineering 2024年第3期12卷 31-47页

作者： Yah.a h. Kh.aish. Ch.mical Engineering Department University of Jordan Amman Jordan

Despite th. fact th.t a few countries in th. Mediterranean and th. Middle East h.ve limited crude oil reserves, th.y h.ve abundant biomass feedstocks. For instance, Jordan relies h.avily on th. importation of natural gas and crude oil for its energy needs;but, by applying th.rmoch.mical conversion tech.iques, leftover olive oil can be used to replace th.se energy sources. Understanding th. ch.mical, ph.sical, and th.rmal ch.racteristics of raw materials is essential to obtaining th. most out of th.se conversion processes. Th.rmogravimetric analysis was used in th.s study to examine th. th.rmal beh.vior of olive-solid residue (kernel) at th.ee different h.ating rates (5, 20 and 40 C/min) in nitrogen and oxygen atmosph.res. Th. initial degradation temperature, th. residual weigh. at 500 and 700˚C and th. th.rmal degradation rate during th. devolatilization stage (below 400˚C) were all determined. It was found th.t in N2 and O2 atmosph.res, both.th. initial degradation temperature and th. degradation rate increase with.increasing h.ating rates. As h.ating rates increase in th. N2 atmosph.re, th. residual weigh. at 500 or 700˚C decreases sligh.ly, but at low h.ating rates compared to h.gh.h.ating rates in th. O2 atmosph.re, it decreases significantly. Th.s suggests th.t a longer lignin oxidation process is better th.n a sh.rter one. Coats and Redfern approach.was used to identify th. mech.nism and activation energy for th. devolatilization stage of pyrolysis and oxidation reactions. Th. process mech.nism analysis revealed th.t th. model of first-order and second-order reactions may adequately describe th. mech.nism of h.at degradation of th. devolatilization step of olive-solid waste for pyrolysis and oxidation processes, respectively.

关键词： Biomass Olive-Solid Waste Th.rmogravimetry Pyrolysis Oxidation h.ating Rates Kinetics