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

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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

Cascade Catalysts Based on Colloidal Engineering

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CCS Ch.mistry 2024年第9期6卷 2150-2161页

作者： Ch.n Ch.n Ch.n Ken Wong h.i Ch.n Nicole Janoszka Giada Quintieri Andréh.grösch.l Sch.ol of Ch.mistry and Ch.mical Engineering Shanghai Jiao Tong University200240 Shanghai Sch.ol of Ch.mistry University of New South Wales(UNSW)SydneySydney NSW 2052 Ph.sical Ch.mistry and Center for Soft Nanoscience University of MünsterCorrensstraße 28-3048149 Münster

We see significant progress in th. preparation of nanoreactors th.t h.st incompatible catalysts for cascade reactions,yet th.ir preparation typically requires specialized,multistep synth.tic ***,we utilize core-satellite microparticles as a versatile strategy for th. site isolation of catalysts in core and *** core-satellite clusters are prepared by mixing specific amounts of negatively ch.rged core microparticles(e.g.,acid catalyst)with.positively ch.rged satellites(e.g.,base catalyst).Core and satellite are made from incompatible polymers allowing solvent-annealing of clusters into different morph.logies(raspberry,patch.,and core-sh.ll)wh.le maintaining site isolation of th. *** core-satellite microparticles sh.w very good catalytic activity in a model one-pot acid/base cascade reaction with.subtle differences regarding particle *** microparticles th.reby demonstrated th. h.gh.st reaction rate and yield,likely due to an alleviated diffusion path.ay for th. ***,we sh.w th.t th.s colloidal engineering strategy can be extended to multifunctional microparticles suitable to perform multistep cascade reactions in one pot.

关键词： cascade catalysts compartmentalization colloidal engineering emulsion polymerization multifunctional particles

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

Mast cell activation syndrome:An up-to-date review of literature

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World Journal of Clinical Pediatrics 2024年第2期13卷 104-113页

作者： ÖnerÖzdemir Gökçe Kasımoğlu Ayşegül bak h.seyin Sütlüoğlu Süreyya Savaşan Department of Pediatric Allergy and Immunology Sakarya UniversitySakaryaAdapazarı54100Türkiye Department of Pediatrics Sakarya UniversitySakaryaAdapazarı54100Türkiye Department of Pediatrics Kocaeli City HospitalKocaeli 50123Türkiye Department of Pediatrics Children’s Hospital of MichiganHematology/OncologyCentral Michigan University College of MedicineMount PleasantMI 48859United States Barbara Ann Karmanos Cancer Institute Wayne State UniversityDetroitMI 12345United States

Mast cells are a subtype of wh.te blood cells and are involved in th. immune *** cells contain many ch.mical substances called mediators,wh.ch.are involved in th. allergic *** fact th.t mast cells play a role in many events th.t require urgent intervention,especially anaph.laxis,h.s led to a more detailed study of th.se *** diseases also caused by dysfunctions of mast cells h.ve been examined in many *** instance,mast cell activation syndrome is known as an augmented number of cells due to decreased cell death.resulting in clinical symptoms affecting many *** main common symptoms include flush.ng,h.potension,urticaria,angioedema,h.adach.,vomiting and *** th. underlying mech.nism is not yet clearly known,we aim to review th. literature in a broad perspective and bring togeth.r th. existing knowledge in th. ligh. of th. literature due to th. diversity of its involvement in th. body and th. fact th.t it is a little known syndrome.

关键词： Mast cell Mast cell activation syndrome Tryptase h.stamine

Design and implementation of th. monoch.omator sh.elding for th. cold neutron spectrometers XINGZh. and BOYA

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Ch.nese Ph.sics B 2024年第5期33卷 96-102页

作者：汪晋辰刘娟娟徐大业 Florian grünauer 郝丽杰刘蕴韬张红霞程鹏鲍威 Laboratory for Neutron Scattering and Beijing Key Laboratory of Optoelectronic Functional Materials and MicroNano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China Ph.sics Consulting Zorneding 85604Germany Ch.na Institute of Atomic Energy Beijing 102413China Department of Ph.sics City University of Hong KongKowloon 999077China Center for Neutron Scattering City University of Hong KongKowloon 999077China

An innovative monoch.omator sh.elding is designed and implemented for th. cold neutron spectrometers XINGZh. and BOYA operated by Renmin University of Ch.na at Ch.na Advanced Research.*** Monte Carlo simulations and careful mech.nical designs,a sh.elding configuration h.s been successfully developed to satisfy safety requirements of below 3μSv/h.dose rate at its exterior,meanwh.le fulfilling space,floor load and nonmagnetic *** materials are utilized to form th. sandwich.type sh.elding walls:th. inner layer of boron carbide rubber,th. middle layer of steel-encased lead and th. outer layer of borated ***-sh.ped liftable sh.elding blocks are incorporated to facilitate a continuous adjustment of th. neutron energy wh.le preventing radiation *** work h.s demonstrated th.t by utilizing composite sh.elding materials,along with.th. sandwich.structure and liftable sh.elding blocks,a compact and ligh.weigh. sh.elding solution can be *** enables th. realization of advanced neutron scattering instruments th.t provide expanded space of measurement,larger energy and momentum coverage,and h.gh.r flux on th. *** sh.elding represents th. first of its kind in neutron scattering instruments in *** its successful operation,it h.s been subsequently employed by oth.r neutron instruments across th. country.

关键词： neutron scattering cold neutron spectrometer monoch.omator sh.elding sandwich.sh.elding structure

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

Analysis of Temperature Trends and Variations in th. Arabian Peninsula’s Upper Atmosph.re

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Atmosph.ric and Climate Sciences 2024年第1期14卷 85-100页

作者： Abdullrah.an h. Magh.abi National Institute for Climate Ch.nge King Abdulaziz City for Science and Technology Riyadh Saudi Arabia

In th.s study, th. trends of upper-air temperatures are analysed by utilising radiosonde observations for th. barometric levels at 700, 500, 300, 200, 150, 100 and 50 h.a from five meteorological stations with.n th. Arabian Peninsula from January 1986 to August 2015. Th. mean month.y variations of th. temperatures at th.se levels are ch.racterised and establish.d. Th. magnitudes of th. annual trends of th. mean temperatures for each.site for th. selected barometric levels are studied and statistically tested using Mann-Kendall rank statistics at different significance levels. Th. temperature trends at different pressure levels sh.w th.t th. upper troposph.re and lower stratosph.re are warming, wh.le th. middle troposph.re is cooling wh.ch.is consistent with.th. findings of oth.r studies. Th. variations in upper air temperature observed in th.s study can be attributed to a range of factors, including increasing greenh.use gas concentrations, ch.nges in atmosph.ric circulation patterns, variations in solar activity, aerosols and volcanic eruptions, and land use and land cover ch.nge.

关键词： Upper-Air Temperature Variability Long-Term Trend Arabian Peninsula Climate Ch.nge Mann-Kendell