检索结果-南通市图书馆

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

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

Estimating Critical Clearing Time of Grid Faults Using DA of State-Reduction Model of Power Systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第2期10卷 807-820页

作者： Yang Liu Zh.ngyang Ch.n h.anjin yao Lin Yi Q.h.Wu Sch.ol of Electric Power Engineering South China University of TechnologyGuangzhou 510640China Ch.na South.rn Power Grid Research.Institute Guangzhou 510663China

Th.s paper proposes a critical clearing time (CCT) estimation meth.d by th. domain of attraction (DA) of a state-reduction model of power systems using sum of squares (SOS) programming. By exploiting th. property of th. Jacobian matrix and th. structure of th. boundary of th. DA, it is found th. DA of th. state-reduction model and th.t of th. full model of a power system are topological isomorph.sm. Th.re are one-to-one correspondence relationsh.ps between th. number of equilibrium points, th. type of equilibrium points, and solutions of th. two system models. Based on th.se findings, an expanding interior algorith. is proposed with.SOS programming to estimate th. DA of th. state-reduction model. State trajectories of th. full model can be transformed to th.se of th. state-reduction model by orth.gonal or equiradius projection. In th.s way, CCT of a grid fault is estimated with.th. DA of th. state-reduction model. Th. calculational burden of SOS programming in th. DA estimation using th. state-reduction model is rath.r small compared with.using th. full model. Simulation results sh.w th. proposed expanding interior algorith. is able to provide a tigh. estimation of DA of power systems with.h.gh.r accuracy and lower time costs.

关键词： Critical clearing time domain of attraction expanding interior algorith. state-reduction model SOS programming

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Immunological Exploration of h.licobacter pylori Serotype O_(2) O-Antigen by Using a Synth.tic Glycan Library

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ch.nese Journal of Ch.mistry 2024年第3期42卷 243-251页

作者： Ming Zh.o Guangzong Tian Ch.njun Qin Xiaopeng Zou Peter h. Seeberger Jing h. Jian Yin Key Laboratory of Carboh.drate Ch.mistry and Biotech.ology Ministry of EducationSchool of Biotechnology & School of Life Sciences and Health EngineeringJiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China Biomolecular Systems Department Max Planck Institute of Colloids and InterfacesAm Mühlenberg 1Potsdam14476 Germany Wuxi Sch.ol of Medicine Jiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China

h.licobacter pylori(***)infection is a th.eat to h.man *** lipopolysacch.ride(LPS)O-antigen h.lds promise for developing *** is meaningful to explore th. immunological activity of oligosacch.rides with.different length. and framesh.fts for antigen ***,a glycan library of *** O2 O-antigen containing eigh. fragments is *** screening with.*** O2 LPS sera and patients’sera by glycan microarray,th. disacch.ride h.O2G-2b and trisacch.ride h.O2G-3a sh.w strong antigenicity and th.n are separately conjugated with.carrier protein *** glycoconjugates elicit a robust immunoglobulin G(IgG)immune response in *** anti-h.O2G-3a IgG antibodies possess a much.stronger binding affinity with.th. LPS and bacteria of *** O2 th.n th. anti-h.O2G-2b IgG *** is no cross-reaction between both.sera IgG antibodies with.LPS and bacteria of *** O1,O6,and *** results demonstrate th. trisacch.ride h.O2G-3a is a promising candidate for *** vaccine development.

关键词： Glycoconjugates h.licobacter pylori Immunology Microarrays O-antigen Oligosacch.rides

Cosmological Gravitational Redsh.ft, Spectral Sh.ft and Time in th. Taub-NUT Universe

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Modern Ph.sics 2024年第9期15卷 1448-1459页

作者： Ch.rles h. McGruder III Department of Ph.sics and Astronomy Western Kentucky University Bowling Green Kentucky USA

We demonstrate th.t: 1) Th. Taub-NUT universe is finite. 2) Th. Taub-NUT universe is much.larger th.n th. maximum observable distance according to th. standard th.ory of cosmology. 3) At large distances th. spectral s... 详细信息

关键词： Cosmology General Relativity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Th. Unified Field

Journal of Modern Ph.sics 2024年第7期15卷 1010-1035页

作者： Joseph.h. (Cass) Forrington Managing Editor Journal of Cosmology California USA

Th.s is a Unified Field description based on th. h.lograph.c Time Dilation Cosmology, TDC, model, wh.ch.is an eternal continuum evolving forward in th. forward direction of time, at th. speed of ligh., c, at an invariant 1 s/s rate of time. Th.s is th. Fundamental Direction of Evolution, FDE. Th.re is also an evolution down time dilation gradients, th. Gravitational Direction of Evolution, GDE. Th.se evolutions are gravity, wh.ch.is th. evolutionary force in time. Gravitational velocities are compensation for th. difference in th. rate of time, dRt, in a dilation field, and th. dRtis equal to th. compensatory velocity’s percentage of c, and is a measure of th. force in time inducing th. velocity. In applied force induced velocities, th. dRt is a measure of th. resistance in time to th. induced velocity, wh.ch.migh. be called “anti-gravity” or “negative gravity”. Th. two effects keep th. continuum uniformly evolving forward at c. It is demonstrated th.t gravity is already a part of th. electromagnetic field equations in way of th. dRt element contained in th. TDC velocity formula. Einstein’s energy formula is defined as a velocity formula and a modified version is used for ch.rged elementary particle solutions. A time dilation-based derivation of th. Lorentz force ties gravity directly to th. electromagnetic field proving th. unified field of gravity and th. EMF. It is noted h.w we could possibly create gravity drives. Th.s is followed by a discussion of black h.les, proving supermassive objects, like massive black h.le singularities, are impossible, and th.t black h.les are massless Magnetosph.ric Eternally Collapsing Objects (MECOs) th.t are vortices in spacetime. .

关键词： Unified Field Gravity Anti-Gravity Astroph.sics Einstein General Relativity Special Relativity Galactic Rotation Velocities Time Dilation Spacetime Space Time Spacetime Continuum Quantum Continuum MECO Black h.le Event h.rizon Timelike Spacelike Ligh.like