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Global practical stabilization of the double integrator system.with an im.erfect sensor and subject to a bounded disturbance

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Control Theory and Technology 2024年第3期22卷 468-478页

作者： Zhiyuan Zhu Yuanlong Li Zongli lin Departm.nt of Autom.tion Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information Processing of Ministry of EducationShanghai 200240China Charles L.Brown Departm.nt of Electrical and Com.uter Engineering University of VirginiaP.0.Box 400743CharlottesvilleVA 22904-4743USA

This paper is concerned with global practical stabilization of the double integrator system.with an im.erfect sensor and subject to an additive bounded output *** im.erfect sensor nonlinearity possesses the nonlinear characteristics of saturation and dead *** of the presence of output dead zone and the additive disturbance,the states cannot be expected to driven into an arbitrarily sm.ll neighborhood of the *** solve the global practical stabilization problem.we proposes a low gain-based linear dynam.c output feedback law,under which the first state enters and rem.ins in a bounded set whose size is depended on the bound of disturbance and the range of dead zone and the second state enters and rem.ins in a pre-specified arbitrarily sm.ll set,both in finite *** results illustrate the effectiveness of our proposed control m.thod.

关键词： Output saturation Disturbance rejection Output dead zone Low gain feedback-linear output feedback Practical stabilization

Piezotronic neurom.rphic devices:principle,m.nufacture,and applications

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International Journal of Extrem. m.nufacturing 2024年第3期6卷 363-385页

作者： Xiangde lin Zhenyu Feng Yao Xiong Wenwen Sun Wanchen Yao Yichen Wei Zhong lin Wang Qijun Sun Departm.nt of Research Shanghai University of Medicine and Health Sciences Affiliated Zhoupu HospitalShanghai 201318People’s Republic of China Beijing Institute of Nanoenergy and Nanosystem. Chinese Academy of SciencesBeijing 101400People’s Republic of China Center on Nanoenergy Research School of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004People’s Republic of China Shandong Zhongke Naneng Energy Technology Co. LtdDongying 257061People’s Republic of China Georgia Institute of Technology AtlantaGA 30332-0245United States of America

With the arrival of the era of artificial intelligence(AI)and big data,the explosive growth of data has raised higher dem.nds on com.uter hardware and *** techniques inspired by biological nervous system. are expected to be one of the approaches to breaking the von Neum.nn *** neurom.rphic devices m.dulate electrical transport characteristics by piezopotential and directly associate external m.chanical m.tion with electrical output signals in an active m.nner,with the capability to sense/store/process inform.tion of external *** this review,we have presented the piezotronic neurom.rphic devices(which are classified into strain-gated piezotronic transistors and piezoelectric nanogenerator-gated field effect transistors based on device structure)and discussed their operating m.chanism. and related m.nufacture ***,we sum.arized the research progress of piezotronic neurom.rphic devices in recent years and provided a detailed discussion on m.ltifunctional applications,including bionic sensing,inform.tion storage,logic com.uting,and electrical/optical artificial ***,in the context of future developm.nt,challenges,and perspectives,we have discussed how to m.dulate novel neurom.rphic devices with piezotronic effects m.re *** is believed that the piezotronic neurom.rphic devices have great potential for the next generation of interactive sensation/m.m.ry/com.utation to facilitate the developm.nt of the Internet of Things,AI,biom.dical engineering,etc.

关键词： piezotronics neurom.rphic devices strain-gated transistors piezoelectric nanogenerators synaptic transistors

A system.tic review on COVID-19 related research in HVAC system.and indoor environm.nt

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Energy and Built Environment

Energy and Built Environm.nt 2024年第6期5卷 970-983页

作者： Yaolin lin Jiajun Wang Wei Yang lin Tian Christhina Candido School of Environm.nt and Architecture University of Shanghai for Science and TechnologyShanghaiChina200093 Faculty of Architecture Building and PlanningThe University of MelbourneMelbourneAustralia3010 School of Engineering RMIT UniversityMelbourneAustralia3000

The on-going COVID-19 pandem.c has wrecked havoc in our society,with short and long-term.consequences to people’s lives and livelihoods-over 651 m.llion COVID-19 cases have been confirm.d with the num.er of deaths exceeding 6.66 *** people stay indoors m.st of the tim.,how to operate the Heating,Ventilation and Air-Conditioning(HVAC)system. as well as building facilities to reduce airborne infections have becom. hot research *** paper presents a system.tic review on COVID-19 related research in HVAC system. and the indoor ***,it reviews the research on the im.rovem.nt of ventilation,filtration,heating and air-conditioning system. since the onset of ***,various indoor environm.nt im.rovem.nt m.asures to m.nim.ze airborne spread,such as building envelope design,physical barriers and vent position arrangem.nt,and the possible im.act of COVID-19 on building energy consum.tion are ***,it provides com.arisons on the building operation guidelines for preventing the spread of COVID-19 virus from.different ***,recom.endations for future studies are provided.

关键词： COVID-19 HVAC system. Facilities m.nagem.nt Building operation guidelines Healthy indoor environm.nts

A Num.rical Calculation Algorithm.of the Inclination Function Based on the Representation of SO(3) Group

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Acta m.them.ticae Applicatae Sinica 2024年第1期40卷 137-148页

作者： Yu-xiao Wei Wen-lin Tang Departm.nt of Geophysics School of Geology Engineering and GeomaticsChang’An UniversityXi’an710064China Key Laboratory of Electronics and Inform.tion Technology for Space System. National Space Science CenterChinese Academy of SciencesBeijing100190China

In the determ.nation of the Earth gravity field in satellite geodesy, the inclination functions represent the projection of data observed along the orbital plane of a satellite orbit into the sphere in the terrestial reference fram.. The inclination functions in this work is studied from.a group theoretical perspective. The inclination functions are proved to generate a representation of the SO(3) group. An orthogonal relation of the inclination functions is derived and som. recurrence relations for the inclination functions are given, based on which an algorithm.to calculate the inclination functions is proposed.

关键词： SO(3)group inclination function satellite geodesy representation of SO(3)

Upcycling electroplating sludge into bioengineering-enabled highly stable dual-site Fe-Ni_(2)P@C electrocatalysts for efficient oxygen evolution

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Nano Research 2024年第8期17卷 6984-6992页

作者： Jiawen Liu Zunpeng Zuo Feng Gao Kai Yi Jiahui lin m.ngye Wang Zhang lin Feng Huang State Key Laboratory of Optoelectronic m.terials and Technologies School of MaterialsSun Yat-Sen UniversityGuangzhou 510275China Departm.nt of Chem.stry City University of Hong KongHong Kong 999077China School of m.tallurgy and Environm.nt Central South UniversityChangsha 410083China Ganjiang Innovation Academ. Chinese Academy of SciencesGanzhou 341000China

The advancem.nt of bim.tallic catalysts holds significant prom.se for the innovation of oxygen evolution reaction(OER)*** from.adsorbate evolution m.chanism.AEm.and lattice oxygen oxidation m.chanism.LOm.,the incorporation of dual active sites has the potential to foster novel OER pathways,such as the coupled oxygen evolution m.chanism.COm.,which can surpass the lim.tations of OER and elevate catalytic *** this study,uniform.y distributed Fe/Ni dual-site Fe-Ni_(2)P@C electrocatalysts are crafted by upcycling m.tals in electroplating sludge via an eco-friendly and sustainable m.crobial engineering *** findings indicate that a substantial num.er of defects em.rge at the Ni2P crystal during the OER process,laying the groundwork for lattice oxygen ***,the displacem.nt of Ni/Fe in the crystal lattice intensifies the asym.etry of the electronic structure at the m.tal active sites,facilitating the deprotonation *** research introduces an innovative paradigm.for the synthesis of effective and robust transition m.tal-based OER catalysts,with im.lications for sustainable energy generation technologies.

关键词： oxygen evolution reaction dual active sites adsorbate evolution m.chanism lattice oxygen m.chanism bioengineering

Presentation of the Berry-Tabor conjecture in Levy plates

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Chinese Physics B 2024年第10期33卷 240-247页

作者： Chao Li Guo-lin Hou School of m.them.tical Sciences Inner Mongolia UniversityHohhot 010021China

The Berry-Tabor(BT)conjecture is a fam.us statistical inference in quantum.chaos,which not only establishes the spectral fluctuations of quantum.system. whose classical counterparts are integrable but can also be used to describe other wave *** this paper,the BT conjecture has been extended to Lévy *** predicted by the BT conjecture,level clustering is present in the spectra of Lévy *** consequence of level clustering is studied by introducing the distribution of nearest neighbor frequency level spacing ratios P(r),which is calculated through the analytical solution obtained by the Ham.ltonian *** work investigates the im.act of varying foundation param.ters,rotary inertia,and boundary conditions on the frequency spectra,and we find that P(r)conform. to a Poisson distribution in all *** reason for the occurrence of the Poisson distribution in the Lévy plates is the independence between m.dal frequencies,which can be understood through m.de functions.

关键词： Berry-Tabor conjecture frequency spectra Ham.ltonian approach Lévy plates

Im.une checkpoint inhibitor-associated gastritis:Patterns and m.nagem.nt

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World Journal of Gastroenterology 2024年第14期30卷 1941-1948页

作者： Jing lin Zhong-Qiao lin Shi-Cheng Zheng Yu Chen Departm.nt of m.dical Oncology Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhou 350000Fujian ProvinceChina Phase I Clinical Trial Ward Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhou 350000Fujian ProvinceChina School of Basic m.dical Sciences Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina

Im.une checkpoint inhibitors(ICIs)are widely used due to their effectiveness in treating various ***-related adverse events(irAEs)are defined as adverse effects resulting from.ICI *** irAEs are a com.on type of irAEs characterized by intestinal side effects,such as diarrhea and colitis,which m.y lead to the cessation of *** irAE gastritis is rarely reported,it m.y lead to serious com.lications such as ***,irAE gastritis is often difficult to identify early due to its diverse *** steroid horm.nes and im.unosuppressants are com.only used to reverse irAEs,the best regim.n and dosage for irAE gastritis rem.ins *** addition,the risk of recurrence of irAE gastritis after the reuse of ICIs should be *** this editorial,strategies such as early identification,pathological diagnosis,m.na-gem.nt interventions,and im.unotherapy rechallenge are discussed to enable clinicians to better m.nage irAE gastritis and im.rove the prognosis of these patients.

关键词： Im.unotherapy Im.une checkpoint inhibitor Im.une-related adverse events Im.une checkpoint inhibitor-related gastritis

Cross-level steam.load sm.othing and optim.zation in industrial parks using data-driven approaches

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Energy and AI 2024年第2期16卷 69-83页

作者： Xiaojie lin Xueru lin Wei Zhong Feiyun Cong Yi Zhou Zhejiang Key Laboratory of Clean Energy and Carbon Neutrality Zhejiang UniversityHangzhouChina Shanghai Institute for Advanced Study Zhejiang UniversityShanghaiChina College of Energy Engineering Zhejiang UniversityHangzhouChina Jiaxing Research Institute Zhejiang UniversityJiaxingChina School of m.chanical Engineering Zhejiang UniversityHangzhouChina

This study focuses on the integrated energy production system.in industrial parks, addressing the problem.of stable load dispatch of equipm.nt under dem.nd fluctuations. A cross-level m.thod for steam.load sm.othing and optim.zation is proposed, aim.ng to achieve stable production and optim.l econom.c perform.nce through three levels of integration: load forecasting, load dispatch, and load regulation. Unlike traditional m.thods that directly use load forecasting values, heat network elasticity is presented as a buffer between dem.nd and supply. Constraints for m.nim.l changes in equipm.nt load and operational param.ters are established for sm.oth regulation. Industrial cases dem.nstrate that the load forecasting m.del has m.an absolute percentage errors of 2.44% and 1.68% for m.dium.pressure and low-pressure steam. respectively, m.eting accuracy requirem.nts. The m.dified supply-side load sm.othness is effectively im.roved by considering heat network elasticity. The m.thod increases boiler efficiency by 1.92%, reducing average coal consum.tion by 0.92 t/h. Com.ared to m.nual operation, the proposed m.del leads to an average increase of 5.69 m. in power generation and an average reduction of 10.81% in coal-to-electricity ratio. This study verifies the im.ortance of sm.oth integration across different levels and analyzes the effective response of the proposed m.thod to the uncertainty in load forecasting. The m.thod dem.nstrates the enorm.us potential of data-driven m.thods in achieving safe, econom.cal, and sustainable production in industrial parks.

关键词： Industrial parks Heat network elasticity Load regulation Integrated optim.zation Load forecasting Production stability

Non-convexity Pricing and Allocating Costs in Stochastic Electricity m.rkets

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CSEE Journal of Power and Energy System. 2024年第4期10卷 1466-1477页

作者： Wei lin Zhifang Yang Departm.nt of Electrical Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina State Key Laboratory of Power Transm.ssion Equipm.nt&System.Security and New Technology College of Electrical EngineeringChongqing UniversityChongqing 400030China

Stochastic electricity m.rkets have drawn attention due to fast increase of renewable *** results in two issues:one is to reduce uplift paym.nts arising from.non-convexity under renewable uncertainties,and the other one is to allocate reserve costs based on renewable *** resolve the first issue,a convex hull pricing m.thod for stochastic electricity m.rkets is *** dual variables of system.wide constraints in a chance-constrained unit com.itm.nt m.del are shown to reduce expected uplift paym.nts,together with developing a linear program.to efficiently calculate such *** resolve the second issue,an allocation m.thod is proposed to allocate reserve costs to each renewable power plant by explicitly investigating how renewable uncertainties of each renewable power plant affect reserve *** proposed m.thods are validated in a 24-period 3-unit test exam.le and a 24-period 48-unit utility exam.le.

关键词： Convex hull pricing cost allocation non-convexity renewable uncertainty stochastic electricity m.rket