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Electricity-Heat-Based Integrated Demand Response Considering Double Auction Energy Market with Multi-Energy Storage for Interconnected Areas

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CSEE Journal of Power and Energy Systems 2024年第4期10卷 1688-1700页

作者： dan wang Deyu Huang Qing'e Hu Hongjie Jia Bo Liu Yang Lei Key Laboratory of Smart Grid of Ministry of Education Tianjin UniversityTianjin 300072China Key Laboratory of Smart Energy&Information Technology of Tianjin Municipality Tianjin 30072China

With development of integrated energy systems and energy markets,transactive energy has received increasing attention from society and academia,and realization of energy distribution and integrated demand response through market transactions has become a current research *** on optimized operation of a distributed energy station as a regional energy supply center is of great significance for improving flexibility and reliability of the *** on retail-side energy trading market,this study first establishes a framework of combined electric and heating energy markets and analyses a double auction market mechanism model of interconnected distributed energy *** study establishes a mechanism model of energy market participants,and establishes the electric heating combined market-clearing model to maximize global surplus considering multi-energy ***,in the case study,a typical user energy consumption scenario in winter is selected,showing market-clearing results and demand response effects on a typical *** of transmission line constraints,energy supply equipment capacity,and other factors on clearing results and global surplus are compared and analyzed,verifying the effects of the proposed method on improving global surplus,enhancing interests of market participants and realizing coordination and optimal allocation of both supply and demand resources through energy complementarity between regions.

关键词： Double auction energy market integrated energy system interconnected energy stations multi-energy storage

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Robustness analysis of O-FDE algorithm for dispersion compensation in coherent fiber optical communications

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Optoelectronics Letters 2024年第5期20卷 289-293页

作者： ZHONG Kun ZENG Chenping DONG Jiaqiang wang Baojiang LI dan School of Information Technology Xichang UniversityXichang 615013China Key Laboratory of Liangshan Agriculture Digital Transformation of Sichuan Provincial Education Department Xichang615013China

The overlapping frequency domain equalization(O-FDE) in digital signal processing(DSP) is frequently employed to provide dispersion compensation in long-distance coherent fiber optical communications. However, the change in overlapping symbol length that occurs during the processing of the O-FDE algorithm will typically be influenced by the decision and zero filling of the last subblock, which is harmful to the robustness of the O-FDE algorithm. In this study, with a thorough robustness analysis on changing overlapping symbol length, we present a novel method for decision and zero filling of the last subblock and examine the correspondingly resulting error vector magnitude(EVM) and symbol error ratio(SER) under different values of optical signal-to-noise ratio(OSNR), chromatic dispersion, and overlapped symbol lengths.

关键词： fiber dispersion symbol

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Evaluation of long-term visual performance following AcrySof ReSTOR lens implantation

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Chinese Medical Journal 2009年第22期122卷 2705-2710页

作者： ZHAO Yun-e LI Jun-hua ZHU Jun wang dan-dan wang Qin-mei School of Optometry and Ophthalmology Eye Hospital Wenzhou Medical College Wenzhou Zhejiang 325003 China

Background Multifocal lens has become popular in cataract surgery. Short-term outcome after AcrySof ReSTOR Lens implantation had been reported by many studies, but long-term visual performance and the effect of posterior capsular opacification （PCO） on visual performance need further investigation. Methods This retrospective study involved 54 eyes from 41 cataract patients implanted with ReSTOR lens, with a follow-up period of 12 to 31 months. Manifest refraction spherical equivalence （MRSE）, monocular uncorrected and best-corrected distance visual acuity, uncorrected and distance-corrected near and intermediate visual acuity, contrast sensitivity were assessed. The effect of PCO on visual performance was evaluated by comparing visual parameters between pre and post-capsulotomy. Results Uncorrected distance visual acuity of eyes with MRSE within ±0.5 diopter （D） was better than those with MRSE greater than ±0.5 D （P 〈0.05）. Uncorrected distance and near visual acuity （LogMAR） was 0.10 and 0.17 respectively. Best corrected distance visual acuity and best distance-corrected near visual acuity （LogMAR） was 0.00 and 0.16, a significant improvement was noted after correction （P=0.000, P=-0.001, respectively）. Contrast sensitivity logarithm was comparable with the normal value at difference spatial frequencies except at 12 cpd. In 5 eyes with mild PCO, post-capsulotomy visual parameters were better than pre-capsulotomy （P 〈0.05）. Conclusion ReSTOR lens provides a good long-term distance and near vision, functional intermediate vision and contrast sensitivity. Mild PCO significantly affects visual performance and needs early intervention.

关键词： vision multifocal lens refraction posterior capsular opacification

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Multi-Stream Temporally Enhanced Network for Video Salient Object Detection

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Computers, Materials & Continua 2024年第1期78卷 85-104页

作者： dan Xu Jiale Ru Jinlong Shi School of Computer Science Jiangsu University of Science and TechnologyZhenjiang212100China

Video salient object detection(VSOD)aims at locating the most attractive objects in a video by exploring the spatial and temporal *** poses a challenging task in computer vision,as it involves processing complex spatial data that is also influenced by temporal *** the progress made in existing VSOD models,they still struggle in scenes of great background diversity within and between ***,they encounter difficulties related to accumulated noise and high time consumption during the extraction of temporal features over a long-term *** propose a multi-stream temporal enhanced network(MSTENet)to address these *** investigates saliency cues collaboration in the spatial domain with a multi-stream structure to deal with the great background diversity challenge.A straightforward,yet efficient approach for temporal feature extraction is developed to avoid the accumulative noises and reduce time *** distinction between MSTENet and other VSOD methods stems from its incorporation of both foreground supervision and background supervision,facilitating enhanced extraction of collaborative saliency *** notable differentiation is the innovative integration of spatial and temporal features,wherein the temporal module is integrated into the multi-stream structure,enabling comprehensive spatial-temporal interactions within an end-to-end *** experimental results demonstrate that the proposed method achieves state-of-the-art performance on five benchmark datasets while maintaining a real-time speed of 27 fps(Titan XP).Our code and models are available at https://***/RuJiaLe/MSTENet.

关键词： Video salient object detection deep learning temporally enhanced foreground-background collaboration

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Evaluation of the Relative Tectonic Activity from the Faults in the Gengma-Lancang-Menghai Seismic Belt(Southwestern China)

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Journal of Earth Science 2024年第1期35卷 131-143页

作者： dan wang Youpu Dong Zhipeng Xi Dongyue Zhang Jiaxin Duan Huayu Yu Liang Yu Faculty of Land Resource Engineering Kunming University of Science and TechnologyKunming 650093China

The Gengma-Lancang-Menghai seismic belt,the southernmost part of the North-South seismic belt,is controlled by four active faults:the Nantinghe fault(NTHF),the Sanjianshan fault(SJSF),the Hanmuba-Lancang fault(HMB-LCF),and the Heihe fault(HHF),from northwest to ***,the tectonic activity of the faults in the Gengma-Lancang-Menghai seismic belt has not been fully studied *** the present work,we conducted tectonic geomorphic indices to analyze the relative tectonic activity along the faults in the seismic belt based on the digital elevation *** interpreted asymmetric factor,index of drainage basin shape,hypsometric integral,normalized streamlength gradient,valley floor-to-width to height ratio,and longitudinal profiles to show that the relative tectonic activity is higher in the north and lower in the south,and is strong in the region from Shanjia to Huimin in the center of the seismic belt.

关键词： Gengma-Lancang-Menghai seismic belt southeastern Tibetan Plateau geomorphic indices longitudinal profile

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Exploring formation mechanism and source attribution of ozone during the 2019 Wuhan Military World Games:Implications for ozone control strategies

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Journal of Environmental Sciences 2024年第2期136卷 400-411页

作者： Lei Zhang Lili wang Runyu wang Nan Chen Yuan Yang Ke Li Jie Sun dan Yao Yuesi wang Minghui Tao Yang Sun Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China University of the Chinese Academy of Sciences Beijing 100049China Hubei Ecological Environment Monitoring Center Station Wuhan 430072China Guizhou Research and Designing Institute of Environmental Sciences Guizhou Academy of Environmental Science and DesignGuiyang 550081China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science and TechnologyNanjing 210044China School of Environment Key Laboratory for Yellow River and Huai River Water Environment and Pollution ControlMinistry of EducationHenan Normal UniversityXinxiang 453007China Key Laboratory of Regional Ecology and Environmental Change School of Geography and Information EngineeringChina University of GeosciencesWuhan 430074China

A series of emission reduction measures were conducted in Wuhan,Central China,to ensure good air quality during the 7th Military World Games(MWG)in October *** better understand the implications for ozone(O_(3))pollution control strategies,we applied integrated analysis approaches based on the de-weathered statistical model,parameterization methods,chemical box model,and positive matrix factorization *** the MWG,concentrations of O_(3),NO_x,and volatile organic compound(VOCs),OFP(O_(3)formation potential),L_(OH)(OH radical loss rate)were 83μg/m^(3),43μg/m^(3),26 ppbv,188μg/m^(3),and 3.9 s^(-1),respectively,which were 26%,18%,3%,15%,and 13%lower than pre-MWG values and 6%,39%,30%,33%,and 50%lower than post-MWG values,*** removing meteorological influence,O_(3)and its precursors during the MWG decreased largely compared with post-MWG values,and only O_(3),NO_(2),and oxygenated VOCs(OVOCs)declined compared with pre-MWG values,which revealed the emission reduction measures during the MWG played an important role for O_(3)*** six VOCs sources,the mass contributions of biomass burning and solvents usage during the MWG decreased largely compared with pre-MWG values.O_(3)production was sensitive to VOCs and the key species were aromatics,OVOCs,and alkenes,which originated mainly from solvents usage,biomass burning,industrial-related combustion,and vehicle *** O_(3)concentration during the strict control was mainly caused by OVOCs reduction due to biomass burning ***,the O_(3)abatement strategies of Wuhan should be focused on the mitigation of high-reactivity VOCs.

关键词： VOCs Ozone Wuhan Military World Games Source apportionment Relative incremental reactivity Random forest

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Efficacy analysis of inferior oblique muscle belly transposition for small-angle asymmetric superior oblique palsy

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Chinese Medical Journal 2021年第12期134卷 1492-1494页

作者： Yu Su Cheng-Yue Zhang dan-dan wang Shi-Qiang Yang Department of Ophthalmology Anhui Province Children's HospitalHefeiAnhui 230022China Department of Ophthalmology Beijing Children's Hospital affiliated to Capital Medical UniversityNational Center for Children's HealthBeijing 100045China Department of Strabismus and Pediatric Ophthalmology Tianjin Eye HospitalTianjin 300020China

Asymmetric superior oblique palsy(SOP)is a complicated,non-comitant type of *** usually present with small-angle hypertropia in the affected eyes,accompanied by inferior oblique muscle overaction(IOOA).[1]Compensatory head posture and asymmetric development of the face are typically observed in congenital SOP,while diplopia is more common in an acquired SOP.[2]Prism glasses can improve diplopia and vertical deviation in the primary position,but they are not so successful at correcting non-comitant paralytic *** addition,vertical strabismus and compensatory head posture will return after the prism glasses are removed,wearing prism glasses will lower the vision of children *** like an inferior oblique muscle(IO)weakening procedure is often required eventually in those ***,conventional procedures for IO weakening may cause overcorrection and/or secondary A pattern in patients who have mild to moderate IOOA together with small-angle asymmetric SOP,posing a risk to its safety.[3]In the study by Caldeira,[4]21%of the patients with mild to moderate IOOA developed A pattern following the ***,it remains a clinical challenge to select the most appropriate type of surgery for the treatment of small-angle asymmetric *** oblique muscle belly transposition(IOMBT),[5]a new IO weakening procedure introduced to our practice lately,has shown positive results in treating small-angle asymmetric SOP as well as a lower risk of complications such as overcorrection and secondary A *** this study,we evaluated the efficacy and safety of the IOMBT procedure for the treatment of small-angle asymmetric SOP.

关键词： oblique asymmetric angle

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Application of a microscopic optical potential of chiral effective field theory in (p, d) transfer reactions

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Nuclear Science and Techniques 2024年第1期35卷 134-144页

作者： Yi-Ping Xu Si-Lu Chen dan-Yang Pang School of Nuclear Science and Engineering North China Electric Power UniversityBeijing 102206China School of Physics Beihang UniversityBeijing 100191China

The microscopic global nucleon–nucleus optical model potential(OMP)proposed by Whitehead,Lim,and Holt,the WLH potential(Whitehead et al.,Phys Rev Lett 127:182502,2021),which was constructed in the framework of many-body per-turbation theory with state-of-the-art nuclear interactions from chiral effective field theory(EFT),was tested with(p,d)transfer reactions calculated using adiabatic wave *** target nuclei included both stable and unstable nuclei,and the incident energies reached 200 *** results were compared with experimental data and predictions using the phenomenological global optical potential of Koning and Delaroche,the KD02 ***,we found that the micro-scopic WLH potential described the(p,d)reaction angular distributions similarly to the phenomenological KD02 potential;however,the former was slightly better than the latter for radioactive *** average,the obtained spectroscopic factors(SFs)using both microscopic and phenomenological potentials were similar when the incident energies were below approxi-mately 120 ***,their difference tended to increase at higher incident energies,which was particularly apparent for the doubly magic target nucleus 40Ca.

关键词： Microscopic optical model potential (p,d)transfer Spectroscopic factors

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Study on Clogging Mechanism and Water Sediment Movement Mechanism of Patch-Type Drip Irrigation Emitters

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排灌机械工程学报 2024年

作者： ZHU Ximao YU Liming wang dan wang Changman WU Dali YCIC Ecological Environment Engineering Co. LTD 4. Yanshan Manyue Berry Agriculture Co. LTD Faculty of Modern Agriculture Engineering Kunming University of Science and Technology Research Institute of Highway Ministry of Transport Key Laboratory of Environmental Protection Technology on Road

As one of the key components of drip irrigation technology， the existence of sediment particles seriously affects the service life of emitters and restricts the popularization of drip irrigation technology. In this paper， two kinds of patch drip irrigation emitters are used as research object， and the anti-clogging performance experiment is carried out in the laboratory. The dynamic changes in emitters’ clogging characteristics (Dra， Cu) were statistically analyzed. The movement mechanism of emitter clogging and discharging sediment was studied. The effects of emitter structure and position factors on emitter clogging were analyzed. The results show that: (1) The pressure-compensated emitter has better anti-clogging performance， and its service life is 227.8% of the labyrinth channel emitter. (2) Single structural factor can not evaluate the anti-clogging performance of emitters. All factors causing emitter clogging should be considered comprehensively. (3) All emitters have sensitive clogging sediment inside， but only when sediment content is high can it easily cause blockage. The results show that when the sensitive sediment content is 5.46% and 5.54%， it does not affect the clogging characteristics of the emitters. (4) The discharge of sediment V90 from the emitter is affected by the accumulation effect of clogged sediment. The experimental results show that the emitter can discharge up to 50% of the accumulated clogged sediment without clogging. In comparison， the emitter with clogging can only discharge up to 25% of the accumulated clogged sediment. These results could provide references for the application and promotion of drip irrigation technology.

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Boosting high-rate Li-ion storage properties by La(Ⅲ)ion doping in spinel(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide anode

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Journal of Advanced Ceramics 2024年第6期13卷 769-779页

作者： Shijie Chen Mengfan Bao Yanggang Jia Pengpeng wang dan Wei Yuhuan Guo Jie Tan Aiqin Mao Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa’anshan 243032China Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials(Anhui University of Technology) Ministry of EducationMa’anshan 243032China

The present work aims to create lattice distortion and optimize the surface oxygen vacancy(OV)concentration in a model spinel(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide(HEO)through a heteroatom La^(3+)doping *** demonstrated,La^(3+)with a large radius can be doped successfully into the spinel lattice of(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4),thereby not only causing lattice distortion to increase oxygen vacancies but also refining crystalline grains and improving the specific *** with the(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)anode,the(La0.01CoCrFeMnNi)3/5.01O4 anode with moderate doping exhibits excellent cycling performance(1228 mAh·g^(−1)after 400 cycles at 0.2 A·g^(−1))and yields an increase of 75%rate capability at 3 A·g^(−1)(420 mAh·g^(−1)at 3 A·g^(−1)).The desirable kinetic transport of electrons and diffusion of Li+within the moderately La^(3+)-doped anode and the synergistic interfacial pseudocapacitive behavior satisfy the redox reaction at a high rate,thus increasing rate capability.

关键词： lithium-ion battery(LIB) anode lattice distortion high-entropy oxide(HEO) high-rate performance La^(3+)doping oxygen vacancy(OV)

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