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Journal of Modern power Systems and Clean Energy 2019年第3期7卷 568-578页

作者： Yingying CHEN Fengji LUO Zhaoyang dong Ke MENG Gianluca RANZI Kit po WONG Visionstream Australia Pty Ltd SydneyNSW2067Australia School of Civil Engineering University of SydneySydneyNSW2006Australia School of Electrical Engineering and Telecommunications University of New South WalesSydneyNSW2052Australia School of Electrical Electronicsand Computer EngineeringUniversity of Western AustraliaCrawleyWA6009Australia

This paper proposes a day-ahead dispatch framework of thermostatically controlled loads(TCLs) for system peak load reduction. The proposed day-ahead scheduling framework estimates the user’s indoor thermal comfort degree through the building thermal inertia modelling. Based on the thermal comfort estimation, a dayahead TCL scheduling model is formulated, which consists of 3 stages: TCL aggregator estimates maximal controllable TCL capacities at each scheduling time interval by solving a optimization model;[ the system operator performs the day-ahead system dispatch to determine the load shedding instruction for each aggregator;and ′the TCL aggregator schedules the ON/OFFcontrol actions of the TCL groups based on the instruction from the system operator. A heuristic based optimization method, history driven differential evolution(HDDE)algorithm, is employed to solve the day-ahead dispatch model of the TCL aggregator side. Simulations are conducted to validate the proposed model.

关键词： Thermostatically controlled load Demand side management Thermal comfort model Demand response (DR) Direct load control(DLC)

Diffusion bonding of AlCoCrFeNi2.1 eutectic high entropy alloy to TiAl alloy

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Journal of Materials Science & Technology 2020年第10期42卷 59-69页

作者： Peng Li Shuai Wang Yueqing xia xiaohu Hao Honggang dong School of Materials Science and Engineering Dalian University of TechnologyDalian 116024China

High entropy alloys have special microstructure and remarkable *** explore their potential engineering application in high temperature structures,the microstructure evolution of bonding interface,the elemental diffusion behavior and mechanical property of the diffusion bonded joint between AlCoCrFeNi2.1eutectic high entropy alloy(EHEA)and TiAl alloy were *** reaction layers(rodlike B2 phase,Al(Co,Ni)2Ti,τ3-Al3NiTi2+TiAl,τ3-Al3NiTi2+TiAl+Ti3Al)formed in the diffusion zone near FCC phase of EHEA,but three layers(Al(Co,Ni)2Ti,τ3-Al3Ni Ti2+Ti Al,τ3-Al3Ni Ti2+Ti Al+Ti3Al)formed near B2 *** and Ni controlled the reaction diffusion of EHEA and TiAl alloy,coarsened the acicular precipitated B2 phase and turned Ti Al phase into Al(Co,Ni)2Ti andτ3-Al3NiTi2 *** these reaction layers grew in a parabolic manner as a function of bonding *** B2 phase has the lowest growth activation energy of 125.2 kJ/mol,and the growth activation energy ofτ3-Al3Ni Ti2+TiAl layer near B2 phase is much lower than that near FCC *** penetration phenomenon and convex structure formed in the diffusion zone,which resulted in interlocking effect and enhanced the strength of resultant *** highest shear strength of 449 MPa was achieved at 950℃.And the brittle fracture generally initiated at the interface between Al(Co,Ni)2Ti andτ3-Al3NiTi2+TiAl layers.

关键词： High entropy alloy TiAl alloy Diffusion bonding Microstructure evolution Shear strength

Inclusion Modes of Berberine with β-Cyclodextrin in Aqueous Solution

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Chemical Research in Chinese Universities 2012年第2期28卷 282-286页

作者： xia dong-hui REN Xu-dong JIAO Long LI Hua Institute of Analytical Science School of Chemistry and Material SciencesNorthwest UniversityXi'an 710069P.R.China School of Chemistry and Chemical Engineering Xi'an Shiyou UniversityXi'an 710065P.R.China

The possible inclusion modes of berberine（Berb） with β-cyclodextrin（BCD） in aqueous solution were predicted by molecular docking,molecular dynamics（MD） simulation and binding free energy ***,the molecular docking result reveals that the docking conformations of Berb appeared in two clusters ranked in two opposite ***,10 ns MD simulation was performed separately on the lowest energy conformation of each orientation（Mode I and Mode II） obtained by molecular ***,based on the trajectories from MD simulation,the binding free energies of the two different modes were calculated by the Molecular Mechanics/poisson Boltzmann surface area（MM/PBSA） *** analyzing the binding free energies of Berb with BCD,we found that Mode II was the preferential inclusion mode,which was in good agreement with the experimental *** addition,the computed results show that the main impetus for the complex was the van der Waals interaction,but the solvation energy and the entropy change produced an adverse effect on the complex.

关键词： Berberine β-Cyclodextrin Inclusion mode Molecular modeling Binding free energy calculation

Equilibrium sediment transport in lower Yellow River during later sediment-retaining period of xiaolangdi Reservoir

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Water Science and Engineering 2015年第1期8卷 78-84页

作者： Shao-lei Guo dong-po Sun En-hui Jiang Peng Li College of Water Conservancy North China University of Water Resources and Electric Power Yellow River Institute of Hydraulic Research Yellow River Henan Bureau Yellow River Conservancy Commission

The xiaolangdi Reservoir has entered the later sediment-retaining period, and new sediment transport phenomena and channel re-estab- lishing behaviors are appearing. A physical model test was used to forecast the scouring and silting trends of the lower Yellow River. Based on water and sediment data from the lower Yellow River during the period from 1960 to 2012, and using a statistical method, this paper analyzed the sediment transport in sediment-laden flows with different discharges and sediment concentrations in the lower Yellow River. The results show that rational water-sediment regulation is necessary to avoid silting in the later sediment-retaining period. The combination of 3 000 m^3/s 〈 Q 〈 4 000 m^3/s and 20 kg/m^3 〈 S 〈 60 kg/m^3 （where Q is the discharge and S is the sediment concentration） at the Huayuankou section is considered an optimal combination for equilibrium sediment transport in the lower Yellow River over a long period of time.

关键词： Lower Yellow River xiaolangdi Reservoir Water-sediment regulation Equilibrium sediment transport Later sediment-retaining period

Swarm Intelligence Research:From Bio-inspired Single-population Swarm Intelligence to Human-machine Hybrid Swarm Intelligence

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Machine Intelligence Research 2023年第1期20卷 121-144页

作者： Guo-Yin Wang dong-dong Cheng De-You xia Hai-Huan Jiang Chongqing Key Laboratory of Computational Intelligence Chongqing University of Posts and TelecommunicationsChongqing 400065China College of Big Data and Intelligent Engineering Yangtze Normal UniversityChongqing 408100China

Swarm intelligence has become a hot research field of artificial *** the importance of swarm intelli-gence for the future development of artificial intelligence,we discuss and analyze swarm intelligence from a broader and deeper *** a broader sense,we are talking about not only bio-inspired swarm intelligence,but also human-machine hybrid swarm *** a deeper sense,we discuss the research using a three-layer hierarchy:in the first layer,we divide the research of swarm intelli-gence into bio-inspired swarm intelligence and human-machine hybrid swarm intelligence;in the second layer,the bio-inspired swarm intelligence is divided into single-population swarm intelligence and multi-population swarm intelligence;and in the third layer,we re-view single-population,multi-population and human-machine hybrid models from different ***-population swarm intel-ligence is inspired by biological *** further solve complex optimization problems,researchers have made preliminary explor-ations in multi-population swarm ***,it is difficult for bio-inspired swarm intelligence to realize dynamic cognitive in-telligent behavior that meets the needs of human *** have introduced human intelligence into computing systems and proposed human-machine hybrid swarm *** addition to single-population swarm intelligence,we thoroughly review multi-population and human-machine hybrid swarm intelligence in this *** also discuss the applications of swarm intelligence in optimization,big data analysis,unmanned systems and other ***,we discuss future research directions and key issues to be studied in swarm intelligence.

关键词： Swarm intelligence single-population multi-population human-machine hybrid multi-granularity

Black Phosphorus Nanosheets Enhance Photophosphorylation by positive Feedback

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Chinese Journal of Chemistry 2022年第8期40卷 939-945页

作者： Zhenzhen dong Jinbo Fei Tonghui Wang xia Xu Weiguang dong Junbai Li Beijing National Laboratory for Molecular Sciences(BNLMS) CAS Key Lab of ColloidInterface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

We construct a natural-artificial hybrid architecture containing black phosphorus nanosheets(BPNS)to enhance photosynthesis of chloroplast in a positive-feedback *** this architecture,oxygen yielded by photosynthesis during water splitting by photosystemⅡpromotes the photoreaction of BPNS to produce proton and inorganic phosphate(Pi).Further,transmembrane proton gradient is increased to drive ATP synthase to synthesize ***,additional photogenerated electrons produced by BPNS are transferred to the photosynthesis *** a consequence,photosynthesis performed by chloroplast is ***,photophosphorylation efficacy of the hybrid system is increased by 1.89 times in the case of Pi *** work offers a new path to enhance solar-to-chemical energy conversion,holding promise in boosting natural photosynthesis.

关键词： Black phosphorus nanosheets Electron transport Energy conversion Photosynthesis positive feedback

Anti-apoptotic effects of recombinant human granulocyte colony-stimulating factor in focal cerebral ischemic rats

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Neural Regeneration Research 2011年第11期6卷 839-844页

作者： xia Yuan Shiming Zhang Wanli dong Qi Fang Department of Neurology First Affiliated Hospital of Soochow University Suzhou 215006 Jiangsu Province China Department of Neurosurgery First Affiliated Hospital of Soochow University Suzhou 215006 Jiangsu Province China

The neuroprotective effects of granulocyte colony-stimulating factor in cerebral ischemia/reperfusion injury are currently contentious. The present study examined the effects of subcutaneous injection of recombinant human granulocyte colony-stimulating factor （50 pg/kg） over 5 days in a model of cerebral ischemia/reperfusion with intraluminal filament occlusion in rats. The results indicated that recombinant human granulocyte colony-stimulating factor reduced brain infarct volume following cerebral ischemia/reperfusion injury in rats, down-regulated the expression of caspase-3 mRNA （a key protease for apoptosis in the cerebral ischemia zone）, lowered the rate of neuronal apoptosis in the cerebral ischemia zone, and notably ameliorated neurological function. These results indicate that recombinant human granulocyte colony-stimulating factor has anti-apoptotic effects on neurons following focal cerebral ischemia/reperfusion injury, and exerts neuroprotective effects.

关键词： recombinant human granulocyte colony-stimulating factor cerebral ischemia/ reperfusion injury anti-apoptosis neural regeneration

A modified predictive control strategy of three-phase grid-connected converters with optimized action time sequence

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Science China(Technological Sciences) 2013年第4期56卷 1017-1028页

作者： SONG ZhanFeng xia ChangLiang LIU Tao dong Nan School of Electrical Engineering and Automation Tianjin University Tianjin Key Laboratory of Advanced Technology of Electrical Engineering and Energy Tianjin Polytechnic University Beijing Electric power Company

Due to the excellent dynamic performance,the Finite Control Set Model Predictive Control has been widely used in various types of ***,when Finite Control Set Model Predictive Control is adopted,the switching frequency of converters varies significantly with system operating ***,constant-frequency predictive control strategy has been *** active voltage vectors and a zero voltage vector are selected within each sampling *** action time sequence is then *** to the unsymmetrical distribution of current variation rates around zero,the calculated value of the voltage-vector action time will turn up *** to common sense,the voltage-vector action time is greater than or equal to *** action time is normally forced to zero whenever a negative value is predicted,resulting in the control failure and performance *** solve this problem,this paper proposes modified *** modified strategy examines the action time calculated *** negative action time comes out,the modified strategy reselects the active voltage vector accordingly,instead of forcing the action time to be *** action time sequence is further determined by minimizing the cost *** effectiveness of the modified strategy is clearly verified by experimental tests,and analytical remarks are all founded in practical results.

关键词： converter cost function optimized action time sequence negative action time

Comparative Study on the Antioxidant Activity of Peptides from Pearl Oyster(Pinctada martensii) Mantle Type V Collagen and Tilapia(Oreochromis niloticus) Scale Type Ⅰ Collagen

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Journal of Ocean University of China 2017年第6期16卷 1175-1182页

作者： xia Guanghua ZHANG Xueying dong Zhenghua SHEN Xuanri College of Food Science and Technology Hainan University Haikou 570228 P. R. China

In this study, Pearl oyster mantle type V collagen(poMC) and tilapia scale type I collagen(TSC) were extracted and hydrolyzed by various proteases in order to obtain peptides. The antioxidant activity of the peptides was investigated by DPPH, hydroxyl radical scavenging experiments and a dynamic digestion model in vitro. The results show that there are significant differences in amino acid composition between poMC and TSC. The collagen peptides obtained from pearl oyster mantle(poMCP) by treating with alkaline protease exhibited higher antioxidant activity than that from tilapia scale(TSCP) treated with papaya protease, and both of them showed greater DPPH and hydroxyl radical scavenging activity than other peptides. After being separated via Sephadex G-25 chromatography, the M1 fraction isolated from poMCP, and the S1 fraction from TSCP with which both had higher molecular weights showed the strongest antioxidant activity than other fractions, and the M1 fraction exhibited stronger antioxidant activity than the S1 fraction in scavenging free-radicals and protecting cells from the oxidation damage. Furthermore, after treating the dynamic digestion system model in vitro, the DPPH and hydroxyl radical scavenging activity of the M1 fraction increased slightly. These results suggest that poMCP exhibits stronger antioxidant activity than TSCP, which means that PMOP may be a good candidate to be a potential natural antioxidant in the food-processing industry.

关键词： tilapia scale pearl oyster mantle collagen peptide antioxidant activity

Association of aphid life stages using DNA sequences： A case study of tribe Eriosomatini （Hemiptera： Aphididae Pemphiginae）

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Insect Science 2008年第6期15卷 545-551页

作者： He-Cai Zhang dong Zhang Ge-xia Qiao Institute of Zoology Chinese Academy of Sciences Beijing Henan Normal University Xinxiang Henan Province Graduate University of the Chinese Academy of Sciences Beijing China

Association of aphid life stages based on a portion of COI sequence was applied in Eriosomatini. Three aphid specimens, nos. 17496, 19265a, and 19265b collected on Gramineae roots all clustered with Tetraneura chinensis Mordvilko with strong support. The average pairwise p-distance among the four taxa was 0.001 （range, 0.000-0.002）, and that among all the ingroup taxa was 0.065 （range, 0.000-0.141）. This indicated that nos. 17496 and 19265 b were the secondary-host morphs of T. chinensis. In this paper the secondary host morph of T. chinensis is described for the first time. With the identification of more species＇ secondary-host morphs, aphids identification based on this morph will be made easily.

关键词： COI sequence Eriosomatini primary host morph secondary host morph Tetraneura chinensis