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National Science Review 2023年第11期10卷 160-170页

作者： Mi zhang Jia-Peng Liao Run-Han Li Sheng-Nan Sun Meng Lu Long-zhang Dong Pei Huang Shun-Li Li Yue-Peng Cai Ya-Qian Lan South China Normal University School of Chemistry

Electrocatalytic co2reduction(ECR) coupled with organic oxidation is a promising strategy to produce high value-added chemicals and improve energy efficiency. However, achieving the efficient redox coupling reaction is still challenging due to the lack of suitable electrocatalysts. Herein, we designed two bifunctional polyimides-linked covalent organic frameworks(PI-coFs) through assembling phthalocyanine(Pc) and porphyrin(Por) by non-toxic hydrothermal methods in pure water to realize the above catalytic *** to the high conductivity and well-defined active sites with different chemical environments, Ni Pc-Ni Por coF performs efficient ECR coupled with methanol oxidation reaction(MOR)(Faradaic efficiency of co(FEco) = 98.12%, partial current densities of co(j co) = 6.14 m A cm-2for ECR, FEHcoOH = 93.75%,j HcoOH = 5.81 m A cm-2for MOR at low cell voltage(2.1 V) and remarkable long-term stability).Furthermore, experimental evidences and density functional theory(DFT) calculations demonstrate that the ECR process mainly conducts on Ni Pc unit with the assistance of Ni Por, meanwhile, the MOR prefers Ni Por conjugating with Ni Pc. The two units of Ni Pc-Ni Por coF collaboratively promote the coupled oxidation-reduction reaction. For the first time, this work achieves the rational design of bifunctional coFs for coupled heterogeneous catalysis, which opens a new area for crystalline material catalysts.

关键词： hydrothermal synthesis phthalocyanine-porphyrin coFs bifunctional electrocatalysts electrocatalytic co2 reduction methanol oxidation reaction

Reinforcement learning building control approach harnessing imitation learning

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Energy and AI 2023年第4期14卷 60-72页

作者： Sourav Dey Thibault Marzullo Xiangyu zhang Gregor Henze Department of Civil Environmental and Architectural EngineeringUniversity of ColoradoBoulderCOUSA National Renewable Energy Laboratory GoldenCOUSA Renewable and Sustainable Energy Institute BoulderCOUSA

Reinforcement learning(RL)has shown significant success in sequential decision making in fields like autonomous vehicles,robotics,marketing and gaming *** success has attracted the attention to the RL control approach for building energy systems which are becoming complicated due to the need to optimize for multiple,potentially conflicting,goals like occupant comfort,energy use and grid ***,for real world applications,RL has several drawbacks like requiring large training data and time,and unstable control behavior during the early exploration process making it infeasible for an application directly to building control *** address these issues,an imitation learning approach is utilized herein where the RL agents starts with a policy transferred from accepted rule based policies and heuristic *** approach is successful in reducing the training time,preventing the unstable early exploration behavior and improving upon an accepted rule-based policy-all of these make RL a more practical control approach for real world applications in the domain of building controls.

关键词： Reinforcement learning Building controls Imitation learning Artificial intelligence

Multisensor information fusion:Future of environmental perception in intelligent vehicles

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Journal of Intelligent and connected Vehicles 2024年第3期7卷 163-176页

作者： Yongsheng zhang Chen Tu Kun Gao Liang Wang CRRC Qishuyan Institute co. Ltd.Changzhou 213011China School of Information Science and Engineering Southeast UniversityNanjing 211189China Department of Architecture and Civil Engineering Chalmers University of TechnologyGothenburg SE-41296Sweden School of Vehicle and Mobility Tsinghua UniversityBeijing 100084China

As urban transportation increasingly impacts daily life,efficiently utilizing traffic resources and developing public transportation have become crucial for addressing issues such as congestion,frequent accidents,and noise *** rapid advancement of intelligent autonomous driving technologies,particularly environmental perception technologies,offers new directions for solving these *** review discusses the application of multisensor information fusion technology in environmental perception for intelligent vehicles,analyzing the components and performance of various sensors and their specific applications in autonomous *** multisensor information fusion,the accuracy of environmental perception is enhanced,optimizing decision support for autonomous driving systems and thereby improving vehicle safety and driving *** study also discusses the challenges faced by information fusion technology and future development trends,providing references for further research and application in intelligent transportation systems.

关键词： intelligent vehicles environmental perception multisensor information fusion autonomous driving traffic safety

Identification of High-Risk Scenarios for Cascading Failures in New Energy Power Grids Based on Deep Embedding Clustering Algorithms

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Energy Engineering 2023年第11期120卷 2517-2529页

作者： Xueting Cheng Ziqi zhang Yueshuang Bao Huiping Zheng State Grid Shanxi Electric Power Research Institute State Grid Shanxi Electric Power Co.Ltd.Taiyuan030001China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing102206China

At present,the proportion of new energy in the power grid is increasing,and the random fluctuations in power output increase the risk of cascading failures in the power *** this paper,we propose a method for identifying high-risk scenarios of interlocking faults in new energy power grids based on a deep embedding clustering(DEC)algorithm and apply it in a risk assessment of cascading failures in different operating scenarios for new energy power ***,considering the real-time operation status and system structure of new energy power grids,the scenario cascading failure risk indicator is *** on this indicator,the risk of cascading failure is calculated for the scenario set,the scenarios are clustered based on the DEC algorithm,and the scenarios with the highest indicators are selected as the significant risk scenario *** results of simulations with an example power grid show that our method can effectively identify scenarios with a high risk of cascading failures from a large number of scenarios.

关键词： New energy power system deep embedding clustering algorithms cascading failures

co-Cr-Mo-Cu alloys for clinical implants with osteogenic effect by increasing bone induction, formation and development in a rabbit model

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Burns & Trauma 2020年第1期8卷 1-13页

作者： Jingzhu Duan Yang Yang Erlin zhang Huan Wang Department of Orthopaedic Shengjing Hospital of China Medical UniversityNo.36 Sanhao StreetHeping DistrictShenyang 110004China Department of Ophthalmology Shengjing Hospital of China Medical UniversityNo.36 Sanhao StreetHeping DistrictShenyang 110004China Key Laboratory for Anisotropy and Texture of Materials Education Ministry of ChinaSchool of Materials Science and EngineeringNortheastern UniversityNo.3-11 Wenhua RoadHeping DistrictShenyang 110819China

Background:co-Cr-Mo alloy has been widely used in clinical implants because of its excellent mechanical and anti-corrosion properties,but there is an urgent need to address its disadvantages,such as implant-related infections and implant *** synthesized co-Cr-Mo-Cu(co-Cu)alloys with different Cu contents to modify implant performance to be suitable as a bonecompatible implant ***:Microstructure,phase content and mechanical properties of the co-Cr-Mo alloy were *** and immunohistochemical analyses were performed after implantation in *** experimental alloy was implanted on the lateral side of the lower tibial condyle and the tibial ***:Phase content and mechanical properties revealed that the crystallographic structure and wear resistance were *** implantation results demonstrated that osteogenic capability was markedly enhanced,ascribed to the excellent antibacterial and osseointegration capacities of Cu phases,and with the release of Cu *** particular,co-Cu alloy containing 2 wt%Cu exhibited the best osteogenic performance among all ***:The results indicated that osteogenic performance of the co-Cr-Mo alloy could be enhanced by adding *** particular,the co-2Cu alloy exhibited the best properties according to both immunohistochemical and histological *** study not only provides deep insight into the osteogenic effect of Cu but presents a new co-Cu alloy for clinical implants.

关键词： co-Cr-Mu-Cu alloy Cu ion Osteogenic capability Implantable operation Clinical application

Are Acila divaricata and Acila mirabilis One Species or Two Distinct Species? Evidence from coI Mitochondrial DNA

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Journal of Ocean University of China 2014年第2期13卷 283-289页

作者： zhang Junlong SHI Huafeng XU Fengshan SHA Zhongli Institute of Oceanology Chinese Academy of Sciences

Acila divaricata （Hinds, 1843） and A. mirabilis （Adams and Reeve, 1850） are common benthic bivalves in China. A number of researchers have proposed that the latter species is a junior synonym of the former species. Because of morphological similarities, it is difficult to distinguish these two species based on visual examination only. For better understanding of their taxon-omy, the mitochondrial co1 gene fragments of five individuals of A. divaricata from the East China Sea and six individuals of A. mirabilis from the Yellow Sea were sequenced in this study. The phylogenetic relationships of the obtained coI sequences, together with nineteen sequences of three species of the genus Nucula, were analyzed. The pairwise intra- and inter-specific distances for the co1 sequences ranged from 0.002 to 0.017 and from 0.128 to 0.134, respectively, and no overlap was found. Phylogenetically, A. divaricata and A. mirabilis form distinct clades and cluster into a sister to all other Nucula species. The results indicated that A. di-varicata and A. mirabilis are two distinct species. The differences in the morphology and distribution between the two species were briefly discussed.

关键词： cytochrome oxidase I molecular taxonomy Bivalvia Acila distribution

Developments and challenges on enhancement of photocatalytic co_(2)reduction through photocatalysis

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Carbon Resources conversion 2024年第3期7卷 106-120页

作者： Haiquan Wang Qingjie Guo Hongyan zhang Cheng Zuo college of Chemistry&Chemical and Environmental Engineering Weifang UniversityWeifangPeople’s Republic of China State Key Laboratory of High-efficiency coal Utilization and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuanPeople’s Republic of China

The conversion of co_(2)into high-value fuels and chemicals has garnered research interest *** conversion and utilization of co_(2)has become one of the most urgent tasks for *** this context,using solar energy to convert co_(2)into high-value fuels such as CH4 and CH_(3)OH has extremely high potential application ***,the research progress and results of applying various photocatalysts in photocatalytic co_(2)reduction with various novel catalysts were ***,strategies for improving photocatalytic performance were ***,improving the catalytic mechanism of catalysts and designing novel highactivity,high-stability catalysts through comprehensive exploration of the reaction mechanism were suggested to meet the future requirements of industrial production.

关键词： co_(2)photoreduction Photocatalyst Charge separation co_(2)conversion technology

Genomic landscape of mitochondrial DNA insertions in 23 bat genomes:characteristics,loci,phylogeny,and polymorphism

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Integrative Zoology 2022年第5期17卷 890-903页

作者： Guojun zhang Deqi GENG Qiulin GUO Wei LIU Shufen LI Wujun GAO Yongfei WANG Min zhang Yilin WANG Yanzhen BU Hongxing NIU college of Life Sciences Henan Normal UniversityXinxiangChina School of Basic Medical Sciences Xinxiang Medical UniversityXinxiangChina

The transfer of mitochondrial DNA to the nuclear genome gives rise to the nuclear DNA sequences of mitochon-drial origin(NUMTs),considered as a driving force in genome *** this study,NUMTs in 23 bat genomes were investigated and compared *** results showed that NUMTs existed in 22 genomes except for Noctilio leporinus,suggesting that mitochondrial fragment insertion in the nuclear genome was a common event in bat ***,remarkable variations in NUMTs number,cumulative length,and proportion in the nu-clear genome were discovered across bat *** orthologous NUMT loci analysis of the Phyllostomidae family indicated that the NUMTs insertion events in bat genomes were *** NUMTs were mainly inserted into the intergenic regions,particularly,co-localized with repetitive sequences(especially transposable el-ements).However,several NUMTs were inserted into genes,some of which were in the exon region of functional *** NUMT in the genome of Pteropus alecto surprisingly matched with cDNA of ATP8B3 that provided evidence of NUMTs with coding *** analysis on NUMTs originating from coXI and coXII loci highlighted 2 clusters of Yinpterochiroptera and Yangochiroptera for *** NUMTs from Rhinolophus ferrumequinum were ampliﬁed,and the sequencing results conﬁrmed the reliability of the NUMT *** of them was polymorphic for the presence or absence of the NUMT insertion,and each genotype of NUMT loci showed a distinct regional distribution *** information obtained in this study provides novel insights into the NUMT organization and features in bat genomes and establishes a basis for further studying of the evolution of bat species.

关键词： bat homoplasy-free mitochondrial DNA NUMTs polymorphism

Effects of non-starch polysaccharides from pure wheat malt beer on beer quality,in vitro antioxidant,prebiotics,hypoglycemic and hypolipidemic properties

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Food Bioscience 2022年第3期47卷 1202-1212页

作者： Zhaolin Song Miaomiao Li Jinhua Du Kaili zhang college of Food Science and Engineering Shandong Agricultural UniversityTai'anShandong271018China Shandong Taishan Beer co.Ltd. Tai'anShandong271000China college of Food Science and Engineering Shandong Agriculture and Engineering UniversityZiboShandong255300China

Pure wheat malt beer (PWMB) with potentially functional properties may attract consumer *** explore the functional properties of non-starch polysaccharides (NSPs) in PWMB,NSPs were extracted from PWMB and separated into PWMB non-starch polysaccharides-1 (PNSP-1) and PWMB non-starch polysaccharides-2 (PNSP-2) by Q-Sepharose Fast Flow ***-1 exhibited more effects on increasing the viscosity of beers,which had higher purity of 92.58% containing 88.53% arabinoxylan with arabinose/xylose (A/X) 0.60 and 2.78% β-glucan but no glucomannan and mannan;while PNSP-2 showed greater effects on promoting beer haze and foam retention,which had more diverse NSPs including 46.03% arabinoxylan with A/X 1.13,41.47% arabinogalactan,10.26% glucomannan,and 2.70% mannan but no β-*** of sugar composition resulted in a better antioxidant capacity of *** proliferated Lactobacillus casei LC6117 and LC0331,but did not promote *** LP-28 and *** ***-2 was also utilized by *** ***-2 had better effects on prebiotics ***,PNSP-1 and PNSP-2 all exhibited mild inhibitory effects on α-glucosidase and lipase but not on α-amylase,and showed a binding capacity to fat and *** work is of great reference significance for improving the viscosity,haze,foam retention and health value of wheat beer.

关键词： Non-starch polysaccharides Pure wheat malt beer Haze Antioxidant Prebiotics Enzyme inhibitory activity

Asymmetric synthesis of L-carnitine from (R)-3-chloro-1,2-propanediol

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Chinese Chemical Letters 2011年第7期22卷 765-767页

作者： Xu Qin Li Yun Xu Yang Wei Li Wang Bin Hu Hui Min Xue Tian Yi zhang Xue Tao zhang Department of Chemistry University of Science and Technology Beijing Beijing 100083 China

A practical chemical synthesis of L-camitine （1） has been accomplished from （R）-3-chloro-1,2-propanediol （（R）-4）, which is a main by-product originated from （R,R）-Salen co（III） catalyzed hydrolytic kinetic resolution （HKR） of （±）-epichlorohydrin. （R）-4 was utilized as a chiral starting material to prepare the key intermediate cyclic sulfite （（R）-S）. The new synthetic approach demonstrated an efficient utilization of organic by-product for the asymmetric synthesis of bioactive compounds.

关键词： L-Camitine Cyclic sulfite (R)-3-Chloro-1,2-propanediol