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| 1 | Infiltrating lithium into carbon doth decorated with zinc oxide arrays for dendrite-free lithium metal anode显示文摘Lithium metal anode for batteries has attracted extensive attentions, but its application is restricted by the hazardous dendritic Li growth and dead Li formation. To address these issues, a novel Li anode is developed by infiltrating molten Li metal into conductive carbon cloth decorated with zinc oxide arrays. In carbonate-based electrolyte, the symmetric cell shows no short circuit over 1,500 h at 1 mA·cm^-2, and stable voltage profiles at 3 mA cm^-2 for ~ 300 h cycling. A low overpotential of ~ 243 mV over 350 cycles at a high current density of 10 mA·cm^-2 is achieved, compared to the seriously fluctuated voltage and fast short circuit in the cell using bare Li metal. Meanwhile, the asymmetric cell withstands 1,000 cycles at 10 C (1 C = 167 mAh·g^-1) compared to the 210 cycles for the cell using bare Li anode. The excellent performance is attributed to the well-regulated Li plating/stripping drive n from the formation of LiZn alloy on the wavy carb on fibers, resulting in the suppress!on of dendrite growth and pulverization of the Li electrode during cycling. | Xianshu Wang Zhenghui Pan Yang Wu Xiaoyu Ding Xujia Hong Guoguang Xu Meinan Liu Yuegang Zhang Weishan Li | 2019 | Nano Research2019，12，3： | 8 |
| 2 | Driving Mechanism of Cultivated Land Transition in Yantai Proper,Shandong Province,China显示文摘Cultivated land transition and its driving mechanism are the hotspots among studies on land use change. In this study, we constructed a framework to study the driving mechanism of cultivated land transition from the quantitative perspective. Based on the vector data of land use in 1990, 2000 and 2009 of Yantai Proper, Shandong Province China, 11 explanatory variables were chosen from two aspects: the elevation, slope, cost distance to major water area and cost distance to minor water area, which presented physical factors; cost distance to district center, cost distance to town center, cost distance to city expansion center, cost distance to major roads, cost distance to city roads, cost distance to county roads and cost distance to rural roads, which presented the socio-economic factors. Combined with spatial analysis tools and Logistic regression analysis model, we construct Logistic regression analyses with four objectives that were urban construction land, rural residential land, orchard and other lands. The results show that, cost distance to district center, cost distance to town center, cost distance to city expansion center and cost distance to city roads are the significant explanatory variables for the transition of cultivated land into urban construction land. The main explained factors on the transition of cultivated land into rural residential land are slope, cost distance to town center, cost distance to county roads and cost distance to rural roads. Slope, cost distance to minor water area, cost distance to town center, cost distance to county roads and cost distance to rural roads are the significant explanatory variables for the transition of cultivated land into orchard land. Elevation, slope, cost distance to major water area and cost distance to minor water area are the main explanatory variables on the transition of cultivated land into other land uses. | QIN Weishan ZHANG Yifeng LI Guangdong | 2015 | Chinese Geographical Science2015，25，3： | 5 |
| 3 | Protective electrode/electrolyte interphases for high energy lithium-ion batteries with p-toluenesulfonyl fluoride electrolyte additive显示文摘High energy density lithium-ion batteries using Ni-rich cathode(such as LiNi0.6Co0.2Mn0.2O2) suffer from severe capacity decay.P-toluenesulfonyl fluoride(pTSF) has been investigated as a novel film-forming electrolyte additive to enhance the cycling performances of graphite/LiNi0.6Co0.2Mn0.2O2 pouch cell.In comparison with the baseline electrolyte,a small dose of pTSF can significantly improve the cyclic stability of the cell.Theoretical calculations together with experimental results indicate that pTSF would be oxidized and reduced to construct protective interphase film on the surfaces of LiNi0.6Co0.2Mn0.2O2 cathode and graphite anode,respectively.These S-containing surface films derived from pTSF effectively mitigate the decomposition of electrolyte,reduce the interphasial impedance,as well as prevent the dissolution of transition metal ions from Ni-rich cathode upon cycling at high voltage.This finding is beneficial for the practical application of high energy density graphite/LiNi0.6Co0.2Mn0.2O2 cells. | Yanxia Che Xiuyi Lin Lidan Xing Xiongcong Guan Rude Guo Guangyuan Lan Qinfeng Zheng Wenguang Zhang Weishan Li | 2021 | Journal of Energy Chemistry2021，30，1： | 3 |
| 4 | A terbium activated multicolour photoluminescent phosphor for luminescent anticounterfeiting显示文摘The multicolor photoluminescence(PL) of a Tb3+singly activated NaYGeO4 phosphor is prepared by solid state method.For the first time,it is reported that the PL color of Tb3+in NaYGeO4 phosphor can be tuned from green to blue and,finally,to red by controlling the Tb3+content.The optimal tricolor phosphors are NaYGeO4:0.01 mol% Tb3+(red),NaYGeO4:0.5 mol% Tb3+(blue) and NaYGeO4:5 mol% Tb3+(green),respectively.The PL properties of the NaYGeO4:Tb3+ phosphor were studied in details.The results reveal that the PL color modulations of the NaYGeO4:Tb3+phosphor are essentially due to the cross-relaxation effect of Tb3+,and a possible mechanism on the cross-relaxation is proposed.According to these unique features,a multicolor PL image was fabricated based on the NaYGeO4:Tb3+ phosphor for potential applications in luminescent anticounterfeiting. | Jun Ma Yumiao Li Weishan Hu Wenxiang Wang Jiachi Zhang Jianhong Yang Yuhua Wang | 2020 | Journal of Rare Earths2020，38，10： | 2 |
| 5 | Phosphate limitation increases coenzyme Q10 production in industrial Rhodobacter sphaeroides HY01显示文摘Coenzyme Q10(CoQ10)is an important component of the respiratory chain in humans and some bacteria.As a high-value-added nutraceutical antioxidant,CoQ10 has excellent capacity to prevent cardiovascular disease.The content of CoQ10 in the industrial Rhodobacter sphaeroides HY01 is hundreds of folds higher than normal physiological levels.In this study,we found that overexpression or optimization of the synthetic pathway failed CoQ10 overproduction in the HY01 strain.Moreover,under phosphate-limited conditions(decreased phosphate or in the absence of inorganic phosphate addition),CoQ10 production increased significantly by 12%to220 mg/L,biomass decreased by 12%,and the CoQ10 productivity of unit cells increased by 27%.In subsequent fed-batch fermentation,CoQ10 production reached 272 mg/L in the shake-flask fermentation and 1.95 g/L in a 100-L bioreactor under phosphate limitation.Furthermore,to understand the mechanism associated with CoQ10 overproduction under phosphate-limited conditions,the comparatve transcriptome analysis was performed.These results indicated that phosphate limitation combined with glucose fed-batch fermentation represented an effective strategy for CoQ10 production in the HY01.Phosphate limitation induced a pleiotropic effect on cell metabolism,and that improved CoQ10 biosynthesis efficiency was possibly related to the disturbance of energy metabolism and redox potential. | Lu Zhang Leshi Liu Ke-Feng Wang Lan Xu Liming Zhou Weishan Wang Chuan Li Zheng Xu Tong Shi Haihong Chen Yuanhang Li Hui Xu XiuLiang Yang Zhichun Zhu Biqin Chen Dan Li Guanghuang Zhan Si-Liang Zhang Li-Xin Zhang Gao-Yi Tan | 2019 | Synthetic and Systems Biotechnology2019，4，4： | 2 |
| 6 | Bidirectional Linear Ultrasonic Motor Using Longitudinal Vibrating Transducers显示文摘 | Zhang Fan Chen Weishan Liu Junkao | 2005 | IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control2005，52，1： | 1 |
| 7 | Integrating PCR-free amplification and synergistic sensing for ultrasensitive and rapid CRISPR/Cas12a-based SARS-CoV-2 antigen detection显示文摘Antigen detection provides particularly valuable information for medical diagnoses;however,the current detection methods are less sensitive and accurate than nucleic acid analysis.The combination of CRISPR/Cas12a and aptamers provides a new detection paradigm,but sensitive sensing and stable amplification in antigen detection remain challenging.Here,we present a PCR-free multiple trigger dsDNA tandem-based signal amplification strategy and a de novo designed dual aptamer synergistic sensing strategy.Integration of these two strategies endowed the CRISPR/Cas12a and aptamer-based method with ultra-sensitive,fast,and stable antigen detection.In a demonstration of this method,the limit of detection was at the single virus level(0.17 fM,approximately two copies/μL)in SARS-CoV-2 antigen nucleocapsid protein analysis of saliva or serum samples.The entire procedure required only 20 min.Given our system’s simplicity and modular setup,we believe that it could be adapted reasonably easily for general applications in CRISPR/Cas12a-aptamer-based detection. | Xiangxiang Zhao Zhengduo Wang Bowen Yang Zilong Li Yaojun Tong Yuhai Bi Zhenghong Li Xuekui Xia Xiangyin Chen Lixin Zhang Weishan Wang Gao-Yi Tan | 2021 | Synthetic and Systems Biotechnology2021，6，4： | 1 |
| 8 | Manganese dioxide as an alternative cathodic catalyst to platinum in microbial fuel cells显示文摘 | Lixia Zhang Chengshuai Liu Li Zhuang Weishan Li Shungui Zhou Jintao Zhang | 2009 | Biosensors and Bioelectronics2009，，9： | 1 |
| 9 | An OSGi-based flexible and adaptive pervasive cloud infrastructure显示文摘There is a trend that diferent computing paradigms such as cloud computing,pervasive,and mobile computing are converging with each other.Due to this convergence,there arise unprecedented complexities,such as huge number of computing devices,flexibilities and adaptation of service infrastructure(infrastructure elasticity)for fitting dynamics of large smart city applications,expectations of powerful computing and storage capabilities on handhold devices,and so on.Therefore,a supporting infrastructure is needed,which can flexibly switch services at run time and can be used to enhance capabilities for small devices through component/service migrations.In this paper,we propose an elastic open service gateway initiative(OSGi)-based pervasive cloud(OSGi-PC)infrastructure which can make use of both the cloud computing capabilities and the component flexibilities from OSGi.OSGi-PC provides flexible management of component migrations between small devices themselves and powerful nodes in between,which is remaining a critical challenge for enabling mobile clouds.We have evaluated the OSGi-PC in terms of performance for adaptive service provision,and power consumption during service adaptation,performance and power consumption for component migrations in diferent scenarios,which show the usability of OSGi-PC. | ZHANG WeiShan CHEN LiCheng LIU Xin LU QingHua ZHANG PeiYing YANG Su | 2014 | Science China(Information Sciences)2014，57，3： | 1 |
| 10 | Study on a CAD/CAE system of die-casting 显示文摘 | Zhang Weishan Xiong Shoumei Liu Baicheng | 1997 | Journal of materials processing technology1997，，63： | 1 |
| 11 | Characterization of EGFR family gene aberrations in cholangiocarcinoma显示文摘 | Xiaoqing Yang Weishan Wang Chunni Wang Lin Wang Muyi Yang Mei Qi Hong Su Xiubin Sun Zhiyan Liu Juan Zhang Xiaomin Qin Bo Han | 2014 | Oncology Reports2014，，2： | 1 |
| 12 | Validation of Pervasive Cloud Task Migration with Colored Petri Net显示文摘Mobile devices are resource-limited, and task migration has become an important and attractive feature of mobile clouds. To validate task migration, we propose a novel approach to the simulation of task migration in a pervasive cloud environment. Our approach is based on Colored Petri Net(CPN). In this research, we expanded the semantics of a CPN and created two task migration models with different task migration policies: one that took account of context information and one that did not. We evaluated the two models using CPN-based simulation and analyzed their task migration accessibility, integrity during the migration process, reliability, and the stability of the pervasive cloud system after task migration. The energy consumption and costs of the two models were also investigated. Our results suggest that CPN with context sensing task migration can minimize energy consumption while preserving good overall performance. | Lianzhang Zhu Shouchao Tan Weishan Zhang Yong Wang Xiwei Xu | 2016 | Tsinghua Science and Technology2016，21，1： | 1 |
| 13 | Molybdenum car- bide as anodic atalyst for microbial fuel cell based on klebsiella pneumoniae显示文摘 | Zeng Lizhen Zhang Lixia Li Weishan | 2010 | Biosens Bioelectron2010，25，12： | 1 |
| 14 | Artificial interphases enable dendrite-free Li-metal anodes显示文摘Li-metal is an ideal anode that can provide rechargeable batteries with high energy density,but its application in large scale is restricted by its high activity that leads to the severe decomposition of electrolyte components(solvents and salts) and the growth of Li dendrites.These parasitic reactions are responsible for the cycle life deterioration and the safety accidents of rechargeable Li-metal batteries.Correspondingly,much effort has been made to regulate Li/electrolyte interface chemistry.In this review,we summarize some strategies that have been developed recently to stabilize Li/electrolyte interface by constructing protective interphases on Li-metal anodes.Firstly,the currently available understandings on the instability of Li/electrolyte interface are outlined.Then,artificial interphases recently constructed exsitu and in-situ are illustrated in detail.Finally,possible approaches to acquire more efficiently protective interphases are prospected. | Qiankui Zhang Si Liu Yitong Lu Lidan Xing Weishan Li | 2021 | Journal of Energy Chemistry2021，30，7： | 1 |
| 15 | Design of a linear-rotary ultrasonic motor for optical focusing inspired by the bionic motion principles of the earthworms显示文摘Multi-motor configuration of multi-DOF(degree of freedom)optical system is a major source of redundant structure,putting a limitation on the simple and miniaturized design.Thus,a novel two-DOF ultrasonic motor(USM)is proposed to provide a feasible method of application in the lens autofocus of the optical system.The proposed USM operates by one longitudinal mode and two orthogonal bending modes,which is inspired by the bionic motion principle of the earthworms.The frequency degeneration among the three working modes is per-formed,and the working principle of the USM is verified via the FEM simulation.A prototype of the two-DOF USM is fabricated,and its mechanical output characteristics are tested.The experimental results indicate that the prototype achieves the maximum rotary and linear speeds of 3319.6 rpm and 57.6 mm/s,respectively.Furthermore,we demonstrate the result of a simple focusing experiment using the prototype and obtain a series of clear pictures,which verifies the feasibility of application in the optical focusing system. | Yingzhi Wang Jie Deng Shijing Zhang He Li Weishan Chen Yingxiang Liu | 2022 | International Journal of Smart and Nano Materials2022，13，2： | 0 |
| 16 | A broad learning-based comprehensive defence against SSDP reflection attacks in IoTs显示文摘The proliferation of Internet of Things(IoT)rapidly increases the possiblities of Simple Service Discovery Protocol(SSDP)reflection attacks.Most DDoS attack defence strategies deploy only to a certain type of devices in the attack chain,and need to detect attacks in advance,and the detection of DDoS attacks often uses heavy algorithms consuming lots of computing resources.This paper proposes a comprehensive DDoS attack defence approach which combines broad learning and a set of defence strategies against SSDP attacks,called Broad Learning based Comprehensive Defence(BLCD).The defence strategies work along the attack chain,starting from attack sources to victims.It defends against attacks without detecting attacks or identifying the roles of IoT devices in SSDP reflection attacks.BLCD also detects suspicious traffic at bots,service providers and victims by using broad learning,and the detection results are used as the basis for automatically deploying defence strategies which can significantly reduce DDoS packets.For evaluations,we thoroughly analyze attack traffic when deploying BLCD to different defence locations.Experiments show that BLCD can reduce the number of packets received at the victim to 39 without affecting the standard SSDP service,and detect malicious packets with an accuracy of 99.99%. | Xin Liu Liang Zheng Sumi Helal Weishan Zhang Chunfu Jia Jiehan Zhou | 2023 | Digital Communications and Networks2023，9，5： | 0 |
| 17 | Semi-asynchronous personalized federated learning for short-term photovoltaic power forecasting显示文摘Accurate forecasting for photovoltaic power generation is one of the key enablers for the integration of solar photovoltaic systems into power grids.Existing deep-learning-based methods can perform well if there are sufficient training data and enough computational resources.However,there are challenges in building models through centralized shared data due to data privacy concerns and industry competition.Federated learning is a new distributed machine learning approach which enables training models across edge devices while data reside locally.In this paper,we propose an efficient semi-asynchronous federated learning framework for short-term solar power forecasting and evaluate the framework performance using a CNN-LSTM model.We design a personalization technique and a semi-asynchronous aggregation strategy to improve the efficiency of the proposed federated forecasting approach.Thorough evaluations using a real-world dataset demonstrate that the federated models can achieve significantly higher forecasting performance than fully local models while protecting data privacy,and the proposed semi-asynchronous aggregation and the personalization technique can make the forecasting framework more robust in real-world scenarios. | Weishan Zhang Xiao Chen Ke He Leiming Chen Liang Xu Xiao Wang Su Yang | 2023 | Digital Communications and Networks2023，9，5： | 0 |
| 18 | A 3-DOF piezoelectric robot with continuous walking gait aiming at cross-scale smooth motion显示文摘Piezoelectric robots play important roles in the field of micromanipulation, but it is difficult for them to generate steady precision motion at any moment. In order to eliminate the changing inertial force and improve the motion smoothness, this work proposes a piezoelectric robot with continuous walking gait inspired by ants. The idea is verified with theoretical models and numerical simulation, and the performances are evaluated with experiments. The robot is proven to have the ability to generate 3-DOF(dgeree of freedom) continuous smooth motions with constant speeds. The maximum and minimum smooth velocities have a difference of six orders of magnitude, realizing cross-scale velocity control. Besides, the motion resolution reaches several nanometers with the unlimited workspace, so the cross-scale displacement control can be also obtained. Furthermore, with great robustness against varying loads, the stable actuation capability of the robot is more than 22 times of the self-weight. To sum up,the proposed robot generates cross-scale smooth motion in both aspects of displacement and velocity, so it has good prospects in the applications requiring steady precision motion. The design philosophy and research methods in this work can be valuable references for further advances of micromanipulation robots. | YU HongPeng LIU YingXiang DENG Jie ZHANG ShiJing CHEN WeiShan | 2023 | Science China(Technological Sciences)2023，66，1： | 0 |
| 19 | Development of a pyrF-based counterselectable system for targeted gene deletion in Streptomyces rimosus显示文摘Streptomyces produces many valuable and important biomolecules with clinical and pharmaceutical applications.The development of simple and highly efficient gene editing tools for genetic modification of Streptomyces is highly desirable.In this study,we developed a screening system for targeted gene knockout using a uracil auxotrophic host(ΔpyrF)resistant to the highly toxic uracil analog of 5-fluoroorotic acid(5-FOA)converted by PyrF,and a non-replicative vector pKC1132-pyrF carrying the complemented pyrF gene coding for orotidine-5'-phosphate decarboxylase.The pyrF gene acts as a positive selection and counterselection marker for recombinants during genetic modifications.Single-crossover homologous integration mutants were selected on minimal medium without uracil by reintroducing pyrF along with pKC1132-pyrF into the genome of the mutantΔpyrF at the targeted locus.Double-crossover recombinants were generated,from which the pyrF gene,plasmid backbone,and targeted gene were excised through homologous recombination exchange.These recombinants were rapidly screened by the counterselection agent,5-FOA.We demonstrated the feasibility and advantage of using this pyrF-based screening system through deleting the otcR gene,which encodes the cluster-situated regulator that directly activates oxytetracycline biosynthesis in Streptomyces rimosus M4018.This system provides a new genetic tool for investigating the genetic characteristics of Streptomyces species. | Yiying YANG Qingqing SUN Yang LIU Hanzhi YIN Wenping YANG Yang WANG Ying LIU Yuxian LI Shen PANG Wenxi LIU Qian ZHANG Fang YUAN Shiwen QIU Jiong LI XuefengWANG Keqiang FAN Weishan WANG Zilong LI Shouliang YIN | 2021 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2021，22，5： | 0 |
| 20 | Innovative discontinuous-SEI constructed in ether-based electrolyte to maximize the capacity of hard carbon anode显示文摘Compared with graphite,the lower sodiation potential and larger discharge capacity of hard carbon(HC)makes it the most promising anode material for sodium-ion battery.Utilizing ether-based electrolyte rather than conventional carbonate-based electrolyte,HC achieves superior electrochemical performance.Nevertheless,the mechanism by which ether-based electrolyte improves the properties of HC is still controversial,primarily focusing on whether it forms solid electrolyte interphase(SEI)film.In this work,according to the sodium storage mechanisms in HC at low voltage(<0.1 V),including Na^(+)-diglyme co-interaction into the carbon layer(SEI forbidden)and desolvated Na^(+)insertion in the irregular carbon holes(SEI required),the NaPF6concentration in ether-based electrolyte was regulated,so as to construct a discontinuous-SEI on the surface of the HC anode,which significantly enhances the electrochemical performances of HC.Specifically,with 0.2 M NaPF6ether-based electrolyte,HC deliverers a discharge capacity of 459.7 mA h g^(-1)at 0.1 C and stays at 357.2 mA h g^(-1)after 500 cycles at 1 C,which is substantially higher than that of higher/lower salt concentration electrolytes. | Fanghong Zeng Lidan Xing Wenguang Zhang Zhangyating Xie Mingzhu Liu Xiaoyan Lin Guangxia Tang Changyong Mo Weishan Li | 2023 | Journal of Energy Chemistry2023，，4： | 0 |
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