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| 1 | Motion trajectory prediction based on a CNN-LSTM sequential model显示文摘Accurate monitoring the surrounding environment is an important research direction in the field of unmanned systems such as bio-robotics,and has attracted much research attention in recent years.The trajectories of surrounding vehicles should be predicted accurately in space and time to realize active defense and running safety of an unmanned system.However,there is uncertainty and uncontrollability in the process of trajectory prediction of surrounding obstacles.In this study,we propose a trajectory prediction method based on a sequential model,that fuses two neural networks of a convolutional neural network(CNN)and a long short-term memory network(LSTM).First,a box plot is used to detect and eliminate abnormal values of vehicle trajectories,and valid trajectory data are obtained.Second,the trajectories of surrounding vehicles are predicted by merging the characteristics of CNN space expansion and LSTM time expansion;the hyper-parameters of the model are optimized according to a grid search algorithm,which satisfies the double-precision prediction requirement in space and time.Finally,data from next generation simulation(NGSIM)and Creteil roundabout in France are taken as test cases;the correctness and rationality of the method are verified by prediction error indicators.Experimental results demonstrate that the proposed CNNLSTM method is more accurate and features a shorter time cost,which meets the prediction requirements and provides an effective method for the safe operation of unmanned systems. | Guo XIE Anqi SHANGGUAN Rong FEI Wenjiang JI Weigang MA Xinhong HEI | 2020 | Science China(Information Sciences)2020，63，11： | 24 |
| 2 | New Developments in Maritime Communications: a Comprehensive Survey显示文摘This paper summarizes the requirements for modern maritime wireless communication networks in the marine environments including the sea-to-sea and sea-to-shore communication scenarios.The existing maritime wireless communication systems are presented and the development of the state-of-the-art maritime communication systems is surveyed.Furthermore,a hierarchical and integrated maritime network architecture is proposed to satisfy the increasing various classes of services which demand different Quality of Service(QoS).Finally,the open issues for further development of maritime communications are identified. | Chen Weigang Yang Jinsheng Ma Jianguo Li Si | 2012 | China Communications2012，9，2： | 7 |
| 3 | Systematic characterization of transport and thermoelectric properties of a macroscopic graphene fiber显示文摘Graphene,有非凡的电、热、有弹性的性能的二维的材料,是未来技术的一个潜在的候选人。然而, graphene 的优异性质还没为 graphenederived 被认识到宏观的结构象 graphene 纤维那样。在这研究,我们系统地调查了温度(T) 依赖者运输和 graphene 纤维的热电的性质,包括热传导性() ,电的电导率() ,并且 Seebeck 系数(S) 。从 45.8 ~ 149.7 Wd | Weigang Ma Yingjun Liu Shen Yan Tingting Miao Shaoyi Shi Mincheng Yang Xing Zhang Chao Gao | 2016 | Nano Research2016，9，11： | 6 |
| 4 | Chemically doped macroscopic graphene fibers with significantly enhanced thermoelectric properties显示文摘当与突出的热电的性质结合了时,灵活便携电子学为收获系统的未来精力正在答应候选人。Graphene 和它的宏观的集会(例如,基于 graphene 的纤维和电影) 因为他们的非凡的电、机械的性质,因此是众多的研究的题目。然而,这些集会没由于他们的高内在的热传导性为热电的应用程序被认为合适。在这研究,溴做被表明是为显著地提高 graphene 纤维的热电的性质的一个有效方法。做提高声子由于增加的缺点散布并且因此减少热传导性,当电的传导性和 Seebeck 系数被费密增加时,铺平换至较低排挡。作为结果,优点的最大的数字是 2. | Weigang Ma Yingjun Liu Shen Yan Tingting Miao Shaoyi Shi Zhen Xu Xing Zhang Chao Gao | 2018 | Nano Research2018，11，2： | 6 |
| 5 | Light absorption properties and potential sources of brown carbon in Fenwei Plain during winter 2018–2019显示文摘A distinctive kind of organic carbon aerosol that could absorb ultraviolet-visible radiation is called brown carbon(Br C),which has an important positive influence on radiative budget and climate change.In this work,we reported the absorption properties and potential source of Br C based on a seven-wavelength aethalometer in the winter of 2018–2019 at an urban site of Sanmenxia in Fenwei Plain in central China.Specifically,the mean value of Br C absorption coefficient was 59.6±36.0 Mm^(-1) at 370 nm and contributed 37.7%to total absorption,which made a significant impact on visibility and regional environment.Absorption coefficients of Br C showed double-peak pattern,and Br C had shown small fluctuations under haze days compared with clean days.As for the sources of Br C,Br C absorption coefficients expressed strong correlations with element carbon aerosols and primary organic carbon aerosols,indicating that most of Br C originated from primary emissions.The linear correlations between trace metal elements(K,As,Fe,Mn,Zn,and Pb)and Br C absorption coefficients further referred that the major sources of Br C were primary emissions,like coal burning,biomass burning,and vehicle emissions.The moderate relationship between Br C absorption coefficients and secondary organic aerosols suggested that secondary production of Br C also played an important role.The 120 hr backward air mass trajectories analysis and concentration-weighted trajectories analysis were also used to investigate potential sources of Br C in and around this area,which inferred most parts of Br C were derived from local emissions. | Wenyu Zhang Weigang Wang Jie Li Shuangliang Ma Chaofan Lian Kun Li Bo Shi Mingyuan Liu Yanyu Li QingQing Wang Yele Sun Shengrui Tong Maofa Ge | 2021 | Journal of Environmental Sciences2021，33，4： | 6 |
| 6 | Multi-parameter Sensitivity Analysis and Application Research in the Robust Optimization Design for Complex Nonlinear System显示文摘The current research of complex nonlinear system robust optimization mainly focuses on the features of design parameters, such as probability density functions, boundary conditions, etc. After parameters study, high-dimensional curve or robust control design is used to find an accurate robust solution. However, there may exist complex interaction between parameters and practical engineering system. With the increase of the number of parameters, it is getting hard to determine high-dimensional curves and robust control methods, thus it's difficult to get the robust design solutions. In this paper, a method of global sensitivity analysis based on divided variables in groups is proposed. By making relevant variables in one group and keeping each other independent among sets of variables, global sensitivity analysis is conducted in grouped variables and the importance of parameters is evaluated by calculating the contribution value of each parameter to the total variance of system response. By ranking the importance of input parameters, relatively important parameters are chosen to conduct robust design analysis of the system. By applying this method to the robust optimization design of a real complex nonlinear system-a vehicle occupant restraint system with multi-parameter, good solution is gained and the response variance of the objective function is reduced to 0.01, which indicates that the robustness of the occupant restraint system is improved in a great degree and the method is effective and valuable for the robust design of complex nonlinear system. This research proposes a new method which can be used to obtain solutions for complex nonlinear system robust design. | MA Tao ZHANG Weigang ZHANG Yang TANG Ting | 2015 | Chinese Journal of Mechanical Engineering2015，28，1： | 4 |
| 7 | Dual-Wavelength Laser Flash Raman Spectroscopy Method for In-Situ Measurements of the Thermal Diffusivity: Principle and Experimental Verification显示文摘This paper presents an in-situ, non-contact, non-destructive 'dual-wavelength laser flash Raman spectroscopy method' for measuring the thermal diffusivity. In this method, a heating pulse is used to heat the sample and another pulsed laser with a different wavelength and negligible heating effect is used as a probe to measure the sample temperature changes during the heating and cooling periods from the Raman peak shifts. The sample temperature rise and fall curves are measured by changing the delay between the heating pulse and the probing pulse with the thermal diffusivity then characterized by fitting the temperature curves. The time delay between the heating and probing pulses can be precisely controlled with a minimum step of 100 ps. Hence, the temperature variation can be scanned with an ultra-high temporal resolution of up to 100 ps, which significantly improves the measurement accuracy of transient thermal parameters. The measurement accuracy of this method has been verified using a bulk material model and experiments. The measured thermal diffusivity of a silicon sample has been obtained to be 8.8×10^(-5 )m^2/s with a 3% difference between the measured value and the average result for bulk silicon in the literature which verifies the reliability and accuracy of this method. | FAN Aoran HU Yudong MA Weigang WANG Haidong ZHANG Xing | 2019 | Journal of Thermal Science2019，28，2： | 4 |
| 8 | Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment显示文摘Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil society.The key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term perspective.Here,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese Megacity.The station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol particles.This produced long-term,comprehensive big data with around 1�10^(11)bytes per year.In this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities. | Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala | 2020 | Big Earth Data2020，4，3： | 3 |
| 9 | Kinetics of oxidation of dimethyl trisulfide by potassium permanganate in drinking water显示文摘Metabolites of algae such as geosmin, 2- methylisoborneol etc. are reported to induce pungent odors into drinking water and attract additional scientifc attention. Recently, in China, taste and odor outbreaks in drinking water supply have become increasingly common. In source water affected by eutrophication, dimethyl trisulfide, speculated to be produced by decayed algae, was found to be the source of taste and odor issues and can be removed effectively by usual oxidation agents. In this experimental study, batch scale tests were carried out focusing on the removal of dimethyl trisulfide. Reaction kinetics of dimethyl trisulfide oxidized by potassium permanganate in water had been studied; influence factors such as pH, organic substrate, other existed taste, and odor contaminant in equivalent concentration were also dis- cussed. Results showed that dimethyl trisulfide can be removed by potassium permanganate efficiently; the ratio can reach more than 70% with oxidant dosage of 4 mg. L~ and contact time prolonged to 120 min. The dimethyl trisulfide decomposition followed a second-order kinetics pattern with a rate constant k -- 0.00213 L.(min.mg)-1. Typically, the degradation rate of dimethyl trisulfide was increased with the increasing KMnO4 dosage, but dramatically dropped with the increasing levels of humic acid (1.8-4.5 mg. L-1) and other odor-causing compounds (e.g. fl-cyclocitral, 0-1886.0 pg.L-1). Solution pH (5.2- 9.0) and initial dimethyl trisulfide concentration did not significantly affected the degradation. This study demon- strates that KMnO4 oxidation is an effective option to remove dimethyl trisulfide from water. | Xiaoyan MA Shifei HU Hongyu WANG Jun LI Jing HUANG Yun ZHANG Weigang LU Qingsong LI | 2012 | Frontiers of Environmental Science & Engineering2012，6，2： | 3 |
| 10 | Low-temperature sintered(Na_(1/2)Bi_(1/2))TiO_(3)-based incipient piezoceramics for co-fired multilayer actuator application显示文摘Low-temperature sintered(Na_(1/2)Bi_(1/2))_(0.935)Ba_(0.065)Ti_(0.975)(Fe_(1/2)Nb_(1/2))_(0.025)O_(3)(NBT-BT-0.025FN)lead-free incipient piezoceramics were investigated using high-purity Li_(2)CO_(3) as sintering aids.With the ≤0.5 wt%Li_(2)CO_(3) addition,the introduced Li^(+) cations precede to enter the A-sites of the perovskite lattice to compensate for the A-site deficiencies.Once the addition exceeds 0.5 wt%,the excess Lit cations will occupy B-sites and give rise to the generation of oxygen vacancies,which accelerate the mass transport and thus lower the sintering temperature effectively from 1100℃ down to 925℃.It was also found that a small amount of Lit addition has little effect on the phase structure and electromechanical properties of the system,but overweight seriously disturbs these characteristics because of the large lattice distortion.The sintered NBT-BT-0.025FN incipient piezoceramics with 1.25 wt%Li_(2)CO_(3) addition at 925℃ provides a large strain of 0.33% and a corresponding large signal piezoelectric coefficient d_(33)^(*) of 550 pm/V at 60 kV/cm,indicating this system is a very promising candidate for lead-free co-fired multilayer actuator application. | Pengyuan Fan Yangyang Zhang Shan-Tao Zhang Bing Xie Yiwei Zhu Mohsin Ali Marwat Weigang Ma Kai Liu Liang Shu Haibo Zhang | 2019 | Journal of Materiomics2019，5，3： | 3 |
| 11 | Dual-wavelength flash Raman mapping method for measuring thermal diffusivity of the suspended nanowire显示文摘In this paper,we present a dual-wavelength flash Raman(DFR)mapping method for measuring the thermal diffusivity of a suspended nanowire.A heating pulse is used to heat the nanowire sample,and a probing pulse of different wavelength is used to measure the increase in temperature.The laser absorption coefficient can be eliminated by normalization,and the thermal diffusivity of the sample can be extracted from the normalized temperature increase.An infinite heat conduction model is used in this method to avoid the influence of boundary thermal resistance.By changing the position of the probing laser center,the measurement sensitivity of thermal diffusivity can be further improved.The position of maximum sensitivity is influenced by the thermal diffusivity of the nanowire,width of the heating pulse,radius of the heating laser spot,and characteristic length of the sample.To comprehensively analyze the influences of the various parameters,obtain the best measurement conditions,and attain maximum sensitivity,we propose a dimensionless physical model to analyze the heat conduction of the suspended nanowire.Based on the analysis of the best dimensionless parameters,the corresponding appropriate measurement conditions can be determined.Sensitivity analysis shows that when the radius of the heating laser spot is 1%of the length of the nanowire,the sensitivity of the DFR mapping method can be more than four times that of the concentric DFR method for measuring the thermal diffusivity of the nanowire. | HU YuDong FAN AoRan WANG HaiDong MA WeiGang ZHANG Xing | 2020 | Science China(Technological Sciences)2020，63，5： | 2 |
| 12 | Recent Progress in Atmospheric Chemistry Research in China: Establishing a Theoretical Framework for the “Air Pollution Complex”显示文摘Atmospheric chemistry research has been growing rapidly in China in the last 25 years since the concept of the“air pollution complex”was first proposed by Professor Xiaoyan TANG in 1997.For papers published in 2021 on air pollution(only papers included in the Web of Science Core Collection database were considered),more than 24000 papers were authored or co-authored by scientists working in China.In this paper,we review a limited number of representative and significant studies on atmospheric chemistry in China in the last few years,including studies on(1)sources and emission inventories,(2)atmospheric chemical processes,(3)interactions of air pollution with meteorology,weather and climate,(4)interactions between the biosphere and atmosphere,and(5)data assimilation.The intention was not to provide a complete review of all progress made in the last few years,but rather to serve as a starting point for learning more about atmospheric chemistry research in China.The advances reviewed in this paper have enabled a theoretical framework for the air pollution complex to be established,provided robust scientific support to highly successful air pollution control policies in China,and created great opportunities in education,training,and career development for many graduate students and young scientists.This paper further highlights that developing and low-income countries that are heavily affected by air pollution can benefit from these research advances,whilst at the same time acknowledging that many challenges and opportunities still remain in atmospheric chemistry research in China,to hopefully be addressed over the next few decades. | Tong ZHU Mingjin TANG Meng GAO Xinhui BI Junji CAO Huizheng CHE Jianmin CHEN Aijun DING Pingqing FU Jian GAO Yang GAO Maofa GE Xinlei GE Zhiwei HAN Hong HE Ru-Jin HUANG Xin HUANG Hong LIAO Cheng LIU Huan LIU Jianguo LIU Shaw Chen LIU Keding LU Qingxin MA Wei NIE Min SHAO Yu SONG Yele SUN Xiao TANG Tao WANG Tijian WANG Weigang WANG Xuemei WANG Zifa WANG Yan YIN Qiang ZHANG Weijun ZHANG Yanlin ZHANG Yunhong ZHANG Yu ZHAO Mei ZHENG Bin ZHU Jiang ZHU | 2023 | Advances in Atmospheric Sciences2023，40，8： | 2 |
| 13 | Breakdown of shield gaps in vacuum interrupters显示文摘The objective of this paper is to determine how the high-voltage discharging metal vapour deposited on the nearby ceramic inner surface influences the breakdowns of gaps between centre shield and end shield in vacuum interrupters.Two types of shield materials were selected,namely copper and stainless steel.The end curvature radius of the shield was 3 mm.The distance between the shields could adjust manually from 4 to 8 mm.The distance between the shields and ceramic was 3.5 mm.The negative polarity standard lightning impulse voltage(12/50μs)was repeated for 900 operations based on an up-and-down method.The experimental results illustrated that the metal deposition layer on the inner surface of the ceramic en-velope significantly influenced the breakdown voltage of the shield gaps.At a shield gap distance of d?4 mm,the breakdown voltage of the shield gap increased from an initial lower voltage to the saturation voltage by approximately 200 operations.Then,the breakdown voltage decreased to a lower voltage range during only 50 operations,and the breakdown voltage maintained at this lower voltage range until the end of 900 operations.Furthermore,as the shield gap distance increased from d?4 to 6 mm and 8 mm,the breakdown voltage also maintained at this lower voltage range.A metal deposition layer was formed on the inner surface of ceramic by repetitive application of the lightning impulse voltage.To analyse the influence of the metal deposition layer,the electric field distributions were calculated for the original vacuum interrupter and the vacuum interrupter with the metal deposition layer on the ceramic inner surface.The simulation results suggested that the metal deposition layer took part in the breakdown path between the shield gaps and deteriorated the insulation performance. | Weigang Feng Zhiyuan Liu Hui Ma Yingsan Geng Jianhua Wang Lalian Li Dongli Bi | 2021 | High Voltage2021，6，4： | 2 |
| 14 | Quantitative analysis on friction stress of hot-extruded AZ31 magnesium alloy at room temperature显示文摘Mg alloy AZ31 with ~79%(volume fraction of scattering less than 30?) basal-fiber texture through hot extrusion exhibits strong grain-size dependent yield strength. Samples with grain sizes varying from4.5 to 22.3 ηm were obtained by altering annealing time durations. The Hall-Petch relations of tension and compression are σ_(0.2)= 86+200 d^(-1/2) and σ_(0.2)= 17 + 327 d^(-1/2), respectively. Considering the correlation between grain orientation and deformation modes, a novel weighted average method of calculating friction stress 0 was proposed, and results of calculation agreed with the experimental ones, which can reasonably understand the yielding behavior in tension and compression. | Ling Wang Yiquan Zhao Jing Zhang Ru Ma Yandong Liu Yinong Wang Qun Zhang Weigang Li Yuan Zhang | 2018 | Journal of Materials Science & Technology2018，34，10： | 2 |
| 15 | Silkworm Silk Fibers with Multiple Reinforced Properties Obtained through Feeding Ag Nanowires显示文摘Silkworm silk fbers have been woven into textiles for thousands of years,because of their attractive luster,good mechanical properties,excellent biocompatibility,and large-scale production.With the development of human society,preparation of silk fbers with modifed or enhanced properties are highly desirable for potential applications in structural materials and smart textiles.Herein,we realized the reinforcement of multiple properties of silk fbers by feeding silkworms with Ag nanowire(Ag NW)modifed diets.The obtained silk fbers show obviously enhanced comprehensive mechanical properties,including improved tensile strength,elongation at break,tensile modulus,and toughness,which are increased by 37.2%,37.6%,68.3%,and 69.8%,respectively.Furthermore,compared with unmodifed silk,the electrical conductivity and thermal conductivity of modifed silk fbers are improved by 246.4%and 32.1%,respectively.The analysis on the components and structure shows that the incorporated Ag NWs lead to increased content of random coil/α-helix,improved orientation of crystallites,and increased content of Ag compared to pristine silk fbers,which may contribute to the enhanced mechanical,electrical,and thermal properties. | Haojie Lu Muqiang Jian Zhe Yin Kailun Xia Shaoyi Shi Mingchao Zhang Huimin Wang Xiaoping Liang Weigang Ma Xing Zhang Yingying Zhang | 2022 | Advanced Fiber Materials2022，4，3： | 2 |
| 16 | Kindlin 2 promotes breast cancer invasion via epigenetic silencing of the microRNA200 gene family显示文摘 | Yu Yu Junzhou Wu Lizhao Guan Lihua Qi Yan Tang Bo Ma Jun Zhan Yunling Wang Weigang Fang Hongquan Zhang | 2013 | Int J Cancer2013，，6： | 1 |
| 17 | Game strategies for distributed denial of service defense in the Cloud of Things显示文摘Integration of the IoT(Internet of Things)with Cloud Computing,termed as the CoT(Cloud of Things)can help achieve the goals of the envisioned IoT and future Internet.In a typical CoT infrastructure,the data collected from wireless sensor networks and IoTs is transmitted through a SG(Smart Gateway)to the cloud.The bandwidth between an IoT access point and SG becomes a bottleneck for information transmission between the IoT and the cloud.We propose a novel game theory model to describe the CoT attacker,who expects to use minimum set and energy consumption of IoT attack devices to occupy as many bandwidth resources as possible in a given time period;and the defender,who expects to minimize false alarms.By analyzing this model,we have found that the game theory model is a non-cooperative and repeated incomplete information game,and Nash equilibrium is existent,perfected by the subgame.The best strategy for each stage of the attack is to adjust the attack link number dynamically based on the comparison results of value E and turning point E_(0)for each time period.At the same time,the defender adjusts the threshold valueβdynamically,based on the comparison results of the Load value and expected value ofαfor each time period.The simulation result shows that our strategy can significantly mitigate the harm of a distributed denial of service attack. | WANG Yichuan ZHANG Yefei HEI Xinhong JI Wenjiang MA Weigang | 2016 | Journal of Communications and Information Networks2016，1，4： | 1 |
| 18 | Add-on effect of Qinbei Qingfei Yiqi granules for ventilator-associated pneumonia in intensive care units:a randomized controlled trial显示文摘OBJECTIVE:To evaluate the add-on effect of Qinbei Qingfei Yiqi(QBQFYQ) granules for ventilator-associated pneumonia(VAP) in non-infectious critically ill patients.METHODS:In this randomized controlled trial, 80non-infectious critically ill patients undergoing mechanical ventilation in the intensive care unit(ICU)were randomly divided into two groups:those receiving QBQFYQ granules plus usual treatment(experimental group, n = 50) and those receiving only the usual treatment(control group, n = 30).The main outcome measures were VAP rate, time of VAP occurrence, duration of mechanical ventilation,and length of ICU stay.Interleukin-6(IL-6), C-reactive protein(CRP), and T-lymphocyte(CD4+, CD8+,and CD4+/CD8+ ratio) serum levels were also evaluated before and after treatment.RESULTS:Compared with the control group treatment, QBQFYQ administration significantly reduced the duration of mechanical ventilation [(9.58± 3.14) vs(12.52 ± 4.33) days] and length of ICU stay [(14.57 ± 3.72) vs(17.82 ± 5.24) days] and delayed VAP occurrence [(4.31 ± 0.86) vs(2.43 ± 0.27)days].Additionally, CRP and IL-6 serum levels and CD4+/CD8+ ratio were significantly lower in the experimental group(P < 0.05) than in the control group.However, there were no significant differences in hospital mortality rate(30.0% vs 33.3%) and adverse events(4.0% vs 6.7%).CONCLUSION:QBQFYQ delays the time of VAP occurrence and shortens the duration of mechanical ventilation in non-infectious critically ill patients,possibly through anti-inflammatory and immunomodulatory mechanisms. | Jia Weigang Qu Ying Wang Wei Song Bo Zhao Lili Ma Shu Wang Dandan | 2017 | Journal of Traditional Chinese Medicine2017，37，2： | 1 |
| 19 | A Poriferous Nanoflake-Assembled Flower-Like Ni_(5)P_(4) Anode forHigh-Performance Sodium-Ion Batteries显示文摘Sodium-ion batteries(SIBs)have been regarded as one of the most competitive alternatives for lithium-ion batteries(LIBs)due to the abundance of sodium and comparable electrochemical characteristics of sodium to that of lithium.However,while highly desired,developing stable anode materials remains a critical challenge.In this work,the development of a stable anode for SIBs is reported,a poriferous nanoflake-assembled flower-like nickel tetraphosphide(PNAF-NP)with high surface area and typical mesoporous property.Due to the unique structure,the PANF-NP anode exhibits excellent reversible capacity of 648.34mAhg^(-1) at 0.2Ag^(-1) with a Coulombic efficiency of 98.67%,and superior cycling stability at 0.2Ag^(-1) with high retention capacity of 456.34 mAhg^(-1) and average Coulombic efficiency of 99.19%after 300 cycles.Moreover,the high reversible capacity of 614.43,589.49,512.66,and 432.23mAhg^(-1) is achieved at 0.5,1,2,and 5Ag^(-1),respectively,indicating the superior rate capability of the PNAF-NP anode.This work represents a great advancement in the field of SIBs by reporting a high-performance anode material. | Ruihan Zhang Vidhur Raveendran Yining He Andy Yau Austin Chang Cheng Chi Sungyool Bong Feng Cheng Weigang Ma Jun Chen | 2021 | Energy Material Advances2021，，1： | 1 |
| 20 | Progress and perspective of high strain NBT-based lead-free piezoceramics and multilayer actuators显示文摘In this review,the evolution of high strain Na_(0.5)Bi_(0.5)TiO_(3)-based lead-free piezoceramics and their multilayer actuators has been explored.First,in terms of Na_(0.5)Bi_(0.5)TiO_(3)-based ceramic materials,the origin of high strain,the typical chemical modification methods of obtaining large strain and extrinsic factors affecting the large strain are discussed.Then it briefly summarizes the problems existing in Na_(0.5)Bi_(0.5)TiO_(3)-based ceramics for multilayer actuator applications.Strategies to optimize strain performance by means of microstructure control and phase structure design are also discussed.Thereafter,in terms of multilayer actuator,we describe its characteristics,applications and preparation process systematically,as well as the recent development of Na_(0.5)Bi_(0.5)TiO_(3)-based multilayer actuator.At last,perspectives on directions of following work and promising fields for the applications of the materials and their devices are presented. | Pengyuan Fan Kai Liu Weigang Ma Hua Tan Qi Zhang Ling Zhang Changrong Zhou David Salamon Shan-Tao Zhang Yangjun Zhang Bo Nan Haibo Zhang | 2021 | Journal of Materiomics2021，7，3： | 1 |
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