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765 条 记 录,以下是 1-30

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Machine learning assisted design of high entropy alloys with desired property
ACTA MATERIALIAWen, Cheng Zhang, Yan Wang, Changxin Xue, Dezhen Bai, Yang Antonov, Stoichko Dai, Lanhong Lookman, Turab Su, Yanjing  出版年:2019
We formulate a materials design strategy combining a machine learning (ML) surrogate model with experimental design algorithms to search for high entropy alloys (HEAs) with large hardness in a model Al-Co-Cr-Cu-Fe-Ni sys...
Modeling solid solution strengthening in high entropy alloys using machine learning
ACTA MATERIALIAWen, Cheng Wang, Changxin Zhang, Yan Antonov, Stoichko Xue, Dezhen Lookman, Turab Su, Yanjing  出版年:2021
Solid solution strengthening (SSS) influences the exceptional mechanical properties of single-phase high entropy alloys (HEAs). Thus, given the vast compositional space, identifying the underlying factors that control SS...
A review of the thermal stability of metastable austenite in steels: Martensite formation
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGYLi, Yong San Martin, David Wang, Jinliang Wang, Chenchong Xu, Wei  出版年:2021
Metastable austenite plays a critical role in achieving improved combinations of high strength and high ductility/toughness in the design of advanced high-strength steels (AHSS). The thermal stability of metastable auste...
Optimizing crack initiation energy in austenitic steel via controlled martensitic transformation
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGYHuang, Minghao Wang, Lingyu Wang, Chenchong Li, Yizhuang Wang, Jinliang Yuan, Jiahua Hu, Jun Huang, Mingxin Xu, Wei  出版年:2024
Although the seemingly negative effect of deformation-induced martensite (DIM) volume fraction on the impact toughness of austenitic steels has been well documented, it relies mostly on analyzing crack propagation withou...
Distributed adaptive fixed-time formation control for UAV-USV heterogeneous multi-agent systems
OCEAN ENGINEERINGLiu, Haitao Weng, Peijun Tian, Xuehong Mai, Qingqun  出版年:2023
This paper investigates formation trajectory tracking control for heterogeneous multi-agent systems with external disturbances, model uncertainties and input saturation. The system that is considered comprises one unmann...
Water jet impact damage mechanism and dynamic penetration energy absorption of 2A12 aluminum alloy
VACUUMZhang, Ping Liu, Zehua Yue, Xiujie Wang, Penghao Zhai, Yanchun  出版年:2022
This study aims to explore the waterjet cavitation impact (WCI) mechanism of 2A12 aluminum alloy and its dynamic penetration energy absorption after WCI treatment. The effects of WCI process parameters on the re-sidual s...
荔枝果肉热风干燥薄层模型
《农业机械学报》关志强 王秀芝 李敏 蒋小强 谢晶  出版年:2012
利用热泵干燥装置探讨了热风温度和热风风速对荔枝果肉干燥水分比MR和干燥速率U的影响。结果表明:荔枝果肉薄层热风干燥是内部水分扩散控制的降速干燥过程。对9种常见食品薄层干燥模型进行试验数据非线性拟合,通过比较评价决定系数R...
关键词:荔枝果肉  热泵干燥  干燥特性  薄层干燥模型  被引量:86
Detection and counting of banana bunches by integrating deep learning and classic image-processing algorithms
COMPUTERS AND ELECTRONICS IN AGRICULTUREWu, Fengyun Yang, Zhou Mo, Xingkang Wu, Zihao Tang, Wei Duan, Jieli Zou, Xiangjun  出版年:2023
Robots must first detect the number of banana bunches when making judgements on sterile bud removal and estimating wEIght for harvest in the field environment. Banana bunches are complex in shape, arranged in a nonlinear...
Three-dimensional discrete particle model for gas-solid fluidized beds on unstructured mesh
CHEMICAL ENGINEERING JOURNALWu, C. L. Berrouk, A. S. Nandakumar, K.  出版年:2009
A robust three-dimensional discrete particle model (3D DPM) for unstructured meshes is presented to model the gas-solid flows in fluidized beds. The finite volume method is used to discretize the governing equations of t...
Effect of heat treatment process on the micro machinability of 7075 aluminum alloy
VACUUMZhang, Ping Liu, Junling Gao, Yeran Liu, Zehua Mai, Qingqun  出版年:2023
This work aims to investigate the effect of heat treatment process on the micro machinability of 7075 aluminum alloy,7075 aluminum alloy was treated with T6, T73 and RRA.T6 single-stage aging process is 120 degrees C x 2...
A robust and self-powered tilt sensor based on annular liquid-solid interfacing triboelectric nanogenerator for ship attitude sensing
SENSORS AND ACTUATORS A-PHYSICALWang, Song Wang, Yan Liu, Dehua Zhang, Ziyi Li, Wenxiang Liu, Changxin Du, Taili Xiao, Xiu Song, Liguo Pang, Hongchen Xu, Minyi  出版年:2021
Ship's attitude information is of great significance for navigation safety, cargo handling monitoring, and operation management. It is highly desired to develop an electromechanical integrated tilt sensor which can work ...
Effect of aging plus cryogenic treatment on the machinability of 7075 aluminum alloy
VACUUMZhang, Ping Liu, Zehua Liu, Junling Yu, Jiang Mai, Qingqun Yue, Xiujie  出版年:2023
This work aims to explore the effect of aging plus cryogenic treatment on the machinability of 7075 aluminum alloy in high speed cutting. First, 7075 aluminum alloy samples are pretreated by T6 and T6I4. Then they are cr...
Investigation of Droplet Dynamic Behavior in Pemfcs Gas Diffusion Layer and Gas Channel with Micro-Ct and Lattice Boltzmann Method
SSRNLv, Xuecheng Zhou, Zhifu Wu, Wei-Tao Wei, Lei Gao, Linsong Lyu, Jizu Hu, Chengzhi Li, Yang Li, Yubai Song, Yongchen  出版年:2024
This study reconstructed the 3D structure for the gas diffusion layer (GDL) of proton exchange membrane fuel cells (PEMFCs) using the micro-CT technique and investigated the dynamic behavior of droplets inside the multi-...
Influence of DIMT on impact toughness: Relationship between crack propagation and the α′-martensite morphology in austenitic steel
Materials Science and Engineering: AHuang, Minghao Wang, Chenchong Wang, Lingyu Wang, Jinliang Mogucheva, Anna Xu, Wei  出版年:2022
The trade-off between transformation-induced plasticity (TRIP) strengthening and the intrinsically brittle nature of deformation-induced α′-martensite (DIM) has been a long-standing dilemma in optimizing the strength–tou...
Wavenumber prediction and measurement of axisymmetric waves in buried fluid-filled pipes: Inclusion of shear coupling at a lubricated pipe/soil interface
JOURNAL OF SOUND AND VIBRATIONMuggleton, J. M. Yan, J.  出版年:2013
Acoustic methods have been widely used to detect water leaks in buried fluid-filled pipes, and these technologies also have the potential to locate buried pipes and cables. Relatively predictable for metal pipes, there i...
Short-time performance of composite-medium line-source model for predicting responses of ground heat exchangers with single U-shaped tube
INTERNATIONAL JOURNAL OF THERMAL SCIENCESYang, Yi Li, Min  出版年:2014
A composite-medium line-source model has been recently developed for modeling short-time thermal processes of borehole ground heat exchangers. The composite-medium line-source model is attractive for applications where t...
Planning feed speed in cold ring rolling
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTUREYan, Feng-Lin Hua, Lin Wu, Yong-Qiao  出版年:2007
Feed speed needs to be controlled during cold ring rolling but first it must be planned. However, up to now, it has been set mainly by trials and experience, as the existing method is inefficient. This paper aims to find...
Xct Images-Based Pore-Scale Numerical Investigation for Heat Transfer Using Copper Foam Filled with Paraffin Phase Change Material
SSRNLiu, Xinyu Zhou, Zhifu Wu, Wei-Tao Wei, Lei Hu, Chengzhi Lyu, Jizu Huang, Heng Li, Yubai Song, Yongchen  出版年:2024
The principle of phase change heat transfer using copper foam in the paraffin phase change material (PPCM) are not well understood. In this study, based on X-ray computed tomography (XCT), three dimensional (3D) geometri...
Influence of microwave power, metal oxides and metal salts on the pyrolysis of algae
BIORESOURCE TECHNOLOGYLi Longjun Ma Xiaoqian Xu Qing Hu Zhifeng  出版年:2013
The work was to investigate the influence of microwave power, metal oxides and metal salts onto the pyrolysis of algae (4.55 wt.% moisture). It was found that the heating rate and the final temperature would increase as ...
Accurate void fraction calculation for three-dimensional discrete particle model on unstructured mesh
CHEMICAL ENGINEERING SCIENCEWu, C. L. Zhan, J. M. Li, Y. S. Lam, K. S. Berrouk, A. S.  出版年:2009
An accurate and efficient analytical method for computing the three-dimensional local void fraction is proposed in the context of discrete particle modeling. it is developed for the general case of unstructured meshes wh...
Experimental and modeling study of NO formation in methyl acetate + air flames
Combustion and FlameLubrano Lavadera, Marco Li, Shishi Brackmann, Christian Konnov, Alexander A.  出版年:2022
Premixed laminar flat non-stretched flames of methyl acetate + air have been studied at atmospheric pressure. The heat flux method was employed to stabilize the flames over equivalence ratios ? = 0.7–1.5 at initial gas t...
Modeling Study on Anisotropic Transport Properties of Pemfc Gdls Facilitated by Xct
SSRNLiu, Hang Li, Yang Huang, Heng Zhou, Zhifu Wu, Wei-Tao Wei, Lei Lyu, Jizu Hu, Chengzhi Li, Yubai Song, Yongchen  出版年:2025
The gas diffusion layer (GDL) of proton exchange membrane fuel cells (PEMFCs) is a critical component for the transport of reactants. The efficiency of reactant gas transport remains a major technical challenge in the fi...
Robust trajectory tracking control of marine surface vessels with uncertain disturbances and input saturations
NONLINEAR DYNAMICSLiu, Haitao Chen, Guangjun  出版年:2020
In this paper, a novel robust trajectory tracking control law is proposed for marine surface vessels with uncertain disturbances and input saturations using a tan-type barrier Lyapunov function and a backstepping techniq...
Magnesium Substrates Employing Hydrophobic Pdms/Mmt Coating Strategy for Simultaneous Achievement of Self-Cleaning, Corrosion Resistance, and Electromagnetic Shielding
SSRNDuan, Chunmei Han, Lei Yang, Guanda Schubert, Dirk Zhang, Taochuan  出版年:2024
A highly efficient surface coating strategy using polydimethylsiloxane (PDMS) modified montmorillonite (MMT) was revealed, to enhance the surface performance and durability of magnesium substrates. Contact angle, self-cl...
Microstructure and property of SiC coating for carbon materials
FUSION ENGINEERING AND DESIGNZhao, Juan Wang, Gui Guo, Quangui Liu, Lang  出版年:2007
SiC coating has been developed on four kinds of carbon substrates using a slurry-sintering method. The relationship between the microstructure and property of SiC coating and carbon substrates was investigated experiment...
Disinfection efficacy of ultraviolet germicidal irradiation on airborne bacteria in ventilation ducts
INDOOR AIRYang, Yi Zhang, Huihui Nunayon, Sunday Segbenu Chan, Vincent Lai, Alvin C. K.  出版年:2018
A full-scale ventilation duct ultraviolet germicidal irradiation (in-duct UVGI) system was designed to investigate its disinfection efficacy on five airborne pathogens: Serratia marcescens, Pseudomonas alcaligenes, Esche...
Robust fixed-time H∞ tracking control of UUVs with partial and full state constraints and prescribed performance under input saturation
Ocean EngineeringLiu, Haitao Qi, Zhenghong Yuan, Jianbin Tian, Xuehong  出版年:2023
In this paper, a fixed-time tracking control problem for an unmanned underwater vehicle (UUV) is investigated in the case of strong external sudden disturbances, model uncertainty, time-varying disturbances and specified...
Study on surface integrity and fatigue performance of FeCoCrNiAl?.? high-entropy alloy based on thermo-mechanical coordinated control
VacuumZhang, Ping Lin, Zhenyong Yue, Xiujie Sun, Yajie Zhou, Hanping Zhang, Jinlong  出版年:2024
This study investigates the effects of various lubrication techniques on the surface integrity and fatigue life of FeCoCrNiAl0.6 high-entropy alloy during machining. By combining cutting experiments, fatigue tensile test...
Fixed-Time Formation Hunting Control of Multi-Marine Surface Vehicle System Based on a Novel Deep REInforcement Learning
IEEE Transactions on Systems, Man, and Cybernetics: SystemsBai, Weiwei Wang, Yuanhao Zhao, Bo Chen, Dewang D'Ariano, Andrea  出版年:2026
In this article, a fixed-time deep rEInforcement learning (DRL) formation hunting control problem is investigated for a multi-marine surface vehicle (MSV) system. First, considering the lack of dynamic adaptability cause...
Investigation on the mechanism of micro-milling CoCrFeNiAlX high entropy alloys with end milling cutters
VACUUMZhang, Ping Wang, Shunxiang Lin, Zhenyong Yue, Xiujie Gao, Yeran Zhang, Songting Yang, Hongjuan  出版年:2023
This paper aims to explore the influence mechanism of different Al contents on the mechanism of CoCrFeNiAlX high entropy alloy micro-milling by studying CoCrFeNi (Al0), CoCrFeNiAl0.6 (Al0.6) and CoCrFeNiAl (Al1). The law...
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