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| 1 | Laser Spot Center Detection and Comparison Test显示文摘High efficiency and precision of the pot center detection are the foundations of avionics instrument navigation and optics measurement basis for many applications.It has noticeable impact on overall system performance.Among them,laser spot detection is very important in the optical measurement technology.In order to improve the low accuracy of the spot center position,the algorithm is improved on the basis of the circle fitting.The pretreatment is used by circle fitting,and the improved adaptive denoising filter for TV repair technology can effectively improves the accuracy of the spot center position.At the same time,the pretreatment and de-noising can effectively reduce the influence of Gaussian white noise,which enhances the anti-jamming capability. | Jun ZHU Zhengjie XU Deli FU Cong HU | 2019 | Photonic Sensors2019,9,1: | 6 |
| 2 | Hot deformation behavior of a Nb-containing 316LN stainless steel显示文摘 | Zhang Wenhui Sun Shuhua Zhao Deli Wang Baozhong Wang Zhenhua Fu Wantang | 2011 | Materials and Design2011,,8: | 1 |
| 3 | Effect of warm cross-wedge rolling on microstructure and mechanical property of high carbon steel rods显示文摘 | Yi Xiong Shuhua Sun Yong Li Jun Zhao Zhiqing Lv Deli Zhao Yangzeng Zheng Wantang Fu | 2006 | Materials Science & Engineering A2006,,1: | 1 |
| 4 | Ultra-high strength yet superplasticity in a hetero-grain-sized nanocrystalline Au nanowire显示文摘Nanocrystalline metals often display a high strength up to the gigapascal level,yet they suffer from poor plasticity.Previous studies have shown that the development of hetero-sized grains can efficiently overcome the strength-ductility trade-off of nanocrystalline metals.However,whether this strategy can lead to the fabrication of nanocrystalline nanowires exhibiting both high strength and superplasticity is unclear,similar to the atomistic deformation mechanism.In this paper,we show that ultra-small nanocrystalline Au nanowires comprising grains in both the Hall–Petch and inverse Hall–Petch grain-size regions can exhibit extremely high uniform elongation(236%)and high strength(2.34 gigapascals)at room temperature.In situ atomic-scale observations revealed that the plastic deformation underwent two stages.In the first stage,the super-elongation ability originated from the intergrain plasticity of small grains via mechanisms such as grain boundary migration and grain rotation.This intergrain plasticity caused the grains in the heterogeneous-structured nanowires to grow very large.In the second stage,the superelongation ability originated from intragrain plasticity accompanied by the diffusion of surface atoms.Our results show that the hetero-grain-sized nanocrystalline nanowires,comprising grains with sizes both in the strongest Hall–Petch effect region and the inverse Hall–Petch effect region,were simultaneously ultrastrong and ductile.They displayed neither a strength-ductility trade-off nor plastic instability. | Libo Fu Deli Kong Chengpeng Yang Jiao Teng Yan Lu Yizhong Guo Guo Yang Xin Yan Pan Liu Mingwei Chen Ze Zhang Lihua Wang Xiaodong Han | 2022 | Journal of Materials Science & Technology2022,,6: | 1 |
| 5 | Alfalfa as a supplement of dried cornstalk diets: Associative effects on intake, digestibility, nitrogen metabolisation, rumen environment and hematological parameters in sheep显示文摘 | Deli Wang Jian Fang Fu Xing Lianyu Yang | 2007 | Livestock Science2007,,1: | 1 |
| 6 | Dynamic modelling and engineering simulation of fluid mechanics in water injectors显示文摘To study the fluid dynamic response mechanism under the working condition of water injection well borehole,based on the microelement analysis of fluid mechanics and the classical theory of hydrodynamics,a fluid microelement pressure-flow rate relationship model is built to derive and solve the dynamic distribution of fluid pressure and flow rate in the space of well borehole.Combined with the production data of a typical deviated well in China,numerical simulations and analyses are carried out to analyze the dynamic distribution of wellbore pressure at different injection pressures and injection volumes,the delayed and attenuated characteristics of fluid transmission in tube,and the dynamic distribution of wellbore pressure amplitude under the fluctuation of wellhead pressure.The pressure loss along the wellbore has nothing to do with the absolute pressure,and the design of the coding and decoding scheme for wave code communication doesn’t need to consider the absolute pressure during injecting.When the injection pressure is constant,the higher the injection flow rate at the wellhead,the larger the pressure loss along the wellbore.The fluid wave signal delay amplitude mainly depends on the length of the wellbore.The smaller the tubing diameter,the larger the fluid wave signal attenuation amplitude.The higher the target wave code amplitude(differential pressure identification root mean square)generated at the same well depth,the greater the wellhead pressure wave amplitude required to overcome the wellbore pressure loss. | JIA Deli WEN Haoyang SUN Fuchao WANG Quanbin YANG Qinghai FU Tao | 2023 | Petroleum Exploration and Development2023,50,5: | 0 |
| 7 | Comments on the development of blockchain technology from the perspective of patent analysis显示文摘Blockchain is a new application mode of distributed data storage with point-to-point transmission,consensus mechanism,encryption algorithm and other computer technologies.In particular,blockchain is a kind of chained data structure that combines data blocks in sequence in accordance with time and an unchangeable and unforgeable distributed ledger that is ensured by cryptography.It utilizes distributed node consensus to generate and update data and cryptography to secure data transmission and access(Yang,2017).The characteristics of blockchain include decentralization,openness,independence,security,and anonymity.Blockchain is widely used in trading securities,e-commerce,Internet of Things,social media,file storage,authentication,stock crowdfunding,and many other fields because of its core technologies. | Wenhong LI Chunxiao FU Deli CHENG | 2020 | Frontiers of Engineering Management2020,7,4: | 0 |