SPACING

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Optimizing canopy-spacing configuration increases soybean yield under high planting density
《The Crop Journal》2025年第1期233-245,共13页Ruidong Li Cailong Xu Zongsheng Wu Yifan Xu Shi Sun Wenwen Song Cunxiang Wu 
supported by the Biological Breeding-National Science and Technology Major Project(2023ZD0403305);National Natural Science Foundation of China(32101845);the National Key Research and Development Program of China(2023YFE0105000);the China Agriculture Research System(CARS-04).
Dense cropping increases crop yield but intensifies resource competition,which reduces single plant yield and limits potential yield growth.Optimizing canopy spacing could enhance resource utilization,support crop mor...
关键词：Soybean Planting density Row-spacing configuration Canopy transmittance Yield 
Evaluating the effects of subsoiler type and spacing on tillage resistance and soil conservation with DEM simulation and field experiment
《International Journal of Agricultural and Biological Engineering》2025年第1期115-123,共9页Yueming Wang Chenjie Lu Jiajun Fan Xu Zhang Kai Chen Jing Chen Xiaoguang Li 
supported by Zhejiang Provincial Natural Science Foundation of China(Grant No.LQ23E050007);Huzhou Key Research and Development Project(Grant No.2022ZD2068);Huzhou Science and Technology Special Commissioner Project(Grant No.2023KT75);National Key R&D Program of China(Grant No.2022YFD1500600).
Multi-subsoiler collaboration plays a significant role in improving the efficiency of subsoiling.High tillage resistance during subsoiling seriously affects consumption,and the excessive soil disturbance may result in...
关键词：SUBSOILER space arrangement mechanism analysis tillage resistance soil disturbance 
Effect of Railway Spacing on Aerodynamic Performance of 600 km/h Maglev Trains Passing Each Other
《Fluid Dynamics & Materials Processing》2025年第2期371-385,共15页Bailong Sun Tian Li Deng Qin Yan Li 
supported by the National Natural Science Foundation of China(12372049);Fundamental Research Funds for the Central Universities(2682023ZTPY036);Research and Development Project of JDD For HTS Maglev Transportation System(JDDKYCF2024002).
High-speed maglev trains(HSMTs)can run at high running speeds due to their unique design.The pressure waves that these trains generate while passing each other are therefore very intense,and can even have safety impli...
关键词：Railway spacing maglev train aerodynamic numerical simulation two trains passing each other 
Evolution from the Kondo phase to the RKKY phase in the small impurity spacing regime of the two-impurity Anderson model
《Chinese Physics B》2025年第2期97-109,共13页Hou-Min Du Yu-Liang Liu 
Project supported by the National Natural Science Foundation of China (Grant No. 11974420)。
Understanding the quantum critical phenomena is one of the most important and challenging tasks in condensed matter physics and the two-impurity Anderson model(TIAM) is a good starting point for this exploration. To t...
关键词：multiple-point correlation function soft cut-off approximation Kondo resonance splitting RKKY interaction 
An experimental study of noise generated by tandem blades
《Chinese Journal of Aeronautics》2025年第2期143-160,共18页Xiaolong TANG Fan TONG Chao WANG Jue DING Guangming LI Xiaoquan YANG 
supported by grants from the National Natural Science Foundation of China(Nos.12102451,12072186);the National Science and Technology Major Project,China(No.J2019-II-0006-0026);AVIC Aerodynamics Research Institute,China(No.XFX20220201).
To facilitate the low-noise design of tandem lift bodies as applied in aeroengines and aircraft,the acoustic features of tandem blades are investigated by wind-tunnel experiments.This is further specialized for the ro...
关键词：Tandem blades Contra-rotating open rotor Noise BEAMFORMING Blade spacing and clipping Wind tunnel test 
Significant improvement of machinability of C_(f)/SiC composites through matching laser scanning spacing and abrasive belt grain size
《Chinese Journal of Aeronautics》2025年第1期185-201,共17页Guijian XIAO Zhengyu YANG Kun ZHOU Yi HE Xin LI 
co-supported by the National Natural Science Foundation of China(No.52205444);the Natural Science Foundation of Chongqing(No.CSTB2022NSCQMSX1128)。
To improve the application and service of C_(f)/SiC composites as advanced hightemperature structural materials,it is critical to achieve their high-efficiency and low-damage machining.In this study,the laser-ablating...
关键词：Ceramic matrix composites Laser ablating GRINDING Material removal Fracture damage 
Mechanically reconfigurable terahertz polarization converter by coupling-mediated metasurfaces
《Chinese Optics Letters》2024年第12期113-119,共7页Zhibo Yao Zhaohua Xu Xiaoyuan Hao Jiajun He Yanfeng Zhao Xiangyu Liu Yanfeng Li Xueqian Zhang Quan Xu Su Xu Jiaguang Han 
supported by the National Natural Science Foundation of China(Nos.61935015,62375203,62335011,62075158,62025504,62175083);the Yunnan Expert Workstation(No.202205AF150008);the Independent Innovation Fund of Tianjin University(No.2024XPD-0012);the NaturalScienceFoundationofJilinProvince(No.20230101359JC);the Fundamental Research Funds for Central Universities。
Free manipulation of electromagnetic waves in the terahertz(THz)band based on metasurface functional devices has been the focus of research in recent years.Among these devices,active metasurfaces have generated extens...
关键词：mechanically reconfigurable THz metasurface polarization converter tunable spacing vector network analyzer 
Unlock the Potentials of Large-Element-Spacing Arrays:A Meta-Lens Solution for Grating-Lobe Suppression and Gain Enhancement
《Electromagnetic Science》2024年第4期35-49,共15页Zhengmei Wang Shan Lin Yuehe Ge Zhizhang(David)Chen Jingjing Zhao Jiahong Chen Ziheng Zhou Trevor S.Bird 
National Natural Science Foundation of China(Grant Nos.62071187,62071125,and 62301162);Natural Science Foundation of Fujian Province,China(Grant No.2023J01058);Industry-Education Cooperation Project in Fujian Province,China(Grant No.2022H6018);Fujian Province Major Special Topic Project(Grant No.2022HZ026007).
Large-element-spacing(LES)antenna arrays present an attractive proposition with their cost-effectiveness and sim-plified structures.However,they often encounter the challenge of high-level grating lobes.This paper pro...
关键词：Gain enhancement Grating-lobe suppression Large-element-spacing antenna array Meta-lens Metasurface Sparse array Thinned array 
Low cross-talk optical addressing of trapped-ion qubits using a novel integrated photonic chip
《Light(Science & Applications)》2024年第10期2179-2191,共13页Ana S.Sotirova Bangshan Sun Jamie D.Leppard Andong Wang Mohan Wang Andres Vazquez-Brennan David P.Nadlinger Simon Moser Alexander Jesacher Chao He Fabian Pokorny Martin J.Booth Christopher J.Ballance 
supported by a UKRI FL Fellowship(MR/S03238X/1);the US Army Research Office(W911NF-20-1-0038);the UK EPSRC Hub in Quantum Computing and Simulation(EP/T001062/1);EPSRC Fellowship(EP/T00326X/1);Marie Curie Fellowship UKRI guarantee(EP/X024296/1);Austrian Science Fund(13984-N36).C.H.acknowledges St.John's College,Oxford for support through a Junior Research Fellowship.D.P.N.thanks Merton College,Oxford for the same.A.S.S.acknowledges funding from the JT Hamilton scholarship from Balliol College,Oxford.
Individual optical addressing in chains of trapped atomic ions requires the generation of many small,closely spaced beams with low cross-talk.Furthermore,implementing parallel operations necessitates phase,frequency,a...
关键词：SPACING cross OPTICAL 
High-throughput analysis of maize azimuth and spacing from Lidar data
《International Journal of Agricultural and Biological Engineering》2024年第5期105-111,F0002,共8页Zilong Wang Yiming Zhang Liqing Chen Delin Wu Yuwei Wang Lu Liu 
supported by the Natural Science Research Project for Anhui Universities(Grant No.2023AH040140).
Efficient leaf azimuth angles and plant spacing are crucial for enhancing light interception efficiency in maize,thereby increasing yield per unit area.Traditional methods for measuring these traits are labor-intensiv...
关键词：LIDAR maize azimuth angle 3D point cloud principal component analysis 
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