PARALLELOGRAM

作品数：20被引量：28H指数：2
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相关领域：理学更多>>
相关作者：彭道刚更多>>
相关机构：宝山钢铁股份有限公司上海电力大学更多>>
相关期刊：《Applied Mathematics》《Frontiers of Mechanical Engineering》《Science China(Physics,Mechanics & Astronomy)》《Science China(Technological Sciences)》更多>>
相关基金：国家自然科学基金国家高技术研究发展计划更多>>
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Parallelogram 3d-4f-5d heterometallic clusters based on trilacunary tungstoantimonates with excellent proton conductivity
《Chinese Chemical Letters》2024年第3期528-531,共4页Haiying Wang Han Xu Chaolong Chen Yingjie Zhu Yikang Zhang Dongdi Zhang Jingyang Niu 
supported by the National Natural Science Foundation of China(No.22071045);the Excellent Youth Science Fund Project of Henan Province(No.202300410042);the Natural Science Foundation of Henan Province(No.232300420372);Henan University;the State Key Laboratory of Physical Chemistry of the Solid Surface of Xiamen University。
Two 3d-4f-5d heterometallic cluster-containing polyoxometalates,formulated as Na_(22){(SbW_(9)O_(33))_(4)[La_(3)W_(6)MO_(18)(H_(2)O)_(8)(CH_(3)COO)_(4)]_(2)}·nH_(2)O(abbreviated as La_(6)M_(2),M=Co/Mn)were synthesize...
关键词：POLYOXOMETALATE PARALLELOGRAM HETEROMETALLIC 3d-4f-5d cluster Proton conductivity 
From rectangle to parallelogram:an area-weighted method to make time-space diagrams incorporate traffic waves
《Digital Transportation and Safety》2024年第1期1-7,共7页Ning Wang Xingye Wang Hai Yan Zhengbing He 
National Natural Science Foundation of China(71871010).
A time-space(TS)traffic diagram is one of the most important tools for traffic visualization and analysis.Recently,it has been empirically shown that using parallelogram cells to construct a TS diagram outperforms usi...
关键词：Spatiotemporal speed contour diagram Vehicle trajectory Traffic wave Traffic state 
Design and Experiments of a Human-Leg-Inspired Omnidirectional Robotic Leg被引量：1
《Journal of Bionic Engineering》2023年第6期2570-2589,共20页Yuze Xu Zirong Luo Xiangjuan Bai Huixiang Xie Yiming Zhu Shanjun Chen Jianzhong Shang 
This work was supported by the National Natural Science Foundation of China(NO.52175069).
Bionic-based robotic legs enable the legged robots with elegant and agile mobility in multi-terrain environment,just like natural living beings.And the smart design could efficiently improve the performance of a robot...
关键词：Human leg Robotic leg Omnidirectional legged locomotion Spatial dual-parallelogram-linkages Spatial closed-loop four-bar 
A three-band perfect absorber based on a parallelogram metamaterial slab with monolayer MoS_(2)
《Chinese Physics B》2023年第3期280-285,共6页张雯婧 刘青松 程波 晁明豪 徐云 宋国峰 
the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB43010000);the National Natural Science Foundation of China(Grant Nos.61835011 and 12075244);Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(Grant No.QYZDY-SSW-JSC004);the National Key Research and Development Program of China(Grant No.2020YFB2206103).
As a two-dimensional(2D)material,monolayer MoS2which limits its optical applications has a low absorption efficiency.In this paper,we propose a three-band perfect metamaterial absorber in the visible light range based...
关键词：METAMATERIAL perfect absorber monolayer MoS_(2) high-order diffraction 
Proposal for Offshore Wind Farm with Triangle-Coupled Movable Parallelogram Buoyancy Structure for the High Seas被引量：1
《Journal of Energy and Power Engineering》2022年第3期126-145,共20页Tatsuhiko Nagata 
We are responsible for providing energy and food resources for our next generation.After more than 20 years of research,the author has confirmed that the VAWT with flip-up mechanism can maintain rotation without the b...
关键词：Energy and food resources for our grandchildren and following generations deeper than 200 m offshore triangle-coupled movable parallelogram buoyancy structure VAWT with flip-up mechanism HAWT high seas. 
Crack Quantification of Bolted Joints by Using a Parallelogram Eddy Current Array Sensing Film被引量：1
《Transactions of Nanjing University of Aeronautics and Astronautics》2022年第1期98-107,共10页SUN Hu ZHANG Yiming YI Junyan WANG Yishou QING Xinlin 
supported by the Natural Science Foundation of China(No.11902280);Aeronautical Science Fund(No.20200033068001);Innovation Fosundation for Young Scholar of Xiamen(No.3502Z20206042);the Fundamental Research Funds for the Central Universities(No.20720210049)。
Crack monitoring at the bolt hole edge is one of the important focuses of aircraft structural health monitoring.In this study,a novel eddy current sensing film based on a parallelogram coil array is developed to quant...
关键词：bolted joints flexible eddy current sensing film parallelogram coil array structural health monitoring 
Higher Order Strongly Biconvex Functions and Biequilibrium Problems
《Advances in Linear Algebra & Matrix Theory》2021年第2期31-53,共23页Muhammad Aslam Noor Khalida Inayat Noor 
In this paper, we introduce and study some new classes of biconvex functions with respect to an arbitrary function and a bifunction, which are called the higher order strongly biconvex functions. These functions are n...
关键词：Biconvex Functions Convex Functions kβ-Convex Functions kβ-Convex Sets Parallelogram Laws Biequilibrium Problems Bivariational Inequalities Iterative Methods Convergence Analysis 
An experimental investigation of the fracturing behaviour of rock-like materials containing two V-shaped parallelogram flaws被引量：10
《International Journal of Mining Science and Technology》2020年第6期777-783,共7页Jinjin Tian Dongjing Xu Tianhao Liu 
The distribution characteristics and evolution law of rock mass fissures induced by mining are a key scientific issue in the study of deep rock mechanics.In this study,a series of uniaxial compression experiments was ...
关键词：V-shaped fissure Fracturing process Overburden strata Coal mining 
Three-dimensional analysis of natural convection in nanofluid-filled parallelogrammic enclosure opened from top and heated with square heater被引量：1
《Journal of Central South University》2019年第5期1077-1088,共12页Abdullah A.A.A AL-RASHED Walid HASSEN Lioua KOLSI Hakan F. OZTOP Ali J. CHAMKHA Nidal ABU-HAMDEH 
A numerical study based on the finite volume method has been performed to study the three-dimension natural convection in a parallelogrammic top side opened cavity filled nanofluid with partially heated square at the ...
关键词：3D analysis open enclosure partial heating PARALLELOGRAM nanofluids 
An Upper Limb Exoskeleton Design for Reduced Gravity Training of Astronauts
《Transactions of Nanjing University of Aeronautics and Astronautics》2018年第S1期27-34,共8页Jiang Yifan Qiao Bing 
sponsored by the Foundation of Graduate Innovation Center in NUAA(No.kfjj20161502);the Regulation of Ministry of Education of the People’s Republic of China;supported by"the Fundamental Research Funds for the Central Universities"
A wearable passive exoskeleton is proposed for reduced gravity astronauts training.The main component unit of the proposed robotic exoskeleton is the spring-based parallelogram mechanism which can passively balance an...
关键词：GRAVITY COMPENSATION passive EXOSKELETON reduced GRAVITY simulation SPRING PARALLELOGRAM 
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