Results 101 to 110 of about 7,636 (305)
2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C
Advanced Functional Materials, EarlyView.A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li +8 more
wiley +1 more source
P-41 Involute and Evolute Submanifolds
, 2018 The idea of involute is due to C. Huygens (1658) and he is known for his work in optics also. He found involutes while trying to build a more accurate clock. Now, the involute and evolute is a well-known concept to study space curves in.
Oh, Yun
core
Research on Meshing Theory of Involute Helical Gear with Asymmetric
, 2011 This paper analyzes the relationship between cutter parameters and gear profile parameters on the basis of rack cutter with asymmetric, and proves the new type gear can be manufactured by traditional methods.
Wei Li, Ning Li
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Jixie chuandong, 2019 To obtain more accurate dynamics change law for asymmetric involute gear， dynamics model of asymmetric involute gear is established by introducing time-varying stiffness and gear backlash.
Qi Chen +3 more
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Advanced Functional Materials, EarlyView.Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho +13 more
wiley +1 more source
, 2011 Industrial robots with middle or high loads are currently driven by gearboxes with cycloidal shaped gear toothing. The Gear Research Center (FZG) of the Technische Universität München analyzed in a project founded by the Bayerische Forschungsstiftung, if
H. Bauhoffer +3 more
core +1 more source
Jixie chuandong, 2002 Studied the method of 3D modeling for involute cylindrical gear, based on the design theory of property, this paper advanced a kind of theory of 3D modeling about the parts of gear, according to the structure property for involute cylindrical gear. Using
吴鲁纪, 常克勤
doaj
Advanced Functional Materials, EarlyView.We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim +4 more
wiley +1 more source
A Rack-Cutter Surface used to Generate a Spherical Gear with Discrete Ring-Involute Teeth
, 2014 [[abstract]]A spherical gear is a mechanism for transferring motion. This type of gear has more than one direction of freedom, so it is very suitable for a flexible robot wrist. In general, spherical gear mechanisms have two degrees of freedom.
Yang, Shyue-Cheng
core
基于Pro/E的非对称渐开线斜齿圆柱齿轮参数化设计及应力分析
Jixie chuandong, 2012 Helical gear with asymmetric involute is a new type of gear,and it hadn’t been studied in detail.According to gear generating method,curve sections on rack cutter are connected with curve section on helical gear.The equations of involute and fillet curve
李宁, 刘宁, 李威
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