Results 101 to 110 of about 166,022,580 (293)
Sub‐Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene
Advanced Materials, EarlyView.In self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Sathvik Ajay Iyengar +8 more
wiley +1 more source
Multi-scale analysis of the roughness effect on lubricated rough contact [PDF]
, 2014 Determining friction is as equally essential as determining the film thickness in the lubricated contact, and is an important research subject. Indeed, reduction of friction in the automotive industry is important for both the minimization of fuel ...
DEMIRCI, Ibrahim
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Research in Agricultural Engineering, 2012 The dynamic coefficient of friction of single potatoes was determined on mild steel, rubber and plastic, for tubers in each of four conditions: dry and dirty, wet and dirty, clean and wet and clean and dry.
C.F.H. Bishop +3 more
doaj +1 more source
Advanced Materials, EarlyView.Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son +20 more
wiley +1 more source
Methodology for qualifying a Friction Stir Welding equipment [PDF]
, 2008 The objective of this research work is the industrialization of the friction stir welding process in order to provide tools to industrials to select and qualify a machine for their FSW applications.
MARTIN, Patrick +5 more
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, 2014 In the present research, friction coefficients of gun metal sliding against different pin materials are investigated and compared. In order to do so, a pin-on-disc apparatus is designed and fabricated.
Roy, B. K. +6 more
core +2 more sources
Jixie chuandong, 2002 The friction coefficient of two additives and two industry gear lubricant were investigated in the four ball tester,static and dynamic friction coefficient were investigated in stationary dynamic friction coefficient test machine.
夏延秋 +5 more
doaj
Tailoring the Coefficient of Friction by Direct Laser Writing Surface Texturing. [PDF]
Micromachines (Basel), 2023 Gaudiuso C +4 more
europepmc +1 more source
Organic Materials of Tomorrow: Horizons of Artificial Intelligence
Advanced Materials, EarlyView.This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena +3 more
wiley +1 more source
Friction coefficient for center pivot systems
, 1995 An important objective of any center pivot irrigation system is to achieve a uniform distribution of water delivered through the sprinklers. In this study friction coefficients are developed for designing center pivot irrigation systems using two of the ...
Abo-Ghobar, Hossein M.
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