Results 171 to 180 of about 771,659 (382)
Superlubricious Surfaces Through Surface Attached Hydrogels Obtained by C,H‐insertion Crosslinking
Advanced Functional Materials, EarlyView.Taking synovial joints as a source of inspiration, the friction properties of surfaces covered with 1d‐swelling polyelectrolyte hydrogels in combination with a shear‐thinning aqueous lubricant are studied. Such systems obtained by C,H insertion crosslinking show superlubricious behavior, even surpassing the friction values reported for the natural ...
Renato Maraula +5 more
wiley +1 more source
Statistics of the structure components in S0s: implications for bar induced secular evolution
, 2013 The fractions and dimension of bars, rings and lenses are studied in the Near-IR S0 galaxy Survey (NIRS0S). We find evidence that multiple lenses in some barred S0s are related to bar resonances in a similar manner as the inner and outer rings, for which
Athanassoula, E. +5 more
core +3 more sources
Two Cases of Extraction from the Vitreous, of Steel Which Had Passed through the Lens [PDF]
, 1889 O. F. WADSWORTH
openalex +1 more source
Advanced Functional Materials, EarlyView.Emulating nature's unparalleled engineering, this work introduces butterfly‐inspired hybrid composites for high‐performance transportation and defense sectors. Leveraging biomimicry, these lightweight composites feature butterfly leg‐inspired hierarchical fibrous assemblies and butterfly wing‐inspired sandwich‐structured architecture, to achieve ...
Nello D. Sansone +7 more
wiley +1 more source
XXXIV. Note on prof. Anderson's “Focometry of lens-combinations” [PDF]
, 1917 Robert E. Baynes
openalex +1 more source
Vivid Structural Coloration in Transparent MXene‐Cellulose Nanocrystals Composite Films
Advanced Functional Materials, EarlyView.Vivid structural coloration in reflectance and high transparency in transmittance modes are observed in biopolymer‐layered composite films. The ultrathin multilayered structures have unique optical appearance, near‐infrared bandgap, and strong optical reflection caused by alternating MXene and cellulose nanocrystals layers with high refractive index ...
Botyo Dimitrov +12 more
wiley +1 more source
A low cost ""Air Mass 2'' solar simulator [PDF]
, 1974 Tungsten halogen projection lamps have integral ellipsoidal reflector, and hexagonal shaped plastic Fresnel lenses. Reflector is dichroic coated to reduce infrared content of reflected radiation. Array of lamps and lenses produces uniform collimated beam
Curtis, H. B. +2 more
core +1 more source
Multi‐Scaled Cellulosic Nanonetworks from Tunicates
Advanced Functional Materials, EarlyView.Microbial and plant nanonetworks of cellulose have enabled a wide range of high‐performance yet sustainable materials. Herein, a third class of cellulosic nanonetworks is showcased by exploiting the only animal tissue‐producing cellulose nanofibers, i.e., ascidians. An ultrastructure including spherical cells and a microvasculature with diameters of 50–
Mano Govindharaj +10 more
wiley +1 more source
, 2009 Short duration lensing events tend to be generated by low-mass lenses or by lenses with high transverse velocities. Furthermore, for any given lens mass and speed, events of short duration are preferentially caused by nearby lenses (mesolenses) that can ...
Abadi +35 more
core +1 more source
A large aperture aplanatic lens not corrected for colour [PDF]
, 1922 Travis A. Smith
openalex +1 more source