Results 31 to 40 of about 2,045,675 (275)

Shape‐Changing Multiphase Microparticles from Complex Liquid Crystal Emulsions

open access: yesAdvanced Functional Materials, EarlyView.
Liquid crystalline network (LCN) microparticles are prepared from single, double (Janus), and triple emulsions through a simple and scalable bulk‐emulsification strategy. Under heating, the particles exhibit robust, reversible, large‐amplitude deformations that depend both on the morphology and the liquid crystals director field configuration.
Marco Turriani   +3 more
wiley   +1 more source

Fluid lubricant system Patent [PDF]

open access: yes, 1968
Lubrication for bearings by capillary action from oil reservoir of porous ...
Belanger, R. J., Heindl, J. C.
core   +1 more source

Optoelectronic Control of Redox Dynamics in POM Memristors for Noise‐Resilient Speech and Hardware‐Level Motion Recognition

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic control of redox‐active polyoxometalate clusters in polymer matrices yields hybrid memristors with switchable volatile and non‐volatile modes, enabling reservoir‐type in‐sensor optical preprocessing and stable multilevel synapses for multimodal neuromorphic computing, including noise‐tolerant audiovisual keyword recognition and hardware ...
Xiangyu Ma   +13 more
wiley   +1 more source

Más allá de lo cuantificable: la materia arquitectónica desde la reciprocidad, elaboración y memoria

open access: yes[i2]: Investigación e Innovación en Arquitectura y Territorio
Durante años, el discurso sobre la gestión de los recursos materiales en la arquitectura se ha centrado mayoritariamente en indicadores cuantitativos como la huella de carbono.
Maddi Manterola Ubillos
doaj   +1 more source

El espacio y la materia en el conocimiento metafísico

open access: yesTópicos, 2013
To show how metaphysics may come to know objects without matter, space or time, the author contrasts the Aristotelian notion of space, as the real distance between two material objects, against Kantian space, conceived as geometrical and uniform.
Carlos Llano
doaj   +1 more source

Miniature vibration isolator Patent [PDF]

open access: yes, 1965
Miniature vibration isolator utilizing elastic tubing ...
Butler, D. H., Falk, W. C.
core   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

What emotions do primary education students experience in the subject of nature sciences? Analysis of the block: "materia y energía"

open access: yesINFAD, 2018
There are many contexts in which emotions, and the intelligent use of them, are necessary for the integral development of the person. But without a doubt, and in relation to the field in which we find ourselves, emotional competences play a very ...
Irene Del Rosal, Maria Luisa Bermejo
doaj   +1 more source

Ablative resin Patent [PDF]

open access: yes, 1970
Ablative resins used for retarding regression in ablative ...
Burns, E. A.   +2 more
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

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