Results 91 to 100 of about 1,174,303 (339)

Structural Colors from Ultrathin Lignin Films

Advanced Optical Materials, EarlyView.
Thickness‐dependent structural colors in ultrathin lignin films generate a full visible palette, tuned simply by solution concentration and spin speed. Abstract Structural colors offer a sustainable alternative to toxic pigments and dyes, yet their realization from lignin, the most abundant aromatic biopolymer, has remained elusive.
Bang An, Anran Mao, Torbjörn Pettersson, Wei Li, Shouxin Liu, Anna J. Svagan, Ravi Shanker   +6 more
wiley   +1 more source

Observer-Based Fuzzy Tracking Control for an Unmanned Aerial Vehicle With Communication Constraints

IEEE transactions on fuzzy systems
In this article, we investigate the trajectory tracking problem of underactuated aerial vehicles with unknown mass in the presence of unknown nonvanishing disturbances using an event-triggered approach, while considering the constraint that the ...
Linghuan Kong, Zhijie Liu, Zhijia Zhao, H. Lam   +3 more
semanticscholar   +1 more source

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

Advanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini   +9 more
wiley   +1 more source

Mobilizing Public Will For Social Change [PDF]

, 2003
Examines the theory and strategies of "public will" campaigns and offers tangible criteria for their evaluation. It provides a rich inventory of strategies for use in mobilizing the public will through an integration of models of agenda building, social ...
Charles T. Salmon, L. A. Post, Robin E. Christensen   +2 more
core  

Circularly Polarized Structural Color Pigments Tunable Across the Full Visible Spectrum

Advanced Optical Materials, EarlyView.
By infusing black dye into spherical shells of polymerized cholesteric liquid crystal, blue, green and red omnidirectional retroreflectors of circularly polarized structural color are achieved. They can be laid out on arbitrary surfaces without any need for index matching binder to define graphical information for robots and Augmented Reality devices ...
Deniz Işınsu Avşar, Jan P. F. Lagerwall   +1 more
wiley   +1 more source

The Communication of Local Public Authorities with Mass-Media. Effects and Best Practices

Transylvanian Review of Administrative Sciences, 2011
The communication processes public administration is involved in (as part of communication relations) should always accompany administrative action in its efforts to achieve its mission and objectives, namely the public needs.
Ana Elena RANTA
doaj  

Experience American science of communication for Ukraine in the field of information democracy

Американська історія і політика, 2016
In the article the scientific exploration of American experts communication. Determined that communication integrates research and development experts in sociology, political science, art, ethnology, journalism, law, philosophy, psychology and others ...
Mytko Antonina
doaj   +1 more source