Results 171 to 180 of about 855,719 (327)

Near-field optical trapping in a non-conservative force field [PDF]

, 2019
Mohammad Asif Zaman, Punnag Padhy, Lambertus Hesselink   +2 more
openalex   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Optical bistability with a repulsive optical force in coupled silicon photonic crystal membranes

, 2013
Pui-Chuen Hui, David Woolf, Eiji Iwase, Young-Ik Sohn, Daniel Ramos, Mughees Khan, Alejandro W. Rodríguez, Steven G. Johnson, Federico Capasso, Marko Lončar   +9 more
openalex   +2 more sources

Trends in sulfate and organic aerosol mass in the Southeast U.S.: Impact on aerosol optical depth and radiative forcing [PDF]

, 2014
A. R. Attwood, R. A. Washenfelder, C. A. Brock, Weiwei Hu, Karsten Baumann, Pedro Campuzano‐Jost, Douglas A. Day, Eric S. Edgerton, Daniel M. Murphy, Brett B. Palm, Allison McComiskey, N. L. Wagner, Suzane S. de Sá, A. M. Ortega, Scot T. Martin, J. L. Jiménez, Steven S. Brown   +16 more
openalex   +1 more source

Optical Trapping Force on Two Types of Particles with a Focused Partially Coherent Lommel-Gaussian Beam

, 2021
Zuo Wen, Yashuai Han, Zheng-Lan Zhou, Hua-Feng Xu, Zhengxian Zhou, Jun Qu   +5 more
openalex   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy [PDF]

, 2010
Andreea Trache, Soon‐Mi Lim
openalex   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

Non-linear bistability in pulsed optical traps

Nanophotonics
Optical trapping, also known as optical tweezing or optical levitation, is a technique that uses highly focused laser beams to manipulate micro- and nanoscopic particles. In optical traps driven by high-energy pulses, material non-linearity can result in
Vernon Alex J., Rodríguez-Fotuño Francisco J., Zayats Anatoly V.   +2 more
doaj   +1 more source

A Positron Lifetime Study of Cooling and Natural Aging of Solutionized Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The process during cooling of Al–Mg and Al–Mg–Si alloys from the solutionizing temperature down to 20 °C is interrupted. These states are analyzed with positron lifetime spectroscopy to trace the processes during cooling. In different temperature ranges, two stages of vacancy loss and solute clustering are identified.
Zi Yang, Mengjie Li, John Banhart
wiley   +1 more source