Results 111 to 120 of about 13,825,197 (293)

Tuning the mobility of a driven Bose-Einstein condensate via diabatic Floquet bands

, 2013
We study the response of ultracold atoms to a weak force in the presence of a temporally strongly modulated optical lattice potential. It is experimentally demonstrated that the strong ac-driving allows for a tailoring of the mobility of a dilute atomic ...
Alexey V. Ponomarev, C. Cohen-Tannoudji, C. Kittel, G. M. Zaslavsky, Martin Weitz, Peter Hänggi, R. Zwanzig, Sebastian Kling, Sergey Denisov, Tobias Salger   +9 more
core   +1 more source

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

Journal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown, Robert Clarke, Ali Akbari, Ferdian Jovan, Jameel Marafie, Ognjen Marjanovic, Sara Bernardini, Tom Richardson, Simon Watson   +8 more
wiley   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

Small, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal, Alexis Franquet, Hans Hofsäss, Tapobrata Som   +3 more
wiley   +1 more source

Understanding and Controlling Regime Switching in Molecular Diffusion

, 2014
Diffusion can be strongly affected by ballistic flights (long jumps) as well as long-lived sticking trajectories (long sticks). Using statistical inference techniques in the spirit of Granger causality, we investigate the appearance of long jumps and ...
de Wijn, A. S., Hallerberg, S.
core   +1 more source

Activatable smart contrast agents for photoacoustic imaging

Smart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh, Jihye Lee, Suyoung Park, Juyoung Yoon, Won Jong Kim, Chulhong Kim   +5 more
wiley   +1 more source

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Advances in Mechanical Engineering, 2015
The association of the failure behavior of the AZ31B magnesium alloy with absorption energy under ballistic impact condition was investigated in this study, as well as the effect of varying percentages of added lead (Pb) content.
Mohamad Faizal Abdullah, Shahrum Abdullah, Mohd Zaidi Omar, Zainuddin Sajuri, Risby Mohd Sohaimi   +4 more
doaj   +1 more source

Standard NIJ 0115.00 za testiranje otpornosti zaštitnih prsluka na ubode nožem i predmetima sa oštrim vrhom / NIJ 0115.00 standard for testing stab resistance of body armor

Vojnotehnički Glasnik, 2008
Standard NIJ 0115.00 (prema Nacionalnom institutu pravde SAD), namenjen je za utvrđivanje minimuma tehničkih zahteva i metoda ispitivanja otpornosti zaštitnih prsluka, koji treba da zaštite gornji deo tela od uboda nožem i predmetima sa oštrim vrhom ...
Đuro Jovanić
doaj   +1 more source

Ballistic missile defence: how soon, how significant, and what should Australia's policy be? [PDF]

Summary: The issue of ballistic missile defence (BMD) was a controversial one when US President Reagan first advocated a strategic-level system in the early 1980s. It remains so today. What’s Australia’s interest?
Andrew Davies, Rod Lyon
core  

Investigation of Dielectric and Thermal Properties of Mineral Oil‐Based Fe3O4‐Coated SiO2 Core‐Shell Nanofluids

High Voltage, EarlyView.
ABSTRACT This study investigates the dielectric and thermal properties of transformer oil‐based nanofluids incorporating Fe3O4‐coated SiO2 core–shell nanoparticles as nanofillers. The nanoparticles were synthesised with varying shell thicknesses, and two samples underwent surface treatment.
Mohamed H. Abdo, El‐Sayed M. El‐Refaie, Abd Elrahman S. Tawfic, Diaa‐Eldin A. Mansour   +3 more
wiley   +1 more source

Effect of short- and long-range scattering in the conductivity of graphene: Boltzmann approach vs tight-binding calculations

, 2010
We present a comparative study of the density dependence of the conductivity of graphene sheets calculated in the tight-binding (TB) Landauer approach and on the basis of the Boltzmann theory.
Klos, J. W., Zozoulenko, I. V.
core   +2 more sources