Results 31 to 40 of about 21,912,576 (328)

Controlling Electromagnetic Fields [PDF]

open access: yesScience, 2006
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D, magnetic induction field B, and Poynting vector B—are ...
J. Pendry, D. Schurig, David R. Smith
semanticscholar   +1 more source

Virtual fences for controlling cows [PDF]

open access: yes, 2004
We describe a moving virtual fence algorithm for herding cows. Each animal in the herd is given a smart collar consisting of a GPS, PDA, wireless networking and a sound amplifier. Using the GPS, the animal's location can be verified relative to the fence
Butler, Zack   +3 more
core   +3 more sources

Efficiently controlling for case-control imbalance and sample relatedness in large-scale genetic association studies

open access: yesNature Genetics, 2017
In genome-wide association studies (GWAS) for thousands of phenotypes in large biobanks, most binary traits have substantially fewer cases than controls.
W. Zhou   +18 more
semanticscholar   +1 more source

Controlling Physical Systems with Symmetries [PDF]

open access: yes, 1997
Symmetry properties of the evolution equation and the state to be controlled are shown to determine the basic features of the linear control of unstable orbits. In particular, the selection of control parameters and their minimal number are determined by
E. Barreto   +10 more
core   +2 more sources

Experimental Research on the Impactive Dynamic Effect of Gas-Pulverized Coal of Coal and Gas Outburst

open access: yesEnergies, 2018
Coal and gas outburst is one of the major serious natural disasters during underground coal, and the shock air flow produced by outburst has a huge threat on the mine safety. In order to study the two-phase flow of a mixture of pulverized coal and gas of
Haitao Sun   +7 more
doaj   +1 more source

Controlled Cyclophotocoagulation [PDF]

open access: yesDer Ophthalmologe, 1998
In the past, the main problem of transscleral cyclophotocoagulation was related to the energy dosage of the individual effect. Since the target tissue is not directly observable, no information about the coagulation process was available to the surgeon.
openaire   +4 more sources

Field application of nanoliposomes delivered quercetin by inhibiting specific hsp70 gene expression against plant virus disease

open access: yesJournal of Nanobiotechnology, 2022
Background The annual economic loss caused by plant viruses exceeds 10 billion dollars due to the lack of ideal control measures. Quercetin is a flavonol compound that exerts a control effect on plant virus diseases, but its poor solubility and stability
Jie Wang   +6 more
doaj   +1 more source

Controlling magnetic order and quantum disorder in molecule-based magnets [PDF]

open access: yes, 2014
We investigate the structural and magnetic properties of two molecule-based magnets synthesized from the same starting components. Their different structural motifs promote contrasting exchange pathways and consequently lead to markedly different ...
Baines, C.   +22 more
core   +1 more source

A Workspace Visualization Method for a Multijoint Industrial Robot Based on the 3D-Printing Layering Concept

open access: yesApplied Sciences, 2020
The workspace of a robot provides the necessary constraint information for path planning and reliable control of the robot. In this paper, a workspace visualization method for a multijoint industrial robot is proposed to obtain a detailed workspace by ...
Guoqiang Fu   +5 more
doaj   +1 more source

Ownership and control in a competitive industry [PDF]

open access: yes, 2010
We study a differentiated product market in which an investor initially owns a controlling stake in one of two competing firms and may acquire a non-controlling or a controlling stake in a competitor, either directly using her own assets, or indirectly ...
A. Grosso   +80 more
core   +2 more sources

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