Results 61 to 70 of about 254,982 (332)

Spectroscopy of the Potential Profile in a Ballistic Quantum Constriction

open access: yes, 1994
We present a theory for the nonlinear current-voltage characteristics of a ballistic quantum constriction. Nonlinear features first develop because of above-barrier reflection from the potential profile, created by impurities in the vicinity of the ...
A. M. Zagoskin   +15 more
core   +1 more source

Constricted channel flow with different cross-section shapes [PDF]

open access: yes, 2017
Pressure driven steady flow through a uniform circular channel containing a constricted portion is a common problem considering physiological flows such as underlying human speech sound production. The influence of the constriction’s cross-section shape (
Gao, H.   +3 more
core   +3 more sources

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych   +7 more
wiley   +1 more source

Time-dependent and force-dependent vasoreactivity of isolated human umbilical arteries [PDF]

open access: yesScripta Medica, 2020
Background/Aim: There have been different experimental conditions for in vitro studies on human umbilical arteries (HUA) in tissue bath system. This diversity was mainly reflected in variables such as stretching tension, incubation period and initial ...
Đukanović Đorđe   +2 more
doaj  

Tuberculous constrictive pericarditis

open access: yesResearch in Cardiovascular Medicine, 2015
Constrictive pericarditis is characterized by constriction of the heart secondary to pericardial inflammation. Cardiovascular magnetic resonance (CMR) imaging is useful imaging modality for addressing the challenges of confirming this diagnosis. It can be used to exclude other causes of right heart failure, such as pulmonary hypertension or myocardial ...
Tse, Gary   +5 more
openaire   +7 more sources

Signatures of neutral quantum Hall modes in transport through low-density constrictions

open access: yes, 2008
Constrictions in fractional quantum Hall (FQH) systems not only facilitate backscattering between counter-propagating edge modes, but also may reduce the constriction filling fraction $\nu_c$ with respect to the bulk filling fraction $\nu_b$.
Halperin, Bertrand I., Rosenow, Bernd
core   +1 more source

Multimodal Characterization Method for Metamaterials with Tunable Mechanical Stiffness and Electrical Resistivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a multimodal characterization method for a prototype metamaterial model structure that features four distinct states of mechanical stiffness and electrical resistivity. Through simulations and experiments, it uncovers insights into the structural behavior, the correlation between changes in electrical resistivity and mechanical ...
Rebecca Kose   +3 more
wiley   +1 more source

Constricted Systems

open access: yesRocky Mountain Journal of Mathematics, 1991
Recent interest in the investigation of chaotic behavior of dynamic systems has led to a broad renewed interest in \(L_1\) Markov operators. The recent monograph of Lasota and Mackey gives a very readable introduction to the methods and applications of this approach to the randomness of deterministic processes.
openaire   +2 more sources

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Studies on Construction Technical System of Ecological Irrigation District in the Lower Yellow River Basin

open access: yesMATEC Web of Conferences, 2017
Under the background of global water crisis, the construction of ecological irrigation district has become the inevitable trend of the development of irrigation district and new rural construction.
Zhang Shuang, Pang Guibin
doaj   +1 more source

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