Results 111 to 120 of about 709,669 (342)
Physical Review D, 2011 We present a family of dynamic rotating cylindrically symmetric Ricci-flat gravitational fields whose geodesic motions have the structure of gravitomagnetic jets. These correspond to helical motions of free test particles up and down parallel to the axis of cylindrical symmetry and are reminiscent of the motion of test charges in a magnetic field.
Chicone, Carmen Charles +1 more
openaire +3 more sources
Linking Heat Treatment to Plastic Deformation in Pearlitic Steels Through Mesoscale Modeling
Advanced Engineering Materials, EarlyView.Surface wear on rail and wheel steels results from surface deformation during use. This research uses mathematical models to forecast the plastic behavior of pearlitic steels, connected to the microstructure formed during heat treatment. While the cooling rate impacts the steels’ strength, the size of prior austenite grains and blocks does not ...
Saham Sadat Sharifi +5 more
wiley +1 more source
Quantification of the Jet Function of a Jet Stylet
Anesthesia & Analgesia, 1991 The concept and use of a jet stylet as an additional safety measure during tracheal extubation of patients in whom subsequent ventilation and/or reintubation of the trachea may be difficult has recently been described. If jet ventilation through a jet stylet could provide for effective gas exchange, it would allow additional time to assess the need for
George T. Ozaki +2 more
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Natural Lagrangians for quantum structures over 4-dimensional space-time [PDF]
Rendiconti di Matematica e delle Sue Applicazioni, 1998 The natural quantum Lagrangians which appear in Einstein general relativistic quantum mechanics are classified by using methods of gauge-natural bundles and natural operators.
J. Janyska
doaj
Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity
Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir +8 more
wiley +1 more source
Jet reconstruction and jet properties at HERA
Zeitschrift für Physik C Particles and Fields, 1988 We discuss jet reconstruction methods with respect to their suitability forep collisions at HERA and study the expected properties of such jets. The results are based on complete event simulation using current models of jet evolution and hadronization in combination with experimentally tested jet algorithms.
Burrows, P. N., Ingelman, G., Ros, E.
openaire +4 more sources
Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
wiley +1 more source
Časopis pro pěstování matematiky, 1986 Let M,N be manifolds, \(x\in M\), \(y\in N\), let \(T_ k\) be the kth iteration of the tangent functor T, let \(p^ M_ j: T(T_{j-1}M)\to T_{j-1}M\) be the tangent bundle of \(T_{j-1}M\). A mapping \(\phi\) : (T\({}_ rM)_ x\to (T_ rN)_ y\) is called a quasijet of order r with target y and source x if the induced mappings between the canonical vector ...
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Advanced Functional Materials, EarlyView.Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana +2 more
wiley +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source