Results 101 to 110 of about 720 (203)
A physics primer on photon‐counting detectors in CT: Physics, signal formation, and performance
Abstract Photon‐counting detector CT (PCD‐CT) is moving from laboratory development to clinical deployment. However, its threshold‐bin data arise from a tightly coupled detector–readout chain that can be difficult to understand as a whole. These data are not a direct readout of photon energy, but the outcome of a sequence of physical and electronic ...
Guang‐Hong Chen, Ruiran Lai, Ke Li
wiley +1 more source
Modeling of Ammunition Dynamic Pressure Measurement Chain in Ballistic Tests. [PDF]
Felix CBC, Medeiros KAR, Barbosa CRH.
europepmc +1 more source
ON THE ISSUE OF ACCURACY OF THE SOLUTION OF THE DIRECT PROBLEM OF EXTERNAL BALLISTICS [PDF]
Stanislav Anatol'evich KOROLEV +2 more
openaire +1 more source
A new stopped‐flow instrument allows kinetic measurements of reactions 10 milliseconds after initiating them by mixing in a flow cell inserted into a standard NMR probe and spectrometer. High‐speed video, pressure and NMR line‐shape data are used to characterise mixing and stopping, and a protodeboronation reaction with a 5‐millisecond half‐life used ...
Andrew M. R. Hall +6 more
wiley +1 more source
The Evolution of Semiconductor Devices: From Transistors to Quantum and Neuromorphic Computing
This review presents the evolution of semiconductor devices from BJTs to fin field‐effect transistors (FinFETs), nanowire, and carbon nanotube transistors. It highlights emerging materials, including SiC and GaN, and examines neuromorphic and quantum computing, industry applications, performance benchmarks, challenges, and future directions.
Manoharan Subramanian +6 more
wiley +1 more source
Abstract Recent phylogenetic studies have called into question the present broad circumscription of Dorstenia (Moraceae), a genus of shrubs and herbs found largely in Africa and the Neotropics. This study presents an updated phylogenomic analysis of Dorstenia and allied genera, reviews the morphology of these taxa, and proposes a revised delimitation ...
Elliot M. Gardner +3 more
wiley +1 more source
MLP-residual surrogate model for aerodynamic prediction in projectile external flows. [PDF]
Xin S, Hao Y, Zhang J.
europepmc +1 more source
The “classical” problem of external ballistics and a “new” problem [PDF]
openaire +1 more source
Basins of Attraction and Escape in Pendulum‐Type Potentials with Quadratic Air Drag
ABSTRACT Quadratic air drag is a common dissipative mechanism at moderate to high velocities, yet in nonlinear one‐degree‐of‐freedom systems, it typically blocks closed‐form solutions and energy‐based phase‐plane partitions. We study the autonomous class ẍ+α(x)|ẋ|ẋ+β(x)sgn(ẋ)+V′(x)=0,$$\begin{equation*} \ddot{x}+\alpha (x)\,|\dot{x}|\,\dot{x}+\beta
Attila Genda +2 more
wiley +1 more source

