Results 71 to 80 of about 382,423 (270)

Small ball probabilities for smooth Gaussian fields and tensor products of compact operators [PDF]

open access: yesMathematische Nachrichten, 2013
We find the logarithmic L2‐small ball asymptotics for a class of zero mean Gaussian fields with covariances having the structure of “tensor product”. The main condition imposed on marginal covariances is slow growth at the origin of counting functions of their eigenvalues. That is valid for Gaussian functions with smooth covariances.
Karol', Andrei I., Nazarov, Alexander I.
openaire   +2 more sources

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

Understanding and Circumventing Failure Mechanisms in Chalcogenide Optical Phase Change Material Ge2Sb2Se4Te

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Chalcogenide optical PCMs have gathered interest for their potential in compact, non‐volatile optics and photonics. Free‐space PCM metasurfaces require new considerations from phase change memory that need to be addressed for reliable scale‐up. Several failure mechanisms pertaining to free‐space PCM devices and layout methods are isolated to prevent ...
Cosmin Constantin Popescu   +19 more
wiley   +1 more source

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

open access: yesAdvanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince   +3 more
wiley   +1 more source

Identifying Hazardous Conditions for Rapid Compression Scenarios of Chemically Unstable Gases in Industrial Scaled Pipes

open access: yesChemical Engineering Transactions, 2016
The polymeric industry handles Tetrafluoroethylene (TFE) as basic material for polymer (PTFE) and co- polymer (PCTFE) production. As a chemically unstable gas, it can react in an explosive way, without the presence of any other gases. Once initiated such
Martin Kluge   +3 more
doaj   +1 more source

Unequal dimensional small balls and quantization on Grassmann Manifolds

open access: yes, 2007
The Grassmann manifold G_{n,p}(L) is the set of all p-dimensional planes (through the origin) in the n-dimensional Euclidean space L^{n}, where L is either R or C.
Dai, Wei, Liu, Youjian, Rider, Brian
core   +2 more sources

Adenylyl Cyclase 8 in Dorsal CA1 Neurons Prevents Depressive‐Like Behaviors by Maintaining Neuronal Excitability and Glutamatergic Neurotransmission Through TIP39‐PTH2R Signaling

open access: yesAdvanced Science, EarlyView.
Depression, a prevalent neuropsychiatric disorder with unclear pathogenesis, involves dysfunctional adenylyl cyclase 8 (Adcy8) as a key risk factor. Chronic stress selectively reduces Adcy8 expression in the dorsal CA1 (dCA1) neurons. Depletion of Adcy8 in dCA1 excitatory neurons induces depressive‐like behaviors by impairing neuronal excitability and ...
Zi‐Jie Liu   +14 more
wiley   +1 more source

Spectral methods in quantum field theory and quantum cosmology

open access: yes, 2012
We review the application of the spectral zeta-function to the 1- loop properties of quantum field theories on manifolds with boundary, with emphasis on Euclidean quantum gravity and quantum cosmology.
Esposito, Giampiero   +3 more
core   +1 more source

Unraveling the Morphological and Functional Maturation Mechanisms Underlying Human Neural Development Using iPSCs‐Derived Neuronal Model

open access: yesAdvanced Science, EarlyView.
Using human induced pluripotent stem cells (hiPSCs)‐derived neuronal model, Tian and colleagues reveal that voltage‐gated calcium channels Cav1.2 and Cav1.3, and their mediated calcium ion influx, are essential for early morphogenesis of human neuronal development, while ECEL1 underlies human neuronal functional developmental maturation through CALM3 ...
Yue Tian   +5 more
wiley   +1 more source

Discriminant Analysis: the Influence of Exercise Modes on the Effectiveness of the Process of Learning to Throw A Small Ball for 9-Year-Old Boys

open access: yesJournal of Learning Theory and Methodology
The purpose of the study is to determine the effect of the number of repetitions on the effectiveness of the process of learning to throw a small ball for 9-year-old boys. Materials and methods.
Oleg Khudolii   +3 more
doaj   +1 more source

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