Results 91 to 100 of about 252,524 (293)

Fourier Analysis of the Parametric Resonance in Neutrino Oscillations

, 2009
Parametric enhancement of the appearance probability of the neutrino oscillation under the inhomogeneous matter is studied. Fourier expansion of the matter density profile leads to a simple resonance condition and manifests that each Fourier mode ...
Akhmedov, Akhmedov, Akhmedov, Akhmedov, Akhmedov, Akhmedov, Akhmedov, Amsler, Chizhov, Chizhov, Dziewonski, Ermilova, Gandhi, Ioannisian, Joe Sato, Koike, Krastev, Landau, Lindner, Liu, Liu, Masafumi Koike, Masako Saito, Minakata, Ota, Ota, Petcov, Toshihiko Ota, Whittaker, Winter   +29 more
core   +2 more sources

Unusual Combination Parametric Resonance

Procedia Engineering, 2014
AbstractThe purpose of this study is to present the computational method applicable for stability analyses of structures. In this paper, a typical complex eigenproblem for a monodromy matrix is solved in order to perform the stability analysis of vehicle streams moving along the bridge.
Wójcicki, Zbigniew, Bryja, Danuta
openaire   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung, E‐nae Cheong, Jungmin So, Heung‐Won Kang, Yangsean Choi, Eun‐Jae Lee, Hyunjin Kim, Young‐Min Lim   +7 more
wiley   +1 more source

Parametric Resonance in a Vibrating Cavity

, 2003
We present the study of parametric resonance in a one-dimensional cavity based on the analysis of classical optical paths. The recursive formulas for field energy are given. We separate the mechanism of particle production and the resonance amplification
Arnold, Berges, Bordag, Cole, Dittrich, Dodonov, Fulling, Hiro-Oka, Lambrecht, Lambrecht, Law, Moore, Méplan, Nagatani, Paweł Wȩgrzyn, Wu, Wȩgrzyn, Wȩgrzyn   +17 more
core   +1 more source

Patterns of Postictal Abnormalities in Relation to Status Epilepticus in Adults

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Abnormalities on peri‐ictal diffusion‐weighted magnetic resonance imaging (DWI‐PMAs) are well‐established for patients with status epilepticus (SE), but knowledge on patterns of DWI‐PMAs and their prognostic impact is sparse. Methods This systematic review and individual participant data meta‐analysis included observational studies ...
Andrea Enerstad Bolle, Silvana Sarria‐Estrada, Thomas Bonduelle, Bertram Daniel Dynesen, Manuel Toledo, Zhu Chung Che, Kjell Heuser, Anastasios Chatzikonstantinou, Jérôme Aupy, Udaya Seneviratne, Estevo Santamarina Perez, Christoph Patrick Beier   +11 more
wiley   +1 more source

Superheavy dark matter and parametric resonance [PDF]

Physics Letters B, 1999
We propose a new scenario to produce the superheavy dark matter based on the inflationary universe. In our scenario, the inflaton couples to both a boson and a stable fermion. Although the fermion is produced by the inflaton decay after inflation, almost energy density of the inflaton is transmitted into the radiation by parametric resonance which ...
Arai, Masato, Hiro-Oka, Hideaki, Okada, Nobuchika, Sasaki, Shin   +3 more
openaire   +2 more sources

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source

Parametric resonance and nonlinear dynamics in a coupled double-pendulum system [PDF]

AIP Advances
Nonlinear dynamics plays a significant role in interdisciplinary fields spanning biology, engineering, mathematics, and physics. Under small-amplitude approximations, certain nonlinear systems can be effectively described by the linear Mathieu equation ...
Yusheng Niu, Yixian Liu, Hongyan Fan, Zhenqi Bai, Yichi Zhang   +4 more
doaj   +1 more source

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai, Guanglin Zhu, Qiu He, Chen Luo, Lingyun Zhuo, Xingfu Wang, Yiming Chen, Xiaoyong Chen, Wendong You, Jiaheng Xu, Yuanxiang Lin, Dezhi Kang, Shuai Wu, Zanyi Wu   +13 more
wiley   +1 more source

Objective Functions in Monocriterial and Multicriterial Optimizations Problems Against a Loss of Dynamic Stability

Engineering Transactions, 2015
The paper concerns the specification and comparison of numerical examples of optimization of beams in the state of periodic parametric resonance with respect to different measures of the phenomena considered, i.e., with respect to different optimization ...
A. Foryś, J. Snamina
doaj   +1 more source