Results 41 to 50 of about 721,814 (289)

Dynamics and symmetries of a field partitioned by an accelerated frame [PDF]

open access: yes, 1988
The canonical evolution and symmetry generators are exhibited for a Klein-Gordon (K-G) system which has been partitioned by an accelerated coordinate frame into a pair of subsystems.
S. A. Fulling   +5 more
core   +2 more sources

Generic Generators

open access: yes, 2023
The goal of this paper is to present an approach to Hod Pair Capturing (HPC). $HPC$ is the most outstanding open problem of descriptive inner model theory. More specifically, we introduce two principles, the Direct Limit Independence and the Bounded Direct Limits, and show that they together imply HPC.
openaire   +2 more sources

SCADA Data Analysis Methods for Diagnosis of Electrical Faults to Wind Turbine Generators

open access: yesApplied Sciences, 2021
The electric generator is estimated to be among the top three contributors to the failure rates and downtime of wind turbines. For this reason, in the general context of increasing interest towards effective wind turbine condition monitoring techniques ...
Francesco Castellani   +2 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

On the free field realization of $WBC_n$ algebras [PDF]

open access: yes, 1997
Defining the $WBC_n$ algebras as the commutant of certain screening charges a special form for the classical generators is obtained which does not change under quantisation.
Bajnok   +12 more
core   +4 more sources

Words for maximal Subgroups of Fi24‘

open access: yesOpen Chemistry, 2019
Group Theory is the mathematical application of symmetry to an object to obtain knowledge of its physical properties. The symmetry of a molecule provides us with the various information, such as - orbitals energy levels, orbitals symmetries, type of ...
Yasin Faisal   +2 more
doaj   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

New Superstring Isometries and Hidden Dimensions

open access: yes, 2007
We explore the hierarchy of hidden space-time symmetries of noncritical strings in RNS formalism, realized nonlinearly. Under these symmetry transformations the variation of the matter part of the RNS action is cancelled by that of the ghost part.
Polyakov, Dimitri
core   +2 more sources

From Generation to Generation [PDF]

open access: yesClinical Chemistry, 2019
This work (Fig. 1) is a geometric abstraction that I created using pencil, ink, and acrylic paint on canvas. It could be interpreted as a spatial representation of time, peering along the branches of a pedigree or phylogenetic tree. The tree consists of three main branches with “cousins” on two of the branches connected by …
openaire   +3 more sources

An Improved Structure of an Adaptive Excitation Control System Operating under Short-Circuit

open access: yesAdvances in Electrical and Computer Engineering, 2016
The paper presents an extended structure for a minimum variance adaptive control system of an induction generator, which aims to improve its operating behavior under electrical short-circuit conditions.
FILIP, I.   +3 more
doaj   +1 more source

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