Results 31 to 40 of about 5,737,218 (322)

Drainage Development in the Dunhuang Basin, NE Tibet, Controlled by Multi-Segment Fault Growth

open access: yesFrontiers in Earth Science, 2021
The Dongbatu Shan (DBTS, also known as the Nanjie Shan), which interrupts the northern Tibetan foreland in the Dunhuang basin, is an active anticline. It has accommodated the northwestern growth of the eastern Altyn Tagh fault system (ATF).
Gan Chen   +21 more
doaj   +1 more source

Analytical magnetic field analysis of Halhach magnetized permanent-magnet machines [PDF]

open access: yes, 2004
We develop analytical models for predicting the magnetic field distribution in Halbach magnetized machines. They are formulated in polar coordinates and account for the relative recoil permeability of the magnets. They are applicable to both internal and
Howe, D., Xia, Z.P., Zhu, Z.Q.
core   +1 more source

Low-noise microwave generation with an air-gap optical reference cavity

open access: yesAPL Photonics
We demonstrate a high finesse, microfabricated mirror-based, air-gap cavity with volume less than 1 ml, constructed in an array, that can support low-noise microwave generation through optical frequency division.
Yifan Liu   +11 more
semanticscholar   +1 more source

EMPhone: Electromagnetic Covert Channel via Silent Audio Playback on Smartphones

open access: yesSensors
Covert channels enable hidden communication that poses significant security risks, particularly when smartphones are used as transmitters. This paper presents the first end-to-end implementation and evaluation of an electromagnetic (EM) covert channel on
Yongjae Kim, Hyeonjun An, Dong-Guk Han
doaj   +1 more source

Study on the breakdown characteristics of conductor-plane gap under vegetation fire condition based on the combustion features

open access: yesThe Journal of Engineering, 2019
The frequent forest fires become a serious threat to the performance of transmission lines’ external insulation, therefore, researches on the breakdown characteristics under flame conditions is of great significance for the transmission lines ...
Daochun Huang, Wei Lu, Tao Yao, Peng Li
doaj   +1 more source

Analysis of the Influence of Structural Defects on the Insulation of GIL Basin Insulator Under AC Electric Field

open access: yesEnergies
Basin insulator is a critical component of gas-insulated transmission line (GIL) systems. Air gap defects and surface crack defects may form in basin insulators due to casting, installation, or transport processes.
Zhuoran Yang   +5 more
doaj   +1 more source

Analytical modeling of open-Circuit air-Gap field distributions in multisegment and multilayer interior permanent-magnet machines [PDF]

open access: yes, 2009
We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and ...
Chan, C.C.   +3 more
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

Iatrogenic Pneumopericardium After Pericardiocentesis: A Systematic Review and Case Report

open access: yesJournal of Cardiovascular Development and Disease
Background: Pneumopericardium is the presence of air within the pericardial cavity. We report a case of iatrogenic pneumopericardium following pericardiocentesis in a patient with primary cardiac angiosarcoma. Additionally, we provide a systematic review
Andreas Merz   +5 more
doaj   +1 more source

Thermal modeling of a mini rotor-stator system [PDF]

open access: yes, 2009
In this study the temperature increase and heat dissipation in the air gap of a cylindrical mini rotor stator system has been analyzed. A simple thermal model based on lumped parameter thermal networks has been developed.
Aarts, Ronald   +4 more
core   +3 more sources

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