Results 31 to 40 of about 4,724,423 (285)

Effect of a Novel Tooth Pitting Model on Mesh Stiffness and Vibration Response of Spur Gears

open access: yesMathematics, 2022
The existence of pitting failure has a direct influence on the time-varying mesh stiffness (TVMS) and thus changes the vibration properties of the gears.
Jingyu Hou   +3 more
doaj   +1 more source

The Site-Frequency Spectrum of Linked Sites [PDF]

open access: yesBulletin of Mathematical Biology, 2010
The site-frequency spectrum, representing the distribution of allele frequencies at a set of polymorphic sites, is a commonly used summary statistic in population genetics. Explicit forms of the spectrum are known for both models with and without selection if independence among sites is assumed.
openaire   +2 more sources

Effect of a Corrective Exercise Program on the Frequency Spectrum of Ground Reaction Force during Drop-Landing in Older Adults with Genu Valgum

open access: yesSālmand, 2020
Objectives The aim of this study was to evaluate the effects of a corrective exercise protocol on the frequency spectrum of Ground Reaction Force (GRF) in older adults with genu valgum during double-leg drop-landing task.
Elham Sorkhe, Amir Ali Jafarnezhadgero
doaj  

Locating and imaging composite damage based on frequency spectrum detection of lamb waves

open access: yesFrontiers in Physics, 2022
Lamb wave is widely concerned in damage detection of composite structures due to its long propagation distance and strong sensitivity to damage. In order to solve the problem of damage information extraction, high-precision imaging positioning of damage ...
Wenchao Zhang   +3 more
doaj   +1 more source

Measuring the Amount of Mechanical Vibration During Lathe Processing [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2015
The article provides basic information regarding the measurement and evaluation of mechanical vibration during the processing of material by lathe work. The lathe processing can be characterized as removing material by precisely defined tools.
Štefánia SALOKYOVÁ
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Analysis of the Measurements of the Radiated Emission from 9 kHz to 150 kHz from Electric Railways

open access: yesEnergies
The frequency domain measurement of radiated emissions from electric railways (from 9 kHz up to 150 kHz) has been omitted from the main part of the relevant standard (lack of repeatability and reproducibility of the results is mentioned as the reason ...
Babak Sadeghi   +3 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani   +7 more
wiley   +1 more source

The observed power spectrum & frequency-angular power spectrum

open access: yes, 2023
The two-point summary statistics is one of the most commonly used tools in the study of cosmological structure. Starting from the theoretical power spectrum defined in the 3D volume and obtained via the process of ensemble averaging, we establish the construction of the observed 3D power spectrum, folding the unequal-time information around the average
Raccanelli, Alvise, Vlah, Zvonimir
openaire   +2 more sources

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