Results 11 to 20 of about 126,777 (291)

Mammographic Density Estimation with Automated Volumetric Breast Density Measurement [PDF]

open access: yesKorean Journal of Radiology, 2014
To compare automated volumetric breast density measurement (VBDM) with radiologists' evaluations based on the Breast Imaging Reporting and Data System (BI-RADS), and to identify the factors associated with technical failure of VBDM.In this study, 1129 women aged 19-82 years who underwent mammography from December 2011 to January 2012 were included ...
Ko, Su Yeon   +3 more
openaire   +5 more sources

Volumetric breast density estimation from full-field digital mammograms: a validation study. [PDF]

open access: yesPLoS ONE, 2014
ObjectivesTo objectively evaluate automatic volumetric breast density assessment in Full-Field Digital Mammograms (FFDM) using measurements obtained from breast Magnetic Resonance Imaging (MRI).Material and methodsA commercially available method for ...
Albert Gubern-Mérida   +5 more
doaj   +3 more sources

Flux Density Measurement on Open Volumetric Receivers [PDF]

open access: yes, 2011
Flux density measurement on external receivers is an important parameter for supervision and control of commercial and research solar tower power plants. This article presents a flux density measurement system developed for open volumetric receivers that can be adapted to other receiver systems.
Göhring, Felix   +4 more
openaire   +2 more sources

Sparse Volumetric PZT Array with Density Tapering [PDF]

open access: yes2018 IEEE International Ultrasonics Symposium (IUS), 2018
Volumetric medical ultrasound imaging currently provides either high resolution or high frame rates. We propose a sparse array probe with only 256 elements that are density tapered. All elements are directly wired to an ultrasound engine, thus being flexible in transmission and reception. Here we present the design, realization, and characterization of
Vos, Hendrik J   +10 more
openaire   +2 more sources

Simulating international tax designs on sugar-sweetened beverages in Mexico.

open access: yesPLoS ONE, 2021
In response to the high prevalence of overweight and obesity, Mexico implemented a volumetric tax of one Mexican peso (MP) per liter of sugar-sweetened beverage (SSB) in 2014.
Juan Carlos Salgado Hernández   +1 more
doaj   +1 more source

Cell Design Considerations and Impact on Energy Density—A Practical Approach to EV Cell Design

open access: yesWorld Electric Vehicle Journal, 2023
Higher-energy-density, Wh L−1 or Wh kg−1, lithium-ion cells are one of the critical advancements required for the implementation of electric vehicles. This increase leads to a longer drive distance between recharges. Aside from material development, full
William Yourey
doaj   +1 more source

Area and volumetric density estimation in processed full-field digital mammograms for risk assessment of breast cancer. [PDF]

open access: yesPLoS ONE, 2014
INTRODUCTION: Mammographic density, the white radiolucent part of a mammogram, is a marker of breast cancer risk and mammographic sensitivity. There are several means of measuring mammographic density, among which are area-based and volumetric-based ...
Abbas Cheddad   +6 more
doaj   +1 more source

Precisely Designed Mesoscopic Titania for High-Volumetric-Density Pseudocapacitance

open access: yes, 2021
Surface redox pseudocapacitance, which enables short charging times and high power delivery, is very attractive in a wide range of sites. To achieve maximized specific capacity, nanostructuring of active materials with high surface area is indispensable.
Jun-Ye Zhang (4448392)   +15 more
core   +1 more source

Recria de cordeiras em pastagem nativa melhorada submetida à fertilização nitrogenada: 1. Dinâmica da pastagem Rearing of lambs in improved native pasture submitted to nitrogen fertilization: 1. Pasture dynamic

open access: yesRevista Brasileira de Zootecnia, 2008
Avaliou-se o efeito da fertilização com duas doses de nitrogênio (100 e 200 kg/ha, na forma de uréia) sobre as variáveis produtivas de uma pastagem nativa melhorada (3,12 ha divididos em piquetes de 0,52 ha), tendo como controle áreas sem aplicação de N.
Igor Justin Carassai   +6 more
doaj   +1 more source

A Co-Axial Microtubular Flow Battery Cell with Ultra-high Volumetric Power Density

open access: yes, 2022
Volumetric power density is a key factor determining flow batteries\u27 footprint, capital cost and ability to handle uneven energy resource distributions. While significant progress has been made on flow battery materials and electrochemistry to improve
Huitian, Liu   +11 more
core   +1 more source

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