Results 51 to 60 of about 12,146,561 (360)

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein   +7 more
wiley   +1 more source

EFFICIENCY OF ENERGY PLANTATIONS

open access: yesEnergy Systems Research, 2018
This paper presents an overview of the studies on creation and use of energy plantations. Their economic and environmental benefits are discussed. An economic-mathematical model for the efficiency analysis of energy plantations for fuel supply to remote settlements is briefly described. The results of the study based on this model are illustrated by an
Valery Zorkaltsev, Elena Gubiy
openaire   +2 more sources

A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Patients with body weights close to or above 400 lbs present unique challenges in radiation therapy since the weight limit of most treatment couches decreases as the couch‐top extends toward the treatment gantry. The purpose of this work was to develop a small footprint couch‐top support platform to safely perform image‐guided ...
Huixiao Chen   +5 more
wiley   +1 more source

The relative insignificance of advanced materials in enhancing the energy efficiency of desalination technologies

open access: yesEnergy & Environmental Science, 2020
We reveal the insignificance of advanced materials in further enhancing the energy efficiency of desalination and suggest more impactful approaches.
Sohum K. Patel   +6 more
semanticscholar   +1 more source

Treatment planning with a 2.5 MV photon beam for radiation therapy

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi   +5 more
wiley   +1 more source

Opportunities of energy saving in lighting systems for public buildings

open access: yesRenewable Energy and Sustainable Development, 2017
The lighting system provides many options for cost-effective energy saving with low or no inconvenience. Lighting improvements are excellent investments in most public buildings, it is usually cost-effective to address because lighting improvements are ...
Ayman Abd El-khalek   +2 more
doaj   +1 more source

Assessing Voltage Unbalance Conditions in IE2, IE3 and IE4 Classes Induction Motors

open access: yesIEEE Access, 2020
Brazil has started an energy transition process through more efficient electric motors. The new legislation determining the IE3 Class as the minimum efficiency level in commercial electric motors became valid in August 2019.
Jonathan Munoz Tabora   +5 more
doaj   +1 more source

Thermo-Hydraulic Performance Characteristics and Optimization of Protrusion Rib Roughness in Solar Air Heater

open access: yesEnergies, 2021
To enhance the thermal performance of solar air heaters (SAHs), protrusion ribs on the absorber are considered to be an attractive solution due to their several advantages.
Tabish Alam   +4 more
doaj   +1 more source

Light energy efficiency in lettuce crop: Structural indoor designs simulation [PDF]

open access: yes, 2023
Producción CientíficaIndoor agricultural offers efficient alternatives for intensive food production through automation technologies and controlled environments.
Correa Guimaraes, Adriana   +2 more
core   +1 more source

Effect of different noise reduction techniques and template matching parameters on markerless tumor tracking using dual‐energy imaging

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur   +9 more
wiley   +1 more source

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