Results 141 to 150 of about 410,519 (339)

ANALYSIS OF STUDENTS' ERRORS IN SOLVING PLANE GEOMETRY WORD PROBLEMS BASED ON NEWMAN’S ERROR ANALYSIS (NEA) METHOD

open access: yesPrima: Jurnal Pendidikan Matematika
This study aims to apply Newman's Error Analysis (NEA) as a method for teaching students to identify mistakes they make when solving word problems involving plane geometry, identify factors that contribute to students' difficulty in understanding ...
dinda Sholehah Syawali, Ima Mulyawati
doaj   +1 more source

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab   +6 more
wiley   +1 more source

On plane Λ-fractional linear elasticity theory

open access: yesTheoretical and Applied Mechanics Letters, 2020
: Non-local plane elasticity problems are discussed in the context of Λ-fractional linear elasticity theory. Adapting the Λ-fractional derivative along with the Λ-fractional space, where geometry and mechanics are valid in the conventional way, non-local
K.A. Lazopoulos, A.K. Lazopoulos
doaj  

Shielding resources for four common radiopharmaceuticals utilized for imaging and therapy: Tc‐99m, F‐18, I‐131, and Lu‐177

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano   +12 more
wiley   +1 more source

UNIFIED CORRELATION OF GEOMETRY CONSTRAINT WITH FRACTURE TOUGHNESS FOR THE INTERFACE CRACK IN BIMETALLIC JOINTS

open access: yesJixie qiangdu, 2017
A unified constraint characterization parameter Aphas been defined based on the homogeneous material A508 in the previous study of authors. However,it is not clear that whether the unified correlation of in-plane and out-of-plane constraint with fracture
YANG Jie, WANG GuoZhen, WANG YiHao
doaj  

An extension to the OVH concept for knowledge‐based dose volume histogram prediction in lung tumor volumetric‐modulated arc therapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Volumetric‐modulated arc therapy (VMAT) treatment planning allows a compromise between a sufficient coverage of the planning target volume (PTV) and a simultaneous sparing of organs‐at‐risk (OARs). Particularly in the case of lung tumors, deciding whether it is possible or worth spending more time on further improvements of a treatment
Johann Brand   +4 more
wiley   +1 more source

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