Results 191 to 200 of about 2,988,281 (363)

The hydraulic geometry of stream channels and some physiographic implications [PDF]

, 1953
Luna B. Leopold, Thomas Maddock
openalex   +1 more source

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar, Kudret Akçay, Esra Serin, Dursun Eşitmez, Mehmet Sıddık Cebe, Navid Kheradmand, Ömer Yazıcı, Dilek Ünal, Evrim Metcalfe   +8 more
wiley   +1 more source

On the differential geometry of tangent bundles of Riemannian manifolds [PDF]

, 1958
Shigeo Sasaki
openalex   +1 more source

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

Journal 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, Juliane Szkitsak, Oliver J. Ott, Christoph Bert, Stefan Speer   +4 more
wiley   +1 more source

INDUSTRIAL DESIGN AND MODERN EDUCATION

Journal of Industrial Design and Engineering Graphics, 2008
The paper presents a study of modern education regarding the selection and approach of a design theme, its social and psychological impact the aims of the developer of a design product, the key steps in the development of the theme and its completion ...
CRISAN Nour - I., BODEA, Sanda, BUDISAN Tiberiu   +2 more
doaj  

Design and validation of a novel dosimetry phantom for motion management audits

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton, Sabeena Beveridge, Nicholas Hardcastle, Silvio Malfitana, Janaka Madamperuma, Rick Franich   +5 more
wiley   +1 more source

MAIN SURFACE FEATURES

Journal of Industrial Design and Engineering Graphics, 2010
Surface characterization means splitting the surface geometry into basic components based usually on some functional requirement. These components can have different shapes, scales of size, distribution in space and can be constrained by multiple ...
MINTIANSCHI Andrei V., SIMION Ionel
doaj  

Projective differential geometry of curved surfaces [PDF]

, 1907
E. J. Wilczynski
openalex   +1 more source

Improving dose delivery in non‐coplanar cranial SRS: Stereoscopic x‐ray‐guided mitigation of table walkout errors

Journal of Applied Clinical Medical Physics, EarlyView.
Purpose Linear accelerator (LINAC)‐based single‐isocenter multi‐target (SIMT) treatment has streamlined the cranial stereotactic radiosurgery (SRS) workflow. Though efficient, SIMT delivery adds additional challenges that should be considered, including increased sensitivity to rotational errors for off‐isocenter targets.
Yohan A. Walter, Philip F. Durham, Anne N. Hubbard, William E. Burrell, Hsinshun T. Wu   +4 more
wiley   +1 more source

Concircular geometry V. Einstein spaces [PDF]

, 1942
Kentarô Yano
openalex   +1 more source