Results 111 to 120 of about 975,864 (308)

The Elementary Differential Geometry of Plane Curves. [PDF]

, 1921
R. H. Fowler
openalex   +1 more source

The Zero-in-the-Spectrum Question [PDF]

arXiv, 1996
This is an expository article on the question of whether zero lies in the spectrum of the Laplace-Beltrami operator acting on differential forms on a manifold.
arxiv  

Feasibility study of skin dosimetry with TLD sheets for measuring the effect of 3D printed bolus in radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The thermoluminescence dosimeter (TLD) sheet is a measurement device coated with manganese‐doped LiB3O5 in sheet form. The sheet is 0.2‐mm thick and flexible. Hence, it can fit and be installed on irregular surfaces. The current study aimed to evaluate the feasibility of measuring patient surface doses during radiation therapy using TLD sheets.
Yuya Miyasaka, Mayumi Ichikawa, Takagi Akira, Yoshifumi Yamazawa, Hongbo Chai, Hikaru Souda, Miyu Ishizawa, Hiraku Sato, Takeo Iwai   +8 more
wiley   +1 more source

On differential geometry intrinsically connected with a surface element of projective arc length [PDF]

, 1941
P. O. Bell
openalex   +1 more source

Differential geometry of the q-quaternion [PDF]

Balkan Phys. Lett. 11 (2003), 91-101, 2001
Differential calculus on the quantum quaternionic group GL(1,H$_q$) is introduced.
arxiv  

Automatic skin flash optimization in breast and chestwall VMAT with static angle modulated ports: Effect of HU and flash margin size on plan quality and robustness

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Skin flash is typically added to breast and chestwall plans to ensure robust target coverage in the presence of respiratory motion, anatomic changes, and small setup uncertainties. Adding skin flash in volumetric modulated arc therapy (VMAT) plans is an iterative and manual process.
Emily Hubley, Brandon Koger, Taoran Li, Michael Salerno, Ryan M. Scheuermann, Lei Dong, Boon‐Keng Kevin Teo   +6 more
wiley   +1 more source

Advancements in detecting, preventing, and mitigating DDoS attacks in cloud environments: A comprehensive systematic review of state-of-the-art approaches

Egyptian Informatics Journal
This comprehensive study examines cutting-edge strategies for combating Distributed Denial of Service (DDoS) attacks in cloud environments, addressing a critical gap in recent literature. Through a systematic review of the latest advancements, we propose
Mohamed Ouhssini, Karim Afdel, Mohamed Akouhar, Elhafed Agherrabi, Abdallah Abarda   +4 more
doaj  

A visualization of null geodesics for the bonnor massive dipole

Revista de Matemática: Teoría y Aplicaciones, 2015
In this work we simulate null geodesics for the Bonnor massive dipole metric by implementing a symbolic-numerical algorithm in Sage and Python. This program is also capable of visualizing in 3D, in principle, the geodesics for any given metric. Geodesics
G. Andree Oliva Mercado, Javier Bonatti González, Iván Cordero García, Francisco Frutos Alfaro   +3 more
doaj   +1 more source

On the theory of curved surfaces, and canonical systems in projective differential geometry [PDF]

, 1915
G. M. Green
openalex   +1 more source

Differentiable structures on metric measure spaces: A Primer [PDF]

arXiv, 2011
This is an exposition of the theory of differentiable structures on metric measures spaces, in the sense of Cheeger and Keith.
arxiv