Results 211 to 220 of about 348,476 (369)

An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood, Shane McCarthy, Josh Misa, David Castelvetere, William St. Clair, Damodar Pokhrel   +5 more
wiley   +1 more source

Near earth objects space observatory

, 2015
In this Master Thesis we begin with an introduction about Near Earth Objects (NEOs). We start with the different kind of existing NEOs, and then we will focus more on which ones can represent the biggest hazard for Earth. Thus many studies suggest irrelevant number of meteorites hit the earth each year, but actually is very hard to know number of exact
openaire   +1 more source

Conceptual Design and Parametric Optimization of a New Multileveled Horsetail Structure for Bicycle Helmets

Advanced Engineering Materials, EarlyView., 2023
This study aims to explore the feasibility of using a structure inspired by the features of horsetail and human spine as the potential helmet liner, targeting at mitigation of acceleration‐induced injuries. A parametric study is conducted to investigate the effect of individual geometrical variables in the design, indicating its capability to reduce ...
Bing Leng, Dong Ruan, Shanqing Xu, Kwong Ming Tse   +3 more
wiley   +1 more source

Topology Optimization of Lattice Support Structure for Cantilever Beams Fabricated Via Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView., 2023
A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu, Marjan Molavi‐Zarandi, Damiano Pasini   +2 more
wiley   +1 more source

First Results from the Rapid-response Spectrophotometric Characterization of Near-Earth Objects Using RATIR [PDF]

, 2019
S. Navarro-Meza, Michael Mommert, David E. Trilling, N. Butler, M. Reyes‐Ruiz, B. Pichardo, T. S. Axelrod, Robert Jedicke, Nicholas Moskovitz   +8 more
openalex   +1 more source

Architected Lattices with a Topological Transition

Advanced Engineering Materials, EarlyView., 2023
This article develops topological metamaterials showing multidirectional two‐step deformation under compression by embedding contact‐enabled topological mechanisms into lattice structures. Experiments on 3D‐printed 2D and 3D lattices and finite element simulations are conducted to demonstrate the working principle of the topological metamaterials.
Shivam Agarwal, Lihua Jin
wiley   +1 more source

Space Debris In-Orbit Detection with Commercial Automotive LiDAR Sensors. [PDF]

Sensors (Basel)
Lopez-Calle I.
europepmc   +1 more source

Space Surveillance with High-Frequency Radar. [PDF]

Sensors (Basel)
Hennessy B, Yardley H, Debnam R, Camilleri TA, Spencer NK, Holdsworth DA, Warne G, Cheung B, Kharabash S.   +8 more
europepmc   +1 more source

Determining the performance indicators of employing combined methods for removing space objects from near-earth orbits

, 2022
Mykola Dron’, Tetianа Hilorme, Aleksandr Golubek, Andrii Dreus, Ludmila Dubovik   +4 more
openalex   +2 more sources

Reply to 'Experimental measurement of assembly indices are required to determine the threshold for life'. [PDF]

J R Soc Interface
Hazen RM, Burns PC, Cleaves Ii HJ, Downs RT, Krivovichev SV, Wong ML.   +5 more
europepmc   +1 more source