Results 81 to 90 of about 1,420,902 (265)

Colisão com o 'efeito estilingue'

Revista Brasileira de Ensino de Física
Abordamos teoricamente a colisão com o 'efeito estilingue' onde um corpo transfere momento linear e energia cinética para um segundo corpo de massa menor, fazendo com que a energia mecânica desse segundo corpo cresça de forma surpreendente. Mostramos que,
Fernando Lang da Silveira, Luci F.M Braun, Thomas Braun   +2 more
doaj   +1 more source

A New Approach To Estimate The Collision Probability For Automotive Applications

, 2020
We revisit the computation of probability of collision in the context of automotive collision avoidance (the estimation of a potential collision is also referred to as conflict detection in other contexts).
Altendorfer, Richard, Wilkmann, Christoph   +1 more
core  

A Differential Game Approach to Multi-agent Collision Avoidance

IEEE Transactions on Automatic Control, 2017
A multi-agent system consisting of $N$ agents is considered. The problem of steering each agent from its initial position to a desired goal while avoiding collisions with obstacles and other agents is studied. This problem, referred to as the multi-agent
T. Mylvaganam, M. Sassano, A. Astolfi
semanticscholar   +1 more source

AAPM‐RSS Medical Physics Practice Guideline 9.b: SRS‐SBRT

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The purpose of this Medical Physics Practice Guideline (MPPG) is to describe the minimum level of medical physics support deemed prudent for the practice of linear‐accelerator, photon‐based (linac) stereotactic radiosurgery (SRS), and stereotactic body radiation therapy (SBRT) services.
Eileen Cirino, Stanley H. Benedict, Pamela J. Dupre, Per H. Halvorsen, Grace Gwe‐Ya Kim, Meral L. Reyhan, Christopher W. Schneider, Lei Wang, Carl P. Weaver, Sua Yoo   +9 more
wiley   +1 more source

Quantitative beam optimization for radiotherapy of peripheral lung lesions: A pilot study in stereotactic body radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background To quantify beam optimization for stereotactic body radiotherapy (SBRT) of peripheral lung lesions. Method The new beam optimization approach was based on maximizing the therapeutic gain (TG) of the beam set by minimizing the average physical depth of the lesion with respect to the beam's eye view (BEV).
Hamed Hooshangnejad, Jina Lee, Leslie Bell, Russell K. Hales, Khinh Ranh Voong, Sarah Han‐Oh, Kai Ding, Reza Farjam   +7 more
wiley   +1 more source

Toward a human‐centric co‐design methodology for AI detection of differences between planned and delivered dose in radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Many artificial intelligence (AI) solutions have been proposed to enhance the radiotherapy (RT) workflow, but limited applications have been implemented to date, suggesting an implementation gap. One contributing factor to this gap is a misalignment between AI systems and their users.
Luca M. Heising, Frank Verhaegen, Stefan G. Scheib, Maria J. G. Jacobs, Carol X. J. Ou, Viola Mottarella, Yin‐Ho Chong, Mariangela Zamburlini, Sebastiaan M. J. J. G. Nijsten, Ans Swinnen, Michel Öllers, Cecile J. A. Wolfs   +11 more
wiley   +1 more source

Research on the Test Technology of Civil Aircraft Impacted by UAV Based on Rocket Sled

Hangkong gongcheng jinzhan, 2020
The research on the damage degree of the key parts of civil aircraft impacted by UAV is a new hot issue in the field of civil aviation. It is the first time that rocket sled test is proposed to evaluate the safety of UAV colliding with civil aircraft ...
ZHENG Kuitao, GONG Mingsheng, JIANG Dapeng, LIU Jun   +3 more
doaj   +1 more source

Evaluation of the system accuracy of frameless stereotactic radiosurgery using a combination of cone beam CT, six degrees of freedom couch, and surface image‐guided systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate the accuracy of the frameless linear accelerator‐based stereotactic radiosurgery (FSRS) system incorporating cone‐beam CT (CBCT), six degrees of freedom (6‐DoF) couch, room laser, and surface image‐guided (SG) systems.
Hao‐Wen Cheng, Jonathan Li, Sheng‐Hsuan Sun, Guanghua Yan, Chihray Liu   +4 more
wiley   +1 more source

KINETIC METHODS OF TREATMENT IN WHIPLASH – REAR-END [PDF]

Annals of the “Ştefan cel Mare” University: Physical Education and Sport Section - The Science and Art of Movement, 2018
Whiplash is a neck-head trauma, and is most commonly encountered in auto accidents or sports in which speed is one of the contributory factors. The mechanism relates to the collision between two vehicles. The important factors to be considered are the
Maria Daniela HAVRIŞ, Adriana SABĂU, Francisc Tadeus DANELCIUC   +2 more
doaj  

Obstacle Detection and Collision Avoidance for a UAV With Complementary Low-Cost Sensors

IEEE Access, 2015
This paper demonstrates an innovative and simple solution for obstacle detection and collision avoidance of unmanned aerial vehicles (UAVs) optimized for and evaluated with quadrotors.
Nils Gageik, Paul Benz, S. Montenegro
semanticscholar   +1 more source