Results 241 to 250 of about 602,455 (339)

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

Precise orbit determination for GPS satellites [PDF]

The NAVSTAR Global Positioning System (GPS) has been under development by the US Department of Defense since 1973. Although GPS was developed for precise instantaneous position and velocity determination, it can be used for high precision relative ...
Whalley, Stephen
core  

A Three-Step Method for Determining Unhealthy Time Period of GPS Satellite Orbit in Broadcast Ephemeris and Its Preliminary Applications for Precise Orbit Determination [PDF]

, 2019
Fei Ye, Yunbin Yuan, Baocheng Zhang, Bingfeng Tan, OU Jikun   +4 more
openalex   +1 more source

GPS/BDS signal analysis and precise orbit determination of the inclined geosynchronous orbit satellite LT4A [PDF]

Zhenghao Zhang, Peng Yang, Zhenxing Wang, Yong Huang, Jianfeng Cao, Yanling Chen, Zhien Cheng, Wenli Dong, Xiaogong Hu   +8 more
openalex   +1 more source

The Influence of Geomagnetic Storm of 7‐8 September 2017 on the Swarm Precise Orbit Determination [PDF]

, 2019
Keke Zhang, Xingxing Li, Chao Xiong, Xiangguang Meng, Xin Li, Yongqiang Yuan, Xiaohong Zhang   +6 more
openalex   +1 more source

Influences of Discontinuous Attitudes on GNSS/LEO Integrated Precise Orbit Determination Based on Sparse or Regional Networks [PDF]

Yuanxin Wang, Baoqi Sun, Kan Wang, Yang Xuhai, Zhe Zhang, Minjian Zhang, Meifang Wu   +6 more
openalex   +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

Real-Time Orbit Determination of Micro-Nano Satellite Using Robust Adaptive Filtering. [PDF]

Sensors (Basel)
Chen J, Jin X, Hou C, Zhu L, Xu Z, Jin Z.   +5 more
europepmc   +1 more source

An MRI assessment of mechanisms underlying lesion growth and shrinkage in multiple sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
By applying the tensor model, we analysed lesion orientation and the directionality of lesion expansion/contraction in multiple sclerosis. Each lesion is summarized as an ellipsoid, and the tensor model is applied to calculate lesion anisotropy. From the top to the bottom white matter atlas, surface‐in gradient segmentation and venous atlas used in the
Ermelinda De Meo, Ferran Prados Carrasco, J. William L. Brown, Alasdair J. Coles, Nick G. Cunniffe, Amy E. Jolly, Baris Kanber, Rebecca Samson, Frederik Barkhof, Declan Chard   +9 more
wiley   +1 more source

Real-Time Identification Algorithm of Daylight Space Debris Laser Ranging Data Based on Observation Data Distribution Model. [PDF]

Sensors (Basel)
Liu Y, Dong X, Gao J, Guan B, Zheng Y, Liang Z, Han X, Dong H.   +7 more
europepmc   +1 more source