Results 111 to 120 of about 8,325 (213)

The Loss of Starlink Satellites in February 2022: How Moderate Geomagnetic Storms Can Adversely Affect Assets in Low‐Earth Orbit

Space Weather
On 3 February 2022, SpaceX launched 49 Starlink satellites, 38 of which unexpectedly de‐orbited. Although this event was attributed to space weather, definitive causality remained elusive because space weather conditions were not extreme.
Yoshita Baruah, Souvik Roy, Suvadip Sinha, Erika Palmerio, Sanchita Pal, Denny M. Oliveira, Dibyendu Nandy   +6 more
doaj   +1 more source

Ionospheric Weather at Two Starlink Launches during Two-Phase Geomagnetic Storms. [PDF]

Sensors (Basel), 2023
Gulyaeva T, Hernández-Pajares M, Stanislawska I.   +2 more
europepmc   +1 more source

Seeds of change [PDF]

It's been eight years since genetically modified seeds first came on the market. Farmers have seen some advantages, but certain consumers, particularly those abroad, are still resisting the technology.Agriculture ...
Molly Lesher
core  

Deployment and Coverage Analysis of Typical Large-Scale LEO Communication Constellations

天地一体化信息网络
Low Earth Orbit (LEO) large-scale communication constellations have emerged as a focal point in communication due to their substantial scale and rapid deployment capabilities.
RUAN Yongjing, HU Min, XUE Wen
doaj  

Irradiated brown dwarfs

, 2013
We have observed the post common envelope binary WD0137-349 in the near infrared $J$, $H$ and $K$ bands and have determined that the photometry varies on the system period (116 min).
Burleigh, M. R., Casewell, S. L., Dobbie, P. D., Lawrie, K. A., Maxted, P. F. L., Napiwotzki, R.   +5 more
core  

An Analysis of McLean County, Illinois Farmers' Perceptions of Genetically Modified Crops [PDF]

McLean County, Illinois farmers were surveyed in order to explore and analyze their perceptions of genetically modified crops and their genetically modified cropping decisions.
Chimmiri, Nagesh, Spaulding, Aslihan D., Tudor, Kerry W.   +2 more
core   +1 more source

Оптимальне планування розміщення Starlink

Дипломна робота містить 70 сторінок, 31 рисунок, 3 таблиці. Було використано 29 джерел інформації. Актуальність роботи. Тема є надзвичайно актуальною, оскільки від правильного планування залежить якість покриття, ефективність використання ресурсів та економічна доцільність впровадження системи.
openaire   +1 more source

Coordinate transformation method for beam grazing angle calculation of space-based early warning radar. [PDF]

Sci Rep
Huang X, Zhang Y.
europepmc   +1 more source

Angles-Only Navigation via Optical Satellite Measurement with Prior Altitude Constrained. [PDF]

Sensors (Basel)
Dai D, Ni Y, Yu Y, Li J, Qin S.
europepmc   +1 more source

Future Technologies for Train Communication: The Role of LEO HTS Satellites in the Adaptable Communication System. [PDF]

Sensors (Basel), 2022
Vizzarri A, Mazzenga F, Giuliano R.
europepmc   +1 more source