Results 31 to 40 of about 1,109,078 (272)

LEO-Augmented GNSS Based on Communication Navigation Integrated Signal

Sensors, 2019
Low Earth Orbit (LEO) is of great benefit for the positioning performance of Global Navigation Satellite System (GNSS). To realize the system of LEO-augmented GNSS, three methods to integrate communication and navigation signal for LEO communication ...
Lei Wang, Zhicheng Lü, Xiaomei Tang, Ke Zhang, Feixue Wang   +4 more
doaj   +1 more source

The Local Group dwarf Leo T: HI on the brink of star formation [PDF]

, 2007
We present Giant Meterwave Radio Telescope (GMRT) and Westerbork ynthesis Radio Telescope (WSRT) observations of the recently discovered Local Group dwarf galaxy, Leo T. The peak HI column density is measured to be 7x10^20 cm^-2, and the total HI mass is
Ayesha Begum, Begum, Belokurov, Benson, Binney, Blitz, Braun, Clark, Cooray, Daniel B. Zucker, Dekel, Efstathiou, Emma V. Ryan-Weber, Gilmore, Grebel, Irwin, Kaufmann, Klypin, Koposov, Mateo, McClure-Griffiths, Michael J. Irwin, Moore, N. Wyn Evans, Penston, Read, Ricotti, Sabyasachi Pal, Sault, Schaye, Simon, Stanimirović, Swarup, Taylor, Tom Oosterloo, Van Zee, Vasily Belokurov, Wong, Young, Young   +39 more
core   +2 more sources

Response criteria in solid tumors (PERCIST/RECIST) and SUVmax in early-stage non-small cell lung cancer patients treated with stereotactic body radiotherapy

Radiation Oncology, 2018
Background The purpose of this study was to evaluate the prognostic impact of Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST) and Response Evaluation Criteria in Solid Tumors (RECIST) and of pre- and post-treatment maximum ...
Cory Pierson, Taras Grinchak, Casey Sokolovic, Brandi Holland, Teresa Parent, Mark Bowling, Hyder Arastu, Paul Walker, Andrew Ju   +8 more
doaj   +1 more source

INTERVENTION PROGRAM FOR FL TEXT COMPREHENSION

Russian Journal of Education and Psychology, 2022
Purpose. The article is devoted to the study of an innovative method that can be used by teachers to develop reading skills in foreign language lessons, in particular, with the help of an intervention program for reading comprehension in English, which ...
Olga A. Kudinova, Valentina I. Kudinova
doaj   +1 more source

Downlink Coverage and Rate Analysis of Low Earth Orbit Satellite Constellations Using Stochastic Geometry [PDF]

, 2020
As low Earth orbit (LEO) satellite communication systems are gaining increasing popularity, new theoretical methodologies are required to investigate such networks' performance at large.
Angervuori, Ilari, Korpi, Dani, Okati, Niloofar, Riihonen, Taneli, Wichman, Risto   +4 more
core   +2 more sources

Correlation between Grades Earned and Time in Online Courses

Online Learning, 2017
Online education is rapidly becoming a significant method of course delivery in higher education. Consequently instructors are analyzing student performance in an attempt to better scaffold student learning.
Lin Carver, Keya Muhkerjee, Robert Lucio
doaj   +1 more source

Oxygen and Nitrogen in Leo A and GR 8

, 2005
We present elemental abundances for multiple HII regions in Leo A and GR 8 obtained from long slit optical spectroscopy of these two nearby low luminosity dwarf irregular galaxies.
De Robertis M. M., Evan D. Skillman, Gathier R., Heydari-Malayeri M., Howarth I. D., Hummer D. G., Lambert D. L., Legrand F., Liese van Zee, Maddox S. J., Martha P. Haynes, Masegosa J., Moles M., Olofsson K., Pagel B. E. J., Pagel B. E. J., Peimbert M., Pilyugin L. S., Ronnback J., Seaton M. J., Skillman E. D., Skillman E. D., Stasinska G., Webster B. L., Zijlstra A. A.   +24 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Design and Manufacture of Thermal Model of AUTSAT Satellite and Its Thermal Balance Test [PDF]

فصلنامه علوم و فناوری فضایی, 2016
Base on space standards, the thermal design evaluations for satellites are performed using thermal balance tests. Regularly, the thermal model is used for the thermal balance test.
hamed Alisadesghi, Hamed Ramezani-Najafi, Hossein Reza Abbasi   +2 more
doaj  

Dynamics of resonances and equilibria of Low Earth Objects

, 2017
The nearby space surrounding the Earth is densely populated by artificial satellites and instruments, whose orbits are distributed within the Low-Earth-Orbit region (LEO), ranging between 90 and 2 000 $km$ of altitude.
Celletti, Alessandra, Galeş, Cătălin
core   +1 more source