Results 181 to 190 of about 1,007,247 (237)

A Portable Transit Satellite Simulator

Offshore Technology Conference, 1978
ABSTRACT The portable TRANSIT satellite simulator described in this paper can test entire satellite receiver computer systems, from antenna input to the resulting computed fix, simulating any location in the world.
F. A. Roberts
semanticscholar   +2 more sources

SAW Oscillators In UHF Transit Satellite Links

IEEE Transactions on Microwave Theory and Techniques, 1981
A 375-MHz surface-acoustic-wave (SAW) resonator controlled oscillator was developed for application in the Transit satellite marine navigation system. The SAW oscillator, in a 2-in/sup 3/ hybrid package, contains a heater, voltage regulator, and divider and is a direct replacement for a bulk wave oscillator and its multiplier chain.
B. Lao, N. Schneier, D. Rowe, R. Dietterle, J. Schoenwald, E. Staples, J. Wise   +6 more
semanticscholar   +3 more sources

Worldwide synchronization using the TRANSIT satellite system

Proceedings of the IEEE, 1972
American TRANSIT satellites have permitted improvements in the synchronization of satellite control networks. A prototype model for the decoding of time signals has been built and tested in the station of Bretigny Centre National d'Etudes Spatiales (CNES).
L. Laidet
semanticscholar   +2 more sources

Clinical characteristics and therapy response in unresectable melanoma patients stage IIIB-IIID with in-transit and satellite metastases.

European Journal of Cancer, 2021
INTRODUCTION Cutaneous melanoma is notorious for the development of in-transit metastases (ITM). For unknown biological reasons, ITM remain the leading tumour manifestation without progression to distant sites in some patients.
A. Zaremba, Manuel Philip, J. Hassel, V. Glutsch, Zeno Fiocco, C. Loquai, D. Rafei-Shamsabadi, R. Gutzmer, J. Utikal, S. Haferkamp, L. Reinhardt, K. Kähler, C. Weishaupt, A. Moreira, K. Thoms, T. Wilhelm, C. Pföhler, A. Roesch, S. Ugurel, L. Zimmer, Nadine Stadtler, A. Sucker, F. Kiecker, L. Heinzerling, F. Meier, F. Meiss, M. Schlaak, B. Schilling, S. Horn, D. Schadendorf, E. Livingstone   +30 more
semanticscholar   +1 more source

Satellite and In-Transit Metastatic Disease in Melanoma Skin Cancer: A Retrospective Review of Disease Presentation, Treatment, and Outcomes

Dermatologic Surgery, 2019
BACKGROUND Satellitosis and in-transit metastases (SITM) are uncommon in cutaneous melanoma and are associated with poor prognosis. However, the disease- and treatment-specific variables that predict outcomes among patients with SITM are poorly defined ...
Darrin V Bann, I. Chaikhoutdinov, Junjia Zhu, Genevieve A. Andrews   +3 more
semanticscholar   +1 more source

Resonant satellite transitions in argon

Physica Scripta, 1990
The production of specific Ar+ satellite states has been studied with synchrotron radiation at wavelengths between 300 and 350 A with an effective energy resolution of 20 meV. The specific states studied were the (3P)4p(2P3/2), (1D)4p(2F7/2), and (1D)4p(2P1/2) states.
James A R Samson, Eun-Mee Lee, Y Chung
openaire   +1 more source

Navigation using Carrier Doppler Shift from a LEO Constellation: TRANSIT on Steroids

Proceedings of the 33rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2020), 2020
A new global navigation system concept is studied that relies entirely on carrier Doppler shift measurements from the downlink signals of a large LEO constellation.
M. Psiaki
semanticscholar   +1 more source

The efficacy of immunotherapy for in-transit metastases of melanoma: an analysis of randomized controlled trials

Melanoma research, 2021
Nearly 10% of patients with high-risk early-stage melanoma will develop satellite or in-transit metastases (ITM), classified as stage III disease similar to lymph node metastases. The pivotal registration trials of the CTLA-4 antibody ipilimumab, and the
R. Olofsson Bagge, L. Ny, P. Ascierto, F. Hodi, J. Larkin, C. Robert, J. Schachter, J. Weber, G. Long, A. V. Van Akkooi   +9 more
semanticscholar   +1 more source

Precise time recovery from transit satellites

Radio Science, 1979
An instrument using time signals from the Navy Navigation Satellite System (Transit) to derive precise time referenced to the U.S. Naval Observatory (USNO) master clock is described. The two sources of system time error, receiver detection error and spacecraft timekeeping error, are analyzed.
R. E. Cashion, G. A. Hunt, J. D. Lavanceau   +2 more
openaire   +1 more source

Navy Navigation Satellite System (Transit)

IEEE Aerospace and Electronic Systems Magazine, 1987
The Navy Navigation Satellite System (TRANSIT) has provided 100% system reliability since being declared operational October 11, 1968. TRANSIT continues to carry out its function of precise, reliable, all weather navigation for the United States Navy and nearly 80,000 worldwide commercial users.
openaire   +1 more source