Results 51 to 60 of about 961,733 (195)

Bistatic scattering simulations of circular and linear polarizations over land surface for signals of opportunity reflectometry

Geoscience Letters, 2021
Signals of Opportunity Reflectometry (SoOp-R) employs the communication system, GNSS (Global Navigation Satellite System) constellation and other potential Signals of Opportunity (SoOp) as the transmitters.
Xuerui Wu, Yezhi Song, Jin Xu, Zheng Duan, Shuanggen Jin   +4 more
doaj   +1 more source

Mass Predictions of Open-Flavour Hybrid Mesons from QCD Sum Rules

, 2016
Within QCD, colourless states may be constructed corresponding to exotic matter outside of the traditional quark model. Experiments have recently observed tetraquark and pentaquark states, but no definitive hybrid meson signals have been observed.
Harnett, Derek, Ho, Jason, Steele, Tom
core   +1 more source

Signals of Opportunity: Using Signal Defined Radio to Identify Potential Candidate

Repüléstudományi Közlemények, 2019
This paper deals with the prospect of using cellular network signals as one of the candidates from the signals of opportunity as a supplementary or alternative source for navigation and positioning via onboard software defined radio. A low-cost system for modelling GSM coverage over a particular area is proposed.  
Košuda, Marek, Szabo, Stanislav
openaire   +3 more sources

Referenceless Doppler Shift and Rate Estimation for Opportunistic Positioning With OneWeb Signals

IEEE Access
We propose a technique for extracting the Doppler shift and its rate from OneWeb’s Ku-band user downlink signals and demonstrate its suitability for opportunistic positioning.
Nabil Jardak, Ronan Adam, Quentin Jault
doaj   +1 more source

Genome-wide trans-ancestry meta-analysis provides insight into the genetic architecture of type 2 diabetes susceptibility. [PDF]

, 2014
To further understanding of the genetic basis of type 2 diabetes (T2D) susceptibility, we aggregated published meta-analyses of genome-wide association studies (GWAS), including 26,488 cases and 83,964 controls of European, east Asian, south Asian and ...
Abecasis, Goncalo R, Adair, Linda S, Almgren, Peter, Asian Genetic Epidemiology Network Type 2 Diabetes (AGEN-T2D) Consortium, Atalay, Mustafa, Aung, Tin, Baldassarre, Damiano, Balkau, Beverley, Bao, Yuqian, Barnett, Anthony H, Barroso, Ines, Basit, Abdul, Been, Latonya F, Beilby, John, Bell, Graeme I, Below, Jennifer E, Benediktsson, Rafn, Bergman, Richard N, Boehm, Bernhard O, Boerwinkle, Eric, Bonnycastle, Lori L, Burtt, Noël, Cai, Qiuyin, Campbell, Harry, Carey, Jason, Cauchi, Stephane, Caulfield, Mark, Chan, Juliana CN, Chang, Li-Ching, Chang, Tien-Jyun, Chang, Yi-Cheng, Charpentier, Guillaume, Chen, Chien-Hsiun, Chen, Han, Chen, Yuan-Tsong, Chia, Kee-Seng, Chidambaram, Manickam, Chines, Peter S, Cho, Nam H, Cho, Young Min, Chuang, Lee-Ming, Chuang, Lee-Ming, Collins, Francis S, Cornelis, Marylin C, Couper, David J, Crenshaw, Andrew T, Danesh, John, Das, Debashish, de Faire, Ulf, Dedoussis, George, Deloukas, Panos, DIAbetes Genetics Replication And Meta-analysis (DIAGRAM) Consortium, Dimas, Antigone S, Dina, Christian, Doney, Alex S, Donnelly, Peter J, Dorkhan, Mozhgan, Dupuis, Josée, Edkins, Sarah, Elliott, Paul, Emilsson, Valur, Erbel, Raimund, Eriksson, Johan G, Escobedo, Jorge, Esko, Tonu, Eury, Elodie, Ferreira, Teresa, Florez, Jose C, Fontanillas, Pierre, Forouhi, Nita G, Forsen, Tom, Fox, Caroline, Fraser, Ross M, Frayling, Timothy M, Froguel, Philippe, Frossard, Philippe, Gao, Yutang, Gaulton, Kyle J, Gertow, Karl, Gieger, Christian, Gigante, Bruna, Go, Min Jin, Grallert, Harald, Grant, George B, Groves, Chrisropher J, Grrop, Leif C, Horikoshi, Momoko, Johnson, Andrew D, Mahajan, Anubha, Mexican American Type 2 Diabetes (MAT2D) Consortium, Ng, Maggie CY, Prokopenko, Inga, Saleheen, Danish, South Asian Type 2 Diabetes (SAT2D) Consortium, Type 2 Diabetes Genetic Exploration by Nex-generation sequencing in muylti-Ethnic Samples (T2D-GENES) Consortium, van Dam, Rob M, van Duijn, Cornelia, Wang, Xu, Zeggini, Eleftheria, Zhang, Weihua   +99 more
core  

Overlooked astrophysical signatures of axion(-like) particles [PDF]

, 2007
The working principle of axion helioscopes can be behind unexpected solar X-ray emission, being associated with solar magnetic fields, which become the catalyst. Solar axion signals are transient brightenings, or, continuous radiation.
Papaevangelou, Thomas, Semertzidis, Yannis, Zioutas, Konstantin   +2 more
core   +1 more source

Signals of opportunity for space navigation: An application-oriented review

Results in Engineering
Space navigation using X-Ray pulsars is known as opportunistic navigation, where we rely on signals of opportunity from natural phenomena to determine navigation solutions for spacecraft. However, this definition becomes too small or shallow, as it doesn'
A.J.R. Lopez-Arreguin, S. Montenegro
doaj   +1 more source

Differential Signals-of-Opportunity Timing Back-Up Method on VHF Band for Critical Infrastructures

IEEE Access
This paper describes a back-up method for GNSS-free timing for power lines which is currently achieved using fibre links. The method is based on software-defined-radio technologies for monitoring low-frequency signals of opportunity (SoOp) serving as an ...
Martta-Kaisa Olkkonen, Maija Makela, Sanna Kaasalainen   +2 more
doaj   +1 more source

Signals of Opportunity for Positioning Purposes

, 2018
O ver the last years, location-based services (LBS) have become popular due to the emergence of smartphones with capabilities of positioning their user’s location on Earth at unprecedented speed and convenience. Behind such feat are the technological advances in global navigation satellite systems (GNSS), such as Galileo, Globalnaya Navigazionnaya ...
openaire   +3 more sources

Ultra-Fast Hadronic Calorimetry

, 2018
Calorimeters for particle physics experiments with integration time of a few ns will substantially improve the capability of the experiment to resolve event pileup and to reject backgrounds.
Denisov, Dmitri, Lukić, Strahinja, Mokhov, Nikolai, Striganov, Sergei, Ujić, Predrag   +4 more
core   +1 more source