Results 101 to 110 of about 286,691 (306)

Calculation of seismic regime parameters on the basis of a probabilistic model of Kamchatka earthquake catalogue

E3S Web of Conferences, 2016
In the present paper on the basis of a probabilistic interpretation of the earthquake repetition law, simple formulas were obtained which allow us from the known number of earthquake events in a representative interval of energy class (magnitude) to ...
Bogdanov Vadim, Pavlov Aleksey
doaj   +1 more source

Measurements and Models of 915 MHz LoRa Radio Propagation in an Underground Gold Mine. [PDF]

Sensors (Basel), 2022
Branch P.
europepmc   +1 more source

On the Frequency Dependency of Radio Channel's Delay Spread: Analyses and Findings From mmMAGIC Multi-frequency Channel Sounding

, 2017
This paper analyzes the frequency dependency of the radio propagation channel's root mean square (rms) delay spread (DS), based on the multi-frequency measurement campaigns in the mmMAGIC project.
Bamba, Aliou, Conrat, Jean-Marc, D'Errico, Raffaele, Diakhate, Cheikh, Haneda, Katsuyuki, Iqbal, Naveed, Karttunen, Aki, Medbo, Jonas, Nguyen, Sinh L. H., Peter, Michael   +9 more
core   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

Advanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández, Álex Farrando Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla, José A. Quintana, Yanpei Wan, Daniel Aranda, José Manuel Marín‐Beloqui, Jishan Wu, Zebing Zeng, María A. Díaz‐García, Juan Casado   +12 more
wiley   +1 more source

Large-scale radio propagation path loss measurements and predictions in the VHF and UHF bands. [PDF]

Heliyon, 2021
Faruk N, Abdulrasheed IY, Surajudeen-Bakinde NT, Adetiba E, Oloyede AA, Abdulkarim A, Sowande O, Ifijeh AH, Atayero AA.   +8 more
europepmc   +1 more source

The two-frequency, bistatic radar-occultation method for the study of planetary ionospheres scientific reports no. 1 and no. 7 [PDF]

Method for study of planetary ionospheres based on radio wave propagation between earth and ...
Eshleman, V. R., Fjeldbo, G., Garriott, O. K., Smith, F. L., III   +3 more
core   +1 more source

Aspects of Favorable Propagation in Massive MIMO

, 2014
Favorable propagation, defined as mutual orthogonality among the vector-valued channels to the terminals, is one of the key properties of the radio channel that is exploited in Massive MIMO.
Larsson, Erik G., Marzetta, Thomas L., Ngo, Hien Quoc   +2 more
core   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Sudy of the Propagation of Decimeter Radiowaves in the Atmosphere of Venus with the Aid of AIS ''venera 4'' [PDF]

Radio wave propagation in Venus atmosphere based on approximating inhomogeneity of ...
Kolosov, M. A., Yakovlev, O. I., Yefimov, A. I.   +2 more
core   +1 more source

Updated galactic radio constraints on Dark Matter

, 2016
We perform a detailed analysis of the synchrotron signals produced by Dark Matter annihilations and decays. We consider different set-ups for the propagation of electrons and positrons, the galactic magnetic field and Dark Matter properties.
Cirelli, Marco, Taoso, Marco
core   +1 more source