Results 41 to 50 of about 3,377 (112)

Joint Design of the Spatial and of the Classic Symbol Alphabet Improves Single-RF Spatial Modulation

IEEE Access, 2016
A new joint spatial and classic symbol alphabet is designed for spatial modulation (SM)-based multiple-input multiple-output systems. The employment of multiple active antennas instead of a single active antenna is proposed for increasing the achievable ...
Pranav S. Koundinya, K.V.S. Hari, Lajos Hanzo   +2 more
doaj   +1 more source

Rapid Evolution of Super Equatorial Plasma Bubbles and X‐Pattern EIA Formation During Extreme Storm Conditions on 12 November 2025

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Extreme conditions during storms profoundly alter the evolution of equatorial plasma bubbles (EPBs), yet the key dynamics remains poorly understood. We document the rapid expansion, contraction, and decay of super EPBs in South America during the 12 November 2025 storm with Interplanetary Magnetic Field (IMF) Bz/By magnitude exceeding ∼50 nT ...
Shasha Zou, Lei Liu, Hang Liu, Anthea Coster, Robert Kerr, Jonas Souza, Angela Santos   +6 more
wiley   +1 more source

Integrated Evaluation of Contaminant Profiles, Detection Techniques, and Management Strategies for Tannery Sludge

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT This review article critically examines the environmental and health hazards of tannery sludge (TS), a complex by‐product of the leather tanning industry. TS is characterized by a diverse array of contaminants, including heavy metals like chromium, organic pollutants such as polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds ...
Yashar Aryanfar, Ali Keçebaş, Soheil Hassanzadeh, Arash Nourbakhsh Sadabad, Farhan Lafta Rashid, Shabbir Ahmad, Ahmed Hendy, Hafiz M. Irfan, Shaban Mousavi Ghasemlou, Julio Blanco Fernandez, Jorge Luis Garcia Alcaraz   +10 more
wiley   +1 more source

Anthropogenic Infrastructures Shape Brown Bear Movements in Human‐Modified Landscapes

Ecology and Evolution, Volume 16, Issue 3, March 2026.
Human activities are major drivers of changes in animal behaviour, resulting in diverse spatial and temporal activity patterns across species. In this study, we analysed telemetry data from brown bears in Finland, Slovakia and Romania, to compare how human infrastructure influences their movement behaviour.
Pino García‐Sánchez, Vincenzo Penteriani, María del Mar Delgado, Daniele Falcinelli, Ancuta Fedorca, Louise K. Gentle, Ilpo Kojola, Samuli Heikkinen, Slavomír Find'o, Michaela Skuban, Mihai Fedorca, Ovidiu Ionescu, Georgeta Ionescu, Ramon Jurj, Marius Popa, Andrés Ordiz, Jon E. Swenson, Antonio Uzal   +17 more
wiley   +1 more source

Precoded Generalized Spatial Modulation for Downlink MIMO Transmissions in Beyond 5G Networks

Applied Sciences, 2020
The design of multiple input multiple output (MIMO) schemes capable of achieving both high spectral and energy efficiency constitutes a challenge for next-generation wireless networks. MIMO schemes based on generalized spatial modulations (GSM) have been
João Pedro Pavia, Vasco Velez, Bernardo Brogueira, Nuno Souto, Américo Correia   +4 more
doaj   +1 more source

Late summer plateau pika spatial habitat use revealed by high‐resolution wildlife tracking and unmanned aerial vehicle data on the Qinghai–Tibet Plateau

Grassland Research, Volume 5, Issue 1, Page 24-34, March 2026.
Tiny “ecosystem engineers,” plateau pikas range across 1600 m², about two basketball courts, mixing soil and nutrients that sustain Tibet's fragile grasslands. Custom‐made trackers and drone imagery show dawn‐to‐dusk surface foraging and nested‐scale patch choices, offering fresh guidance for wildlife‐friendly grazing management.
Dan Li, Johannes M. H. Knops, Li Li
wiley   +1 more source

Optimized-Goppa Codes Based on the Effective Selection of Goppa Polynomials for Coded-Cooperative Generalized Spatial Modulation Network [PDF]

Radioengineering
This paper proposes a novel optimized-Goppa-coded cooperative generalized spatial modulation (OGCC-GSM) scheme for short-to-medium information block transmission.
C. Chen, F. F. Yang, D. K. Waweru
doaj  

Comparison of measurements of the outer scale of turbulence by three different techniques [PDF]

, 2004
We have made simultaneous and nearly simultaneous measurements of L0, the outer scale of turbulence, at the Palomar Observatory by using three techniques: angle-of-arrival covariance measurements with the Generalized Seeing Monitor (GSM), differential ...
Borgnino, Julien, Chanan, Gary A., Dekany, Richard, Lane, Benjamin F., Martin, Francois, Schock, Matthias, Troy, Mitchell, Ziad, Aziz   +7 more
core   +1 more source

Characterizing Ion‐Scale Fluctuations Around Dipolarization Fronts in Earth's Magnetotail

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract In the Earth's magnetotail bursty bulk flows are often associated with dipolarizing magnetic flux bundles. The leading edges of such earthward‐moving flux bundles are called dipolarization fronts (DF). In the present study we investigate the characteristics of ion‐scale oscillations embedded inside DFs, using observations from NASA's ...
M. Hosner, R. Nakamura, D. Schmid, E. V. Panov   +3 more
wiley   +1 more source

Precoding Aided Generalized Spatial Modulation With an Iterative Greedy Algorithm

IEEE Access, 2018
This paper divides antennas at the transmitter into several transmit antenna groups (TAGs) and extends the generalized spatial modulation (GSM) idea to a new precoding-aided multiple-input multiple-output system, which is referred to as precoding-aided ...
Yuwen Cao, Tomoaki Ohtsuki, Xue-Qin Jiang   +2 more
doaj   +1 more source