Results 71 to 80 of about 21,753 (200)

Hybrid TOA/AOA Localization with 1D Angle Estimation in UAV-assisted WSN [PDF]

, 2020
Unmanned aerial vehicles (UAVs) are considered as a great solution for a flexible and rapid deployment of wireless sensor networks (WSN) in emergency scenarios.
Bouzerdoum, A., Christian Ritz, Abdesselam Bouzerdoum, Eryk Dutkiewicz, Anh Tuyen Le, L. C. Tran, D. Franklin, X. Huang, Le, AT, Le Chung Tran, E. Dutkiewicz, C. Ritz, Xiaojing Huang, Daniel Franklin   +13 more
core   +1 more source

Determining bismuth content in GaAsBi alloys by energy‐dispersive X‐ray spectroscopy: A case study with multiple sets of k*‐factors for analytical transmission electron microscopy

Journal of Microscopy, EarlyView.
Abstract Measuring the bismuth (Bi) content of ternary gallium arsenide bismuthide (GaAsBi) alloys is important because it sensitively influences their bandgap, and Bi is known to segregate vertically to the surface and sometimes also laterally during growth, so elemental distribution maps need to be quantified.
T. Walther
wiley   +1 more source

Tiếng anh chuyên ngành đầu máy toa xe

, 2021
Tiếng anh chuyên ngành đầu máy toa ...
ĐHCNGTVT
core   +1 more source

Syrinx anatomy and vocalizations in New World vultures (Aves: Cathartidae): Implications for avian vocal evolution

Journal of Anatomy, EarlyView.
New World vultures are the only avian clade proposed to lack a syrinx and have been described as non‐vocal. Using dissection, diceCT, and histology, we demonstrate that cathartid vultures have novel syringeal features that form a syrinx and vocal characterization reveals that they produce more complex vocalizations than previously reported.
Bradley A. Ibarra, Carmen A. Urban, Lucas J. Legendre, Julia A. Clarke   +3 more
wiley   +1 more source

Increase of the coordinate measurement accuracy in the multi-static radar in case of the receiving position placement on the aerial vehicle

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The dependence of the accuracy of the object's coordinates estimation on the relative position of transmitting and receiving points of the multi-position radar system was studied.
V. V. Legkostup, V. E. Markevich
doaj  

Mutation Trajectory of Omicron SARS-CoV-2 Virus, Measured by Principal Component Analysis

COVID
Since 2019, the SARS-CoV-2 virus has caused a global pandemic, resulting in widespread infections and ongoing mutations. Analyzing these mutations is essential for predicting future impacts.
Tomokazu Konishi, Toa Takahashi
doaj   +1 more source

Hormesis without evolution: plastic compensatory responses to herbicide drift in Oxalis stricta, a common weed of agriculture

New Phytologist, EarlyView.
Conceptual framework linking herbicide dose–response to plant fitness outcomes under sublethal exposure. Summary Herbicide drift exposes nontarget plants to sublethal agrochemical doses, yet its ecological and evolutionary consequences remain poorly understood.
Anah Soble Botran, Elise C. Kanefsky, Betania M. Cornejo, Olive A. Tatara, Regina S. Baucom   +4 more
wiley   +1 more source

Características agronómicas asociadas a la producción de fréjol (Phaseolus vulgaris L.) en seco en espaldera bajo dos regímenes de riego por goteo.

, 2022
La finalidad de esta investigación fue evaluar las características agronómicas asociadas a la producción de fréjol en seco en espaldera sembrados bajo dos regímenes de riego por goteo.
Jácome Gaibor, Toa Belén
core   +1 more source

Evaluation of self‐collected nasal, urine, and saliva samples for molecular detection of SARS‐CoV‐2 using an EUA approved RT‐PCR assay and a laboratory developed LAMP SARS‐CoV‐2 test

Immunity, Inflammation and Disease
As the SARS‐CoV‐2 virus spread throughout the world, millions of positive cases of COVID‐19 were registered and, even though there are millions of people already vaccinated against SARS‐CoV‐2, a large part of the global population remains vulnerable to ...
Ana Purcell‐Wiltz, Fernando Tadeu Zamuner, Karem Caraballo, Lorena De Jesus, Yaima Miranda, Denise Ortiz, Amanda García Negrón, Andrea Cortés Ortiz, Adriana Baez, Josefina Romaguera, Ivonne Jiménez, Alberto Ortiz, Jorge Acevedo, Liliana Viera, David Sidransky, Rafael Guerrero‐Preston   +15 more
doaj   +1 more source

UWB Joint TOA and DOA Estimation

, 2020
-This paper deals with the simultaneous estimation of Time of Arrival (TOA) and Direction of Arrival (DOA) in UWB systems considering multipath propagation.

core