Results 31 to 40 of about 4,619 (193)

Importance of woody patches and vegetation heterogeneity in Texas tortoise microhabitat use

open access: yesWildlife Biology, EarlyView.
Microhabitat sites provide important resources and thermal conditions to reptile species that can vary spatially and temporally. This study assessed Texas tortoise Gopherus berlandieri microhabitat use and its relationship with carapace temperature during their active (April–October) and inactive seasons (November–March) between January 2023 and ...
Camryn M. Kiel   +6 more
wiley   +1 more source

Design and Implementation of a Multi-Band Active Radar Calibrator for SAR

open access: yesRemote Sensing, 2019
Over the past decade, IECAS (Institute of Electronics, Chinese Academy of Sciences) has developed a set of L-, S-, C-, and X-band active radar calibrators that are deployed during the calibration campaigns for HJ1C synthetic aperture radar (SAR), Gaofen ...
Liang Li   +4 more
doaj   +1 more source

A proof of concept for linking individual identity to camera traps

open access: yesWildlife Biology, EarlyView.
Small mammal movements are difficult to monitor, both visually and with remote tracking devices, due to the animals' small body size and elusive behavior. Cameras deployed at fixed locations can provide continuous, non‐invasive records in natural habitats, yet camera‐derived indices remain sparsely validated and generally do not allow inference at the ...
Magne Neby
wiley   +1 more source

Optimized tracking for cooperative sensor systems in multipath environments [PDF]

open access: yesAdvances in Radio Science, 2008
In a cooperative sensor system for pedestrian protection, a pedestrian and other road users exchange data by means of radio frequency communication. In the proposed system, the pedestrian carries a transponder which is interrogated by a vehicle and sends
D. Schwarz, R. H. Rasshofer, E. M. Biebl
doaj  

Cross-Pol Transponder with Frequency Shifter for Bistatic Ground-Based Synthetic Aperture Radar

open access: yesRemote Sensing, 2018
Ground-based synthetic aperture radar (GBSAR) systems are popular remote sensing instruments for detecting the ground changes of landslides, glaciers, and open pits as well as for detecting small displacements of large structures, such as bridges and ...
Massimiliano Pieraccini, Lapo Miccinesi
doaj   +1 more source

Use of Numerical Methods for the Design of Thermal Protection of an RFID-Based Contactless Identification System of Ladles

open access: yesMetals, 2022
A method of contactless identification is proposed for steel ladles to eliminate manual inputs that negatively affect the monitoring system of ladles. It is an RFID (Radio Frequency Identification) method based on the principle of radio data transmission
Dalibor Jančar   +4 more
doaj   +1 more source

Assessing the Influence of Interference Competition on Ecologically Similar Species Threatened by Habitat Loss 评估干扰性竞争对受栖息地丧失威胁的生态相似物种的影响

open access: yesWildlife Letters, EarlyView.
We staged dyadic interaction trials between two kangaroo rat species threatened by habitat loss to test whether one species dominates in direct interactions in the field. We found that Stephens’ kangaroo rat (Dipodomys stephensi) residents and intruders were dominant over Dulzura kangaroo rat (Dipodomys simulans). These results suggest that D. simulans
Janine N. Straughan   +2 more
wiley   +1 more source

Experimental Evaluation of the Generalized Signal Droop Model With SNR Measurements Including Transponder Implementation Penalty

open access: yesIEEE Photonics Journal, 2021
We experimentally assess the accuracy of a constant output power generalized droop (COP-GD) model combined with transponder implementation penalty to predict transmission performance for single-core long-haul optical transmission systems operating at low
Viacheslav Ivanov   +5 more
doaj   +1 more source

Predicting the effects of milder winters on the energy and water balance of a warm‐temperate hibernator

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract At the foundation of a species' vulnerability to climate change are the linkages between its physiological capacity, microclimate exposure and behavioural decision‐making.
Sanjeev Baniya   +5 more
wiley   +1 more source

CT‐guided liver beacon transponder implantation

open access: yesPrecision Medical Sciences, 2021
Objective To investigate the method of CT‐guided beacon transponder implantation and precautions after implantation for liver malignant tumor. Methods CT‐guided beacon transponder implantation in three patients with liver malignancies was the first time ...
Yufeng Zhang   +5 more
doaj   +1 more source

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