Results 31 to 40 of about 7,096 (199)
Precision planter monitoring system based on mobile communication network
IET Networks, EarlyView., 2022 Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley +1 more source
Preliminary evidence for one-trial social learning of vervet monkey alarm calling
Royal Society Open Science, 2022 How do non-human primates learn to use their alarm calls? Social learning is a promising candidate, but its role in the acquisition of meaning and call usage has not been studied systematically, neither during ontogeny nor in adulthood.
Adwait Deshpande +2 more
doaj +1 more source
Considerations for designing underwater acoustical playback experiments [PDF]
The Journal of the Acoustical Society of America, 1994 The continued high interest in the effects of man-made sounds on marine wildlife has resulted in increased use of playback experiments. In such experiments, the intent is often to simulate a larger more powerful source of sound, e.g., a drill ship, with a playback of a recording, but using a small portable source system such as a J-11 to play the sound
William T. Ellison, Karen S. Weixel
openaire +1 more source
Design and implementation of geographic information system with mobile terminal and 5G network
IET Networks, EarlyView., 2022 Abstract Remote insurance mainly completes quotation, insurance application and payment through the PC terminal and mobile terminal, and the premium directly enters the insurance account. This article takes remote insurance as an example. First, it analyses the requirements of the remote insurance and insurance system, and then collects data from the ...
Huijun Xiao, Tangsen Huang, Ensong Jiang
wiley +1 more source
Animals, 2023 Acoustic communication plays a vital role in passing or sharing information between individuals. Identifying the biological meaning of vocal signals is crucial in understanding the survival strategies of animals.
Meina Ma +5 more
doaj +1 more source
Two novel vocalizations are used by veeries (Catharus fuscescens) during agonistic interactions.
PLoS ONE, 2015 Avian vocalizations are common examples of the complex signals used by animals to negotiate during agonistic interactions. In this study, we used two playback experiments to identify agonistic signals in a songbird species with several acoustically ...
Kara L Belinsky +2 more
doaj +1 more source
Animals, 2018 We studied three calls of common marmosets, Callithrix jacchus, elicited in the context of food. Call A, but not B or C, had been described previously as a food call. We presented insects (live mealworms or crickets) and fruit (banana or blueberries) and
Lesley J. Rogers +2 more
doaj +1 more source
Structural-functional characteristics of two song types in Phylloscopus humei (Phylloscopidae)
Nature Conservation Research: Заповедная наука, 2023 Several songbird species use two singing modes, which are functionally different. The first mode is preferentially used at the beginning of the breeding cycle, and serves to attract females, while the second mode is used later in the season as well as ...
Svetlana G. Meshcheryagina +1 more
doaj +1 more source
Social Disruption Impairs Predatory Threat Assessment in African Elephants
Animals, 2022 The transmission of reliable information between individuals is crucial for group-living animals. This is particularly the case for cognitively advanced mammals with overlapping generations that acquire detailed social and ecological knowledge over long ...
Graeme Shannon +4 more
doaj +1 more source
Directional speakers as a tool for animal vocal communication studies
Royal Society Open Science, 2023 Audio playbacks are a common experimental tool in vocal communication research. However, low directionality of sound makes it hard to control the audience exposed to the stimuli.
Lily Johnson-Ulrich +5 more
doaj +1 more source