Results 91 to 100 of about 1,803,392 (346)

Influence of rearing environment on development of perching and dustbathing behaviour in laying hens [PDF]

open access: yes, 2007
Studies have shown that perching and dustbathing behaviour in birds can be affected by how and when the behaviour develops. With the increasing trend away from cages and towards keeping laying hens in larger, more complex housing systems, it is important
Wichman, Anette
core  

Nature‐Inspired Design Strategies for Efficient Atmospheric Water Harvesting

open access: yesAdvanced Materials, EarlyView.
This review presents advances in bioinspired atmospheric water harvesting systems, emphasizing how structural motifs such as wettability gradients, directional transport, and hierarchical porosity have been translated into engineered fog‐collection and vapor‐sorption strategies for enhanced water uptake, accelerated transport, and energy‐efficient ...
Yunchan Lee, Shouhong Fan, Shu Yang
wiley   +1 more source

Between Sheds Migration: establish whether, and if they do how far birds migrate between field sheds on the Sheepdrove Organic Farm silvo-poultry production system [PDF]

open access: yes, 2004
Sheepdrove Organic Farm was concerned about the possibility of birds of different ages mixing within their silvo-poultry system resulting in variation in the bird weights at depletion. A trial was established to investigate whether birds did migrate and
Pearce, Bruce, Pegg, Vanessa
core  

Recent Progress in Memristor Array‐Based Neuromorphic Computing for on‐Chip Vector‐Matrix Multiplication

open access: yesAdvanced Materials Technologies, EarlyView.
Recent efforts of memristor array‐based hardware neuromorphic computing are discussed for efficient application of VMM on‐chip level in terms of circuit integration and actual application of AI algorithms. The parallel data processing principle of VMM operation is briefly reviewed, and hardware VMM is presented including convolutional transformation ...
Jingon Jang, Sang‐gyun Gi
wiley   +1 more source

Synthesis of Self‐Healing Microbeam by Superposition of Self‐Decelerating Corner‐Diffraction Beams

open access: yesAdvanced Photonics Research, EarlyView.
Quasi‐nondiffracting (QND) beams boast long‐range propagation and self‐healing capabilities but require complex beam‐forming platforms. In contrast, the photonic nanojets (PNJs) boast simple platforms but are utilized primarily for near‐field applications. This work aims to hybridize the QND and PNJ beam concepts with a view to realize microscale, self‐
Jinsu Yoon, Jaeyoun Kim, Yongtaek Hong
wiley   +1 more source

Spring migration of Ruffs Philomachus pugnax in Fryslân: estimates of staging duration using resighting data [PDF]

open access: yes, 2010
Seasonal bird migration involves long flights, but most time is actually spent at intermediate staging areas. The duration of stay at these sites can be evaluated with mark–recapture methods that employ day-to-day local encounters of individually marked ...
Hooijmeijer, Jos C.E.W.,   +3 more
core   +1 more source

The First Anti Poison Dog Unit in Bulgaria to Secure the Eagle and Vulture Populations Persistence

open access: yesПернатые хищники и их охрана, 2018
Poisons in ecological systems pose threat to a number of mammal and bird species at global scale (Zugasti, 2014, Brochet et al., 2017). This is recognized as the most severe threat to all vulture species worldwide (Botha et al., 2017) and at the same ...
Dobromir D. Dobrev, Nikolai G. Terziev
doaj  

Experimental Infection of North American Birds with the New York 1999 Strain of West Nile Virus

open access: yesEmerging Infectious Diseases, 2003
To evaluate transmission dynamics, we exposed 25 bird species to West Nile virus (WNV) by infectious mosquito bite. We monitored viremia titers, clinical outcome, WNV shedding (cloacal and oral), seroconversion, virus persistence in organs, and ...
N. Komar   +8 more
semanticscholar   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

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