Results 131 to 140 of about 2,744 (247)

Genetic and phenotypic variation in wood tiger moths from the Caucasus: insights into male warning color variation

Insect Science, EarlyView.
Coloration serves several fitness‐related functions, including thermoregulation, immunity, social signaling, sexual selection, and predator avoidance. Consequently, color polymorphism can have a significant impact on a species’ interactions with its environment, including its relationships with predators, prey, and potential mates. The wood tiger moth (
Juan A. Galarza, Ossi Nokelainen, Melanie N. Brien, Cristina Ottocento, Bibiana Rojas, Janne K. Valkonen, Tamar Chunashvili, Tõnis Tasane, Chris D. Jiggins, Johanna Mappes   +9 more
wiley   +1 more source

Designing a Morphing Wing for Fixed-Wing UAVs By IJISRT

International Journal of Innovative Science and Research Technology (IJISRT)
This project report details the original conceptualization, design, and analysis of a morphing wing structure for fixed-wing Unmanned Aerial Vehicles (UAVs). Our approach incorporates an octahedron cell structure coupled with the application of shape memory alloys(SMAs) to facilitate controlled wing morphing.
Ashwin Wankhede, Akshat Joshi, Pratham Kale, Harshvardhan Sandbhor, Krishna. B. Jadhav   +4 more
openaire   +1 more source

Female‐Biased Sexual Size Dimorphism and Its Potential Causes in Hairy‐Winged Bats

Integrative Zoology, EarlyView.
Based on the integration of molecular genetics, traditional and geometric morphology, and acoustic characteristics of hairy‐winged bats (a species that was historically misclassified into two species due to extreme craniodental divergence between the sexes) in multiple regions of China, we quantified the sexual size dimorphism (SSD) between males and ...
Yang Yue, Zefeng Huang, Yang Guo, Yi Wu, Yaqing Liao, Yibo Hu, Xiaoyun Wang, Wenhua Yu   +7 more
wiley   +1 more source

An Efficient SDOF Sweep Wing Morphing Technology for eVTOL-UAV and Experimental Realization

Drones
The presented study demonstrates that UAVs can be flown with a morphing wing to develop essential aerodynamic efficiency without a tail structure, which decides the operational cost and flight safety.
Palaniswamy Shanmugam, Parammasivam Kanjikovil Mahali, Samikkannu Raja   +2 more
doaj   +1 more source

Assessing the host plants of the invasive apricot aphid, Myzus mumecola (Hemiptera: Aphididae)

Agricultural and Forest Entomology, EarlyView.
We investigated the host plants of the invasive apricot aphid Myzus mumecola (Hemiptera: Aphididae), an emerging pest species in Europe, by combining molecular and ecological approaches. The winter host plant was confirmed as apricot by both methods.
Marta Chignola, Urban Spitaler, Hannes Schuler   +2 more
wiley   +1 more source

Morphing Wing Weight Predictors and Their Application in a Template-Based Morphing Aircraft Sizing Environment II [PDF]

, 2008
This report presents an approach for sizing of a morphing aircraft based upon a multi-level design optimization approach. For this effort, a morphing wing is one whose planform can make significant shape changes in flight - increasing wing area by 50% or
Skillen, Michael D., Crossley, William A.   +1 more
core   +1 more source

Democratising Multi‐Projector Displays

Computer Graphics Forum, EarlyView.
Spatially augmented reality (SAR) transforms large, surround, collaborative experiences out of VR/AR headsets to the real world by merging content from projectors with the physical environment. This detailed state‐of‐the‐art survey reports on the advancements in multi‐projector aggregation and hardware technologies used to achieve SAR and build ...
Aditi Majumder, Muhammad Twaha Ibrahim
wiley   +1 more source

Unsteady Numerical Simulation of Wing Deformation Using Body Surface Dynamic Mesh

Aerospace
Morphing aircraft, which are capable of adaptively changing their configurations in response to mission requirements and flight environments to achieve improved aerodynamic performance, have become an important direction in aircraft design.
Yue Zhang, Jianwen Zang, Jie Chen, Hongxing Su, Jun Liu   +4 more
doaj   +1 more source

A defensive symbiont and a plant virus confer direct and discrete phenotypes to a cereal aphid in a context‐dependent manner

Ecological Entomology, EarlyView.
Different BYDV‐PAV isolates exert contrasting effects on aphid fitness, including reproduction and winged production. Different BYDV‐PAV isolates have contrasting effects on aphid dispersal patterns. Aphid feeding behaviour is modulated by the presence of endosymbionts and plant viruses.
Daniel J. Leybourne, Andrea Ceribelli, Sharon E. Zytynska   +2 more
wiley   +1 more source

Morphing wing design of truss-braced-wing aircraft through aerodynamic shape optimization using the adjoint method [PDF]

It is still a challenge to evaluate the benefits of the morphing wing concept with a truss-braced wing wing–body–tail configuration. To address this problem, first, a fair baseline configuration is obtained with a multipoint optimization over six flight ...
Toropov, V, Li, L, Bai, J, Zhang, Y
core   +1 more source