Results 111 to 120 of about 5,748 (245)
Interpreting Barth's Eschatology: An Eco‐Theological Reappraisal
International Journal of Systematic Theology, EarlyView.Abstract Critical eco‐theologians do not consider Karl Barth's theology of creation helpful in addressing the contemporary ecological crisis. In this article, I explore a way to interpret Barth's theology that could lead to a fruitful eco‐theological perspective.
Othniël de Jong
wiley +1 more source
Efficacy of Flapping-wing Flight Via Dual Piezoelectric Actuation
, 2022 A novel piezoelectric-actuated wing system featuring dual actuators for increased wing control is presented and evaluated for its forward-flight characteristics via theoretical modeling and physical wind tunnel testing. Flapping wing aerial systems serve
O\u27Rourke, Quinn Andrew
core
State-space aerodynamic model reveals high force control authority and predictability in flapping flight. [PDF]
J R Soc Interface, 2021 Bayiz YE, Cheng B.
europepmc +1 more source
Journal of Anatomy, EarlyView.The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira +6 more
wiley +1 more source
How oscillating aerodynamic forces explain the timbre of the hummingbird's hum and other animals in flapping flight. [PDF]
Elife, 2021 Hightower BJ +7 more
europepmc +1 more source
Journal of Anatomy, EarlyView.Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley +1 more source
Domestic egg-laying hens, Gallus gallus domesticus, do not modulate flapping flight performance in response to wing condition. [PDF]
R Soc Open Sci, 2021 León BM +5 more
europepmc +1 more source
The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds
Journal of Anatomy, EarlyView.The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley +1 more source
Flapping Wing Flight in Turbulence
, 2017 Flapping wing flight always interests people, scientists have devoted years trying to figure out the principle of flapping wing flight as well as inventing flapping wing applications.
Yan, Bixing
core
New Phytologist, EarlyView.Morphospace position and phylogenetic placements of Trimeriantha monopolyada. Summary Floral structure is a key aspect of angiosperm diversity. Recent research revealed that significant floral disparity was already present in the Cretaceous. However, our understanding of early floral diversity remains limited, as it is directly dependent on the fossil ...
Xieting Wu +7 more
wiley +1 more source