Perspectives on the structure and function of the avian respiratory system: functional efficiency built on structural complexity

JN Maina - Frontiers in Animal Science, 2022 - frontiersin.org
Among the air-breathing vertebrates, regarding respiratory efficiency, the avian respiratory
system rests at the evolutionary zenith. Structurally, it is separated into a lung that serves as …

A critical assessment of the cellular defences of the avian respiratory system: are birds in general and poultry in particular relatively more susceptible to pulmonary …

JN Maina - Biological Reviews, 2023 - Wiley Online Library
In commercial poultry farming, respiratory diseases cause high morbidities and mortalities,
begetting colossal economic losses. Without empirical evidence, early observations led to …

Numerical investigation of Tesla valves with a variable angle

P Hu, P Wang, L Liu, X Ruan, L Zhang, Z Xu - Physics of Fluids, 2022 - pubs.aip.org
A Tesla valve is a passive check valve but with no-moving parts. The unique diode nature of
Tesla valves makes them attractive for fluid control in many engineering fields, such as …

On the diodicity enhancement of multistage Tesla valves

P Wang, P Hu, L Liu, Z Xu, W Wang, B Scheid - Physics of Fluids, 2023 - pubs.aip.org
Tesla valve is a particular check valve that can be used as a fluidic diode, but has no moving
parts, and shows promising applications in macro-and microfluidic systems. Fluidic diode …

Reciprocal swimming at intermediate Reynolds number

NJ Derr, T Dombrowski, CH Rycroft… - Journal of Fluid …, 2022 - cambridge.org
In Stokes flow, Purcell's scallop theorem forbids objects with time-reversible (reciprocal)
swimming strokes from moving. In the presence of inertia, this restriction is eased and …

Elastohydrodynamic interactions in soft hydraulic knots

MV Paludan, B Dollet, P Marmottant… - Journal of Fluid …, 2024 - cambridge.org
Soft intertwined channel systems are frequently found in fluid flow networks in nature. The
passage geometry of these systems can deform due to fluid flow, which can cause the …

Geometry-induced rectification of looped oscillatory flows

R Ibanez, A Raghunandan, DH Kelley - Physical Review Fluids, 2023 - APS
In this study, we leverage geometry-induced asymmetries to rectify oscillatory flows and
induce net directional transport of fluid in a looped network. We demonstrate this valveless …

Birds breathe at an aerodynamic resonance

F Fainstein, SM Geli, A Amador, F Goller… - … Journal of Nonlinear …, 2021 - pubs.aip.org
We present a dynamical model for the avian respiratory system and report the measurement
of its variables in normal breathing canaries (Serinus canaria). Fitting the parameters of the …

Function of the Avian Respiratory System

JN Maina - Current Perspectives on the Functional Design of the …, 2023 - Springer
The gas exchange function of the avian respiratory system is explained. The following
important structural—and functional aspects are presented: the mechanisms of airflow …

Fluid Transport in Oscillatory Flows

RI Amador - 2023 - search.proquest.com
This thesis focused on the study of oscillatory flows in two special cases. First, it explored the
dynamics of peristaltic pumping and its role in the functioning of the biological auditory …