Nondestructive Estimation of Hazelnut (Corylus avellana L.) Terminal Velocity and Drag Coefficient Based on Some Fruit Physical Properties Using Machine Learning Algorithms. [PDF]
Kabas O, Kayakus M, Moiceanu G.
europepmc +1 more source
Accurate Measurements of Free Flight Drag Coefficients with Amateur Doppler Radar [PDF]
Elya Courtney +2 more
openalex +1 more source
Wind tunnel tests on airfoil boundary control using a backward opening slot [PDF]
This report presents the results of an investigation to determine the effect of boundary layer control on the lift and drag of an airfoil equipped with a backward opening slot. Various slot locations, widths of opening, and pressures, were used.
Bamber, Millard J, Knight, Montgomery
core +1 more source
Superfluid drag of two-species Bose-Einstein condensates in optical lattices
We study two-species Bose-Einstein condensates in quasi two-dimensional optical lattices of varying geometry and potential depth. Based on the numerically exact Bloch and Wannier functions obtained using the plane-wave expansion method, we quantify the ...
A. Andreev +7 more
core +1 more source
Scalable Manufacturing of Roll‐to‐Roll Slot‐Die Coated Perovskite Solar Cells
Roll‐to‐roll (R2R) slot‐die coating is emerging as a scalable pathway for perovskite solar cells. This mini‐review summarizes advances in ink design, drying control, and electrode integration that enable high‐efficiency flexible devices and modules. Challenges in throughput, stability, and sustainable processing are outlined, guiding the translation of
Farshad Jafarzadeh +5 more
wiley +1 more source
Aerodynamic integration produces a vehicle shape with a negative drag coefficient. [PDF]
Salari K, Ortega JM.
europepmc +1 more source
Comparison of theoretical predicted longitudinal aerodynamic characteristics with full-scale wind tunnel data on the ATLIT airplane [PDF]
An analytical method is presented for predicting the lift coefficient, the pitching moment coefficient, and the drag coefficient of light, twin-engine, propeller-driven airplanes.
Griswold, M. +2 more
core +1 more source
Low-temperature spin Coulomb drag in a two-dimensional electron gas
The phenomenon of low-temperature spin Coulomb drag in a two-dimensional electron gas is investigated. The spin transresistivity coefficient is essentially enhanced in the diffusive regime, as compared to conventional predictions.
Gornyi, I. V., Yashenkin, A. G.
core +1 more source
Light‑Driven Propulsion of Graphene Aerogels in Microgravity
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab +10 more
wiley +1 more source
Using wind setdown and storm surge on Lake Erie to calibrate the air-sea drag coefficient.
The air-sea drag coefficient controls the transfer of momentum from wind to water. In modeling storm surge, this coefficient is a crucial parameter for estimating the surge height. This study uses two strong wind events on Lake Erie to calibrate the drag
Carl Drews
doaj +1 more source

