Results 141 to 150 of about 4,004,008 (323)
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley +1 more source
Universal Heisenberg uncertainty relations for all massless particles
We derive the uncertainty relations between position and momentum (or wavector) in a uniform way for all massless particles. As expected, the lower bound $\gamma_{\textrm{min}} = (1+\sqrt{1/4+2 h})$ in the uncertainty relation grows with the particle’s ...
Iwo Bialynicki-Birula +1 more
doaj +1 more source
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
Plastyczne Wyczerpanie Nośności Ustrojów Płytowo-Żebrowych. Cz. 2. Rozwiązania Statyczne.
This is the second part of a work of which the first part appeared in Rozprawy Inzynierskie, where the problem of exhaustion of the load carrying capacity of a bent ribbed plate structures was analysed for a kinematically admissible field of strain ...
M. Kwieciński
doaj
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov +8 more
wiley +1 more source
Defining the Consistent Velocity of Omnidirectional Mobile Platforms
The maximum linear (or translational) velocity achievable by an omnidirectional platform is not uniform as it depends on the angular orientation of the motion.
Elena Rubies, Jordi Palacín
doaj +1 more source
Positive Periodic Solution for Second-Order Singular Semipositone Differential Equations
We study the existence of a positive periodic solution for second-order singular semipositone differential equation by a nonlinear alternative principle of Leray-Schauder.
Xiumei Xing
doaj +1 more source
Sharp indistinguishability bounds from non-uniform approximations
We study the problem of distinguishing between two symmetric probability distributions over $n$ bits by observing $k$ bits of a sample, subject to the constraint that all $k-1$-wise marginal distributions of the two distributions are identical to each other. Previous works of Bogdanov et al.
openaire +4 more sources
Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley +1 more source
Weiss–Weinstein Bound of Frequency Estimation Error for Very Weak GNSS Signals
Tightness remains the primary goal in all modern estimation bounds. For very weak signals, tightness is enabled by appropriately selecting the prior probability distribution and bound family.
Xin Zhang +4 more
doaj +1 more source

