Results 61 to 70 of about 5,478,026 (255)

A Mathematical Model for RNA 3D Structures

open access: yesMathematics
The computational prediction of RNA three-dimensional (3D) structures remains a significant challenge, largely due to the limited understanding of RNA folding pathways.
Sixiang Zhang, Liming Cai
doaj   +1 more source

On Mathematical Descriptions of Uncertain Parameters in Engineering Structures

open access: yesArchives of Civil Engineering, 2018
Civil engineering is one of the many fields of occurrences of uncertain parameters. The present paper in an attempt to present and describe the most common methods used for inclusions of uncertain parameters.
Pełczyński J.
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

open access: yesAdvanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti   +4 more
wiley   +1 more source

A Framework for an Inferential Conception of Physical Laws

open access: yesPrincipia: An International Journal of Epistemology, 2019
We advance a framework for an inferential conception of physical laws, addressing the problem of the application of mathematical structures to the relevant structure of physical domains. Physical laws, we argue, express generalizations that work as rules
Cristian Soto, Otávio Bueno
doaj   +1 more source

Patterning during free play - different materials prompt different mathematical structures

open access: yes, 2021
Lüken M. Patterning during free play - different materials prompt different mathematical structures.
Lüken, Miriam
core  

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Mathematical Modeling of Temperature Field of Multilayer Enclosure Structures

open access: yesMATEC Web of Conferences, 2016
The mathematical model of heat exchange process through multilayer enclosure structure is constructed. Herein infiltration and heat-conducting inclusions are taken into account.
Aksenov Boris   +4 more
doaj   +1 more source

SELECTION OF STRUCTURES OF THE ACTIVATED MINERAL POWDERS WITH USE OF A METHOD OF PLANNING OF EXPERIMENT

open access: yesВестник СибАДИ, 2017
With use of a method of mathematical planning of experiment structures are picked up and mathematical models of properties of the activated mineral powders on the basis of ashes-ablation depending on the expense of activating additives are received ...
V. D. Galdina, M. S. Chernogorodova
doaj   +1 more source

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