Results 131 to 140 of about 32,856 (312)
, 2023 Tato bakalářská práce se zabývá problematikou materiálů pro technologii Fused Deposition Modeling (FDM) v rámci 3D tisku plastových materiálů. FDM je stále více rozšířenou aditivní technologií, která nachází široké využití v průmyslu pro výrobu prototypů
Vojtěch Fiala
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Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source
Multifunctional modular FDM 3D printer
, 2019 Tato práce se zabývá problematikou 3D tiskáren, jejich rozdělení dle principu funkce a jejich konstrukcí. U FDM tiskáren jsou kromě tiskových materiálů uvedeny druhy pohybových systémů použitelných pro FDM 3D tisk a je diskutována možnost konverze 3D ...
Indra, Zdeněk
core +1 more source
Advances in Electrical and Electronic Engineering, 2004 Presented paper is based on authors experience on numerical methods of field solution, mostly magnetic. This paper, as the first one of prepared series, deals with mathematical apparatus and basic physical principles, as well as with possible short ...
Dusan Maga
doaj
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
BioResourcesThe top and bottom shells of fused deposition 3D-printed PLA models are exposed to the highest stresses. To improve the bending performance of PLA models under three-point bending conditions, the models were strengthened by a selective enhancement method.
Chen Wang +3 more
doaj
FDM Additive Manufacturing Fundamentals Orientation
, 2010 This instructor resource from Portland Community College provides information on designing a course on fused deposition modeling (FDM) additive manufacturing.
Kraft, Patrick
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang +3 more
wiley +1 more source
Finanziert durch das Bundesministerium für Forschung, Technologie und Raumfahrt (BMFTR) und die Europäische Union (NextGenerationEU), sowie das Ministerium für Wissenschaft, Forschung und Kultur (MWFK) des Landes Brandenburg.
openaire +2 more sources