Results 91 to 100 of about 461,045 (411)
Immersed isogeometric Boundary Elements: A user friendly method for the 3-D elasto-plastic simulation of underground excavations [PDF]
arXiv, 2022 The immersed isogeometric Boundary Element Method is presented and applied to the simulation of underground excavations. Nonuniform rational B-splines (NURBS) are used for the accurate definition of complex geometries with few parameters. Immersed technology is applied to automatically generate cell meshes.
arxiv
Development of Parameters for Numerical Modeling of Geomechanical Systems "Excavation - rock mass - support" [PDF]
, 2017 The airway drift of “Trudovskaya” mine of “DTEK” company was chosen as an object of research because of strong effect of rock pressure and water influence in the excavation.
Gapeev, S.N. +3 more
core
Advanced Materials Interfaces, EarlyView.This article provides a comprehensive overview of electroless plating, covering its basic mechanisms, bath composition, operating parameters, and metal layer characterization. It also addresses recent advancements, current limitations, and potential improvements, as well as the technology's applications in various industries.
Na Kyoung Kim +4 more
wiley +1 more source
Real-Time Motion Planning of a Hydraulic Excavator using Trajectory Optimization and Model Predictive Control [PDF]
arXiv, 2021 Automation of excavation tasks requires real-time trajectory planning satisfying various constraints. To guarantee both constraint feasibility and real-time trajectory re-plannability, we present an integrated framework for real-time optimization-based trajectory planning of a hydraulic excavator. The proposed framework is composed of two main modules:
arxiv
Excavation Paperwork of Unit D Levels 1-4 from Penny (8BR158) [PDF]
, 2021 This file contain the field notes taken during phase II ...
McGill, Audrey +2 more
core +1 more source
Advanced Optical Materials, EarlyView.This study reveals the critical influence of film thickness and excitation wavelength on the ASE threshold in metal halide perovskites. By optimizing these factors, the ASE threshold is significantly reduced, providing key insights into optical confinement and carrier distribution for advancing electrically pumped perovskite lasers.
Yulin Mao +7 more
wiley +1 more source
(Pre) Iron Age Burials of Thandikudi, Tamil Nadu
Ancient Asia, 2015 Thandikudi, one of the major villages in the Lower Palani Hills occupies a unique position as this village was well connected by major trade routes. The archaeological vestiges unearthed here have clearly attested that it was
RaNa Kumaran, M Saranya
doaj +1 more source
Design-to-Robotic-Production of Underground Habitats on Mars [PDF]
arXiv, 2021 In order for off-Earth top surface structures built from regolith to protect astronauts from radiation, they need to be several meters thick. Technical University Delft (TUD) proposes to excavate into the ground to create subsurface habitats. By excavating not only natural protection from radiation can be achieved but also thermal insulation because ...
arxiv
Field Drawing of East Wall Profile of Unit E From Penny (8BR158) [PDF]
, 2022 This document is a field map drawing of the east wall profile of Unit E.
Lehman, Lauren, Stroup, Melissa
core +1 more source
Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%
Advanced Robotics Research, EarlyView.Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley +1 more source