Results 131 to 140 of about 68,272 (311)

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Machine learning-based prediction method for open-pit mining truck speed distribution in manned operation

open access: yesMeitan kexue jishu
The purpose is to develop and apply a machine learning-based approach for the prediction and scheduling optimization of open-pit mining truck speeds. Open-pit mining is a significant method for coal mining, making it crucial to enhance the transportation
Changyou XU   +7 more
doaj   +1 more source

Investigating Continuous Time Open Pit Dynamics

open access: yes, 2008
Current mine production planning, scheduling, and allocation of resources are based on mathematical programming models. In practice, the optimized solution cannot be attained without examining all possible combinations and permutations of the extraction ...
Askari-Nasab, H.   +2 more
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

SURVEYING AND MAPPING OF OPEN PIT MINES

open access: yes, 2021
Surveys of open pit mines combine characteristics of engineering and topographic surveys. The surveyor provides guidance for miners to develop mining operations according to the earlier-established mine plan, then surveys the progress of mining and ...
CLAUDIU, BUZATU   +2 more
core  

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

Open pit mine at Blakeburn

open access: yes, 1983
Handwritten inscription on back reads: "The 'Open Pit'. Coalmont Collieries, Blakeburn.

core  

Corrosion pit depth extreme value prediction from limited inspection data [PDF]

open access: yes, 2004
Passive alloys like stainless steels are prone to localized corrosion in chlorides containing environments. The greater the depth of the localized corrosion phenomenon, the more dramatic the related damage that can lead to a structure weakening by fast ...
GUILLOU, Delphine   +4 more
core  

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Geotechnical study on Salkhit silver-gold open-pit mine

open access: yes
A comprehensive study of the ore deposit's proven reserves for open-pit mining, including the lowest working level, general slope of the pit walls, geotechnical conditions, and influencing factors, serves as a positive measure for preventing risks to ...
Boldbaatar Chultemgombo (21447399)   +1 more
core   +1 more source

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