Results 161 to 170 of about 170,547 (339)

Hybrid electric haulage trucks for open pit mining

open access: yes, 2014
Hybrid Electric Vehicles (HEVs) improve fuel economy by taking advantage of the peak efficiency operating envelope of the Internal Combustion Engine (ICE), together with an energy storage system to supply drive power when the ICE has lower efficiency. They also attempt to minimize engine idling.
openaire   +1 more source

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner   +2 more
wiley   +1 more source

Assessment of the shovel-truck system operation quality at open-pit mines in Kuzbass [PDF]

open access: diamond, 2021
Anton Voronov   +3 more
openalex   +1 more source

“There Are Places Full of Beauty”: Desettling High School Students' Scientific Writing

open access: yesScience Education, EarlyView.
ABSTRACT This study contributes to desettling and expanding expectations about the forms of scientific language that belong in students' scientific writing. The primary empirical focus is the analysis of 52 high school student abstracts articulating community‐based investigations, submitted as part of their participation in a student conference in a ...
Alejandra Frausto Aceves
wiley   +1 more source

A Framework for Analyzing the Effects of Spring Load Restriction [PDF]

open access: yes
Spring Load Restrictions (SLR) impose load restrictions on heavy trucks during the spring thaw period. Although the policies have been implemented for many years, we are still unsure of their economic effects on truckers.
Brian Smalkoski   +4 more
core  

Sliding Doors: Frame Uptake and Rejection by Learners in a Museum‐Based Climate Learning Experience

open access: yesScience Education, EarlyView.
ABSTRACT Science education efforts that support public understanding of modern climate change are critically needed. However, implementing climate‐related learning experiences can be challenging, as public audiences tend to experience a wide range of understandings of and emotions around the issue. In light of these challenges, many scholars have posed
Lynne Zummo   +7 more
wiley   +1 more source

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