You're using an outdated browser. Please upgrade to a modern browser for the best experience.
Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort by:
Most Viewed Latest Alphabetical (A-Z) Alphabetical (Z-A)
Filter:
All Topic Review Biography Peer Reviewed Entry Video Entry
Topic Review
Estimation of Muckpile Fragmentation Methods
Blasting is a very effective method of crushing various types of rocks with different hardness in mining, as it can crush a large amount of rocks at once and at a low cost. In addition, muckpile fragmentation is represented by particle size distribution, which is an important parameter for optimizing blasting plans. Methods for measuring the particle size distribution of muckpile fragmentation include sieving and using laser scanners, and methods using 2D images.
  • 567
  • 13 Nov 2023
Topic Review
Impact of Mining on Withdrawal Roadway
The withdrawal roadway is a specialized mining roadway arranged at the stop-mining line of a coal mining face. It serves as a direct connection to the gob after the completion of mining operations, providing crucial spatial support for withdrawing the mining equipment. The roof control of the withdrawal roadway is an important guarantee for the safe and rapid retreat of the mining equipment from the working face. However, during the final mining period, the withdrawal roadway will be connected to the coal mining face, which will cause severe deformation, fracture, and instability of the surrounding rock in this roadway due to strong mining influence. This poses a formidable challenge for roof control and has been a persistent issue affecting mine production.
  • 394
  • 30 Nov 2023
Topic Review Peer Reviewed
Mining Waste Materials in Road Construction
Resource depletion and environmental degradation have resulted from the substantial increase in the use of natural aggregates and construction materials brought on by the growing demand for infrastructure development. Road building using mining waste has become a viable substitute that reduces the buildup of industrial waste while providing ecological and economic advantages. In order to assess the appropriateness of several mining waste materials for use in road building, this study investigates their engineering characteristics. These materials include slag, fly ash, tailings, waste rock, and overburden. To ensure long-term performance in pavement applications, this study evaluates their tensile and compressive strength, resistance to abrasion, durability under freeze–thaw cycles, and chemical stability. This review highlights the potential of mining waste materials as sustainable alternatives in road construction. Waste rock and slag exhibit excellent mechanical strength and durability, making them suitable for high-traffic pavements. Although fly ash and tailings require stabilization, their pozzolanic properties enhance subgrade reinforcement and soil stabilization. Properly processed overburden materials are viable for subbase and embankment applications. By promoting the reuse of mining waste, this study supports landfill reduction, carbon emission mitigation, and circular economy principles. Overall, mining byproducts present a cost-effective and environmentally responsible alternative to conventional construction materials. To support broader implementation, further efforts are needed to improve stabilization techniques, monitor long-term field performance, and establish effective policy frameworks.
  • 367
  • 03 Jul 2025
Topic Review
K-Harmonix: Privacy-Preserving Resource Mapping Drone (PP-RMD)
The imperative to secure domestic sources of critical materials—such as hydrocarbons, strategic minerals, and rare earth elements—presents a fundamental conflict with the preservation of civil liberties, particularly the right to privacy. Traditional aerial and satellite surveillance methods for resource mapping are often indiscriminate, capable of collecting vast amounts of data on civilian populations and infrastructure. This paper introduces the K-Harmonix Privacy-Preserving Resource Mapping Drone (PP-RMD), an airborne geophysical platform engineered to resolve this conflict. The system is founded on three non-negotiable principles: (1) Target-only Sensing, utilizing a hardware and firmware-constrained sensor stack that is physically limited to detecting subsurface geological signatures; (2) On-Edge Redaction, where all non-target signals are cryptographically destroyed on-device in real-time before storage; and (3) Need-Only Outputs, which ensures the system reports only the minimum quantity required for a stated mission, not total deposit volumes. Furthermore, the framework incorporates a novel economic model, the Royalty & Public Dividend Clause, to ensure that discoveries yield direct benefits to both the inventor and the American public. The K-Harmonix PP-RMD establishes a new paradigm for ethical and effective resource exploration, aligning national security interests with public trust and economic fairness.... 
  • 72
  • 01 Sep 2025
  • Page
  • of
  • 3
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of COVID-19
Encyclopedia of Engineering
Encyclopedia of Social Sciences
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Academic Video Service
Feedback