Results 121 to 130 of about 277,297 (279)

Experimental Investigations of Dynamic Response and Fatigue Damage Characteristics of Granite Under Multi-Level Cyclic Impacts

open access: yesApplied Sciences
Dynamic fatigue of rocks under repeated cyclic impact is a nonconservative property, as surrounding rocks in real environments subjects them to variable impact disturbances, and the degree of damage varies under different energy level loads.
Jiaming Yang   +4 more
doaj   +1 more source

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown   +8 more
wiley   +1 more source

Experimental Study on the Pre-Peak Mechanical and Seepage Characteristics of Granite

open access: yesApplied Sciences
The Sanshandao Gold Mine is currently in the deep mining stage. The ground pressure on the surrounding rocks is gradually becoming more considerable, and at the same time, threatened by the overlying seawater, the possibility of mine water inrush ...
Xinyan Zeng   +3 more
doaj   +1 more source

New Hampshire Voters Overwhelmingly Support Political Reform 10/07/13 [PDF]

open access: yes, 2013
New Hampshire residents believe that money and special interests are what influences Congress, not their constituents. Most Granite Staters believe that political reform is a necessary step to solve national problems and they are supportive of specific ...
Survey Center, UNH
core   +1 more source

Social Sustainability in Chemical Engineering: Concepts, Methodologies, Challenges, and Integration Strategies

open access: yesSustainable Development, EarlyView.
ABSTRACT Chemical engineering faces an increasing imperative to integrate sustainability principles beyond traditional economic and environmental considerations. The social dimension—encompassing impacts on human well‐being, equity, community health, labor practices, and ethical governance—represents a critical yet often underdeveloped pillar within ...
José M. R. C. A. Santos
wiley   +1 more source

Two in Three NH Residents Support Legalization of Marijuana For Recreational Use 3/5/2019 [PDF]

open access: yes, 2019
More than two-thirds of Granite Staters support legalizing marijuana for recreational use. Support has increased dramatically since 2013 and bi-partisan majorities now favor the policy.
UNH Survey Center
core   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

open access: yesSmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen   +12 more
wiley   +1 more source

A study on Mechanical Seepage Characteristics of Coal‐Rock Mass Under the Combined Action of Multiple Factors

open access: yesSafety Science and Technology, EarlyView.
Schematic diagram of a triaxial fluid–solid coupling device based on the mapping function. ABSTRACT In deep coal mining, the influence of temperature–pressure coupling on the mechanical properties of coal is a crucial factor inducing dynamic disasters.
Musen Gao, Heng Ma, Xiaoqi Wang, Ke Gao
wiley   +1 more source

Enhancing durability of steam‐cured precast concrete culverts using SCMs: A comparative study with delithiated beta spodumene

open access: yesStructural Concrete, EarlyView.
Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain   +3 more
wiley   +1 more source

New Hampshire Residents Divided on Northern Pass And Kinder Morgan Pipeline Projects 5/28/15 [PDF]

open access: yes, 2015
Despite being controversial and the subject of much publicity, New Hampshire residents are only somewhat familiar with the proposed Northern Pass and Kinder Morgan pipeline projects to bring new sources of electricity to the region.
Survey Center, UNH
core   +1 more source

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