Results 81 to 90 of about 141,345 (280)

Optimization of ecological and efficient restoration technology for green mines based on hesitant fuzzy TOPSIS

open access: yesScientific Reports
The geological conditions of mines are complex and diverse, and existing restoration methods may not be sufficient to meet the requirements for all types of mine rehabilitation. A study on the optimization of ecological restoration technologies for green
Bin Wang   +5 more
doaj   +1 more source

Geology [PDF]

open access: yes
Papers from private industry reporting applications of remote sensing to oil and gas exploration were presented. Digitally processed LANDSAT images were successfully employed in several geologic interpretations.
Rowan, L. C.   +3 more
core   +1 more source

Cost of exploration for metallic minerals in Alaska [PDF]

open access: yes, 1976
The high cost of exploration for metallic minerals in Alaska not only reflects a 20-50% increase in the cost of supplies, food and salaries over those "outside" but also some additional costs that are characteristic of most Alaskan exploration efforts.
Grybeck, D, Peek, B.C., Robinson, M.S.
core  

Platinum group element mineralization at Musongati (Burundi) : concentration and Pd-Rh distribution in pentlandite [PDF]

open access: yes, 2017
The mafic-ultramafic intrusions of the Karagwe-Ankole belt in Burundi are considered as a new potential source for platinum group elements (PGE). The intrusions have mainly been studied for their PGE potential with regard to PGE concentration, but the ...
Dewaele, Stijn   +2 more
core   +1 more source

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

open access: yesAdvanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray   +3 more
wiley   +1 more source

Characterization of stability and support force of loess caves in northwest China

open access: yesHeliyon
Numerous manually excavated loess caves are present within a cultural relic protection zone in the northwestern region of China. The collapse of these caves frequently leads to the cracking, tilting, and even collapse of ancient buildings above, posing a
Dongqiao Shao, Wenlun Zhang, Zhiming You
doaj   +1 more source

Improving edge finite element assembly for geophysical electromagnetic modelling on shared-memory architectures [PDF]

open access: yes, 2016
This work presents a set of node-level optimizations to perform the assembly of edge finite element matrices that arise in 3D geophysical electromagnetic modelling on shared-memory architectures.
Castillo Reyes, Octavio   +2 more
core   +1 more source

Multi‐Responsive Dendrimer‐Hyaluronic Acid Hydrogel With Lubricating and Immunoregulatory Functions for Synergistic Osteoarthritis Therapy

open access: yesAdvanced Functional Materials, EarlyView.
A hydrogel with dynamic cross‐links was formed by cross‐linking hyaluronic acid with curcumin‐preloaded, phenylboronic acid‐modified poly(amidoamine) dendrimers. This hydrogel exhibited excellent injectability and self‐healing ability, enabling controlled Cur release in response to low pH, high reactive oxygen species (ROS) generation, or mechanical ...
Junjie Liu   +9 more
wiley   +1 more source

Active Learning‐Accelerated Discovery of Fibrous Hydrogels with Tissue‐Mimetic Viscoelasticity

open access: yesAdvanced Functional Materials, EarlyView.
Active learning accelerates the design of fibrous hydrogels that mimic the viscoelasticity of native tissues. By integrating multi‐objective optimization and closed‐loop experimentation, this approach efficiently identifies optimal formulations from thousands of possibilities and decouples elasticity and viscosity. The resulting hydrogels offer tunable
Zhengkun Chen   +11 more
wiley   +1 more source

Feasibility study on manganese nodules recovery in the Clarion-Clipperton Zone

open access: yes, 2012
The sea occupies three quarters of the area on the earth and provides various kinds of resources to mankind in the form of minerals, food, medicines and even energy.
Agarwal, Baivau   +4 more
core  

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