Results 91 to 100 of about 3,510,886 (291)

Re-Processing Of Gold Tailings At Ariab Area North- East Of Sudan [PDF]

open access: yes, 2008
The main objective of this research is to extract the Gold from the tailings which are dumped at Ariab Mines North East of Sudan by using the processing technology. These tailings dumps amount about 2,500,000 ton and contain Gold between (1.1-1.4)g/t,
Mohammed, Mohammed Mnzool
core  

Dual‐Layer Conducting and Redox Polymer Bioanodes for Synergistic Enhancement of Microbial Extracellular Electron Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid PEDOT/Fc‐LPEI conducting/redox polymer bioanode synergistically improves microbial extracellular electron transfer (EET) in Shewanella oneidensis MR‐1. The dual‐layer interface delivers 18‐fold higher current output and 27‐fold greater charge collected than bare carbon felt, highlighting an effective strategy for high‐performance ...
Shenghan Gu   +4 more
wiley   +1 more source

Multi‐Level Saturation Current Encoding in Two‐Dimensional Ferroelectric Source‐Gated Transistors

open access: yesAdvanced Functional Materials, EarlyView.
A 2D ferroelectric source‐gated transistor (SGT) operates with a non‐volatile, multi‐level saturation current controlled by ferroelectric polarization. Operando electrostatic and photocurrent imaging link the current limitation to source‐side depletion, identifying saturation current as a programmable, read‐bias‐tolerant device parameter toward low ...
Joon‐Seok Kim   +3 more
wiley   +1 more source

Mercury Pollution Due to Small-Scale Gold Mining in the Philippines: An Economic Analysis [PDF]

open access: yes
The study reviews small-scale gold mining in the Philippines and assesses economically mercury pollution and other development problems of the industry.
Asirot, Jasminda, Israel, Danilo C.
core  

Geometallurgy applied to cyanide gold tailings in the Arequipa region and its subsequent processing by Gravimetry

open access: yesRevista del Instituto de investigación de la Facultad de minas, metalurgia y ciencias geográficas, 2023
La muestra de relave evaluada en este estudio pertenece a una planta concentradora en la región de Arequipa, que tiene una capacidad de 430 TMD, la cual procesa mineral aurífero proveniente de la minería artesanal. El beneficio de estos tipos de minerales se realiza mediante el proceso de cianuración, carbón en pulpa, desorción y refinería. El objetivo
Escalante Escalante, Joselyne Bridgette   +1 more
openaire   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

New Directions for Tailings Management

open access: yes, 2023
The global mining industry anticipates that societal demands will drive increased annual production rates, and the world-wide concern for the potential consequences from conventional tailings dam failure will drive increased scrutiny.
Nelson, Priscilla P.
core   +1 more source

Flotation Recovery Tests of Silver Minerals from a Cyanide Slag in Colombia

open access: yesKuangchan zonghe liyong
This is an article in the field of mineral processing engineering. The process of “SABC grinding – gravity separation – cyanidation leaching – INCO detoxification” were conducted on the gold ore in Colombia.
Shuibo CHEN   +4 more
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Assessment of mercury and natural radioactivity in sediments from a small-scale gold mining legacy tailings pond in Camarines Norte, Philippines

open access: yesJournal of Degraded and Mining Lands Management
Jose Panganiban, Camarines Norte, is notable for small-scale gold mining, which produces waste stored in tailings storage facilities such as tailings ponds.
Airah Sophia J. De Juan   +4 more
doaj   +1 more source

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