Results 71 to 80 of about 1,090 (261)

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

Kuangchan 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, Qiankun WANG, Zhongmei SUN, Yuyun SU, Qihong XU   +4 more
doaj   +1 more source

Pertumbuhan Semai Gmelina dengan Berbagai Dosis Pupuk Kompos pada Media Tanah Bekas Tambang Emas (Growth of Gmelina Seedling with Various Compost Fertilizer in Ex-Gold Mining Land Media)

Jurnal Manajemen Hutan Tropika, 2011
Mining activities could have negative impacts on the environment if the tailings produced were not processedproperly. Non-economic tailing is a composite of various minerals (heavy metal) with sandy texture.
Basuki Wasis, Nuri Fathia
doaj   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

VIVID: A qPCR‐Based Platform for Sensitive and Quantitative In Vivo Tracking of Extracellular Vesicles

Advanced Functional Materials, EarlyView.
This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian, Talin Ebrahimian, Jonathan Miranda O'Connor, Janusz Rak, Stephanie Lehoux, Maryam Tabrizian   +5 more
wiley   +1 more source

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

Revista 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, Lovera Dávila, Daniel Florencio   +1 more
openaire   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

Advanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan, Matthew P. Confer, Rui Zhang, Siqing Wang, Jeffrey S. Moore, Rohit Bhargava, Ying Diao   +6 more
wiley   +1 more source

The research of gold processing from tailings of iron sand processing from South Kalimantan by using amalgamation methods in West Java

Journal of Physics: Conference Series, 2019
Abstract The purpose of this activity was to determine the characteristics of gold contained in iron sand mining tailings based on mineragraphic parameters, gold recovery by amalgamation method, and Hg used and wasted with tailings in the amalgamation process.
L Pulungan, P Pramusanto, F A Hermana
openaire   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

Analysis of Illegal Gold Mining (PETI) Impact on The Environment with TDS, TSS, Mercury and Cyanide Parameters in Water and Sediment of Cikaniki River

Aceh International Journal of Science and Technology
Gold production from artisanal mining extraction reaches 120 tons annually, providing significant environmental and economic impacts for the community. The processing method used triggers environmental pollution, because it produces tailings in the form ...
Awang Silvan Erusani, Nurmaya Arofah*, Sofatunida Sofatunida, Talitha Hasna Fauzi, Muhammad Andi Jabbar   +4 more
doaj   +1 more source

Research on Arsenic Form in the Gold Mine Tailings by Different Leaching Processes

Yankuang ceshi, 2014
Gold mine tailing is an important source of arsenic pollution. There are great differences in the arsenic forms of mine tailings formed by different smelting processes. Different arsenic form directly affects its migration and transformation in the environment.
CHEN Zhao-xin, LI Da-ming, LUO Xi-ming
openaire   +2 more sources