Publications associées à Histoire des mines d'or

A customized MOF-polymer composite for rapid gold extraction from water matrices

Wendy Lee Queen, Daniel Teav Sun, Shuliang Yang, Jun Li, Li Peng, Olga Syzgantseva

With the fast-growing accumulation of electronic waste and rising demand for rare metals, it is compelling to develop technologies that can promotionally recover targeted metals, like gold, from waste, a process referred to as urban mining. Thus, there is ...

AMER ASSOC ADVANCEMENT SCIENCE2023

Graph integration of structured, semistructured and unstructured data for data journalism

Angelos Christos Anadiotis, Jingmao You

Digital data is a gold mine for modern journalism. However, datasets which interest journalists are extremely heterogeneous, ranging from highly structured (relational databases), semi-structured (JSON, XML, HTML), graphs (e.g., RDF), and text. Journalists ...

PERGAMON-ELSEVIER SCIENCE LTD2022

You Tell, I Do, and We Swap until we Connect All the Gold Mines!

Pierre Dillenbourg, Barbara Bruno, Jauwairia Nasir, Utku Norman

The Project JUSThink has a double goal: (i), to help train the Computational Thinking skills of children with a collaborative, robot-mediated activity, (ii), to acquire insights about how children detect and solve misunderstandings, and what keeps them eng ...

2020

Electrochemical Co-Deposition of Gold and Carbon Nanocapsules from a Colloidal Suspension

Stefano Mischler

This paper shows the preparation of a gold suspension containing carbon nanocapsules and their co-deposition from the colloidal galvanic bath on a nickel electrode to obtain gold/nanocapsules composite coatings. The incorporation of the nanocapsules was co ...

ELECTROCHEMICAL SOC INC2019

One-step access to N-enoxyimides by gold-catalysed addition of N-hydroxyimides to terminal alkynes

Nicolai Cramer, Coralie Danielle Annick Duchemin

N-Enoxyimides have become attractive substrates for novel catalytic transformations, yet their tedious multi-step synthesis hampers full exploitation of their synthetic potential. We report a gold(I)-catalyzed protocol to access N-enoxyimides from simple a ...

2019

Rapid, Selective Extraction of Trace Amounts of Gold from Complex Water Mixtures with a Metal-Organic Framework (MOF)/Polymer Composite

Wendy Lee Queen, Emad Oveisi, Natalia Gasilova, Daniel Teav Sun, Shuliang Yang

With the ever-increasing production of electronics, there is an ensuing need for gold extraction from sources other than virgin mines. Currently, there are no technologies reported to date that can effectively and selectively concentrate ultratrace amounts ...

AMER CHEMICAL SOC2018

Mixed gold and platinum nanostructured layers for all-solid-state ion sensors

Giovanni De Micheli, Sandro Carrara, Irene Taurino, Danilo Demarchi, Francesca Criscuolo, Lucia Lobello

The great interest in portable and wearable monitoring systems has promoted in recent years a major expansion of all-solid-state Ion-Selective Electrodes (ISEs). Nanostructured Solid-Contacts (SCs) have shown a promising potential in order to eliminate the ...

IEEE2018

Microbial communities associated with uranium in-situ recovery mining process are related to acid mine drainage assemblages

Rizlan Bernier-Latmani, Pierre Rossi, Luiz Felippe De Alencastro, Thomas Coral

A large fraction (47%) of the world's uranium is mined by a technique called “In Situ Recovery” (ISR). This mining technique involves the injection of a leaching fluid (acidic or alkaline) into a uranium-bearing aquifer and the pumping of the resulting sol ...

2018

Gold-catalyzed domino cyclization-alkynylation reactions with EBX reagents: new insights into the reaction mechanism

Jérôme Waser, Paola Caramenti, Yifan Li

Gold-catalyzed domino processes constitute a useful alternative to C-H functionalization for the synthesis of functionalized (hetero)arenes. Herein, we report computational studies on the gold-catalyzed cyclization alkynylation of keto-allenes with ethynyl ...

2017

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Histoire des mines d'or

A customized MOF-polymer composite for rapid gold extraction from water matrices

“Please Ensure the Gate is Properly Closed”: Questioning the Swiss Presence in Apartheid South Africa Through the Swiss Social Club in Cape Town

Graph integration of structured, semistructured and unstructured data for data journalism

You Tell, I Do, and We Swap until we Connect All the Gold Mines!

Electrochemical Co-Deposition of Gold and Carbon Nanocapsules from a Colloidal Suspension

One-step access to N-enoxyimides by gold-catalysed addition of N-hydroxyimides to terminal alkynes

Rapid, Selective Extraction of Trace Amounts of Gold from Complex Water Mixtures with a Metal-Organic Framework (MOF)/Polymer Composite

Mixed gold and platinum nanostructured layers for all-solid-state ion sensors

Microbial communities associated with uranium in-situ recovery mining process are related to acid mine drainage assemblages

Gold-catalyzed domino cyclization-alkynylation reactions with EBX reagents: new insights into the reaction mechanism

Graph Chatbot

Chattez avec Graph Search

“Please Ensure the Gate is Properly Closed”: Questioning the Swiss Presence in Apartheid South Africa Through the Swiss Social Club in Cape Town

Graph integration of structured, semistructured and unstructured data for data journalism

A customized MOF-polymer composite for rapid gold extraction from water matrices

Electrochemical Co-Deposition of Gold and Carbon Nanocapsules from a Colloidal Suspension

You Tell, I Do, and We Swap until we Connect All the Gold Mines!

One-step access to N-enoxyimides by gold-catalysed addition of N-hydroxyimides to terminal alkynes

Gold-catalyzed domino cyclization-alkynylation reactions with EBX reagents: new insights into the reaction mechanism

Mixed gold and platinum nanostructured layers for all-solid-state ion sensors

Microbial communities associated with uranium in-situ recovery mining process are related to acid mine drainage assemblages

Rapid, Selective Extraction of Trace Amounts of Gold from Complex Water Mixtures with a Metal-Organic Framework (MOF)/Polymer Composite