Can Sulfur-Containing Small Systems Enhance the Photoluminescence and Stability of the Blue-, Green- and Yellow-Emitting Perovskite Nanocrystals? A Case Study with Sodium Thiosulfate

2021 ◽  
Author(s):  
Rajesh Kumar Gautam ◽  
Somnath Das ◽  
Anunay Samanta
Keyword(s):  
Sodium Thiosulfate ◽  
Small Systems ◽  
Perovskite Nanocrystals ◽  
Sulfur Containing

scholarly journals Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

2018 ◽  
Vol 10 (10) ◽  
pp. 3677 ◽  
Author(s):  
Andrzej Bak ◽  
Violetta Kozik ◽  
Paulina Dybal ◽  
Slawomir Kus ◽  
Aleksandra Swietlicka ◽  
...  
Keyword(s):  
Corrosion Potential ◽  
State Of The Art ◽  
Steel Corrosion ◽  
Pilot Scale ◽  
Electrochemical Technique ◽  
Attractive Alternative ◽  
Equipment Corrosion ◽  
The Impact ◽  
Sulfur Containing

The sulfur-containing derivatives and their metabolites, regarded as ‘old devils of green’ chemistry, constitute a relevant class of air/water/soil contaminants in over-polluted world. In fact, some industrially-engineered solvents have become environmentally unfavorable. An attractive alternative to commonly used industrial liquids is sulfolane (C4H8SO2), an anthropogenic medium. The main objective of this paper is the comprehensive review focusing mainly on the state-of-the-art aspects of the sulfolane synthesis, application of sulfolane as an extractive solvent due to its ‘unique’ physicochemical properties as well as the potential of sulfolane to cause equipment corrosion and subsequent spills. The potential risk for groundwater contamination, danger for human health and ways of sulfolane biodegradation were briefly reviewed as well. Interestingly, the analysis performed on data stored in the Reaxys database revealed an alternating tendency of waxing and waning interest in sulfolane during the space of the last fifty years. Moreover, the primary goal of the presented case study was to verify applicability of industrial, multi-electrochemical technique for reliable detection of corrosion in low conductive process fluids. Several aspects of corrosion measurement including the impact of process parameters (temperature) and impurities (oxygen and chlorides) on stainless steel corrosion in pure sulfolane were investigated briefly.

UPLC-QTOF-MS/MS-guided isolation and purification of sulfur-containing derivatives from sulfur-fumigated edible herbs, a case study on ginseng

2018 ◽  
Vol 246 ◽  
pp. 202-210 ◽  
Author(s):  
Li Zhang ◽  
Hong Shen ◽  
Jun Xu ◽  
Jin-Di Xu ◽  
Zhen-Ling Li ◽  
...  
Keyword(s):  
Isolation And Purification ◽  
Sulfur Containing

252: Calciphylaxis Case Study With Response to Sodium Thiosulfate Treatment

2010 ◽  
Vol 55 (4) ◽  
pp. B94
Author(s):  
Megan Robinson ◽  
Mike Francis ◽  
Hanna Mawad
Keyword(s):  
Sodium Thiosulfate

A basic bottom-up approach for small systems of safe-water supply: a decentralized case study in Uganda

2014 ◽  
Vol 64 (1) ◽  
pp. 105-116
Author(s):  
Marco Andreolli ◽  
Mattia Giovannini ◽  
Francesco Fatone ◽  
Magdalen Kyamunyogonya ◽  
Jane Yatuha
Keyword(s):  
Water Supply ◽  
Bottom Up ◽  
Small Systems ◽  
Safe Water

scholarly journals Simulation-Based Analysis of Hydrometallurgical Processes. Case Study: Small-Scale Gold Mining in Ecuador

Minerals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 534
Author(s):  
Santiago D. Salas ◽  
Yris González ◽  
Pamela Cango ◽  
Jean Carlos Gómez ◽  
Ronald Koepke ◽  
...  
Keyword(s):  
Gold Mining ◽  
Sodium Thiosulfate ◽  
Sodium Cyanide ◽  
Stochastic Simulations ◽  
Mercury Removal ◽  
Small Scale ◽  
Computing Environment ◽  
Key Recovery ◽  
Simulation Based

In this work, two hydrometallurgical processes for gold recovery are explored for a small-scale gold mining case study located at Ponce Enriquez, Azuay, Ecuador. The hydrometallurgical systems consider the use of sodium cyanide and sodium thiosulfate as leaching agents, with and without the incorporation of a subsystem for residual mercury removal. The proposed processes are modelled using the commercial simulator PRO/II interconnected with a Python scientific computing environment for performing stochastic simulations. Monte Carlo simulations, in which the conversion of the main units and the prices of gold vary following a random uniform distribution, permit observing the effects of these uncertainties on key recovery and economic indicators. The results facilitate the correlation between the inputs and outputs of interest as well as the visualization of the outputs variability for an adequate assessment of the systems under study by following a technical and social responsibility approach.

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

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