Results 101 to 110 of about 21,340 (260)

Wetland-based passive treatment systems for gold ore processing effluents containing residual cyanide, metals and nitrogen species [PDF]

open access: yes, 2013
Gold extraction operations generate a variety of wastes requiring responsible disposal in compliance with current environmental regulations. During recent decades, increased emphasis has been placed on effluent control and treatment, in order to avoid ...
Loredo, J.   +3 more
core   +1 more source

High‐Voltage Cathode Materials for Sodium‐Ion Batteries: Advances and Challenges

open access: yesSmall, EarlyView.
This review explores the role of high‐voltage cathode materials in enhancing the performance of SIBs. It focuses on strategies to improve energy density, rate capacity, and stability, addressing challenges like phase transitions, metal migration, and electrolyte degradation.
Congqi Ren, Yulian Dong, Yong Lei
wiley   +1 more source

Highly fluorinated polyurethanes [PDF]

open access: yes, 1973
The reaction perfluorinated hydroxyl terminated polyether with diisocyanate to form polyurethane is discussed.
Rochow, S. E., Stump, E. C., Jr.
core   +1 more source

Cyano‐Borazine Photosensitizers for Dye‐Sensitized Solar Cells

open access: yesAdvanced Energy and Sustainability Research, Volume 6, Issue 5, May 2025.
This work provides a straightforward synthesis of tetracyano‐auinodimethane (TCNQ) and tetracyanoethylene (TCNE) derivative‐based organic sensitizers using borazine scaffolds. This design enhances solar harvesting capacity and reduces electron back transfer in devices.
Sanchari Chowdhury   +4 more
wiley   +1 more source

Fluorine containing polyurethane [PDF]

open access: yes, 1969
A polyurethane polymer prepared by reacting a hydroxy-terminated polyformal with an organic diisocyanate is ...
Trischler, F. D.
core   +1 more source

ACTIONS OF CYANATE [PDF]

open access: yesBritish Journal of Pharmacology and Chemotherapy, 1946
F. Schütz, K. M. Birch
openaire   +4 more sources

Measurements of Antenna Surface for Millimeter-Wave Space Radio Telescope [PDF]

open access: yes, 2010
In the construction of a space radio telescope, it is essential to use materials with a low noise factor and high mechanical robustness for the antenna surface.
Doi, Akihiro   +3 more
core   +1 more source

Criss-cross Cycloadditions on Ketazines Derived from Alicyclic Ketones

open access: yesMolecules, 2006
The reactivity of alicyclic ketazines in criss-cross cycloadditions was investigated. They react with potassium cyanate and ammonium thiocyanate in the presence of acetic acid to form spirocyclic perhydro[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-diones ...
Milan Potacek, Jiri Verner
doaj   +1 more source

Schemes Of Solid-phase Spectrophotometric Analysis Of Food Objects [PDF]

open access: yes, 2018
The aim of research is development of approaches to the development of schemes for microelement analysis of food objects. This will make it possible to monitor food quality by simple and affordable methods in factory laboratories.Based on data on the ...
Arseneva, L. (Larisa)   +2 more
core  

Oil and fat absorbing polymers [PDF]

open access: yes, 1977
A method is described for forming a solid network polymer having a minimal amount of crosslinking for use in absorbing fats and oils. The polymer remains solid at a swelling ratio in oil or fat of at least ten and provides an oil absorption greater than ...
Marsh, H. E., Jr.
core   +1 more source

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