Results 41 to 50 of about 133,464 (290)

Study of the Influence of Formation Conditions on Dyeability of Gel-Fibers Made from Copolymers of Acrylonitrile, Methyl Acrylate and Itaconic Acid

open access: yesVestnik of Vitebsk State Technological University, 2020
The aim of this work was to study the effect of the acid comonomer content and the spinning conditions on the coloring of gel fibers based on copolymers of acrylonitrile (AN), methyl acrylate (MA), and itaconic acid (ITA).
Natallia Pchelova   +3 more
doaj   +1 more source

Rapid Electroosmosis Measurements [PDF]

open access: yes, 1971
A cell has been designed and built that allows for rapid measurement of volume moved in a definite time by electroosmosis. The cell is simple to use and is not very elaborate.
Wear, James O.
core   +2 more sources

On the characterization of NaDEHP/n-heptane nonaqueous reverse micelles: The effect of the polar solvent [PDF]

open access: yes, 2015
The behavior of two polar solvents, ethylene glycol (EG) and dimethylformamide (DMF), entrapped in sodium bis-(2-ethylhexyl) phosphate (NaDEHP)/n-heptane reverse micelles (RMs) was investigated using dynamic light scattering (DLS), molecular probe ...
Chessa, Juana Josefa   +4 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Cryopreservation of Swamp Buffalo Semen in Skim Milk Yolk-based Diluent with Two Different Cryoprotectants

open access: yesTropical Animal Science Journal, 2019
The successful of artificial insemination (AI) in buffalo is still low. The quality of frozen semen determines the successful of AI program. Glycerol is widely used for cryopreservation of buffalo semen with unsatisfactory results due to its toxicity and
M. T. Herbowo   +3 more
doaj   +1 more source

Lamotrigine dimethylformamide sesquisolvate

open access: yesActa Crystallographica Section E Structure Reports Online, 2006
In the title compound, C9H7N5Cl2·1.5C3H7NO, the asymmetric unit consists of two crystallographically independent lamotrigine [systematic name: 3,5-diamino-6-(2,3-dichloro­phenyl)-1,2,4-triazine] and three dimethyl­formamide mol­ecules. In the crystal structure, N—H⋯N and N—H⋯O hydrogen bonds lead to the formation of R22(8) and R32(8) motifs.
Balasubramanian Sridhar   +1 more
openaire   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Dimethylformamide Impurities as Propylene Polymerization Inhibitor

open access: yesPolymers, 2023
This research study examined how the use of dimethylformamide (DMF) as an inhibitor affects the propylene polymerization process when using a Ziegler–Natta catalyst. Several experiments were carried out using TiCl4/MgCl2 as a catalyst, aluminum trialkyl as a cocatalyst, and different amounts of DMF. Then, we analyzed how DMF influences other aspects of
Joaquín Hernández-Fernández   +2 more
openaire   +4 more sources

Weld-bonded titanium structures [PDF]

open access: yes, 1976
Structurally stronger titanium articles are produced by a weld-bonding technique comprising fastening at least two plates of titanium together using spotwelding and curing an adhesive interspersed between the spot-weld nuggets.
Creedon, J. F., Vaughan, R. W.
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

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