Results 21 to 30 of about 796,137 (238)

Synthesis and Properties of Novel Unsymmetrical Donor Molecules Containing p-Acetoxy- or p-Hydroxyphenyl Units

open access: yesMolecules, 2006
We report the synthesis and properties of eight new tetrathiafulvalene (TTF) derivatives containing two different functionalities, prepared with the aim of obtaining stable organic materials.
Abdelkrim Gouasmia   +2 more
doaj   +1 more source

Split-Ring Resonator Based Sensor for the Detection of Amino Acids in Liquids

open access: yesSensors, 2023
Amino acids belong to the most important compounds for life. They are structural components of proteins and required for growth and maintenance of cells. Essential amino acids cannot be produced by the organism and must be ingested through the nutrition.
Kirsten J. Dehning   +3 more
doaj   +1 more source

Development and Testing of Intelligent Sensing and Precision Proportioning System of Water and Fertilizer Concentration

open access: yes智慧农业, 2020
Water and fertilizer integration technology can effectively improve nutrient utilization efficiency. However, the existing water and fertilizer machines have some shortcomings, such as huge cost, single fertilizer injection, need for cleaning water and ...
JIN Zhou   +6 more
doaj   +1 more source

Thermal and Electrochemical Properties of Ionic Liquids Bearing Allyl Group with Sulfonate-Based Anions—Application Potential in Epoxy Resin Curing Process

open access: yesMolecules, 2023
Sulfonate-based ionic liquids (ILs) with allyl-containing cations have been previously obtained by us, however, the present study aims to investigate the thermal, electrochemical and curing properties of these ILs.
Andrea Szpecht   +3 more
doaj   +1 more source

Is It Possible to Prepare a “Super” Anion-Exchange Membrane by a Polypyrrole-Based Modification?

open access: yesMembranes, 2023
In spite of wide variety of commercial ion-exchange membranes, their characteristics, in particular, electrical conductivity and counterion permselectivity, are unsatisfactory for some applications, such as electrolyte solution concentration.
Anton Kozmai   +5 more
doaj   +1 more source

Thermal conductivity measurement of liquids in a microfluidic device [PDF]

open access: yes, 2010
A new microfluidic-based approach to measuring liquid thermal conductivity is developed to address the requirement in many practical applications for measurements using small (microlitre) sample size and integration into a compact device.
M. R. Bown   +36 more
core   +1 more source

Analysis of Electromagnetic Properties of New Graphene Partial Discharge Sensor Electrode Plate Material

open access: yesSensors, 2022
Advanced sensing and measurement technology is the key to realizing the transparent power grid and electric internet of things. Meanwhile, sensors, as an indispensable part of the smart grid, can monitor, collect, process, and transmit various types of ...
Huiyuan Zhang, Zhensheng Wu
doaj   +1 more source

Properties of Anion Exchange Membranes with a Focus on Water Electrolysis

open access: yesMembranes, 2022
Recently, alkaline membrane water electrolysis, in which membranes are in direct contact with water or alkaline solutions, has gained attention. This necessitates new approaches to membrane characterization. We show how the mechanical properties of FAA3,
Hamza Khalid   +4 more
doaj   +1 more source

Theoretical Verification of Photoelectrochemical Water Oxidation Using Nanocrystalline TiO2 Electrodes

open access: yesMolecules, 2015
Mesoscopic anatase nanocrystalline TiO2 (nc-TiO2) electrodes play effective and efficient catalytic roles in photoelectrochemical (PEC) H2O oxidation under short circuit energy gap excitation conditions. Interfacial molecular orbital structures of (H2O)
Shozo Yanagida   +4 more
doaj   +1 more source

Structural and Electrotransport Properties of Perfluorinated Sulfocationic Membranes Modified by Silica and Zirconium Hydrophosphate

open access: yesMembranes, 2022
A correlation between changes in structural and electrotransport properties of membranes after modification by silica and zirconium hydrophosphate was established.
Svetlana A. Shkirskaya   +2 more
doaj   +1 more source

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