Results 21 to 30 of about 318,672 (278)
Effects of stoichiometry, purity, etching and distilling on resistance of MgB2 pellets and wire segments [PDF]
, 2002 We present a study of the effects of non-stoichiometry, boron purity, wire diameter and post-synthesis treatment (etching and Mg distilling) on the temperature dependent resistance and resistivity of sintered MgB2 pellets and wire segments.
Bud’ko +12 more
core +2 more sources
Con-Ciencia Boletín Científico de la Escuela Preparatoria No. 3, 2023 La estequiometría se utiliza en nuestra vida cotidiana no solo en las industrias, nos permite identificar cuánta materia prima se necesita para que un producto quede en las mejores condiciones sin desperdiciar sustancias. La estequiometría se refiere a las relaciones entre átomos, moles y partículas elementales en una reacción química; por ejemplo, en
openaire +2 more sources
Superconducting tantalum disulfide nanotapes; growth, structure and stoichiometry [PDF]
, 2010 Superconducting tantalum disulfide nanowires have been synthesised by surface-assisted chemical vapour transport (SACVT) methods and their crystal structure, morphology and stoichiometry studied by powder X-ray diffraction (PXD), scanning electron ...
Blaha +32 more
core +1 more source
Ecological Stoichiometry [PDF]
, 2003 The quality of food resources is crucial for animal growth, development and populationdynamics. Therefore, limitations are posed on organisms because of food scarcity in specific nutrients.These limitations may shape ecological interactions and affect cycling of nutrients in the ecosystem.
Robert W. Sterner, James J. Elser
+5 more sources
Frontiers in Cellular Neuroscience, 2020 Interacting receptors at the neuronal plasma membrane represent an additional regulatory mode for intracellular transduction pathways. P2X4 receptor triggers fast neurotransmission responses via a transient increase in intracellular Ca2+ levels.
Paola Soto +6 more
doaj +1 more source
Warming effects on arctic tundra biogeochemistry are limited but habitat‐dependent: a meta‐analysis
Ecosphere, 2021 Arctic tundra consists of diverse habitats that differ in dominant vegetation, soil moisture regimes, and relative importance of organic vs. inorganic nutrient cycling.
Grace Pold +4 more
doaj +1 more source
Comparison of Learners’ Problem Solving Approaches and Success in Stoichiometry
Science Education International, 2019 The purpose of this study was to examine how learners’ problem-solving approaches and success changed from high school to graduate school. This case study included 15 participants who were purposefully selected regarding their grade levels.
Sevgi Aydin-Günbatar, Nesibe Kalender
doaj +1 more source
Stoichiometry of carbon, nitrogen, and phosphorus in wastewater from Romania
Romanian Journal of Ecology & Environmental Chemistry, 2021 Water resources crisis can lead to a new concept of wastewater treatment. Wastewater cannot be considered waste, but can be a renewable or non-renewable energy source. Nutrients from wastewater could be recycled and not disposed of.
Florinela Pirvu +5 more
doaj +1 more source
Sequential pulsed laser deposition of homoepitaxial SrTiO$_3$ thin films
, 2016 Control of thin film stoichiometry is of primary relevance to achieve desired functionality. Pulsed laser deposition ablating from binary-oxide targets (sequential deposition) can be applied to precisely control the film composition, offsetting the ...
Gariglio, S., Groenendijk, D. J.
core +2 more sources
MoleculesA systematic study has been conducted on barbiturate complexes of all five alkali metals, Li–Cs, prepared from metal carbonates or hydroxides in an aqueous solution without other potential ligands present, varying the stoichiometric ratio of metal ion to
William Clegg, Gary S. Nichol
doaj +1 more source