Results 21 to 30 of about 2,231,763 (313)

Mapping the concentration changes during the dynamic processes of crevice corrosion by digital [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
The dynamic process of crevice corrosion during anodic dissolution of a crevice electrode in a 5.0 mmol dm-3 NaCl solution has been studied by digital holographic reconstruction.
HENGLEI JIA   +4 more
doaj  

In-line digital holography for the study of localized corrosion and dynamic processes of electrochemical reactions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
Digital holographic reconstruction has been used to map the transient concentration field within the diffusion layer, detect the dynamic processes of localized corrosion, such as pitting corrosion, crevice corrosion and scratch corrosion crack.
SHENHAO CHEN
doaj  

Dual-Sensing System for Monitoring Ion Concentration Change in Electrochemical Micro Machining

open access: yesIEEE Access, 2020
Currently, no reliable electrolyte concentration monitoring method exists for ultra-short pulsed electrochemical micromachining. A dual-sensing system for electrolyte concentration monitoring is proposed in this work.
Chuanjun Zhao, Lizhong Xu
doaj   +1 more source

Change in magnesium concentration in erythrocytes in fish under stress

open access: yesRegulatory Mechanisms in Biosystems, 2018
At present, the role of erythrocyte magnesium in the respiratory processes of fish (and other animals) under conditions of stress load is not known. This article presents the results of research on change in the concentration of magnesium in erythrocytes
R. A. Zaprudnova
doaj   +1 more source

Climate Change Increases Nitrogen Concentration in Rice With Low Nitrogen Use Efficiency

open access: yesEarth's Future, 2021
Growing evidence indicates that climate change has significant impacts on crop production. However, the spatial variability and extent of the impacts on N concentrations in crops have yet to be explicitly described, although N concentration is a critical
Yin Yulong   +5 more
doaj   +1 more source

CHANGE IN BLOOD GELSOLIN CONCENTRATION IN RESPONSE TO PHYSICAL EXERCISE

open access: yesBiology of Sport, 2013
Plasma gelsolin (pGSN) produced by muscle is an abundant protein of extracellular fluids capable of severing actin filaments and eliminating actin from the circulation. Additionally, pGSN modulates the cellular effects of some bioactive lipids.
Jan Górski   +6 more
doaj   +1 more source

Changes of Angiogenin Serum Concentrations in the Perinatal Period [PDF]

open access: yesPediatric Research, 1997
The polypeptide angiogenin, a normal constituent of human plasma, might be involved in endothelium homeostasis, angiogenesis, and neovascularization accompanying various diseases. This study aimed at determining angiogenin serum concentrations in the perinatal period of healthy newborns and at forming a baseline for this protein, which in the future ...
MalamitsiPuchner, A   +4 more
openaire   +3 more sources

Changes of Concentrations of Elements in Deciduous Teeth with Age [PDF]

open access: yesBiological Trace Element Research, 2013
The aim of this study was to describe the issue of changes in the concentration of some elements (Mn, Fe, Mg, Cu, K, Cr, Pb, Cd, and Ca) in the mineral composition of deciduous teeth and to answer the question whether there was a tendency to change the metal concentration, depending on children's age.
Agnieszka Fischer   +2 more
openaire   +2 more sources

Changes in male salivary testosterone concentration with age [PDF]

open access: yesInternational Journal of Andrology, 1981
Using a specific and sensitive radioimmunoassay for testosterone, the concentration of the steroid has been determined in samples of saliva taken from men of various ages. The results clearly show that the mean salivary testosterone concentration, which related to the plasma‐free, non‐protein‐bound steroid concentration, falls with advancing age from ...
G F, Read   +3 more
openaire   +2 more sources

Concentration on knowledge and change management at metallurgical company [PDF]

open access: yesMetalurgija, 2008
The subject of this paper is an analysis of one of the most crucial aspects of the contemporary business, which is knowledge and change management. Competition on the market is more and more stronger.
Gajdzik, B.
doaj  

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