Results 111 to 120 of about 191,242 (302)
The fluorescence of compounds containing manganese [PDF]
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1939 The objects of the present paper are (1) to study the fluorescence of some pure compounds of the transition element manganese, and (2) to investigate the fluorescence of a wide variety of solids to which manganese has been added in small traces. The term “added” implies heat treatments over a range of temperatures varying from 500 to 1300°
openaire +1 more source
Advanced Engineering Materials, EarlyView.Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao +3 more
wiley +1 more source
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Наука. Инновации. Технологии, 2022 Ntroduction: Long-term monitoring of the quality of surface waters in a specific area reveals regional features of the formation of the chemical composition of natural waters and the ranges of quantitative characteristics of the studied compounds of ...
F. Atabieva, S. Gekkieva
doaj
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
How vanadium and manganese compounds impact cardiac mitochondrial function
Frontiers in Chemical BiologyIntroductionVanadium and manganese are two biologically relevant redox-active first row transition metals. Both metals have been associated with protective and deleterious effects in the cardiovascular system depending on the biological context, chemical
Connor C. Dolan +7 more
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Heavy Metal Accumulation in Medicinal plants and Risk assessment
Наука. Инновации. Технологии, 2022 Introduction: Long-term monitoring of the quality of surface waters in a specific area reveals regional features of the formation of the chemical composition of natural waters and the ranges of quantitative characteristics of the studied compounds of ...
Y. Pelikhovich +3 more
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Method of detecting and counting bacteria in body fluids [PDF]
, 1973 A novel method is reported for determining bacterial levels in urine samples, which method depends on the quantitative determination of bacterial adenosine triphosphate (ATP) in the presence of non-bacterial ATP.
Chappelle, E. W., Picciolo, G. L.
core +1 more source
Advanced Engineering Materials, EarlyView.Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein +2 more
wiley +1 more source
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source