Results 291 to 300 of about 531,630 (365)

Manganese Neurotoxicity and Familial Disorders of Manganese Transport

open access: yesAnnals of the Child Neurology Society, EarlyView.
ABSTRACT Manganese is the 12th most common element in the Earth's crust and is an essential industrial component. Biologically, this metal plays an important role as a constituent of numerous enzymes. While manganese is required for normal biochemical and physiological processes, manganese excess can lead to significant toxicity, particularly to the ...
Sidney M. Gospe Jr.
wiley   +1 more source

Plasma Production by Laser Ablation of Heavy Metals

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT An Nd:YAG focused laser operating at 1064 nm, 3 ns pulse width, 360 mJ pulse energy, is employed to irradiate heavy metals, such as Ta, W, Pt, Au, and Pb. The in‐vacuum irradiation produces an expanding plasma at the target surface which has high density, temperature, and kinetic energy of emitted ions. Ions have a velocity of the order of 104 
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

Analysis of squeezing‐induced failure in a water tunnel and measure of rehabilitation: A case study of Tishreen tunnel, Syria

open access: yesDeep Underground Science and Engineering, EarlyView.
Different failure modes observed in Tishreen tunnel include Floor heave, wall spalling, crashing of slab, and lining convergence reaching the failure limit. Abstract Squeezing phenomena can lead to severe loads in deep tunnels, especially in the presence of a low ratio of surrounding rock strength to overburden pressure.
Mohannad Mhanna, Hussein Hadi Hussein
wiley   +1 more source

Texturization and Dense Dislocations Boost Elastic Bendability of Metallic Thermoelectric Generator

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Both texturization and dense dislocations enabled by the cold‐rolling process achieve a significant enhancement in the elastic strain for the rolled films, ensuring a reservation of the initial transport properties even after 100 000 bending cycles.
Xinyi Shen   +5 more
wiley   +1 more source

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