Results 11 to 20 of about 786,868 (262)

Design of regulated ford on the roads of low traffic intensity at the crossing of torrential flows [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2002
Regulation works in small torrential streams disturb the natural flow regime and the structure of banks and riparian area. The streams are crossed by bridges and culverts.
Đeković Vojislav, Stefanović Bogdan
doaj   +1 more source

Effects of Small-Scale Gold Mining Tailings on the Underwater Light Field in the Tapajós River Basin, Brazilian Amazon

open access: yesRemote Sensing, 2017
Artisanal and Small-scale Gold Mining (ASGM) within the Amazon region has created several environmental impacts, such as mercury contamination and changes in water quality due to increased siltation. This paper describes the effects of water siltation on
Felipe de Lucia Lobo   +3 more
doaj   +1 more source

Hydraulics of smoothly streamlined Venturi channels of critical depth [PDF]

open access: yesE3S Web of Conferences, 2019
The article relates to the field of hydraulics and engineering hydrology and is devoted to a study of fluid flow in a non-flooded Venturi channel. The purpose of the work is improvement of methods for calculating profiles and hydraulic characteristics of
Zuikov Andrey, Suehtina Tatiana
doaj   +1 more source

The Effect of the Water Table on the Bearing Capacity of a Shallow Foundation

open access: yesApplied Sciences, 2022
Immersion is an important part of reservoir engineering investigation and evaluation. Determining the reasonable and effective burial depth of the critical immersion water table is one of the key scientific issues in the impact assessment of the bearing ...
Wenfeng Chen, Qichao Liu, Erlei Wang
doaj   +1 more source

Campbell penetration depth of a superconductor in the critical state [PDF]

open access: yesPhysical Review B, 2003
The magnetic penetration depth $λ(T,H,j)$ was measured in the presence of a slowly relaxing supercurrent, $j$. In single crystal $\mathrm{Bi_2Sr_2CaCu_2O_8}$ below approximately 25 K, $λ(T,H,j)$ is strongly hysteretic. We propose that the irreversibility arises from a shift of the vortex position within its pinning well as $j$ changes.
Prozorov, R.   +5 more
openaire   +2 more sources

Critical Fluctuations in Superconductors and the Magnetic Field Penetration Depth [PDF]

open access: yesPhysical Review Letters, 1996
The superconducting transition is studied within the one-loop renormalization group in fixed dimension $D=3$ and at the critical point. A tricritical behavior is found, and for $κ> κ_c$, an attractive charged fixed point, distinct from that of a neutral superfluid.
Herbut, Igor F., Tesanovic, Zlatko
openaire   +3 more sources

Critical Depth of Hard Brittle Materials on Nano Plastic Forming

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper reports on ductile to brittle transition of hard brittle materials in nano plastic forming process. Formability of some hard brittle materials, i.e., glasses, silicon and quartz wafers, were examined through a specially designed and developed ...
Masahiko YOSHINO   +3 more
doaj   +1 more source

Revisiting Sverdrup's critical depth hypothesis [PDF]

open access: yesICES Journal of Marine Science, 2015
Abstract Published more than 60 years ago in this Journal, the article in which Sverdrup proposed the concept of critical depth to explain the initiation of the spring bloom in the North Atlantic has accrued an exceptionally large number of citations and continues to be cited more than 50 times per year.
Shubha Sathyendranath   +2 more
openaire   +1 more source

Effect of arc–current and spray distance on elastic modulus and fracture toughness of plasma-sprayed chromium oxide coatings

open access: yesFriction, 2017
In this experimental study, chromium oxide powder was sprayed on a low-carbon steel substrate using the atmospheric plasma spray process. The current and standoff distances (SODs) were varied to study their effect on the fracture toughness of the ...
Simanchal Kar   +2 more
doaj   +1 more source

Experimental investigation of gabion inclined drops as a sustainable solution for hydraulic energy loss

open access: yesAin Shams Engineering Journal, 2021
Gabions are structures that control the erosion and scouring whilst provide an eco-friendly and sustainable solution, used also for energy loss. Despite a wide range of previous studies, different hydraulic aspects of gabions have not yet been understood
Rasoul Daneshfaraz   +4 more
doaj   +1 more source

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