Results 91 to 100 of about 254,392 (284)

Base deformation’s features during deep foundation pit excavation

open access: yesAcademic journal Industrial Machine Building Civil Engineering, 2020
The problems of estimating the stress-strain state of the foundations during the deep foundation pits installation are considered. The results of finite element calculations in the plane formulation of the stability of the pit walls and the retaining structures' operation under dense urban development are presented.
Mykola Zotsenko, Yuriy Vynnykov
openaire   +1 more source

Phase diagram for nanostructuring CaF$_2$ surfaces by slow highly charged ions

open access: yes, 2012
Impacts of individual slow highly charged ions on alkaline earth halide and alkali halide surfaces create nano-scale surface modifications. For different materials and impact energies a wide variety of topographic alterations have been observed, ranging ...
Aumayr, F.   +8 more
core   +2 more sources

Effect of Implementing a Dashboard with or without a Best Practice Alert on HLA‐B*58:01 Testing Rates among Allopurinol Users at VA Medical Centers

open access: yesArthritis Care &Research, Accepted Article.
Objective The American College of Rheumatology recommends HLA‐B*58:01 allele testing before the initiation of allopurinol, specifically among Asian and Black/African American patients, due to their increased risk for severe hypersensitivity reactions.
Abimbola Fadairo‐Azinge   +6 more
wiley   +1 more source

Centrifugal model tests on characteristics of deep foundation pits in starting well of shield tunneling machine

open access: yesYantu gongcheng xuebao
In order to explore the stress, deformation and soil pressure distribution of the surrounding soils during the excavation process of deep foundation pits in starting well of the shield tunneling machine, two sets of centrifugal model tests are conducted ...
SUN Hui 1, LI Bo 1, WANG Zhipeng 2, WANG Shuai 1
doaj   +1 more source

Tripartite to Bipartite Entanglement Transformations and Polynomial Identity Testing

open access: yes, 2009
We consider the problem of deciding if a given three-party entangled pure state can be converted, with a non-zero success probability, into a given two-party pure state through local quantum operations and classical communication.
Eric Chitambar   +10 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Seepage Point Impact in Urban Rail Transit Station Foundation Pit Enclosure Structure on the Variation Law of Surrounding Groundwater Seepage Field

open access: yesChengshi guidao jiaotong yanjiu
Objective In terms of underground engineering construction accident causes, approximately 20% of foundation pit accidents are caused by water seepage through enclosure structures.
ZHANG Xuhai
doaj   +1 more source

Water Basin Effect of Cofferdam Foundation Pit

open access: yesApplied Sciences
This study addresses the water basin effect in the underwater sand layer of steel pipe pile cofferdams by integrating the concept from building foundation pits to cofferdam foundation pit analysis. A theoretical derivation is presented for the deformation evolution of steel pipe piles and bottom seals within the cofferdam pit.
Guofeng Li   +4 more
openaire   +2 more sources

Influence of vibrations on structures [PDF]

open access: yes, 2018
One type of occasional structural load is a seismic load. Earthquakes and blasts are typical sources of vibrations, but vibration generated during urban tunnel construction can represent a significant problem.
Kaláb, Zdeněk
core  

Uncertain Photometric Redshifts with Deep Learning Methods

open access: yes, 2016
The need for accurate photometric redshifts estimation is a topic that has fundamental importance in Astronomy, due to the necessity of efficiently obtaining redshift information without the need of spectroscopic analysis.
D'Isanto, Antonio
core   +1 more source

Home - About - Disclaimer - Privacy