Results 11 to 20 of about 59,556 (258)

Influence of shear reinforcement corrosion on the performance of under-reinforced concrete beams [PDF]

open access: yes, 2010
The in-service performance of reinforced concrete beams can be severely affected through cor-rosion of the steel reinforcement when it becomes subjected to harsh corrosive environments containing chlo-rides and carbon dioxide.
Brown, E. H.   +3 more
core   +1 more source

An Electrically Detonated Downhole Seismic Gun [PDF]

open access: yes, 1991
An electrically detonated downhole seismic gun (EDG) that will fire blank 8-guage shells underwater has been constructed and tested to 80m depth (hydrostatic pressures of 130 psi or 8.9 x 105 Pa).
Dougherty, Martin E.   +2 more
core   +2 more sources

Optimization Design for K-shaped Metal Seal Structure Based on Response Surface Method

open access: yesShiyou jixie, 2022
The sealing structure of K-shaped metal seal in tubing hanger of subsea Christmas tree is complex, it must be studied deeply by multi-factor analysis method.
Wang Zhanwen   +4 more
doaj  

A Versatile Shotgun Source for Engineering and Groundwater Seismic Surveys [PDF]

open access: yes, 1993
We describe an electrical seismic gun that is capable of firing 8-gauge blank black powder shells in a water-filled borehole under relatively high hydrostatic pressures.
Pelton, John R.
core   +2 more sources

Cold hydraulic expansion of oil well tubulars [PDF]

open access: yes, 2011
Peer ...
Akisanya, Alfred Rotimi   +3 more
core   +1 more source

Simulation Analysis of Sealing Characteristics of K-Shaped Metal Ring on Tubing Hanger

open access: yesShiyou jixie, 2021
To study the optimal precompression of the self-tightening metal sealing ring and its sealing performance affected by the pressure and temperature load of the working medium, a K-shaped metal seal ring on the tubing hanger is taken as an example.
田懿   +5 more
doaj  

Risk Analysis of Tubing Hanger Installation Based on Fuzzy Bayesian Network

open access: yesShiyou jixie, 2020
To address the inability of quantified analysis due to the lack of actual data during the risk analysis process of tubing hanger installation, a fault probability calculation method based on fuzzy Bayesian network system is proposed.
Liu Chao   +4 more
doaj  

Use of a right ventricular continuous flow pump to validate the distensible model of the pulmonary vasculature [PDF]

open access: yes, 2019
In the pulmonary circulation, resistive and compliant properties overlap in the same vessels. Resistance varies nonlinearly with pressure and flow; this relationship is driven by the elastic properties of the vessels. Linehan et al. (1982) correlated the
Bové, Thierry   +5 more
core   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

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