Results 271 to 280 of about 5,144,321 (345)

Laser fenestration of the dorsal pharyngeal recess does not correct experimentally induced dorsal nasopharyngeal collapse in horses. [PDF]

Vet Surg
Jeong S, Bond S, Bayly W, Sole-Guitart A.   +3 more
europepmc   +1 more source

Cardiovascular Catastrophe in Hysteroscopic Surgery: A Case of Diagnostic Dilemma, Arrest, and Recovery. [PDF]

Cureus
Atlapure B, Swuro V, Bhattacharjee A, Khandelwal A, Malakar H, Tripathy S, G S, Karim HMR.   +7 more
europepmc   +1 more source

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Superlubricity Enabled by Pressure-Induced Friction Collapse.

The Journal of Physical Chemistry Letters, 2018
From daily intuitions to sophisticated atomic-scale experiments, friction is usually found to increase with normal load. Using first-principle calculations, here we show that the sliding friction of a graphene/graphene system can decrease with increasing normal load and collapse to nearly zero at a critical point.
Junhui Sun, Yanning Zhang, Zhibin Lu, Qunyang Li, Q. Xue, Shiyu Du, Jibin Pu, Liping Wang   +7 more
semanticscholar   +3 more sources

Hydrostatic Collapse Pressure and Radial Collapse Force Comparisons for Ultra-Deepwater Pipelines

Volume 6B: Pipeline and Riser Technology, 2014
In this paper the behavior and the relationship between hydrostatic collapse pressure and diametrically opposed radial compressive force for pipelines were analyzed. This study presents an introduction of a research work aimed to assess the pipeline collapse pressure based on the radial collapse force.
Marco Rosas, A. Souza, M. Rodrigues, Danilo Machado Lawinscky da Silva   +3 more
semanticscholar   +2 more sources

Research on the collapse pressure of an elliptical wellbore considering the effect of weak planes

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Owing to stress concentration and anisotropy, the actual shape of a borehole is oval instead of what is usually treated – circular. In this study, a collapse pressure model for an elliptical vertical wellbore is established. The influences of ellipticity
YuLin Chen, Zhou Liu, X. Zhang, Shiming He, D. Ma, Jun Zhou   +5 more
semanticscholar   +1 more source

Collapse pressures of biodegradable stents

Biomaterials, 2003
Biodegradable stent prototypes were produced from poly L-lactic acid polymers with different molecular weights. The effects of molecular weight, drug incorporation and stent design on the collapse pressure of the stents were evaluated. While molecular weights did not show a significant effect on the collapse pressure of the stents, drug incorporation ...
Subbu, Venkatraman, Tan Lay, Poh, Tjong, Vinalia, Koon Hou, Mak, Freddy, Boey   +4 more
openaire   +2 more sources

Cake Collapse in Pressure Filtration

Langmuir, 2001
Aqueous dispersions of latex particles have been aggregated by addition of Ca2+ ions and then filtered in a pressure filtration cell. The filtration cakes have been examined through small-angle neutron scattering, void volume fraction measurements, and permeate flux measurements.
Antelmi, D., Cabane, Bernard, Meireles, Martine, Aimar, Pierre   +3 more
openaire   +2 more sources

Collapse pressures of bilayered biodegradable stents

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2006
AbstractBiodegradable helicoidal stent prototypes made up of layers of poly‐L‐lactic acid (PLLA) and poly(L‐lactic‐co‐glycolic acid) (PLGA) polymers were fabricated by temperature conditioning the stents at different stages of fabrication. The process incorporated elastic memory, or self‐expandability in the stent, which is desirable to minimize stent ...
L P, Tan, Subbu S, Venkatraman, J F D, Joso, Freddy Y C, Boey   +3 more
openaire   +2 more sources

Ultrathin Cellulose Nanofiber Assisted Ambient‐Pressure‐Dried, Ultralight, Mechanically Robust, Multifunctional MXene Aerogels

Advances in Materials, 2022
Ambient‐pressure‐dried (APD) preparation of transition metal carbide/nitrides (MXene) aerogels is highly desirable yet remains highly challenging. Here, ultrathin, high‐strength‐to‐weight‐ratio, renewable cellulose nanofibers (CNFs) are efficiently ...
Na Wu, Yunfei Yang, Changxian Wang, Qilei Wu, Fei Pan, Runa Zhang, Jiurong Liu, Z. Zeng   +7 more
semanticscholar   +1 more source

Capillary Negative Pressure Measured by Nanochannel Collapse

Langmuir, 2010
A new method is presented to measure capillarity-induced negative pressure. Negative pressures of several bars have been measured for five different liquids (ethanol, acetone, cyclohexane, aniline, and water) over a range of surface tension. Capillary negative pressure was measured in 79 +/- 3 nm silica nanochannels on the basis of the determination of
Tas, Niels R., Escalante, Maryana, Honschoten, Joost W. van, Jansen, Henri V., Elwenspoek, Miko   +4 more
openaire   +4 more sources