Results 61 to 70 of about 3,964,851 (289)

A wellbore fluid performance parameters–temperature–pressure coupling prediction model during the managed pressure cementing injection stage

Energy Science & Engineering
Managed pressure cementing (MPC) is a new technology based on managed pressure drilling, which has a greater advantage in facing narrow density window formations.
Jinlu Liu, Jun Li, Hongwei Yang, Hui Li, Gonghui Liu   +4 more
doaj   +1 more source

Geosynchronous magnetic field responses to fast solar wind dynamic pressure enhancements: MHD field model [PDF]

Annales Geophysicae, 2012
We performed global MHD simulations of the geosynchronous magnetic field in response to fast solar wind dynamic pressure (Pd) enhancements. Taking three Pd enhancement events in 2000 as examples, we found that the main features of the total field B ...
T. R. Sun, T. R. Sun, C. Wang, N. L. Borodkova, G. N. Zastenker   +4 more
doaj   +1 more source

Measurement of Radio-Frequency Radiation Pressure

, 2018
We perform measurements of the radiation pressure of a radio-frequency (RF) electromagnetic field which may lead to a new SI-traceable power calibration.
Artusio-Glimpse, Alexandra, Holloway, Christopher L., Kautz, Marc, Lehman, John, Ryger, Ivan, Simons, Matt T.   +5 more
core   +1 more source

Thrust/Drag Decomposition using Partial Pressure Fields

, 2023
57th 3AF Applied Aerodynamics Conference ...
Hart, Pierce L., Mutangara, Ngonidzashe E., Sanders, Drewan S., Schmitz, Sven   +3 more
openaire   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Importance of In-Plane Anisotropy in the Quasi Two-Dimensional Antiferromagnet BaNi$_{2}$V$_{2}$O$_{8}$

, 2007
The phase diagram of the quasi two-dimensional antiferromagnet BaNi$_{2}$V$_{2}$O$_{8}$ is studied by specific heat, thermal expansion, magnetostriction, and magnetization for magnetic fields applied perpendicular to $\mathbf{c}$. At $\mu_0H^{*}\simeq1.5$
C. Meingast, H. v. Löhneysen, J. Villain, K. Grube, P. Adelmann, P. Popovich, P. Schweiss, S. Drobnik, Th. Wolf, V. L. Berezinskii, V. L. Berezinskii, W. Knafo   +11 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Magnetic-Field-Induced Mott Transition in a Quasi-Two-Dimensional Organic Conductor

, 2004
We investigated the effect of magnetic field on the highly correlated metal near the Mott transition in the quasi-two-dimensional layered organic conductor, $\kappa$-(BEDT-TTF)$_{2}$Cu[N(CN)$_{2}$]Cl, by the resistance measurements under control of ...
Itou, T., Kagawa, F., Kanoda, K., Miyagawa, K.   +3 more
core   +1 more source

Velocity and Pressure Field of Spilling Breakers

Coastal Engineering 1980, 1980
The internal velocity and pressure fields of quasi-steady spilling breaking waves have been investigated experimentally. The internal flow fields are shown to be in qualitative agreement with a model proposed by Peregrine and Svendsen (1978). Furthermore a quantitative comparison is made with nonbreaking wave theories.
openaire   +4 more sources

Cis‐regulatory and long noncoding RNA alterations in breast cancer – current insights, biomarker utility, and the critical need for functional validation

Molecular Oncology, EarlyView.
The noncoding region of the genome plays a key role in regulating gene expression, and mutations within these regions are capable of altering it. Researchers have identified multiple functional noncoding mutations associated with increased cancer risk in the genome of breast cancer patients.
Arnau Cuy Saqués, Aracele Martinez‐Mendez, John Crown, Alex Eustace   +3 more
wiley   +1 more source