Results 31 to 40 of about 53,258 (285)

Noise Reduction of Open Cavities by Passive Flow Control Methods at Transonic Speeds using OpenFOAM

Havacılık ve Uzay Teknolojileri Dergisi, 2021
Flow over a cavity is one of the most intriguing problems in aeronautics. Although geometry is simple, the physics of cavity requires uttermost attention.
Oğuzhan DEMİR, Bayram ÇELİK, Kürşad Melih GÜLEREN   +2 more
doaj  

Transonic Galactic Outflows and Their Influences to the Chemical Evolution of Galaxies and Intergalactic Space

, 2014
We have categorized possible transonic solutions of galactic outflows in the gravitational potential of DMH and SMBH using the isothermal, spherically symmetric and steady model.
Igarashi, Asuka, Mori, Masao, Nitta, Shin-ya   +2 more
core   +1 more source

Advection-dominated accretion flows with causal viscosity [PDF]

, 2006
We present the basic equations and sample solutions for the steady-state global transonic solutions of the advection-dominated accretion flows (ADAFs) with a causal viscosity prescription.
Abramowicz, Acrobat, Becker, Gammie, Lu, Narayan, Paczynski, Papaloizou, R. Takahashi   +8 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Drag Reduction on the Basis of the Area Rule of the Small-Scale Supersonic Flight Experiment Vehicle Being Developed at Muroran Institute of Technology (Second Report)

Aerospace
A small-scale supersonic flight experiment vehicle named OWASHI is being developed at Muroran Institute of Technology as a flying testbed for verification of innovative technologies for high-speed atmospheric flights.
Kazuhide Mizobata, Taichi Mio, Katsuya Miyamoto   +2 more
doaj   +1 more source

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

Field-Relevant High Stokes Number Study of Particle Impacts in High-Speed Compressor via Engine Test

Aerospace
Exposure of propulsion gas turbines to inlet flow contaminated with dust, sand, or ash particulates can lead to a myriad of complex and interrelated damage modes that reduce engine operational life, increase maintenance costs, and pose a safety risk to ...
L. Boone Estes, Wing Ng, K. Todd Lowe, Gwibo Byun, Mark Caddick, Rui Qiao, Shuo Mao, Paige Brockway   +7 more
doaj   +1 more source

Stability of Transonic Shock Solutions for One-Dimensional Euler-Poisson Equations

, 2010
In this paper, both structural and dynamical stabilities of steady transonic shock solutions for one-dimensional Euler-Poission system are investigated.
B. Zhang, C.V. Pao, Chunjing Xie, D. Wang, D.P. Chen, F. Huang, G.-Q. Chen, G.Q. Chen, H. Li, I.M. Gamba, I.M. Gamba, J. Li, J. Li, J. Rauch, J. Rauch, J. Rauch, Jeffrey Rauch, M.D. Rosini, M.D. Rosini, P. Degond, P. Degond, P. Embid, P.A. Markowich, P.A. Markowich, S.-Y. Ha, S.-Y. Ha, T. Luo, T.P. Liu, T.P. Liu, T.P. Liu, Tao Luo, U.M. Ascher, W.-C. Lien, Y.-J. Peng, Z. Xin, Z. Xin, Zhouping Xin   +36 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Spectral Energy of High-Speed Over-Expanded Nozzle Flows at Different Pressure Ratios

Energies
This paper addresses the long-standing question of understanding the origin and evolution of low-frequency unsteadiness interactions associated with shock waves impinging on a turbulent boundary layer in transonic flow (Mach: 1.1 to 1.3).
Manish Tripathi, Sławomir Dykas, Mirosław Majkut, Krystian Smołka, Kamil Skoczylas, Andrzej Boguslawski   +5 more
doaj   +1 more source