Results 31 to 40 of about 7,938,372 (253)

Fluidic Thrust, Propulsion, Vector Control of Supersonic Jets by Flow Entrainment and the Coanda Effect

Energies, 2022
Thrust, propulsion, vector control of supersonic jets has been applied to jet and rocket engines, ejectors, and other many devices. In general, there are two approaches to this type of control, namely mechanical moving systems and fluidic thrust vector ...
Toshihiko Shakouchi, Shunsuke Fukushima
doaj   +1 more source

Experimental Investigation of Liquid Holdup in a Co-Current Gas–Liquid Upflow Moving Packed Bed Reactor with Porous Catalyst Using Gamma-Ray Densitometry

ChemEngineering
This study explores the dynamics of liquid holdup in a lab-scale co-current two-phase upflow moving packed bed reactor, specifically examining how superficial gas velocity influences the line average external liquid holdup at a fixed superficial liquid ...
Ali Toukan, Ahmed Jasim, Vineet Alexander, Hamza AlBazzaz, Muthanna Al-Dahhan   +4 more
doaj   +1 more source

Geometric structure of parameter space in immiscible two-phase flow in porous media

Frontiers in Physics
In a recent paper, a continuum theory of immiscible and incompressible two-phase flow in porous media based on generalized thermodynamic principles was formulated (Transport in Porous Media, 125, 565 (2018)).
Håkon Pedersen, Alex Hansen
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Acceleration Independent Along-Track Velocity Estimation of Moving Targets [PDF]

, 2008
In the paper a method for along-track velocity estimation of moving targets is presented. This method exploits the along-track interferometric (ATI) phase ramp of a range compressed moving target signal between two or more receiving channels.
Stefan V. Baumgartner, Baumgartner, Stefan, Krieger, Gerhard, Gerhard Krieger   +3 more
core  

Prediction method of migration law and gas channeling time of CO₂ flooding front: A case study of G89-1 Block in Shengli Oilfield

Youqicang pingjia yu kaifa, 2022
CO2 gas channeling time prediction is of great significance for CO2 gas channeling prevention and enhanced oil recovery. Current studies rarely involve quantitative characterization of the gas channeling time.
CUI Chuanzhi, YAN Dawei, YAO Tongyu, WANG Jian, ZHANG Chuanbao, WU Zhongwei   +5 more
doaj  

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

On Moving Object Reconstruction By Moments [PDF]

, 2002
Recent research using statistical moments to describe moving shapes through an image sequence has led to an interest in reconstructing moving shapes from their moment description. This paper discusses how the moment description through a series of frames
Nixon, Mark S., Carter, John N., Prismall, Stuart P.   +2 more
core   +2 more sources

Thermodynamics-like Formalism for Immiscible and Incompressible Two-Phase Flow in Porous Media

Entropy
It is possible to formulate an immiscible and incompressible two-phase flow in porous media in a mathematical framework resembling thermodynamics based on the Jaynes generalization of statistical mechanics. We review this approach and discuss the meaning
Alex Hansen, Santanu Sinha
doaj   +1 more source

First Spaceborne SAR-GMTI Experimental Results for the Chinese Gaofen-3 Dual-Channel SAR Sensor

Sensors, 2017
In spaceborne synthetic aperture radar (SAR) sensors, it is a challenging task to detect ground slow-moving targets against strong clutter background with limited spatial channels and restricted pulse repetition frequency (PRF).
Chenghao Wang, Guisheng Liao, Qingjun Zhang   +2 more
doaj   +1 more source