Results 81 to 90 of about 132,836 (258)
A STUDY OF IMAGE AUTOCORRELATION AS A METHOD TO CHARACTERIZE POROSITY AND ESTIMATE PERMEABILITY
CT&F Ciencia, Tecnología & Futuro, 2000 Ioannidis, et al., published a statistical methodology for analyzing of porous microstructure to estimate permeability in the Journal of Petroleum Science & Engineering.
G. E COBALEDA
doaj
The performance of a porous ceramic hydrostatic journal bearing
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2009 The performance of a porous-ceramic hydrostatic journal bearing manufactured by the starch consolidation (SC) technique has been examined using a highly instrumented test rig. The results have been compared with those of a 5-recess hydrostatic bearing of the same size and comparable design, under the same testing conditions.
Durazo-Cardenas, Isidro +2 more
openaire +3 more sources
Demonstration of a family of X‐ray dark‐field retrieval approaches on a common set of samples
Journal of Synchrotron Radiation, EarlyView.This study aims to guide users of dark‐field imaging in selecting the most suitable technique for their imaging goals. To this end, we provide a summary table and highlight opportunities for future research into the sources of dark‐field contrast across emerging methods.There are various imaging setups capable of capturing dark‐field images, each with ...
Samantha J. Alloo +5 more
wiley +1 more source
Static characteristics of porous journal bearings with anisotropic permeability.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1988 The static characteristic of oil filled porous journal bearings with anisotropic permeability are theoretically investigated. Considering anisotropic permeability, the Reynolds equation for the oil film is modified to include the effect of tangential velocity slip at the interface between the oil film and the porous medium, and the pressure equation ...
openaire +2 more sources
Exploring oxide quasicrystals in internal space
Acta Crystallographica Section A, EarlyView.The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Sebastian Schenk +3 more
wiley +1 more source
Why Should we Worry about Nigeria's Fragile Security?
The Political Quarterly, EarlyView.Abstract This paper explores the multifaceted implications of Nigeria's persistent security crisis, highlighting its domestic, regional and global consequences. It examines the humanitarian toll, economic disruption, poverty, food insecurity and the erosion of social cohesion within Nigeria. Regionally, it analyses how Nigeria's instability exacerbates
Onyedikachi Madueke
wiley +1 more source
Self-Similar Intermediate Asymptotics for a Degenerate Parabolic Filtration-Absorption Equation
, 2000 The equation $$ \partial_tu=u\partial^2_{xx}u-(c-1)(\partial_xu)^2 $$ is known in literature as a qualitative mathematical model of some biological phenomena.
Barenblatt, G. I. +3 more
core +2 more sources
Journal of the Royal Anthropological Institute, EarlyView.Hair is an integral part of the skin's interface and has sensory capacity. It actively contributes to processes of bodily materialization and facilitates transactional exchange with other social actors and environments, particularly regarding energies and vibrations that can be perceived as subtle matter.
Sinah Theres Kloß
wiley +1 more source
Churchill and Germany: A ‘Special’ Relationship
History, EarlyView.Abstract No other country defined the trajectory of Churchill's political career more than Germany, a country of which he had little direct knowledge but which he either sought to emulate, accommodate or oppose throughout his time in politics. This article traces Churchill's relationship with Germany from his entry into politics at the beginning of the
T. G. Otte
wiley +1 more source
Conceptual design of harvesting energy system for road application [PDF]
, 2013 Energy harvesting becomes more and more important in our life. It refers to the practice of acquiring energy from the environment which would be otherwise wasted and converting it into usable electric energy.
Mihaj, Kamarul Faiz
core