Results 111 to 120 of about 695,410 (352)

An application of logistic capital management theory model to the economic growth cycle in Lithuania / Logistinės kapitalo valdymo teorijos modelio taikymas Lietuvos ekonominio augimo ciklui

open access: yesTechnological and Economic Development of Economy, 2011
The article analyses one of the most recent theories of economic growth prof. Girdzijauskas (2002, 2006, 2008, 2009, 2010) created logistic growth theory, whose main idea is based on market saturation and the concept of limitation.
Dalia Štreimikienė   +1 more
doaj   +1 more source

Particle production by the expanding thin-walled bubble

open access: yes, 2003
Neglecting the effect of particle production at the moment of bubble nucleation, the spectrum of created particles during the bubble expansion is evaluated in the thin-wall approximation.
Maziashvili, Michael
core   +1 more source

First Observational Tests of Eternal Inflation [PDF]

open access: yes, 2011
The eternal inflation scenario predicts that our observable Universe resides inside a single bubble embedded in a vast inflating multiverse. We present the first observational tests of eternal inflation, performing a search for cosmological signatures of
Feeney, Stephen M.   +3 more
core   +3 more sources

High‐Rate Deposition and Characterization Study of CoZrO Films for On‐Chip Power Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a high‐rate reactive sputtering process for CoZrO films, aimed at large‐scale production of on‐chip magnetic components compatible with complementary metal oxide semiconductor (CMOS) fabrication. Characterization of the deposited films reveals that ideal magnetic properties require chemical compositions in a narrow Co:O range and ...
Elaine Ng   +6 more
wiley   +1 more source

Shear-free boundary in Stokes flow

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
A theorem of Harper for axially symmetric flow past a sphere which is a stream surface, and is also shear-free, is extended to flow past a doubly-body 𝔅 consisting of two unequal, orthogonally intersecting spheres. Several illustrative examples are given.
D. Palaniappan   +2 more
doaj   +1 more source

A hydrodynamical model of the circumstellar bubble created by two massive stars

open access: yes, 2012
Numerical models of the wind-blown bubble of massive stars usually only account for the wind of a single star. However, since massive stars are usually formed in clusters, it would be more realistic to follow the evolution of a bubble created by several ...
A. J. van Marle   +25 more
core   +2 more sources

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

Shape Memory Polymer‐Based Hook‐and‐Loop Fastener for Robust Bonding and on‐Demand Easy Separation

open access: yesAdvanced Engineering Materials, EarlyView.
A 3D shape memory polymer‐based hook‐and‐loop fastener, fabricated using projection microstereolithography and molding, offers tunable bonding strength through temperature control. When heated from 25 to 70 °C, the fastener softens and deforms easily, reducing bonding strength by 20‐fold for on‐demand easy separation.
Chen Yang   +5 more
wiley   +1 more source

Electrical Trees and Their Growth in Silicone Rubber at Various Voltage Frequencies

open access: yesEnergies, 2018
The insulation property at high voltage frequencies has become a tough challenge with the rapid development of high-voltage and high-frequency power electronics.
Yunxiao Zhang   +4 more
doaj   +1 more source

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar   +3 more
wiley   +1 more source

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