Results 41 to 50 of about 8,403,063 (390)

Stability of six-dimensional hyperstring braneworlds

open access: yes, 2005
We study a six-dimensional braneworld model with infinite warped extra dimensions in the case where the four-dimensional brane is described by a topological vortex of a U(1) symmetry-breaking Abelian Higgs model in presence of a negative cosmological ...
Christophe Ringeval   +5 more
core   +2 more sources

Effects of zinc chloride–silicone oil treatment on wood dimensional stability, chemical components, thermal decomposition and its mechanism

open access: yesScientific Reports, 2019
The hygroexpansion and anisotropy of wood limit its application in construction and wood products industry. Zinc chloride–silicone oil was use to decrease the hygroscopicity and improve the dimensional stability of wood at 80 °C, 140 °C, 160 °C and 180 ...
Zhengbin He   +4 more
semanticscholar   +1 more source

Organosilane-modified Wood Materials: A Review of Research and Applications

open access: yesBioResources, 2023
This review article discusses the use of organosilane (OS) compounds and their derivatives to modify wood materials. The emphasis in this work is on trialkoxysilanes and effects of their reactions with hydroxyl groups at wood surfaces.
Honghai Liu   +3 more
doaj  

Three-dimensional stability of Burgers vortices

open access: yes, 2010
Burgers vortices are explicit stationary solutions of the Navier-Stokes equations which are often used to describe the vortex tubes observed in numerical simulations of three-dimensional turbulence.
A. Carpio   +23 more
core   +2 more sources

An effective technique for constructing wood composite with superior dimensional stability

open access: yesHolzforschung, 2019
Fast-growing wood is an abundant and low-cost material and is widely used for structural building and furniture construction. However, inferior mechanical properties and dimensional instability limit its application in advanced engineering structures ...
Xiaoshuai Han   +3 more
semanticscholar   +1 more source

Microstructural features associated with the effect of temperature on the dimensional stability of an automotive Al-A319 alloy

open access: yesAIMS Materials Science, 2016
In this work an automotive Al-A319 was given a solid solution heat treatment (T4) at 753 K (480 °C) for 4.5 hours and an ageing treatment (T7) at 513 K (240 °C) for various times up to 3.0 h.
Hugo F. Lopez
doaj   +1 more source

Reliability of Multiple Pour between Two Classes of Polyvinyl Siloxane Impression Materials: A Preliminary Stereomicroscopic Study

open access: yesKing Khalid University Journal of Health Sciences, 2021
Objective: To evaluate the accuracy and dimensional stability of casts made from regular set alginate alternative (AA) and monophase additional silicone (MAS) impression materials following multiple pours.
Mohammed E. Sayed   +3 more
doaj   +1 more source

Selection theorem for systems with inheritance

open access: yes, 2007
The problem of finite-dimensional asymptotics of infinite-dimensional dynamic systems is studied. A non-linear kinetic system with conservation of supports for distributions has generically finite-dimensional asymptotics.
Gorban, A. N.
core   +1 more source

THE BEHAVIOUR OF THE 2:2 RIB STRUCTURES MADE OF 100% COTTON YARNS, NM 40/1, AFTER KNITTING PROCESS [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2017
Researches made on the 2:2 rib structures have demonstrated that for obtaining knits with maximum dimensional stability it is necessary that in their structure to be introduced tensions with the lowest values, structures to balance dimensionaly from the ...
SZABO Monica   +3 more
doaj  

Impregnação com resina natural na Figueira Branca como forma alternativa de impermeabilização Impregnation with natural resin in the 'Figueira Branca' as alternative form of impermeabilization

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2002
Investigou-se, neste trabalho, a capacidade de impregnação da Figueira Branca (Ficus monckii) com a resina natural da árvore de Jatobá (Hymenaea courbaril); trata-se de uma espécie de madeira de baixa densidade, originária do Estado do Mato Grosso ...
José de S. Nogueira   +3 more
doaj   +1 more source

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