Results 21 to 30 of about 209,691 (268)

Preparation and Characterization of a Novel Lightweight Bio-Degradable Lignocellulosic Porous Molding Material

open access: yesBuildings, 2023
Wood is an abundant biomaterial and widely used in construction and furniture. Timber processing produces large amounts of residues and byproducts, which are of low value.
Yongshun Feng   +3 more
doaj   +1 more source

Preciscavanje otpadnih voda u postupcima prerade i flegmatizacije eksploziva / Refining of waste waters in processes of manufacturing and coating of high explosives [PDF]

open access: yesVojnotehnički Glasnik, 2002
U radu su prikazani tehnološki postupci prerade (flegmatizacije) eksploziva pri kojima dolazi do zagađenja okoline otpadnim vodama. Prikazani su neki od načina prerade otpadnih voda pre nego što se ispuste u javne vodotokove.
Mirjana Anđelković-Lukić
doaj   +1 more source

Relational Concurrent Refinement: Timed Refinement [PDF]

open access: yes, 2011
Data refinement in a state-based language such as Z is defined using a relational model in terms of the behaviour of abstract programs. Downward and upward simulation conditions form a sound and jointly complete methodology to verify relational data refinements, which can be checked on an event-by-event basis rather than per trace.
John Derrick, Eerke A. Boiten
openaire   +1 more source

Catalytic

open access: yesEgyptian Journal of Petroleum, 2014
A series of dealuminated Y-zeolites impregnated by 0.5 wt% Pt catalysts promoted by different amounts of Ni, Pd or Cr (0.3 and 0.6 wt%) were prepared and characterized as hydrocracking catalysts. The physicochemical and structural characterization of the
S.A. Hanafi   +4 more
doaj   +1 more source

Influence of dispersing additives and blend composition on stability of marine high-viscosity fuels

open access: yesЗаписки Горного института, 2017
The article offers a definition of the stability of marine high-viscosity fuel from the point of view of the colloid-chemical concept of oil dispersed systems.
T. N. Mitusova   +4 more
doaj   +1 more source

Numerical Modelling of Metal Melt Refining Process in Ladle With Rotating Impeller and Breakwaters [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The paper describes research and development of aluminium melt refining technology in a ladle with rotating impeller and breakwaters using numerical modelling of a finite volume/element method. The theoretical aspects of refining technology are outlined.
J. Sviželová   +6 more
doaj   +1 more source

Data Refinement Refined. [PDF]

open access: yes, 1986
We consider the original work of Hoare and Jones on data refinement in the light of Dijkstra and Smyth's treatment of nondeterminism and of Milner and Park's definition of the simulation of Communicating Systems. Two proof methods are suggested which we hope are simpler and more general than those in current use.
Jifeng He 0001   +2 more
openaire   +2 more sources

Refining by-products as a source of compounds of high-added value

open access: yesGrasas y Aceites, 2006
In this paper a complete review of by-products coming from the olive oil refining process is reported. By-products from both chemical and physical refining are discussed, along with their compositional properties.
Paolo Bondioli
doaj   +1 more source

Effect of different relative humidities on the oil extracted from stored cottonseed

open access: yesGrasas y Aceites, 1996
Effect of different relative humidities (room, 10%, 46% and 97% R. H.) on the oil extracted from cottonseed stored for one year was studied. The oil extracted from recent non-stored cottonseed was used as a control.
H. E. Helmy, S. S. Mohamad
doaj   +1 more source

Double‐skin house

open access: yesJapan Architectural Review, 2021
In this study, a project, which challenges the possibility of renovating wooden houses that are considered as valueless, is conducted. A 30‐year‐old used wooden house was cut in the middle and relocated by rotating the ridge on one side by 90° to secure ...
Makoto Sato
doaj   +1 more source

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