Results 91 to 100 of about 311,159 (279)

Relationship Between Hyper MV -algebras and Hyperlattices

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2016
Sh. Ghorbani, et al. [9], generalized the concept of MV -algebras and defined the notion of hyper MV -algebras. Now, in this paper, we try to prove that any hyper MV -algebra is a hyperlattice. First we prove that any hyper MV -algebra that satisfies the
Borzooei R. A.   +2 more
doaj   +1 more source

Uniform Gas Flow Distribution into Several Partial Flows under Consideration of Closable Outlets

open access: yesChemie Ingenieur Technik, EarlyView.
The uniform distribution of a gas flow into several partial flows poses a challenge in various technical fields. This study presents a static flow distributor design that ensures an equal distribution of an inlet gas flow regardless of the flow rate and the number of open outlets.
Nikolas Schmidt   +3 more
wiley   +1 more source

Pengembangan Model Pembelajaran ARCS (Attention, Relevance, Confidence, Satisfaction) Dengan Wolfram Mathematica

open access: yesJurnal Derivat, 2019
This study aimed to develop a computer-based ARCS kind of classroom that valid, practical, and effective.This research adopting both qualitative and quantitative research and development with a method developed by Gall and the Borg. This research subject
Anisatul Farida, Ratna Puspita Indah
doaj   +1 more source

Advanced control of non‐isothermal axial dispersion tubular reactors with recycle‐induced state delay

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley   +1 more source

Modelling of continuous low‐temperature emulsion co‐polymerization in 3D‐printed reactor

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
A kinetic model for the emulsion copolymerization of butyl acrylate/styrene at low temperatures is proposed and validated against experiments with a redox initiator system. The model was successfully transferred to a 3D‐printed tubular reactor and conversions of more than 80% and small particles sizes below 40 nm were observed.
Ferel Issa   +2 more
wiley   +1 more source

Differential geometric computations and computer algebra

open access: yesMathematical and Computer Modelling, 1997
The authors discuss the use of computer algebra (CA) in the field of differential geometry (DG) and its applications to geometric structures of partial differential equations. A number of CA packages allow to do DG computations: computations for differential forms and vector fields, such as differentiation, inner products, Lie derivatives, and so on ...
Gragert, P.K.H., Kersten, P.H.M.
openaire   +2 more sources

Optimal model‐based design of experiments for parameter precision: Supercritical extraction case

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source

Computational algebra and algebraic curves [PDF]

open access: yesACM SIGSAM Bulletin, 2003
The development of computational techniques in the last decade has made possible to attack some classical problems of algebraic geometry. In this survey, we briefly describe some open problems related to algebraic curves which can be approached from a computational viewpoint.
openaire   +2 more sources

Subuniformity of harmonic mean p$$ p $$‐values

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract We obtain several inequalities on the generalized means of dependent p$$ p $$‐values. In particular, the weighted harmonic mean of p$$ p $$‐values is strictly subuniform under several dependence assumptions of p$$ p $$‐values, including independence, negative upper orthant dependence, the class of extremal mixture copulas, and some Clayton ...
Yuyu Chen   +3 more
wiley   +1 more source

PURRS: Towards Computer Algebra Support for Fully Automatic Worst-Case Complexity Analysis [PDF]

open access: green, 2005
Roberto Bagnara   +3 more
openalex   +1 more source

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