Results 31 to 40 of about 24,770,333 (307)
Hardness and chloride removal in dewatering system: Modeling and optimization of electrochemical reaction [PDF]
The electrocoagulation (EC) process is a novel approach in the mining industry, especially to recycle water in the dewatering system of a mineral processing plant.
Ali Hasanzadeh-Sabloue +1 more
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Augmented in vitro and in vivo Profiles of Brimonidine Tartrate Using Gelatinized-Core Liposomes
Engy A Abdel Azim,1 Seham A Elkheshen,2,* Rania M Hathout,3,* Marwa A Fouly,4 Nada M El Hoffy1 1Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt, New Cairo, Cairo, 11835, Egypt ...
Abdel Azim EA +4 more
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D-optimal designs for Poisson regression models [PDF]
We consider the problem of finding an optimal design under a Poisson regression model with a log link, any number of independent variables and an additive linear predictor.
Lewis, S. M. +7 more
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Adel A Ali, Amira H Hassan, Essam M Eissa, Heba M Aboud Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, EgyptCorrespondence: Heba M AboudDepartment of Pharmaceutics and Industrial Pharmacy ...
Ali AA, Hassan AH, Eissa EM, Aboud HM
doaj
Rancangan D-Optimal Model Gompertz dengan Maple
Gompertz model is used in many areas including biological growth studies, animal and husbandry, chemistry, and agricultural. Locally D-optimal designs for Gompertz models with three parameters is investigated.
Tatik Widiharih, Budi Warsito
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Estimation of Unknown Object Measures in a Chemical Weighing Design with Correlated Errors
In this paper, some problems that concern the determining of unknown measurements of objects in the model of a chemical balance weighing design are presented.
Małgorzata Graczyk, Bronisław Ceranka
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RANCANGAN D-OPTIMAL MODEL MICHAELIS MENTEN DAN EMAX DENGAN MATLAB
Michaelis Menten and Emax models are widely used in chemistry, pharmacokinetics and pharmacodynamics areas. D-optimal criteria is criteria with the purpuse to minimize the variance of the estimator of parameters in the model. In this paper will discuss
Tatik Widiharih +3 more
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On the number of D-optimal designs
The main result of the paper is the theorem: For \(n=18\), there are precisely three essentially different matrices with elements \(\pm 1\) having the maximum determinant. Only one of these is of the circulant type, but all are of the skew type. This means that there are three \(D\)-optimal designs for \(n=18\).
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Let \(g(n)\) (resp. \(\gamma(n)\)) be the maximum absolute value of the determinant of all \(n\times n\) matrices whose entries are from \(\{1,-1\}\) (resp. \(\{1,-1,i,-i\})\). The following theorems are proved: (1) \(g(2m)\geq 2^m(\gamma(m))^2\), with equality iff there exists a matrix of the form \((\begin{smallmatrix} A & B\\ -B & A\end{smallmatrix})
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A D-optimal design of order 102
The author describes a computer search to construct a \(D\)-optimal design of order 102.
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