Results 11 to 20 of about 3,379,244 (276)

Rancangan D-Optimal Model Gompertz dengan Maple [PDF]

open access: yesMedia Statistika, 2017
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
doaj   +2 more sources

D-optimal Saturated Designs: A Simulation Study [PDF]

open access: yes, 2014
8 pages.
Fontana, Roberto   +2 more
openaire   +5 more sources

Development of nanoemulsion-based hydrogel containing andrographolide: physical properties and stability evaluation

open access: yesJournal of Pharmacy and Bioallied Sciences, 2020
Introduction: Andrographolide is a compound that shows various pharmacological activities, which can be applied topically or orally. Nanoemulsion can improve drug solubility and stability, but has limitations for topical application.
Oktavia Indrati   +3 more
doaj   +1 more source

Optimal designs for active controlled dose finding trials with efficacy-toxicity outcomes [PDF]

open access: yes, 2016
Nonlinear regression models addressing both efficacy and toxicity outcomes are increasingly used in dose-finding trials, such as in pharmaceutical drug development.
Bretz, Frank   +4 more
core   +3 more sources

Comparison of Box–Behnken, Central Composite, and D-Optimal Designs for Optimization of Phthalocyanine Dye Removal Using Magnetic Nanoparticles Iron Oxide Modified by Polyaspartic Acid [PDF]

open access: yesشیمی کاربردی روز
In this study, the performance of the Box–Behnken, central composite and D-optimal designs (BBD, CCD or DOD, respectively) were compared for the use in modeling and optimizing the new study of the removal of phthalocyanine dye using magnetic ...
Javad Zolgharnein   +2 more
doaj   +1 more source

D-optimal designs for multinomial logistic models [PDF]

open access: yesThe Annals of Statistics, 2020
We consider optimal designs for general multinomial logistic models, which cover baseline-category, cumulative, adjacent-categories, and continuation-ratio logit models, with proportional odds, non-proportional odds, or partial proportional odds assumption.
Bu, Xianwei, Majumdar, Dibyen, Yang, Jie
openaire   +4 more sources

Notes on D‑optimal Spring Balance Weighing Designs

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2018
Spring balance weighing design is a model of an experiment in which the result can be presented as a linear combination of unknown measurements of objects with factors of this combination equalling zero or one. In this paper, we assume that the variances
Bronisław Ceranka, Małgorzata Graczyk
doaj   +1 more source

D-Optimal Design for a Causal Structure for Completely Randomized and Random Blocked Experiments

open access: yesJournal of Probability and Statistics, 2022
Most experimental design literature on causal inference focuses on establishing a causal relationship between variables, but there is no literature on how to identify a design that results in the optimal parameter estimates for a structural equation ...
Zaher Kmail, Kent Eskridge
doaj   +1 more source

ON D-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS [PDF]

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2015
The paper deals with the problem of determining the chemical balance weighing designs satisfying the criterion of D-optimality under assumption that the measurement errors are equal correlated and they have the same variances. The existence conditions and the form of the optimal design are given.
Ceranka, Bronisław   +1 more
openaire   +4 more sources

Highly D-Efficient Weighing Designs for an Even Number of Objects

open access: yesRevstat Statistical Journal, 2018
In this paper we formulate how to add a = 1, 2, 3 runs to a near D-optimal weighing design to get a highly D-efficient weighing design when the number of objects p is even.
Bronisław Ceranka   +1 more
doaj   +1 more source

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