Results 261 to 270 of about 268,793 (310)

Sequential statistical design strategy in an experimental kinetic study

The Canadian Journal of Chemical Engineering, 1972
AbstractThe value of using a sequential statistical design strategy is illustrated through its use in an experimental kinetic study of the oxidation of o‐xylene over a vanadium oxide catalyst. The rate of oxidation of o‐xylene was determined in a differential reactor over the following ranges of conditions: 270 to 300°C, (0.5 to 3.5) x 10‐4g.mole o ...
J. A. Juusola, D. W. Bacon, J. Downie
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Statistical Considerations and Software for Designing Sequential, Multiple Assignment, Randomized Trials (SMART) with a Survival Final Endpoint

Journal of Biopharmaceutical Statistics, 2023
Sequential, multiple assignment, randomized trial (SMART) designs are appropriate for comparing adaptive treatment interventions, in which intermediate outcomes (called tailoring variables) guide subsequent treatment decisions for individual patients. Within a SMART design, patients may be re-randomized to subsequent treatments following the outcomes ...
Sasha, Kravets, Amy S, Ruppert, Sawyer B, Jacobson, Jennifer G, Le-Rademacher, Sumithra J, Mandrekar   +4 more
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Sequential statistical design strategy in a kinetic study of propylene oxidation

The Canadian Journal of Chemical Engineering, 1989
AbstractA sequential design strategy was used to direct an experimental kinetic study of propylene oxidation over bismuth molybdate. Two statistical criteria were used to design experiments. The first is a joint criterion for the dual problem of model discrimination and parameter estimation which was proposed by Hill et al.
H. S. Tan, D. W. Bacon, J. Downie
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Optimization of fermentation media for nitrite oxidizing bacteria using sequential statistical design

Bioresource Technology, 2008
The sequential statistical experimental design (Plackett-Burman, factorial, response surface and steepest ascent experiment) was applied to optimize the culture medium of nitrite oxidizing bacteria for improving the nitrite oxidizing rate. Estimated optimum medium composition of the nitrite oxidizing rate was as follows: NaHCO3, 1.86gl(-1); NaNO2, 2 ...
Jie, Ren, Wei-Tie, Lin, Yan-Jing, Shen, Ju-Fang, Wang, Xiao-Chun, Luo, Ming-Quan, Xie   +5 more
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Optimal Design of Reliability Acceptance Sampling Plan Based on Sequential Order Statistics

Stochastics and Quality Control, 2019
Abstract The concept of sequential order statistics were introduced by Kamps in 1995. In this article, we derive an acceptance sampling plan, for units having exponentially distributed lifetime, using sequential order statistics. Based on data obtained from progressive type II censoring using constant stress accelerated life tests, we ...
Kumar, Mahesh, Ramyamol, P. C.
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Method of sequential estimation of statistical distribution parameters in control systems design

2014 IEEE 3rd International Conference on Methods and Systems of Navigation and Motion Control (MSNMC), 2014
The paper presents one method of sequential parameter estimation of probability distribution. Equations for theoretical probability distribution function, mathematical expectation and variance of estimates and observation duration are given in the article.
Olexander Solomentsev, Maksym Zaliskyi
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Level-expansion: A statistical sequential design methodology with application to nanomaterial synthesis

Journal of Quality Technology, 2019
Nanotechnology is an era-defining breakthrough across science and engineering. For example, one-dimensional nanostructures such as nanowires, nanotubes, and nanobelts are widely regarded as critical building blocks for creating the next generation of devices in electronics, optics, energy, and biomedicine. Motivated by a practical problem of sequential
Xu Xu, Youngdeok Hwang, Taewan Kim, Fei Wang, Xudong Wang, Peter Chien   +5 more
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Statistical robust design of a complex system through a sequential approach

Journal of Engineering Design, 2005
This paper presents a new robust design approach for a complex system that has multiple candidate scopes of robustness enhancement. This approach captures the robust design project for the system as a sequence of investments under uncertainty, and enhances its economic performance by properly choosing the scopes in which experiment-based robustness ...
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Statistical inference for sequential designs of randomized clinical trials with binary responses

2023
Sequential designs of Randomized Clinical Trials (RCT) allow repeated significance testing based on cumulative data over time. The sequential testing method enables early termination of the study using a pre-defined stopping rule when preliminary results show a clear superiority of one treatment over the other.
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Sequential and Simultaneous Statistical Optimization by Dynamic Design of Experiment for Peptide Overexpression in Recombinant Escherichia coli

Applied Biochemistry and Biotechnology, 2006
The production of recombinant anti-HIV peptide, T-20, in Escherichia coli was optimized by statistical experimental designs (successive designs with multifactors) such as 2(4-1) fractional factorial, 2(3) full factorial, and 2(2) rotational central composite design in order.
Lee, KM Kwang-Min Lee, Rhee, CH Chang-Hoon Rhee, Kang, CK Choong-Kyung Kang, Kim, JH Kim, Jung Hoe   +3 more
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