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Showing 1 to 20 of 177 for “"Response Surface Methodology"”.
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Semiparametric Techniques for Response Surface Methodology
… statisticians employ the techniques of Response Surface Methodology (RSM) to study and optimize products and processes. A second-order Taylor series approximation is commonly utilized to model the data; however, parametric models are not always adequate. In these situations, any degree …
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Some optimization procedures used in response surface methodology
… survey into selected optimization topics of response surface methodology. In a typical response surface problem one of the main problems to be solved is to find those levels of the controllable variables to provide an optimum response such as highest yield or lowest cost. Several methods for …
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Precision of the path of steepest ascent in response surface methodology
… the precision of the path of steepest ascent in response surface methodology to cover situations with correlated and heteroscedastic responses, including the important class of generalised linear models. It is shown how the eigenvalues of a certain matrix can be used to express the proportion of …
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Development of Approximations for HSCT Wing Bending Material Weight using Response Surface Methodology
… is based on HSCT configuration parameters. A response surface methodology is used to fit a quadratic polynomial to data gathered from a large number of structural optimizations. To reduce the time of performing a large number of structural optimizations, coarse-grained parallelization with a …
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Diesel-cng dual fuel combustion characterization using vibro-acoustic analysis and response surface methodology
… of diesel-CNG dual fuel engine using Response Surface Methodology (RSM). Two inputs which are CNG substitution rate and engine speed were used to predict the engine output characteristics in terms of engine performance, exhaust emissions, combustion pattern and combustion stability. …
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Simulation-optimization studies: under efficient stimulation strategies, and a novel response surface methodology algorithm
… computer simulations are used to obtain the mean response values for the required settings of the independent variables. Procedures for optimizing on the mean response values, which are in turn obtained through computer simulation experiments, are called simulation-optimization techniques. The …
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Using TiO2 to Optimize the Photocatalytic Degradation of Kraft Black Liquor Using Response Surface Methodology
… removal in comparison with TiO2 concentration. A response surface methodology (RSM) model was developed to predict the maximum 4-hour TOC reduction of 51.6% under optimal conditions of a pH of 7.87, 37 ℃, and a catalyst particle size of 5 nm. Compared with the preliminary study, an additional …
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Enhancing the functionality of delactosed whey by enzymatic hydrolysis using Response Surface Methodology Approach (RSM)
… tested makes the task quite challenging. Using response surface methodology (RSM), the number of experimental units necessary to find the optimal point can be tailored depending on the time and resource constraints of the experimenter. The first objective was, therefore, to amplify the …
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Graphical Tools, Incorporating Cost and Optimizing Central Composite Designs for Split-Plot Response Surface Methodology Experiments
… from in CRDs, and hence this affects not only response modeling but also the choice of design. In this dissertation, two graphical tools, three-dimensional variance dispersion graphs (3-D VDGs) and fractions of design space (FDS) plots are adapted for split-plot designs (SPDs). They are used …
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Effects of acid hydrolysis conditions on cellulose nanocrystal yield and properties: A response surface methodology study
… low, often below 20%. This study employs response surface methodology to optimize the hydrolysis conditions for maximum CNC yield. Two experimental designs were tested and compared: the central composite design (CCD) and the Box–Behnken design (BBD). The three factors for the experimental …
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An Investigation to Determine the Single Point Cutting Tool Angles Which Yield Maximum Tool Life by Response Surface Methodology and Evolutionary Operation of Processes
Made available in DSpace on 2014-12-09T17:13:41Z (GMT). No. of bitstreams: 1 6801797.pdf: 5067518 bytes, checksum: e494d406769d06499952c1398f121069 (MD5) Previous issue date: 1967
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A response surface approach to data analysis in robust parameter design
It has become obvious that combined arrays and a response surface approach can be effective tools in our quest to reduce (process) variability. An important aspect of the improvement of quality is to suppress the magnitude of the influence coming from subtle changes of noise factors. To model and …
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Response surface approximations for pitching moment including pitch-up in the multidisciplinary design optimization of a high-speed civil transport
… included directly in the design process. Using response surface methodology, polynomial approximations to the results obtained from a computationally expensive estimation method were developed by analyzing a set of statistically selected wing shapes. These response surface models were then used …
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Harvesting of microalgae botryococcus sp. Through phycoremediation of bathroom greywater
… effects of experimental factors through Response Surface Methodology (RSM) design expert software. Botryococcus sp. was inoculated in bathroom greywater with 4.5 x 106 cell/mL for phycoremediation process. Microalgae Botryococcus sp. grown in bathroom greywater from House A, House B and …
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Recommendations for Design Parameters for Central Composite Designs with Restricted Randomization
In response surface methodology, the central composite design is the most popular choice for fitting a second order model. The choice of the distance for the axial runs, alpha, in a central composite design is very crucial to the performance of the design. In the literature, there are plenty of …
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Decision-Based Design of New Products: Electrothermal Swing Adsorption (Esa) System
… are determined in screening experiments. A response surface methodology using Central Composite Design is then used to optimize the operation of the ESA system. The results of the experiments also provide inputs to the multiattribute evaluation and design optimization. Finally, an assessment …
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Hydraulic Fracturing and Flow-back Simulation in Unconventional Tight Reservoirs
… distribution. At last, Design of Experiments and response surface methodology are conducted to explore well operational parameters affecting flow-back recovery and net present value (NPV). This study provides new insights on the hydraulic fracturing and can be a reference for fracturing treatments …
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The Analysis, Characterization and the Chemical Syntheses of C(20) and C(22) Cyclic Fatty Acid Monomers Formed in Heated Fish Oil
… the chemical synthesis was carried out using the response surface methodology. Gas chromatography-mass spectrometry, high resolution $\sp1$H nuclear magnetic resonance and fourier transform infra-red spectrometry were used for structural verification of intermediates and final products.
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Automated multi-stage geometry parameterization of internal fluid flow applications
… parameterization technique for three-dimensional surface manipulation is proposed. The first stage in the process defines the geometry in a global sense, allowing large scale freedom to produce a wide variety of shapes using only a small set of design variables. Invariably, optimization using a …
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