نتایج جستجو برای: orthogonal experimental design
تعداد نتایج: 1614619 فیلتر نتایج به سال:
To overcome the drawbacks of premature and poor convergence of classical PSO, a new particle swarm optimization is proposed by combining extrapolation technique and orthogonal design. Orthogonal design is introduced to design self-adaptive orthogonal crossover operator (SOC) which self-adaptively adjusts the number of orthogonal array’s factors and the location for dividing the parent particles...
the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...
current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...
the extent to which written corrective feedback on linguistic errors can play a role in helping l2 writers improve the accuracy of their writing continues to be an issue of interest to researchers and teachers since truscott (1996) mounted a case for its abolition. while there is growing empirical evidence that written corrective feedback can successfully target some types of linguistic error (...
Background: Enzymatic hydrolysis of lactose is one of the most important biotechnological processes in the food industry, which is accomplished by enzyme β-galactosidase (β-gal, β-D-galactoside galactohydrolase, EC 3.2.1.23), trivial called lactase. Orthogonal arrays design is an appropriate option for the optimization of biotechnological processes for the production of microbial...
This paper proposes an orthogonal experimental design based on the optimization method for nozzle geometry of underwater abrasive water jet, with objective maximizing cutting capacity and minimizing nozzle-erosion rate. Parameter effects nozzle’s capability life are analyzed. analysis shows that while contraction-section curve, axial length focus-section mainly affected service nozzle, nozzle-o...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید