factorial experiment
1.Given the results of a replicated 22 full-factorial experiment, the Six Sigma Black Belt should be able to complete the entire ANOVA table.
2.Methods:We selected preliminarily to obtain a good recipe according to drug(Acetaminophen,APAP)and main excipients(microcrystalline cellulose,MCC)mixture stability,the result of drug accumulated concentration from dispersible tablets by factorial experiment.
3.In 1986, the staff of CORBANA (National Association of Banana Growers) summarized all the trends found in previous experiments and designed a big factorial experiment which has been in the field for more than 4 years.
4.A 2×7 factorial experiment was used to study the effects of animal(cockerel and drake) and removal period of digesta(4、8、14、24、32、38、48 h) on the residual amount of dry matter in digestive tract.
5.Its basic principle is to regard selecting or do not selecting a feature as a two-level independent factor; the parameters of SVM as continuous noise factors; the accuracy of the SVM model as the dependent variable; to employ a fractional factorial experiment design to form the experiment which combines the two-level factors and the noise factors; after the experiment is finished, to analyze the effect of each factor to determine the effective independent factor combination, namely the best feature combination for the SVM model.
6.Methods Two-factorial experiment was designed to explore the influence of four dosage levels of Ox-LDL (0,50,100,200?mg/L) at three diff erent stages of exposure (24,48 and 72?hr) on proliferation apoptosis and necro sis of macrophage cells of SRA (scavenger receptor A) knockout mice.
7.The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper.The experimental results indicate that the effect of single retarder,such as citric acid,is inferior to that of composite retarder which Was made of blending citric acid with a few Portland cement(about 0.5?,by weight).The effect of different water-retention agents,such as Polyvinyl alcohol(PVA),carboxymethyl cellulose (CMC),and Na-bentonite,etc.,Was also studied,and the results demonstrate that by means of adding organic and inorganic water-retention agent simultaneously the water-retention of plastering slurry can obviously be improved.The optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other.
8.one-day-old Abro Acres broilers were randomly allocated to 36 groups of 12 replicates according to the second-order regression, nearly orthogonal rotatable composite factorial design. The purpose of the experiment is to determine the optimal requirment of calcium , phosphorus ,manganese , zinc, vitamin D 3 for broiler chickens aged from 0 to 2 weeks ,and to determine the regression model estimating broiler chickens performance .
9.An experiment was conducted by using total of27 crossbred lambs (3.5～4months)ofPoll Dorset (?)× Tibetan sheep (♀)to investigate the effects of complete pellets with different nutritional levels (NRC recommended,0.9×NRC,0.8×NRC)ondigestion and metabolism of nitrogen A single factorial arrangement of treatment was adopted in the experiment. Lambs were randomly divided into three groups (groupA,groupB,grpupC).
10.Energy and protein metabolism rules and requirement factorial models of beef cattle at the age of 4~6 and 7~10 month were systematically studied by the feeding test, digestion-metabolism experiment, nylon bag in rumen and comparative slaughtering test.
