Some new methods for comparing several sets of regression coefficients under heteroscedasticity

... 11 Analytical Methods for Monitoring Biodegradation Processes oriented, and not much attention was paid to the identification of environmental requirements for, and testing of, biodegradable polymers ... available for studying biodegradation processes have been reviewed in detail by Andrady [13, 14]: 1) 2) 3) 4) monitoring monitoring monitoring monitoring accumulati...

Ngày tải lên: 25/10/2013, 08:20

... ASTM Annual Book of Standards, Part 31, D3694-78 “Standard Practices for Preparation of Sample Containers and for Preservation of Organic Constituents,” American Society for Testing and Materials, ... present, add 80 mg of sodium thiosulfate per liter of sample and mix well EPA Methods 330.4 and 330.5 may be used for measurement of residual chlorine.9 Field tes...

Ngày tải lên: 14/02/2014, 03:20

... secondary dilution standard be prepared at a concentration of 15 µg/mL of each internal standard compound The addition of 10 µL of this standard to 5.0 mL of sample or calibration standard would be ... the chemical analysis Additional references to laboratory safety are available and have been identified4,6 for the information of the analyst Apparatus and Materials 5.1 S...

Ngày tải lên: 14/02/2014, 03:20

... qualitative evaluation of lexical association measures, mainly for the following reasons: the instability of precision values obtained from the rst few percent of the data in the SLs; the lack of signicant ... precision values above 50% for the rst 10% of the list, but is outperformed by the t-test afterwards Looking at the rst 40% of the data, th...

Ngày tải lên: 20/02/2014, 18:20

... program consist of an initial demonstration of laboratory capability and an ongoing analysis of spiked samples to evaluate and document data quality The laboratory must maintain records to * ... µg/mL of each internal standard compound The addition of 10 µL of this standard to 5.0 mL of sample or calibration standard would be equivalent to 30 µg/L 7.3.3 Analyze eac...

Ngày tải lên: 05/03/2014, 21:20

... of the folding out membraneand form of the impulse (2) By any form of the impulse yields the products of the folding out membraneand form of an impulse (3) By any form of the impulse yields the ... products of the folding out membraneand form of an impulse (4) Any form of the impulse is yielded by the interaction of the bending out of the membrane...

Ngày tải lên: 30/03/2014, 17:20

... method for finding a common element of the set of solutions of problem (1.2) and the set of fixed points of a nonexpansive mapping and the set of solutions of the variational inequality problem for ... finding a common element of the set of solutions of a generalized equilibrium problem, the set of fixed points of a family of infinitel...

Ngày tải lên: 21/06/2014, 02:20

... Cambridge, New York, Melbourne (1978) doi:10.1186/1687-1847-2011-14 Cite this article as: Xing and Fu: Some new results for BVPs of first-order nonlinear integro-differential equations of volterra ... integro-differential equations of Volterra type on time scales Nonlinear Anal 68, 127–138 (2008) doi:10.1016/j.na.2006.10.036 Xu, H, Nieto, JJ: Extremal solut...

Ngày tải lên: 21/06/2014, 02:20

... fixed points of nonlinear mappings is an important and active research area In particular, iterative algorithms for finding fixed points of nonexpansive mappings have received vast investigation ... fixed points of a countable family of nonexpansive mappings in a Banach space,” Nonlinear Analysis: Theory, Methods & Applications, vol 67, no 8, pp 2350–2360, 20...

Ngày tải lên: 21/06/2014, 11:20

... a major error in the original version of this paper References K Aoyama, Y Kimura, W Takahashi, and M Toyoda, Approximation of common fixed points of a countable family of nonexpansive mappings ... Banach space with a uniformly G´ teaux differentiable norm a Other investigations of approximating common fixed points for a countable family of nonexpansive...

Ngày tải lên: 21/06/2014, 11:20

... turn will yield bounds on the size of union-free families the electronic journal of combinatorics (1998), # R39 Weakly Union-Free Upper Bound We consider first weakly union-free families We need ... one of the triplets of B , and we let that triplet take care of the parity condition for B The number of choices for the block, in this case, is 840 × 1519 Summing, the...

Ngày tải lên: 07/08/2014, 06:22

... completes our proof since the manipulations at the beginning of the section prove that the two quotients in (5.42) have the same Hilbert series References [1] Yu Berest, P Etingof and V Ginzburg, Cherednik ... gives that the rational function in (5.43) gives the Hilbert series of Q[u, v, y]/ (Bm , Cm , v 2m ) The extra factor of (1 − t) in the denominator account...

Ngày tải lên: 07/08/2014, 08:22

... theorems for a Finite Family of Relatively Nonexpansive Mappings Based on a strong convergence theorem for relatively nonexpansive mappings in a Banach space of Shin-ya Matsushita and Wataru Takahashi, ... VIETNAM NATIONAL UNIVERSITY UNIVERSITY OF SCIENCE FACULTY OF MATHEMATICS, MECHANICS AND INFORMATICS Nguyen Ly Vinh Hanh SOME METHODS FOR COMMON FIXED...

Ngày tải lên: 21/03/2015, 22:58

... between sets of coefficients in two linear regression under heteroscedasticity, Journal of the American Statistical Association, 80(391), 730-735 [2] Chow, G.C (1960), An approximate test for comparing ... Tests of Equality between Sets of Coefficients in Two Linear Regressions under Heteroscedasticity, The Manchester School, 54(2), 208-218 [10] Imhof, JP (1961), C...

Ngày tải lên: 12/10/2015, 17:36

... Some Methods for Comparing Heteroscedastic Regression Models Wu Hao (B.Sc National University of Singapore) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... proposed two approximate tests for comparing heteroscedastic regression models One test is based on the usual F test and the other is based on a likelihood ratio test for the unequal variance case ......

Ngày tải lên: 13/10/2015, 15:57