Galerkin’s Residual Method: Applications to Dynamic Fields

1997 ◽  
pp. 400-444
Author(s):  
Nathan Ida ◽  
João P. A. Bastos
Keyword(s):  
Residual Method

A Kind of Preconditioned IGMRES(m) Algorithm

2012 ◽  
Vol 482-484 ◽  
pp. 413-416
Author(s):  
Chun Xiao Yu
Keyword(s):  
Krylov Subspace ◽  
Matrix Decomposition ◽  
Coefficient Matrix ◽  
Algebraic Equations ◽  
Residual Method ◽  
Minimal Residual Method ◽  
Algorithm Convergence ◽  
Minimal Residual

Fundamental theories are studied for an Incomplete Generalized Minimal Residual Method(IGMRES(m)) in Krylov subspace. An algebraic equations generated from the IGMRES(m) algorithm is presented. The relationships are deeply researched for the algorithm convergence and the coefficient matrix of the equations. A kind of preconditioned method is proposed to improve the convergence of the IGMRES(m) algorithm. It is proved that the best convergence can be obtained through appropriate matrix decomposition.

scholarly journals SEDIAAN INSEKTISIDA CALOPHYLLUM SOULATTRI: AKTIVITAS INSEKTISIDA DAN RESIDU TERHADAP LARVA CROCIDOLOMIA PAVONANA DAN KEAMANAN PADA TANAMAN

2007 ◽  
Vol 7 (1) ◽  
pp. 21-29
Author(s):  
Edy Syahputra ◽  
Djoko Prijono
Keyword(s):  
Methanol Extract ◽  
Residual Activity ◽  
Lethal Effect ◽  
Residual Method ◽  
Probit Method ◽  
Red Bean ◽  
Test Insect ◽  
Insecticidal Compounds

Insecticide Preparation of Calophyllum soulattri: Insecticidal and Residual Activity Against Crocidolomia pavonana and Its Savety on Crops. Bioassays were done using leaf-residual method with Crocidolomia pavonana larvae as test insect.  The number of dead larvae was recorded daily and was analyzed using probit method.  The results showed that methanol extract, and dichloromethane fraction of C. soulattri bark possessed strong lethal effect against C. pavonana larvae with LC50 of 0.15%, and 0.05%, respectively.  Dichloromethane fraction of 21 EC and 21 WP sprayed in suspension consentration of 1% on potted broccoli plant had residual activity around 16%-26,7% with range of half-lives of 5.9-7.7 days.  Dichloromethane fraction at concentration of 0.2% and 0.3% formulated as EC did not cause phytotoxic to broccoli, tomato, chilli, soybean, red bean, onion, cucumber, and maize.  Concerning with this potency, further studies are needed to identify insecticidal compounds.

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