Zobrazeno 1 - 10
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pro vyhledávání: '"becker, Roland"'
Mapped coercivity for the stationary Navier-Stokes equations and their finite element approximations
Autor:
Becker, Roland, Braack, Malte
This paper addresses the challenge of proving the existence of solutions for nonlinear equations in Banach spaces, focusing on the Navier-Stokes equations and discretizations of thom. Traditional methods, such as monotonicity-based approaches and fix
Externí odkaz:
http://arxiv.org/abs/2412.00494
Publikováno v:
Advances in Applied Mechanics, volume 58, chapter 1, 2024
Error control by means of a posteriori error estimators or indica-tors and adaptive discretizations, such as adaptive mesh refinement, have emerged in the late seventies. Since then, numerous theoretical developments and improvements have been made,
Externí odkaz:
http://arxiv.org/abs/2407.07768
Autor:
Lückmann, Johannes, Becker, Roland, Miles, Mark, Alix, Anne, Dinter, Axel, Kroder, Stefan, Pilling, Ed, Ruddle, Natalie, Schneider, Christof, Sharples, Amanda, Oger, Laurent
Publikováno v:
Julius-Kühn-Archiv, Vol 465, Pp 82-89 (2020)
In addition to other assessments, the EFSA bee guidance document (2013) requires the risk assessment of plant protection products on honey bee larvae. At the time the EFSA GD was finalized, no data on honey bee larvae were available due to absence of
Externí odkaz:
https://doaj.org/article/d6e93193e05740bbaba547ebf1d69dba
Autor:
Mark , Miles, Alix, Anne, Becker, Roland, Coulson, Mike, Dinter, Axel, Oger, Laurent, Pilling, Ed, Sharples, Amanda, Weyman, Gabe
Publikováno v:
Julius-Kühn-Archiv, Vol 462, Pp 86-90 (2018)
When changes to regulatory guidance for risk assessment are proposed it is necessary to undertake an impact analysis to assess whether they bring the desired improvement to a risk assessment and reliability of the outcomes to inform decision making.
Externí odkaz:
https://doaj.org/article/1addb7774c624b7fad7b0aa9aedb66d5
Autor:
Becker, Roland, Lückmann, Johannes
Publikováno v:
Julius-Kühn-Archiv, Vol 462, Pp 95-98 (2018)
Bee brood studies under semi-field conditions according to OECD GD 75 display a strong variability of the brood termination rates (BTRs) as the key endpoint. Therefore, the ICP-PR Bee Brood Group considered the performance of EPPO 170 field studies u
Externí odkaz:
https://doaj.org/article/711169b79e3343a48dbb180767a6ab02
Publikováno v:
Julius-Kühn-Archiv, Vol 462, Pp 111-115 (2018)
OECD Guidance Document 75 (2007) outlines a test method to assess effects of plant protection products (PPPs) on honeybee brood under semi-field conditions. The assessment of bee brood development is conducted by mapping cells containing eggs and fol
Externí odkaz:
https://doaj.org/article/55451d62c49b426db8598ca98b207989
Autor:
Allan, Matthew J., Barth, Markus, Becker, Roland, Bocksch, Sigrun, Cornement, Magdaléna, Eckert, Jakob H., Giffard, Hervé, Hodapp, Bettina, Jeker, Lukas, Kimmel, Stefan, Lückmann, Johannes, Persigehl, Markus, Pilling, Ed, Ruddle, Natalie, Sabo, Rastislav, Schneider, Christof, Schmitzer, Stephan, Sultan, Maryam, Tänzler, Verena, Wilkins, Selwyn
Publikováno v:
Julius-Kühn-Archiv, Vol 465, Pp 76-77 (2020)
Externí odkaz:
https://doaj.org/article/89ecc2ba98004653b1168ac0bfb235fb
Autor:
Dinter, Axel, Alix, Anne, Becker, Roland, Campbell, Peter, Miles, Mark, Pilling, Ed, Ruddle, Natalie, Sharples, Amanda, Weyman, Gabe, Oger, Laurent
Publikováno v:
Julius-Kühn-Archiv, Vol 462, Pp 170-172 (2018)
A preliminary data evaluation was conducted by ECPA companies to compare the sensitivity of bumblebees (Bombus terrestris) with the sensitivity of honeybees (Apis mellifera). For the evaluation about 70 data sets were available for contact exposure a
Externí odkaz:
https://doaj.org/article/515fbe14ac844e3dbef63809edb0a827
Autor:
Becker, Roland, Lückmann, Johannes, Miles, Mark, Alix, Anne, Weyman, Gabe, Pilling, Ed, Ruddle, Natalie, Dinter, Axel, Sharples, Amanda, Fritz, Stephanie, Oger, Laurent
Publikováno v:
Julius-Kühn-Archiv, Vol 462, Pp 69-71 (2018)
In addition to other assessments, the 2013 EFSA bee guidance document requires the risk assessment of plant protection products on honey bee larvae. At the time the EFSA document was finalized, no data on honey bee larvae were available. In 2013 ECPA
Externí odkaz:
https://doaj.org/article/bb799b86f9dc4a14b254f7568dc3d0b5