Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Wolfgang Hess"'
Autor:
Sanjay Kumar Jain, Gregor Langen, Wolfgang Hess, Thomas Börner, Ralph Hückelhoven, Karl-Heinz Kogel
Publikováno v:
Molecular Plant-Microbe Interactions, Vol 17, Iss 4, Pp 374-382 (2004)
We performed cytological and molecular analyses of the interaction between the biotrophic barley powdery mildew fungus Blumeria graminis f. sp. hordei and white and green leaves of the barley albostrians mutant. The leaves have the same nuclear genot
Externí odkaz:
https://doaj.org/article/a96b0bc7c40242a58d96e71dde892395
Publikováno v:
Structural and Multidisciplinary Optimization. 57:1267-1281
This paper addresses the problem of combining topology and shape optimization approaches by exploiting suitable methods from both discrete as well as nonlinear optimization. The topology decisions are made iteratively within the general optimization
Autor:
Wolfgang Hess, Maria Persson
Publikováno v:
Disrupted Economic Relationships ISBN: 9780262353083
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b330cb93ff3d883f83f1919b3a3cd9e
https://doi.org/10.7551/mitpress/11703.003.0011
https://doi.org/10.7551/mitpress/11703.003.0011
Publikováno v:
Jahrbücher für Nationalökonomie und Statistik. 236:455-481
This paper proposes a discrete-time hazard regression approach based on the relation between hazard rate models and excess over threshold models, which are frequently encountered in extreme value modelling. The proposed duration model employs a flexi
Publikováno v:
Statistics in Medicine. 33:3919-3931
in Undetermined Multi-state transition models are widely applied tools to analyze individual event histories in the medical or social sciences. In this paper, we propose the use of (discrete-time) competing-risks duration models to analyze multi-tran
Publikováno v:
Journal of Banking & Finance. 37:4738-4754
We employ spatial econometrics techniques to investigate to what extent countries’ economic and geographical relations affect their stock market co-movements. Among the relations that we analyze, bilateral trade proves to be best suited to capture
Autor:
Stefan Ulbrich, Wolfgang Hess
Publikováno v:
Optimization Methods and Software. 28:943-968
We develop an optimization algorithm which is able to deal with inexact evaluations of the objective function. The proposed algorithm employs sequential quadratic programming with a line search that uses the l1 penalty function for an Armijo-like con
Publikováno v:
International Journal of Environmental Research and Public Health, Vol 10, Iss 9, Pp 3930-3953 (2013)
International Journal of Environmental Research and Public Health
Volume 10
Issue 9
Pages 3930-3953
International Journal of Environmental Research and Public Health
Volume 10
Issue 9
Pages 3930-3953
Background: A high prevalence of sickness absence in many countries, at a substantial societal cost, underlines the importance to understand its determining mechanisms. This study focuses on the link between relative deprivation and the probability o
Publikováno v:
ICRA
Portable laser range-finders, further referred to as LIDAR, and simultaneous localization and mapping (SLAM) are an efficient method of acquiring as-built floor plans. Generating and visualizing floor plans in real-time helps the operator assess the
Autor:
Wolfgang Hess, Maria Persson
Publikováno v:
Empirical Economics. 43:1083-1107
The recent literature on the duration of trade has predominantly analyzed the determinants of trade flow durations using Cox proportional hazards models. The purpose of this article is to show why it is inappropriate to analyze the duration of trade