Results 71 to 80 of about 71,749,598 (257)

Special wave finite and infinite elements for the solution of the Helmholtz equation [PDF]

, 2003
The theory and the formulation of the special wave finite elements are discussed, and the special integration schemes for the elements are developed.
Sugimoto, Rie
core  

Differential expression of a retrotransposable element, Rex6, in Colossoma macropomum fish from different Amazonian environments

, 2014
Transposable elements (TEs) are DNA sequences that have the ability to move and replicate within the genomes. TEs can be classified according to their intermediates of transposition, RNA (retrotransposons) or DNA.
Mareco, Edson Assunção, Martins, Cesar, Barbosa, Cassiane Martins, Alves-Costa, Fernanda Antunes, Silva, Maeli Dal Pai   +4 more
core   +3 more sources

Advances in stress-tolerance elements for microbial cell factories

Synthetic and Systems Biotechnology
Microorganisms, particularly extremophiles, have evolved multiple adaptation mechanisms to address diverse stress conditions during survival in unique environments.
Zheyi Kuang, Xiaofang Yan, Yanfei Yuan, Ruiqi Wang, Haifan Zhu, Youyang Wang, Jianfeng Li, Jianwen Ye, Haitao Yue, Xiaofeng Yang   +9 more
doaj   +1 more source

On the Bounds for Diagonal and Off-Diagonal Elements of the Hat Matrix in the Linear Regression Model

Revstat Statistical Journal, 2016
In the least squares analysis, an appropriate criterion to detect potentially influential observations, either individually or jointly, deals with the values of corresponding Hat matrix elements.
Mohammad Mohammadi
doaj   +1 more source

Multi-Dimensional Plant Element Stoichiometry—Looking Beyond Carbon, Nitrogen, and Phosphorus

Frontiers in Plant Science, 2020
Nutrient elements are important for plant growth. Element stoichiometry considers the balance between different nutrients and how this balance is affected by the environment.
Göran I. Ågren, Martin Weih
doaj   +1 more source

Bacterial culture through selective and non-selective conditions: the evolution of culture media in clinical microbiology

new microbes and new infections, 2019
Microbiology has been largely developed thanks to the discovery and optimization of culture media. The first liquid artificial culture medium was created by Louis Pasteur in 1860.
M. Bonnet, J. Lagier, D. Raoult, S. Khelaifia   +3 more
semanticscholar   +1 more source

Numerical analysis of the stress-strain state of thin shells based on a joint triangular finite element

Structural Mechanics of Engineering Constructions and Buildings, 2019
Relevance. The use of the finite element method for determining the stressstrain state of thin-walled elements of engineering structures predetermines their discretization into separate finite elements.
Yuriy V Klochkov, Anatoliy P Nikolaev, Olga V Vakhnina   +2 more
doaj   +1 more source

Singular Higher-Order Complete Vector Bases for Finite Methods [PDF]

, 2004
This paper presents new singular curl- and divergence- conforming vector bases that incorporate the edge conditions. Singular bases complete to arbitrarily high order are described in a unified and consistent manner for curved triangular and ...
Graglia, Roberto, Lombardi, Guido
core   +1 more source

Rare Earth Elements in Agriculture with Emphasis on Animal Husbandry [PDF]

, 2006
Calculations performed in consideration of a continuously increasing world population have revealed that animal production needs to be enhanced worldwide by at least 2 % each year so as to provide sufficient feed.
Redling, Kerstin
core   +1 more source

Interference Suppression in 3-D Monopulse Radar Using External Antenna Elements

IEEE Access
This article presents a method for suppressing incoherent narrowband interference in a 3D surveillance radar with a multi-beam monopulse antenna by adapting the antenna pattern using external suppression antenna elements.
Pavel Bezousek, Simeon Karamazov
doaj   +1 more source