Results 271 to 280 of about 6,324,753 (321)

Peat filter performance under changing environmental conditions

Journal of Hazardous Materials, 2009
Peat is a candidate filter material for in situ treatment of urban runoff, contaminated groundwater and landfill leachates. Until now research has focused on peat sorption in batch experiments and there is a lack of knowledge on peat performance in filter beds. In this project column tests were carried out to evaluate the capacity of peat to remove As,
Kalmykova, Y., Strömvall, A., Rauch, S., Morrison, Greg   +3 more
openaire   +3 more sources

Environmentally corrected matched filter

Journal of the Acoustical Society of America, 2015
Matched filtering is commonly used to process broadband active acoustic echoes providing higher levels of range resolution and reverberation noise suppression than can be realized through narrowband processing. Since theoretical processing gains are proportional to the signal bandwidth, it is typically desirable to utilize the widest band signals ...
openaire   +1 more source

How do species and data characteristics affect species distribution models and when to use environmental filtering?

International Journal of Geographical Information Science, 2019
Species distribution models (SDMs) are widely used in ecology and conservation. However, their performance is known to be affected by a variety of factors related to species occurrence characteristics. In this study, we used a virtual species approach to
Lukáš Gábor, Vítězslav Moudrý, V. Barták, V. Lecours   +3 more
semanticscholar   +1 more source

Filtering strategic environmental information processing using EIS

Proceedings of the Twenty-Fourth Annual Hawaii International Conference on System Sciences, 2002
Environmental scanning and interpretation (ESI power filter; the organized scanning filter; the interpretation filter; and the communication filter. It also examines attributes that may influence the performance of each filter and thus the quality of output, strategic information, of ES&I.
null Pien Wang, E. Turban
openaire   +1 more source

Community assembly in a modular organism: the impact of environmental filtering on bryozoan colony form and polymorphism.

Ecology, 2020
Understanding community assembly is a key goal in community ecology. Environmental filtering influences community assembly by excluding ill-adapted species, resulting in communities with similar functional traits.
Carolann R Schack, D. Gordon, K. Ryan
semanticscholar   +1 more source

Environmental sound classification using log-Gabor filter

2012 IEEE 11th International Conference on Signal Processing, 2012
This paper presents novel approaches for efficient feature extraction using environmental sound magnitude spectrogram. We propose approaches based on the visual domain, the spectrogram is passed through a bank of 12 log-Gabor filters, followed by an averaged operation and passed through an optimal feature selection procedure based on mutual information.
Sameh Souli, Zied Lachiri
openaire   +1 more source

Altitude as environmental filtering influencing phylogenetic diversity and species richness of plants in tropical mountains

Journal of Mountain Science, 2023
C. M. Galván-Cisneros, P. M. Villa, A. Coelho, P. Campos, J. Meira‐Neto   +4 more
semanticscholar   +1 more source

Nitrogen addition gradient can regulate the environmental filtering of soil potassium or phosphorus in shaping the community assembly of alpine meadow

, 2020
Nitrogen (N) deposition and warming leads to environmental gradients that shape plant communities and ecological diversity, space is treated as an equally important variable as the environmental variables in the environmental gradients.
Shuai Li, S. Dong, Hao Shen, Yudan Xu, Xiaoxia Gao, Yuhui Han, Jing Zhang, Mingyue Yang, Yu Li, Zhenzhen Zhao, YunfengYang, Shi-liang Liu, Hua-kun Zhou, Q. Dong, D. Swift   +14 more
semanticscholar   +1 more source

Local Filtering of Environmental Noise

2002
Cleveland, Ohio ...
BUCCI, OVIDIO MARIO, CAPOZZOLI, AMEDEO, C. CURCIO, D'ELIA, GIUSEPPE   +3 more
openaire   +4 more sources

Improved Membrane-filter Air-sampling Methods for Environmental Control

Health Physics, 1962
Air sampling is a useful tool for controlling, as well as for analyzing, the environment. The equipment and techniques described were designed to facilitate the collection of localized samples directly at the source of potential contamination. Routine use of membrane filters was simplified by the design of a small, inexpensive filter holder, providing ...
K J, SCHIAGER, T M, ALLEN, S B, GERBER, G E, KINSELLA, F J, KRUPKA, D W, REILLY   +5 more
openaire   +2 more sources