Results 21 to 30 of about 2,720,283 (280)

Quantification of dynamic excitation potential of pedestrian population crossing footbridges [PDF]

open access: yes, 2011
Due to their slenderness, many modern footbridges may vibrate significantly under pedestrian traffic. Consequently, the vibration serviceability of these structures under human-induced dynamic loading is becoming their governing design criterion.
Pavić, Aleksandar, Živanović, Stana
core   +2 more sources

Recoveries of Common Seals Phoca vitulina L. tagged along the Norwegian coast

open access: yesFauna Norvegica, 1988
A total of 296 Common Seals have been tagged along the Norwegian coast in the period from 1978 to 1987. Thirty six of the tagged seals have been recovered. Twenty six during their first year of life.
Øystein Wiig, Nils Øien
doaj   +1 more source

Evaluation of Trichogramma cacaeciae (Hymenoptera: Trichogrammatidae) and Blattisocius mali (Mesostigmata: Blattisociidae) in the Post-Harvest Biological Control of the Potato Tuber Moth (Lepidoptera: Gelechiidae): Use of Sigmoid Functions

open access: yesAgriculture, 2022
The potato tuber moth (PTM), Phthorimaea operculella, is the main potato pest in the world, having managed to adapt to a wide range of climatic conditions, and causing damage to stored tubers.
Yohan Solano-Rojas   +5 more
doaj   +1 more source

Dynamic railway junction rescheduling using population based ant colony optimisation [PDF]

open access: yes, 2014
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Efficient rescheduling after a perturbation is an important concern of the railway industry. Extreme delays
Eaton, Jayne, Yang, Shengxiang
core   +1 more source

Stock assessment and exploitation of Atlantic salmon Salmo salar L. in the river Drammenselv

open access: yesFauna Norvegica, 1986
In 1985 the total salmon run and the exploitation rate in the river Drammenselv were estimated by combining catch statistics, counts of ascending salmon in a salmon ladder at Hellefoss, and a tagging-recapture experiment of the spawning stock below the ...
Lars P. Hansen   +2 more
doaj   +1 more source

Ecological ramifications of adaptation to size-selective mortality

open access: yesRoyal Society Open Science, 2021
Size-selective mortality due to harvesting is a threat to numerous exploited species, but how it affects the ecosystem remains largely unexplored. Here, we used a pond mesocosm experiment to assess how evolutionary responses to opposite size-selective ...
Charlotte Evangelista   +7 more
doaj   +1 more source

Population–reaction model and microbial experimental ecosystems for understanding hierarchical dynamics of ecosystems [PDF]

open access: yes, 2016
Understanding ecosystem dynamics is crucial as contemporary human societies face ecosystem degradation. One of the challenges that needs to be recognized is the complex hierarchical dynamics.
Hosoda, Kazufumi   +3 more
core   +1 more source

Semiparametric Estimation of Task-Based Dynamic Functional Connectivity on the Population Level [PDF]

open access: yes, 2019
Dynamic functional connectivity (dFC) estimates time-dependent associations between pairs of brain region time series as typically acquired during functional MRI.
Dzemidzic, Mario   +6 more
core   +1 more source

About the interplay of sensitive and resistant biotypes in weed populations - simulation exercises for Echinochloa crus-galli in maize crops

open access: yesJulius-Kühn-Archiv, 2016
Weed species easily establish in crops with a similar life cycle. Especially mono-cropping provides best conditions for such weeds. In maize this is true for Echinochloa crus-galli, which is a C4 plant and one of the worst weeds worldwide.
von Redwitz, Christoph   +2 more
doaj   +1 more source

Dinamika Populasi Diaphorina citri Kuwayama (Homoptera: Psyllidae) dan Deteksi CVPD dengan Teknik PCR

open access: yesJurnal Entomologi Indonesia, 2015
The research was conducted in the field of Taro village Gianyar regency and Katung village Bangli regency and at the Laboratory of Biotechnology Faculty of Agricultural Udayana University.
I NYOMAN WIJAYA   +3 more
doaj   +1 more source

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