Long-term ecological research in southern Brazil grasslands: Effects of grazing exclusion and deferred grazing on plant and arthropod communities.

Autor: Pedro M A Ferreira, Bianca O Andrade, Luciana R Podgaiski, Amanda C Dias, Valério D Pillar, Gerhard E Overbeck, Milton de S Mendonça, Ilsi I Boldrini

Publikováno v: PLoS ONE, Vol 15, Iss 1, p e0227706 (2020)

Grazing exclusion may lead to biodiversity loss and homogenization of naturally heterogeneous and species-rich grassland ecosystems, and these effects may cascade to higher trophic levels and ecosystem properties. Although grazing exclusion has been

Externí odkaz: https://doaj.org/article/654122f847314db58f430b670056ab32

Efficient Oxidative Desulfurization Processes Using Polyoxomolybdate Based Catalysts

Autor: Carlos M. Granadeiro, Pedro M. C. Ferreira, Diana Julião, Luís A. Ribeiro, Rita Valença, Jorge C. Ribeiro, Isabel S. Gonçalves, Baltazar de Castro, Martyn Pillinger, Luís Cunha-Silva, Salete S. Balula

Publikováno v: Energies, Vol 11, Iss 7, p 1696 (2018)

This work proposes an efficient desulfurization system to produce low sulfur diesel under sustainable and moderate experimental conditions. Treatment of a real diesel with a sulfur content of 2300 ppm led to 80% desulfurization after 2 h. The process

Externí odkaz: https://doaj.org/article/23928f0fb7b641a4bbbd25ca69543386

Reliable disturbance rejection

Autor: Pedro M. G. Ferreira

Publikováno v: Sba: Controle & Automação Sociedade Brasileira de Automatica v.16 n.1 2005
Sba: Controle & Automação Sociedade Brasileira de Automatica
Sociedade Brasileira de Automática (SBA)
instacron:SBA
Sba: Controle & Automação Sociedade Brasileira de Automatica, Volume: 16, Issue: 1, Pages: 56-59, Published: MAR 2005

The paper studies the reliability (sensor and actuator failures) of the asymptotic disturbance rejection problem for linear time invariant systems using the factorization approach, assuming that not all loops fail simultaneously and that sensor and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27549907c939daed9eed3012fb51ae2d
https://doi.org/10.1590/s0103-17592005000100006

Potential reflection of distinct ecological units in plant endemism categories

Autor: Pedro M A, Ferreira, Ilsi I, Boldrini

Publikováno v: Conservation biology : the journal of the Society for Conservation Biology. 25(4)

The level of endemism at a site may indicate species richness of the site. Nevertheless, assessing endemism levels in taxonomic groups such as plants may be difficult because the species richness of plants is high relative to species richness of othe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::76f5323e9ef51ba247029f190b29b1ba
https://pubmed.ncbi.nlm.nih.gov/21488957

Robustness and partial robustness in the servo problem

Autor: Pedro M. G. Ferreira

Publikováno v: International Journal of Control. 32:891-898

The paper studies the robustness of the servomechanism in the transfer function matrix set-up. First the minimum-order internal model is considered, then the redundant one, with some or all of the plant's parameters arbitrarily perturbed.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::527a139df5440442d666258d1c18933a
https://doi.org/10.1080/00207178008922896