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Articles, 3 records found

Articles	3 records found

20 p, 538.4 KB

Panorama brasileiro do setor de reprodução de suínos : um estudo transversal sobre aspectos específicos de biosseguridade, instalações, manejo, alimentação e desempenho / Callegari, Marco Aurélio (Universidade Estadual de Londrina) ; Pierozan, Carlos Rodolfo (Universidade Estadual de Londrina) ; Dias, Cleandro Pazinato (Akei Animal Research) ; Souza, Kelly Lais de (Faculdades Integradas de Ourinhos) ; Foppa, Luciana (Universidade Estadual de Londrina) ; Gasa, Josep (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments) ; Silva, Caio Abércio da (Universidade Estadual de Londrina)
Com este estudo objetivou-se identificar o grau de adoção de diferentes fatores de produção em granjas comerciais de reprodução de suínos no Brasil. Foram coletadas informações de 150 granjas, totalizando 135. [...]
The objective of this study was to identify the degree of adoption of different production factors in commercial pig breeding farms in Brazil. Data were collected from 150 farms, totaling 135,168 sows, including general information, labor, genetics, biosecurity, facilities, management, feeding and productive performance for the year 2015. [...]
2020 - DOI (Digital Object Identifier)

10.5433/1679-0359.2020v41n2p587
Semina: Ciências Agrárias, Vol. 41 Núm. 2 (2020) , p. 587-606

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14 p, 11.0 MB

Dynamics and Site Isolation : Keys to High Propane Dehydrogenation Performance of Silica-Supported PtGa Nanoparticles / Payard, P.-A. (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Rochlitz, L. (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Searles, K. (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Foppa, Lucas (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Leuthold, B. (ETH Zürich. Department of Chemistry and Applied Biosciences) ; Safonova, O. V. (Paul Scherrer Institut (Suïssa)) ; Comas-Vives, Aleix (Universitat Autònoma de Barcelona. Departament de Química) ; Copéret, Christophe (ETH Zürich. Department of Chemistry and Applied Biosciences)
Nonoxidative dehydrogenation of light alkanes has seen a renewed interest in recent years. While PtGa systems appear among the most efficient catalyst for this reaction and are now implemented in production plants, the origin of the high catalytic performance in terms of activity, selectivity, and stability in PtGa-based catalysts is largely unknown. [...]
2021 - DOI (Digital Object Identifier)

10.1021/jacsau.1c00212
JACS Au, Vol. 1, Issue 9 (September 2021) , p. 1445-1458

Detailed record -

6 p, 546.8 KB

What can we learn from first principles multi-scale models in catalysis? The role of the Ni/Al2O3 interface in water-gas shift and dry reforming as a case study / Foppa, Lucas (Eidgenössische Technische Hochschule Zürich. Department of Chemistry and Applied Biosciences) ; Larmier, Kim. (IFP Energies Nouvelles) ; Comas-Vives, Aleix (Universitat Autònoma de Barcelona. Departament de Química)
Computational first principles models based on density functional theory (DFT) have emerged as an important tool to address reaction mechanisms and active sites in metal nanoparticle catalysis. However, the common evaluation of potential energy surfaces for selected reaction steps contrasts with the complexity of reaction networks under operating conditions, where the interplay of adsorbate populations and competing routes at reaction conditions determine the most relevant states for catalyst activity and selectivity. [...]
2019 - DOI (Digital Object Identifier)

10.2533/chimia.2019.239
Chimia, Vol. 73, issue 4 (2019) , p. 239-244

Detailed record -

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