Zobrazeno 1 - 10
of 36
pro vyhledávání: '"FRANCISCO A. R. LAHR"'
Autor:
Pedro Ignácio Lima Gadêlha Jardim, Elen A. M. Morales, Túlio H. Panzera, Fernando J. R. Mascarenhas, Victor A. de Araujo, Herisson F. dos Santos, Emerson Faustino, Diego H. de Almeida, Francisco A. R. Lahr, André Luis Christoforo
Publikováno v:
BioResources, Vol 18, Iss 4, Pp 7230-7238 (2023)
As a biodegradable material, wood is subject to deterioration if proper conservation techniques are not observed. Thus, several buildings, especially those of historical heritage, present pathological manifestations that can cause accidents. The inte
Externí odkaz:
https://doaj.org/article/249d9181d0e24c22b623ebff65b42bc7
Autor:
Tiago H. Almeida, Fabiane S. Ferro, Vinicius B. de M. Aquino, André L. Christoforo, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 41, Iss 5, Pp 567-575 (2021)
ABSTRACT Brazilian flora has more than 12 thousand tropical wood species, which can be the raw material for the construction industry. Chromated copper borate (CCB) and chromated copper arsenate (CCA) are wood preservative chemicals, which can genera
Externí odkaz:
https://doaj.org/article/bc323943b4d44794a8450e363ff51dac
Autor:
Arthur F. F. Gomes, Leonardo C. Mesquita, Edson F. C. Rodrigues, Felipe N. Arroyo, Vinícius B. M. Aquino, Herisson F. Santos, Túlio H. Panzera, Francisco A. R. Lahr, Eduardo Chahud, Luis A. M. N. Branco, André L. Christoforo
Publikováno v:
Buildings, Vol 13, Iss 7, p 1851 (2023)
Recently, castellated columns have been increasingly used in buildings because of their flexibility, easy compatibility and potential savings due to less steel consumption. However, there is a lack of research related to the subject. In view of that,
Externí odkaz:
https://doaj.org/article/448fad45acf946198cb4993baa2735f8
Autor:
Sérgio A. M. da Silva, Larissa Q. Minillo, Vinícius B. de M. Aquino, Francisco A. R. Lahr, André L. Christoforo
Publikováno v:
Engenharia Agrícola, Vol 41, Iss 1, Pp 107-111 (2021)
ABSTRACT The use of alternative materials such as lignocellulosic residues in the production of particleboards has increased considering that these residues are produced in large volumes and often do not have an appropriate destination. This research
Externí odkaz:
https://doaj.org/article/7e6b98e3664e4a75bf3a3e0f93743680
Autor:
André L. Christoforo, Diego H. de Almeida, Luciano D. Varanda, Tulio H. Panzera, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 40, Iss 2, Pp 232-237 (2020)
ABSTRACT Wood has been used for several purposes such as in civil and rural construction. Knowing wood mechanical behavior under short-term loading is essential for safer structural designs. However, wood toughness is a mechanical property little inv
Externí odkaz:
https://doaj.org/article/919368e8cbd74ce8af30b4fa58b1fdfd
Autor:
André L. Christoforo, Thaina Q. Barbosa, Diego H. de Almeida, Tulio H. Panzera, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 40, Iss 2, Pp 238-242 (2020)
ABSTRACT This research aimed to evaluate the effect of the number of fatigue cycles (NC, 0 – reference, 450, 4500, 45000, and 90000) for frequencies (Fr) of oscillation equal to 0.5 and 1.0 Hz on the modulus of elasticity (Em) and operating stress
Externí odkaz:
https://doaj.org/article/9870a13d09bb4fa19f9638f7385a53cc
Autor:
André L. Christoforo, Natalia G. Couto, João P. B. Almeida, Vinicius B. de M. Aquino, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 40, Iss 1, Pp 105-112 (2020)
ABSTRACT The use of new wood species in construction requires knowledge of their properties for safer and more economical structural sizing. In Brazil, structural projects are carried out according to the standard document ABNT NBR 7190:1997. Tests r
Externí odkaz:
https://doaj.org/article/b12cb44283384c29997ce1fc11496071
Autor:
André L. Christoforo, Vinicius B. de M. Aquino, Anderson R. V. Wolenski, Victor A. De Araujo, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 39, Iss 6, Pp 763-768 (2019)
ABSTRACT Wood is a material used for various purposes since ancient times and is mainly used in civil and rural construction and industry. Due to the predatory exploitation of known trees, it is necessary to characterize new species for use in urban
Externí odkaz:
https://doaj.org/article/83b4cf7024ca4bc5914c225a767ccc4c
Publikováno v:
Engenharia Agrícola, Vol 39, Iss 4, Pp 533-536 (2019)
ABSTRACT According to the ABNT NBR 7190: 1997 standard, tensile strength of wood samples shall be defined as the ratio between the ultimate strength from a stress test and the specimen cross-sectional area (350 mm2). However, due to the complex wood
Externí odkaz:
https://doaj.org/article/6845a5382cef447daa442bbd5df67357
Autor:
André L. Christoforo, Tiago H. de Almeida, Diego H. de Almeida, Giovana G. Balanco, Francisco A. R. Lahr
Publikováno v:
Engenharia Agrícola, Vol 39, Iss 3, Pp 365-369 (2019)
ABSTRACT Wood is one of the main materials used in the constructing of covering structures (roofs) because of its versatility. Under this situation, due to solar radiation incidence, the temperature can exceed 60 °C and, such as other environmental
Externí odkaz:
https://doaj.org/article/50bc227d2add42a4bb1511883d42f4a0