Results 41 to 50 of about 5,066 (262)

Vibrational and Compositional Analysis Associated with the Color of Guadua angustifolia Kunth Variety Bicolor (GAKVB)

Advances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
The vibrational modes and compositional behavior of plant material of Guadua angustifolia Kunth Variety Bicolor (GAKVB) and the characteristics associated with color changes were evaluated by Raman, infrared, and energy‐dispersive X‐ray spectroscopy. In the vibrational spectra, the frequencies of 1598, 2099, and 845 cm−1 were associated with yellow and
J. I. Cárdenas, C. Vargas-Hernandez, Gang Liu   +2 more
wiley   +1 more source

Expansión lineal y punto de saturación de las fibras de la Guadua angustifolia Kunth

Colombia Forestal, 2018
La Guadua angustifolia Kunth es una especie de bambú que ha sido ampliamente utilizado en la construcción. Gracias a su capacidad de absorber agua, la G. angustifolia experimenta cambios en sus dimensiones, resistencia y rigidez debido a la variación del
Mateo Gutierrez Gonzalez, Jessika Isabel Bonilla Santos, Maria Fernanda Cruz Amado, Juan Guillermo Quintero Aranzalez   +3 more
doaj   +1 more source

Elastic Module Study of the Radial Section of Guadua angustifolia Kunth Variety Bicolor

Advances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
Elastic modulus of the radial section of the Guadua angustifolia Kunth variety Bicolor was studied by technique of propagation of acoustic waves; the signal time delay in the samples was used as the control parameter. The studies were carried out in the culm cross‐section in radial direction.
J. I. Cardenas, C. Vargas-Hernández, Steve Bull   +2 more
wiley   +1 more source

Structural analysis of a Guadua bamboo bridge in Colombia

Sustainable Structures, 2022
In recent years, scientists have focused their attention in developing sustainable materials that can boost the construction industry without causing damage to the environment.
Mario Alejandro Méndez Quintero, Caori Patricia Takeuchi Tam, Haitao Li   +2 more
doaj   +1 more source

Geometric and material effects on bamboo buckling behaviour [PDF]

, 2016
Bamboo is a functionally graded, sustainable construction material that has evolved to resist its primary loading in nature. This study focuses on the effects of geometric and material property variation along the culm length on the capacity of an ...
Bumstead J, Correal JF, David Trujillo, Douthe C, Duff CH, Eells P, Gere JM, Ghavami K, James Bumstead, Kamruzzaman M, Kent A. Harries, Li XB, Liese W, Michael Richard, Nugroho N, Shigematsu Y, Timoshenko SP, Trujillo D, Vaessen MJ   +18 more
core   +1 more source

The Decay Resistance and Hyphae Penetration of Bamboo Gigantochloa scortechinii Decayed by White and Brown Rot Fungi

International Journal of Forestry Research, Volume 2012, Issue 1, 2012., 2012
The decay resistance and hyphae penetration of bamboo Gigantochloa scortechinii decayed by white and brown rot fungi were investigated using scanning electron microscope (SEM). The bamboo grown in natural stand from three different age classes of 0.5, 3.5, and 6.5 years was harvested, oven dried, sterilised, and exposed to agar media containing 4% malt
Norul Hisham Hamid, Othman Sulaiman, Azmy Mohammad, Norasikin Ahmad Ludin, Piermaria Corona   +4 more
wiley   +1 more source

Mathematical system based on taper functions for distribution by structural product of culms in three giant bamboo taxa

Forest Systems, 2023
Aim of study: To generate a mathematical system to distribute structural products of bamboo culms. Study area: Northeastern region of the state of Puebla, Mexico. Materials and methods: Eighty-seven culms of Bambusa oldhamii Munro, Guadua aculeata
Casimiro ORDÓÑEZ-PRADO, Juan C. TAMARIT-URIAS, Adan NAVA-NAVA, Melchor RODRÍGUEZ-ACOSTA, Martha E. FUENTES-LÓPEZ   +4 more
doaj   +1 more source

Strength and thermal stability of enhanced metakaolin‐based geopolymer composites with sand and fibers

International Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
Abstract The growing demand for sustainable materials in construction and ceramics has driven interest in geopolymer technology as an eco‐friendly alternative to traditional cement‐based systems. Geopolymers, synthesized from aluminosilicate precursors like metakaolin, offer high mechanical performance, chemical resistance, and lower carbon footprints.
Ruy A. Sa Ribeiro, Marilene G. Sa Ribeiro, Devon M. Samuel, Ali Ozer, Prapassorn Numkiatsakul, Waltraud M. Kriven   +5 more
wiley   +1 more source

Effects of the Heterogeneity of the Landscape and the Abundance of Wasmannia auropunctata on Ground Ant Assemblages in a Colombian Tropical Dry Forest

Psyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012
To evaluate the response of the ant assemblages to different management practices in the tropical dry forests of southwestern Colombia, 10 sites that conserve forest fragments surrounded by pastures and sugarcane crops were sampled. Tuna‐fish baits placed on the ground in the three habitats captured 100 ant species (41 genera).
Rafael Achury, Patricia Chacón de Ulloa, Ángela Arcila, Jonathan D. Majer   +3 more
wiley   +1 more source

Sustainability calculation approach of guadua (Guadua angustifolia Kunth.) forests throughout the use of emergetic analysis

Acta Agronómica, 2017
The sustainability of guadua forests under management was assessed throughout the emergy analysis approach. The system analyzed correspond to guadua forest whose major product are culms for commercial purposes. In order to calculate the sustainability, available information on purchased inputs, renewable and nonrenewable natural resources as well as ...
Arango-Arango, Ángela María, Camargo-García, Juan Carlos, Castaño-Rojas, Juan Mauricio   +2 more
openaire   +4 more sources