Zobrazeno 1 - 10
of 85
pro vyhledávání: '"D. M. A. COSTA"'
Publikováno v:
Metals, Vol 14, Iss 6, p 663 (2024)
In the present work, a study of the fatigue strength of two materials widely used in the production of molds, namely, the AISI P20 and AISI H13 steels, is presented. The tests were performed at a constant amplitude with a stress ratio of R = 0 using
Externí odkaz:
https://doaj.org/article/02e6488227824b06a37a2101e721a907
Publikováno v:
Tropical Agricultural Research, Vol 31, Iss 1, Pp 57-71 (2020)
The Root-lesion nematode, Pratylenchus loosi Loof inhabits all tea growing regions of Sri Lanka depicting a variety of symptoms and damage severities to affected tea. Though much has been researched on biology and control measures, isolate characteri
Externí odkaz:
https://doaj.org/article/4e9682a6ef9548b6af898133acbdbc6f
Autor:
W. A. P. G. Weeraratne, D. M. De Costa
Publikováno v:
Tropical Agricultural Research, Vol 30, Iss 1, Pp 32-43 (2018)
Fusarium wilt caused by Fusarium spp. is an economically important fungal disease of tomato and brinjal production areas in Sri Lanka. The study was carried out to identify Fusarium isolates infecting tomato and brinjal, and endophytic antagonists ba
Externí odkaz:
https://doaj.org/article/1f5b0f7a0d67475b81a0da184f0ca00a
Publikováno v:
Journal of Phytopathology. 171:189-205
Publikováno v:
Tropical Agricultural Research, Vol 30, Iss 4 (2019)
Root diseases have become an emerging biotic threat to Jak (A. heterophillus), grown in Sri Lanka. Isolation of the causal agents, identification and determination of the effect of selected microenvironmental factors and the crossinfection ability of
Externí odkaz:
https://doaj.org/article/b5ad76d237964868b38fc7235cbcc7ac
Autor:
Pedro Cunha Lima, Patrícia Freitas Rodrigues, Ana Sofia Ramos, José D. M. da Costa, Francisco Manuel Braz Fernandes, Maria Teresa Vieira
Publikováno v:
Materials, Vol 14, Iss 16, p 4455 (2021)
The interaction between the stress-induced martensitic transformation and resistivity behavior of superelastic NiTi shape memory alloy (SMA) was studied. Strain-controlled low-cycle fatigue up to 6% was monitored by in situ electrical resistivity mea
Externí odkaz:
https://doaj.org/article/c4318d2822884efeb7ebd03f6cd10b6d
Autor:
Luís Santos, Joel de Jesus, Luís Borrego, José A. M. Ferreira, Rui F. Fernandes, José D. M. da Costa, Carlos Capela
Publikováno v:
Metals, Vol 11, Iss 5, p 835 (2021)
This investigation concerns about of fatigue behavior under controlled loading and under strain control for hybrid specimens with parts produced with conventional processes in steel AISI H13 and the stainless steel AISI 420 and the rest part produced
Externí odkaz:
https://doaj.org/article/6d504b25df4d4f69a8e7fbf7deff0f6a
Autor:
C. Ranasinghe, D. M. De Costa, B. M. V. S. Basnayake, D. M. Gunasekera, S. Priyadharshani, N. V. R. Navagamuwa
Publikováno v:
Tropical Agricultural Research, Vol 29, Iss 4 (2018)
The present study was conducted to determine the potential of rhizobacterial species in managing Papaya Ringspot Virus Disease (PRSVD) and their ability to promote plant growth and yield and induce host plant resistance through the activity of defens
Externí odkaz:
https://doaj.org/article/54445e739f1a4eb48bffefa2eb5a42ea
Publikováno v:
Sugar Tech.
Autor:
M. A. R. Loja, D. M. S. Costa
Publikováno v:
AIMS Materials Science, Vol 3, Iss 3, Pp 808-831 (2016)
Functionally graded materials are commonly particulate composites characterized by a varying spatial distribution of the inclusion particles. Because of this, these materials possess a great suitability potential concerning to material properties, wh
Externí odkaz:
https://doaj.org/article/973d6bad91334e4d9fdb24a6d20eac3f