Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Henry Ramos"'
Autor:
Hamdi Muhyuddin Barra, Henry Ramos
Publikováno v:
Recoletos Multidisciplinary Research Journal, Vol 11, Iss 2, Pp 33-39 (2023)
Metallic ceramic compounds, such as Ti3SiC2, are innovative materials that combine the properties of metals and ceramics. However, most methods used in synthesizing these materials employ high deposition temperatures. Hence, in this work, Ti3SiC2 thi
Externí odkaz:
https://doaj.org/article/2488b8de28754b65ada3428739b9bd92
Publikováno v:
Revista Hábitat Sustentable, Vol 13, Iss 2 (2023)
La presente investigación tiene como objetivo diseñar y caracterizar morteros de revoco a base de perlita y cal producida en Ecuador, con una resistencia mínima a compresión de 6.89 MPa, conforme lo establece el IRC 2018. Esto, con el fin de ser
Externí odkaz:
https://doaj.org/article/07dcfedf82c144bbafe56a7407ab43ef
Autor:
M. S. Fernandez, Henry Ramos
Publikováno v:
Science Diliman, Vol 15, Iss 1, Pp 66-70 (2003)
A locally designed rectangular parallelepiped, three-electrode Faraday cup system has been developed.Its design incorporates the capability of simultaneous extraction and deposition of the H– ions on substrates.The device functions to attain prescr
Externí odkaz:
https://doaj.org/article/2c29368f2b4b4f8594f1704e322cf68b
Publikováno v:
Science Diliman, Vol 11, Iss 2, Pp 39-43 (1999)
A plasma sputter-type negative ion source is used in the production of high grade coatings of zirconium mononitride (ZrN) on copper substrate. It presents a new approach for the production of ZrN thin films. The ion source was operated in its target/
Externí odkaz:
https://doaj.org/article/f1123b8ea6c74104bbf5d7c04327aa50
Publikováno v:
Science Diliman, Vol 10, Iss 1, Pp 21-30 (1998)
The beam profile of an existing plasma-sputter-type negative ion source with a titanium target is analyzed. The transverse characteristics of the ion beam are investigated and the deposition capability of the system is characterized. The ambient plas
Externí odkaz:
https://doaj.org/article/e2f1f2e828cb4294b718d827989d67ce
Autor:
Henry Ramos
Publikováno v:
Science Diliman, Vol 5, Iss 2, Pp 56-70 (1993)
A mass spectrometer system is developed to extract and analyze hydrogen ions from a volume plasma hydrogen ion source. A 180° magnetic deflection-type mass analyzer is coupled to NIPPER I (National Institute of Physics Plasma Experimental Rig I), a
Externí odkaz:
https://doaj.org/article/28bd0647968d436587b705aa9c62f1fa
Publikováno v:
Science Diliman, Vol 11, Iss 2, Pp 44-46 (1999)
The ion beam produced from a plasma sputter-type negative ion source with Zr target was analyzed, and the negative ion beam current was increased by focusing with an electrostatic Einzel lens. An Ar-N2 plasma at 7.0x 10-3 Torr (20%N2) with discharge
Externí odkaz:
https://doaj.org/article/67afb376f4594b98b6aae589825710a1
Publikováno v:
Memorias do Instituto Oswaldo Cruz, Vol 84, Pp 357-364 (1989)
The genera Fasciolaria Lamarck, 1799 and Leucozonia Gray, 1847 are represented in Northeastern Brazil by three species. Fasciolaria aurantiaca Lamarck, 1816; Leucozonia ocellata (Gmelin, 1791) and Leucozonia nassa (Gmelin, 1791). The three species ar
Externí odkaz:
https://doaj.org/article/00e97a42a3b8480bac5bda4b2043b2d2
Autor:
Henry Ramos Allup
El debate político contemporáneo está permanentemente influido por ideas formuladas hace siglos y obras escritas hace cientos de años. No es trivial que las teorías más trilladas en la actualidad hayan sido planteadas por algún pensador del cl
Publikováno v:
REVISTA CAATINGA; Vol. 7 No. 1 (1990); 44-56
Revista Caatinga; v. 7 n. 1 (1990); 44-56
Revista Caatinga
Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
Revista Caatinga; v. 7 n. 1 (1990); 44-56
Revista Caatinga
Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::ceb3dd30394b28ffea6a66f1e60439c7
https://periodicos.ufersa.edu.br/caatinga/article/view/2408
https://periodicos.ufersa.edu.br/caatinga/article/view/2408