Browsing Engineering by Issue Date
Now showing items 1-20 of 2223
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A non-linear rheological model describing time-dependent deformations and failure
(1975) [Journal article]A rheological model to describe non-linear deformations and failure is proposed. For the case of constant stress expressions of instantaneous and time-dependent deformations are developed. There is an acceptable agreement ... -
Possibilities of nuclear powered agro-industrial complexes for iran
(1979) [Journal article]Nuclear powered industrial and agro-industrial complexes are new concepts that can make major contributions to industrial, agriculatural and general economic advancement in Jran. The production of wer,. water and steam ... -
Data processing section for microprocessor-like integrated circuits
(1981) [Journal article]A methodology for the design of complex logic VLSI circuits is presented. The target application is deseribed by an algorithm from which the structures of the control section and the data processing section of the integrated ... -
Criatividade & Biblioteconomia
(1982) [Journal article]Conceituação de criatividade como processo, mostrando as condições e técnicas necessárias ao seu desenvolvimento e salientando que a habilidade criativa é necessária a todas as funções da biblioteca a que o bibliotecário ... -
Confecção de dosímetro TL de LiF(Mg) pela técnica de sinterização
(1984) [Journal article]Visando obter dosímetros de estado sóiR!o, que fossem sensíveis, reprodutíveis, de fácil manuseio e que pudessem ser empregados na dosimetria pessoal, foi desenvolvida uma técnica de obtenção destes dosímetros no Brasil, ... -
Two-dimensional treatment of dispersion of pollutants in rivers
(1985) [Journal article]An experimental work to study the dispersion of non-degradable pollutants in the Jacui river, situated in the south of Brazil, has been performed. 82Br in the form of KBr was used as a tracer material. The experimental ... -
Finite elastoplastic deformations : basic concepts and applications
(1987) [Journal article] -
Observation of deterministic chaos in electrical discharges in gases
(1987) [Journal article]We report that dc-excited discharges in gases display current oscillations which develop into deterministically chaotic behavior. A period-doubling route to chaos characteristic of 1D maps is established for sealed discharges ... -
Implanted boron depth profiles in the az111 photoresist
(1988) [Journal article]The isotope 1OB has been implanted into the photoresist AZll1 in the 30–150 keV energy range. The corresponding depth profiles have been analyzed using the 1OB(n,a) 7 Li reaction. At 60 keV, the profile changes from a ... -
Thermal behavior and range distribution of 209bi implanted the into ai/v bilayer structure
(1988) [Journal article]350-keV 209Bi + was implanted into an A1 (1000 Å)/V bilayer system. The Bi depth distribution measured by Rutherford backscattering agrees well with predictions obtained via the Monte-Carlo simulation method (TRIM code). ... -
Medição da força produzida pelo solenóide sobre o núcleo móvel em bobinas usadas nos sistemas de partida
(1989) [Journal article] -
Considerações críticas sobre a evolução das filosofias de administração da produção : do "just-in-case" ao "just-in-time"
(1989) [Journal article]O presente trabalho procura, essencialmente, apresentar as duas grandes correntes filosóficas "puras" que embaçam atualmente a administração da produção e dos materiais: a filosofia tradicional (just-in-case) e a filosofia ... -
Start-up regimes for anaerobic fluidized systems treating dairy wastewater
(1990) [Journal article]Four anaerobic fluidised-beds were started-up on a dairy-type effluent of 5000rag COD litre-1 using different regimes: (a) two-phase; (b) Ca 2÷ addition; (c) polymer addition; and (d) control. Substrate removal eJ~ciencies ... -
A study of the effects of methanol in start-up of Uasb reactors
(1990) [Journal article]Upflow anaerobic sludge blanket reactors were started up, using a stepped loading regime, on a dairy waste prepared from raw ice-cream production waste from an ice-cream manufacturing plant. One UA SB was supplemented with ... -
Electropolymerization of pyrrole on iron electrodes. influence of solvent and electrolyte on the nature of the deposits
(1990) [Journal article]Electropolymerization of pyrrole on an iron electrode was carried out in different organic solvents such as ACN (acidic), PC (neutral), MeOH, THF, DMF and DMSO (basic) in the presence of 0.1 M N(Bu),PF, or N(Et),Tos. Two ... -
Probability distribution of forces and pressures on a square cylinder
(1992) [Journal article]Abstract Wind tunnel experiments on a three-dimensional square cylinder model revealed that, except perhaps on the frontal face, the probability distribution of pressures, forces or overturning moments are not normal ... -
Evidence of homoclinic chaos in the plasma of a glow discharge
(1992) [Journal article]Homoclinic chaos is shown to occur in the electric current measured on an electrical discharge in argon. We report a clear sequence of four hesitations followed by a reverse period doubling. The experimental signals are ... -
Recrystallization behavior of silicon implanted with iron
(1992) [Journal article]The solid phase epitaxial growth (SPEG) of amorphized Si layers implanted with Fe (1 X 1015 cm-², 100 keV) was investigated in the temperature range from 500 to 550 °C using Rutherford backscattering spectrometry. The ... -
Shc-slx : a levelized compiled, event driven interpreted vlsi simulator
(1993) [Journal article]This papers describes SHC-SLX, a new VLSI simulator based on the cooperation of two different mechanisms, levelized compiled code and event driven simulation. The compiled code mechanism is different from previously levelized ...
