elevated temperatures
Fermentation systems for enhancement of ethanol productivity in Saccharomyces cerevisiae at elevated temperatures
... FERMENTATION SYSTEMS FOR ENHANCEMENT OF ETHANOL PRODUCTIVITY IN SACCHAROMYCES CEREVISIAE AT ELEVATED TEMPERATURES Armando Marsden Lacerda Filho A Thesis Submitted for the Degree of PhD a[r] ...
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Structure of Zr52Ti5Cu18Ni15Al10 Bulk Metallic Glass at Elevated Temperatures
... event were carried out to induce primary crystallization. Af- ter reaching the respective temperature, the samples were im- mediately cooled down to room temperature at − 100 K/min. In situ XRD measurements at ...
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Physiological mechanisms constraining ectotherm fright dive performance at elevated temperatures
... Ecological consequences of reduced fright-dive times Fright-dive durations were reduced by ∼ 50% at a water temperature reflective of predicted climate change (i.e. 34°C), compared with present-day summer ...
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Correlation of BAW and SAW properties of langasite at elevated temperatures
... A piezoelectric resonator operated at room temperature can be described by a one-dimensional physical model of vibra- tion, where electrical losses are very low and thus negligible. At elevated ...
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An analytical approach to modelling shear panels in steel beams at elevated temperatures
... Shear buckling of beam webs in the vicinity of beam-to-column connections has been observed in many full-scale fire tests. This phenomenon can lead to force redistribution within the adjacent connections, and even ...
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An analytical approach to modelling shear panels in steel beams at elevated temperatures
... Shear buckling of beam webs in the vicinity of beam-to-column connections has been observed in many full-scale fire tests. This phenomenon can lead to force redistribution within the adjacent connections, and even ...
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An investigation of overturning moments of portal frames at elevated temperatures
... In fire, the rafter often loses stability through a snap-through-buckling mechanism (see Fig. 1.). This, however, can be capable of restabilising at high deflections, when the roof has inverted. In static analysis ...
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Constitutive Model for High Strength Concrete (HSC) at Elevated Temperatures
... Abstract---The response of concrete structures under fire is very important as fire represents as an extreme loading and severe environmental condition to a structure. The use of High Strength Concrete (HSC) in concrete ...
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Strength of lightweight aggregate foamed concrete (LWAFC) exposed to elevated temperatures
... of elevated temperature (200 to 700 ˚C) on the residual mechanical ...high elevated temperatures resistance of foamed concrete is better in terms of the proportional loss in strength than normal ...
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Shear Capacity of Reinforced Concrete Beams at Elevated Temperatures
... This chapter proposes an analytical method to predict the shear capacity of Reinforced Concrete (RC) sections exposed to elevated temperatures. The limitations of current design codes and the importance of ...
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Local Buckling of SC Composite Walls at Ambient and Elevated Temperatures
... This paper presents the results of experimental investigations and finite element analysis of local buckling behavior of the steel faceplates of SC composite walls at ambient and elevated temperatures. This ...
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Studies on Impact Strength of Concrete with Nano Materials at Elevated Temperatures
... Experimental investigation was carried out to determine the effect of grade M20, M30, M40 of concrete. After 28 days of curing, all the specimens were air dried prior to high temperature exposure. The specimens were ...
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An Experimental Investigation on Effect of Elevated Temperatures on M35 grade Concrete
... extreme temperatures. It is important to know the effect of elevated temperature on the properties of ...of elevated temperatures on the compressive strength of normal concrete and on concrete ...
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Dehydration of bananas at elevated temperatures.
... Food drying is an expensive and energy-intensive process, which requires long time treatment at elevated temperatures. The osmotic dehydration is immersed banana in a concentrated hypertonic solution ...
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Buckling response of ferritic stainless steel columns at elevated temperatures
... 3.1.2 Elevated temperature material properties The performance of finite element models is highly sensitive to the prescribed material parame- ters, hence making an accurate representation of the material ...
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Experimental Study on Ternary Blended Concrete under Elevated Temperatures
... under elevated temperatures was more pronounced for mix having river gravel as an aggregate, because of the presence of siliceous components of the river ...
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Studies on Impact Strength of Concrete with Nano-Metakolin at Elevated Temperatures
... At elevated temperatures, the structure of Portland cement paste changes, which might affect the strength and permeability of cement ...at temperatures from 105°C to 400°C, and is partly transformed ...
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Evaluation of Strength of Concrete in Structures Subjected to Sustained Elevated Temperatures
... In conclusion, sustained exposure to elevated temperatures without any seal may cause a significant strength reduction especially in tensile, shear and bond strengths. Estimates of strength distribution in ...
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STUDY ON HIGH-DENSITY CONCRETE REINFORCED WITH STEEL FIBER AT ELEVATED TEMPERATURES
... constant heat is achieved in the furnace. NC specimens have shown considerable increase in strength with varying steel fiber content. When exposed to elevated temperatures steel fiber has helped in reducing ...
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A CFD model of erosion-corrosion of Fe at elevated temperatures in aqueous environments
... Erosion-corrosion by solid particles has been the subject of much interest in the past decades due to the fact that this is a technologically challenging issue in many environments, ranging from room to elevated ...
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