Thermal stress

A comprehensive numerical study was conducted in this study to evaluate the effects of construction technology factors including curing temperature, initial temperature of fresh concrete mixture, type of formwork, type of cement, and cement content on controlling thermal cracking in mass concrete.

18p visarada 28-04-2025 0 0   Download

In this study, the deflection and stress field of perfect and imperfect (with and without porosities) functionally graded (FG) cylindrical panels are determined following the first-order shear deformation theory (FSDT). The panel rested on the twoparameter elastic foundation (Pasternak foundation) under pressure loads and worked in a hygro-thermal environment.

6p vibenya 31-12-2024 4 2   Download

The main purpose of this project is Optimization of Automotive Brake Disc and analysis the unsteady state thermal behaviour of the dry contact between the brake disc and pads during the braking phase.

10p lucastanguyen 01-06-2020 20 3   Download

The article discusses the strength of concrete and other brittle materials in the case of nonuniform biaxial type of compression (σ1 > σ2 > 0) and triaxial compression of σ1 > σ2 = σ3 > 0  type (it was assumed that σ> 0 corresponds to compression). I

6p tohitohi 19-05-2020 20 1   Download

This paper presents a perfect analytical solution of the hyperbolic asymmetric heat conduction equation and the related thermal displacement equation within a long hollow cylinder (plain strain condition) exposed to a harmonic boundary condition.

10p tohitohi 19-05-2020 14 1   Download

This study focus on the behaviour and quantify initial physical properties of RCC, from the beginning of hydration to designated characteristic of RCC, in order to define the thermal evolution, thermal stresses. By doing this, the appropriate speed of construction can be established when building RCC dam project.

27p change01 05-05-2016 76 7   Download

Trehalose metabolism is an essential component of the stress response in yeast cells. In this work we show that the products of the principal genes involved in trehalose metabolism in Schizosaccharomyces pombe, tps1+ (coding for trehalose6-P synthase, Tps1p), ntp1+ (encoding neutral trehalase, Ntp1p) and tpp1+ (that codes for trehalose-6-P phosphatase, Tpp1p), interact in vitro with each other and with themselves to form protein complexes. Disruption of the gene tps1+ blocks the activation of the neutral trehalase induced by heat shock but not by osmotic stress.

9p system191 01-06-2013 29 4   Download

It is well established that in addition to its functional role in cell motility, cell division and intracellular transport, cyto-skeletal protein tubulin also possesses significant chaperone-like activity. In vitro studies from our laboratory showed that dimeric tubulin can prevent stress induced aggregation of substrate proteins, can resist thermal deactivation of enzymes and can also refold enzymes from their fully dena-tured state [Manna, T., Sarkar, T., Poddar, A., Roy-chowdhury, M., Das, K.P. & Bhattacharyya, B....

9p dell39 03-04-2013 36 3   Download

Symbiosis between cnidarian and photosynthetic protists is widely distri-buted over temperate and tropical seas. These symbioses can periodically breakdown, a phenomenon known as cnidarian bleaching. This event can be irreversible for some associations subjected to acute and⁄or prolonged envi-ronmental disturbances, and leads to the death of the animal host.

13p inspiron33 25-03-2013 41 4   Download

Environmental stress deleteriously affects every aspect of an ectotherm’s biological function. Frequent exposure of terrestrial insects to temperature variation has thus led to the evolution of protective biochemical and phy-siological mechanisms. However, the physiological mechanisms underlying the positive impact of fluctuating thermal regimes (FTRs) on the fitness and survival of cold-exposed insects have not been studied.

9p galaxyss3 21-03-2013 47 6   Download

Groups of oysters (Crassostrea gigas) were exposed to 25C for 24 days (controls to 13 C) to explore the biochemical and molecular pathways affected by prolonged thermal stress. This temperature is 4C above the summer seawater temperature encountered in western Brittany, France where the animals were collected.

11p media19 05-03-2013 33 2   Download

Induction of heat shock proteins (HSPs) helps cells to survive severe hyper-thermal stress and removes toxic unfolded proteins. At the same time, the cap-dependent translation of global cellular mRNA is inhibited, due to the loss of function of eukaryotic initiation factor (eIF)4F complex.

19p vinaphone15 27-02-2013 24 2   Download

Metal cutting puts extreme demands on the tool and tool material through conditions of high forces, high contact pressures, high temperatures, and intense chemical attack by difficult to cut work materials. In addition, the tool geometry and cutting conditions in terms of sharp edges, cyclic engagement and presence of cutting fluid will add to the severity. Most often cutting tools are used close to their ultimate resistance against these loads, especially to the limiting thermal and mechanical stresses. ...

14p cuunien 20-12-2010 118 18   Download