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Effect of heat stress in tropical livestock and different strategies for its
Effect of heat stress in tropical livestock and different strategies for its

... concentration during thermal stress in dairy cows. Alteration in prolactin secretion may be associated with altered metabolic state of heat stressed animals. One possibility is that prolactin is involved in meeting increased water and electrolyte demands of heat stressed animals. ...
Pervaporation overview
Pervaporation overview

... In membrane separation cascades, the permeate of one stage constitutes the feed to a subsequent stage. The characteristics of pervaporation allow the design of pervaporation cascades for the recovery of the dilute feed components. p.e. Using an appropiate membrane, the target component is enrich in ...
as a PDF
as a PDF

... with tectonic, magmatic, hydrologic and/or climatic activity. Over 10000 global continental heat flow measurements [7] have been used to constrain the chemical and thermal structure of the lithosphere. However, it should be stressed that 90% of these measurements are from three continents; Europe, N ...
Model, software for calculation of AIT and its validation
Model, software for calculation of AIT and its validation

... time (IDT), and finally whether an incipient flame can propagate and what pressure can be generated. The last of these determines the extent of product contamination and damage to equipment, which has been the subject of other deliverables in the project. Self-ignition temperatures play in general a ...
Higher Frequencies Leading to Rising Power and EMI in
Higher Frequencies Leading to Rising Power and EMI in

... The concept is basically the same for an LED, except that the design carries heat away from the diode. As light output is increased, so is the heat generation in the device. EMI for an LED is typically associated with the LED driving electronics. In these increasing “power/frequency” applications, t ...
Full Text
Full Text

... The Parr bomb calorimeter method assumes SO2 formation as part of the general products of combustion, not as a side reaction. Since the Ellis experiment (8) result for the heat of combustion of L-cystine used to compute the correction factor for the heat of formation for sulfuric acid included SO2 f ...
Abstract
Abstract

... and Gasharov, 2001, etc.). The applied methodic is presented by Dobrev et al., 2004. The surface heat flow density (heat flow ) is a very important physical parameter that gives the most detailed information about the Earth’s natural heat. It can be used for estimating the resources of geothermal e ...
A Device for Measuring Thermal Conductivity of Molten Salt Nitrates
A Device for Measuring Thermal Conductivity of Molten Salt Nitrates

... the top of the tower in order to circulate the hot heat transfer fluid to the steam generator. The thermal energy within the heat transfer fluid is used to heat water past it’s vaporization temperature in order to influence a phase change to steam which is used to drive a steam turbine and produce ...
The Regulation of Body Temperature
The Regulation of Body Temperature

... cell mechanically. In addition, the increase in solute concentration of the cytoplasm as ice forms denatures the proteins by removing their water of hydration, increasing the ionic strength of the cytoplasm, and causing other changes in the physicochemical environment in the cytoplasm. Second, tempe ...
Thermochemistry Energy Energy is defined as the ability to do work
Thermochemistry Energy Energy is defined as the ability to do work

... U is therefore a state function of the system. It depends only on the present state of the system and not on the previous history or the path by which the system was prepared. Because we have no measure of the state of a system, or of the internal energy, we can only measure the change in the state, ...
Introduction to mantle convection 1 The fluid mantle
Introduction to mantle convection 1 The fluid mantle

... TW. This is only about 0.5% of the global heat flow. The total heat flow of all mantle plumes is only about 2.3 TW, which is about 6% of the global total heat flow. The plate mode of convection accounts for 90% of the heat coming out of the mantle, while the contribution from plumes is much less. Th ...
Wise, R.R., A.J. Olson, S.M. Schrader and T.D. Sharkey.  2004.  Electron transport is the functional limitation of photosynthesis in field-grown Pima cotton plants at high temperature. Plant, Cell Environment 27: 717-724.
Wise, R.R., A.J. Olson, S.M. Schrader and T.D. Sharkey.  2004.  Electron transport is the functional limitation of photosynthesis in field-grown Pima cotton plants at high temperature. Plant, Cell Environment 27: 717-724.

... Often, leaf pieces are floated on water. This ensures good thermal contact and good control over leaf temperature, but it means that one of the leaf surfaces will not have access to CO2. This heat stress will be very constant due to the large heat capacity of water. However, leaves in a natural envi ...
The Elusive Nature of Entropy and Its Physical Meaning
The Elusive Nature of Entropy and Its Physical Meaning

... The consequence of a process and cycle reversibility is most ingenious and far-reaching, see elsewhere [5]. Carnot’s simple and logical reasoning that mechanical work is extracted in heat engine due to the caloric (heat) passing from high to low temperature, led him to a very logical conclusion that ...
Review of biomaterial thermal property
Review of biomaterial thermal property

... It is well accepted in cryobiology that the temperature history and cooling rates experienced in biomaterials during freezing procedures correlate strongly with biological outcome. Therefore, heat transfer measurement and prediction in the cryogenic regime is central to the field. Although direct mea ...
x - Virginia Space Grant Consortium
x - Virginia Space Grant Consortium

... is a complex three-dimensional flow, known as secondary flow. This flow occurs where an axial turbine airfoil meets the inner or outer casing, known as the endwall (see Figure 1). In an axial gas turbine, secondary flows result in aerodynamic losses in a vane or blade stage, which can reduce the eng ...
Industrial Film Drying - White Rose Research Online
Industrial Film Drying - White Rose Research Online

... From Keey1 it may be observed that drying processes for web type substrates can be categorized into conduction, radiation, and convection style processes. Conduction processes are characterized by high levels of solid contact and the subsequent high material temperatures associated with ...
Sensitivity studies of flow parameters on the performance
Sensitivity studies of flow parameters on the performance

... tunnels, heating of the working fluid, air or nitrogen, to elevated temperature prior to its flow through the tunnel system is required. The schematic of a typical propulsion facility is shown in figure 1.The functional requirement of the hot shut off valve’s (HSV) are to isolate the high temperatur ...
Chapter 8 - Extras Springer
Chapter 8 - Extras Springer

... 8.1.5 Characteristics of Turbulence  Turbulence is comprised of irregular, chaotic, three-dimensional fluid motion, but containing coherent structures.  Turbulence occurs at high Reynolds numbers, where instabilities give way to chaotic motion.  Turbulence is comprised of many scales of eddies, ...
2011 Lynch JT
2011 Lynch JT

... loosely categorized into modifications of the airfoil leading edge 共not addressed here兲 and modifications to the entire passage endwall. Endwall-airfoil geometry can be altered to reduce secondary flows through the use of a contour. This category might be further subdivided into axisymmetric contour ...
**** 1 - indico in2p3
**** 1 - indico in2p3

... • Model coil to evaluate cable performance at 13 T – A common coil magnet design using Nb3Sn and Nb3Al • Heat transfer through electrical insulation – Measurement of the thermal performances in LHe – Thermal conductivity measurement ...
Effect of Temperature and Humidity on Evaporative Water Loss in
Effect of Temperature and Humidity on Evaporative Water Loss in

... a dew-point hygrometer (General Eastern model l lOODP) to measure the water content, then through U-tubes containing soda lime and Drierite to remove C0 2 and water vapor, and finally to an oxygen analyzer (Applied Electrochemistry model S-3A). Prior to each run, the C0 2 analyzer was calibrated wit ...
File - Mr Weng`s IB Chemistry
File - Mr Weng`s IB Chemistry

... • Average bond enthalpy is the amount of energy required to break one mole of bonds in the gaseous state averaged across a range of compounds containing that bond. • Breaking bonds is endothermic • Making bonds in exothermic • If the overall reaction is exothermic, the bonds have lost energy, are mo ...
Geoneutrinos and the energy budget of the Earth
Geoneutrinos and the energy budget of the Earth

... all the heat sources and the secular cooling of the Earth. The main energy source is the decay of radioactive elements in the Earth’s crust and mantle. The latter one is not directly measured. All the other sources of energy are small: when added together, they represent less than the uncertainty on ...
db3ch05.pdf
db3ch05.pdf

... Enhanced Single-Phase Turbulent Tube-side Flows and Heat Transfer SUMMARY: This section presents methods for predicting heat transfer and pressure drop for turbulent flows inside corrugated tubes, internally ribbed or finned tubes, and in tubes with twisted tape inserts. A brief review of prediction ...
Institutionen för systemteknik Department of Electrical Engineering Camera Chip
Institutionen för systemteknik Department of Electrical Engineering Camera Chip

... example, a forest or in water where a person is hard to spot. Some products, like the camera investigated in this thesis, operate passively by catching infrared light constantly emitted from all objects. Other use an infrared light source to light up the vicinity, the area still seems dark to the hu ...
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Economizer

Economizers (US and Oxford spelling), or economisers (UK), are mechanical devices intended to reduce energy consumption, or to perform useful function such as preheating a fluid. The term economizer is used for other purposes as well. Boiler, power plant, heating, ventilating, and air conditioning (HVAC) uses are discussed in this article. In simple terms, an economizer is a heat exchanger.
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