thermal barrier and body temperature regulation
Báo cáo y học: "Spontaneous internal desynchronization of locomotor activity and body temperature rhythms from plasma melatonin rhythm in rats exposed to constant dim light" docx
... of locomotor activity and body temperature are under circadian control, and, although the level of activity may influence the body temperature, the circadian rhythm of body temperature is not a ... activity and body temperature has been investigated in few studies In humans, it has been reported that the body temperature rhythm is phase-advanced with respect to the activity rhythm [16] and, ... animal in which Rw and Tb were arrhythmic further suggests that the regulation of melatonin rhythmicity is independent from the regulation of the running wheel activity and body temperature rhythms...
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Báo cáo sinh học: " Body size and developmental temperature in Drosophila simulans: comparison of reaction norms with sympatric " docx
... species (0.71 ! 0.06 and 0.76 ! 0.16) Sexual dimorphism was calculated at each temperature and for each line as the and submitted to ANOVA (not shown) For wing and thorax, only the temperature effect ... °C) and the wing/thorax ratio (21-31 °C), high temperatures and for the thorax over the whole temperature range Mean values for the seven temperatures are, respectively for wing, thorax, and ... possible maternal effects and provides HardyWeinberg proportions within lines From each line at each temperature, ten females and ten males were randomly taken Their wing and thorax lengths were...
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Báo cáo khoa học: "Wet Belly in Reindeer (Rangifer tarandus tarandus) in Relation to Body Condition, Body Temperature and Blood Constituents" pdf
... with temperatures above °C during some days On day the temperature dropped Particularly cold nights, and minimum temperatures below -27 °C, occurred on days 13, 20 and 21 In Exp the mean temperature ... PS and SP) gained body weight (on average 2.5, 1.7 and 0.9 kg, respectively, during the whole experiment), while reindeer in the lichen-fed groups (groups L and C) lost some body weight (-2.0 and ... in groups PL and PS (n=8) and WBreindeer in groups SP, PL and PS (totally 11, but not sampled until they showed signs of wet belly and lost during the experiment, see Table 2) Body temperature...
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BS 845 1 1987 assessing thermal performance of boilers for steam, hot water and high temperature
... drafting of the standard, through sub-committees and panels: This British Standard, having been prepared under the direction of the Refrigeration, Heating and Air Conditioning Standards Committee, ... 2.7 indirect procedure the determination of thermal performance by the assessment of the thermal losses and the measured thermal input or output Major thermal losses are determined directly from ... Steam pressure and feed water temperature or, for hot water boilers, the flow and return temperatures, together with the relevant flow rates, shall be held as steady as possible and at levels...
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Thermal stresses and temperature control of mass concrete
... Thermal Stresses and Temperature Control of Mass Concrete Thermal Stresses and Temperature Control of Mass Concrete Zhu Bofang China Institute of Water Resources and Hydropower Research and ... Theory and Applications of the Finite Element Method (1st ed in 1979, 2nd ed in 1998, 3rd ed in 2009), Thermal Stresses and Temperature Control of Mass Concrete (1999), Thermal Stresses and Temperature ... thermal stress between steel structure and concrete structure: (a) thermal stress in a steel bar with fixed ends and (b) thermal stress in a concrete bar with fixed ends 4 Thermal Stresses and...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 1
... number model (Bi > 10) of thermal explosion where heat losses within the system are controlled by thermal conductivity, and that the temperature of the surface and the ambient temperature are equal ... side lengths of 51, 76 and 102mm (Hill and Quintiere 2000) and 89mm cube of cooked and uncooked wood blocks, chips and sawdusts (Cuzzillo 1997) In addition to Semenov model and Frank-Kamenetskii ... sink; temperature inside wood is lower and it creates a temperature gradient for which to maintain the influx of heat from the surface The depressed temperature curve does not reflect the right temperature...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 2
... thermodynamic temperature of solid (Ts ) as = K1 exp(− K / Ts ) pv , sat where K1 and (2.8) K are constants which depend on the temperature range, and K1 4.143 ×1010 Pa and K = 4822 K in the temperature ... cracks and fissures at the char surface, since high -temperature drying occurs just incipient of or in tandem with flaming combustion The formation of cracks and fissures greatly affects the heat and ... zone (Zone A) and the wet zone (Zone C) (Schrader and Litchfield 1992) The capillary effect still causes water diffusion and vapour generation depends on moisture content (X) and temperature (T)...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 3
... rapid and erratic velocity profile S-curve temperature profile COUPLED VELOCITY AND TEMPERATURE DEVELOPMENT IN SELF-HEATING Figure 3.1: Salient features of porous models for low -temperature ... involved The temperature rise is simulated in order to derive the ignition temperature and critical heat flux The details on pure thermal model are discussed in Chapter 4; the data on ignition temperature ... negligible during drying Liquid and gaseous transport is dominant and responsible for internal heat transfer, through diffusion and convection Pyrolysis is negligible at low temperature drying 80 Chapter...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 4
... critical ignition temperature of 200ºC In this study, the same critical size and critical ignition temperature is used: Kapur wood was sized into 89mm cubes and placed in an isothermal oven maintained ... oven air temperature The location and distribution of thermocouples are shown in Figure 4.3 and Figure 4.4 respectively 80 Chapter 4: Spontaneous Heating and Cone Calorimeter Ignition Tests and Experiments ... anything between several tens of minutes and up to one and half hours have elapsed (Babrauskas and Parker 1987, Spearpoint and Quintiere 2001, Mikkola and Wichman 1990, Janssens 1991b) Therefore,...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 5
... characteristic bands measured around 3500 cm-1 and 1630 cm-1 are ascribed to atmospheric water vapors and the bands at 2350 cm-1 and 667 cm-1 are attributed to carbon dioxide (Hshieh and Richards ... these wood chars to high temperatures Unlike high -temperature carbonized chars (Bradbury and Shafizadeh 1980b, Hshieh and Richards 1991) that were created at heat treatment temperatures (HTT) ranging ... furnace temperature was immediately cooled to the chemisorption temperatures (CST) In each run, a few minutes of holding time were allowed for the chemisorption temperature to equilibrate and to...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 6
... (439.7°C and 400°C) and measured surface temperatures (345.4ºC and 342.4ºC) The exceedingly long heating time, which was more than two hours in G7 and G8, probably has caused changing thermal ... surface temperature criterion (Thomas, Simms and Theobald 1959, Lawson and Simms 1952, Simms 1960, Simms 1963, Simms and Law 1967, Atreya 1983, Janssens 1991a) In Table 6.1, the measured surface temperatures ... at 300°C and the highest at 470°C This simulated temperature range was consistent with results obtained from other heat conduction thermal models (Lawson and Simms 1952) These surface temperatures...
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Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 7
... self-heating and spontaneous combustion of low -temperature, long-term preheated wood, targeted to minimize unwanted fires arising from the wood structures and construction in historical and modern ... The next section presents the conclusions and contribution of knowledge to the thermal combustion and propensity of preheated wood chars exposed to low -temperature, long-term heating Recommendations ... respective research findings 7.2 Conclusions and Recommendations The research findings contribute to the body of knowledge on thermal combustion and oxygen chemisorption of wood in the following...
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Mcgraw Hill 400 Must Have Words For The Toefl - Mind and Body
... meaning of life and death on the high seas Mind and Body 64 How would the author explain phantom ships? a b c d Their appearance is tied to the stars Sailors at sea have little to Fog and high waves ... Companies, Inc Click here for terms of use Mind and Body 48 be inclined to v To favor an opinion or a course of action He couldn’t say which candidate he favored, but he had always been inclined ... articles on Church history and working in the peacemaking in both the ecclesiastical and secular press, position of church leader.” broadening the Church’s image both in Russia and abroad Which sentence...
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Tài liệu Báo cáo khoa học: Time-dependent regulation analysis dissects shifts between metabolic and gene-expression regulation during nitrogen starvation in baker’s yeast doc
... products and effectors (X), and by changes in the affinities (1 ⁄ K) of enzyme e towards its substrates, products and effectors (K) As derived previously [6,7], gene expression and metabolic regulation ... metabolites Earlier regulation analysis studies of nitrogen starvation in yeast revealed mixed and diverse regulation [9] Both gene expression and metabolism contributed to the overall regulation, but ... initial regulation will be purely hierarchical Such ‘multisite regulation [19] would lead to initial metabolite homeostasis and a lack of metabolic regulation Alternatively, metabolic regulation...
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Tài liệu Báo cáo khoa học: Brain angiogenesis in developmental and pathological processes: regulation, molecular and cellular communication at the neurovascular interface pdf
... physical barrier resulting from tight, adherens and gap junctions enhances transcellular, rather than paracellular, transport when the brain parenchyma Regulation of angiogenesis and barriergenesis and ... insulin, transferrin and leptin, to cross the BBB [13] Molecular basis of brain angiogenesis and barriergenesis Hypoxia and the hypoxia-inducible factor system As an embryo develops and its structure ... ª 2009 FEBS 4623 Regulation of angiogenesis and barriergenesis H S Lee et al the importance of HIF-1a in the development of brain vasculature and other tissues Reoxygenation and the SSeCKS/AKAP12...
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Tài liệu Báo cáo khoa học: Arginine ethylester prevents thermal inactivation and aggregation of lysozyme pptx
... and determined the apparent Tm Results Thermal inactivation and aggregation of lysozyme in the presence of additives Figure shows the thermal inactivation and aggregation of lysozyme at pH 7.1 ... of inactivation and aggregation under several different conditions are shown in Table The rates of inactivation and aggregation depend on the protein Fig Thermal inactivation and aggregation ... 3244 K Shiraki et al (Eur J Biochem 271) Table Rates of thermal inactivation and aggregation in the presence of additives Thermal inactivation and aggregation in the presence or absence of 100 mM...
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Tài liệu Báo cáo khoa học: Prevention of thermal inactivation and aggregation of lysozyme by polyamines docx
... spermidine, and spermine were 8.0–8.5, whereas those of the primary amines were 10.0–11.1 [34] In biophysical aspects, polyamines can bind with nucleic acids and phospholipids, and stabilize and regulate ... Science, Sports and Culture of Japan (14350433, 14045229), a grant from the Science and Technology Incubation Program in Advanced Region by JST (Japan Science and Technology Corporation), and the Sasakawa ... correlation between cooling time and concentration of soluble protein may be explained by the prolonged thermally unfolded state of the protein with longer cooling times At temperatures above 84 °C,...
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Tài liệu AMD Thermal, Mechanical, and Chassis Cooling Design Guide docx
... Temperature Testing" on page 13, and added Figure through Figure 10 Initial release based on AMD Athlon Processor Family Thermal Cooling Requirements Version 2.1 ix AMD Thermal, Mechanical, and ... 2002 AMD Thermal, Mechanical, and Chassis Cooling Design Guide AMD Thermal, Mechanical, and Chassis Cooling Design Guide This document specifies performance requirements for the design of thermal, ... particular thermal solution AMD Thermal, Mechanical, and Chassis Cooling Design Guide 23794H—November 2002 PGA Socket A-Based Processor Thermal Requirements The first step to achieving proper thermal...
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Báo cáo " Anti-obesity and body weight reducing effect of Fortunella japonica peel extract fractions in experimentally obese mice " docx
... decreasing body weight and blood lipid, FDA) - Lot and lot did not treated with mandarin peel extracts were expressed the increase of body weight from 4% to 9.5% 50 45 40.30 40.01 Body ưeight ... fraction and drinking water ad libitum + Lot 5: Obese mice treated with metformin (500mg/kg) and drinking water ad libitum + Lot 6: Obese mice fed normal diet and drink water (no treatment) and drinking ... repeated oral administration of mandarin peel extracts was prove clearly on decrease of body weight of obese mice - The body weight of all the obese mice treated mandarine peel extracts decreases...
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Báo cáo " Anti-obesity and body weight reducing effect of Docynia indica (Wall.) Decne fruit extract fractions in experimentally obese mice " doc
... National Institute of Hygiene and Epidemiology (NIHE) were housed in a temperature (25 ± 20C) and humidity (80% ± 10 %) under a 12h light/12 h dark cycle Diets and tap water were provided ad ... was prove clearly on decrease of body weight fig Lot used Metformin the body weight of mice decreased 11.7 % (Drug Metformin has effect on decreasing body weight and blood lipid, FDA) Lot did not ... HDL-c and LDL-c concentrations was carried by Olympus Analyzer AU400, (Japan) - The obtained data were calculated by biological statistics with MS-excel Results and discussion Materials and methods...
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