thermal resistance of microorganisms
Báo cáo hóa học: " Thermal conductivity and thermal boundary resistance of nanostructures" pdf
... = 0.15 LJU), the period of the superlattice is comparable to that of the PMFP The qualitative interpretation of the results shows that the thermal contact resistance of the interface has a strong ... compared to the thermal conductivity of the superlattice with smooth interfaces For larger roughness, the thermal Page of 10 conductivity increases The initial decrease of the inplane thermal conductivity ... the in-plane thermal conductivity The qualitative interpretation of the results shows that the thermal contact resistance of the interface has a strong influence on the superlattice thermal conductivity...
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Báo cáo lâm nghiệp: "Frost resistance of seeds in Mediterranean oaks and the role of litter in the thermal protection of acorns" docx
... continuous performance of the freezer engine Thermal homogeneity was achieved through a microfan system arranged inside of the chamber This device provided a thermal stability of ± 0.1 ºC on set ... profiles for the four species studied (in increasing order of frost resistance) Exotherms represented are obtained from mean values of starting point, width and duration of data obtained in thermal ... ones found in continental areas of mediterranean climate, the range of frost resistances shown in those studies suggests the unfitness of endogenous mechanisms of stress evitation to overcome...
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Báo cáo y học: "Growth of Microorganisms in Total Parenteral Nutrition Solutions Without Lipid"
... at room temperature (24-27ºC) An aliquot of test solution was sampled at 0, 24, and 48 hours after the addition of microorganisms Measurement of viable microorganisms Each aliquot sampled was ... Effects of lipid and multivitamins on the growth of Staphylococcus aureus in peripheral parenteral nutrition solutions Clin Nutr 2005;24:706-707 Rowe CE, Fukuyama TT, Martinoff JT Growth of microorganisms ... 37ºC, the number of colony forming units (CFU) of each microorganism was counted for each plate The mean CFU of duplicate data was calculated for each aliquot, and the number of each microorganism...
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Inactivation of microorganisms in untreated water by a continuous flow system with supercritical CO2 bubbling
... irreversible destruction of the α-helix structure of protein enzyme Ballestra et al (1996) suggested that selective inactivation of enzymes could result from a drop of internal pH of the microorganisms ... means with standard errors of the results of triplicate experiments RESULTS AND DISCUSSION Inactivation of microorganisms in untreated water by SC-CO2 treatment The effect of CO2/sample flow rate ... efficiency of contact between CO2 and the microorganisms (Zhang et al., 2006) Therefore, it was considered that our present result was obtained by the difference of the penetration of CO2 into...
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Evaluation of the Characteristics of Microorganisms that Contribute to Denitrification in the Paddy Drainage Treatment Apparatus by Quinone Composition Measurement
... (Miura et al., 2007) Evaluation of denitrification activity of microorganisms Batch experiments for the evaluation of DNR, and a quinone analysis for the evaluation of the microorganism community ... composition used in quinone profiling can achieve a qualitative evaluation of the biomass and biological community structure in one analysis In this study, quinone compositions of microorganisms on the ... the electron transport chain for respiration of microorganisms The major type of quinone contained in each microorganism depends on the features of the microorganism (Collins’ and Jones, 1981)...
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Thermal properties of the vernacular buildings envelopes: the case of the "Sassi di Matera" and "Trulli di Alberobello
... consisted of the measurement of thermal conductance of two different typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi ... black-box methods, the thermal conductance of the wall With this particular type of construction of the monitored walls, it is not possible to use other methods of determination of thermal conductance ... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical...
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An experimental study on the thermal valorization of municipal and animal wastes
... Prof P Maravelaki for providing the thermal analysis equipment, Prof K Komnitsas, Dr D Zaharaki and Prof V Gidarakos from the Technical University of Crete, for part of the chemical analyses of ... of scientific committees for energy, environment, biofuels and hydrogen, as well as Member of the Board of Directors of the Greek Combustion Institute She is referee for General Secretariat of ... the activation energy of component j, g expresses the effect of ambient gas composition and f describes the change of surface reactivity as a function of the fractional burn off: As the function...
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Thermal evaluation of a sun tracking solar cooker
... hinged at the top of the cooker The main objective of this present work is to investigate two designs of solar cookers, to evaluate the thermal performance under different modes of operation such ... Al-Towaie [6] A series of out-door experiments were performed on the double-glazed solar cooker, Kumar [7] One of the earliest mathematical models to test the thermal performance of a Solar Cooker ... Figure The tracking system of the solar cooker The important parts of a hot box solar cooker include; a) outer box: the outer box of a solar heater is generally made of galvanized iron b) inner...
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Tài liệu TRANSIENT and STEADY STATE THERMAL ANALYSIS OF HEATSINK Pro/ENGINEER and Pro/MECHANICA Wildfire doc
... value of is a multiplier for the Q load of 50 Watts 15 A graph of the function can be seen by selecting Review Click the Graph button Create a Transient Thermal Analysis Create a transient thermal ... with increment of 0.004 m and total of 15 cuts Create a cut to accommodate the fan at the top of the heat sink Create another cut to facilitate the installation clamp The dimensions of the cut are ... correct, then click the Continue button For Model Type, choose Thermal Click the OK button Create a Surface Region On the top of CPU, the size of area in direct contact with the heat sink when the heat...
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Tài liệu Báo cáo khoa học: Thermal unfolding of smooth muscle and nonmuscle tropomyosin a-homodimers with alternatively spliced exons docx
... Studies of thermal unfolding of Tm may provide valuable information on the structure of Tm both free Thermal unfolding of nonmuscle tropomyosin in solution and bound to actin Thermal unfolding of ... temperature of the cooperative thermal transitions of Tm Replacement of exon 6b in Tm5a by exon 6a in Tm5b leads to additional increase in the thermal stability of Tm Results Thermal unfolding of recombinant ... Previous studies of thermal unfolding of skeletal Tm have allowed assignment of the thermal transitions to specific regions of Tm for skeletal a-Tm [8,9,14] Thermal unfolding of smTm (Fig 3A)...
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Tài liệu Báo cáo khoa học: Unfolding and aggregation during the thermal denaturation of streptokinase pptx
... out a preliminary characterization of the thermally induced aggregation of SK using a variety of techniques The results provide us with some of the properties of these high molecular mass aggregates ... fluorescence spectrum of a 10 lM solution of ANS in the presence and absence of 10 lM of SKA1, at pH 7.0 and 4.4 The presence of the fragment produces a large increase in the intensity of ANS fluorescence, ... Detection of temperature-induced SK aggregation by gel-filtration chromatography With the aim of identifying the nature of the irreversible processes occurring during the thermal denaturation of SK,...
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Tài liệu Thermal Processing of Foods : Control and Automation ppt
... Introduction 1.3 Properties of foods The properties of importance in thermal processing of foods are the physical (density, viscosity, and glass transition temperature), thermal (thermal conductivity ... properties of many foods as a function of their composition and temperature 1.4 Heating mechanisms Numerous methods exist for thermal processing of foods Some of these techniques include the use of steam ... implementation of this type of control and it can be applied to many types of heat exchangers The cascade is not required, but does offer the advantages of faster response and provides a view of the...
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Báo cáo "Correlation Effects in Atomic Thermal Vibration of fcc Crystals " pdf
... new procedure for study of DebyeWaller and of the atomic correlated vibration in XAFS theory Acknowledgements One of the authors (N V Hung) thanks Prof J J Rehr (University of Washington) for very ... potential of Cu and Ni compared to experiment [7] Figure 2: Temperature dependence of the calculated σ , u2 for Cu and Ni compared to experiment [7,8] dependence of the calculated MSRD σ2 of Cu and ... dependence of our calculated correlation function DCF C R of Cu and Ni is illustrated in Figure and their ratio with function u2 and Figure 3: Temperature dependence of the calculated DCF C R of Cu...
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Báo cáo khoa học: Specific cleavage of the DNase-I binding loop dramatically decreases the thermal stability of actin pot
... error of the given values of Tm did not exceed ±0.2 °C The relative error of the given values of DHcal did not exceed ±10% G-actin Results Effects of the D-loop cleavage on the thermal unfolding of ... [25– 27], G–F transformation of actin, and stabilization of F-actin by phalloidin and Pi analogs [28] Moreover, the effects of nucleotides on the thermal unfolding of F-actin have been studied ... studying the thermal unfolding of proteins Previous studies have shown that DSC can be successfully used to reveal the changes in the thermal unfolding of actin induced by interaction of G-actin...
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Báo cáo khoa học: Simultaneous improvement of catalytic activity and thermal stability of tyrosine phenol-lyase by directed evolution ppt
... Thr15 to Ala in the vicinity of the hydrophobic core induces a tighter binding of the cofactor in C freundii TPL, thereby reducing the decomposition rate of the cofactor by a Pictet–Spengler ... h in 200 mL of LB medium containing 100 lgÆmL)1 of ampicillin The cells were then suspended in mL of NaCl ⁄ Pi, mixed with an equal volume of Cellytic BÔ, treated for 30 with 20 lL of DNase (10 ... analysis of the consequent hits was also performed to investigate the simultaneous improvement of the activity and stability of Symbiobacterium toebii TPL, as a better structural understanding of how...
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Prediction of Reflection Cracking Resistance of Reinforced Asphalts - Dr Binh Vuong (ARRB/Swinburne Uni) pot
... produced similar maximum tension strains at bottom of the correction asphalt layer Strains induced by thermal contraction of concrete base 200 Tip of existing crack in concrete base Composite asphalt ... bottom of the correction asphalt layer Building on 50 years of road research Mode I failure at extended cracking condition • Comparison of tensile strains due to crack opening Strains induced by thermal ... routine practical use) www.arrb.com.au Building on 50 years of road research Australian experience • • Slow usage of ARMs to date due to issues of availability, constructability and predictability Trialled...
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ANTIBIOTIC RESISTANCE OF ESCHERICHIA COLI ISOLATED FORM POULTRY WORKERS, PATIENTS AND CHICKEN IN THE EASTERN PROVINCE OF SAUDI ARABIA ppt
... Table Comparison of pattern of resistance of E coli isolates from chicken and patients E coli-chicken isolates E coli-patient isolates t-test Drugs No tested % resistance No tested % resistance P-value ... coefficient of 0.7448 (P ϭ 0.021) However, resistance rates to individual drugs in E coli isolated from patients remained significantly lower than those of E coli chicken isolates with the exception of resistance ... 0157: H7 as a model of entry of a new pathogen into the food supply of the developed world Epidemiological Review 18, 29–51 Aronson AL (1975) Potential impact of the use of antimicrobial drugs...
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THE EFFECTS OF THREE ORGANIC CHEMICALS ON THE UPPER THERMAL TOLERANCES OF FOUR FRESHWATER FISHES potx
... 1944 Preliminary study of the thermal requirements of desert reptiles Bull Am Mus Nat Hist 83:261– 296 Lowe Jr CH, Vance VJ 1955 Acclimation of the critical thermal maximum of the reptile Urosaurus ... consist of a series of pools or billabongs where temperatures can reach up to 40ЊC in summer [48] The effects of the intensive use of pesticides on Australia’s aquatic ecosystems are of particular ... concentrations of selenate significantly (p Ͻ 0.05) decreased the CTMax of P promelas by 5.9ЊC [39] compared with that of the control Sublethal copper exposure significantly decreased the thermal tolerance of...
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Characteristics of siox nanowires synthesized via the thermal heating of cu coated si substrates
... general morphology and dimension of SiOx nanowires Figs 2a and b show the TEM images of the product, indicating that this raw material indeed consists of aggregates of nanowires Although most nanowires ... morphology of SiOx nanowires (Arrow 1: helical nanowires or nanosprings; Arrow 2: nanoparticles) The lower right inset of (a) is the SAED pattern of SiOx nanowires (c) HRTEM image of a single ... nanoparticle at the tip of the nanowire appears dark and have high contrast compared with the nanowire stem A thin amorphous layer of 3–8 nm thickness exists on the surface of nanoparticle at the...
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Large scale synthesis, characterization and photoluminescence properties of amorphous silica nanowires by thermal evaporation of silicon monoxide
... agglomerated clusters consisting of high density of nanowires The magnified view of a single cluster is depicted in the inset of Fig 2(d) These observations suggest that growth of nanowires in the present ... respectively, where high density of 1-D nanostructures in the form of wires having hundreds of micrometers length is clearly seen Fig 2(a) also reveals that several layers of nanowires were deposited ... case of amorphous nanowires whereas the latter is based on the three-step mechanism involving (i) diffusion of Si/SiOx vapors into the metal particles, (ii) formation of liquid droplet of metal...
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