carbon trust steam and high temperature hot water boilers
Báo cáo hóa học: " Carbon-assisted growth and high visible-light optical reflectivity of amorphous silicon oxynitride nanowires" doc
... substrate and their adjustablephotoluminescence. J Non-Cryst Solids 2010, 356:2207-2210.doi:10.1186/1556-276X-6-469Cite this article as: Zhang et al.: Carbon- assisted growth and high visible-light ... studied using aDatacolor Elrepho photospectrometer (Datacolor ELRE-PHO, Lawrenceville, NJ, USA), and their photolumines-cence (PL) measurement was conducted at room temperature using an FP-6500 ... fabrication process. XL, WL and TL carried outtesting of samples. ZT conceived and designed the experiments. LZ, SX and ZT wrote the manuscript. All authors read and approved the finalmanuscript.Competing...
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Báo cáo hóa học: " Enhancements of thermal conductivities with Cu, CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a water chiller syste" docx
... nanoparticles.The standard test of chiller is performed with standard water chiller rating condition: water inlet temperature at7°C (T1), water outlet temperature at 12°C (T2), and at aflow rate ... added to water basefluid. The c ity water (tap water) was used due to thelarge amount of water is needed for a 10-RT water chil-ler.ThevolumefractionofMWNT/waterwas0.001(0.1 vol.%) and the ... te st was first performed with the standard water chiller rating condition: water inlet temperature at7°C (T1), water outlet temperature at 12°C (T2), and at aflow rate of 85 L/min.Tests...
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Báo cáo hóa học: " Self-assembled GaInNAs/GaAsN quantum dot lasers: solid source molecular beam epitaxy growth and high-temperature operation" pptx
... with high temperature operationup to 65 °C, high T0of 79.4 K, and low Jthof 1.05 kA/cm2. Though these results are still inferior compared totheir GaInNAs QW counterparts [3–19] and In(Ga)AsQD ... GaInNAsmaterials grown on GaAs substrate for realizing low-cost, high- performance and high- temperature laserdiodes in the 1.3 lm and 1.55 lm wavelength region.So far, GaInNAs QW laser performance ... lm2)at10°C. High- temperature operationup to 65 °C was demonstrated from an unbondedGaInNAs QD laser (50 · 1,060 lm2), with high char-acteristic temperature of 79.4 K in the temperature range...
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Báo cáo khoa học: Hyperthermophilic enzymes ) stability, activity and implementation strategies for high temperature applications pot
... functional and stable at high temperatures, and adapted to low temperature environments. However, another theory suggests thathyperthermophiles arose from mesophiles via adapta-tion to high temperature ... thermophilic and mesophilic proteins at room temperature and increases with temperature, so as to allow for enzy-matic activity near 100 °C. It is only upon achievingthese high temperatures ... also able to withstand high tem-peratures.Strategies for enhancing thermalstability and activity ofhyperthermozymesCrucial for the development and optimization of high- temperature biocatalysis...
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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing
... dioxide, carbon monoxide and ammonia orethanol vapors can be highlyimproved by dispersingan adequatequantity of carbon nanotubes into a metal oxide matrix.In this paper, we study and compare ... the presence of NO2 and CO both at ambient tem-perature and 150◦C. Three concentrations of each gas understudy were measured: 100, 200 and 500 ppb for NO2; and 1, 10 and 50 ppm for CO. The ... chemical vapor deposition (CVD), hadpurity higher than 95%, were up to 50 m in length and theirouter and inner diameters ranged from 15 to 3 nm and 7 to 2 nm,respectively.A uniform functionalization...
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carbon nanotube array thermal interfaces for high temperature silicon carbide devices
... inclusions, small-angle boundaries, and screw dislocations.Particularly relevant to high- temperature environments is the bandgap energy ofSiC. At room temperature, the bandgap of 4H-SiC (the most attractive ... interfaces aresuitable for high- temperature power electronics applications.KEY WORDS: carbon nanotube, thermal interface resistance, silicon carbide, high- temperature, photoacousticINTRODUCTIONSilicon ... materials and exhibit weak temperature dependence from room tempera-ture to 250C. These characteristics make MWCNT arrays an excellent candidate toaddress the thermal management needs of high- temperature...
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Báo cáo hóa học: " Self-propagating high-temperature synthesis of nano-TiCx particles with different shapes by using carbon nano-tube as C source" doc
... key step to form TiCx, and thus differ-ent carbon sources, i.e., graphite and C black, have greateffects on the product morphology and the reaction rateof [Ti] and [C] to form TiCx. Generally ... samples were then dissolved in a saturatedFeCl3 water solution, and the reacted Al- and Fe-Ti-CNTsamples were dissolved in an 18 vol.% HCl- distilled water solution, to remove the Me coatings on ... TiB2powder by a self-propagating high- temperature synthesis technique. Mater Lett 2004, 58:733-738.13. Khanra AK, Pathak LC, Mishra SK, Godkhindi MM: Self-propagating -high- temperature synthesis (SHS)...
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Báo cáo hóa học: "Two novel low-power and high-speed dynamic carbon nanotube full-adder cells" pdf
... novel low-power and high- speed dynamic carbon nanotube full-adder cellsMehdi Bagherizadeh1* and Mohammad Eshghi2AbstractIn this paper, two novel low-power and high- speed carbon nanotube ... Bagherizadeh and Eshghi: Two novel low-power and high- speed dynamic carbon nanotube full-adder cells. NanoscaleResearch Letters 2011 6:519.Submit your manuscript to a journal and benefi t from:7 ... 0” and COUToutput is unch anged and it is equal to “1.” At this phase when SIGMA is “1,”the T1, T2, and T3 transistors are “off.” As a result, bothoutputs, SU M and COUT, are unchanged and...
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Research for Agricultural Sciences:" Effect of high temperature fluidized drying and tempering on head rice yield and mechanical strength of Vietnamese rice varieties " doc
... (HRY) and fissured kernels for A10 and OM2717 varieties. 87 Table 2: Mechanical breaking strength of low temperature (35oC) and high temperature dried rice (dried for 2.5 and ... drying temperature of 800C and 900C for 2.5 and 3.0 min. Reference HRYs of A10 and OM2717 were 54.5% and 43.26%, respectively (triangular dot). 84 Table 1. Main effects and interaction ... low temperature drying at 35oC, the mechanical strength of the rice kernels was higher at high temperature drying (Table 2, Figure 8). This value was significantly higher at 90oC drying temperature...
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Báo cáo vật lý: "PHONON SPECTRA OF HIGH TEMPERATURE SUPERCONDUCTOR Bi2Sr2Ca2Cu3O10: THEORY AND EXPERIMENT" potx
... Spectra of High Temperature Superconductor 56 pelletized and heated till the reaction was complete and a good homogeneity is ensured. Appropriate amount of the matrix and BiO3 were mixed and pelletized ... support in understanding the phonons spectra of the high temperature superconductors. Hence, the present approach is useful not only to obtain all the phonons frequencies of high temperature superconductor ... SPECTRA OF HIGH TEMPERATURE SUPERCONDUCTOR Bi2Sr2Ca2Cu3O10: THEORY AND EXPERIMENT S. Mohan* and P. Murugesan School of Applied Sciences, PR Institute of Science and Technology,...
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High Temperature Strain of Metals and Alloys Part 1 ppt
... 978-3-527-31338-9ISBN-10: 3-527-31338-9 Valim Levitin High Temperature Strainof Metals and Alloys High Temperature Strain of Metals and Alloys, Valim Levitin (Author)Copyrightc 2006 WILEY-VCH ... materials at high temperatures.This book treats data from experimental measurements of important struc-tural and kinetic characteristics which are related to physical fundamentalsof the high- temperature ... creep) and deformation under constant strain rate˙ε. Physical distinctions between these two processes are not essential. Inthis book we shall use the definitions high- temperature strain” and high- temperature...
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High Temperature Strain of Metals and Alloys Part 2 pptx
... beendetermined by the X-ray method at high temperatures.Pure metals, solid solutions and nickel-based superalloys have been stud-ied. High Temperature Strain of Metals and Alloys, Valim Levitin (Author)Copyrightc ... furnaces. The specimens for high- temperature tests were prepared from hot- rolled rods. A standard heat-treat-ment of every superalloy included the solution treatment and one-step ortwo-step ageing ... between values Qin and QTbecause theincrease in temperature influences Q and the fraction in Eq. (2.9) in oppositedirections.Measurements of Iin and Idas well as Iin and ITare performed...
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High Temperature Strain of Metals and Alloys Part 3 pdf
... conditions (temperature and stress).The substructure formation during high- temperature strain in vanadiumis shown in Figs. 3.6 and 3.7. The data are obtained at the same temperature 0.6 Tm, ... vacancy loops and heli-coids: (a), (b) Iron tested at T = 973K and =10MPa; ì46 000. (c) Niobiumtested at T = 1508K and =17.3MPa;ì39 000. 38 3 Structural Parameters in High- Temperature Deformed ... kinks and loops that have been observed in this workfor different metals show convincingly that the formation of jogs takes placeduring high- temperature deformation.Assuming that the kinks and...
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High Temperature Strain of Metals and Alloys Part 4 ppsx
... at High TemperaturesNow we can calculate the rate of the steady-state high- temperature defor-mation ˙ε. Three groups of physical parameters are needed:ã External parameters: temperature T and ... Mechanism and Structural Model of Strain at High Temperatures4.1Physical Model and TheoryIt follows from the obtained data that complex processes occur in the crystallattice at high- temperature ... feature of the high- temperature strain.Fig. 4.1 The physical model of the steady-state strain at high temperature. The sub-boundaries are built of two systems:the pure screw and the 60◦-dislocation...
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High Temperature Strain of Metals and Alloys Part 5 pdf
... heat-resistantmetals, steels and alloys operate at temperatures between 0.40 and 0.75 Tm.The area of temperature and stress where the proposed mechanism of high- temperature deformation takes ... Herring-Nabarro) athigher temperatures and relatively lower stresses. It is necessary to empha-size that an adequate understanding of dislocation processes in these rangesof temperature and stress ... at high temperatures.The developed theory is valid within certain limits of the temperature and applied stress. When the temperature is relatively low, the dislocation climbis depressed and...
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