carbon trust steam and high temperature hot water boilers

Ngày tải lên: 28/09/2014, 23:11

... substrate and their adjustable photoluminescence. J Non-Cryst Solids 2010, 356:2207-2210. doi:10.1186/1556-276X-6-469 Cite this article as: Zhang et al.: Carbon- assisted growth and high visible-light ... studied using a Datacolor 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 out testing of samples. ZT conceived and designed the experiments. LZ, SX and ZT wrote the manuscript. All authors read and approved the final manuscript. Competing...

Ngày tải lên: 21/06/2014, 01:20

... nanoparticles. The standard test of chiller is performed with standard water chiller rating condition: water inlet temperature at 7°C (T 1 ), water outlet temperature at 12°C (T 2 ), and at a flow rate ... added to water base fluid. The c ity water (tap water) was used due to the large 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 at 7°C (T 1 ), water outlet temperature at 12°C (T 2 ), and at a flow rate of 85 L/min. Tests...

Ngày tải lên: 21/06/2014, 04:20

... with high temperature operation up to 65 °C, high T 0 of 79.4 K, and low J th of 1.05 kA/ cm 2 . Though these results are still inferior compared to their GaInNAs QW counterparts [3–19] and In(Ga)As QD ... GaInNAs materials grown on GaAs substrate for realizing low- cost, high- performance and high- temperature laser diodes in the 1.3 lm and 1.55 lm wavelength region. So far, GaInNAs QW laser performance ... lm 2 )at10°C. High- temperature operation up to 65 °C was demonstrated from an unbonded GaInNAs QD laser (50 · 1,060 lm 2 ), with high char- acteristic temperature of 79.4 K in the temperature range...

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 05/09/2013, 08:40

... functional and stable at high temperatures, and adapted to low temperature environments. However, another theory suggests that hyperthermophiles 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 achieving these high temperatures ... also able to withstand high tem- peratures. Strategies for enhancing thermal stability and activity of hyperthermozymes Crucial for the development and optimization of high- temperature biocatalysis...

Ngày tải lên: 07/03/2014, 05:20

... dioxide, carbon monoxide and ammonia or ethanol vapors can be highlyimproved by dispersingan adequate quantity of carbon nanotubes into a metal oxide matrix. In this paper, we study and compare ... the presence of NO 2 and CO both at ambient tem- perature and 150 ◦ C. Three concentrations of each gas under study were measured: 100, 200 and 500 ppb for NO 2 ; and 1, 10 and 50 ppm for CO. The ... chemical vapor deposition (CVD), had purity higher than 95%, were up to 50 ␮m in length and their outer and inner diameters ranged from 15 to 3 nm and 7 to 2 nm, respectively. A uniform functionalization...

Ngày tải lên: 19/03/2014, 16:48

... inclusions, small-angle boundaries, and screw dislocations. Particularly relevant to high- temperature environments is the bandgap energy of SiC. At room temperature, the bandgap of 4H-SiC (the most attractive ... interfaces are suitable for high- temperature power electronics applications. KEY WORDS: carbon nanotube, thermal interface resistance, silicon carbide, high- temperature, photoacoustic INTRODUCTION Silicon ... materials and exhibit weak temperature dependence from room tempera- ture to 250  C. These characteristics make MWCNT arrays an excellent candidate to address the thermal management needs of high- temperature...

Ngày tải lên: 06/05/2014, 08:53

... key step to form TiC x , and thus differ- ent carbon sources, i.e., graphite and C black, have great effects on the product morphology and the reaction rate of [Ti] and [C] to form TiC x . Generally ... samples were then dissolved in a saturated FeCl 3 water solution, and the reacted Al- and Fe-Ti-CNT samples were dissolved in an 18 vol.% HCl- distilled water solution, to remove the Me coatings on ... TiB 2 powder 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)...

Ngày tải lên: 21/06/2014, 00:20

... novel low-power and high- speed dynamic carbon nanotube full-adder cells Mehdi Bagherizadeh 1* and Mohammad Eshghi 2 Abstract In 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. Nanoscale Research Letters 2011 6:519. Submit your manuscript to a journal and benefi t from: 7 ... 0” and COU T output 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, both outputs, SU M and COU T , are unchanged and...

Ngày tải lên: 21/06/2014, 00:20

... (HRY) and fissured kernels for A10 and OM2717 varieties. 87 Table 2: Mechanical breaking strength of low temperature (35 o C) and high temperature dried rice (dried for 2.5 and ... drying temperature of 80 0 C and 90 0 C 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 35 o C, the mechanical strength of the rice kernels was higher at high temperature drying (Table 2, Figure 8). This value was significantly higher at 90 o C drying temperature...

Ngày tải lên: 21/06/2014, 06:20

... 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 BiO 3 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 Bi 2 Sr 2 Ca 2 Cu 3 O 10 : THEORY AND EXPERIMENT S. Mohan* and P. Murugesan School of Applied Sciences, PR Institute of Science and Technology,...

Ngày tải lên: 07/08/2014, 14:20

... 978-3-527-31338-9 ISBN-10: 3-527-31338-9 Valim Levitin High Temperature Strain of Metals and Alloys High Temperature Strain of Metals and Alloys, Valim Levitin (Author) Copyright c  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 fundamentals of the high- temperature ... creep) and deformation under constant strain rate ˙ε. Physical distinctions between these two processes are not essential. In this book we shall use the definitions high- temperature strain” and high- temperature...

Ngày tải lên: 10/08/2014, 12:21

... been determined 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) Copyright c  ... 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 or two-step ageing ... between values Q in and Q T because the increase in temperature influences Q and the fraction in Eq. (2.9) in opposite directions. Measurements of I in and I d as well as I in and I T are performed...

Ngày tải lên: 10/08/2014, 12:21

... conditions (temperature and stress). The substructure formation during high- temperature strain in vanadium is shown in Figs. 3.6 and 3.7. The data are obtained at the same temperature 0.6 T m , ... vacancy loops and heli- coids: (a), (b) Iron tested at T = 973K and =10MPa; ì46 000. (c) Niobium tested 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 work for different metals show convincingly that the formation of jogs takes place during high- temperature deformation. Assuming that the kinks and...

Ngày tải lên: 10/08/2014, 12:21

... at High Temperatures Now 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 Temperatures 4.1 Physical Model and Theory It follows from the obtained data that complex processes occur in the crystal lattice 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...

Ngày tải lên: 10/08/2014, 12:21

... heat-resistant metals, steels and alloys operate at temperatures between 0.40 and 0.75 T m . The area of temperature and stress where the proposed mechanism of high- temperature deformation takes ... Herring-Nabarro) at higher temperatures and relatively lower stresses. It is necessary to empha- size that an adequate understanding of dislocation processes in these ranges of 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 climb is depressed and...

Ngày tải lên: 10/08/2014, 12:21

Ngày tải lên: 10/08/2014, 12:21

Ngày tải lên: 10/08/2014, 12:21

Ngày tải lên: 10/08/2014, 12:21