5low temperature sealing coatings ltscs
Thermal combustion and oxygen chemisorption of wood exposed to low temperature long term heating 5
... required heat treatment temperatures (HTT) in the case of inert chars; for air-preheated chars, the chamber temperature was ramped directly from 25°C to the chemisorption temperatures In both cases, ... in TGA, the 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 ... 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...
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Báo cáo y học: "Low temperature tolerance of human embryonic stem cells"
... survived exposure to low temperature for extended durations Spontaneous differentiation of hESC after exposure to low temperature Following serial passage after exposure to low temperature, the proportion ... indistinguishable from non -temperature exposed hESC (data not shown) Chromosomal Analysis of hESC after exposure to low temperature Metaphase spreads of hESC following lowtemperature exposure were ... rate of hESC after exposure to low temperature (4oC and 25oC) for extended durations (24h and 48h) It was assumed that hESC not proliferate upon exposure to low temperature This assumption is based...
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iec 60439-5 low-voltage switchgear and controlgear assemblies - particular requirements for assem
... at an ambient air temperature between 10 "C and 40 "C after the CDC has been kept within these temperatures for not less than 12 h Test shall be carried out at an ambient air temperature between ... :1998 -27- Test shall be carried out at an ambient air temperature of between 10 "C and 40 "C immediately after the CDC has been kept at a temperature of -25:; O for a period of not less than 12 ... 6.1.1.2) The tests shall be carried out at an ambient air temperature between 10 "C and 40 "C immedi- 5; ately after the CDC has been kept at a temperature of - 12 h O for a period of not less than...
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Tài liệu Báo cáo khoa học: A systems biology approach for the analysis of carbohydrate dynamics during acclimation to low temperature in Arabidopsis thaliana doc
... acclimation of plants to freezing temperatures Plant Cell Environ 23, 893–902 Guy CL, Huber JLA & Huber SC (1992) Sucrose phosphate synthase and sucrose accumulation at low temperature Plant Physiol ... among Vitis genotypes grown under two temperature regimes Can J Plant Sci 89, 961–968 Strimbeck GR, Kjellsen TD, Schaberg PG & Murakami PF (2008) Dynamics of low -temperature acclimation in FEBS Journal ... differences in reprogramming of carbohydrate metabolism occur during the first days of exposure to low temperature (Fig S2) In particular, the sucrose content after day at °C was underestimated and,...
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Báo cáo khoa học: Different roles of two c-tubulin isotypes in the cytoskeleton of the Antarctic ciliate Euplotes focardii Remodelling of interaction surfaces may enhance microtubule nucleation at low temperature doc
... environmental temperature both in vitro and in vivo [16,17] The ab-tubulin dimers of mammals, for example, form microtubules in vitro at temperatures near 37 °C, and these polymers dissociate at low temperature ... Following amplification, melting curve analysis of the DNA was performed at temperatures in the range 50–95 °C, with the temperature increasing at a rate of 0.5 °C every 10 s All PCR reactions were ... that conserve nucleation in coldliving organisms have not been studied Data indirectly relevant to temperature compensation of microtubule nucleation were obtained from alanine-scanning mutagenesis...
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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing
... room temperature A similar responsiveness value was obtained when the sensors were operated at 150 ◦ C Actually, Table shows that sensitivity is higher when these sensors are operated at room temperature ... irresponsive to CO when operated at room temperature and TiO2 -based sensors were irresponsive to CO even at 150 ◦ C Fig Sensor responsiveness: (a) NO2 detection at room temperature; (b) NO2 detection ... the responsiveness of pure WO3 sensors operated at room temperature These sensors were found to be insensitive to NO2 , CO and NH3 at low temperatures of operation Additionally, Sberveglieri and...
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low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets
... ambient temperature under stirring condition The solution was mixed until a white precipitate appeared The suspension was aged in a static condition for 24 h in a closed container at room temperature ... could be observed for all samples prepared at temperature P80 °C (Fig 3c–h) Our results showed that, for this preparation method, the hydrothermal temperature was a critical factor As seen in ... through a cylindrical Pyrex jacket located around the UV light source to maintain the reaction temperature The evolved gasses were periodically analyzed by an on-line gas chromatograph (Shimadzu...
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low-temperature h2s sensors based on ag-doped fe2o3 nanoparticles
... operating temperature may be due to the difficulty in exothermic gas adsorption at higher temperature [33] Therefore, the maximum response can just be observed at the right operating temperature ... gas sensitivity is greatly influenced by the operating temperature and the amounts of additives In order to determine the optimum operating temperature and additive amount, the responses of Ag/␣-Fe2 ... of the sensors to H2 S are also affected by the operating temperature Each curve reveals a maximum response at an optimum operating temperature The undoped sensor has the maximum gas response...
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wo3 thin film sensor prepared by sol–gel technique and its low-temperature sensing properties to trimethylamine
... and annealed at different temperatures for 10 h The XRD pattern of the thin film annealed at 150◦ C does not show any definite structure So the sample annealed at this temperature was in the amorphous ... sensitivity of the sensor is affected by the operating temperature Fig shows the relationship between the gas sensitivity and the operating temperature of WO3 thin film sensor to TMA gas with various ... TMA, the optimum of the operating temperature is 70◦ C To 700 and 1000 ppm TMA, the gas sensitivity reaches almost the highest value at 70◦ C When the operating temperature is in the range of 70–85◦...
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Báo cáo khoa học: ATPase activity of RecD is essential for growth of the Antarctic Pseudomonas syringae Lz4W at low temperature potx
... them to survive and grow at a very low temperature [10–14] A molecular understanding of these features would be important to our knowledge regarding low -temperature- adapted biology We previously ... In vitro activities of RecD at various temperatures We reported previously that the defect in the P syringae recD mutant CS1, which does not grow at low temperature (4 °C), is complemented by ... support growth of CS1 at low temperature Only the three mutant proteins (T259A, R419A and E633Q) that displayed ATPase activity in vitro could complement the low -temperature- sensitive growth...
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Carbon supports for low temperature fuel cell catalysts
... cobalt and nickel at temperatures ranging from 550 to 1000 8C [143] Much lower growth temperatures can be reached when PECVD is used [147], opening the possibility to use temperature sensitive ... size, loading and temperature They exposed a series of carbon-supported platinum electrocatalyst samples (5–80 wt% platinum deposited onto BP-2000 high surface area carbon) to temperatures in the ... pore size and pore volume depend on the synthesis temperature, especially when R/C is high: the pore size tends to decrease when the synthesis temperature increases but this can be counterbalanced...
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morphology control of zno bilayer structure by low-temperature
... nanorods layers structure were obtained by controlling growth concentration and position via low -temperature hydrothermal process The shape evolution of nanodendrite–nanorod structure was discussed...
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Bactericidal effects of low temperature oxygen plasma on bacillus stearothermophilus and staphylococcus aureus
... high -temperature dry heat at 140 C for 10 (b, e) and the bacteria treated with low -temperature highly dissociated oxygen plasma for 20 s (c, f) Binding of DNA dyes to bacteria treated with high -temperature ... experimental conditions Certainly, more tests and in-depth study of low -temperature sterilization are needed to elucidate the mechanism of low -temperature plasma sterilization (CHOI et al., 2006) There is ... was to determine the sterilization effects of lowtemperature highly dissociated oxygen plasma on two selected Gram positive bacteria, i.e on temperature resisting Bacillus stearothermophilus...
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Báo cáo hóa học: " Low temperature of radiofrequency ablation at the target sites can facilitate rapid progression of residual hepatic VX2 carcinoma" pdf
... survive high temperature from 5055°C However, cells can seldom survive temperatures above 55°C [9] Therefore, it seems that most residual tumor and rapid progression should occur when the temperature ... although the target temperature can be set as high as 105-115°C during RFA, only the tissues that surround the electrodes can reach that temperature [15] In fact, the real temperature of the tumor ... HCC The real ablative temperature of the tumor might be nearer to the target temperature, compared with the clinical situation This was why we chose 85°C as the highest RFA temperature At present,...
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Báo cáo toán học: " Synthesis of highly transparent ultrananocrystalline diamond films from a lowpressure, low-temperature focused microwave plasma jet" ppt
... plasma heating is crucial to realize a low -temperature synthesis Therefore, argon-rich (hydrogenpoor) microwave plasma is popularly adopted for lowtemperature preparation of UNCD films due to ... pressure (5 to 100 Torr) and temperature (400°C to 700°C) A decrease in Page of the relative GB fraction for t-PA bands existed, and the increase in the substrate temperature was to promote hydrogen ... hydrogen trapping during synthesis is expectably caused by high -temperature growth (high-pressure) due to the hydrogen desorption temperature which is between 600°C and 1, 000°C [21] The above...
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Báo cáo hóa học: " Comparison of nickel silicide and aluminium ohmic contact metallizations for low-temperature quantum transport measurements" docx
... anomalous resistance peak, we have performed temperature dependence measurements as shown in Figure The magnitude of the peak is seen to rapidly increase as the temperature is reduced Whilst the BCS ... to increase towards a limiting value of 3.52 kTc as the temperature is reduced (≈ 360 μeV for aluminium), it changes only weakly in the temperature range shown here (≈10%) [28] This is therefore ... Figure shows the temperature dependence of both μ and the fitted values of lj, and can be seen to be independent of the choice of contact metallization The obtained values are Figure Temperature dependence...
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Báo cáo hóa học: " Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst" pdf
... magnetic stirrer at the same temperature The molar composition of the mixture was F127:TEOS:HCl:H2O = 0.0040:1.0:4.0:130 This mixture was put in an oven for 24 h at the same temperature The mixture ... stream, 80 min; temperature, 80°C 400 600 800 O3 Consumption Figure Effect of ozone consumption on benzene conversion and COx yield over Al-SBA-16 with Mn acetate Time on stream, 80 min; temperature, ... area of the catalyst were obtained using an ASAP-2010 apparatus (Micromeritics, Norcross, GA, USA) Temperature- programmed reduction [TPR] analysis was performed using a ChemBET 3000 (Quantachrome,...
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Báo cáo hóa học: " Low-temperature synthesis of CuO-interlaced nanodiscs for lithium ion battery electrodes" potx
... nanodisc structures, temperature- and time-dependent experiments were carried out Figure shows the series of typical FESEM images of samples taken after reaching a preset temperature and time ... to a tendency to form a 1-D structure [10,14,15,18] With the increase in the reaction temperature from room temperature to 50°C, each nanowire was shortened and thickened laterally due to the oriented ... in the CuSO4 solution formed a squareplanar complex [Cu(NH3)4]2+ upon addition of NH3OH at room temperature [17] When NaOH was further added, Cu(OH)2 nanocrystals began to precipitate The template-free...
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