low temperature wafer level metal thermo compression bonding technology for 3d integration
Complete oxidation of methane at low temperature over noble metal based catalysts
Ngày tải lên :
08/10/2015, 22:56
... properties for low- temperature applications, i.e for temperatures lower than the PdO decomposition temperature In order to provide a catalyst with improved low- temperature activity, for purifying ... its reformation during temperature cycling The formation of highly dispersed PdO clusters in thermodynamic equilibrium with the previously formed metallic Pd surface after pre-treatment at temperatures ... understand the catalytic behaviour and provide ideas to find a good, durable formulation for NGVs but also more generally for all low- temperature applications First, we will develop the current ideas about...
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Báo cáo hóa học: "Research Article Design of a Versatile and Low Cost μVolt Level A to D Conversion System for Use in Medical Instrumentation Applicatio" pdf
Ngày tải lên :
22/06/2014, 01:20
... microvolt level was proposed and developed as described below, for the specific purpose of direct coupling to a variety of sensors, and has been implemented using readily available low power integrated ... personal computer (PC) The base collector junction of Q1 is used for reverse voltage blocking and level shifting and could be replaced with a low leakage diode if desired Device U7 is a battery condition ... supplies a highly stable +5 volt to the active devices The very low current drain of the circuit allows the use of this ultrastable and low noise method of regulation, in preference to the considerably...
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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing
Ngày tải lên :
19/03/2014, 16:48
... to NO2 when operated at room temperature [19] However, the responsiveness reported for these pure MWCNTs sensors to NO2 was far lower than the one reported here for SnO2 /MWCNT and WO3 /MWCNT ... quantity of O2 -functionalized MWCNTs to metal oxides can significantly improve the detection capability of metal oxidebased sensors at low operating temperatures In particular, micro-sensors ... enhanced performance of hybrid metal oxide/MWCNT sensors in comparison with pure metal oxide or pure MWCNT sensors Acknowledgements This work was funded in part by the Spanish Commission for Science...
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Báo cáo y học: "Low temperature tolerance of human embryonic stem cells"
Ngày tải lên :
31/10/2012, 16:57
... 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 ... depolymerization at low temperatures [1, 2], which would imply that the mitotic spindle is unable to form Hence, for reference to the initial number of cells before exposure to low temperature, a ... while the low- temperature exposed groups were subjected to atmospheric levels of CO2 MTT assay to quantify hESC survival rate after exposure to low temperature The MTT assay [3] was performed to...
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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
Ngày tải lên :
14/02/2014, 22:20
... would like to thank S Stutz for fruitful discussions and for helping with measurements of enzyme activities at low temperature We would also like to thank A Allinger for expertise in plant cultivation, ... compensated for the low- temperature effects at day This coincides with the time point of maximal tolerance acquisition, thus proving the importance of photosynthesis and long-distance transport for acclimation ... with increased SPS activity, leading to higher photosynthetic performance at low temperatures Interestingly, model simulations for C24 and Rsch revealed that synthesis of soluble sugar was never...
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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
Ngày tải lên :
07/03/2014, 04:20
... interactions, and therefore is sensitive to 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 ... triplets 327–321 Amplification was performed using standard conditions: 30 cycles at 94 °C for 50 s, 45 °C for min, and 72 °C for A final incubation at 72 °C for was added to the last cycle The ... in distilled water, and used as template for PCR; the program was 30 cycles at 94 °C for 50 s, 48 °C for min, and 72 °C for A final incubation at 72 °C for was added to the last cycle cDNA was...
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low temperature hydrothermal synthesis of monodispersed flower - like titanate nanosheets
Ngày tải lên :
20/03/2014, 13:04
... required for the formation of the titanates [25] As mentioned above, the pH of ammonia solution used in our experiments was pH 12 Therefore, the pH of ammonia solution used was sufficient for the formation ... nanosheets structure 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 ... diffraction peaks for layered titanate (NH4)2Ti3O7ÀxNx [1,24] However, the peak cannot be clearly observed for the sample prepared at 60 °C Recently, Takezawa and Imai have reported the formation of...
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low-temperature h2s sensors based on ag-doped fe2o3 nanoparticles
Ngày tải lên :
20/03/2014, 13:04
... about 160 ◦ C The operating temperature of all the Ag-doped sensors is lower than that of the reported H2 S sensors [27–30] The lower operating temperature could lead to lower energy consumption, ... much better response and lower operating temperature than pure ␣-Fe2 O3 , and the optimum performance is obtained at 160 ◦ C for the sensor of wt% Ag/␣-Fe2 O3 Therefore, all further experiments ... better selectivity and rather lower optimum operating temperature to H2 S Especially, the optimum performance was obtained at an operating temperature of 160 ◦ C for the wt% Ag/␣-Fe2 O3 sensor...
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wo3 thin film sensor prepared by sol–gel technique and its low-temperature sensing properties to trimethylamine
Ngày tải lên :
20/03/2014, 13:12
... deposited on Si wafers 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 annealed at 500◦ C for 10 h The thin film sensors were set up in a glass test chamber with a volume of 0.18 m3 and kept under a continuous flow of fresh air for 10 before measurement The operating ... 69 (2001) 176–179 177 air at 120◦ C for 15 In order to obtain the crystalline films, the heat treatment was performed on the dried films at 150, 350 and 500◦ C for 10 h 2.2 Thin film characterization...
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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
Ngày tải lên :
30/03/2014, 04:20
... syringae at low temperature (4 °C) The very low (but non-zero) ATPase activity of RecD (approximately 8–10% of the wild-type) is able to perform the RecBCD-dependent function at low temperature ... adaptive features that allow 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 ... to 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
Ngày tải lên :
23/04/2014, 22:32
... nanoscopic level in terms of their structural conformation (for example nanotubes) and pore texture (for example mesopore carbons) and/or at the macroscopic level in terms of their form (for example ... nanocoils were grown at 700 8C for 30 using C2H4 gas Few works have been performed on catalysts supported on CNHs or CNCs for use in low- temperature fuel cells For this reason, at this time, ... carbon blacks both at the nanoscopic level in terms of their pore texture (for example mesopore carbon) and at the macroscopic level in terms of their form (for example microsphere) The examples...
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morphology control of zno bilayer structure by low-temperature
Ngày tải lên :
06/05/2014, 13:24
... role for the formation of needle-like nanorods in ZnO nanodendrite–nanorod structure Fig shows the photoluminescence spectra of samples A and B which share the same growth condition except for ... reaction system, NH3 Á H2O is partly combined with Zn2+ and releases OH− slowly, resulting in a relatively stable environment for crystal growth Due to the sufficient Zn2+ concentration of the refreshed ... the backbones of nanodendrite which provides active sites for the renucleation and sequential growth of nanorods, finally resulting in the formation of complex 128 Y Lou et al / Materials Letters...
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Bactericidal effects of low temperature oxygen plasma on bacillus stearothermophilus and staphylococcus aureus
Ngày tải lên :
18/05/2014, 20:29
... with dry heat at 140 °C for 10 min, or (e) w ith low -temperature highly dissociated oxygen plasma for 20 s and (f) with low -temperature highly dissociated oxygen plasma for min, w ere stained ... °C for 20 s; (c) treated with dry heat at 140 °C for min; (d) treated with dry heat at 140 °C for 10 min, or (e) w ith low -temperature highly dissociated oxygen plasma for 20 s and (f) with low ... treated w ith low temperature highly dissociated oxygen plasma: (a) for 55 seconds; (b) for 240 seconds Figure SEM photographs of bacteria Staphylococcus aureus treated w ith low temperature highly...
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metal and alloy bonding an experimental analysis ; charge density in metals and alloys
Ngày tải lên :
30/05/2014, 00:31
... feature that distinguishes metals from non-metals is their bonding The existence of free electrons in metals has a number of profound consequences for the properties of metallic materials There ... electronic and optical devices Metals and alloys have high-melting temperatures because of the heavy bonding between the atoms There are a variety of applications for metals and alloys Due to the ... distribution and bonding in metal alloys CoAl and NiAl is characterized using MEM and multipole method Reported X-ray single-crystal data used for this purpose Clear evidence of the metal bonding between...
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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
Ngày tải lên :
18/06/2014, 16:20
... three times for with PBS, and blocked with a solution of 30 mL/L hydrogen peroxide in ethanol for 10 at room temperature They were immersed in 30 mL/L normal horse serum for 10 at room temperature ... that temperature [15] In fact, the real temperature of the tumor tissue between the two adjacent electrodes is lower than the target temperature because of the “heat sink” effect of blood flow ... control group (12.63 ± 1.87 cm ) It seemed that the lower the temperature of RFA was, the larger the tumor volume was (Fig 3) Effects of low temperature of RFA at the target sites on lung metastasis...
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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
Ngày tải lên :
20/06/2014, 20:20
... crucial to realize a low- temperature synthesis Therefore, argon-rich (hydrogenpoor) microwave plasma is popularly adopted for lowtemperature preparation of UNCD films due to the much lower thermal conductivity ... substrates with a low glass transition temperature (T g 557°C) The process opens further feasibility for the LPLT synthesis of UNCD films, providing a promising platform fabrication for diamond-based ... deposition at low- pressure /low- temperature [LPLT] conditions (without substrate heating) The MPJCVD-enhanced growth [MEG] is particularly critical in LPLT deposition to compensate for the insufficient...
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Báo cáo hóa học: " Comparison of nickel silicide and aluminium ohmic contact metallizations for low-temperature quantum transport measurements" docx
Ngày tải lên :
20/06/2014, 22:20
... transition metal silicides including NiSi are diamagnetic [30] However previous experimental results have indicated ambiguity in the magnetic properties of NiSi for fields below 200 mT at low temperatures ... available for transport and reducing the resistivity of the δ-doped layer Figure The two-terminal magnetoresistance at base temperature (T≈50 mK) for aluminium and nickel silicide contact metallizations ... 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 unlikely to cause the exponential...
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Báo cáo hóa học: " Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst" pdf
Ngày tải lên :
20/06/2014, 23:20
... stirred for 15 by a 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 ... Mn2O3 particles, resulting in low activity Moreover, Al-SBA-16MN15% contained MnO and Mn nitrate with low activity, which is supposed to be another reason for the low activity of Al-SBA-16-MN15% ... oxides J Catal 2004, 227:304-312 10 Peña DA, Uphade BS, Smirniotis PG: TiO2-supported metal oxide catalysts for low- temperature selective catalytic reduction of NO with NH3 I Submit your manuscript...
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- behavior of real gases at low temperature
- real gases behave ideally at low temperature
- real gas molecules behave most ideally at low temperature and high pressure
- effect of low temperature plasma on bacteria observed by repeated afm imaging
- no load running torque under low temperature
- thiamethoxam an inseticide that improve seed rice germination at low temperature
- resistance to low temperature acclimatization
- low temperature sintering of the alkali niobate ceramics
- temperature oil level and pressure gauges
- 5low temperature sealing coatings ltscs