reversible room temperature bonding of glass devices for microfluidics

la nanotubes sensor for room temperature detection of ammonia

la nanotubes sensor for room temperature detection of ammonia

... heated at 700 ◦ C for h in open air, resulting in formation of arrays of LSCO nanotubes in the inside of the pores of the AAO template 2.4 Characterization The morphologies of the LSCO nanowires ... concentration of NH3 Typical response curve obtained with different steps of NH3 concentration variation at the 10,000 Hz frequency is reported in Fig 5; the measurements were performed at room temperature ... Response time is one of the most important parameters for all sensors Generally, this property of a gas sensor mainly depends upon the response time at low gas concentrations The roomtemperature response...

Ngày tải lên: 20/03/2014, 13:04

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Tài liệu Báo cáo Y học: Temperature dependence of thermodynamic properties for DNA/DNA and RNA/DNA duplex formation pdf

Tài liệu Báo cáo Y học: Temperature dependence of thermodynamic properties for DNA/DNA and RNA/DNA duplex formation pdf

... function of temperature in the course of duplex melting can be given by [22,39,4447]: ATị ẳ aị Ahelix Tị ỵ a Acoil Tị 2ị where A(T) is the absorbance of a solution at the temperature of interest ... Detailed derivations of Eqns (11) and (12) Table S1 Temperature- independent thermodynamic parameters of DNA complexes Table S2 Direct comparison of temperature- independent and temperature- dependent ... parameter sets of the temperature- dependent thermodynamics for the DNA/DNA and RNA/DNA oligonucleotide duplexes In the present study, we determined the temperatureindependent and temperature- dependent...

Ngày tải lên: 22/02/2014, 07:20

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Development of dielectrophoresis devices for cell manipulation

Development of dielectrophoresis devices for cell manipulation

... wafer-to-wafer bonding using contact imprinting, mask for deep wet etching of patterns in glass; and anodic bonding of three layered wafers, glass- silicon -glass; have been developed Finally, the performances ... DEVELOPMENT OF DIELECTROPHORESIS DEVICES FOR CELL MANIPULATION YU LIMING (B.S., M.S.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF MECHANICAL ENGINEERING NATIONAL UNIVERSITY OF ... review of DEP Theoretical analysis of the DEP force, electrokinetic behaviors of particles caused by DEP, separation mechanisms of different population of particles and solutions for generation of...

Ngày tải lên: 14/09/2015, 11:45

200 398 0
Design and experimentation of surgical devices for voice restoration

Design and experimentation of surgical devices for voice restoration

... decreases the need for patient monitoring Also, performing the procedure in an outpatient, office-based setting reduces patient cost A stent in the form of a nasogastric tube or catheter is often left ... Figure – Microflap technique in practice, (Left) after removal of benign lesion and (Right) redraping of microflap The microflap technique has been accepted as the standard approach for cold surgical ... end of the suture This improved the ease of performing the technique Their new technique was tested on human cadaveric larynges for a total of 10 sutures and they reported a placement time of...

Ngày tải lên: 04/10/2015, 10:26

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Development of DMC controllers for temperature control of a room deploying the displacement ventilation HVAC system

Development of DMC controllers for temperature control of a room deploying the displacement ventilation HVAC system

... controller for temperature control inside a room within a desired band of temperatures for comfort The details of the geometry of the room and the HVAC system based on displacement ventilation for cooling ... dimensions of the room are 12 ft x 12 ft x 9.5 ft with a surface are of 804 ft² and volume of 1368 ft3.The inlet vents on floor of the room are 6"×9" in cross-section, which gives an area of 2.25ft² for ... International Journal of Energy and Environment (IJEE), Volume 4, Issue 3, 2013, pp.415-426 Output of the process Step input r(t) Performance of G1(z) -0.2 Performance of G2(z) Performance of G3(z) -0.6...

Ngày tải lên: 05/09/2013, 16:11

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Preparation and characterization of tio2 nanotube arrays via anodization of titanium films deposited on FTO conducting glass at room temperature

Preparation and characterization of tio2 nanotube arrays via anodization of titanium films deposited on FTO conducting glass at room temperature

... film obtained directly at room temperature is favorable for the formation of ordered nanotube arrays 2.2 Fabrication and characterization of TiO2 nanotube arrays on FTO glass substrates Fig.3 depicts ... features of metal films are given on the basis of the relative substrate temperature Ts/Tm (Ts is substrate temperature, Tm is melting point of the deposited material) and the energy of deposition ... sputtering power (Ps) was 150 W at room temperature After deposition for 0.5 h, the samples were kept in vacuum for h 1.2 Preparation of TiO2 nanotubes on FTO glass using an anodization method...

Ngày tải lên: 02/09/2015, 13:33

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Tài liệu Notes on the use of hand-held test devices for installation of the KRONE Cat.6 KM8 products doc

Tài liệu Notes on the use of hand-held test devices for installation of the KRONE Cat.6 KM8 products doc

... of the cable length by the instrument Notes on the use of hand-held test devices for installation of the KRONE Cat.6 KM8 products December 2001 Page of 23 IDEAL LT8600LT The IDEAL LT8600 performs ... on the determination of the cable length by the instrument Notes on the use of hand-held test devices for installation of the KRONE Cat.6 KM8 products December 2001 Page of 23 MICROTEST OMNIScanner2™ ... PC Software: Software V 7.0 Accessories: § Permanent Link Interface Adapter 8262-38: Includes: § § interface adapters, suitable for the KRONE KM8 Notes on the use of hand-held test devices for...

Ngày tải lên: 21/12/2013, 18:15

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Tài liệu Báo cáo khoa học: Differential expression of duplicated LDH-A genes during temperature acclimation of weatherfish Misgurnus fossilis Functional consequences for the enzyme ppt

Tài liệu Báo cáo khoa học: Differential expression of duplicated LDH-A genes during temperature acclimation of weatherfish Misgurnus fossilis Functional consequences for the enzyme ppt

... excess of kinetic energy (as a measure of temperature) and its effect on enzyme activity Alternatively, we know of a number of examples of qualitative strategies, for example, when expression of ... existence of two LDH-A mRNAs of different lengths: short (a-isoform; b mRNAa ldhÀa ¼ 1332 bp) and long (b-isoform; mRNAldhÀa ¼ 1550 bp) Sequence analysis of these mRNAs has shown that these two forms ... of the LDH gene has been found Sequence divergence between pairs of isoforms, known in diploid teleosts is $ 20–25% (for ORFs of mlc1 and mlc2 genes), while divergence between the two forms of...

Ngày tải lên: 19/02/2014, 02:20

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Dose dependence of room temperature photoluminescence from Si implanted SiO 2

Dose dependence of room temperature photoluminescence from Si implanted SiO 2

... were performed at room temperature using  PROFILE is a commercially available code for calculating high-dose implant profiles Fig Implant profiles calculated using the PROFILE code for a single 400 ... distribution of precipitated 216 S Cheylan et al / Journal of Luminescence 80 (1999) 213—216 Fig compares the peak of the emission spectrum for single and multi-energy implants as a function of total ... a distinct maximum at a dose of 4;10 Si cm\ compared to 6;10 Si cm\ for as-implanted samples The strongest emission is observed for a relatively narrow range of Si doses, corresponding to...

Ngày tải lên: 16/03/2014, 15:26

4 394 0
room temperature ammonia sensing properties of w18o49 nanowires

room temperature ammonia sensing properties of w18o49 nanowires

... large amounts of oxygen vacancies that are often implicit in the preparation of oxide semiconductors The room temperature electrical response of the nanowire sensor to a pulse of 200 ppm (balance ... at room temperature to n-type at temperature above 150 ◦ C when exposed to 100 ppm ammonia [6] Abnormal behavior of an abrupt decrease followed by a slow increase of the electrical resistance of ... variation of gas concentrations and a change of the sign in conductivity variation will be observed The abnormal behavior of the response of the WONWs to ammonia can be explained if the diameter of...

Ngày tải lên: 20/03/2014, 13:07

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synthesis, growth mechanism and room-temperature blue luminescence emission of uniform wo3 nanosheets with w as starting material

synthesis, growth mechanism and room-temperature blue luminescence emission of uniform wo3 nanosheets with w as starting material

... into three parts: the formation of precursor, the formation of WO3 by decomposition of WO3 Á H2O and growth of WO3 crystal nucleus Peroxy-tungstates were formed by the action of H2O2 on W [35,36] ... refluxed at 55 1C for h, then yellow concentrated sol was formed After aging at room temperature, yellow precipitate was separated out and used as the precursor A total of 0.4 g of precursor was ... lower temperature than the applied hydrothermal temperature So WO3 can be easily formed in our experimental conditions However, the subsequent crystal growth is dominant for the formation of WO3...

Ngày tải lên: 20/03/2014, 13:08

4 358 0
Interagency List of Essential Medical Devices for Reproductive Health ppt

Interagency List of Essential Medical Devices for Reproductive Health ppt

... monitoring for detection of complication and recording (including use of partograph); prevention and control of infection; and active management of third stage of labour 15.a Detection of prolonged ... for cervical examination during labour  • for post delivery care  • for care of newborn,  • presence of wounds on the hands  • checking and packing of medical devices before sterilization.  Wearing long‐sleeved gloves (gynaecological/uterine gloves) where the hand and fore‐arm  ... (part of ANC) 2.a Screening of hypertensive 2.b Initial management of predisorders of pregnancy (part of ANC) eclampsia and eclampsia 3.a Prevention (iron supplementation) and screening for anaemia...

Ngày tải lên: 28/03/2014, 14:20

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fabrication of znscupva nanocomposite electroluminescence devices for flat panel displays

fabrication of znscupva nanocomposite electroluminescence devices for flat panel displays

... promising for the improvement of electroluminescence (EL) devices The effect of reducing the size of nanocrystals /nancmposites is expected to improve the performance of these devices and also their ... synthesis of the sample Nanocrystal-polymer samples of ZnS have been prepared with different loading (5%, 10%, 20%, 30% and 40%) of nanocrystals For preparation of composites, the For EL investigations, ... voltages, saturation of EL intensity occurs for lower concentrations of nanocrystalline loading This shows that such composites can be easily used for EL devices with advantage of better flexibility...

Ngày tải lên: 28/04/2014, 10:50

5 357 0
báo cáo hóa học:" A biomechanical study of plate versus intramedullary devices for midshaft clavicle fixation" pot

báo cáo hóa học:" A biomechanical study of plate versus intramedullary devices for midshaft clavicle fixation" pot

... displacements of mm, 7.5 mm and 10 mm Clavicle Pair Load at mm for plate (N) Load at mm for pin (N) Load at 7.5 mm for plate (N) Load at 7.5 mm for pin (N) Load at 10 mm for plate (N) Load at 10 mm for ... at 180N for plate Displacement at 180N for pin Displacement at 360N for plate Displacement forat 360N pin Displacement at 540N for plate Displacement at 540N for pin Displacement at 720N for plate ... loads of higher than 720N, over half of constructs had failed Page of (page number not for citation purposes) Journal of Orthopaedic Surgery and Research 2008, 3:28 Conclusion For the fixation of...

Ngày tải lên: 20/06/2014, 01:20

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Báo cáo hóa học: " Anodization of nanoporous alumina on impurityinduced hemisphere curved surface of aluminum at room temperature" pptx

Báo cáo hóa học: " Anodization of nanoporous alumina on impurityinduced hemisphere curved surface of aluminum at room temperature" pptx

... while the negative voltage of -2 V was adopted for the negative pulse The period of a hybrid pulse was s (1 s:1 s) The formation of AAO was performed for h by means of the potentiostat (5000, ... shape of a hemisphere due to the lower thermal conductivity of alumina, as shown in Figure 4a The isothermal is along the surface of the hemisphere Therefore, the formation and dissolution rate of ... known that both formation and dissolution of porous alumina are temperature- dependent processes, and the rate increases with increasing temperatures It is noted that the resistivity of Si is much...

Ngày tải lên: 20/06/2014, 22:20

6 432 0
Báo cáo hóa học: " Direct synthesis of ultrafine tetragonal BaTiO3 nanoparticles at room temperature" pptx

Báo cáo hóa học: " Direct synthesis of ultrafine tetragonal BaTiO3 nanoparticles at room temperature" pptx

... line of 637, 488, and 325 nm The rate of measured temperature rise is 15°C/min Results and discussion A large quantity (23.0 g) of barium titanate nanoparticles is directly synthesized at room temperature ... dissolving 34.0 g of Ti(OC4H9)4 into 50.0 ml butanol The alkali slurry is prepared by ball milling of the mixture of 17.1 g Ba(OH)2 and 3.60 g H2O in 100 ml butanol for h The cubage of the milling ... H: Room temperature- synthesis of ferroelectric barium titanate nanoparticles using peptide nano-rings as templates Adv Mater 2006, 18:807-811 14 Bansal V, Poddar P, Ahmad A, Sastry M: Room- temperature...

Ngày tải lên: 21/06/2014, 01:20

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Báo cáo hóa học: " Room-temperature nonequilibrium growth of controllable ZnO nanorod arrays" ppt

Báo cáo hóa học: " Room-temperature nonequilibrium growth of controllable ZnO nanorod arrays" ppt

... contact angle measurement Page of 11 (OCA 20, DATAPHYSICS) at room temperature The electrowetting process relied on the modification of contact angle by the application of a voltage in the 0-60 V ... of nanosheets when R is 1:6 It is considered that these tips show the transformation of nanostructure from nanosheet to nanorod When R decreased to 1:8, uniform ZnO nanorods with sharp tips formed ... decreasing R to 1:10 led to the formation of wider nanorods (Figure 1d) Influences of Zn(NO ) concentrations on the final morphology of nanostructures when the value of R was fixed to 1:8 were also...

Ngày tải lên: 21/06/2014, 01:20

11 292 0
Báo cáo hóa học: " Low-temperature synthesis of CuO-interlaced nanodiscs for lithium ion battery electrodes" potx

Báo cáo hóa học: " Low-temperature synthesis of CuO-interlaced nanodiscs for lithium ion battery electrodes" potx

... electrochemical performance [16,25,26] This detrimental phenomenon may also have Figure Voltage profiles of CuO Galvanostatic discharge/charge voltage profiles of CuO-interlaced nanodiscs at a rate of C/5 ... upon cycling [27] Formation of composites by incorporation of MWCNTs can provide an enhanced electronic conductivity of electrodes and elastic buffers for releasing the strain of CuO during the ... synthesis of CuO hierarchical nanosheets at near-neutral pH and near -room temperature Mater Lett 2007, 61:2222 19 Liu B, Zeng HC: Mesoscale organization of CuO nanoribbons: formation of “Dandelions”...

Ngày tải lên: 21/06/2014, 03:20

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Báo cáo hóa học: " Cohesive strength of nanocrystalline ZnO:Ga thin films deposited at room temperature" pptx

Báo cáo hóa học: " Cohesive strength of nanocrystalline ZnO:Ga thin films deposited at room temperature" pptx

... nature of the thin films influences both optical and electrical performance Figure shows optical transmittance as a function of wavelength for thick GZO films (approx 700 nm) prepared on glass ... corresponds to zero Figure 2b shows the plot of (ahν)2 as a function of photon energy (hν) for GZO films From these plots, it can be seen that the value of the bandgap of GZO decreased from 3.73 eV (0.41 ... charge carrier concentration and Hall mobility as a function of the Pw, for GZO films deposited on glass, are shown in Figure The resistivity of GZO samples decreased initially, and then increased...

Ngày tải lên: 21/06/2014, 04:20

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Báo cáo hóa học: " Pd Nanoparticles and Thin Films for Room Temperature Hydrogen Sensor" potx

Báo cáo hóa học: " Pd Nanoparticles and Thin Films for Room Temperature Hydrogen Sensor" potx

... value of recovery times for these sensors can be correlated to the formation of Pd-hydride Once Pd is transformed as Pd-hydride, the lattice structure of the palladium changes, in terms of expansion ... reason for the observed room temperature sensor response As the Pd particle size approaches the nanoscale dimensions, the probability of forming Pd-hydride increases due to a very strong affinity of ... variation of response time with average grains size for the chemically grown and sputtered deposited films Response time is the time needed for the resistance of the gas sensor to obtain 90% of the...

Ngày tải lên: 22/06/2014, 00:20

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w