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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"nebulizer"”.
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Diameter distribution for a compressed air, nebulizer atomizing system
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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Nebulizer facilitated molding of freeform 3D printed sacrificial scaffolds for breast tumor microenvironment tissue engineering
… cylindrical uniformity. Using this oscillating nebulizer system, we sought to test different types of barrier coatings for breast luminal modeling. Hydrophobic, reversible coatings were shown to be feasible for molding complex structures. This bio-orthogonal material could be completely washed …
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A study of microwave induced plasmas
… argon flowrate of 0.1 1 min-1 using a Babing!qn nebulizer, the other on a flowrate of 1.0 1 min-1 using a crossflow nebulizer. The crossflow nebulizer was also used for an analytical MIP generated in a TM 010 cavity.
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Establishing a calibration for a microwave plasma continuous emissions monitor
… in stack exhaust. This MIP-CEM has a nebulizer calibration subsystem attached to the sample line for real-time span calibration of the monitored metal concentrations. In order to quantify the amount of metal mass measured in the effluent flow, it is necessary to determine the analyte …
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Design of experimental setup for identification of parameters for optimal aerosolization of measles vaccine
… parameters are identified as relative humidity, nebulizer temperature, vaccine reconstitution, solution pH, surface tension, viscosity, air pressure, and nebulizer geometry. Relevant post-aerosolization parameters are identified particle size distribution, aerosolization endurance and …
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Fundamental studies of mixed gas plasmas in ICP-MS
… on As and Se. The addition of nitrogen to the nebulizer gas was particularly effective in the removal of the ArCl+. The use of nitrogen addition also facilitated the determination of arsenic in samples where it was previously found to be impossible. The addition of methane was also applied to …
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Evaluation of slurry injection for the determination of metals in solid samples using inductively coupled plasma atomic emission spectrometry
… efficiency in the conventional, concentric nebulizer; and poor vaporization efficiency at the argon plasma. The nebulizer tends to clog and a large fraction of particles is lost in the spray chamber due to their weight. The conventional argon plasma is not energetic enough to vaporize the …
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Development and characterization of a low power helium microwave induced plasma for spectrometric determinations of metals and nonmetals
… cavity solely by the helium gas output of the nebulizer. Aqueous samples from a pneumatic glass nebulizer/Scott spray chamber were aspirated into the cavity without a desolvation apparatus. With AES, detection limits for metals and nonmetals were in the sub-ppm range. with AFS, detection limits …
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Application of an argon-cooled inductively coupled plasma to the analysis of metals in lubricating oils
… ratio (SBR) using the standard cross flow nebulizer and then repeated using the high solids Babington-type nebulizer. Weighted compromise conditions were calculated resulting in a maximum loss of 50% in the SBRs of the individual elements. These conditions result in an analytically useful …
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Experimental technique for optimizing aerosolized vaccine efficacy by Erika J. Sandford.
… multiple variables, including input pressure, nebulizer geometry, and vaccine reconstitution. The setup provides a pressure input, sensors for ambient properties, and a device to measure particle size distribution.
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Black Carbon Measurements of Snow and Ice Using the Single Particle Soot Photometer: Method Development and an AD 1852-1999 Record of Atmospheric Black Carbon from a Mount Logan Ice Core
… using the SP2 coupled to a CETAC ultrasonic nebulizer. The methods were then used to develop an AD 1852-1999 record of BC using an ice core from Mt. Logan in the Yukon Territory, Canada. The BC recorded at Mt. Logan is predominantly from biomass burning in Alaska, the Yukon Territory, and …
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Development of a laser ionization test bench for radioactive ion beams
… be ejected into a flame via a device called a nebulizer where the atoms will be excited by two-step excitation followed by collisional ionization in the flame. The signal obtained will be fed onto a "boxcar" for data processing and analysing. In time-of-flight mass spectroscopy, a collimated …
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Time and Concentration Relationships of Gentamicin in Serum and Bronchial Lavage Fluid of Horses Administered Gentamicin Intravenously and by Aerosol
… using a close fitting facemask and an ultrasonic nebulizer. Intravenous gentamicin was administered via a jugular venous catheter. Samples of pulmonary epithelial lining fluid were collected by bronchial lavage performed at 0.5, 4, 8 and 24 hours after gentamicin administration. All samples were …
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Ion Mobility Spectrometry : Optimization of Parameters in Collision Cross Sections and Trace Detection of Explosives
… is used as the ion source of IMS while a nebulizer was utilized to electrify the aromatic compounds. New parameters show no less accuracy and equal efficiency while can explain the physical meaning of the collision more clearly. The second application is the trace detection of explosives …
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Centennial-scale elemental and isotopic variability in the tropical and subtropical North Atlantic Ocean
… induced by the acceleration potential and nebulizer conditions. These experiments show equivalent results for three empirical correction laws, and the previously proposed [beta]Pb/[beta]TI correction does not improve isotope ratio accuracy under these conditions. External secondary …
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Purification and quantitative description of Rhodococcus equi IgG designed for aerosol nebulization to foals
… IgG was aerosolized using a vibrating mesh nebulizer and aerosol characterization was performed using cascade impaction. The purified IgG was nebulized to six healthy adult horses in order to assess the efficacy of pulmonary delivery and safety of administration. Bronchoalveolar fluid was …
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Minimizing the Inappropriate Use of Physical Restraint
… new or old tracheostomy, needing bipap, rigorous nebulizer treatment, and other respiratory-related devices, not to mention the multiple comorbidities that oftentimes very difficult to stabilize which makes the hospital stay longer than usual. The Clinical Nurse Leader (CNL) as an educator and an …
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Effervescent proliposomes for aerosol delivery to paranasal sinuses
… and Pari Sprint (non-pulsating technology) nebulizers were used for liposome delivery to a nasal cast. Choice of carrier did not affect the liposome’s ability to withstand shearing. A novel system of a Sar-Gel® (water indicating paste) coated clear nasal cast fixed to a two-stage impinger …
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Velocity and Temperature Characterization of the First Vacuum Stage Expansion in an Inductively Coupled Plasma - Mass Spectrometer
… profiles were collected as a function of nebulizer rate, incident ICP power and matrix composition to establish a behavioral baseline for neutral species in the first vacuum stage expansion of an ICP-MS. Velocities were determined from the Doppler shift of laser-induced Ar (I) fluorescence …
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Some aspects of rapid analysis of coal slurries using direct current plasma emission spectrometry
… which increases the droplet size from the nebulizer and hence the particle size transportable• The increased droplet size causes a decrease in sensitivity due to reduced desolvation/vaporization, but does permit the use of aqueous solutions and as calibration standards for determination of …
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