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Showing 1 to 20 of 25 for “"Concentration measurement"”.
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Bioreactor Fill Process Control Using Inline Concentration Measurement
… controlling the fill operation using an inline concentration measurement of the parameter of interest. An engineering-probabilistic approach, consisting of a transient concentration profile model built into a Monte Carlo framework, is applied to predict the variability of the performance of a …
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Experimental technique for concentration measurement using Magnetic Resonance Imaging
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Mobofoto: a mobile platform for concentration measurement through colorimetric analysis
Traditional colorimetric measurement is widely used in chemical concentration estimation. However, compared to the laboratory solutions for accurate measurements with professional measuring equipment, colorimetric measurement is often more qualitative than quantitative. It would be most productive …
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X-ray Computed Tomography as a method of cryoprotectant concentration measurement and ice detection: application to organ cryopreservation.
La criopreservación persigue la conservación de sistemas biológicos, como células, tejidos o pequeños organismos, a bajas temperaturas. Existen distintos procedimientos para llevar las muestras biológicas a temperaturas criogénicas, evitando la formación del principal causante de la muerte celular …
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Wide range analysis of ozone gas concentration in ultraviolet region
… absorption spectroscopy technique for ozone concentration measurement. Additionally, wide range analysis has been conducted to improve range of ozone concentration measurement using ultraviolet light absorption. Simulation of ozone absorption cross section in ultraviolet region was conducted …
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Design and validation of an air window for a molten salt solar thermal receiver
… a method of molten salt simulation and vapor concentration measurement. The test cell demonstrated the ability to lower the mass fraction of vapor outside the aperture by 77.8% ±6.2%. A high rate of cooling was observed in the test cell as the velocity of the air window was increased.
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Mobosens: Mobile software platform for concentration measurements on a smartphone
… over laboratory solutions for quantitative measurements of chemical concentrations in water. First, the cost of a mobile device is more affordable than professional measuring equipment; second, a mobile device is very portable and convenient for performing measuring tasks at multiple …
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Conversion kinetics of oxyfluoride-derived YBCO films
… to crystalline YBCO films. In this approach, the concentration of residual fluoride in the partially converted films was examined using fluoride ion selective electrode. Results obtained by this method were compared to results obtained by such methods as X-ray analysis and in-situ resistivity …
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Spatiotemporal Temperature and Concentration Measurements in a Monolith Reactor
… comprehensive information about the thermal and concentration fields inside the monolith reactor. The concentration fields can be studied by a Spatially Resolved Capillary Inlet Mass Spectrometer technique (Spaci-MS). On the other hand, the temperature field is often measured by positioning …
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Measuring the absolute concentration of particles in suspension using high frequency B-mode ultrasound imaging
Concentration measurement of particles in suspension is an important procedure performed in biological and clinical laboratories. Existing methods based on instruments such as hemocytometers, coulter counters, and flow cytometers are often laborious, destructive, and incapable of in vivo …
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A quantitative study of neuronal calcium signaling
… of the cell membrane from intracellular calcium concentration measurement data using a two step process. The first step is the inference of calcium current density from calcium concentration measurements using a least squares fit to the data. Once an estimate of the calcium current density is …
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Hydrogen purity assessment using laser absorption Spectroscopy
… addresses the limitations of current hydrogen measurement techniques by developing a novel hydrogen spectrometer (𝐻2-Spectrometer) based on direct Tunable Diode Laser Absorption Spectroscopy (d-TDLAS). The goal is to establish a traceable and accurate methodology for hydrogen purity and …
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Indoor atmospheric radon in Hamadan, Iran. Atmospheric radon indoors and around Hamadan city in Iran.
… This investigation has determined the radon concentrations in seventy-seven domestic houses in a mountainous area of Hamadan in Iran which were monitored using track-etch detectors of type CR-39 exposed for three month periods. The arithmetic mean radon concentration in Hamadan buildings was …
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Microfluidic Tools for Advanced Biomolecular Characterisation
… substrate, enabling quantitative measurements of heterogeneous protein mixtures. Afterwards, I present the spray combination with gravimetric sensors, such as micro-cantilevers, for a label-free protein detection. I show that this technique can be used for a protein-solution …
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Characterisation of natural radioactivity in Karoo Basin groundwater prior to shale gas exploration
… radon (222Rn), in particular in-water activity concentrations; however, supplementary radium (226Ra and 228Ra) in-water activity concentrations and uranium (238U) in-water concentrations measurements were also made. A total of 53 aquifers across three provinces were sampled for groundwater and …
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An innovative portable monitoring unit for air quality in animal housing
Made available in DSpace on 2015-07-22T22:17:58Z (GMT). No. of bitstreams: 2 JI-THESIS-2015.pdf: 4833031 bytes, checksum: 6ba839aa3c8f4fa2ad85192be43c7614 (MD5) LICENSE.txt: 4204 bytes, checksum: 531bc2bb4e3911d298c967420f5894ce (MD5) Previous issue date: 2015-04-29
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Method Development For Concentration Measurements of SVOCs and Analysis of Ambient Samples
… analytical technique for accurate concentration measurement of the selected classes of SVOCs is essential in order to gain more insight into their ambient yield and environmental fate. Recently, a new methodology that allows sampling and analysis of the total (gas phase and PM) …
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Development and verification of the NASA Multi-Angle Imager for Aerosols operational cloud mask
… product is a level 2 aerosol particulate matter concentration measurement collected over cloud-free pixels. The quality of this product heavily depends on the validity of the cloud mask. In this project, we present a cloud masking algorithm for MAIA constrained to its hardware. It consists of 7 …
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Developing Procedures for Screening High Emitting Vehicles and Quantifying the Environmental Impacts of Grades
… mass emissions from remote sensing device measurements that can be used to enhance HEV screening procedures. Remote Sensing Devices (RSDs) are used as supplementary tools for screening high emitting vehicles (HEVs) in the U.S. in order to achieve the National Ambient Air Quality Standards …
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Vertical Transport of Sediment from Muddy Buoyant River Plumes in the Presence of Different Modes of Interfacial Instabilities
… from the plume. Previous laboratory and field measurements have suggested that, at times, sedimentation can take place at rates higher than that expected from individual particle settling (i.e., C{W}_{s}). Two potential drivers of enhanced sedimentation are flocculation and interfacial …
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