Results 251 to 260 of about 22,026,600 (288)
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Time-resolved chemiluminescent analysis of hydralazine in pharmaceuticals
Analytical and Bioanalytical Chemistry, 2005A new analytical method is proposed for determination of hydralazine (HZ) in pharmaceuticals--measurement of the chemiluminescence (CL) emitted after reaction with phosphoric-acidified KMnO4. The novelty of this method is the recording of the whole CL-time profile.
José A, Murillo Pulgarín +2 more
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Resolving a Historical Confusion in Population Analysis
1977As Robert K. Merton (1973) has so well discussed, creative scientists are not immune to preoccupation with priorities: their priorities. Alfred J. Lotka (1880 to 1949), the father of self-renewal models in linear population analysis, was least of all an exception in this regard.
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Data-Driven Resolvent Analysis
2020Benjamin Herrmann describes a data-driven algorithm to perform resolvent analysis from fluid mechanics to obtain the leading forcing and response modes, without recourse to the governing equations, but instead based on snapshots of the transient evolution of linearly stable flows.
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Design and analysis of a resolver for 2DOF tubular motor
IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016Many multiple degree-of-freedom (DOF) motors have been researched. However, there are few sensors for multiple DOF position detection. If multiple DOF position is detected by several 1DOF sensors, the machine gets bigger and more complicated. To solve this problem, this paper proposes a new resolver for helical 2DOF position detection.
Hiroki Tsujimoto +5 more
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Second Class Resolver: a retrospective analysis.
European journal of paediatric dentistry, 2014To evaluate the use of Second Class Resolver (SCR), a new fixed orthopaedic appliance, for the treatment of skeletal Class II malocclusion in growing subjects.Design Retrospective analysis. Forty subjects were treated with Second Class Resolver (SCR). The mean age was 8 years at the beginning of treatment and 10 years at the end of treatment.
D'ATTILIO, Michele +5 more
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Time-Resolved Spectral Measurement for Fluorescence Analysis
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019A time-resolved spectral measurement system was developed for analysis of fluorescent materials. This system used no fast-response instruments but consisted of a continuous-wave laser diode and an ordinary CCD-based spectrometer (exposure time: 1 s). A galvano-mirror with a vibration frequency of 30 Hz realized an efficient spectral measurement with a ...
Mitsunori Saito +2 more
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Time resolved spectral analysis
2003Abstract Chromophoric prosthetic groups are central to the chemistry of a large number of enzymes, such as those utilizing flavins, heme, cobalamin, iron-sulfur centres, and pyridoxal. Prosthetic groups generally participate by direct chemical reaction with substrates causing changes to the absorbance spectra that allow the reactions to ...
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Spatially Resolved Organic Analysis of the Allende Meteorite
Science, 1989The distribution of polycyclic aromatic hydrocarbons (PAHs) in the Allende meteorite has been probed with two-step laser desorption/laser multiphoton ionization mass spectrometry. This method allows direct in situ analysis with a spatial resolution of 1 square millimeter or better of selected organic molecules.
R, Zenobi +3 more
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Analysis by reflectance spectroscopy of nucleotides resolved on chromatoplates
Analytical Biochemistry, 1967Abstract A procedure has been devised whereby five nucleotides—adenosine-3′-(2′)-phosphoric acid, adenosine 5′-diphosphate, cytidine-2′(3′)-phosphate, disodium guanosine-3′(2′)-phosphoric acid—resolved on cellulose thin-layer plates can be analyzed by means of ultraviolet reflectance spectroscopy.
V T, Lieu +3 more
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Global Analysis of Time-Resolved Fluorescence Data
2013In this chapter, we describe the global analysis approach for processing time-resolved fluorescence spectroscopy data of molecules in the condensed phase. Combining simultaneous analysis of data measured under different experimental conditions (spatial coordinates, temperature, concentration, emission wavelength, excitation intensity, etc.) with the ...
Anatoli V, Digris +3 more
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