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Discrete Analysis Articles & Analysis
16 articles found
SediMite® was one of three activated carbon (AC) amendments used in a field pilot study in the Berry’s Creek Study Area (BCSA) in the Hackensack Meadowlands of northern New Jersey. Sediments in intertidal marshes of the BCSA are dominated by Phragmites reed and contain PCBs, mercury and other contaminants. A resulting fish consumption advisory is in effect due to ...
The spectral Raman information is sensitive to the vibrational modes of the sample and provides extensive chemical, physical and structural insight, while the confocal optics of the microscope enable the analysis volume within the sample to be spatially filtered with high resolution in both the lateral (XY) and axial (Z) axes. The synergy between the spectral and spatial ...
No matter which sequencing company performs sequencing or data analysis, a standard analysis method will be seen in the final report: functional enrichment analysis. ...
The objective of this work is to introduce a forecasting method for UV-Vis spectrometry time series that combines principal component analysis (PCA) and discrete Fourier transform (DFT), and to compare the results obtained with those obtained by using DFT. ...
Both offer fast, automated, colorimetric analysis of multiple samples, however, the answer depends on the current and future analytical requirements of the laboratory. SEAL’s discrete analyzers employ sample trays and discrete reaction wells in which the colorimetric reaction takes place. ...
The use of spiral links for preventing diagonal failures in beams will enable designers to utilise transverse reinforcement geometry for a better confinement effect. However, to develop such model it is essential that better understanding of the actual structural behaviour of beams with different transverse shear reinforcement configuration is reached. This can be achieved by looking further into ...
We focus on three case-study cities: Amsterdam, Leipzig and Genoa. We use discrete choice models and factor analysis to analyse the preferences of tourists for cultural heritage and e-services. ...
By using wavelet Multiresolution Analysis (MRA), summation of detail coefficients is extracted for three-phase fault currents. ...
Confirmatory site investigation techniques revealed carbon tetrachloride soil gas concentrations at a depth of approximately 35 m (115 ft), near an area that is currently undergoing site remediation. The analysis of discrete soil samples taken in regions where significant soil gas concentration exists resulted in non-detections, indicating that dense non-aqueous ...
The paper presents an approach to availability calculation of discrete transport system (DTS). The system is described by the formal model, which includes reliability and functional parameters of DTS. The availability and average availability of the system – defined in a functional way – is discussed as a function of different essential parameters when the DTS is ...
This paper describes the use of surfactants to prepare discrete water samples (“grab-samples”) for analysis, eliminating the need for hazardous, organic extraction solvents. ...
In this paper, we use discrete choice modelling to analyse inter-modal competition in the most important route within The Canary Islands (Spain). ...
While ion trap instrumentation continues to become smaller, more sensitive, and equipped with more high performance features (i.e., tandem MS, extended mass range, increased mass resolution), the development of improved sample introduction systems and tandem MS methods for target compound analysis are essential to making DSITMS techniques more widely used for these applications. ...
The papers and comments in this issue focus on four broad areas related to understanding and modeling choices: (1) The use of laboratory experiments to improve valuation methods; (2) The design of stated preference choice set and choice occasions; (3) Latent class models as means of identifying and accommodating preference heterogeneity; and (4) Accommodating uncertainty about the “true” model, ...
Mixed logit models represent a powerful discrete choice analytical model but require assumptions about the functional form of the parameter distributions. The use of unbounded distributions, such as the normal distribution, may be regarded as unsuitable where theory indicates that all are negatively affected by increases in an attribute, such as price. Bounded distributions such as the triangular ...
This report briefly addresses procedures, equipment, and logistics for the collection and timely (less than 48 hr) on-site analysis of VOCs in discrete soil and groundwater samples. The collection, preservation, and preparation procedures presented strive to acquire and maintain analyte concentrations that are representative of the location and medium from ...