Global ETD Search
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 14 of 14 for “"fire debris"”.
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Statistical modeling of rare stochastic disturbance events at continental and global scales: post-fire debris flows and wildland fires
Chapter 1: Frequency-magnitude distribution of debris flows compiled from global data, and comparison with post-fire debris flows in the western U.S. Forecasting debris flow hazard is challenging due to the episodic occurrence of debris flows in response to stochastic precipitation and, in some …
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Statistical modeling of rare stochastic disturbance events at continental and global scales: post-fire debris flows and wildland fires
Chapter 1: Frequency-magnitude distribution of debris flows compiled from global data, and comparison with post-fire debris flows in the western U.S. Forecasting debris flow hazard is challenging due to the episodic occurrence of debris flows in response to stochastic precipitation and, in some …
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Desarrollo de métodos de caracterización de activadores en incendios
The phenomenon of arson, especially forest fires, is becoming in one of the major problems facing our society. In most cases human activity was responsible for these fires. It is estimated that more than 90% of the forest fires in the world are caused by humans (intentionally or accidentally). In …
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Using multivariate statistical procedures to identify ignitable liquid residues in the presence of interferences
… is a common technique used in the analysis of fire debris. In this approach, the chromatogram of an ignitable liquid residue (ILR) extracted from the debris is visually compared to chromatograms of neat liquids in a reference collection. However, the association of the ILR to the neat liquid …
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Mass Spectral Studies to Investigate Butylbenzene Fragmentation Pathway and Pyrolysis Products.
… investigation of pyrolysis products to aid in fire debris analysis. One of the major concerns in fire debris analysis is that pyrolysis products can mask the patterns of compounds of interest and make the chromatographic results interpretation extremely difficult. One of the approaches for …
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Quantitative Assessment of the effects of Microbial Degradation of a Simple Hydrocarbon Mixture
… or a complex organic mixture. In regards to fire debris analysis, the analyst is responsible for determining if an ignitable liquid residue is present. However, when extracted from soil-containing fire debris evidence, chemical degradation from microorganisms is observed to result in the loss …
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Forensic sample analysis using supercritical fluid extraction coupled with solid phase microextraction
… and food samples and the examination of fire debris for the presence of accelerants are also carried out. PAH could easily be extracted from complex matrices to give recoveries of up to 97% for some analytes at the optimized conditions of 90°C at 4500 psi over a 10 minute dynamic …
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Analysis of accelerants by gas chromatography-mass spectrometry and cyclic voltammetry for biosensor development
… review of a variety of topics, covering fire scene examination, accelerants and present accelerant detection techniques, biosensors, the human olfactory system and electrochemical analytical techniques such as cyclic voltammetry. An overview of all these areas allows a theory to be …
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Monitoring, characterizing, and preventing microbial degradation of ignitable liquids on soil
… bacterial growth. This is problematic for fire debris analysis as samples may be stored at room temperature for extended periods before they are analyzed due to case backlog. As a result, selective loss of key components due to bacterial metabolism can make identifying and classifying …
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Impact of heated passive headspace concentration on DNA recovery from semen in fire-scene evidence
… to recover ignitable-liquid residues from fire debris, but the elevated temperatures used may compromise subsequent DNA analysis when biological traces are present on the same exhibit. This study evaluated the feasibility of sequential chemical and biological examinations by investigating …
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Detection of gasoline from internal tissues for use in determining victim status at the time of a fire
In Ontario, fire investigators from the Office of the Fire Marshal (OFM) are responsible for determining the origin and cause of suspicious fires. As part of the investigation, fire debris samples are collected from the scene and analyzed by the Centre of Forensic Sciences. The standard practice is …
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Controls on sedimentation in submarine canyons: Nazare, Setubal and Cascais canyons, West Iberian Margin
… deep-sea setting, preserving a potential forest fire debris signal that is<br/>linked to a change in climate during the Little Ice Age.<br/>The conclusions from this work are that sedimentation in the west Iberian canyons is<br/>controlled by the complex interplay between several variables, the …
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An Evaluation of Tape for the Collection of Ignitable Liquid Residues from Non-Porous and Porous Surfaces
… are flammable mixtures used to accelerate a fire. ILs are composed of a broad range of hydrocarbons and include commonly encountered materials such as gasoline, diesel, and kerosene. In the event of a suspected arson, ILR may be found within the pores of materials at the crime scene such as …
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Analisis penerapan asuransi dalam pembiayaan kredit pemilikan rumah (KPR) pada PT. Bank Tabungan Negara (Persero), Tbk. Kantor Cabang Syariah Malang
… loan types in the mortgage life insurance and fire insurance. The method used is descriptive qualitative method. The data of this study include the primary data and secondary data. Primary data is the main data of this study. While secondary data used to support the primary data. Data were …