Show simple item record

dc.contributor.advisorBriano, Julio G.
dc.contributor.authorFlorián Algarín, Vivian Maria
dc.date.accessioned2018-05-16T16:46:47Z
dc.date.available2018-05-16T16:46:47Z
dc.date.issued2005
dc.identifier.urihttps://hdl.handle.net/20.500.11801/612
dc.description.abstractThe presence of buried landmines is an environmental problem in many parts of the world; strategies to detect and remove landmines are being developed; one of these strategies is the developing of chemical based sensors. Even when most landmines cases are made from plastic, small amounts of explosive may diffuse through the case (or through cracks), enter the soil and migrate to the surface. The spatial and temporal concentration distribution of chemicals released from a landmine at the soil surface is influenced by: the type of soil, environmental factors, water and gaseous phase mobility, molecular and mechanical diffusion, adsorption characteristics, water content, and compaction. In this work we measure the concentration of chemicals at the surface at different ambient conditions. Experiments are carried out using a series of soil tanks with controlled conditions such as: temperature, moisture content, relative humidity and radiation (UV and Visible). Gas Chromatography (GC-µECD) with Solid Phase Microextraction (SPME) and direct injection were used for the analysis of explosives. The results of the experiments will be used to provide validation for the simulation model describing the spectroscopic signature and its transport though soil. We have obtained the trends on the effect of the ambient conditions on the chemical signature. Of particular interest is the presence of several degradation compounds as time evolves.en_US
dc.language.isoenen_US
dc.subjectLandmine detectionen_US
dc.subjectChemical sensoren_US
dc.subject.lcshLand mines--Detection.en_US
dc.subject.lcshChemical detectors.en_US
dc.titleEffects of environmental parameters on the chemical signature of landminesen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2005 Vivian Maria Florián Algarínen_US
dc.contributor.committeeHernández, Samuel
dc.contributor.committeeBenítez, Jaime
dc.contributor.representativeMina, Nairmen
thesis.degree.levelM.S.en_US
thesis.degree.disciplineChemical Engineeringen_US
dc.type.thesisThesisen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Chemical Engineeringen_US
dc.description.graduationYear2005en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • Theses & Dissertations
    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

Show simple item record