Forensic hair analysis can be used as alternative evidence next to body fluids, and to obtain retrospective timeline information of an individual’s drug exposure. Chapter 1 describes the general concepts of drug incorporation into hair, external contamination, and the current status and limitations of hair analysis methods are introduced. Furthermo...
The main objective of this paper is the use of milk composition data as a management tool. Milk composition, and in particular, milk fat content and fatty acid profiles may be significantly altered due to a variety of factors. These factors are reviewed in the literature; they include diet, animal (genetic) selection, management aspects and animal ...
The main objective of this paper is the use of milk composition data as a management tool. Milk composition, and in particular, milk fat content and fatty acid profiles may be significantly altered due to a variety of factors. These factors are reviewed in the literature; they include diet, animal (genetic) selection, management aspects and animal ...
With the upcoming global warming forests are under threat. To forecast climate change impacts and adaptations, there is need for developing improved forest monitoring services, which are able to record, quantify and map bio-indicators of the forests’ health status across the globe. In this context, Earth observation (EO) can provide a substantial a...
Nous abordons dans ce memoire deux methodes d'exploration des tissus biologiques. Premierement nous presenterons une technique spectroscopique invasive d'investigation des tissus cerebraux profonds. Cette technique utilisant des sondes optiques en miniature tire partie de la forte retrodiffusion de la lumiere par les tissus biologiques. Ainsi, l'at...
Eind 2003 is door de leerstoelgroep Geo-Informatie en Remote Sensing van Wageningen UR een veldspectrometer (ASD Fieldspec Pro FR) aangeschaft. Naar aanleiding hiervan wordt ingegaan op wat een veldspectrometer meet, hoe die gebruikt wordt, en wat de praktische toepassingen zijn. Dit aan de hand van 3 projecten
Keywords: Imaging spectroscopy, imaging spectrometry, remote sensing, reflection, reflectance, grass sward, white clover, recognition, characterisation, ground cover, growth monitoring, stress detection, heterogeneity quantificationThe potential of imaging spectroscopy as a tool for characterisation of grass swards was explored with respect to grow...
The potential of an experimental imaging spectroscopy system with high spatial (0.28-1.45 mm2) and spectral (5-13 nm) resolution was explored for early detection of drought stress in grass. A climate chamber experiment was conducted with nine Lolium perenne L. mini swards with drought stress treatments at two nitrogen levels. Images were recorded o...
