A novel compact fiber-coupled NIR system based on a DFB diode laser source is employed as a portable and sensitive gas sensor for trace detection of combustion pollutant molecules. We demonstrate the performance of such an NIR gas sensor by tracing the absorption lines of CO and CH4 using 2f-WMS technique at moderate temperature of T ~ 600°C in the recuperator channel of an industrial furnace...

The study area is located in Jabal-Barez Ranges, southeastern part of Kerman Copper Belt (KCB), where the porphyry copper mineralization such as Kerver occurs. This article deals with the enhancement of hydrothermal alteration minerals for exploration of porphyry Cu mineralization, and differentiates intense hydrothermal alteration zones from those with low intensity. Shortwave Infrared (SWIR) ...

The purpose of this study was to examine the capability of hyperspectral narrow wavebands within the 400–900 nm range for distinguishing five cash crops commonly grown in Northeastern Ontario, Canada. Data were collected from ten different fields in the West Nipissing agricultural zone (46°24'N lat., 80°07'W long.) and included two of each of the following crop types; soybean (Glycine max), can...

We demonstrate vertical cross-sectional (XZ-plane) images of near-infrared (NIR) fluorescence with a handheld dual axes confocal endomicroscope that reveals specific binding of a Cy5.5-labeled peptide to pre-malignant colonic mucosa. This view is perpendicular to the tissue surface, and is similar to that used by pathologists. The scan head is 10 mm in outer diameter (OD), and integrates a one ...

Abstract. The TROPOspheric Monitoring Instrument (TROPOMI), due to its wide swath, performs observations over the ocean in every orbit, enhancing monitoring capabilities of methane from space. In short-wave–infrared (SWIR) spectral band surfaces are dark except for specific sun glint geometry, which specular reflectance detected by satellite provides a signal that is high enough retrieve with a...

This study focuses on the properties of reflection and absorption light in visible near infrared range acrylic dyes related materials for coloring. The research aims to understand use fine arts simulate these printing purposes. Two groups were studied using spectroscopy determine their (VIS) (NIR) regions. measurements performed with forensic cameras equipped 24 filters 400–1000 nm. results dig...

Imaging spectroscopy provides the opportunity to monitor nutrient status of vegetation. In crops, prior studies have generally been limited in scope, either a small wavelength range (e.g., 400–1300 nm), number crop cultivars, single growth stage or growing season. Methods that are not time- site-specific needed use imaging for routine monitoring status. Using data from four cultivars potatoes (...

La agricultura de precisión (AP) apunta a identificar la variabilidad del cultivo y suelo en un lote para mejorar el manejo optimizar empleo insumos. Los mapas rendimiento son herramientas relevantes planificar AP. índices vegetación (IV) provenientes teledetección permiten monitorear variación espacio-temporal los cultivos durante estación crecimiento. El objetivo presente trabajo fue evaluar ...

Visible (Vis) and near infrared (NIR) reflectance spectroscopy is a rapid and non-destructive technique that has found many applications in assessing the quality of agricultural commodities, including wool. In this study, Vis and NIR spectroscopy combined with multivariate data analysis was investigated regarding its feasibility in predicting a range of fibre characteristics in raw alpaca wool ...

Fusarium head blight is a fungal disease that affects the world’s small grains, such as wheat and barley. Attacking the spikelets during development, the fungus causes a reduction of yield and grain of poorer processing quality. Secondary metabolites that often accompany the fungus, such as deoxynivalenol (DON), are health concerns to humans and livestock. Conventional grain inspection procedur...