Abstract:
Methods including applying a photo-activated catalyst to a window, directing an ultraviolet light onto the window, producing a bleach via an oxidation reaction, and breaking down organic compounds located on the window using the bleach are provided. Also provided herein are systems including an ultraviolet light source and a window having a photo-activated catalyst layer.
Abstract:
A monitoring system configured to receive an on-line sample associated with a process includes a sample chamber positioned to receive the on-line sample and a detector positioned to selectively receive and detect multiple wavelengths of light transmitted through the sample during an absorbance measurement, and emitted by the sample during a fluorescence measurement in response to illumination by each of the at least one excitation wavelength. An optical fiber couples light transmitted through the sample and directs the transmitted light to the multi-channel detector during the absorbance measurement. Optics direct light emitted by the sample during the fluorescence measurement to the detector without passing through any optical fiber. A computer in communication with the detector is configured to correct the fluorescence measurement using the absorbance measurement and determine a sample parameter based on the fluorescence and absorbance measurements of the on-line sample.
Abstract:
A method can include transmitting (142), from a light source (46a, 46b), light through a fuel tank ullage, and determining (144), by a processing device, an amount of absorption of at least one wavelength of the transmitted light. The method can further include determining (146), by the processing device based on the amount of absorption of the at least one wavelength of the transmitted light, a chemical composition of the fuel tank ullage.
Abstract:
Es wird eine Vorrichtung und ein Verfahren zur Erfassung von zumindest teilweise spiegelnden Oberflächen beschrieben. Die Vorrichtung umfasst eine Detektionsfläche und eine Beleuchtungseinrichtung, die ausgebildet ist, um ein Muster per Spiegelung über die zumindest teilweise spiegelnde Oberfläche auf die Detektionsfläche zu projizieren.
Abstract:
A detection device (100) detects an analyte that may be contained in a specimen. The detection device (100) includes a plurality of gold nanoparticles, an optical trapping light source (101), an illumination light source (102), an objective lens (103), an image pick-up device (108), and a computation unit (106). The plurality of gold nanoparticles are each modified with a probe DNA allowing the analyte to specifically adhere thereto. The optical trapping light source (101) emits polarized light for assembling the plurality of gold nanoparticles together. The objective lens (103) focuses and introduces the polarized light into a liquid containing a specimen and the plurality of gold nanoparticles. The image pick-up device (108) receives light from the liquid. The computation unit (106) detects an analyte based on a signal received from the image pick-up device (108).
Abstract:
A molecular sensor that utilises dichroism can be used to identify the presence of specific molecules in a substance. The molecular sensor includes a sensor element comprising (i) a scaffold moiety and (ii) one or more receptor molecules for the target molecule attached to the scaffold moiety to form a scaffold/receptor complex, wherein the scaffold/receptor complex is modified to incorporate a chromophore and the modified scaffold/receptor complex has a high aspect ratio.
Abstract:
Sensor system with a sensor device comprising - a through-flow cell (2) for liquid (5-1, 5-2), - a detector device (6) for measuring a property of the liquid in the cell, for generating an associated detector signal, - a sensor control (7) for analysing the detector signal, characterized in that the sensor control is configured to detect a liquid transition (8) between two different liquids in the cell when a change (per unit time) in the detector signal is greater is than a threshold value. In the case of such a liquid transition detection, the sensor control generates an alarm signal. Liquid transition detection is carried out by means of optical, temperature and/or conductivity sensors.