The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Immunoassay based on laser-induced photoacoustic (PA) effect is demonstrated for the detection of disease biomarkers with a significantly enhanced sensitivity. The PA immunoassay employs metal nanoparticles as photoacoustically detectable labels. Compared to the colorimetric method, the PA approach offers sensitivity improvements over 60-fold and 100-fold for the microtiter plate-based immunoassay...
As a new kind of liquid biochip, Photonic crystal (PC) encoded beads chip utilizes the structure color of PC and the fluorescence label to encode and detect biomolecules respectively. In this paper, the mechanism and the optical structure of the detection instrument for PC encoded beads chip are described. Then the mathematical morphology algorithm and Otsu method is used to enhance the image quality...
Spatial data warehouse has the ability of integrating the mining geological hazard data, and gives the support of complex data analyzing and high-level decision-making. In order to construct such a mining geological hazard multi-dimensional data warehouse, based on the introduction of several concepts of data warehouse, the paper proposed the formal definitions of the dimension, the dimension hierarchy,...
The indoor and outdoor particle number concentrations of different size ranges (0.3-0.5μm, 0.5-1.0μm, 1.0-3.0μm, 3.0-5.0μm, and ≥10.0μm) were measured in an air-conditioned office without tobacco smoking and fresh air. The total mass efficiency of the normal filter installed in the air handing system was measured and calculated to below the 9%, which is much smaller than the efficiency of the filters...
Errors or outliers are prone to be made on account of various accidental factors or system errors in the observation process of ground object spectrums. To find out and remove the data records with outliers from the field spectroscopy data of several typical crops in Yanzhou mining area, we proposed a field spectroscopy data quality controlling theory using cluster analysis methods and box-and-whisker...
The paper presents a new type of oxygen-enriched burner that is applying for patent of China. It can be used in pulverized coal fired boilers of power plant and achieve the ignition technology of oxygen-enriched and oil-free. It uses oxygen-enriched gas transport pulverized coal and adopts heat exchange technology of counter flow and downstream in three casing pipes, which can increase the maximum...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.