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.
The round trip time of the light pulse limits the maximum detectable frequency response range of vibration in phase-sensitive optical time domain reflectometry (φ-OTDR). We propose a method to break the frequency response range restriction of φ-OTDR system by modulating the light pulse interval randomly which enables a random sampling for every vibration point in a long sensing fiber. This sub-Nyquist...
High resolution and dimensional hyperspectral data are required to develop high performance platforms for processing. FPGA provides a very effective approach for accelerating hyperspectral image analysis algorithms. In this paper, an FPGA-based acceleration flow for hyperspectral data processing is implemented, which considers the application scenario that the computer provides the hyperspectral images...
In thermal error modeling, traditional methods of system identification modeling based on modern control theory are influenced unfavourably by the boundedness of modeling information (data) and unmodeled dynamics, so it is difficult to improve the robustness and accuracy of the model. With the appearance of big data, a fresh angle of view, however, is provided for improving the model accuracy and...
The response of chlorophyll fluorescence parameters characteristics and spectral reflectance in New sugarcane 22 (T22) were studied under 4 different water treatments in pots. The results showed that, except qN increased, other chlorophyll fluorescence parameters as Fv/Fm, PS II, rETR and qP decreased with increasing of water stress. Photo system can be injuried by drought, the injury will be further...
With the rapid development of agricultural modernization in China great changes have taken place in the rural economy visage. But subsequently various pollution problems emerge out more frequently and especially because of the aggravating non-point source pollution the safety of drinking water in the vast rural areas has suffered a lot from severe threats which is drawing more and more attention....
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.