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.
When the solid axle is detected by the conventional ultrasonic probes, the inspecting coverage of axle is very limited, especially for the press-fit part of axle where the signal-to-noise ratio of detection is very low, and the echoes are difficult to distinguish, which easily leads to false judgment or missing judgment. In view of this phenomenon, a kind of dedicated phased array ultrasonic probe...
CeO2–ZrO2–MxOy (M=Y; La) mixed oxides, prepared by co-precipitation method and characterized by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), Raman spectra (RM) and oxygen pulse reaction, were comparatively investigated to elucidate the combinational effects of Y and/or La oxide promoters on the catalytic activity and anti-aging performance of monolithic cordierite honeycomb catalysts with...
The traditional security model, aimed at ensuring privacy and integrity of information, has limitations on special networks such as the electric power information network, which emphasizes the stable operation and cooperation of the electricity service. Then a new idea on protection of network service security is proposed in this paper. Firstly, divide the network service into two parts as processes...
We introduce the discretized model for acoustic scattering by objects of arbitrary shape. And a new method to compute scattering field is also put forward, which is based on the dealing with singular integral. Through simulating, we present polar plots of scattering pressure which is under three circumstances of different direction, different frequency of incident sound wave and different position...
Floating car data (FCD) is an important material for a broad range of application such as traffic management and control, traffic conditions computation. The traditional map-matching algorithms were more focused on the accuracy of the positioning on the road network than on the computational speed of the algorithms. This approach designs a structure of road network which divides the road network into...
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.