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.
Because of kinds of regulating commands, Oil and gas pipelines in operation can occasionally generate a series of conditions consisting of stopping transportation, starting transportation, distribution, increment, internal pump regulation of single station or multi-stations, as well as valve opening-adjustment. These normal conditions together with the detected leakage condition can easily cause false...
With regards to the characteristics of work conditions on oil pipeline, such as complicated changes, lack of prior knowledge and difficult classification, simulated annealing K-means clustering algorithm are proposed. Samples, which include various work condition changes of oil pipeline, are selected from pressure data collected in field. In order to analyze data conveniently, each group of raw data...
Ordered Fe 14 Ni 86 alloy nanowire arrays implanted in anodic alumite template (AAT) have been fabricated by electrodepositing the corresponding material into the nanochannels. The wires are 43nm in diameter and 50μm in length. Their aspect ratio (ratio of length to diameter) is more than 1000, which results in distinctive magnetic anisotropy. The easy magnetization axis of this system...
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.