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 government and public growing concern for waste is how to manage the returned products to realize the resource recycling and reuse. Product recovery operations are utilized to retrieve the desired parts and subassemblies out of the used products. It is important to design and balance disassembly line to optimize the product recovery process. Considering the disassembly precedence relationships...
This paper developed a measurement-while-drilling instrument based on predigested inertial measurement unit (PIMU) and presented a PIMU design with a rotational modulation device, thus improving precision of inertial sensors. Then, this paper proposed an integral surveying method based on inertial navigation system and dead reckoning, measuring motion parameters characterized by long-term high accuracy...
In order to take quantitative analysis on impact factors of energy consumption in crude oil gathering system, gray system theory analysis was adopted to evaluate energy consumption impact factors sequence of crude oil gathering system through the establishment of a crude oil gathering gray system model, the calculation of gray correlation coefficient and the establishment of gray associated sequence...
When Blog comes to the world, how to use Blog in education and instructions well has been one of the interesting studies among academic field increasingly. In this paper, by reading great material and communicating with the teachers in Rizhao open-up areal, it discussed the applications of Blog in education and teaching from sharing resources and communication of teachers, students and studentspsila...
In this paper, the clustering analysis method is used in the optimization of observed gravity data during the computation of local geoid, while the two slopes of terrain data can be utilized as criteria. Further, a numerical experiment is carried out in hill area. Compared with the result from non-deleted observed gravity data, the deleted data can still work out acceptable result of similar precision...
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.