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.
A modified double free-form surface (FS) model is proposed to optimize the optical lens based on surface fitting technology. A LED lens with double FS structure is designed based on this optimized double FS model as an application. To verify the advantages of this model, both a ray tracing simulation and a normalized irradiant detection are trialed by a LED test system. The experimental result shows...
In a petroleum cyber-physical system (CPS), interwell connectivity estimation is critical for improving petroleum production. An accurately estimated connectivity topology facilitates reduction in the production cost and improvement in the waterflood management. This paper presents the first study focused on computer-aided design for a petroleum CPS. A new CPS framework is developed to estimate the...
As international competition increases and specialization develops, ordinary logistic enterprise is no longer easy to undertake complicated logistic task. They are eager to And partners to operator business together. Selection of appropriate logistic partners is comprehensive problem which can impact the efficiency of logistic alliance. This paper presents a two stage framework to deal with this tough...
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.