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.
Electron energy-loss magnetic chiral dichroism (EMCD) spectroscopy, which is similar to the well-established X-ray magnetic circular dichroism spectroscopy (XMCD), can determine the quantitative magnetic parameters of materials with high spatial resolution. One of the major obstacles in quantitative analysis using the EMCD technique is the relatively poor signal-to-noise ratio (SNR), compared to XMCD...
An improved scheduling algorithm is proposed for optimizing the sum-rate gain in a multiuser Multiple-Input and Multiple-Output (MU-MIMO) downlink system with limited feedback and Block Diagonalization (BD) precoding. A low bits feedback for user selection is followed by a high bits feedback to improve the system sum-rate capacity. Based on our analysis and the simulation result, it shows that the...
In this paper, a low-cost test methodology for dynamic specifications of high precision sigma-delta (ΔΣ) analog-to-digital converters (ADCs) is presented. Dynamic testing of ADCs requires an input test stimulus with total harmonic distortion (THD) and signal-to-noise ratio (SNR) about 10 dB better than the ADC under test. ΔΣ ADCs are inherently high resolution converters with excellent THD and SNR...
Evanescent field based imaging and sensor technologies have been widely used for a long time, but only recently has TIRF been introduced for bio-imaging. This paper will discuss the reasons and give a brief summary of the recent development of TIRF which is also based on evanescent wave excitation, and which is well suited for ultra thin optical sectioning (hundreds of nanometres) at cell-substrate...
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.