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 MIMO two-hop relay network with power-splitting-based relaying is considered. Using a minimum mean-square-error criterion, the joint source-relay optimization problem with transmit power constraint and relay energy harvesting constraint is formulated. In order to address this non-convex problem, an iterative algorithm is proposed which converges to a local optimum. The Lagrangian dual function and...
Rapid pressureless low temperature sintering of Ag nanoparticles for bonding is achieved. Organic shells adsorbing on the surface of Ag nanoparticles to stabilize them are thinned to be a sparse protecting layer. Numerous coherent twin boundaries formed in sintered Ag nanoparticles with a grain size of 21 nm induce ultra-high thermal conductivity (229 W/m·K), which overcomes the intrinsic defect that...
Based on the ship vibration motion characteristics, in this paper, it has put forward a new kind of 3 rotations and 2 translations five degrees of freedom parallel mechanism, the 4-CPS/RPS, which suites for shipboard active vibration isolation. The inverse kinematic solution of the 4-CPS/RPS is obtained, the dynamics model is established by using Lagrange method; Then the wave model and ship motion...
To perform the opening valve task in the DRC (Darpa Robotics Challenge), trajectory planning for dual-arm of the humanoid robot is an important issue under the condition of constrained position and pose of middle points in the trajectory. Different approaches to open valves have been investigated in this study. For dual-arm work, the method of cubic angle curve interpolation in plane circular arc...
Rapid pressureless low temperature sintering of Ag nanoparticles for bonding is achieved. Organic shells adsorbing on the surface of Ag nanoparticles to stabilize them are thinned to be a sparse protecting layer. Numerous coherent twin boundaries formed in sintered Ag nanoparticles with a grain size of 21 nm induce ultra-high thermal conductivity (229 W/m·K), which overcomes the intrinsic defect that...
In this contribution, a multiple-input multiple-output heterogeneous network with physical-layer network coding is considered. The article proposes a coordinated joint transmitter and receiver design to tackle the interference problem between two-way relaying channel in small cell and uplink channel in macro cell. We design the transceiver on the basis that the data streams from two-way communication...
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.