Abstract We propose a waveguide-based near-eye display featuring dual-channel exit pupil expander, which is composed of an in-coupler, relay gratings, and out-coupler. Unlike the conventional displays, whose field views are usually non-split or partially split, our expander able to evenly split view into two halves. The greatest benefit doing so that upper limit could be significantly increased...

In this paper, we present a transmission scheme for a multiple-input multiple-output (MIMO) quasi-static fading channel with imperfect channel state information at the transmitter (CSIT). In this scheme, we develop a precoder structure to exploit the available CSIT and apply spatial coupling for further performance enhancement. We derive an analytical evaluation method based on extrinsic inform...

Terminal assignment problems are placement problems in channel routing in which each one of n entry terminals on one side of the channel is assigned to one of m exit terminals on the other side of the channel. We study solutions to terminal assignment problems that minimize the density. a cost measure closely related to the minimum channel width needed to wire the resulting channel routing prob...

In this study, the supersonic and choked subsonic flows through micro/nano channels are investigated using direct simulation Monte Carlo (DSMC) method. The supersonic case is simulated at different Knudsen numbers covering slip to transition flow regimes, while the effects of inlet Mach and back pressure are studied in details. The inlet/outlet pressure boundary conditions are suitably implemen...

This paper aims to characterize the Hall-thruster plasmadynamics in the framework of multi uidmodel. Effect of the ionization and the recombination has been included in the present model. Based on the experimental data, a third-order polynomial in electron temperature is used to calculate the ionization rate. The neutral dynamics is included only through the neutral continuity equation in the ...

Solid state drives (SSDs) implement large capacity, high performance storage devices by connecting multiple NAND flash memory chips in parallel using multiple channels. Channels can transfer data simultaneously, and each NAND package is composed of multiple dies, which can independently perform NAND operations such as read, write, and erase. Therefore, maximizing the parallel processing capabil...

In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of component Variable Length Coding (VLC) codebooks having different coding rates for encoding particular fractions of the input source symbol stream. With the aid of EXtrinsic Information Transfer (EXIT) charts, these fractions may be chosen suc...

Interaction of the lambdoid phage N protein with the bacterial transcription elongation factor NusA is the key component in the process of transcription antitermination. A convex surface of E. coli NusA-NTD, located opposite to its RNA polymerase-binding domain (the β-flap domain), directly interacts with N in the antitermination complex. We hypothesized that this N-NusA interaction induces all...

To probe the possible substrate exit channel(s) in cytochrome P450 (P450) 2B1 and to clarify the role of residues previously identified by site-directed mutagenesis, a homology model was constructed based on the X-ray crystal structure of a P450 2B4-inhibitor complex. Testosterone was docked into the active site of P450 2B1 and was then pulled out through three putative channels using steered m...

he protein that does everything, 14–3-3, has now been shown to direct traffic. Ita O'Kelly, Steve Goldstein, and colleagues (Yale University, New Haven, CT) find that 14–3-3 can displace ␤-COP from various proteins, thus freeing them from retention in the ER and leading to surface expression. Goldstein set out to find proteins interacting with the COOH terminus of a K ϩ leak channel, KCNK3, and...