Solid-state transformers (SSTs) are a promising solution photovoltaic (PV), wind, traction, data center, battery energy storage system (BESS), and fast charging electric vehicle (EV) applications. The traditional SSTs typically three-stage, i.e., hard-switching cascaded multilevel rectifiers inverters with dual active bridge (DAB) converters, which leads to bulky passives, low efficiency, high ...

BACKGROUND AND OBJECTIVES Single-site laparoscopic colorectal surgery has been firmly established; however, few reports addressing this technique in the inflammatory bowel disease population exist. METHODS We conducted a case-matched retrospective review of 20 patients who underwent single-site laparoscopic procedures for inflammatory bowel disease compared with 20 matched patients undergoing...

This paper describes three new march tests for multiport memories. A read (or write) port in such a memory consists of an n-bit address register, an n-to-2n-bit decoder (with column multiplexers for the column addresses) and drivers, and a K -bit data register. This approach gives comprehensive fault coverage for both array and multiport decoder coupling faults. It lends itself to a useful BIST...

Battery storage system (BSS) integration in the fast charging station (FCS) is becoming popular to achieve higher rates with peak-demand shaping possibility. However, additional conversion stage for integrating BSS increases losses, size, and cost. The concept of a partial power processing converter (PPPC) can mitigate this effect. Compared conventional used full (FPPC), PPPC reduces amount tra...

Modern wireless communications systems require improvement in capacity and data transmission speed. Adaptive array antennas separate spatially a desired wave from interference waves by controlling their radiation or beam pattern directivity. A digital beamforming (DBF) array performs adaptive beamforming by digital signal processing. However, the circuit scale, number of RF channels and power c...

Utilization of multiport-antennas represents an appropriate way for the mitigation of multi-path fading in wireless communication systems [1], [2]. Furthermore, by using multiport-antennas at both ends (Multiple Input Multiple Output, MIMO) in combination with appropriate spatiotemporal coding techniques, channel capacity can be greatly enhanced [3], [4]. However, to obtain low correlation betw...

Using the Bloch-Messiah reduction we show that squeezing is an “irreducible” resource which remains invariant under transformations by linear optical elements. In particular, this gives a decomposition of any optical circuit with linear input-output relations into a linear multiport interferometer followed by a unique set of single-mode squeezers and then another multiport interferometer. Using...

With asynchronous packet arrivals, we nd that, when the number of packet its is close to the fan-in of the crossbar switch, performance of a non-multiport central bu er switch becomes comparable to its multiport counterpart. Assuming the same amount of bu er memory, simulations of oblivious routing on hypercube indicate that split input bu ering outperforms central bu ering, even when dedicated...