This work proposes a hybrid space vector modulation (HSVM) scheme for multiport converters (MHCs). Moreover, the impact of shifting auxiliary currents from main ones is proposed and investigated in order to enhance converter efficiency. The operational schemes have been implemented three-phase 5 kW MHC prototype. It shown that HSVM can improve efficiency by 0.3% at full load with respect modula...

In this paper we discuss some aspects of designing low power asynchronous wrappers for use in GALS based communication systems. We propose a general method for designing asynchronous wrappers for use in asynchronous multiport-to-multiport communication channels with low swing busses and variable power supply voltages.

Objective. To investigate feasibility of multiport and laparoendoscopic single-site (LESS) nonischemic laparoscopic partial nephrectomy (NI-LPN) utilizing bipolar radiofrequency coagulator. Methods. Multicenter retrospective review of 60 patients (46 multiport/14 LESS) undergoing NI-LPN between 4/2006 and 9/2009. Multiport and LESS NI-LPN utilized Habib 4X bipolar radiofrequency coagulator to f...

Objective. To compare laparoendoscopic single-site (LESS) and conventional multiport adrenalectomy in patients with aldosterone-producing adenoma (APA). Material and Methods. We retrospectively reviewed patients who had been clinically confirmed with unilateral APA and who underwent LESS or multiport adrenalectomy between 2009 and 2014. Perioperative data were obtained for all patients. Blood p...

BACKGROUND Surgical approaches such as transanal endoscopic microsurgery, which utilize small operative working spaces, and are necessarily single-port, are particularly demanding with standard instruments and have not been widely adopted. The aim of this study was to compare simultaneously surgical performance in single-port versus multiport approaches, and small versus large working spaces. ...

We present a multiport measurement algorithm that uses only conventional in-line calibrations. The algorithm is well suited to performing on-wafer multiport measurements, and can correct with the thru-reflect-line calibration. We demonstrate the algorithm in a four-port measurement system.

Multiport memories are increasingly used in smart-phones, multimode handsets, multiprocessor systems, network processors, graphics chips, and other high performance electronic devices [1, 2, 4, 8]. This paper presents a fully distributed software solution to the arbitration problem in multiport memory systems. Our solution is simple, efficient, and assures LRU fairness.

This study proposes a novel isolated bidirectional multiport converter (MPC) based on switched-capacitor and half-bridge with an effective control scheme for photovoltaic (PV) powered battery buffered systems. The proposed power electronics interface integrates the converters to which ports are connected coupled common dc busbar high frequency transformer (HFT). Thus, three-port is formed witho...

In this study, expressions for the radiation quality factor Q and the input impedance seen at any terminal of a multiport antenna are derived. It is shown computationally that because of the possibility to adjust the antenna current distribution through suitable feeding/loading a multiport antenna can perform lower Qs than a similar single-port antenna. © 2008 Wiley Periodicals, Inc. Microwave ...

On-chip multiport memory cores are crucial primitives for many modern high-performance reconfigurable architectures and multicore systems. Previous approaches for scaling memory cores come at the cost of operating frequency, communication overhead, and logic resources without increasing the storage capacity of the memory. In this paper, we present two approaches for designing multiport memory c...