Reliability research of thyristors for HVDC transmission system
Scientific ReportsThe long-term operation performance of HVDC transmission systems is significantly influenced by the reliability of thyristors. However, the current reliability research of thyristors is mainly based on the leakage current and there is no comprehensive ...
Yang Xu +4 more
doaj +1 more source
Effect of Forward and Reverse Suturing on Nerve Regeneration Following Facial Nerve Axotomy
BiomedicinesBackground/Objectives: When the facial nerve is severed and a nerve graft is required, motor nerves are typically connected in the forward direction, while sensory nerves are connected in the reverse direction.
Jae Min Lee +6 more
doaj +1 more source
Towards recovery of complex shapes in meshes using digital images for reverse engineering applications [PDF]
, 2010 When an object owns complex shapes, or when its outer surfaces are simply inaccessible, some of its parts may not be captured during its reverse engineering. These deficiencies in the point cloud result in a set of holes in the reconstructed mesh.
PANCHETTI, Minica +2 more
core +4 more sources
Information Hiding and Recovery using Reversible Embedding
International Journal of Computer Applications, 2011 The main objective of this work is to develop data embedding technique that not only embeds secret message, in the form of binary bit stream, to the host image without any auxiliary information or location map, but also extracts that embedded secret message at decoder and restores the original content of host image, which are manipulated after the ...
S. N. Mali, M. L. Dhore, A. S. Sonawane
openaire +1 more source
Transient shutdown analysis of low-temperature thermal diodes [PDF]
The various thermal diodes available for use in cryogenic systems are described. Two diode types, liquid-trap and liquid-blockage diodes, were considered to be the most attractive, and thermal models were constructed to predict their behavior in the ...
Williams, R. J.
core +1 more source
Power Semiconductor SMD Package Embedded in Multilayered Ceramic for Low Switching Loss
ETRI Journal, 2017 We propose a multilayered‐substrate‐based power semiconductor discrete device package for a low switching loss and high heat dissipation. To verify the proposed package, cost‐effective, low‐temperature co‐fired ceramic, multilayered substrates are used ...
Dong Yun Jung +7 more
doaj +1 more source
Reverse thrust performance of the QCSEE variable pitch turbofan engine [PDF]
Results of steady state reverse and forward to reverse thrust transient performance tests are presented. The original quiet, clean, short haul, experimental engine four segment variable fan nozzle was retested in reverse and compared with a continuous ...
Blodmer, H. E. +2 more
core +1 more source
A new type of pump turbine system specially developed for reverse osmosis application
, 1970 A n ew type of pump has been developed specially suitable for reverse osmosis applications. The hydrodynamic theory of the pumps is given as well as some mechanical calculations typical of these p u m p s.
Sánchez Tarifa, Carlos
core
Quiet, clean short-haul experimental engine (QCSEE) test results from a 14 cm inlet for a variable pitch fan thrust reverser [PDF]
A 1/13th scale model of the fan discharge duct was tested with a matrix of flare exlets. Exlets are flared fan nozzles configured for improved reverse flow inlet performance for reverse pitch fan applications. Results showed that a flare type exlet is an
Vier, W. F.
core +1 more source
On the application of novel high temperature oxidation processes to enhance the performance of high voltage silicon carbide PiN diodes [PDF]
In this paper, the application of a combined high temperature (1550°C) thermal oxidation / annealing process has been applied to 4H-SiC PiN diodes with 110 μm thick n-type drift regions, for the purpose of increasing the carrier lifetime in the ...
Burrows, S. E. (Susan E.) +9 more
core +1 more source