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The reduction of the barrier generally occurs under high electric fields and enhanced temperature [1].
The wider bandgap of the 4H-SiC causes a reduction in the barrier at the oxide interface.
Usually high temperature and high electric field (in the oxide) result in the accelerated breakdown of the oxide, thereby enabling us to collect reliability data in a reasonable period of time.
Very little shift in threshold voltage was observed between the pre-stress and post-stress data, indicating excellent stability of the power MOSFETs.
A sample of data up to 625 hours is shown in Figure 8.

In this work, the wool keratin solution was obtained by a reduction method, and mixed with sodium carboxymethyl cellulose (CMC) solution in order to prepare blend membranes.
In this paper, a reduction method was adopted to dissolve wool and prepare keratin solution as reported previously.
The thickness of membranes was measured by an electronic digital micrometer; each sample was tested five times at different positions, and the average of the data was used.

A 42%-increase of the maximum peak-to-peak value of the echo pulse response, a 52%-reduction of the ring down time and a 200%-increase of the bandwidth can be achieved by using the backing material.
In order to improve the accuracy of data processing and effectiveness of the structural health monitoring, the increase of the sensitivity and resolution of the sensor are desired through a reasonable selection of backing material that matches well with the piezoelectric element [4].
The time domain response and frequency spectrum of CPUS, tungsten power/epoxy resin backing layer From the time domain responses in Figs. 2~5, it can be seen that, under resonant frequency excitation, no distortion of the received waveform, significant increase of the first pulse amplitude and peak-to-peak value, as well as a reduction of the pulse shock time are shown when metal powder/epoxy resin composite materials backing layers are used.

Increasing the temperature of thermal stabilization, as well as the tensile load onto the bundle causes a significant reduction in the time during which the process of dispersion of precursor material develops and formation of a new high dispersion phase of thermostabilized fiber.
The length reduction is 9% at the same temperature of isothermal stabilization.
These data suggest that the formation of the structure of thermostabilized PAN fiber proceeds via the formation of a new fine phase (average size ~1 nm) in local microvolumes - CSD3.

This paper provides a valuable reference for the vibration source identification and structural vibration reduction.
Firstly the power spectrum density functions are obtained by calculating the data in time domain.
This paper provides a valuable reference for the vibration source identification and structural vibration reduction.

Test results show that with micro-channel size decrease, the percentage reduction in viscosity increases and the difference of viscosities in different micro channels reduces with increasing shear rate.
For Non-Newtonian fluids, two corrections are commonly applied to capillary data to obtain the correct viscosity of polymeric fluids.
For different materials, the reduction of viscosity at the same shear rate is various, which shows that the variation of viscosity has relationship with polymer melt category.

It was shown that reduction of carbon and oxygen components from the surface contaminants as well as the existence of a nonstoichiometric SiOx layer on the Si surface contributed to the hydrophilicity of the substrate.
Si2p peak fitting data show that plasma exposure reduces the concentration of Si-O bonds, representing nonstoichiometric (SiOx) in natural silicon oxide on the silicon surface.
Reduction of surface contaminants containing carbon and oxygen components as well as existence of the nonstoichiometric SiOx layer on the top of the Si surface contribute to the hydrophilicity of the substrate.

In order to reveal the the performance of full-length pre-stressed anchor bolts, and research the rock pressure behavior law, a combination method of FLAC3D and situ tests were presented, the conclusions were drawn as following: the prestress of full-length pre-stressed anchor bolt was approximately uniform distribution along the slow anchoring section of the rod, while in the fast anchoringthe segment showed a negative exponential or linear form of attenuation, and the bolt axial load was biggest in the neutral point; the neutral point of full-length pre-stressed anchor bolt move to deeper of the drill hole with the reduction of rock strength, while neutral point shifting deeper would accelerate the destruction of the anchorage zone in deep rock formations, deteriorating the anchoring effect. the methods of pre-grouting and grouting bolt (or cable)should be taken to improve the anchoring force.
Bolt neutral point in siltstone is 100mm from the bolt tail, indicating that the neutral point of the highly prestressed bolt moves deeply to the surrounding rock as the rock strength reduction.
The monitoring data of 1 # and 2 # anchor showes that the prestress of the full-length pre-stressed bolts is approximately uniform distribution along the slow anchoring section of the rod, while it showes a trend of gradual decay in the fast anchoring section.
(2) The position of neutral point of the highly prestressed bolt moves deeply to the surrounding rock as the rock strength reduction, and the neutral point moving deeply will accelerate the destruction of the deep rock in the anchorage zone

The reduction of Jc with the applied magnetic field requires further improvements to reduce weak links.
These data show that the higher densification leads to higher values of Jc, due to higher density of pinning centers.
The magnetic field dependence of Jc is approximately exponential with field [9], and leads to a high reduction: For sample MB1-9, with highest Jc, 0.6x 10 6 A/cm2 at 0 Tesla, it reduces to 0.3x 10 6 A/cm 2 at 1 Tesla and to 0.11 x 10 6 A/cm2 at 2 Tesla.
This reduction is comparable to the one found in other studies and shows that improvements have still to be done in the materials processing in order to reduce the weak links.

The article summarized the ball screw causes of the vibration, noise, comprehensive both at home and abroad research results to the ball screw vibration and noise generating mechanism .Then pointed out that the ball screw noise generation is the main reason of the screw groove waveness arouses nut forced vibration.Introduced the latest progress of the ball screw drive system modeling and the vibration model analysis,specific introduces several methods of reducing vibration and noise reduction.
Antivibration and Noise Reduction Method (1) Improve the precision of the ball screw The ball screw precision shortage is the most important factor in the reason of generates noise, and inevitable happened in the mechanical processing.
For the selected ball screws, have data show that the noise level is in proportion with dN values (d is ball rail center diameter, N is rotation number) of the logarithm, so we should the choice the lower value of the dN.
(6) Other noise reduction measures Mainly includes to ball nuts surrounding configuration noise casing; Outside of intubations fixed high strength engineering plastic and will guide bead tube covered completely exposed portion; In the ball screw shaft trip ends configuration buffer shock absorbers.