J. Du

Publications412
h-index35
Citations6,070
Highly Influential Citations142
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A Regression Approach to Speech Enhancement Based on Deep Neural Networks
TLDR
In contrast to the conventional minimum mean square error (MMSE)-based noise reduction techniques, we propose a supervised method to enhance speech by means of finding a mapping function between noisy and clean speech signals based on deep neural networks (DNNs). Expand
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  • PDF
Enhanced 2,3-butanediol production by Klebsiella oxytoca using a two-stage agitation speed control strategy.
Batch fermentative production of 2,3-butanediol by Klebsiella oxytoca was investigated using various oxygen supply methods though varying agitation speed. Based on the analysis of three kinetic… Expand
  • 118
  • 7
Engineering Klebsiella oxytoca for efficient 2, 3-butanediol production through insertional inactivation of acetaldehyde dehydrogenase gene
Ethanol was a major byproduct of 2,3-butanediol (2,3-BD) fermentation by Klebsiella oxytoca ME-UD-3. In order to achieve a high efficiency of 2,3-BD production, K. oxytoca mutants deficient in… Expand
  • 109
  • 5
Enhanced 2,3-butanediol production by altering the mixed acid fermentation pathway in Klebsiella oxytoca
Klebsiella oxytoca mutants were isolated from the wild type strain ME-303 after mutagenesis with UV coupled with diethyl sulfate and the following modified proton suicide method. By analyzing the… Expand
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Shift-splitting preconditioners for saddle point problems
  • Y. Cao, J. Du, Q. Niu
  • Mathematics, Computer Science
  • J. Comput. Appl. Math.
  • 1 December 2014
TLDR
In this paper, we first present a shift-splitting preconditioner for saddle point problems. Expand
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Persistent hepatitis C virus infections and hepatopathological manifestations in immune-competent humanized mice
The majority of hepatitis C virus (HCV) infection develops chronic infection, which causes steatosis, cirrhosis and hepatocellular carcinoma. However, understanding HCV chronicity and pathogenesis is… Expand
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Improved Energy Storage Density in Barium Strontium Titanate by Addition of BaO-SiO2-B2O3 Glass
The energy storage density of a Ba0.4Sr0.6TiO3 ceramic with the addition of 5–20 vol% glass was investigated. The results show that the improvement of the energy density in glass-added Ba0.4Sr0.6TiO3… Expand
  • 184
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Zn-Cu-In-Se Quantum Dot Solar Cells with a Certified Power Conversion Efficiency of 11.6%.
The enhancement of power conversion efficiency (PCE) and the development of toxic Cd-, Pb-free quantum dots (QDs) are critical for the prosperity of QD-based solar cells. It is known that the… Expand
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Ultrathin porous NiCo2O4 nanosheet arrays on flexible carbon fabric for high-performance supercapacitors.
NiCo2O4 with higher specific capacitance is an excellent pseudocapacitive material. However, the bulk NiCo2O4 material prevents the achievement of high energy desity and great rate performance due to… Expand
  • 188
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High-performance graphene devices on SiO₂/Si substrate modified by highly ordered self-assembled monolayers.
Graphene fi eld-effect transistors (GFETs) are considered promising devices as a result of graphene’s notably high mobility, fl exibility, and ultrathin nature. [ 1 , 2 ] Indeed, high mobility up to… Expand
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