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A Regression Approach to Speech Enhancement Based on Deep Neural Networks
- Yanchen Xu, J. Du, Li-Rong Dai, Chin-Hui Lee
- Computer Science
- IEEE/ACM Transactions on Audio, Speech, and…
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
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
Engineering Klebsiella oxytoca for efficient 2, 3-butanediol production through insertional inactivation of acetaldehyde dehydrogenase gene
- Xiao-Jun Ji, H. Huang, +4 authors S. Li
- Biology, Medicine
- Applied Microbiology and Biotechnology
- 1 February 2010
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
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
Shift-splitting preconditioners for saddle point problems
In this paper, we first present a shift-splitting preconditioner for saddle point problems. Expand
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
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
Zn-Cu-In-Se Quantum Dot Solar Cells with a Certified Power Conversion Efficiency of 11.6%.
- J. Du, Zhonglin Du, +8 authors Li-Jun Wan
- Chemistry, Medicine
- Journal of the American Chemical Society
- 22 March 2016
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
Ultrathin porous NiCo2O4 nanosheet arrays on flexible carbon fabric for high-performance supercapacitors.
- J. Du, G. Zhou, +5 authors Taihong Wang
- Materials Science, Medicine
- ACS applied materials & interfaces
- 12 July 2013
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
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