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112 results on '"Jiancheng Huang"'

101. Adaptive Close-Talking Beamforming with a Novel Differential Array

Author

Jiancheng Huang, Ke Peng, and Yaxin Zhang

Subjects
Beamforming, Adaptive filter, Signal-to-noise ratio, Anechoic chamber, Microphone, Computer science, business.industry, Speech recognition, Electronic engineering, business, Digital signal processing, Active noise control
Abstract

Aiming at the application of arrays for close-talking, a novel type of differential microphone arrays is proposed, and a nearfield GSC (generalized sidelobe canceller) with a novel differential array is developed. Unlike the traditional farfield GSC, the nearfield GSC algorithm adopts different signals as inputs in different modules, resulting in improvement in adaptive noise cancellation. Simulations with real data acquired by a differential array in an anechoic chamber show that the proposed beamformer effectively improves the close-talking capability of the array with the SNR increase of over 12 dB. Furthermore, a DSP-based real-time beamforming system with a small differential array embedded into a handset housing exhibits the noise-cancellation capability of 10-15 dB.

Published
2007
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103. Successful Outcome of a Case of Acute Myeloid Leukemia with t(8;21)/AML-ETO Following Langerhans Cell Histiocytosis.

Author

Guangqiang Meng, Jingshi Wang, Jiancheng Huang, Yini Wang, Na Wei, and Zhao Wang

Subjects
ANTINEOPLASTIC agents, ACUTE myeloid leukemia diagnosis, CYCLOPHOSPHAMIDE, ACYCLOVIR, BLOOD testing, CANCER chemotherapy, CYTOGENETICS, DIZZINESS, GENES, GENETIC polymorphisms, GRAFT versus host disease, HEMATOPOIETIC stem cell transplantation, ACUTE myeloid leukemia, TREATMENT effectiveness, BUSULFAN, LANGERHANS-cell histiocytosis, ADOLESCENCE
Published
2019
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107. Optical coherence tomography (OCT) abnormalities in rhodopsin mutant transgenic swine with retinal degeneration

Author

Samuel G. Jacobson, Jiancheng Huang, Robert M. Petters, Fulton Wong, Yijun Huang, Tomas S. Aleman, Ann H. Milam, Artur V. Cideciyan, Nasreen A. Syed, and Eyal Banin

Subjects
Retinal degeneration, Rhodopsin, medicine.diagnostic_test, Swine, Transgene, Mutant, Retinal Degeneration, Biology, medicine.disease, Molecular biology, Sensory Systems, Animals, Genetically Modified, Cellular and Molecular Neuroscience, Ophthalmology, Optical coherence tomography, Mutation (genetic algorithm), Mutation, medicine, biology.protein, Animals, Tomography
Published
2000

111. Effect of boundary conditions on the energy absorption of composite tubes

Author

Jiancheng Huang and Xinwei Wang

Subjects
Psychiatry and Mental health, Neuropsychology and Physiological Psychology, Materials science, Energy absorption, Composite number, Boundary value problem, Composite material
Abstract

Composite tubes with different cross-sectional shapes, including quarter circle, half circle and three-quarter circle, are axially crushed to study the boundary effects on the energy absorption of cylindrical shells and develop a semi-empirical analysis method for the crashworthy design of composite structures. It is observed experimentally that all specimens crush from the chamfered end and exhibit stable progressive crushing with similar macroscopic failure modes. Experimental results indicate that the load-displacement curves of all specimens are similar to those of full-circle tubes. And the quarter-circle tubes show the lowest energy absorption capability, while the half-circle tubes and three-quarter-circle tubes show almost the same energy absorption capability. It is found that quarter-circle thermoset tubes without and with one free edge provide 19% and 13% higher energy absorption capability than the quarter-circle thermoset tubes with two free edges; while quarter-circle thermoplastic tubes without and with one free edge provide 6% and 2% higher energy absorption capability than the quarter-circle thermoplastic tubes with two free edges, respectively. It is also found that the semi-empirical analysis method based on crush data and boundary effects of the quarter-circle tubes can accurately predict the energy absorption capability of half-circle or full-circle tubes.

112. Proline mediates metabolic communication between retinal pigment epithelial cells and the retina.

Author

Yam, Michelle, Engel, Abbi L., Yekai Wang, Siyan Zhu, Hauer, Allison, Rui Zhang, Lohner, Daniel, Jiancheng Huang, Dinterman, Marlee, Chen Zhao, Chao, Jennifer R., and Jianhai Du

Subjects
*RHODOPSIN, *CHROMATOPHORES, *PROLINE, *EPITHELIAL cells, *HUMAN cell culture, *RETINA
Abstract

The retinal pigment epithelium (RPE) is a monolayer of pigmented cells between the choroid and the retina. RPE dysfunction underlies many retinal degenerative diseases, including age-related macular degeneration, the leading cause of age-related blindness. To perform its various functions in nutrient transport, phagocytosis of the outer segment, and cytokine secretion, the RPE relies on an active energy metabolism. We previously reported that human RPE cells prefer proline as a nutrient and transport proline-derived metabolites to the apical, or retinal, side. In this study, we investigated how RPE utilizes proline in vivo and why proline is a preferred substrate. By using [13C]proline labeling both ex vivo and in vivo, we found that the retina rarely uses proline directly, whereas the RPE utilizes it at a high rate, exporting proline-derived mitochondrial intermediates for use by the retina. We observed that in primary human RPE cell culture, proline is the only amino acid whose uptake increases with cellular maturity. In human RPE, proline was sufficient to stimulate de novo serine synthesis, increase reductive carboxylation, and protect against oxidative damage. Blocking proline catabolism in RPE impaired glucose metabolism and GSH production. Notably, in an acute model of RPE-induced retinal degeneration, dietary proline improved visual function. In conclusion, proline is an important nutrient that supports RPE metabolism and the metabolic demand of the retina. [ABSTRACT FROM AUTHOR]

Published
2019
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