In music teaching in high schools, teachers should not only impart corresponding music knowledge ... more In music teaching in high schools, teachers should not only impart corresponding music knowledge to students but also focus on cultivating students’ comprehensive quality and quality. In the process of music teaching in universities, we should focus on students’ psychological adjustment and emotional health care. In order to quantify the application effect of big data technology in music teaching reform, this paper takes piano teaching in universities as an example to conduct research and mainly analyzes the physiological and psychological prediction effects involved in the teaching process. This paper introduces three typical big data technologies to predict and analyze the data involved in the existing piano teaching in universities. The analysis results show that the prediction effect based on the fuzzy neural inference system is the best. In addition, the three-dimensional display of the prediction data shows that the prediction effect obtained by big data technology shows good ...
As elucidated by prior research, children with hearing loss have impaired vocal emotion recogniti... more As elucidated by prior research, children with hearing loss have impaired vocal emotion recognition compared with their normal-hearing peers. Cochlear implants (CIs) have achieved significant success in facilitating hearing and speech abilities for people with severe-to-profound sensorineural hearing loss. However, due to the current limitations in neuroimaging tools, existing research has been unable to detail the neural processing for perception and the recognition of vocal emotions during early stage CI use in infant and toddler CI users (ITCI). In the present study, functional near-infrared spectroscopy (fNIRS) imaging was employed during preoperative and postoperative tests to describe the early neural processing of perception in prelingual deaf ITCIs and their recognition of four vocal emotions (fear, anger, happiness, and neutral). The results revealed that the cortical response elicited by vocal emotional stimulation on the left pre-motor and supplementary motor area (pre-SM...
Analysis on Nonlinear Characters of Built-in Sensor in Smart Device under the Condition of Voice Actuating
2019 Cybersecurity and Cyberforensics Conference (CCC)
The built-in sensor in a smart device such as accelerometer, gyroscope will produce an obvious no... more The built-in sensor in a smart device such as accelerometer, gyroscope will produce an obvious nonlinear output when it receives voice signal. In this paper, based on the chaotic theory, the nonlinearity of smartphone built-in accelerometer is revealed by phase space reconstructing after we calculate several nonlinearity characters such as best delay time, embedding dimension and the attractor of accelerometer system under the condition of voice commands inputting. The result of theoretical calculation and experiments show that this specific nonlinearity could lay a foundation for further signal extraction and analysis.
A Dual-band antenna for 5G millimeter wave frequency band
2020 IEEE 9th Joint International Information Technology and Artificial Intelligence Conference (ITAIC)
A Dual-band monopole antenna for 5G millimeter wave test frequency band is proposed. The Dual-ban... more A Dual-band monopole antenna for 5G millimeter wave test frequency band is proposed. The Dual-band monopole antenna is proposed by optimizing the resonant structure and return loss of the circular ring monopole antenna. The second resonance frequency of the antenna moves to the low frequency segment by extending the feeder to the inner part of the ring as a resonant branch. The antenna is fed by 50 $\Omega$ microstrip line and the antenna feed is optimized by adding a rectangular slot on the ground to increase the antenna impedance bandwidth. Simulation results show that the proposed antenna satisfies the -10 dB return loss bandwidth from 19.9GHz to 28.2GHz, and 36.9GHz to 42.89GHz. In the band of 19.9GHz to 28.2GHz, the antenna gain is greater than 3.44 dBi, and in the band of 36.9GHz to 42.89GHz, the antenna gain is greater than 2.61 dBi.
endothelial cell (ec) dysfunction is one of the initiating factors of atherosclerosis. ec dysfunc... more endothelial cell (ec) dysfunction is one of the initiating factors of atherosclerosis. ec dysfunction is primarily caused by oxidative damage and inflammation. As a classic non-specific antioxidant and anti-inflammatory drug, curcumin has been widely used in studies of lipid metabolism disorders. However, whether curcumin is able to alleviate H 2 o 2-induced ec damage and its related mechanisms has remained to be elucidated. The present study confirmed the protective effects of curcumin on human umbilical vein endothelial cells (HuVecs). a HuVec injury model was established using H 2 o 2 and the optimal concentrations and time of curcumin to achieve therapeutic effects were explored. curcumin was observed to inhibit H 2 o 2-induced pyroptosis by inhibiting the activation of nod-, lrr-and pyrin domain-containing protein 3. in addition, curcumin improved HuVec function by restoring αvβ3 and reducing endothelin-1 expression. in conclusion, the results of the present study revealed the mechanism through which curcumin inhibits pyroptosis and indicated that curcumin may have a potential utility in treating diseases of ec dysfunction.
The results of recent animal studies have suggested that cochlear synaptopathy may be an importan... more The results of recent animal studies have suggested that cochlear synaptopathy may be an important factor involved in presbycusis. Therefore, here, we aimed to examine whether cochlear synaptopathy frequently exists in patients with presbycusis and to describe the effect of cochlear synaptopathy on speech recognition in noise. Based on the medical history and an audiological examination, 94 elderly patients with bilateral, symmetrical, sensorineural hearing loss were diagnosed as presbycusis. An electrocochleogram, auditory brainstem responses, auditory cortical evoked potentials, and speech audiometry were recorded to access the function of the auditory pathway. First, 65 ears with hearing levels of 41-50 dB HL were grouped based on the summating potential/action potential (SP/AP) ratio, and the amplitudes of AP and SP were compared between the two resulting groups. Second, 188 ears were divided into two groups: the normal SP/AP and abnormal SP/AP groups. The speech recognition abi...
Broadband and wavelength selective photodetection are of great importance for photodetectors in p... more Broadband and wavelength selective photodetection are of great importance for photodetectors in practical applications, while these two features are generally in conflict with each other in conventional semiconductor heterojunctions. In the current work, CH3NH3PbBr3/PbZr0.52Ti0.48O3 ferroelectric heterojunction photodetectors have been demonstrated to obtain a self-powered bidirectional photoresponse, which realized a broadband and wavelength selective photodetection in the ultraviolet (UV)/visible wavelength region. By a combination of bulk photovoltaic effects of ferroelectric PbZr0.52Ti0.48O3 and built-in electric field at the CH3NH3PbBr3/PbZr0.52Ti0.48O3 heterojunction interface, the photodetectors exhibited a positive sensitivity in the UV spectral range and a negative sensitivity in the visible spectral range. Specifically, the sensitivities were +0.22 mA/W at 340 nm and −0.032 mA/W at 530 nm, both at the bias voltage of 0 V. Notably, the photoresponse polarity in the UV spect...
Additional file 1: Table S1. of Low-level prenatal lead exposure and infant sensory function
GLM results for associations between prenatal lead and infant ABR C-P ratio for the 8 ms and 16 m... more GLM results for associations between prenatal lead and infant ABR C-P ratio for the 8 ms and 16 ms masking conditions. Table S2: GLM results for associations between prenatal lead and infant ABR interpeak intervals for the 32 ms masking condition. (DOCX 18 kb)
Additional file 7: of Development of novel InDel markers and genetic diversity in Chenopodium quinoa through whole-genome re-sequencing
Fig. S2. Population structure of the 129 quinoa accessions shown via STRUCTURE (KÂ =Â 3). Each qu... more Fig. S2. Population structure of the 129 quinoa accessions shown via STRUCTURE (KÂ =Â 3). Each quinoa accession is represented by a vertical bar. Numbers on the y-axis indicate the membership coefficient, while the numbers on the x-axis indicate the serial number of each accession. The three groups are marked separately by red, green and blue colors. (PDF 104Â kb)
Compact Electrically Small Wideband Coplanar Waveguide (CPW) Fed Zeroth Order Resonating Metamaterial Antenna
2020 4th Australian Microwave Symposium (AMS), 2020
This work explains the design and analysis of a triple-band electrically small coplanar waveguide... more This work explains the design and analysis of a triple-band electrically small coplanar waveguide-fed zeroth-order resonating (ZOR) antenna. The presented antenna is composed of 2-cell of the composite right/left handed (CRLH) artificial structure, with an overall electrical size including the ground plane of 0.021λ0×0.063λ0×0.004λ0 at 1.61GHz (ZOR mode) and physical dimension of 4 × 11.7 × 0.8 mm3. The simulation results show good impedance bandwidth of 78%, 44%, and 21% for the three bands centered at 1.61, 3.38, and 6.8GHz, with the peak gain of 3.28, 3.12 and 4.14dBi. The antenna provides a higher level of compactness, wider bandwidth and good efficiency. Therefore, the proposed antenna is suitable for use in GPS L1 band (1.565-1.585GHz), WiMAX 3.5GHz (3.4-3.8GHz), and C-band (4-8GHz) wireless application systems.
Research of Conical Conformal Array Antenna Based on Hybrid Algorithm
2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2018
The synthesis of the array antenna radiation pattern is an important part of the array analysis p... more The synthesis of the array antenna radiation pattern is an important part of the array analysis process. In this paper, a hybrid algorithm is used to optimize the radiation pattern of the 4×4 cone con-formal array to realize beam scanning. This algorithm introduces the selection mechanism of swarm intelligence optimization algorithm, and combines it with the optimal selection mechanism to improve the convergence speed of the algorithm. Furthermore, the union optimization operation of the excitation phase and the amplitude is realized by adopting the normal factor and multi-point cross-over of two-dimensional window. Compared with the classical genetic algorithm, the simulation results show that the algorithm can well balance the relationship between the parameters when multiple parameters are optimized simultaneously, and realize radiation pattern synthesis of the fixed pointing angle.
Discovery and characterization of genes controlling nitrogen utilization in maize
Maize (Zea mays, L.) yield has a well-documented response to supplemental nitrogen (N). As a resu... more Maize (Zea mays, L.) yield has a well-documented response to supplemental nitrogen (N). As a result of this response, supplemental N is applied to nearly all maize grown in the U.S. and other industrialized nations, and the use of N fertilizer in developing countries is on the rise. While sufficient nitrogen fertilization contributes to increased maize yield and better nutritional quality, excessive N inflates the production cost, increases energy consumption, and poses significant risks to the environment and human health. Therefore, improving the nitrogen utilization efficiency (NUtE) of maize hybrids is instrumental to reducing the nitrogen footprint of future agriculture while increasing crop productivity. In order to dissect the genetic architecture of maize N utilization, we conducted a genetic mapping study using a hybrid population created by crossing the intermated B73 x Mo17 recombinant inbred lines (IBMRIL) to the Illinois High Protein 1 (IHP1) inbred line. Agronomic N utilization, component physiological traits, and gene expression variation were used as traits for quantitative trait loci (QTL) analysis. Subsequent fine mapping using dense SNPs generated with genotyping-by-sequencing (GBS) greatly narrowed down primary QTL intervals and resulted in a small number of positional candidates for each locus. Two leading candidate genes were characterized further, ZmHVA22, a regulator of autophagy and nutrient remobilization, and L-asparaginase that mediates nutrient sensing and rate of N flux The functional effects of ZmHVA22 and L-asparaginase on N utilization were investigated in both inbred and hybrid genotypes with different genetic variants for these two genes. Field trial results demonstrated improved N utilization for hybrids with higher expression levels of either ZmHVA22 or L-asparaginase. When examined in populations representative of historical diversity in US Corn Belt maize, patterns of allelic diversity indicated strong divergent selection for ZmHVA22 and approximate 400 other maize genes enriched for regulatory functions and the control of N utilization. This pattern supports the view that heterozygosity at these loci is favored for performance of current elite maize hybrids, perhaps as a compromise breeding solution to developmental, physiological and metabolic tradeoffs such as the remobilization of N from vegetative source to reproductive sink organs. Reliable production of preferred heterozygous genotypes is thus operationally achieved by separation of inbred lines into heterotic groups diversified in part by alternative alleles governing regulatory tradeoffs, and likely represents a current constraint to future genetic improvements in maize. Our study demonstrated the concept and effectiveness of mapping complex field traits using a hybrid mapping population, as well as the efficacy of fine mapping using genetic marker saturation with next-generation-sequencing technology. Candidates identified from our study provided insights on pathways and mechanisms controlling N utilization in maize and possibly other crop species. Our results offer useful resources to marker assisted breeding and lay the foundation for modifying NUtE genes through genetic engineering
Prenatal Lead Exposure and Infant Sensory Function
ISEE Conference Abstracts, 2014
Background- Lead (Pb), a well-known neurotoxicant, is associated with poorer cognitive, behaviora... more Background- Lead (Pb), a well-known neurotoxicant, is associated with poorer cognitive, behavioral, and motor outcomes, but little is known about effects on sensory function in humans. Aim- To asse...
[Analysis of the clinical audiological characteristics in 92 Chinese Alport syndrome cases]
Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery, 2014
OBJECTIVE To analyze the clinical audiological characteristics in Chinese Alport syndrome, and in... more OBJECTIVE To analyze the clinical audiological characteristics in Chinese Alport syndrome, and investigate the relationship between the genotypes of Alport syndrome and hearing phenotype. METHODS The clinical hearing data of 92 cases diagnosed as Alport syndrome from 2008 August to 2013 August were reviewed and analyzed. All coding exons of COL4A3 and COL4A5 genes were PCR-amplified and sequenced from genomic DNA, or mRNA of COL4A5 gene was RT-PCR-amplified and sequenced from skin fibroblast in 17 cases. RESULTS Eighty-seven out of 92 cases were found with X-linked dominant inheritance (XLAS); 5 cases with autosomal recessive (ARAS); 44 cases had normal hearing, but 14 young cases had abnormal OAE; 48 cases (52.2%, 35 male, 13 female) had sensorineural hearing loss. A total of 44 cases with XLAS had hearing loss (49.4%), wherein the incidence of hearing impairment was 55.0% in male XLAS, and 37.0% in female XLAS. Mild and moderate hearing loss were found in XLAS. Audiometric curves ...
Uploads
Papers by YUHE LIU