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6 results on '"Cui, Yilin"'

4. Effects of AlN Coating Layer on High Temperature Characteristics of Langasite SAW Sensors

Author

Dongdong Gong, Bin Peng, Zhengbing Yang, Wanli Zhang, Cui Yilin, Lin Shu, and Xingzhao Liu

Subjects
Electromechanical coupling coefficient, Materials science, engineering.material, lcsh:Chemical technology, 01 natural sciences, Biochemistry, Article, Analytical Chemistry, AlN coating layer, high temperature, Coating, 0103 physical sciences, Electronic engineering, lcsh:TP1-1185, Electrical and Electronic Engineering, Composite material, Thin film, 010301 acoustics, Instrumentation, 010401 analytical chemistry, Surface acoustic wave, Sputter deposition, temperature coefficient of frequency, Layer thickness, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, langasite, engineering, Layer (electronics)
Abstract

High temperature characteristics of langasite surface acoustic wave (SAW) devices coated with an AlN thin film have been investigated in this work. The AlN films were deposited on the prepared SAW devices by mid-frequency magnetron sputtering. The SAW devices coated with AlN films were measured from room temperature to 600 °C. The results show that the SAW devices can work up to 600 °C. The AlN coating layer can protect and improve the performance of the SAW devices at high temperature. The SAW velocity increases with increasing AlN coating layer thickness. The temperature coefficients of frequency (TCF) of the prepared SAW devices decrease with increasing thickness of AlN coating layers, while the electromechanical coupling coefficient (K2) of the SAW devices increases with increasing AlN film thickness. The K2 of the SAW devices increases by about 20% from room temperature to 600 °C. The results suggest that AlN coating layer can not only protect the SAW devices from environmental contamination, but also improve the K2 of the SAW devices.

Published
2016

6. Genome-Wide Identification and Characterization of the GASA Gene Family in Medicago truncatula , and Expression Patterns under Abiotic Stress and Hormone Treatments.

Author

Gao C, Li Z, Zhang H, Li C, Sun H, Li S, Ma N, Qi X, Cui Y, Yang P, and Hu T

Abstract

Medicago truncatula is a key model plant for studying legume plants, particularly alfalfa ( Medicago sativa ), due to its well-defined genetic background. Plant-specific GASA ( Gibberellic Acid Stimulated Arabidopsis ) genes play various roles in plant growth and development, abiotic stress, and hormone responses. However, limited information is available on GASA research in Medicago . In this study, 26 MtGASAs were identified and analyzed for its structure, evolution, and expressions. Sequence alignments and phylogeny revealed that 26 MtGASAs containing conserved GASA domains were classified into three clades. The chromosomal locations and gene synteny revealed segmental and tandem repetition evolution. Analysis of cis -regulatory elements indicates that family members likely influence various hormone signaling pathways and stress-related mechanisms. Moreover, the RNA-seq and qRT-PCR analyses revealed that 26 MtGASAs were extensively involved in abiotic stresses and hormone responses. Notably, seven MtGASA genes ( MtGASA1 , 10 , 12 , 17 , 23 , 25 and 26 ) were all dramatically activated by NaCl and Mannitol treatments, and four MtGASAs ( MtGASA7 , 10 , 23 and 24 ) were significant activated by GA 3 , PBZ, ABA, and MeJA treatments. Collectively, this study is the first to identify and describe GASA genes in Medicago on a genome-wide scale. The results establish a basis for functional characterization, showing that these proteins are essential in responding to various abiotic stresses and hormonal signals.

Published
2024
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