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Your search keyword '"Xu, Yan ‐ li"' showing total 11 results
Start Over Author "Xu, Yan ‐ li" Journal advanced materials research
11 results on '"Xu, Yan ‐ li"'

1. The Influence of Temperature on the Content of Liver Glycogen and Muscle Glycogen in Sparrow

Author

Xing Jun Xu, Shu Li Shao, Wei Yu Wang, Jin Song Liu, Wei Wei Zhang, Zi Qiang Wang, Tian Fei Yu, Xu Yan Li, Jian Wei Lv, Huai Yong Li, and Tie Li

Subjects
chemistry.chemical_compound, Sparrow, Animal science, Two temperature, biology, Biochemistry, Glycogen, chemistry, biology.animal, General Engineering, Acclimatization
Abstract

The sparrows for experimental materials were divided into 5 °C acclimation group, 30 °C acclimation group and control group. The content of liver glycogen and muscle glycogen were measured with sulfuric acid-anthrone colorimetric method after two weeks of acclimation. The results show that: When the temperature is 5 °C, the glycogen content was very significantly lower than the glycogen content of control group (p0.05); The change in glycogen content was extremely significant between the two temperature (p

Published
2012

2. The Study of Apoptosis Induced by Allicin in HT-9/HL-60 and its Transfection Cell

Author

Xu Yan Li, Dong Ze Yun, Yu Zhang, Shu Li Shao, and Wei Wei Zhang

Subjects
Allicin, medicine.diagnostic_test, General Engineering, Transfection, Cell cycle, Molecular biology, Flow cytometry, Small hairpin RNA, chemistry.chemical_compound, chemistry, Apoptosis, medicine, MTT assay, Viability assay
Abstract

To detect the effect of reverse in transfected cells by allicin treated. Two different short hairpin RNAs were designed and constructed in a pSilencer 3.1-H1 neo plasmid. The shRNA recombinant plasmids were transfected into HT9 leukemia cells. Flow cytometry was used to select the stably transfected sells. The cell viability of the cells was assessed using MTT assay, flow cytometry was used to monitor cell cycle and apoptosis. Inverted fluorescence microscope and trasmission electron microscope were used to examine the cytomorphology and ultrastructural changes of cells. The results indicated that compared with HT9 cells, HT9-3.1-2 cells, HT9 cells transfected with shRNA recombinant plasmids, had lower cell viability and higher levels of apoptosis after treated with allicin. The characteristic features of apoptosis were more significantly. The results indicate that allicin can induce cell apoptosis of HT9 and HT9-3.1-2 cells, and after stable transfection with the shRNA vectors, the multidrug resistance in HT9 cells was partly reversed.

Published
2011

11. Microstructural Study of Nanostructured ZrO2 Based Thermal Barrier Coatings Fabricated by High Efficiency Supersonic Plasma Spraying

Author

Bai, Yu, Han, Zhi Hai, Li, Hong Qiang, Xu, Chao, Xu, Yan Li, Ding, Chun Hua, and Yang, Jian Feng

Abstract

In this paper, the microstructure of nanostructured zirconia (ZrO2) based coating fabricated by newly developed process, high efficiency supersonic atmospheric plasma spraying (SAPS), is studied. The velocity and surface temperature of in-flight particles during spraying were monitored by on-line system and the microstructure and phase composition of the as-sprayed coating was characterized with SEM, TEM and XRD. Meanwhile, the bonding strength between the top coating and bond coating was measured. The results showed the average in-flight velocity of YSZ particles in SAPS was about 430m/s, which was much higher than that of conventional atmospheric plasma spraying (APS). The as-sprayed coating was composed of well-adhered fine lamellar structures with thickness of 1-4μm. The desirable structure was attributed to higher impact velocity of in-flight particles during SAPS process, resulting in the improvement of flattening degree of molten particles. Meanwhile, the SAPS-YSZ coating exhibited a bimodal distribution with small grains (30-50nm) and large grains (60-110nm), the latter was the main microstructure of the coating. In addition, it was found that the monoclinic zirconia existing in the original powders transformed into tetragonal phase after plasma spraying and the bonding strength of as-sprayed coating was as high as 46±3MPa. The high efficiency supersonic plasma spray, which offers some unique advantages over the conventional plasma spraying process, is expected to be potentially used to deposit a wide variety of nanostructured coatings at lower cost.

Published
2011
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