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| 1 | Study on crustal, lithospheric and asthenospheric thickness beneath the Qinghai-Tibet Plateau and its adjacent areas显示文摘Based on the results of pure dispersions of Rayleigh wave tomography in the Qinghai-Tibet Plateau and its adjacent areas, taking S wave velocities from previous linear inversion as the initial model, us-ing the simulated annealing algorithm, a nonlinear simultaneous inversion has been carried out for S wave velocity and thickness of different layers, including the crust, the lithosphere and the astheno-sphere. The results indicate: The crustal thickness shows strong correlation with geology structures sketched by the sutures and major faults. The crust is very thick in the Qinghai-Tibet Plateau, varying from 60 km to 80 km. The lithospheric thickness in the Qinghai-Tibet Plateau is thinner (130―160 km) than its adjacent areas. And two blocks can be recognized, divided by an NNE strike boundary running between 90°E―92°E inside the plateau. Its asthenosphere is relatively thick, varies from 150 km to 230 km, and the thickest area is located in the western Qiangtang. India has a thinner crust (32―38 km), a thicker lithosphere of 190 km and a rather thin asthenosphere of only 60 km. Sichuan and Tarim basins have the crust thickness less than 50 km. Their lithospheres are thicker than the Qinghai-Tibet Plateau, and their asthenospheres are thinner. A discussion has been made on the character and formation mechanism of the typical crust-mantle transition zone in the western Qiangtang block. | ZHANG XueMei SUN RuoMei TENG JiWen | 2007 | Chinese Science Bulletin2007，52，6： | 9 |
| 2 | The correlation between nitrogen species in coke and NO_x formation during regeneration显示文摘Nitrogen oxides(NO x)emission during the regeneration of coked fluid catalytic cracking(FCC)catalysts is an environmental issue.In order to identify the correlations between nitrogen species in coke and different nitrogencontaining products in tail gas,three coked catalysts with multilayer structural coke molecules were prepared in a fixed bed with model compounds(o-xylene and quinoline)at first.A series of characterization methods were used to analyze coke,including elemental analysis,FT-IR,XPS,and TG–MS.XPS characterization indicates all coked catalysts present two types of nitrogen species and the type with a higher binding energy is related with the inner part nitrogen atoms interacting with acid sites.Due to the stronger adsorption ability on acid sites for basic nitrogen compounds,the multilayer structural coke has unbalanced distribution of carbon and nitrogen atoms between the inner part and the outer edge,which strongly affects gas product formation.At the early stage of regeneration,oxidation starts from the outer edge and the product NO can be reduced to N_2 in high CO concentration.At the later stage,the inner part rich in nitrogen begins to be exposed to O_2.At this period,the formation of CO decreases due to lack of carbon atoms,which is not bene ficial to the reduction of NO.Therefore,nitrogen species in the inner part of multilayer structural coke contributes more to NO X formation.Based on the multilayer structure model of coke molecule and its oxidation behavior,a possible strategy to control NO X emission was discussed merely from concept. | Teng Li Chaohe Yang Xiaobo Chen Libo Yao Wei Liang Xuemei Ding | 2016 | Chinese Journal of Chemical Engineering2016，24，5： | 5 |
| 3 | Considering fault removal efficiency in software reliability assement显示文摘 | ZHANG Xuemei TENG Xiaolin PHAM H | 2003 | IEEE Transaction on system man and cyberneties-part a:systems and human January 20032003，33，1： | 1 |
| 4 | Considering Fault Removal Efficiency in Software Reliability Assessment 显示文摘 | Xuemei Zhang Xiaolin Teng Hoang Pharn | 2003 | IEEE Transactions on Systems2003，33，1： | 1 |
| 5 | 显示文摘 | Cao Bingqiang Teng Xuemei Heo S H | 2007 | J Phvs Chem C2007，111，： | 1 |
| 6 | Considering Fault Removal Efficiency in Software Reliability Assessment 显示文摘 | Xuemei Zhang Xiaolin Teng Hoang Pham | 2003 | IEEE Trans on Systems Man and Cybernetics-Part A: Systems and Humans2003，33，1： | 1 |
| 7 | TAPP1 inhibits the differentiation of oligodendrocyte precursor cells via suppressing the Mek/Erk pathway显示文摘Oligodendrocytes(OLs) are glial cells that form myelin sheaths around axons in the central nervous system(CNS).Loss of the myelin sheath in demyelinating and neurodegenerative diseases can lead to severe impairment of movement.Understanding the extracellular signals and intracellular factors that regulate OL differentiation and myelination during development can help to develop novel strategies for enhancing myelin repair in neurological disorders.Here,we report that TAPP1 was selectively expressed in differentiating OL precursor cells(OPCs).TAPP1 knockdown promoted OL differentiation and myelin gene expression in culture.Conversely,over-expression of TAPP1 in immature OPCs suppressed their differentiation.Moreover,TAPP1 inhibition in OPCs altered the expression of Erk1/2 but not AKT.Taken together,our results identify TAPP1 as an important negative regulator of OPC differentiation through the Mek/Erk signaling pathway. | Yidan Chen Ruyi Mei Peng Teng Aifen Yang Xuemei Hu Zunyi Zhang Mengsheng Qiu Xiaofeng Zhao | 2015 | Neuroscience Bulletin2015，31，5： | 1 |
| 8 | Considering Fault Removal Efficiency in Software Reliability Assessment 显示文摘 | Zhang Xuemei Teng Xiaolin Pham H | 2003 | IEEE Transactions on System Man and Cybernetics2003，33，1： | 1 |
| 9 | Considering Fault Removal Efficiency in Software Reliability Assessment显示文摘 | Xuemei Zhang Xiaolin Teng Hoang Pham | 2003 | IEEE Transactions on Systems Man and Cybernetics-Part A:Systems and Humans2003，33，1： | 1 |
| 10 | Considering fault removal efficiency in software reliability assessment显示文摘 | Zhang Xuemei Teng Xiaolin Pham Hoang | 2003 | IEEE Trans2003，33，1： | 1 |
| 11 | Circular RNA hsa_circ_0007444 inhibits ovarian cancer progression through miR-23a-3p/DICER1 axis显示文摘Ovarian cancer is the second leading cause of death in women with gynecological malignancy in China.Circular RNAs are a class of noncoding regulatory RNAs reported to be involved in cancer development and progression.Previous studies,including our own,have indicated that hsa_circ_0007444 is downregulated in ovarian cancer tissues.This study aims to elucidate the function and mechanism of hsa_circ_0007444 in ovarian cancer progression.The expression of hsa_circ_0007444 is determined by quantitative real-time PCR(qRT-PCR).Cell proliferation,invasion,migration and apoptosis are examined by cell counting-kit 8(CCK-8),transwell and flow cytometry assays.Tumor growth and metastasis are assessed in vivo using Balb/c nude mouse xenograft model and tail vein injection model.And the mechanism of action of hsa_circ_0007444 is analysed by RNA-binding protein immunoprecipitation(RIP),luciferase reporter and rescue assays.hsa_circ_0007444 is downregulated in ovarian cancer tissues and cell lines compared with that in normal ovarian tissues and normal epithelial cell line.Gain-and loss-of-function results indicate that hsa_circ_0007444 inhibits cell proliferation,invasion,migration and increases cell apoptosis of ovarian cancer cells in vitro,and inhibits tumor growth and lung metastasis in vivo.Mechanistically,hsa_circ_0007444 can interact with AGO2 and sponge miR-23a-3p,thereby upregulating DICER1 expression,which is an important tumor suppressor in ovarian cancer.And miR-23a-3p mimics can rescue the inhibitory effect of hsa_circ_0007444 on ovarian cancer cell proliferation,invasion and migration.Therefore,hsa_circ_0007444 can inhibit ovarian cancer progression through the hsa_circ_0007444/miR-23a-3p/DICER1 axis. | Min Zhang Yu Sun Hanzi Xu Yaqian Shi Rong Shen Fang Teng Juan Xu Xuemei Jia | 2023 | Acta Biochimica et Biophysica Sinica2023，55，4： | 0 |
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