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16篇 您的检索式:作者名="Li Songshan"
    题名 作者 年代 出处 被引量
1The existing time of Sihetun vertebrate in western Liao-ning,China——Evidence from U-Pb dating of zircon显示文摘In different opinions, the stratigraphic time of the feathered dinosaurs and early birds in Sihetun and its neighboring areas in Beipiao, western Liaoning is appointed to different epoches of eras, such as Late Jurassic, Early Cretaceous and Late Jurassic-Early Cretaceous. Even the recently dating data are still very different. This note first reported the U-Pb age of (125.2±0.9) Ma of zircon separated from tuff of Sihetun vertebrates horizon. The age reveals that Sihetun vertebrate belongs to Early Cretaceous. The method is more objective, because of the strong ability of disturbance resistance and high U-Pb blocking temperature of zircons.WANG Songshan WANG Yuanqing HU Huaguang LI Huimin 2001Chinese Science Bulletin2001,46,9:20
2mTOR pathway regulates the differentiation of peripheral blood Th2/Treg cell subsets in patients with pemphigus vulgaris显示文摘Pemphigus vulgaris(PV)is a chronic and potentially life-threatening autoimmune blistering disease.Aberrant mTOR pathway activity is involved in many autoimmune diseases.This study investigated the correlation of mTOR pathway(PI3K/AKT/mTOR/p70S6K)activity with the loss of balance in T helper 2/regulatory T(Th2/Treg)cells in the peripheral blood of PV patients.CD4^(+)T cells were isolated from 15 PV patients and 15 healthy controls(HCs),the ratios of Th2/CD4^(+)T cells and Treg/CD4^(+)T cells,the activity of the mTOR pathway(PI3K/AKT/mTOR/p70S6K),the transcription factors and cytokines of Th2 and Treg cells were detected.Primary CD4^(+)T cells from PV patients were cultured under Th2-or Treg-polarizing conditions with or without rapamycin in vitro.We found that PV patients showed significantly elevated serum IL-4 when compared with HCs,and serum IL-4 level was positively correlated with the titer of anti-Dsg1/3 antibody and disease severity,while the serum TGF-βlevel was negatively correlated with the titer of anti-Dsg3 antibody and disease severity.Meanwhile,PV patients showed increased Th2/CD4^(+)T cell ratio;decreased Treg/CD4^(+)T cell ratio;elevated mRNA of PI3K,AKT,mTOR and protein of PI3K(P85),AKT,p-AKT(Ser473),mTOR,p-mTOR(Ser2448),p-p70S6K(Thr389),GATA3;reduced protein of forkhead box protein 3.Rapamycin inhibited Th2 cell differentiation and promoted Treg cell differentiation in vitro.These data suggest a close association between mTOR pathway activation and the loss of balance in Th2/Treg cells in peripheral blood of PV patients.Inhibiting mTORC1 can help restore the Th2/Treg balance.Kuan Lai Wenjing Zhang Songshan Li Zhiwen Zhang Shuangde Xie Meinian Xu Changxing Li Kang Zeng 2021Acta Biochimica et Biophysica Sinica2021,53,4:4
3Collision of the North China and Yangtse Blocks and formation of coesite-bearing eclogites: Timing and processes显示文摘Li Shuguang Xiao Yilin Lion Deliang Chert Yizhi Ge Ningjie Zhang Zongqing Sun Shen-su Cong Bolin Zhang Ruyuan Hart S R Wang Songshan 1993Chem Geol1993,109,14:1
4Prototyping an open environment for sharing geographical analysis models on cloud computing platform显示文摘The sharing of geographical analysis models is of crucial importance for simulating geographic processes and phenomena in the current geographical information systems(e.g.Digital Earth),but there remain some issues that have not been completely resolved.The challenges include,eliminating model heterogeneity and searching for suitable infrastructures to support the open sharing and effective execution of models.Taking advantage of cloud computing,this article aims to address the above issues and develop an open environment for geographical analysis model sharing.On the basis of the analysis of the applicability of cloud computing,the architecture of the open environment is proposed.More importantly,key strategies designed for heterogeneous model description,model encapsulating as well as model deploying and transparent accessing in the cloud are discussed in detail to establish such an environment.Finally,the prototype environment is implemented,and experiments were conducted to verify the environment’s feasibility to support the sharing of geographical analysis models.Yongning Wen Min Chen Guonian Lu Hui Lin Li He Songshan Yue 2013International Journal of Digital Earth2013,6,4:1
5ExperimentalAnalysis of Pressure Distribution in a Twin ScrewCompressor Design显示文摘Cao Feng Gao Tieyu Li Songshan? 2011Experimental Thermal and Flu-id Science2011,35,1:1
6Purification and charactrization of a novel NGF from Chinese cobra venom显示文摘Li Xiaobiao Liao Songshan Shu Yuyan 1998Toxical Toxin Reviews1998,17,4:1
7Experimental analysis of pressure distribution in a twin screw compressor for muhiphase duties 显示文摘Cao Feng Gao Tieyu Li Songshan 2011Experimental Thermal and Fluid Science2011,,:1
8Effect of 1-MCP on quality and antioxidant capacity of in vitro digests from Sunrise'apples stored at different temperatures 显示文摘Songshan Qiu Changwei Lu Xihong Li 2009Food Research International2009,42,3:1
9microRNA-146b inhibits glioma cell migration and invasion by targeting MMPs显示文摘Hongping Xia Yanting Qi Samuel S. Ng Xiaona Chen Dan Li Shen Chen Ruiguang Ge Songshan Jiang Guo Li Yangchao Chen Ming-Liang He Hsiang-fu Kung Lihui Lai Marie C. Lin 2008Brain Research2008,,:1
10Effect of 1- MCP on quality and antioxidant capacity of in vitro digests from 'Sunrise' apples stored at different temperatures显示文摘Songshan Qiu Changwen Lu Xihong Li 2009Food Research International2009,42,:1
11Effect of 1-MCP on quality and antioxidant capacity of in vitro digests from ‘Sunrise’ apples stored at different temperatures显示文摘Songshan Qiu Changwen Lu Xihong Li Peter M.A. Toivonen 2009Food Research International2009,,3:1
12Experimental analysis of pressure distribution in a twin screw compressor for multiphase duties 显示文摘Cao Feng Gao Tieyu Li Songshan 2011Experimental Thermal and Fluid Science2011,35,:1
13Enhanced recovery of high-purity Fe powder from iron-rich electrolytic manganese residue by slurry electrolysis显示文摘Iron-rich electrolytic manganese residue(IREMR)is an industrial waste produced during the processing of electrolytic metal manganese,and it contains certain amounts of Fe and Mn resources and other heavy metals.In this study,the slurry electrolysis technique was used to recover high-purity Fe powder from IREMR.The effects of IREMR and H2SO4 mass ratio,current density,reaction temper-ature,and electrolytic time on the leaching and current efficiencies of Fe were studied.According to the results,high-purity Fe powder can be recovered from the cathode plate,and the slurry electrolyte can be recycled.The leaching efficiency,current efficiency,and purity of Fe reached 92.58%,80.65%,and 98.72wt%,respectively,at a 1:2.5 mass ratio of H2SO4 and IREMR,reaction temperature of 60℃,electric current density of 30 mA/cm^(2),and reaction time of 8 h.In addition,vibrating sample magnetometer(VSM)analysis showed that the coercivity of electrolytic iron powder was 54.5 A/m,which reached the advanced magnetic grade of electrical pure-iron powder(DT4A coercivity standard).The slurry electrolytic method provides fundamental support for the industrial application of Fe resource recovery in IRMER.Wenxing Cao Jiancheng Shu Jiaming Chen Zihan Li Songshan Zhou Shushu Liao Mengjun Chen Yong Yang 2024International Journal of Minerals,Metallurgy and Materials2024,31,3:0
14Effects of Different Water Treatment on Yield and Agronomic Traits of Wheat显示文摘In order to make clear the effects of water on yield and agronomic traits of wheat in Cangzhou,18 wheat cultivars from north part of Huanghuai Plain were collected for spring irrigation. The indoor and field surveys were used to analyze the effects of irrigation frequency on stem tiller situation,leaf area coefficient,yield and other traits of different wheat cultivars. The results indicated that the average yield of irrigation 1 increased by 68. 07 kg compared with that of irrigation 0,while the average yield of irrigation 2 increased by 60. 00 kg compared with that of irrigation 1. The survey of flag leaf area of wheat cultivars at the grain filling stage showed that the leaf area of irrigation 0 was the smallest( 18. 15 cm^2 on average),the leaf area of irrigation 1 was 20. 34 cm^2,and the leaf area of irrigation 2 was 24. 05 cm^2. With the increase in the irrigation times,the volume weight of wheat cultivars declined,the number of infertile spikelet dropped,and the plant height gradually increased. In conclusion,every decrease of one time of irrigation times,there will be loss of yield about 60. 00 kg.Weiwei WANG Liang YU Liya NIU Wei WANG Li LU Fengzhi WANG Songshan ZHAO 2018Asian Agricultural Research2018,10,3:0
15Selection and Breeding of Drought Resistant,Water-saving and High-yield Wheat Variety Cangmai 028显示文摘Cangmai 028 was selected and bred according to the climatic characteristic of the winter wheat in Heilonggang Basin taking 98(083)as the female parent and the Canghe 030 as the male parent by 'two-row parallel alternate selection' method.Cangmai 028 has characteristics of high resistance,water-saving,high and stable yield,and rich genetic background.This study elaborated selection and breeding background and methods,characteristics,quality,and yield of Cangmai 028.Liang YU Liya NIU Jing FU Fengzhi WANG Songshan ZHAO Li LU Weiwei WANG 2017Asian Agricultural Research2017,9,2:0
16Effective Classroom Management in Young Learners English Teaching显示文摘Young learners (children from the first year of formal schooling, five or six years old to eleven or twelve years of age) English teaching program is very popular in many places of China, especially in urban areas. Although all the young learners English teachers may use different textbooks, they face a same problem -- classroom management. It is one ofLi Qinglan Wu Junyan & Hou Songshan, Shijiazhuang Mechanical Engineering College 2004中国英语教学:英文版2004,27,3:0
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