科研成果 by Year: 2011

2011

王一川, 张庆红. 2008年残奥会一次预报失败天气个例的数值模拟不确定性研究. 北京大学学报(自然科学版). 2011;(4):647-654.Abstract

2008年9月14日一个飑线袭击北京,城区发生了短时雷雨和大风天气,而当时的天气预报失败.利用WRF(weather research and forecasting)模式和ARPS(advanced regional prediction system)模式的资料分析系统ADAS(ARPS data analysis system),研究了模式水平分辨率,不同观测资料(风云2c卫星资料、MICAPS数据、GTS(global telecommunication system)数据)同化所产生的初始场对这次飑线过程模拟的敏感性.结果表明,15km模式分辨率不能模拟出北京的降雨过程,而5km水平分辨率模式均能模拟出北京的降雨过程,只是降雨落区和强度有所不同.不用资料同化的对照试验不能模拟出城区主要降水区.使用资料同化系统ADAS后,降水落区均有改善.MICAPS资料中河套地区一个探空站的加入,使得初值中河套地区的东北风比控制试验强,模拟的飑线比控制试验偏南,和实况更加接近.

吴慰慈, 谷秀洁, 张久珍. 2010年图书馆学学术进展. 图书馆论坛. 2011;(6):23-31,61.Abstract

2010年图书馆学研究热点集中在下述九个方面:基础理论研究、《公共图书馆法》立法研究、公共图书馆研究、数字阅读与移动图书馆研究、图书馆服务创新研究、信息素养教育与文献检索课实证研究、图书馆知识产权管理研究、公共部门信息增值利用研究以及文华图专与文华精神研究等.

Liu X, Wang Z, Xie XC, Yu Y. Abelian and non-Abelian anyons in integer quantum anomalous Hall effect and topological phase transitions via superconducting proximity effect. Physical Review B - Condensed Matter and Materials Physics. 2011;(12).

Lu Z, Xue M, Shen G, Li K, Li X, Wang X, Tao S. Accumulation Dynamics of Chlordanes and Their Enantiomers in Cockerels (Gallus gallus) after Oral Exposure. Environmental Science & Technology [Internet]. 2011;45:7928-7935. 访问链接

田君, 唐迅, 余灿清, 陈大方, 陈卿, 曹洋, 范雯怡, 曹卫华, 詹思延, 吕筠, et al. ACE2基因多态性与苯那普利降压效果相关性. 中国公共卫生中国公共卫生. 2011;27:1231-1234.Abstract

目的研究高血压患者血管紧张素转换酶2(ACE2)基因rs2285666和rs2106809位点多态性与服用苯那普利后长期降压效果的关系,探讨ACE2基因与血管紧张素Ⅱ的1型受体(AGTR1)、血管紧张素原(AGT)基因位点之间的交互作用。方法在上海市南市区,选择苯那普利上市后的3年监测研究中单纯服用苯那普利的全部≥35岁高血压患者,共1 447例,分析ACE2基因rs2285666和rs2106809位点多态性与服药后血压变化指标的关联,并应用广义多因子降维法(GMDR)分析ACE2、AGTR1、AGT基因13个位点间的交互作用。结果 1447例高血压患者中,基线血压达标者181例,占12.5%,基线血压未达标者1 266例,占87.5%;成功鉴定rs2285666基因型者1 230例,其中男性746例,女性484例;成功鉴定rs2106809基因型者1 142例,其中男性668例,女性474例;调整年龄、基线血压指标、首诊药物剂量和尿蛋白水平后,基线血压达标者中,rs2285666位点与男性脉压差变化值有关联(β=0.24,P=0.02),rs2106809位点与男性收缩压差值有关联(β=0.23,P=0.04);基线血压未达标者中,rs2106809位点与女性收缩压差值有关联(β=-0.06,P=0.04);交互作用分析结果表明,男性收缩压变化值、女性收缩压差值和女性舒张压差值存在多位点参与的交互作用模型。结论 ACE2基因rs2285666和rs2106809位点与苯那普利的长期降压效果相关,且在降压过程中ACE2、AGTR1、AGT基因间存在交互作用。

Starr DE, Pan D, Newberg JT, Ammann M, Wang EG, Michaelides A, Bluhm H. Acetone adsorption on ice investigated by X-ray spectroscopy and density functional theory. Physical Chemistry Chemical Physics [Internet]. 2011;(44):19988-19996. 访问链接

Ouillette P, Collins R, Shakhan S, Li J, Peres E, Kujawski L, Talpaz M, Kaminski M, Li C, Shedden K, et al. Acquired genomic copy number aberrations and survival in chronic lymphocytic leukemia. [Internet]. 2011;(11):3051-3061. 访问链接

Zhang B, Sun L, Yang Y-M, Huang H-P, Zhu F-P, Wang L, Zhang X-Y, Guo S, Zuo P-L, Zhang CX, et al. Action potential bursts enhance transmitter release at a giant central synapse. Journal of Physiology [Internet]. 2011;(9):2213-2227. 访问链接

Chen H, Sun H, You F, Sun W, Zhou X, Chen L, Yang J, Wang Y, Tang H, Guan Y, et al. Activation of STAT6 by STING is critical for antiviral innate immunity. Cell [Internet]. 2011;(2):436-446. 访问链接

Luo D-G, Yue WWS, Ala-Laurila P, Yau K-W. Activation of visual pigments by light and heat. [Internet]. 2011;(6035):1307-1312. 访问链接

Xu Z, Zhang J, Yang G, Hu M. Acyl peroxy nitrate measurements duringthe photochemical smog season inBeijing, China. Atmospheric Chemistry and Physics Discussions. 2011;11(3):10265-10303.Abstract

In situ measurements of acyl peroxy nitrates (PANs), including peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN), and peroxymethacryloyl nitrate (MPAN), were conducted using a gas chromatography-electron capture detector (GC-ECD) system 5 during the photochemical smog season in Beijing, China. The maximum mixing ratios were 17.81, 2.48, and 0.27 ppbv for PAN, PPN, and MPAN, respectively. During the measurement period, PAN levels twice exceeded the maximum recommended mixing ratio established by the World Health Organization (WHO). Average ratios of PAN/PPN, PAN/MPAN, and PPN/MPAN were 7.41, 47.65, and 6.91, respectively. The average ratio of PAN/O310 (0.15) in Beijing was significantly higher than those in other areasstudied. The frequencies of PANs showed both Gaussian and Weibull modes of distribution. Wind direction was closely related to PAN variation. Anthropogenic sources played an important role in PAN formation, as estimated from PPN and MPAN levels. Relative humidity (RH) and total particle surface area were related with the heteroge- 15 neous reactions of PANs with surface concentrations of particulate matter ≤10 µm in diameter.

Lan G, Schulmeister S, Sourjik V, Tu Y. Adapt locally and act globally: Strategy to maintain high chemoreceptor sensitivity in complex environments. Molecular Systems Biology [Internet]. 2011. 访问链接

Shao S, Lu T, Cai W. Adaptive conservative cell average spectral element methods for transient Wigner equation in quantum transport. Communications in Computational Physics [Internet]. 2011;9(3):711-739. 访问链接 Abstract

A new adaptive cell average spectral element method (SEM) is proposed to solve the time-dependent Wigner equation for transport in quantum devices. The proposed cell average SEM allows adaptive non-uniform meshes in phase spaces to reduce the high-dimensional computational cost of Wigner functions while preserving exactly the mass conservation for the numerical solutions. The key feature of the pro- posed method is an analytical relation between the cell averages of the Wigner function in the k-space (local electron density for finite range velocity) and the point values of the distribution, resulting in fast transforms between the local electron density and local fluxes of the discretized Wigner equation via the fast sine and cosine transforms. Numerical results with the proposed method are provided to demonstrate its high accuracy, conservation, convergence and a reduction of the cost using adaptive meshes.

Fassett JT, Hu X, Xu X, Lu Z, Zhang P, Chen Y, Bache RJ. Adenosine kinase regulation of cardiomyocyte hypertrophy. American Journal of Physiology - Heart and Circulatory Physiology [Internet]. 2011;(5):H1722-H1732. 访问链接

Ma J, Michaelides A, Alfè D, Schimka L, Kresse G, Wang E. Adsorption and diffusion of water on graphene from first principles. Physical Review B - Condensed Matter and Materials Physics. 2011;(3).

Cao T, Feng J, Wang EG. Adsorption of hydrogen on the interface of a graphene/boron nitride hybrid atomic membrane. Physical Review B - Condensed Matter and Materials Physics. 2011;(20).

Cao T, Feng J, Wang EG. Adsorption of hydrogen on the interface of a graphene/boron nitride hybrid atomic membrane. Physical Review B [Internet]. 2011;84. 访问链接

Wang Y, Zhang L, Ma S, Gao W. Advanced spatial and Temporal Direct Mode for B picture coding, in 2011 IEEE Visual Communications and Image Processing, VCIP 2011, Tainan, Taiwan, November 6-9, 2011.; 2011:1–4. 访问链接

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