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| 1 | 黔中气溶胶传输的^210Pb和^7Be示踪:Ⅰ.周时间尺度的解释显示文摘认识环境核素在不同地域空气中的浓度分布和沉降到地表环境的通量对气溶胶污染物全球扩散模型的建立和验证、沉积过程示踪和沉积计年、流域侵蚀示踪参比,以及生态系统受天然辐照的评价等多个领域都是关键的依据。自2001年以来在贵阳观风山等地逐周连续采样,对近地面空气和降水中210Pb和7Be浓度的观测结果表明:①因气象条件变化,近地面空气210Pb和7Be周浓度具有2~6周变幅不等的短周期波动。210Pb空气浓度在年内的总趋势呈现出受气温变化的总体影响和降水的短暂调控;而7Be空气浓度出现连续不断的峰—谷交替。②两核素在近地面空气周浓度的低值同步,210Pb/7Be比率较高(≥0.8),显示出海洋性贫210Pb-7Be气团的入侵影响;它们高的周浓度也同步耦合,比率较低(≤0.7),显示出高层大气富7Be气团的输入。③210Pb和7Be的周降水浓度及水—气分配系数在秋末~春季较高,而春末—秋季明显偏低。周降水浓度随同期空气浓度呈增高趋势,其季节分界分别为0.2Bq/L和1Bq/L;而Kd值随同期空气浓度增大呈降低趋势。210Pb和7Be的降水沉降主要分布在每年的春夏季;周沉降量随同期降水量呈增大趋势,7Be增大的斜率约为210Pb的3倍;当近于零降水时,它们在降水中的初始比率约为2.5。它们出现高或者较高的周降水沉降都伴随当周或邻周空气浓度的急剧下降;降水中210Pb/7Be比率主要分布在≤0.5,并与空气中210Pb/7Be比率基本同步,显示出两核素被降水清洗的效率基本相近。④2008年冰冻极端天气过程中,210Pb-7Be空气浓度同步低谷并存在气溶胶低浓度与高比活度耦合。⑤观风山7Be周空气浓度显示低纬度、较高海拔地区的预期水平;短周期波动反映强下沉气流和低海拔上升气团影响分别在观风山和瓦里关山的滞后性。 | 万国江 郑向东 Lee H N Bai Z G 万恩源 王仕禄 杨伟 苏菲 汤洁 王长生 黄荣贵 刘鹏 | 2010 | 地球科学进展2010，25，5： | 12 |
| 2 | 黔中气溶胶传输的^210Pb和^7Be示踪:Ⅱ.月及年时间尺度的剖析显示文摘自2001年12月连续逐周在贵阳观风山附近对近地面空气210Pb-7Be浓度和沉降量的观测表明:区域性降水和气温制约近地面空气210Pb具高浓度'U'型年分布;降水量和平流层向下输送影响近地面空气7Be月均浓度的季节性变化;210Pb/7Be月均浓度比率受控于210Pb变化和富7Be气团下沉的影响。观风山与瓦里关山之间因纬度和海拔的关系,7Be比率急剧震荡,显示出海洋性贫7Be气团入侵对观风山地区的明显影响。2002—2008年间贵阳观风山近地面空气210Pb的年均浓度(2.8±0.6)mBq/m3,约为全球若干站点中最高平均浓度值的4倍;而7Be的年均浓度(4.8±0.6)mBq/m3,与全球高海拔站点长期观测的平均值相当,大约为北半球中纬度对流层顶部附近7Be浓度值(18.0mBq/m3)的1/3.8,显示出低纬度、较高海拔地区的预期水平。2003年,瓦里关山和观风山近地面空气7Be的年均浓度比为3.8,与预期的大气输送和混合作用基本一致。7Be月均浓度的增大趋势反映出受太阳黑子数减少的变化关系,其影响底线大约为4mBq/m3;7Be年均浓度波动的增大趋势反映出受太阳黑子数降低的可能影响。贵阳观风山降水中7Be和210Pb的体积加权浓度分别为0.72Bq/L和0.27Bq/L;年沉降通量分别为0.080Bq/(cm2.a)和0.031Bq/(cm2.a)。数值模拟显示出全球空气210Pb高浓度区和高沉降通量环带分布,印证了洱海和红枫湖沉积物7Be和137Cs蓄积的模拟结果。 | 万国江 郑向东 Lee H N Bai Z G 万恩源 王仕禄 杨伟 苏菲 汤洁 王长生 黄荣贵 刘鹏 | 2010 | 地球科学进展2010，25，5： | 6 |
| 3 | Celiac disease serology in patients with different pretest probabilities: Is biopsy avoidable?显示文摘AIM: To establish the diagnostic performance of sev-eral serological tests, individually and in combination, for diagnosing celiac disease (CD) in patients with different pretest probabilities, and to explore potential se- rological algorithms to reduce the necessity for biopsy. METHODS: We prospectively performed duodenal biopsy and serology in 679 adults who had either high risk (n = 161) or low risk (n = 518) for CD. Blood samples were tested using six assays (enzyme-linked immunosorbent assay) that detected antibodies to tissue transglutaminase (tTG) and deamidated gliadin peptide (DGP). RESULTS: CD prevalence was 39.1% in the high-risk population and 3.3% in the low-risk group. In high-risk patients, all individual assays had a high diagnostic efficacy [area under receiving operator characteristic curves (AU ROC): 0.968 to 0.999]. In contrast, assays had a lower diagnostic efficacy (AU ROC: 0.835 to 0.972) in the low-risk group. Using assay combinations, it would be possible to reach or rule out diagnosis of CD without biopsy in 92% of cases in both pretest populations. We observed that the new DGP/tTG Screen assay resulted in a surplus compared to more conventional assays in any clinical situation. CONCLUSION: The DGP/tTG Screen assay could be considered as the best initial test for CD. Combinations of two tests, including a DGP/tTG Screen, might be able to diagnose CD accurately in different clinical scenarios making biopsy avoidable in a high proportion of subjects. | Emilia Sugai María L Moreno Hui J Hwang Ana Cabanne Adriana Crivelli Fabio Nach-man Horacio Vázquez Sonia Niveloni Julio Argonz Roberto Mazure Graciela La Motta María E Caniggia Edgardo Smecuol Néstor Chopita Juan C Gómez Eduardo Maurińo Julio C Bai | 2010 | World Journal of Gastroenterology2010，16，25： | 4 |
| 4 | Progress of Fabrication and Applications of Electrospun Hierarchically Porous Nanofibers显示文摘In recent years,electrospun nanofibers have attracted great attention for their facile adjustable structure,morphology feature and chemical composition.Especially,significant interest has been devoted to the development of electrospun nanofibers with multiscale pores from micropores and mesopores to macropores,owing to their large specific surface area,hierarchical pore structures,abundant active sites and many other unique properties and applications.This review presents an overview on the design strategies,preparation methods,physical properties and applications of electrospun hierarchical porous nanofibers.At first,electrospinning fabrication of nanofibers with different types of pores including micropores,mesopores,macropores and hierarchical pores are introduced.Then the structures,properties of electrospun porous nanofibers and their applications in several important areas,such as catalysis,energy storage,adsorption and separation,heat insulation and flame retardant,sound absorption and wave absorption,sensor and biomedical are summarized.At last,challenges and potential opportunities of electrospun porous nanofibers in the future are highlighted. | Ranran Liu Lanlan Hou Guichu Yue Huaike Li Jiesan Zhang Jing Liu Beibei Miao Nü Wang Jie Bai Zhimin Cui Tianxi Liu Yong Zhao | 2022 | Advanced Fiber Materials2022，4，4： | 3 |
| 5 | Scattering of guided waves by circumferential cracks in steel pipes显示文摘 | Bai H Shah A H Popplewell N | 2001 | Trans ASME J of Appl Mech2001，68，4： | 2 |
| 6 | HPRS-103 (exogenous avian leukosis virus, subgroup J) has an env related to those of endogenous elements EAV-0 and E51 and E element found previously only in sarcoma virus显示文摘 | BAI J PAYNE L N SKINNER M A | 1995 | J Wirol1995，69，2： | 1 |
| 7 | Up-re- gulation of the parathyroid calcium-sensing receptor after bum injury in sheep:a potential contributoryfactor to postburn hypocalcemia显示文摘 | Murphey ED Chattopadhyay N Bai M | 2000 | Crit Care Med2000，28，12： | 1 |
| 8 | Role of aquaporins in alveolar fluid clearance in neonatal and adult lung, and in oedema formation following acute lung injury: studies in transgenic aquaporin null mice 显示文摘 | Song Y Fukuda N Bai C | 2000 | J Physiol2000，525，3： | 1 |
| 9 | A polyphenol and two bibenzyls from Pleione bulbocodioides 显示文摘 | Bai L Maxukawa N Yamaki M | 1997 | Phytochemistry1997，47，8： | 1 |
| 10 | All-trans retinoie acid down-regulates inflammatory responses by shifting the Treg/Thl7 profile in human ulcerative and murine colitis显示文摘 | Bai A Lu N Guo Y | 2009 | J Lenkoc Biol2009，86，4： | 1 |
| 11 | 查看详情显示文摘 | I Ren F M Wang X L Dong W J Bai L N | | 0，，： | 1 |
| 12 | Modeling path duration distributions in MANETs and their impact on reactive routing protocols 显示文摘 | Bai F N Sadagopan B Krishnamachari A Helmy | 2004 | IEEE Journal on Selected Areas in Communications: (S0733-8716)2004，22，7： | 1 |
| 13 | Four stilbenoids from Pleione bulbocodioides 显示文摘 | Bai L Maxukawa N Yamaki M | 1998 | Phytochemistry1998，48，2： | 1 |
| 14 | Panax notoginsenoside produces neuropr- otective effects in rat model of acute spinal cord ischemia-reperfusion injury 显示文摘 | Ning N Dang X Bai C | 2012 | J Ethnopharmacol2012，139，2： | 1 |
| 15 | Experimental investigation of a dual compensation chamber loop heat pipe显示文摘 | Lin G P Li N Bai L Z et a1 | 2010 | InternationalJournal of Heat and Mass Transfer2010，53，1516： | 1 |
| 16 | HR-TEM microstructures of PAN precursor fibers显示文摘 | Bai YJ Wang C G Lun N | 2006 | Carbon2006，44，9： | 1 |
| 17 | Magnetorheological damper utilizing an inner bypass for ground vehicle suspensions 显示文摘 | BAI X X HU Wei WERELEY N M | 2013 | IEEE Transactions on Magnetics2013，49，7： | 1 |
| 18 | Structure and photocatalytic property of Mo doped TiO2 nanoparti- cles显示文摘 | WANG S BAI L N SUN H M etal | 2013 | Powder Technology2013，244，： | 1 |
| 19 | TLR3signaling in macrophages is indispensable for the protective immunity of invariant natural killer T cells against enterovirus 71infection显示文摘 | Zhu K Yang J Luo K Yang C Zhang N Xu R Chen J Jin M Xu B Guo N Wang J Chen Z Cui Y Zhao H Wang Y Deng C Bai L Ge B Qin C F Shen H Yang C F Leng Q | 2015 | PLoS Pathog2015，11，10： | 1 |
| 20 | Kaurane glycosides from Inula britannica 显示文摘 | Shao Y Bai N Zhou B | 1996 | Phytochem1996，42，3： | 1 |
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