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| 1 | 北京PM_(2.5)化学物种的质量平衡特征显示文摘以北京 2个采样点连续采集的样品对PM2 5中的元素、水溶性离子和含碳组分进行分析 .车公庄和清华园PM2 5中有机物的含量分别为 2 7 8%和 30 9% ,是含量最丰富的物种 ,其次是二次无机粒子、土壤尘、元素碳和微量元素 .PM2 5中约有 2 4 %的质量未能鉴别成分 ,相关性分析表明 ,含碳物种的估算所引起的偏差可能是主要的原因 .采暖期重污染周和春季沙尘周PM2 5的化学物种构成悬殊 ,反映了季节性变化的源排放和特殊气象条件的综合作用 . | 杨复沫 贺克斌 马永亮 张强 Cadle S H Chan T Mulawa P A | 2004 | 环境化学2004，23，3： | 63 |
| 2 | Th1 cytokines promote T-cell binding to antigen-presenting cells via enhanced hyaluronan production and accumulation at the immune synapse显示文摘Hyaluronan(HA)production by dendritic cells(DCs)is known to promote antigen presentation and to augment T-cell activation and proliferation.We hypothesized that pericellular HA can function as intercellular‘glue’directly mediating T cell–DC binding.Using primary human cells,we observed HA-dependent binding between T cells and DCs,which was abrogated upon pre-treatment of the DCs with 4-methylumbelliferone(4-MU),an agent which blocks HA synthesis.Furthermore,T cells regulate HA production by DCs via T cell-derived cytokines in a T helper(Th)subset-specific manner,as demonstrated by the observation that cell-culture supernatants from Th1 but not Th2 clones promote HA production.Similar effects were seen upon the addition of exogenous Th1 cytokines,IL-2,interferon c(IFN-c)and tumor necrosis factor a(TNF-a).The critical factors which determined the extent of DC–T cell binding in this system were the nature of the pre-treatment the DCs received and their capacity to synthesize HA,as T-cell clones which were pre-treated with monensin,added to block cytokine secretion,bound equivalently irrespective of their Th subset.These data support the existence of a feedforward loop wherein T-cell cytokines influence DC production of HA,which in turn affects the extent of DC–T cell binding.We also document the presence of focal deposits of HA at the immune synapse between T-cells and APC and on dendritic processes thought to be important in antigen presentation.These data point to a pivotal role for HA in DC–T cell interactions at the IS. | Paul L Bollyky Stephen P Evanko Rebecca P Wu Susan Potter-Perigo S Alice Long Brian Kinsella Helena Reijonen Kelly Guebtner Brandon Teng Christina K Chan Kathy R Braun John A Gebe Gerald T Nepom Thomas N Wight | 2010 | Cellular & Molecular Immunology2010，7，3： | 3 |
| 3 | Reproducibility of transmission line measurement of bipolar I-V characteristics of MOSFET's 显示文摘 | CHEN T P CHAN R | 1999 | IEEE Trans Instrum and Measur1999，48，3： | 1 |
| 4 | High-order total variation-based image restoration 显示文摘 | Chan T Marquina A Mulet P | 2000 | SIAM Journal on Scientific Computing2000，22，2： | 1 |
| 5 | Integrating Environmental Criteria into the Supplier Selection Process显示文摘 | HUMPHREYS P K WONG Y K CHAN F T S | 2003 | Journal of Materials Processing Technology2003，138，6： | 1 |
| 6 | Cytotoxic Acylated Triterpene Saponins from the husks of Xanthoceras sorbifolia显示文摘 | Chan P K Zhao M Che C T | 2008 | J Nat Prod2008，71，： | 1 |
| 7 | Polymerase chain reaction enzyme-linked immunosorbent assay detection of mycoplasma consensus gene in sperm with low oocyte penetration capacity 显示文摘 | Kalugdan T Chan P J S eraj IM | 1996 | Journal Article Fertility and Sterility1996，66，5： | 1 |
| 8 | A prospective randomized study of chemotherapy adjunctive to definitive radiotherapy in advanced nasopharyngeal carcinoma显示文摘 | Chan A T Teo P M Leung T W | 1995 | Int J Radiat Oncol Biol Phys1995，33，3： | 1 |
| 9 | Rational harmonic active and passive modelocking in a figure-of-eight fiber laser显示文摘 | LI S P LOU C Y CHAN K T | 1998 | Electronics Letters1998，34，4： | 1 |
| 10 | Color TV: Total Variation Methods for Restoration of Vector-Valued Images 显示文摘 | Blomgren P Chan T F | 1998 | IEEE Trans on Image Processing1998，7，3： | 1 |
| 11 | The effect of excimer laser surface treatment on the pitting corrosion fatigue behaviour of alnminium alloy 7075 显示文摘 | Chan C P Yue T M Man H C | 2003 | Journal of Materials Science2003，15，12： | 1 |
| 12 | Analytic model of phononic crystals with local resonances 显示文摘 | Liu Z Y Chan C T Sheng P | 2005 | Physical Review B2005，71，01： | 1 |
| 13 | Vibration and Deflection Characteristics of Semi Rigid Jointed Frames 显示文摘 | Peter P T C Chan S L | 1997 | Engineering Structures1997，19，10： | 1 |
| 14 | The rode of chemotherapy in the management of nasopharyngea carcinomal显示文摘 | Chan A T C Teo P M Leung T W | 1998 | Cancer1998，82，6： | 1 |
| 15 | Synthesizing two character interactions by merging captured interaction samples with their spacetime relationships显示文摘 | Chan J C P Tang J K T Leung H | 2013 | Computer Graphics Forum2013，32，7： | 1 |
| 16 | Imaging of peripheral PNET:common and uncommon locations显示文摘 | Khong P L Chan G C Shek T W H | 2002 | Clin Radiol2002，57，4： | 1 |
| 17 | Electro- cardiographic diagnosis of acute myocardial infarction显示文摘 | Brady W J Jr Aufderheide T P Chan T | 2001 | Emerg Med Clin North AM2001，19，2： | 1 |
| 18 | Wound complication of minimally invasive plate osteosynthesis in distal tibia fractures显示文摘 | Lau T W Leung F Chan S P | 2008 | International Orthopaedics2008，32，5： | 1 |
| 19 | Monitoring of an Aeroponic Greenhouse with a Sensor Network显示文摘 | Leong B T Chan T K Sel appan P | | 0，，3： | 1 |
| 20 | Integrating environmental criteria into the supplier selection process 显示文摘 | HUMPHREYS P K WONG Y K CHAN F T S | 2003 | Journal of Materials Processing Technology2003，138，13： | 1 |
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