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| 1 | Flow Characteristics Diagnosis and Optimization for Dust Collectors Inflow Duct in Thermal Power Plants显示文摘火电厂烟风道用于输送烟气、冷风等介质,其设计优化水平不但影响火电厂烟风系统阻力的大小,而且影响与烟风道直接相连的各个设备的运行状态。某600MW机组除尘器前烟道设计不合理,存在磨损严重、进入除尘器烟气分配不均等问题,文中采用标准缸￡模型,利用Fluent求解器对该部分烟道的流场进行数值计算,诊断分析其存在的主要问题,提出的3个改造方案均可使烟道阻力大幅度下降、烟道磨损减轻、进入除尘器烟气分配均匀。同时,研究了缓转半径及烟气流速对该段烟道阻力和烟气分配的影响情况,计算结果表明该段烟道缓转半径宜选在0.875以上,烟气流速对该段烟道的性能基本没有影响。 | LIU Ming MENG Guixiang YAN Junjie CHEN Weixiong LI Weidong CHONG Daotong LIU Jiping | 2013 | 中国电机工程学报2013，33，11： | 22 |
| 2 | Effect of exposure to ambient PM2.5 pollution on the risk of respiratory tract diseases: a meta-analysis of cohort studies显示文摘The International Agency for Research on Cancer and the World Health Organization have designated airborne particulates,including particulates of median aerodynamic diameter < 2.5um(PM_(2.5)),as Group 1 carcinogens.It has not been determined,however,whether exposure to ambient PM_(2.5) is associated with an increase in respiratory related diseases.This meta-analysis assessed the association between exposure to ambient fine particulate matter(PM_(2.5)) and the risk of respiratory tract diseases,using relevant articles extracted from PubMed,Web of Science,and Embase.In results,of the 1,126 articles originally identified,35(3.1%) were included in this meta-analysis.PM_(2.5)was found to be associated with respiratory tract diseases.After subdivision by age group,respiratory tract disease,and continent,PM_(2.5) was strongly associated with respiratory tract diseases in children,in persons with cough,lower respiratory illness,and wheezing,and in individuals from North America,Europe,and Asia.The risk of respiratory tract diseases was greater for exposure to traffic-related than non-traffic-related air pollution.In children,the pooled relative risk(RR) represented significant increases in wheezing(8.2%),cough(7.5%),and lower respiratory illness(15.3%).The pooled RRs in children were 1.091(95%CI:1.049,1.135) for exposure to<25 μg/m^3 PM_(2.5),and 1.126(95%CI:1.067,1.190) for exposure to > 25 μg/m^3 PM_(2.5).In conclusion,exposure to ambient PM_(2.5) was significantly associated with the development of respiratory tract diseases,especially in children exposed to high concentrations of PM_(2.5). | Qian Liu Cheng Xu Guixiang Ji Hui Liu Wentao Shao Chunlan Zhang Aihua Gu Peng Zhao | 2017 | The Journal of Biomedical Research2017，31，2： | 16 |
| 3 | Experimental study on the performance of bowl-tray rice precision seeder显示文摘In order to optimize the parameters of bowl-tray rice precision seeder and improve its performance,three major factors respectively at five levels,including shaped hole diameter,vertical displacement of rice seeds and rotating speed of cam,were tested,the quadratic orthogonal rotational regression experiments were conducted,and the effects on seeding rate,leakage sowing rate and the injury rate were investigated.The test results show that factors affecting rice seeding rate are in the order of shaped hole diameter,rotating speed of cam and vertical displacement of rice seeds.The factors affecting rice planting leakage rate are in the order of shaped hole diameter,vertical displacement of rice seeds and rotating speed of cam,and the factors affecting rice injury rate are in the order of rotating speed of cam,vertical displacement of rice seeds and shaped hole diameter.Optimal parameters(shaped hole diameter:10 mm,vertical displacement of rice seeds:27 mm,rotating speed of cam:13 r/min)and performance index(seeding rate:95.43%,leakage sowing rate:0.37%,injury rate:0.58%)provided the basis for design and performance improvement of the bowl-tray rice precision seeder. | Yi Shujuan Liu Yongfen Wang Chun Tao Guixiang Liu Haiyan Wang Ruihan | 2014 | International Journal of Agricultural and Biological Engineering2014，7，1： | 10 |
| 4 | Fluxes of methane,carbon dioxide and nitrous oxide in an alpine wetland and an alpine grassland of the Tianshan Mountains,China显示文摘Methane(CH4), carbon dioxide(CO2) and nitrous oxide(N2O) are known to be major greenhouse gases that contribute to global warming. To identify the flux dynamics of these greenhouse gases is, therefore, of great significance. In this paper, we conducted a comparative study on an alpine grassland and alpine wetland at the Bayinbuluk Grassland Eco-system Research Station, Chinese Academy of Sciences. By using opaque, static, manual stainless steel chambers and gas chromatography, we measured the fluxes of CH4, N2O and CO2 from the grassland and wetland through an in situ monitoring study from May 2010 to October 2012. The mean flux rates of CH4, N2O and CO2 for the experimental alpine wetland in the growing season(from May to October) were estimated at 322.4 μg/(m2?h), 16.7 μg/(m2?h) and 76.7 mg/(m2?h), respectively; and the values for the alpine grassland were –88.2 μg/(m2?h), 12.7 μg/(m2?h), 57.3 mg/(m2?h), respectively. The gas fluxes showed large seasonal and annual variations, suggesting weak fluxes in the non-growing season. The relationships between these gas fluxes and environmental factors were analyzed for the two alpine ecosystems. The results showed that air temperature, precipitation, soil temperature and soil moisture can greatly influence the fluxes of CH4, N2O and CO2, but the alpine grassland and alpine wetland showed different feedback mechanisms under the same climate and environmental conditions. | GuiXiang HE KaiHui LI XueJun LIU YanMing GONG YuKun HU | 2014 | Journal of Arid Land2014，6，6： | 7 |
| 5 | Experimental study on seed-filling performance of maize bowl-tray precision seeder显示文摘According to the requirement of assorted maize transplanting machine,a maize bud-seed precise sowing device was presented for use in cold areas.Experiments were performed to optimise the parameters of a maize bowl-tray precise seeder to improve the seed-filling performance.When the diameter of brush seed wheel was 78 mm,the clearance of brushing seed was 3 mm,with the maize varieties Demeiya 1,the moisture content about 40%,the depth of shaped hole 6 mm,the two major factors,the diameter of shaped hole and the velocity of seed box,were tested at five levels for each factor using the orthogonal rotational regression experiment.The effects on the single-seed rate,multi-seed rate,empty-seed rate,broken-bud rate and damage rate were investigated.The test results indicated that the factors affecting the single-seed rate and the multi-seed rate were the diameters of shaped hole and the velocity of seeds box,and the factor affecting the empty-seed rate was primarily the diameter of shaped hole.This study determined the optimal parameters,and verified the results,which provide the basis for the design and performance improvement of the maize bud-seed bowl-tray precision seeder. | Mao Xin Yi Shujuan Tao Guixiang Yang Li Liu Haiyan Ma Yongcai | 2015 | International Journal of Agricultural and Biological Engineering2015，8，2： | 7 |
| 6 | Emodin attenuates severe acute pancreatitis-associated acute lung injury by suppressing pancreatic exosome-mediated alveolar macrophage activation显示文摘Severe acute pancreatitis-associated acute lung injury(SAP-ALI) is a serious disease associated with high mortality. Emodin has been applied to alleviate SAP-ALI;however, the mechanism remains unclear. We report that the therapeutic role of emodin in attenuating SAP-ALI is partly dependent on an exosomal mechanism. SAP rats had increased levels of plasma exosomes with altered protein contents compared to the sham rats. These infused plasma exosomes tended to accumulate in the lungs and promoted the hyper-activation of alveolar macrophages and inflammatory damage. Conversely,emodin treatment decreased the plasma/pancreatic exosome levels in the SAP rats. Emodin-primed exosomes showed less pro-inflammatory effects in alveolar macrophages and lung tissues than SAP exosomes. In detail, emodin-primed exosomes suppressed the NF-κB pathway to reduce the activation of alveolar macrophage and ameliorate lung inflammation by regulating PPARγ pathway, while these effects were amplified/abolished by PPARγ agonist/antagonist. Blockage of pancreatic acinar cell exosome biogenesis also exhibited suppression of alveolar macrophage activation and reduction of lung inflammation. This study suggests a vital role of exosomes in participating inflammation-associated organ-injury,and indicates emodin can attenuate SAP-ALI by reducing the pancreatic exosome-mediated alveolar macrophage activation. | Qian Hu Jiaqi Yao Xiajia Wu Juan Li Guixiang Li Wenfu Tang Jingping Liu Meihua Wan | 2022 | Acta Pharmaceutica Sinica B2022，12，10： | 7 |
| 7 | Sorption of tetracycline to sediments and soils:assessing the roles of pH,the presence of cadmium and properties of sediments and soils显示文摘Batch sorption experiments were conducted to evaluate the sorption behavior of tetracycline(TC,H_(3)L)on sediments and soils in the presence and absence of cadmium(Cd),as affected by pH and properties of sediments and soils.The results indicated stronger nonlinearity and higher capacity of TC sorption on sediments than on soils.Sorption of TC also strongly depended on environmental factors and sediment/soil properties.Lower pH facilitated TC sorption through a cation exchange mechanism,which also took place at pH values above 5.5,where TC existed as a zwitterion(H_(2)L^(0))or anions(HL^(-)and L^(2-)).When pH was above 7,however,ligand-promoted dissolution of TC might occur due to TC weakening the Al-O bond of aluminum oxide and the Fe-O bond of iron oxide.Natural organic matter(NOM)plays a more important role in TC sorption than cation exchange capacity(CEC)and clay contents.The presence of Cd(II)increased TC sorption on both sediments and soils,which resulted from the decrease of equilibrium solution pH caused by Cd^(2+)exchange with H^(+)ions of sediment/soil surfaces.The increase of TC sorption was also related to the formation of TC-Cd complexes,where Cd^(2+)acted as a bridge between the sediment/soil and TC. | Guixiang ZHANG Xitao LIU Ke SUN Ye ZHAO Chunye LIN | 2010 | Frontiers of Environmental Science & Engineering2010，4，4： | 5 |
| 8 | Cloning of the full-length gene of activin receptor-interacting protein2a and characterization of its interaction with ActR Ⅱ A显示文摘为了调查细胞内部的信号 transduction 的机制,由 activin 受体调停了,编码新奇 activin 的全身的基因交往受体的 protein2a (ARIP2a ) 从一个老鼠大脑 cDNA 图书馆被识别。ARIP2a 和 ARIP2 和在导致 activin 的 RAW264 的 ARIP2 的序列。7 房间被比较,并且在 ARIP2a 和 ActRIIA 之间的相互作用被证实。序列分析表明除了 99 th 氨基酸。RT-PCR 试金证明 ARIP2a mRNA 高度在大脑,垂体和睾丸被表示,并且中等在胰和卵巢,但是在另外的纸巾无法发现。而, ARIP2 mRNA 广泛地在我们测试了的所有老鼠纸巾被散布。而且, ARIP2a mRNA 的表示显著地在刺激 activin 的 RAW264 被减少。7 个房间;然而, ARIP2 mRNA 的表示被增加。另外,在 ARIP2a 之间的相互作用和 activin 类型 IIA 受体(ActRIIA ) 被哺乳动物的二混血儿的试金和下拉试金进一步表明。总起来说,那些结果显示尽管 ARIP2a 对 ARIP2 相应,他们在到 activin 的织物分发和回答是不同的。ARIP2a 能也与 activin 类型 II 受体(ActRIIA ) 交往被哺乳动物的 two-hybird 试金和下拉试金进一步表明。总起来说,那些结果显示尽管 ARIP2a 对 ARIP2 相应,他们在到 activin 的织物分发和回答是不同的。ARIP2a 能也作为 ARIP 家庭的一篇小说与 activin 类型 II 受体交往。 | CUI Xueling TAI Guixiang ZHANG Hongjun FANG Lin LIU Zhonghui | 2007 | Progress in Natural Science:Materials International2007，17，2： | 5 |
| 9 | Direct Effects of Activin A on the Activation of Mouse Macrophage RAW264.7 Cells显示文摘Macrophages play critical roles in innate immune and acquired immune via secreting pro-inflammatory mediators, phagocytosing microorganisms and presenting antigens. Activin A, a member of transforming growth factor β (TGF-β) superfamily, is produced by macrophages and microglia cells. In this study, we reported a direct effect of activin A as a pro-inflammatory factor on mouse macrophage cell line RAW264.7 cells. Our data revealed that activin A could not only increase IL-1β and IL-6 production from RAW264.7 cells, but also promote pinocytic and phagocytic activities of RAW264.7 cells. In addition, activin A obviously up-regulated MHC II expression on the surface of RAW264.7 cells, whereas did not influence MHC I expression. Activin A also enhanced CD80 expression, which is a marker of activated macrophages, but did not influence RAW264.7 cell proliferation. These data suggest that activin A may regulate primary macrophage-mediated innate and acquired immune response via promoting the activation of rest macrophages. | Jingyan Ge Yinan Wang Ye Feng Haiyan Liu Xueling Cui Guixiang Tai Zhonghui Liu | 2009 | Cellular & Molecular Immunology2009，6，2： | 4 |
| 10 | Field experimental study on pullout forces of rice seedlings and barnyard grasses for mechanical weed control in paddy field显示文摘Pullout forces of rice seedling and barnyard grass were tested by universal testing machine controlled by WDW-5 type microcomputer to obtain the pullout forces of rice seedling and barnyard grass.The measured pullout force was used to improve the weeding rate and reduce the rice seedling damage rate caused by mechanical weeding device.According to the measured continuous curve of pullout forces of rice seeding and barnyard grasses in weeding period,the best range of force required to pull out barnyard grasses from soil with no injury and damage to rice seedlings was discussed.Reasons for the difference in the pulling force were analyzed.Results show that,with the increment of the number of single cell rice seedlings the pullout force increases.The pullout forces of single cell rice seedlings and barnyard grasses at first increased slowly reaching the maximum value followed by rapid drop and finally it remained steady.The minimum pullout forces recorded during rice seedlings at the first and the second weeding periods were 2.57 N and 9.70 N,respectively,while the minimum forces during the first and second weeding periods were recorded as 1.24 N and 7.51 N,respectively,for barnyard grasses.The results show that the pullout forces of weeding to rice seedlings and barnyard grasses should be within 1.24 N to 2.57 N and 7.51 N to 9.70 N respectively in the first and second weeding periods. | Wang Jinwu Tao Guixiang Liu Yongjun Pan Zhenwei Zhang Chunfeng | 2014 | International Journal of Agricultural and Biological Engineering2014，7，6： | 4 |
| 11 | Study on cellular internalization of poly(vinyldiaminotriazine)-based hydrogen bonding type non-viral transgene vector显示文摘Previously we successfully prepared poly(vinyldiaminotriazine)(PVDT)-based non-viral vectors which complexed plasmid DNA via hydrogen bonding with adenine-thymine base pairs. In this report, surface charges and complex sizes of this system were further examined. The results showed that PVDT-based polymer could cover surface charges of DNA resulting in slightly negative or neutral complexes. It was also found that the complex sizes were governed by two events: the aggregation induced by the insta-bility of neutral particles, and more compact complexes produced by PVDT-based polymers. In the study of cellular uptake, chlorpromazine and filipin Ⅲ were used to inhibit clathrin- and caveolae-me- diated endocytosis, respectively. We found that PVDT-based systems were transported into cells via a non-clathrin, non-caveolae mediated endocytosis. This special process was studied by temperature inhibition and kinetics assays. It was revealed that such a pathway was characterized by (i) a more en-ergy dependent process and (ii) a much slow transfection-effective internalization. | YE GuiXiang CAO ZhiQiang LIN Lin CHEN DaYong LIU WenGuang | 2008 | Chinese Science Bulletin2008，53，15： | 3 |
| 12 | A composite model for complex building street configuration in a large eddy simulation of local urban atmospheric environment显示文摘The wind field and pollutant dispersion are predicted numerically in a local urban area with crowded buildings and heavy traffic.A domain decomposition method is used in the large eddy simulation,in which the urban area is decomposed into a central area,where pollution is the major concern,and a surrounding region,where the pollutant distribution is not important.The composite model is proposed for the complex building-street layout.The fine grid mesh is used to resolve the buildings in the central area while the buildings are treated as roughness elements in the surrounding region where the coarse grids are used.The proposed numerical method is applied to simulate the wind field and pollutant dispersion from vehicle exhaust in the Rua Do Campo area of Macao.The results show that the composite model is an appropriate method for predicting wind field and pollutant dispersion in the crowded building area. | LIU YuShi CUI GuiXiang WANG ZhiShi HUANG WeiXi XU ChunXiao ZHANG ZhaoShun | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，4： | 3 |
| 13 | A Critical Role of Activin A in Maturation of Mouse Peritoneal Macrophages in vitro and in vivo显示文摘Activin A,转变生长因素贝它(TGF-) 的一个多功能的因素总科,被 microglia 和巨噬细胞主要生产,并且它的反煽动性并且支持 inflammatory 活动是与巨噬细胞功能有关的两个。然而,在 vivo 的剩余的巨噬细胞上的 activin A 的直接效果仍然保持不清楚。在现在的学习,结果显示出那 activin A 不仅不增加了并且 IL-1 版本,而且在 vitro 并且在 vivo 的鼠标腹巨噬细胞的支持的吞噬细胞的能力,而它没影响 MHC 我和 MHC II 表示。而且,我们显著地发现那 activin A upregulated CD14 和 CD68 的表情,成熟巨噬细胞的标记,在在 vitro 并且在 vivo 的巨噬细胞的表面上。这些数据建议 activin A 能在 vitro 并且在 vivo 导致主要巨噬细胞成熟,但是不能经由调整涉及抗原的表示的 MHC 分子的表示触发获得的有免疫力的反应。 | Yinan Wang Xueling Cui Guixiang Tai Jingyan Ge Nan Li Fangfang Chen Fang Yu Zhonghui Liu | 2009 | Cellular & Molecular Immunology2009，6，5： | 2 |
| 14 | Abiotic association of phthalic acid esters with humic acid of a sludge landfill显示文摘在酞酸酸酉旨(PAE ) 和在污泥垃圾堆的腐殖的物质(HS ) 之间的不能生活的协会在 PAE 的命运和稳定性起一个重要作用。平衡分离与结合了 < 啜 class= “ a-plus-plus ” > 14 标记 C 被用来与腐殖的酸学习二丰富的 PAE (diethyl phthalate 和 di-n-butyl phthalate ) 的不能生活的协会(哈) 与不同稳定时间和不同分子的重量从污泥垃圾堆孤立。元素的分析和 Fourier 转变建议的红外线的分光光度计(FTIR ) 那高 K < 潜水艇 class= “ a-plus-plus ” > 价值哈与高芳香的内容和大分子的重量有关哈。结果显示 PAE 与的协会力量哈两个都取决于 PAE 的性质和特征哈。K < 潜水艇 class= “ a-plus-plus ” > 协会的 A 值强烈依赖于解决方案 pH,并且当 pH 从 3.0 ~ 9.0 被增加,戏剧性地减少了。结果建议了那 nonspecific 在 PAE 之间的恐水病的相互作用并且哈是到 PAE 与的协会的主要贡献者哈。在 HA 和 PAE 分子之间的交互氢契约可以也涉及协会。 | Xiaoli CHAI Yongxia HAO Xin ZHAO Guixiang LIU Ying ZHU Rong JI Jun WU Huanhuan TONG Youcai ZHAO | 2012 | Frontiers of Environmental Science & Engineering2012，6，6： | 2 |
| 15 | A theoretical investigation onthe structures, densities, detonation properties andpyrolysis mechanism of the nitroderivatives of toluenes 显示文摘 | Wang Guixiang Gong Xuedong Liu Yan Du Hongchen Xu Xiaojuan Xiao Heming | 2010 | Journal of Hazardous Materials2010，177，123： | 1 |
| 16 | Astrocytic effect of low molecular weight heparin-superoxide dismutase conjugate in interleukin-6 overexpressing mice following local cerebral ischemia显示文摘BACKGROUND:Studies have shown that low molecular weight heparin-superoxide dismutase conjugate exhibits a remarkable neuroprotective effect. OBJECTIVE:To investigate the effect of low molecular weight heparin-superoxide dismutase conjugate on astrocytes in an interleukin-6(IL-6) overexpressing mice following local cerebral ischemia. DESIGN,TIME AND SETTING:Randomized,cytological,controlled,animal study was performed in the Department of Physiology and Neuroscience,Neurology and Biochemistry and Molecular Biology,Medical University of South Carolina from January 2005 to March 2005. MATERIALS:Nine IL-6 transgenic mice,irrespective of gender,were randomly divided into three groups:sham-operated,model,and treatment,with three mice in each group.With exception of the sham-operated group,right middle cerebral artery occlusion was induced in the mice. Expression of glial fibrillary acidic protein,an astrocyte marker,was determined by immunohistochemistry.Low molecular weight heparin-superoxide dismutase conjugate was purchased from Biochemistry and Biotechnique Institute,Shandong University. METHODS:Two minutes prior to ischemia induction,0.5 mL/kg saline or 20 000 U/kg low molecular weight heparin-superoxide dismutase conjugate were administrated via the femoral artery in the model group and treatment group,respectively.The sham-operated group underwent the same protocols,with the exception of occlusion and treatment. MAIN OUTCOME MEASURES:The number of glial fibrillary acidic protein-positive cells was quantified under light microscopy(x200). RESULTS:In the sham-operated group,there were a large number of astrocytes in the IL-6 transgenic mice.However,the cell bodies were small,and the branches were few and thin.The number of astrocytes in the model group was remarkably less than the sham-operated group. Compared to the model and sham-operated groups,the number of astrocytes significantly increased,and the cell body became larger,following treatment with low molecular weight heparin-superoxide dismutase conjugate.Astrocytes exhibited hypertrophy and hyperplasia,and the processes became longer and thicker. CONCLUSION:The low molecular weight heparin-superoxide dismutase conjugate may provide neuroprotection through astrocytic activation at the super-early stage of cerebral ischemia and reperfusion. | Yizhao Li Guixiang Cui Qingde Wang Hongxia Liu Xiaoxia Zhang Fengshan Wang Keqin Xie | 2009 | Neural Regeneration Research2009，4，2： | 1 |
| 17 | Damage of the interstitial cells of Cajal and myenteric neurons causing ileus in acute necrotizing pancreatitis rats显示文摘 | Hui Zhou Li Liu Yu Bai Wenbin Wu Guixiang Li Jianping Li Duowu Zou Jun Gao Zhaoshen Li | 2011 | Surgery2011，，2： | 1 |
| 18 | Spectroscopic studies of the effect of aerobic conditions on the chemical characteristics of humic acid in landfill leachate and its implication for the environment显示文摘 | CHAI Xiaoli HAO Yongxia LIU Guixiang | 2013 | Chemosphere2013，91，7： | 1 |
| 19 | Magneto-optical effect of TEB30A liquid crystal doped with thulium oxides显示文摘 | Liu Guixiang Jin Xiang | 2014 | Chin Phys B2014，23，04： | 1 |
| 20 | Green and large-scale production of ammonia:Laser-driven pyrolysis of nitrogen-enriched biomass显示文摘As a vital chemical,ammonia(NH3)plays an irreplaceable role in many fields such as chemical synthesis and energy storage.Green renewable biomass can be converted into biofuels,but its nitrogen resources are underused throughout.Laser-driven pyrolysis is envisaged to debuts as a bridge to connect them to realize the direct conversion from nitrogen-rich biomass into ammonia.The pulsed laser-induced local-transient thermal effect recognized the biological nitrogen resources conversion,such as cheap and plentiful yeasts,to small gaseous molecules and achieved spectacular ammonia production rate up to 260.4 mg/h,an order of magnitude higher performance than thermochemical ammonia synthesis.Simultaneously,the tiny hot point generated by a low-energy laser(20W)guarantees the whole ammonia synthesis reaction systemis in amild environment of low temperature and normal pressure.Additionally,the remaining solid residue after laser-driven pyrolysis also can be further exploited as a highly active catalyst for electrocatalytic nitrate reduction reaction(NIRR). | Yue Li Tong Wu Yujie Wang Jiawei Li Wanqiang Yu Guixiang Zhang Bin Chang Lili Zhao Hong Liu Weijia Zhou | 2023 | SusMat2023，3，4： | 1 |
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