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| 1 | Modeling study of regional severe hazes over mid-eastern China in January 2013 and its implications on pollution prevention and control显示文摘The Nested Air Quality Prediction Model System(NAQPMS)was used to investigate the temporal and spatial variations of PM2.5over tropospheric central eastern China in January 2013.The impact of regional transport and its implications on pollution prevention and control were also examined.Comparison between simulated and observed PM2.5showed NAQPMS was able to reproduce the evolution of PM2.5during heavy haze episodes.The results indicated that regional transport of PM2.5played an important role in regional haze episodes in the city cluster including Hebei,Beijing and Tianjin(HBT).The cross-city clusters transport outside HBT and transport among cities inside HBT contributed 20%–35%and 26%–35%of PM2.5as compared with local emission,in HBT respectively.To meet the Air Quality Standards for Grade II,90%,90%and65%of emissions would have to be cut down in Hebei,Tianjin and Beijing,if non-control strategy was taken in the surrounding city clusters of HBT.This implicated that control of emissions in one city cluster is not sufficient to reduce regional haze events,and joint efforts among city clusters are essential.Besides regional transports,two-way feedback between boundary-layer evolution and PM2.5also significantly contributed to the formation of heavy hazes,which contributed 30%of monthly average PM2.5concentration in HBT. | WANG ZiFa LI Jie WANG Zhe YANG WenYi TANG Xiao GE BaoZhu YAN PinZhong ZHU LiLi CHEN XueShun CHEN HuanSheng WAND Wei LI JianJun LIU Bing WANG XiaoYan WAND Wei ZHAO YiLin LU Ning SU DeBin | 2014 | Science China Earth Sciences2014，57，1： | 106 |
| 2 | A novel advanced oxidation process to degrade organic pollutants in wastewater:Microwave-activated persulfate oxidation显示文摘This article,for the first time,provides a novel advanced oxidation process based on sulfate radical(SO4. -) to degrade organic pollutants in wastewater:microwave(MW)-activated persulfate oxidation(APO)with or without active carbon(AC).Azo dye acid Orange 7(AO7)is used as a model compound to investigate the high reactivity of MW-APO.It is found that AO7(up to 1000 mg/L)is completely decolorized within 5-7 min under an 800 W MW furnace assisted-APO.In the presence of chloride ion(up to 0.50 mol/L),the decolorization is still 100%completed,though delayed for about 1-2 min.Experiments are made to examine the enhancement by AC.It is exciting to find that the 100%decolorization of AO7(500 mg/L)is achieved within 3 min by MW-APO using 1.0 g/L AC as catalyst,while the degradation effciency maintains at 50%by MW energy without persulfate after about 5 min.Besides the destruction of visible light chromophore band of AO7(484 nm),during MW-APO,two bands in the ultraviolet region(228 nm and 310 nm)are rapidly broken down.The removal of COD is about 83%-95%for 500 mg/L AO7.SO4. -is identified with quenching studies using specific alcohols.Both SO4. -and.OH could degrade AO7,but SO 4 .-plays the dominant role.In a word,MW-APO AC is a new catalytic combustion technology for destruction of organic contamination even for high concentration. | YANG Shiying WANG Ping YANG Xin WEI Guang ZHANG Wenyi SHAN Liang | 2009 | Journal of Environmental Sciences2009，21，9： | 41 |
| 3 | Soil erosion and its response to the changes of precipitation and vegetation cover on the Loess Plateau显示文摘土壤侵蚀是对我们的陆上的生态系统和一个重要全球环境问题的主要威胁。在中国的黄土高原是承受了在过去的十年温暖并且弄干的更严重的土壤侵蚀和经历的气候的区域之一。命名 Grain-to-Green 节目现在一直在操作超过 10 年了的植被恢复。估计土壤侵蚀的变化和降水和植被恢复的反应在黄土高原上玷污侵蚀是必要的。在学习,修订通用土壤损失方程(RUSLE ) 被使用评估走水路引起侵蚀的年度土壤损失。结果如下出现了。在 2000 和 2010 之间的黄土高原上的土壤侵蚀为 15.2 t hm2 a1 平均并且为价值作为光被描绘不到 25 t hm2 a1。比 25 t hm2 a1 高的严重土壤侵蚀主要在溪谷和多山的区域被散布在中央,西南,并且黄土高原上的地球岩石的多山的区域的一些散布区域。黄土高原上的土壤侵蚀在最近的十年显示出一个死亡趋势并且以率减少了更多在承受严重土壤损失的区域的超过 1 t hm2 a1。得益于改进植被盖子和生态的建设,黄土高原上的土壤侵蚀显著地被拒绝特别在 Yulin 的东方,最在山西省在 Luliang 和 Linfen 府的 Shaanxi 省,和西方 Yanan 府分开在多山并且溪谷区域。植被盖子反应在这些区域玷污侵蚀的变化比降水显示出相对更高的贡献。然而,在在 Gansu 省的 Qingyang 和 Dingxi 府和在 Ningxia Hui 自治区域的 Guyuan 的大多数区域是主要与降水有关。 | SUN Wenyi SHAO Quanqin LIU Jiyuan | 2013 | Journal of Geographical Sciences2013，23，6： | 32 |
| 4 | Moisture distribution in sludges based on different testing methods显示文摘Moisture distributions in municipal sewage sludge, printing and dyeing sludge and paper mill sludge were experimentally studied based on four different methods, i.e., drying test, thermogravimetric-differential thermal analysis (TG-DTA) test, thermogravimetric-differential scanning calorimetry (TG-DSC) test and water activity test. The results indicated that the moistures in the mechanically dewatered sludges were interstitial water, surface water and bound water. The interstitial water accounted for more than 50% wet basis (wb) of the total moisture content. The bond strength of sludge moisture increased with decreasing moisture content, especially when the moisture content was lower than 50% wb. Furthermore, the comparison among the four different testing methods was presented. The drying test was advantaged by its ability to quantify free water, interstitial water, surface water and bound water; while TG-DSC test, TG-DTA test and water activity test were capable of determining the bond strength of moisture in sludge. It was found that the results from TG-DSC and TG-DTA test are more persuasive than water activity test. | Wenyi Deng Xiaodong Li Jianhua Yan Fei Wang Yong Chi Kefa Cen | 2011 | Journal of Environmental Sciences2011，23，5： | 19 |
| 5 | Emission characteristics of dioxins,furans and polycyclic aromatic hydrocarbons during fluidized-bed combustion of sewage sludge显示文摘Pre-dried sewage sludge with high sulfur content was combusted in an electrically heated lab-scale fluidized-bed incinerator. The emission characteristics of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polycyclic aromatic hydrocarbons (PAHs) were studied. Coal and calcium oxide (CaO) were added during the sewage sludge combustion tests to optimize combustion conditions and control SO2 emission. The results indicated that the flue gases emitted during mono-combustion of sewage sludge were characterized by relatively high concentrations of SO2, NOx and organic pollutants, due to the high sulfur, nitrogen, and volatile matter content of sewage sludge. The total 16 USEPA priority PAHs and 2,3,7,8-substituted PCDD/Fs produced from sewage sludge combustion were found to be 106.14 μg/m3 and 8955.93 pg/m3 in the flue gas, respectively. In the case of co- combustion with coal (msludge/mcoal = 1:1), the 16 PAHs and 2,3,7,8-substituted PCDD/Fs concentrations were markedly lower than those found during mono-combustion of sewage sludge. During co-combustion, a suppressant effect of CaO on PCDD/Fs formation was observed. | DENG Wenyi, YAN Jianhua, LI Xiaodong, WANG Fei, CHI Yong, LU ShengyongState Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China. | 2009 | Journal of Environmental Sciences2009，21，12： | 17 |
| 6 | Effects of insoluble Zn,Cd,and EDTA on the growth,activities of antioxidant enzymes and uptake of Zn and Cd in Vetiveria zizanioides显示文摘A root-bag experiment was conducted to study the effects of insoluble Zn,Cd,and ethylenediaminetetraacetic acid(EDTA) on the plant growth,activities of antioxidant enzymes,proline,glutathione(GSH),water-soluble proteins and malondialdehyde(MDA) of Vetiveria zizanioides.The V.zizanioides uptake capacity of Zn and Cd also determined.The results showed that plant growth of V.zizanioides was inhibited by Zn and Cd.The shoot dry weight(SDW) and root dry weight(RDW) decrease by 14.2%,14.1%,17.0% and 17.3%,32.5%,35.7%,respectively,compared to the control without EDTA addition.After adding EDTA,shoot and root dry weight decreased over 10% and 15%,respectively.The toxicity from insoluble Zn and Cd in soil on SDW and RDW of V.zizanioides was in order:Zn+Cd > Cd > Zn.The activities of superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT),and contents of MDA and proline increased significantly,while the contents of GSH and water-soluble proteins decreased markedly with increasing Zn and Cd toxicity.With EDTA,shoot and root Zn concentrations increased in the Zn treatment by 7.3% and 37.4%,and Cd concentrations in the combined Zn and Cd treatment increased by 18.6% and 391.9% compared to the treatment without EDTA.However,Zn and Cd concentrations in shoot and roots decreased in the Cd treatment compared to the plants grown in absence of EDTA,with exception of root Cd concentration in the presence of EDTA. | XU Weihong LI Wenyi HE Jianping Balwant Singh XIONG Zhiting | 2009 | Journal of Environmental Sciences2009，21，2： | 16 |
| 7 | Experimental study on agitated drying characteristics of sewage sludge under the effects of different additive agents显示文摘Drying experiments of dewatered sewage sludge(DSS) were conducted on a agitated paddle dryer, and the effects of additive agents, i.e., CaO, pulverized coal(PC), heavy oil(HO), and dried sludge('DS' through back mixing) on the agitated drying characteristics of DSS were investigated. The results indicated that CaO can significantly increase the drying rate of DSS.The drying rate at CaO/DSS(mass ratio) = 1/100 was 135% higher than that of CaO/DSS = 0.Pulverized coal has no obvious effect on drying rate, but the increase of PC/DSS can promote breaking up of sludge lump. Heavy oil was found to be slightly effective in improving the drying rate of DSS in the examined experimental range of HO/DSS = 0–1/20. It is also found that HO can reduce the torque of the dryer shaft, due to its lubrication effect. Back mixing of DS was found to be effective in alleviating the unfavorable effect of the lumpy phase by improving the mixing effect of the paddle dryer. There was a marked increase of drying rate with an increase of the DS/DSS in the experimental range of DS/DSS = 0–1/3. | Wenyi Deng Yaxin Su | 2014 | Journal of Environmental Sciences2014，26，7： | 12 |
| 8 | Immunomodulatory effects of polysaccharides from edible fungus:a review显示文摘The polysaccharides from edible fungus showed many kinds of biological activities,including anti-tumor,immunomodulatory,anti-inflammatory,anti-diabetes,improving functional constipation activities.In particular,the immunomodulatory effects have been paid more and more attention by scholars,but there was no systematic introduction of their immunomodulatory mechanism.So,this review introduced the immunomodulatory effects and mechanism of edible fungus polysaccharides in recent years,and then the relationships between structure and immunomodulatory effect were also discussed. | Zhenghua Yin Zhenhua Liang Changqin Li Jinmei Wang Changyang Ma Wenyi Kang | 2021 | Food Science and Human Wellness2021，10，4： | 12 |
| 9 | Classification and regionalization of the forming environment of windblown sand disasters along the Tarim Desert Highway显示文摘Through the systematic field survey and observations, the factor quantification as well as setting the criteria, the sand disaster-forming environment along the Tarim Desert Highway can be divided into four grades by the classification and regionalization based on fuzzy mathematics. The length of the regions with significant sand disaster accounted for 37.1% of the total highway length. Particularly, the area along the Tarim Desert Highway, based on the sand disaster-forming environment classification as well as the difference in the five basic landform units along the highway, combined with the difference of wind regime, can be divided into five regions, in which the length of the regions suffering severe sand damage occupied 64.3% of the total highway length. In addition, the index of disaster formation grade along the highway decreased from north to south, showing a repeated spatial pattern in small length scales. | LEI JiaQiang LI ShengYu FAN DongDong ZHOU HongWei GU Feng QIU YongZhi XU Bo LIU Shang DU WenYi YAN ZengHui WANG YongChang | 2008 | Chinese Science Bulletin2008，53，S2： | 11 |
| 10 | A new ecological control method for Pisha sandstone based on hydrophilic polyurethane显示文摘The Pisha sandstone-coverd area is among the regions that suffer from the most severe water loss and soil erosion in China and is the main source of coarse sand for the Yellow River. This study demonstrated a new erosion control method using W-OH solution, a type of hydrophilic polyurethane, to prevent the Pisha sandstone from water erosion. We evaluated the comprehensive effects of W-OH on water erosion resistance and vegetation-growth promotion through simulated scouring tests and field demonstrations on the Ordos Plateau of China. The results of simulated scouring tests show that the water erosion resistance of W-OH treated area was excellent and the cumulative sediment yield reduction reached more than 99%. In the field demonstrations, the vegetation coverage reached approximately 95% in the consolidation-green area, and there was almost no shallow trenches on the entire slope in the treated area. In comparison, the control area experienced severe erosion with deep erosion gullies appeared on the slope and the vegetation coverage was less than 30%. This study illustrated that W-OH treatment can protect the Pisha sandstone from erosion and provide the vegetation seeds a chance to grow. Once the vegetation matured, the effects of consolidation-growth mutual promotion can efficiently and effectively improve the water erosion resistance and ecological restoration. | LINAG Zhishui WU Zhiren Mohammad NOORI YANG Caiqian YAO Wenyi | 2017 | Journal of Arid Land2017，9，5： | 11 |
| 11 | Effects of natural covers on soil evaporation of the shelterbelt along the Tarim Desert Highway显示文摘The control of soil evaporation is one of important approaches to save water. The artificially simulated evaporation experiments have been conducted in the hinterland of the Taklimakan Desert to reveal the effects of the natural covers on the soil evaporation of the Tarim Desert Highway shelterbelt as well as provide some insights in the efficient utilization of water resources and optimization of irrigation systems. The results showed that (1) All the covers, including the sand deposit, the salt crust, the litter, the sand-litter mixed layer and so on, can significantly inhibit the soil water evaporation. Specifically, the daily evaporation, the total evaporation, and the evaporation rate in covered sands were much smaller than that of sands without cover. The cover inhibition effects increased with the cover thickness. Particularly, the soil evaporation of the covered sands was less affected by external and internal factors than that of the bare sands. Moreover, the variation of daily evaporation of covered sands was smaller than that of bare sands. The cumulative evaporation varied linearly with time in the covered sands whereas it varied logarithmically in the bare sands. In addition, the soil evaporation in the bare sands showed significantly different characteristics in the early and late stages of the evaporation. (2) All the covers exhibited the significant inhibiting effect on the soil evaporation, and the inhibition efficiency increased logarithmically with the cover thickness. However, as the cover thickness was above a certain value, the increase in the inhibition efficiency was slow. Particularly, at a cover thickness of 2 cm, there was no obvious difference in the inhibition efficiency among all kinds of covers. The maximum inhibition efficiency as calculated from the daily evaporation on the first day of irrigation was: sand-litter mixed layer (79.92%) > litter layer (78.96%) > salt crust (75.58%) > sand bed (74.11%), whereas the average inhibiting efficiency as calculated from the cumulative soil evaporation at the end of an irrigation cycle (the fourth day) was: salt crust (67.78%) > sand-litter mixed layer (66.72%) > sand deposit (63.28%) > litter layer (61.74%). | ZHOU HongWei LI ShengYu SUN ShuGuo XU XinWen LEI JiaQiang LIU Shang DU WenYi YAN Zeng WANG YongChang | 2008 | Chinese Science Bulletin2008，53，S2： | 11 |
| 12 | Nitrate in shallow groundwater in typical agricultural and forest ecosystems in China,2004-2010显示文摘The nitrate-nitrogen(NO 3-N) concentrations from shallow groundwater wells situated in 29 of the Chinese Ecosystem Research Network field stations,representing typical agroand forest ecosystems,were assessed using monitoring data collected between 2004 and 2010.Results from this assessment permit a national scale assessment of nitrate concentrations in shallow groundwater,and allow linkages between nitrate concentrations in groundwater and broad land use categories to be made.Results indicated that most of the NO 3--N concentrations in groundwater from the agroand forest ecosystems were below the Class 3 drinking water standard stated in the Chinese National Standard:Quality Standard for Ground Water(≤ 20 mg/L).Over the study period,the average NO 3--N concentrations were significantly higher in agro-ecosystems(4.1 ± 0.33 mg/L) than in forest ecosystems(0.5 ± 0.04 mg/L).NO 3-N concentrations were relatively higher(> 10 mg N /L) in 10 of the 43 wells sampled in the agricultural ecosystems.These elevated concentrations occurred mainly in the Ansai,Yucheng,Linze,Fukang,Akesu,and Cele field sites,which were located in arid and semiarid areas where irrigation rates are high.We suggest that improvements in N fertilizer application and irrigation management practices in the arid and semi-arid agricultural ecosystems of China are the key to managing groundwater nitrate concentrations. | Xinyu Zhang Zhiwei Xu Xiaomin Sun Wenyi Dong Deborah Ballantine | 2013 | Journal of Environmental Sciences2013，25，5： | 10 |
| 13 | dentification of TRA2B-DNAH5 fusion as a novel oncogenic driver in human lung squamous cell carcinoma显示文摘 | Fei Li Zhaoyuan Fang Jian Zhang Chen Li Hongyan Liu Jufeng Xia Hongwen Zhu Chenchen auo Zhen Qin Fuming Li Xiangkun Han Yuetong Wang Yan Feng Ye Wang Wenjing Zhang Zuoyun Wang Yujuan Jin Yihua Sun Wenyi Wei Rong Zeng Haiquan Chen Hongbin Ji | 2016 | Cell Research2016，26，10： | 9 |
| 14 | Identifying Influencing Factors for Data Transactions:A Case Study from Shanghai Data Exchange显示文摘In the age of artificial intelligence,firms'internal data are increasingly valuable when merged with each other for inter-firm analysis and predictions.However,the inter-firm data transactions represent a novel challenge on pricing due to the complex nature of data,such as quality information asymmetry,lack of pricing standards,and the negligible marginal cost.This paper conducts a case study at Shanghai Data Exchange to explore the factors that can facilitate the data transactions between buyers and providers.We use interview transcripts from 18 participating firms to construct our three theoretical dimensions:increasing the perceived value,mitigating the cost,and improving the market design.We then browse through 18 factors to assess their value for further improvements.The managerial implications are also discussed. | Qifeng Tang Zhiqing Shao Lihua Huang Wenyi Yin Yifan Dou | 2020 | Journal of Systems Science and Systems Engineering2020，29，6： | 9 |
| 15 | YEATS2 是一个选择 histone crotonylation 读者显示文摘 | Dan Zhao Haipeng Guan Shuai Zhao Wenyi Mi Hong Wen Yuanyuan Li Yingming Zhao C David Allis Xiaobing Shi Haitao Li | 2016 | Cell Research2016，26，5： | 9 |
| 16 | Geological Fluid Mapping in the Tongling Area:Implications for the Paleozoic Submarine Hydrothermal System in the Middle-Lower Yangtze Metallogenic Belt,East China显示文摘The Tongling area is one of the 7 ore-cluster areas in the Middle-Lower Yangtze metallogenic belt,East China,and has tectonically undergone a long-term geologic history from the late Paleozoic continental rifting,through the Middle Triassic continent-continent collision to the Jurassic-Cretaceous intracontinental tectono-magmatic activation.The Carboniferous sedimentary-exhalative processes in the area produced widespread massive sulfides with ages of 303-321 Ma,which partly formed massive pyrite-Cu deposits,but mostly provided significant sulfur and metals to the skarn Cu mineralization associated with the Yanshanian felsic intrusions. To understand the Carboniferous submarine hydrothermal system,an area of about 1046 km^2 was chosen to carry out the geological fluid mapping.Associated with massive sulfide formation,footwall sequences 948 m to 1146m thick,composed of the Lower Silurian-Upper Devonian sandstone,siltstone and thin-layered shale,were widely altered.This hydrothermal alteration is interpreted to reflect large- scale hydrothermal fluid flow associated with the late Paleozoic crustal rifting and subsidence.Three hydrothermal alteration types,i.e.,deep-level semiconformable silicification(S_1),fracture-controlled quartz-sericite-pyrite alteration(S_(2-3)),and upper-level sub-discordant quartz-sericite-chlorite alteration(D_3),were developed to form distinct zones in the mapped area.About 50-m thick semiconformable silicification zones are located at~1-km depth below massive sulfides and developed between an impermeable shale caprock(S_1)and the underlying Ordovician unaltered limestone. Comparisons with modern geothermal systems suggest that the alteration zones record a sub-seafloor aquifer with the most productive hydrothermal fluid flow.Fracture-controlled quartz-sericite-pyrite alteration formed transgressive zones,which downward crosscut the semiconformable alteration zones, and upwards grade into sub-discordant alteration zones that enveloped no economic stringer- stockwork zones beneath massive sulfides.This transgressive zone likely marks an upflow path of high- flux fluids from the hydrothermal aquifer.Lateral zonation of the sub-discordant alteration zones and their relationship to overlying massive sulfide lenses suggest lateral flows and diffusive discharging of the hydrothermal fluids in a permeable sandstone sequence.Three large-sized,14 middle-small massive sulfide deposits,and 40 massive sulfide sites have been mapped in detail.They show regional strata- bound characters and two major styles,i.e.,the layered sheet plus strata-bound stringer-style and the mound-style.Associated exhalite and chemical sedimentary rock suites include(1)anhydrite-barite,(2) jasper-chert,(3)Mg-rich mudstone-pyrite shale,(4)barite lens,(5)siderite-Fe-bearing dolomite,and (6)Mn-rich shale-mudstone,which usually comprise three sulfide-exhalite cyclic units in the area. The spatial distribution of these alteration zones(minerals)and associated massive sulfides and exhalites,and regional variation inδ^(34)S of hydrothermal pyrite and inδ^(18)O-δ^(34)C of hanging wall carbonates,suggest three WNW-extending domains of fluid flow,controlled by the basement faults and syn-depositional faults.Each fluid domain appears to have at least two upflow zones,with estimated even spacing of about 5-8 km in the mapped area.The repeated appearance of sulfide-sulfate or sulfide-carbonate rhythmic units in the area suggests episodically venting of fluids through the upflow conduits by breaking the overlying seals of the hydrothermal aquifer. | HOU Zengqian YANG Zhusen MENG Yifeng ZENG Pusheng LI Hongyang XU Wenyi | 2007 | Acta Geologica Sinica(English Edition)2007，81，5： | 8 |
| 17 | The investigation on particulate organic carbon fluxes with disequilibria between thorium-234 and uranium-238 in the Prydz Bay,the Southern Ocean显示文摘Dissolved and particulate thorium-234, particulate organic carbon in the upper 150 m of water columns from five stations in the Prydz Bay, the Southern Ocean were determined during the 22nd Chinese National Antarctic Research Expedition (from November 2005 to March 2006). The disequilibria between thorium-234 and its parent uranium-238 in upper layer was used to derive the averaged residence time of thorium-234, which decreased along with the latitude to the south and a minimum value, 1~8 d for particulate thorium-234 and 29~48 d for dissolved thorium-234, appeared at the medium latitude station, and the export fluxes of thorium-234 were calculated too and a maximum value, 0.35~0.63 Bq/(m3·d) for the particulate thorium-234 and 0.44~0.65 Bq/(m3·d) for the dissolved thorium-234, appeared at the same station. The export fluxes of particulate organic carbon at different water columns were derived by two methods with irreversible scavenging model, and the averaged values were 104.7 mmol/ (m2·d) (E method) and 120.6 mmol/(m2·d) (B method), respectively, indicating that a relatively high new production would exist in summer in the Prydz Bay where it will play a potential significant role in sequestering the absorption CO2 to deeper ocean. | HE Jianhua MA Hao CHEN Liqi XIANG Baoqiang ZENG Xianzhang YINMingduan ZENG Wenyi | 2008 | Acta Oceanologica Sinica2008，27，2： | 8 |
| 18 | Occurrence and infection risk of waterborne pathogens in Wanzhou watershed of the Three Gorges Reservoir, China显示文摘The Three Gorges Reservoir (TGR), formed by China's Yangtze Three Gorges Project, is the largest lake in the world, but there is too little information available about fecal contamination and waterborne pathogen impacts on this aquatic ecosystem. During two successive 1-year study periods (July 2009 to July 2011), the water quality in Wanzhou watershed of the TGR was tested with regard to the presence of fecal indicators and pathogens. According to Chinese and World Health Organization water quality standards, water quality in the mainstream was good but poor in backwater areas. Salmonella, Enterohemorrhagic Escherichia coli (EHEC), Giardia and Cryptosporidium were detected in the watershed. Prevalence and concentrations of the pathogens in the mainstream were lower than those in backwater areas. The estimated risk of infection with Salmonella, EHEC, Cryptosporidium, and Giardia per exposure event ranged from 2.9 × 10 -7 to 1.68 × 10-5 , 7.04 × 10-10 to 2.36 × 10-7 , 5.39 × 10-6 to 1.25 × 10-4 and 0 to 1.2 × 10-3 , respectively, for occupational divers and recreational swimmers exposed to the waters. The estimated risk of infection at exposure to the 95% upper confidence limit concentrations of Salmonella, Cryptosporidium and Giardia may be up to 2.62 × 10-5 , 2.55 × 10-4 and 2.86 × 10-3 , respectively. This study provides useful information for the residents, health care workers and managers to improve the safety of surface water and reduce the risk of fecal contamination in the TGR. | Guosheng Xiao Zhaodan Wang Ji'an Chen Zhiqun Qiu Yanjie Li Junsheng Qi Wenyi Liu Weiqun Shu | 2013 | Journal of Environmental Sciences2013，25，9： | 7 |
| 19 | Effects of Extrusion Speed on the Microstructure and Mechanical Properties of Mg-9Gd-3Y-1.5Zn-0.8Zr alloy显示文摘The effects of the extrusion speed on the microstructures,mechanical properties and aging hardening behaviors of Mg—9Gd—3Y—1.5Zn—0.8Zr alloy have been investigated.The microstructure evolution during hot extrusion has also been discussed.The microstructures of the extruded alloys mainly consist of the equiaxed dynamically recrystallized grains and fiber-like long period stacking ordered(LPSO)phase.The increasing extrusion speed results in grain coarsening and the mechanical properties deterioration.Meanwhile,it could also retard the aging hardening response.The extrudability of the investigated alloy is limited.Cracks nucleate and grow up rapidly when the extrusion speed is over 0.3 m/min.It should be closely related to the large amount of LPSO phase and the unique microstructure evolution.The rapidly precipitating fine lamella during extrusion could pin the dislocations and grain boundaries effectively.It could strengthen the alloy but also limit the extrudability of the investigated alloy. | Xuan Liu Zhiqiang Zhang Wenyi Hu Qichi Le Lei Bao Jianzhong Cui | 2016 | Journal of Materials Science & Technology2016，32，4： | 7 |
| 20 | Nitrogen-doped graphene supported Pd@PdO core- shell clusters for C-C coupling reactions显示文摘 | Baojiang Jiang Sanzhao Song Jianqiang Wang Ying Xie Wenyi Chu Hongfeng Li Hui Xu Chungui Tian Honggang Fu | 2014 | Nano Research2014，7，9： | 7 |
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