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| 1 | Coagulation of micro-polluted Pearl River water with IPF-PACls显示文摘Water samples collected from early March 2001 to the end of April 2002 at the branch of Pearl River around the Guangzhou City were analyzed for its micro-polluted characteristics. The coagulation behavior of polyaluminum chlorides(PACls) was then examined focusing on the effect of primary water quality and speciation distribution. The results showed that PACls exhibit better coagulation efficiency than alum in accordance with the different speciation. The turbidity removal property of PACls is evidently better than alum at low dosage. While in neutral zone(about 6.5—7.5), the turbidity removal of PACls decreases owing to the restabilization of particles at higher dosage. The organic matters in raw water exhibit marked influence on coagulation. In acidic zone, organic matters complex with polymer species and promote the formation of flocs. With an increase in pH, the complexation of organics with polymer species gradually decreases, and the removal of organics mainly depends on adsorption. The effect is evidently improved with the raise of B value. | XUYi SUNWei WANGDong-sheng TANGHong-xiao | 2004 | Journal of Environmental Sciences2004,16,4: | 9 |
| 2 | Biogenic VOCs emission inventory development of temperate grassland vegetation in Xilin River Basin, Inner Mongolia, China显示文摘Given the key role of biogenic volatile organic compounds(VOCs) to tropospheric chemistry and regional air quality, it is important to generate accurate VOCs emission inventories. However, only a less fraction of plant species, in temperate grassland of Inner Mongolia, has been characterized by quantitative measurements. A taxonomic methodology, which assigns VOCs measurements to unmeasured species, is an applicable and inexpensive alternation for extensive VOCs emission survey, although data are needed for additional plant families and genera to further validate the taxonomic approach in grassland vegetation. In this experiment, VOCs emission rates of 178 plant species were measured with a portable photoionization detector(PID). The results showed the most of genera and some families have consistent feature of their VOCs emission, especially for isoprene, and provide the basic premise of taxonomic methodology to develop VOCs emission inventories for temperate grassland. Then, the taxonomic methodology was introduced into assigning emission rate to other 96 species, which no measured emission rates available here. A systematical emission inventory of temperate grassland vegetation in Inner Mongolia was provided and further evidence that taxonomy relationship can serve as a useful guide for generalizing the emissions behavior of many, but not all, plant families and genera to grassland vegetation. | HENian-peng HANXing-guo SUNWei PanQing-min | 2004 | Journal of Environmental Sciences2004,16,6: | 6 |
| 3 | Studies on the Recognition Interaction of Rhodamine B and DNA by Voltammetry显示文摘The recognition interaction of Rhodamine B(RB) with DNA was studied in a Britton-Robinson (B-R) buffer solution with pH=7.5 at a glassy carbon electrode by electrochemical techniques. RB shows an irreversible oxidation peak at +0.92 V(vs. SCE). After the addition of DNA in the RB solution, the peak current of RB decreased apparently without the shift of the peak potential. The electrochemical parameters such as the charge transfer coefficient α and the electrode reaction rate constant k s of the interaction system were carefully studied. The parameters did not change before and after the addition of DNA, which indicated that an electrochemical non-active complex had been formed, so the concentration of RB in the solution decreased and the peak current decreased correspondingly. The binding ratio of RB to DNA was 2∶1 with a binding constant of 2.66×10 9. | JIAOKui LIQing-jun SUNWei WANGZhen-yong | 2005 | Chemical Research in Chinese Universities2005,21,2: | 4 |
| 4 | Experimental Research on the Low Frequency Wave That Radiates into the Air before the Failure of Rock显示文摘Experiments on sonic transmission show that a slabstone can directly transmit part of the energy of a wave excited by knocking or by a transducer into the air. The other part of the wave energy can generate the normal mode of vibration on the slabstone and excite measurable acoustic signals in the air. The dominant frequency is related to the size of the slabstone. These results indicate that the acoustic emission (AE) in rock also displays similar behavior if the source is shallow. It is demonstrated that with the nucleation and propagation of cracks, the dominant frequency of the radiated wave will be lower. When the frequency becomes very low, the wave can be transmitted through the rock into the air and be received by a microphone. According to the theory of similarity of size, there will be low-frequency waves before strong earthquakes because of nucleation of cracks, which can be received by special low-frequency transducers or infrasonic detectors. Before earthquakes, the mechanism of precursors could be very complicated. They might be produced by plastic creep or attributed to liquids but not brittle fracture in most cases. So the periods of the produced waves will be longer. This perhaps accounts for the lack of foreshocks before many strong earthquakes. | LiShiyu TangLinbo HeXuesong SuFang SunWei LiuJianxin | 2005 | Earthquake Research in China2005,19,1: | 4 |
| 5 | Multi-Volume CAD Modeling for Heterogeneous ObjectDesign and Fabrication显示文摘1IntroductionWiththeadvancementofdesignandmanufacturingtechnology,theutilizationofintegratedComputer--AidedDesign/Computer-AidedEngineering/Computer-AidedManufacturing,i.e.,CAD/CAE/CAMandrapidprototyping,andtheincorporationofconcurrentengineeringillt... | SUN Wei(Department of Mechanical Engineering and MechanicsDrexel University, Philadelphia, PA 19104, U.S.A.)E-mail: sunwei@drexel.edu or rpdc@drexel.edu | 2000 | Journal of Computer Science & Technology2000,15,1: | 3 |
| 6 | Multivariate Statistic Analysis of Morphology and Ecology Characters on Some Sheep Populations in China显示文摘The sheep populations were studied with Q-type Hierarchical Clustering Method, and characters of the populations were used to construct the principal component, then, the principal component values were analyzed with R-type Hierarchical Clustering Method, which might display the genetic differentiation among populations and conform to the result of the known sheep phylogenetic system in China. Characters of the populations were studied with Q-type Hierarchical Clustering Method. The elevation and average annual rainfall were found to be important characters. The ecology factor is also an important character for the breed classification. | SUNWei CHANGHong RENZhan-jun YANGZhang-ping GENGRong-qing LUSheng-xia DULei TsunodaKenji | 2003 | Agricultural Sciences in China2003,2,11: | 3 |
| 7 | Electrochemical Determination of Alkaline Phosphatase in Human Serum by Differential Pulse Voltammetry显示文摘Differential pulse voltammetry(DPV) was applied to the determination of alkaline phosphatase(ALP) activity in human serum with phenyl phosphate as the substrate. Phenyl phosphate can enzymatically be hydrolyzed to produce phenol which is quantified by DPV at +660 mV(vs.Ag/AgCl) in the concentration range of 2.0100 μmol/L. The standard curve for ALP is linear over the range from 0.06 to 1000 U/L with a relative standard deviation of 3.0%. The conditions for the enzymatic reaction and voltammetric detection were optimized and the kinetic constants were also examined.The human serum samples were tested by this method and the results were in good agreement with those obtained by the routine p-nitrophenyl phosphate spectrophotometric method. | SUNWei JIAOKui WANGHai-yu LULu-de | 2004 | Chemical Research in Chinese Universities2004,20,6: | 1 |
| 8 | Elevated immunoreactivity to tissue factor and its association with dysmenorrhea severity and tb, e amount of menses in adenomyosis显示文摘 | Xishi L Jichan N Sunwei G | 2011 | Hum Reprod2011,26,2: | 1 |
| 9 | 显示文摘 | ZHANGMu Xin(张沐新) LIUYin Yan(刘银燕) SUNWei(孙薇) YANGXiao-Hong(杨晓虹) WANGGuang-Shu(王广树) | | 高等学校化学学报0,,: | 1 |
| 10 | 显示文摘 | Zhang Yunsheng SunWei Sha Jianfang | 2002 | Architecture Technology2002,34,2: | 1 |
| 11 | Measurementandanalysisofdefectsinhigh-performanceconcretewiththree-dimensionalmicrocomputertomography显示文摘 | GuoLiping CappinteriA SunWei etal | 2009 | JournalofSoutheastUniversity2009,25,1: | 1 |
| 12 | Recurrence of endometriosis and its control 显示文摘 | Guo Sunwei | 2009 | Hu- man Reproduction Update2009,15,4: | 1 |
| 13 | Elevated immunoreaetivity to tissue factor and its association with dysmenorrhea severity and the amoum of menses in adenomyosis 显示文摘 | Xishi L Jiehan N Sunwei G | 2011 | Hum Reprod2011,26,2: | 1 |
| 14 | The existence of positive solutions for a class of nonlinear boundary value problem显示文摘 | Sunwei Ping Gewei Gao | 2001 | Acta Math Sinica2001,4,: | 1 |
| 15 | 显示文摘 | SUNWei HUDe-yu WUZhi-bing etal(孙伟 胡德禹 吴志兵 等) | 2011 | 有机化学2011,31,7: | 1 |
| 16 | Dysmenorrhea and its severity are associated with increased uterine contractility and overexpression of oxytocin receptor(OTR)in women with symptomatic adenomyosis显示文摘 | GUO Sunwei MAO Xiaoyan MA Qingliang | 2013 | Fertility and Sterility2013,99,1: | 1 |
| 17 | Data Hiding and Security for XMLDatabase: A TRBAC-Based Approach显示文摘In order to cope with varying protection granularity levels of XML (eXtensible Markup Language) documents, we propose a TXAC (Two-level XML Access Control) framework, in which an extended TRBAC (Temporal Role-Based Access Control) approach is proposed to deal with the dynamic XML data. With different system components, TXAC algorithm evaluates access requests efficiently by appropriate access control policy in dynamic web environment. The method is a flexible and powerful security system offering a multi-level access control solution. | ZHANGWan-song SUNWei LIUDa-xin | 2005 | Wuhan University Journal of Natural Sciences2005,10,1: | 1 |
| 18 | Nanostructured silver catalyzed nickel foam cathode for an aluminum-hydrogen peroxide fuel cell 显示文摘 | Yang Wei Qian(杨维谦) Yang Shao Hua(杨少华) SunWei(孙伟) | 2006 | J Power Sources2006,160,2: | 1 |
| 19 | PreparationandpropertiesofhighductilitycementitiouscompositeswithhighcontentofflyGash显示文摘 | PangChaoming LeungCKY SunWei | 2009 | JournaloftheChineseCeramGicSociety2009,37,12: | 1 |
| 20 | Simulation Experiment of Rolling Square Billet with Liquid Core Using Four-Stand Continuous Rolling Mill显示文摘 | LIChun-fu HULin GUANJi-feng SUNWei | 2004 | Journal of Iron and Steel Research(International)2004,11,5: | 0 |