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| 1 | Phosphate removal and recovery through crystallization of hydroxyapatite using xonotlite as seed crystal显示文摘Xonotlite was synthesized and tested for phosphate removal and recovery from synthetic solution in a batch mode. The effects of pH, initial calcium concentration, bicarbonate concentration on phosphate removal through crystallization were examined. The morphology and X-ray diffraction (XRD) pattern of xonotlite before and after crystallization confirmed the formation of crystalline hydroxyapatite. The results indicated that the crystallization product had a very high P content (> 10%), which is comparable to phosphate rock at the dosage of 50-200 mg xonotlite per liter, with a maximum P content of 16.7%. The kinetics of phosphate removal followed the second-order reaction equation. The phosphate removal ability increased with increasing pH. The precipitation of calcium phosphate took place when pH was higher than 7.2, whereas the crystallization occurred at pH 6.0. A high calcium concentration could promote the removal of phosphate via crystallization, while a high bicarbonate concentration also enhanced phosphate removal, through that the pH was increased and thus induced the precipitation process. When xonotlite was used to remove phosphate from wastewater, the removal effciency could reach 91.3% after 24 h reaction, with removal capacity 137 mg/g. The results indicated that xonotlite might be used as an effective crystal seed for the removal and recovery of phosphate from aqueous solution. | CHEN Xuechu, KONG Hainan, WU Deyi, WANG Xinze, LIN Yongyong School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China | 2009 | Journal of Environmental Sciences2009，21，5： | 24 |
| 2 | Epidemiology of urolithiasis in Asia显示文摘In Asia,about 1%-19.1% of the population suffer fromurolithiasis.However,due to variations in socio-economic status and geographic locations,the prevalence and incidence have changed in different countries or regions over the years.The research for risk factors of urinary tract stones is of predominant importance.In this review,we find the prevalence of urolithiasis is 5%-19.1% in West Asia,Southeast Asia,South Asia,aswellas somedevelopedcountries(SouthKorea and Japan),whereas,it is only 1%e8%inmost part of East Asia and North Asia.The recurrence rate ranges from 21% to 53% after 3e5 years.Calciumoxalate(75%-90%)is themost frequent component of calculi,followed by uric acid(5%-20%),calciumphosphate(6%-13%),struvite(2%-15%),apatite(1%)and cystine(0.5%-1%).The incidence of urolithiasis reaches its peak in population agedover 30 years.Males aremore likely to suffer fromurinary calculi.Because of different dietary habits or genetic background,differences of prevalence among races or nationalities also exist.Geneticmutation of specific locus may contribute to the formation of different kinds of calculi.Dietary habits(westernized dietary habits and less fluid intake),as well as climatic factors(hot temperature andmany hours of exposure to sunshine)play a crucial role in the development of stones.Other diseases,especially metabolic syndrome,may also contribute to urinary tract stones. | Yu Liu Yuntian Chen Banghua Liao Deyi Luo Kunjie Wang Hong Li Guohua Zeng | 2018 | Asian Journal of Urology2018，5，4： | 24 |
| 3 | Chemicohydrographic characteristics of the Yellow Sea Cold Water Mass显示文摘Based on the field data obtained during summer cruises in 2006, the overall perspective of chemical and hydrographic characteristics of the Yellow Sea Cold Water Mass(YSCWM) are discussed through the crossYSCWM transect profiles and horizontal distributions of hydrological and chemical variables, with emphasis on the differences between the northern Yellow Sea Cold Water Mass(NYSCWM) and the southern Yellow Sea Cold Water Mass(SYSCWM). The results show that YSCWM is characterized by low temperature(<10°C) and dissolved oxygen(DO) concentration, high salinity(>32.0) and nutrient concentrations. Compared to the SYSCWM, the NYSCWM possesses lower values of temperature, salinity and nutrient concentrations but higher values of DO.Also its smaller variation ranges of variables(except for temperature) demonstrate that NYSCWM is more uniform than that of SYSCWM. In addition, thermocline is more intensive in the SYSCWM than that of NYSCWM.Furthermore, DO and Chl a maxima appear at the depth of 30 m in the SYSCWM, while these phenomena are not obvious in the NYSCWM. | XIN Ming MA Deyi WANG Baodong | 2015 | Acta Oceanologica Sinica2015，34，6： | 10 |
| 4 | Ultrasonic elastic characteristics of five kinds of metamorphic deformed coals under room temperature and pressure conditions显示文摘The calibration of the elastic characteristics of deformed coals is essential for seismic inversion of such units, because the prediction of coal deformation is essential for both mining safety and methane production. Therefore, many samples of broken and mylonitic deformed coal were tested with ultrasonic waves in the laboratory. These samples came from four mining areas: the Huainan, Pingdingshan, Hebi and Jiaozuo coal mines, which present five different metamorphic ranks shown as cylinders striking across circular limits of steel. Under normal pressures and temperatures, ultrasonic P- and S-wave tests show that the velocities, quality factors, and elastic moduli of the deformed coals were greatly reduced compared with undeformed coals. Also, some correlation was found between the P- and S-wave velocities in the deformed coals. However, there is no evidence of linear correlations between velocity and density, velocity and quality factor, or the quality factors of P- and S-waves. Compared with the elastic characteristics of undeformed coals, such as P- and S-wave velocity ratios or Poisson's ratio, those of deformed coals generally decrease and the P-wave quality factors are less than those of S-waves. Moreover, the analysis of the relationship between pore structure and elastic modulus shows a better correlation between the P- and S-wave velocities and effective porosity, pore volume and specific surface area. Also, there are similar relationships between the pore structure and the Young's and shear moduli. However, there are no such correlations with other moduli. Correlations between these elastic moduli, pore structure, coal rank and density were not found for the various samples of deformed coals, which is consistent with only structural destruction occurring in the deformed coals with other physical properties remaining unchanged. The experimental results show that it is possible to predict the deformation of coals with multi-component seismic elastic inversion. | WANG Yun XU XiaoKai YANG DeYi | 2014 | Science China Earth Sciences2014，57，9： | 8 |
| 5 | Structural and biochemical mechanism for increased infectivity and immune evasion of Omicron BA.2 variant compared to BA.1 and their possible mouse origins显示文摘The Omicron BA.2 variant has become a dominant infective strain worldwide.Receptor binding studies show that the Omicron BA.2 spike trimer exhibits 11-fold and 2-fold higher potency in binding to human ACE2 than the spike trimer from the wildtype(WT)and Omicron BA.1 strains.The structure of the BA.2 spike trimer complexed with human ACE2 reveals that all three receptor-binding domains(RBDs)in the spike trimer are in open conformation,ready for ACE2 binding,thus providing a basis for the increased infectivity of the BA.2 strain.JMB2002,a therapeutic antibody that was shown to efficiently inhibit Omicron BA.1,also shows potent neutralization activities against Omicron BA.2.In addition,both BA.1 and BA.2 spike trimers are able to bind to mouse ACE2 with high potency.In contrast,the WT spike trimer binds well to cat ACE2 but not to mouse ACE2.The structures of both BA.1 and BA.2 spike trimer bound to mouse ACE2 reveal the basis for their high affinity interactions.Together,these results suggest a possible evolution pathway for Omicron BA.1 and BA.2 variants via a human-cat-mouse-human circle,which could have important implications in establishing an effective strategy for combating SARS-CoV-2 viral infections. | Youwei Xu Canrong Wu Xiaodan Cao Chunyin Gu Heng Liu Meriting Jiang Xiaoxi Wang Qingning Yuan Kai Wu Jia Liu Deyi Wang Xianqing He Xueping Wang Su-Jun Deng H.Eric Xu Wanchao Yin | 2022 | Cell Research2022，32，7： | 6 |
| 6 | Identifying different community members in complex networks based on topology potential显示文摘 | Yanni Han (1) hyn@nlsde.buaa.edu.cn Deyi Li (12) Teng Wang (1) | 2011 | Frontiers of Computer Science2011，5，1： | 4 |
| 7 | Ship collision impact on the structural load of an offshore wind turbine显示文摘When a maintenance and operations ship is berthing,there is a chance the ship may collide into the wind turbine.When these ships collide into wind turbine structures,this can result in significant changes to the foundation and structure of the wind turbine.In this paper,the structural load of a 4 MW offshore wind turbine was analyzed during a collision with an operations and maintenance ship.The variations in the wind speeds on hub height,waves,and the sea currents were measured.The dynamic simulation of the wind turbine was carried out using the test data as the input parameters.As a result,the load condition of the turbine without a collision was obtained.Finally,the measured turbine load was compared with the simulation results.This study shows that the collision of the operation and the maintenance ship increases the bending moments at the tower’s bottom and the blade’s roots. | Haikun Jia Shiyao Qin Ruiming Wang Yang Xue Deyi Fu Anqing Wang | 2020 | Global Energy Interconnection2020，3，1： | 4 |
| 8 | Treatability of volatile chlorinated hydrocarbon-contaminated soils of different textures along a vertical profile by mechanical soil aeration:A laboratory test显示文摘Mechanical soil aeration is a simple, effective, and low-cost soil remediation technology that is suitable for sites contaminated with volatile chlorinated hydrocarbons(VCHs). Conventionally, this technique is used to treat the mixed soil of a site without considering the diversity and treatability of different soils within the site. A laboratory test was conducted to evaluate the effectiveness of mechanical soil aeration for remediating soils of different textures(silty,clayey, and sandy soils) along a vertical profile at an abandoned chloro-alkali chemical site in China. The collected soils were artificially contaminated with chloroform(TCM) and trichloroethylene(TCE). Mechanical soil aeration was effective for remediating VCHs(removal efficiency > 98%). The volatilization process was described by an exponential kinetic function.In the early stage of treatment(0–7 hr), rapid contaminant volatilization followed a pseudofirst order kinetic model. VCH concentrations decreased to low levels and showed a tailing phenomenon with very slow contaminant release after 8 hr. Compared with silty and sandy soils, clayey soil has high organic-matter content, a large specific surface area, a high clay fraction, and a complex pore structure. These characteristics substantially influenced the removal process, making it less efficient, more time consuming, and consequently more expensive. Our findings provide a potential basis for optimizing soil remediation strategy in a cost-effective manner. | Yan Ma Yi Shi Deyi Hou Xi Zhang Jiaqi Chen Zhifen Wang Zhu Xu Fasheng Li Xiaoming Du | 2017 | Journal of Environmental Sciences2017，29，4： | 3 |
| 9 | Mineralogy and geochemistry of a superhigh-organic-sulfur coal, Yanshan Coalfield, Yunnan, China: Evidence for a volcanic ash component and influence by submarine exhalation显示文摘 | Shifeng Dai Deyi Ren Yiping Zhou Chen-Lin Chou Xibo Wang Lei Zhao Xingwei Zhu | 2008 | Chemical Geology2008，，1： | 3 |
| 10 | Experimental study on the deformation behaviour,energy evolution law and failure mechanism of tectonic coal subjected to cyclic loads显示文摘Compared to intact coal,tectonic coal exhibits unique characteristics.The deformation behaviours under cyclic loading with different confining pressures and loading rates are monitored by MTS815 test system,and the mechanical and energy properties are analysed using experimental data.The results show that the stress-strain curve could be divided into four stages in a single cycle.The elastic strain and elastic energy density increase linearly with deviatoric stress and are proportional to the confining pressure and loading rate;irreversible strain and dissipated energy density increase exponentially with deviatoric stress,inversely proportional to the confining pressure and loading rate.The internal structure of tectonic coal is divided into three types,all of which are damaged under different deviatoric stress levels,thereby explaining the segmentation phenomenon of stress-strain curve of tectonic coal in the cyclic loading process.Tectonic coal exhibits nonlinear energy storage characteristics,which verifies why the tectonic coal is prone to coal and gas outburst from the principle of energy dissipation.In addition,the damage mechanism of tectonic coal is described from the point of energy distribution by introducing the concepts of crushing energy and friction energy. | Deyi Gao Shuxun Sang Shiqi Liu Jian Wu Jishi Geng Wang Tao Tengmin Sun | 2022 | International Journal of Mining Science and Technology2022，32，6： | 3 |
| 11 | Synchrotron radiation XRF microprobe investigation of elemental distribution in femoral head slice with osteoporosis显示文摘This note deals with the scanning of femoral head slices from both normal and osteoporosis subjects using synchrotron radiation X-ray fluorescence (SRXRF) microprobe technique. The sample preparation and experimental apparatus are described in detail. The quantitative computerized tomography (QCT) of elemental distribution, such as Ca, P, K, Fe, Zn, Sr and Pb in bone slice tissue including cartilage, substantial compact and substantial spongy, is investigated. Combined with the correlation between P, K, Zn, Sr and Ca, the loss way of minerals and the physiological functions of some metal elements in bone are also discussed. | ZHANG Yuanxun CHENG Feng LI Deyi WANG Yinsong ZHANG Guilin XU Hongjie LIAO Wensheng TANG Tingling HUANG Yuying HE Wei | 2001 | Chinese Science Bulletin2001，46，13： | 3 |
| 12 | Use of zeolitized coal fly ash in the simultaneous removal of ammonium and phosphate from aqueous solution显示文摘Discharge of wastewater containing nitrogen and phosphate can cause eutrophication.Therefore,the development of an efficient material for the immobilization of the nutrients is important.In this study,a low calcium fly ash and high calcium fly ash were converted into zeolite using the hydrothermal method.The removal of ammonium and phosphate that coexist in aqueous solution by the synthesized zeolites were studied.The results showed that zeolitized fly ash could efficiently eliminate ammonium and phosphate at the same time.Saturation of zeolite with Ca^(2+)rather than Na+favored the removal of both ammonium and phosphate because the cation exchange reaction by the NH_(4)^(+)resulted in the release of Ca2+into the solution and precipitation of Ca^(2+)with PO_(4)^(3−)followed.An increase in the temperature elevated the immobilization of phosphate whereas it abated the removal of ammonium.Nearly 60%removal efficiency for ammonium was achieved in the neutral pH range from 5.5 to 10.5,while the increase or decrease in pH out of the neutral range lowered the adsorption.In contrast,the removal of phosphate approached 100%at a pH lower than 5.0 or higher than 9.0,and less phosphate was immobilized at neutral pH.However,there was still a narrow pH range from 9.0 to 10.5 favoring the removal of both ammonium and phosphate.It was concluded that the removal of ammonium was caused by cation exchange;the contribution of NH3 volatilization to immobilization at alkaline conditions(up to pH level of 11.4)was limited.With respect to phosphate immobilization,the mechanism was mainly the formation of precipitate as Ca_(3)(PO_(4))_(2) within the basic pH range or as FePO_(4) and AlPO_(4) within acidic pH range. | WU Deyi HU Zhanbo WANG Xinze HE Shengbing KONG Hainan | 2007 | Frontiers of Environmental Science & Engineering2007，1，2： | 2 |
| 13 | Synthesis of organo-modified a-zirconium phosphate and its effect on the flame retardancy of IFR poly(lactic acid) systems 显示文摘 | Liu Xueqi Wang Deyi Wang Xiuli | 2011 | Polymer Degradation and Stability2011，96，： | 1 |
| 14 | Synthesis of Or- gano-modified A-Zirconium Phosphate and Its Effect on the Flame Retardancy of IFR Poly(lactic acid) Systems显示文摘 | Liu Xueqi Wang Deyi Wang Xiuli | 2011 | Polymer Degradation and Stability2011，96，5： | 1 |
| 15 | A novel intumescent flame retardant system containing metal chelates for polyvinyl alcohol显示文摘 | Delong Wang Ya Liu Deyi Wang Chunxia Zhao Yurong Mou Yu-Zhong Wang | 2007 | Polymer Degradation and Stability2007，，5： | 1 |
| 16 | Fire retar- dancy of a reactively extruded intumescent flame retardant po- lyethylene system enhanced by metal chelates显示文摘 | WANG Deyi LIU yun WANG Yuzhong | 2007 | Polym Degrad Stab2007，92，8： | 1 |
| 17 | An S- and P-contaning Flame Retardant for Polypropylene显示文摘 | Huaqiao Peng Deyi Wang Yuzhong Wang | 2008 | Chinese Journal of Polymer Science2008，26，6： | 1 |
| 18 | Implementation of LTE TDD uplink transhrmation deprecoding based on DSP 显示文摘 | LI Xiaowen PENG Deyi WANG Dan | 2012 | Journal of Chongqing University of Posts and Telecommunications: Natural Science Edition2012，24，2： | 1 |
| 19 | A novel intumescent flame-retardant LDPE system and its thermo-oxidative degradation and flame-retardant mechanisms显示文摘 | LIU Yun WANG Deyi | 2008 | Polym Adv Technol2008，19，11： | 1 |
| 20 | Mineralogical and compositional characteristics of Late Permian coals from an area of high lung cancer rate in Xuan Wei, Yunnan, China: Occurrence and origin of quartz and chamosite显示文摘 | Shifeng Dai Linwei Tian Chen-Lin Chou Yiping Zhou Mingquan Zhang Lei Zhao Jumin Wang Zong Yang Hongzhi Cao Deyi Ren | 2008 | International Journal of Coal Geology2008，，4： | 1 |
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