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| 1 | Investigation of heavy metal partitioning influenced by flue gas moisture and chlorine content during waste incineration显示文摘The impact of moisture on the partitioning of the heavy metals including Pb,Zn,Cu and Cd in municipal solid waste (MSW) was studied in a laboratory tubular furnace.A thermodynamic investigation using CHEMKIN software was performed to compare the experimental results.Simulated waste,representative of typical MSW with and without chlorine compounds,was burned at the background temperature of 700 and 950°C,respectively.In the absence of chlorine,the moisture content has no evident effect on the volatility of Pb,Zn and Cu at either 700 or 950°C,however,as flue gas moisture increasing the Cd distribution in the bottom ash increased at 700°C and reduced at 950°C,respectively.In the presence of chlorine,the flue gas moisture reduced the volatility of Pb,Zn and Cu due to the transformation of the more volatile metal chlorides into less volatile metal oxides,and the reduction became significant as chlorine content increase.For Cd,the chlorine promotes its volatility through the formation of more volatile CdCl 2.As a result,the increased moisture content increases the Pb,Zn,Cu and Cd concentrations in the bottom ash,which limits the utilization of the bottom ash as a construction material.Therefore,in order to accumulate heavy metals into the fly ash,MSW should be dried before incineration. | Qinghai Li,Aihong Meng,Jinyan Jia,Yanguo Zhang Department of Thermal Engineering,Key Laboratory for Thermal Science and Power Engineering of the Ministry of Education of China,Tsinghua University,Beijing 100084,China. | 2010 | Journal of Environmental Sciences2010，22，5： | 24 |
| 2 | Certificateless Public Key Encryption with Keyword Search显示文摘Public Key Encryption with Keyword Search(PEKS),an indispensable part of searchable encryption,is stock-intrade for both protecting data and providing operability of encrypted data.So far most of PEKS schemes have been established on Identity-Based Cryptography(IBC) with key escrow problem inherently.Such problem severely restricts the promotion of IBC-based Public Key Infrastructure including PEKS component.Hence,Certificateless Public Key Cryptography(CLPKC) is efficient to remove such problem.CLPKC is introduced into PEKS,and a general model of Certificate/ess PEKS(CLPEKS) is formalized.In addition,a practical CLPEKS scheme is constructed with security and efficiency analyses.The proposal is secure channel free,and semantically secure against adaptive chosen keyword attack and keyword guessing attack.To illustrate the superiority,massive experiments are conducted on Enron Email dataset which is famous in information retrieval field.Compared with existed constructions,CLPEKS improves the efficiency in theory and removes the key escrow problem. | PENG Yanguo CUI Jiangtao PENG Changgen YING Zuobin | 2014 | China Communications2014，11，11： | 21 |
| 3 | Water demand forecasting of Beijing using the Time Series Forecasting Method显示文摘建立水资源利用并且利用计划是必要的,它主要基于认出并且预报水讲道理地并且科学地消费了结构。在过去的 30 年(19802009 ) 期间,分别地,当全部的水消费历史上在一样的时期期间到达了尖顶时,吝啬的年度降水和北京的全部的水资源与那些长期的价值相比在 6.89% 和 31.37% 减少了。因此,它具有为在社会经济的开发和环境开发之间的和谐的大意义。把消费的水的水消费,农业、工业、国内、环境的水消费,和进化组织的总数基于分析,全部的水消费和水的进化的进一步的驱动力消费了结构系统地被揭示。预言和讨论为全部的水消费的进化被完成,水在不久的将来用时间系列预报北京消费了水资源的结构,和供应要求状况方法。这份报纸的努力的目的是为在 socio 经济和水资源之间的和谐开发提供科学基础,为水资源的合理战略计划的建立,并且为有科学的库的北京的社会持续开发。 | ZHAI Yuanzheng | 2012 | Journal of Geographical Sciences2012，22，5： | 15 |
| 4 | Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event. | TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou | 2018 | Science China(Physics,Mechanics & Astronomy)2018，61，3： | 12 |
| 5 | The High Energy X-ray telescope (HE) onboard the Insight-HXMT astronomy satellite显示文摘The Insight-Hard X-ray Modulation Telescope(Insight-HXMT) is a broadband X-ray and γ-ray(1-3000 ke V) astronomy satellite. One of its three main telescopes is the High Energy X-ray telescope(HE). The main detector plane of HE comprises 18 Na I(Tl)/Cs I(Na) phoswich detectors, where Na I(Tl) is used as the primary detector to measure ~ 20-250 ke V photons incident from the field of view(FOV) defined by collimators, and Cs I(Na) is used as the active shielding detector to Na I(Tl) by pulse shape discrimination. Additionally, Cs I(Na) is used as an omnidirectional γ-ray monitor. The HE collimators have a diverse FOV,i.e. 1.1°×5.7°(15 units), 5.7°×5.7°(2 units), and blocked(1 unit). Therefore, the combined FOV of HE is approximately5.7°×5.7°. Each HE detector has a diameter of 190 mm resulting in a total geometrical area of approximately 5100 cm2, and the energy resolution is ~15% at 60 ke V. For each recorded X-ray event by HE, the timing accuracy is less than 10 μs and the deadtime is less than 10 μs. HE is used for observing spectra and temporal variability of X-ray sources in the 20-250 ke V band either by pointing observations for known sources or scanning observations to unveil new sources. Additionally, HE is used for monitoring the γ-ray burst in 0.2-3 Me V band. This paper not only presents the design and performance of HE instruments but also reports results of the on-ground calibration experiments. | CongZhan Liu YiFei Zhang XuFang Li XueFeng Lu Zhi Chang ZhengWei Li AiMei Zhang YongJie Jin HuiMing Yu Zhao Zhang MinXue Fu YiBao Chen JianFeng Ji YuPeng Xu JingKang Deng RenCheng Shang GuoQing Liu FangJun Lu ShuangNan Zhang YongWei Dong TiPei Li Mei Wu YanGuo Li HuanYu Wang BoBing Wu YongJie Zhang Zhi Zhang ShaoLin Xiong Yuan Liu Shu Zhang HongWei Liu YiJung Yang Fan Zhang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 9 |
| 6 | Shear wave velocity-based liquefaction evaluation in the great Wenchuan earthquake: a preliminary case study显示文摘The great Wenchuan earthquake(Ms = 8.0) in 2008 caused severe damage in the western part of the Chengdu Plain.Soil liquefaction was one of the major causes of damage in the plain areas,and proper evaluation of liquefaction potential is important in the defi nition of the seismic hazard facing a given region and post-earthquake reconstruction.In this paper,a simplifi ed procedure is proposed for liquefaction assessment of sandy deposits using shear wave velocity(Vs),and soil liquefaction from the Banqiao School site was preliminarily investigated after the earthquake.Boreholes were made at the site and shear wave velocities were measured both by SASW and down-hole methods.Based on the in-situ soil information and Vs profi les,the liquefaction potential of this site was evaluated.The results are reasonably consistent with the actual fi eld behavior observed after the earthquake,indicating that the proposed procedure is effective.The possible effects of gravel and fi nes contents on liquefaction of sandy soils were also brie? y discussed. | Zhou Yanguo,Chen Yunmin and Ling Daosheng MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering,Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310058,China Assistant Professor Professor | 2009 | Earthquake Engineering and Engineering Vibration2009，8，2： | 9 |
| 7 | Research on the ecological risk of heavy metals in the soil around a Pb–Zn mine in the Huize County, China显示文摘The soil pollution by heavy metals was characterized in the mine tailings and surrounding soils of an old Pb–Zn mine in Huize County. Three hundred and ninety-six samples of agricultural and non-agricultural soil were analyzed for the total metal concentration by acid digestion and sixty-eight selected soil samples were used to determine the chemical fractionation of heavy metals with the modified BCR sequential extraction method. The pollution index of the heavy metals indices for As, Cd, Cr, Cu,Hg, Pb and Zn of non-agricultural soil and agricultural soils in the study area indicated the spreading of heavy metal pollution. Sequential extraction showed that most of Cd existed in an exchangeable form(31.2 %). The available content of Pb, Cu and Zn was mainly distributed in acid extractable fractions and Fe/Mn oxide fractions(27.9, 30 and 27.2 %), and Hg, As and Cr were mainly associated with residual fractions(90.4, 72.9 and 76.8 %). The risks of heavy metals were also evaluated by the risk assessment code(RAC) and potential ecological risk index, respectively. The results of RAC showed a medium and high risk of Cd(45.6 and 54.4 %), medium risk of Zn(100 %), low and medium risk of Cu(41.2 and 58.8 %), largely no risk of Hg(97.1 %), and mainly low risk of As and Pb(92.6and 91.8 %). The range of the potential ecological risk of soil was 58.2–1839.3, revealing a considerably high ecological risk in the study area, most likely related to acid mine drainage and the mining complexes located in the area. The results can be used during the ecological risk screening stage, in conjunction with the total concentrations and metal fractionation values, to better estimate ecological risk. | Sijin Lu Yanguo Teng Yeyao Wang Jing Wu Jinsheng Wang | 2015 | Chinese Journal Of Geochemistry2015，34，4： | 8 |
| 8 | Shear wave velocity-based evaluation and design of stone column improved ground for liquefaction mitigation显示文摘The evaluation and design of stone column improvement ground for liquefaction mitigation is a challenging issue for the state of practice. In this paper, a shear wave velocity-based approach is proposed based on the well-defined correlations of liquefaction resistance(CRR)-shear wave velocity(V_s)-void ratio(e) of sandy soils, and the values of parameters in this approach are recommended for preliminary design purpose when site specific values are not available. The detailed procedures of pre-and post-improvement liquefaction evaluations and stone column design are given. According to this approach, the required level of ground improvement will be met once the target V_s of soil is raised high enough(i.e., no less than the critical velocity) to resist the given earthquake loading according to the CRR-V_s relationship, and then this requirement is transferred to the control of target void ratio(i.e., the critical e) according to the V_s-e relationship. As this approach relies on the densification of the surrounding soil instead of the whole improved ground and is conservative by nature, specific considerations of the densification mechanism and effect are given, and the effects of drainage and reinforcement of stone columns are also discussed. A case study of a thermal power plant in Indonesia is introduced, where the effectiveness of stone column improved ground was evaluated by the proposed V_s-based method and compared with the SPT-based evaluation. This improved ground performed well and experienced no liquefaction during subsequent strong earthquakes. | Zhou Yanguo Sun Zhengbo Chen Jie Chen Yunmin Chen Renpeng | 2017 | Earthquake Engineering and Engineering Vibration2017，16，2： | 7 |
| 9 | Corrosion behavior of bulk metallic glasses in different aqueous solutions显示文摘The corrosion behavior of as-cast fully amorphous, structural relaxed amorphous and crystallized Fe65.5Cr4Mo4Ga4P12C5B5.5 bulk metallic glasses (BMGs) in NaCl, HCl and NaOH solutions was investigated by electrochemical polarization and immersion methods. X-ray photoelectron spectroscopy measurements was used to analyze the changes of the elements on the alloy surface before and after immersion in various solutions. The corrosion resistance of the Fe65.5Cr4Mo4Ga4P12C5B5.5 BMG was better than its structural relaxation/crystallization counterparts and common alloys (such as stainless steel, carbonized steel, and steel) in the selected aqueous solutions. The high corrosion resistance of this alloy in corrosive solutions leads to the formation of Fe-, Cr- and Mo-enriched protective thin surface films. | LI Gong, HUANG Lei, DONG YanGuo, HE GuoWei, QI Li, JING Qin, MA MingZhen & LIU RiPing State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，3： | 6 |
| 10 | SVOM gamma ray monitor显示文摘The space-based multi-band astronomical Variable Object Monitor(SVOM) mission is dedicated to the detection,localization and broad-band study of gamma-ray bursts(GRBs) and other high-energy transient phenomena.The gamma ray monitor(GRM) onboard is designed to observe GRBs up to 5 MeV.With this instrument,one of the key GRB parameters,Epeak,can be easily measured in the hard X-ray band.It can achieve a detection rate of 100 GRBs per year which ensures the scientific output of SVOM. | DONG YongWei,WU BoBing,LI YanGuo,ZHANG YongJie & ZHANG ShuangNan Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 5 |
| 11 | Environmental Geochemistry of Mining Activities in Panzhihua Region, Southwestern China显示文摘Mining activities have created huge uncovered slopes, large areas of gangue ground and extensive tailings dams. This paper presents the environmental geochemistry of mining activities in Panzhihua region. The selected elements (Ti, V, Mo. Ni. Pb. Cu) show similar distribution patterns of concentration anomaly in topsoil. These concentration anomalies are located in V-Ti-magnetite slope, gangues dam and coal mine. The distinction between anthropogenic contamination and natural background is made available by the use of the enrichment factor in this study area. The anomalies of EF were smaller than that of concentration. The results from EF show that the selected elements anthropogenic pollution (EF>1) in topsoil were located in both the coal mining area and the V-Ti-magnetite mining area. In addition, the pollution sources of selected elements came from V-Ti-magnetite, slag, gangues, coal and other pollutants from mining activities. | Teng Yanguo Institute of Environmental Sciences, State Key Laboratory of Water Environmental Simulation, Beijing Normal University, Beijing 100875 Tuo Xianguo Department of Nuclear Resources and Technology, Chengdu University of Technology, Chengdu 610059 | 2001 | Journal of China University of Geosciences2001，12，4： | 5 |
| 12 | Physico-chemical properties and structure of rice cultivars grown in Heilongjiang Province of China显示文摘The relationships between chemical composition,structure and physicochemical properties such as pasting,thermal,and textural properties of 12 temperate rice cultivars grown in Heilongjiang Province,China were investigated in this study.There were significant differences in the content of fat,protein,ash,amylose,damaged starch among 12 cultivars.Brabender Viscograph results showed that gelatinization time,peak viscosity,pasting and peak temperature ranged from 9 min to 15 min,2100 BU to 2500 BU,58.75℃to 72.00℃and 63.75℃to 84.45℃,respectively,except for the waxy one Longjing 9.To,Tp,Tc andΔH were found in the range of 58.34℃to 67.96℃,65.39℃to 75.38℃,78.47℃to 90.69℃and 2.036 J/g to 3.127 J/g respectively.Scanning Electron Micro-photograph results showed that all starch granules were polyhedral with irregular shapes,except Longjing 9 showing signs of the loss of physical integrity.The hardness,adhesiveness,springiness,gumminess,cohesiveness and resilience ranged from 395.87 g to 1161.76 g,-90.842 g·mm to-36.4 g·mm,0.498 to 0.747,78.631 g to 466.837 g,0.199 to 0.569,0.321 to 0.504,respectively.Correlation studies indicated that amylose,damaged starch,protein,fat and ash played a more important role in determining the rice properties of pasting,thermal,crystallinity and texture. | Yinyuan He Fenglian Chen Yanguo Shi Zhexian Guan Na Zhang Osvaldo HCampanella | 2021 | Food Science and Human Wellness2021，10，1： | 5 |
| 13 | Comparison of channel geometry changes in Inner Mongolian reach of the Yellow River before and after joint operation of large upstream reservoirs显示文摘下游的河隧道变化上的水库的影响在最后几十年期间是在河的地形学的一个科学问题。然而,它仍然是至于怎么表示在黄河的内部蒙古的活动范围的隧道调整由在上游的水库的联合操作导致了的份量上的一个困难的问题。在四点在隧道剖面图的形状参数上基于在二个时期在一个泛滥的季节在这个河活动范围计量车站, 19781982 和 20082012 ,现在的工作在隧道剖面图在每个泛滥的季节在一样的控制水水平下面以形状参数变化率调查了隧道变化。结果证明大多数参数的变化率显然在两个时期在一个泛滥的季节增加了。然而,在剖面图的每个参数的变化率在后者时期显然减少了,与以前的时期相比。同时,沿着剖面图的形状参数的变化率的分发模式因此在后者时期在以前的时期从一条凸的曲线改变了到一条塑造 S 的曲线。变化率的明显的减少与 Liujiaxia 和 Longyangxia 水库的联合操作有关。水库存储了大量水并且减少在泛滥的季节的山峰分泌物和最大的速度;作为结果,洪水的侵蚀能力因此减少了。与大水库的联合操作,显著地缩小的内部蒙古的隧道。因此,隧道以后将介绍极端洪水的可能性。因而,在未来调整水库的功能是合理的。在充满季节的全部的水和沉积分泌物和山峰分泌物应该有效地被控制。隧道的连续收缩能因此被避免,它能为潜在的极端洪水准备好了。 | SU Teng WANG Suiji MEI Yanguo SHAO Wenwei | 2015 | Journal of Geographical Sciences2015，25，8： | 5 |
| 14 | ELASTO-PLASTIC FEM ANALYSIS OF CYLINDER UPSETTING BETWEEN TWO FLAT PLATENS显示文摘0INTRODUCTIONCylinderupsetingisanimportantprocesintheformingtechnologyofheavyforgings.Theresearchofupsetingacylinderbetweenfl... | Sun Huixue Hu Jinhua Shi Yanguo Yanshan University | 1999 | Chinese Journal of Mechanical Engineering1999，12，1： | 5 |
| 15 | Comparison of CMAS corrosion and sintering induced microstructural characteristics of APS thermal barrier coatings显示文摘The microstructural features of high-temperature sintered and CaO-MgO-Al_2O_3-SiO_2(CMAS) corroded air plasma sprayed Y_2O_3 stabilized ZrO_2(YSZ) thermal barrier coatings(TBCs) under the thermal gradient condition were comparatively studied. As-sprayed YSZ has a lamellar structure and the lamellae are composed of closely aligned columnar crystals. The sintered and the CMAS corroded YSZ coatings maintain the t'-ZrO_2 phase as the as-sprayed YSZ coating. The sintered YSZ remains the lamellar structure with reduced interlamellar gaps and grains coarsening. After the CMAS corrosion, the top layer of the YSZ coating keeps its lamellar structure consisting of some columnar grains with the CMAS infiltration into the intergrain gaps and the formation of striped Zr_2Y_2 O_7. The typical lamellar structure transforms into more equiaxed grains in the middle and bottom layers of the ceramic coating along with significant infiltration of amorphous CMAS and anorthite formation in the bottom layer owing to the high contents of Ca and Al. | Yiyou Wu Hua Luo Canying Cai Yanguo Wang Yichun Zhou Li Yang Guangwen Zhou | 2019 | Journal of Materials Science & Technology2019，35，3： | 5 |
| 16 | Novel Mesoporous Hydroxyapatite/Chitosan Composite for Bone Repair显示文摘 | Jingzhe Zhang Guangyao Liu Qiong Wu Jianlin Zuo Yanguo Qin Jincheng Wang | 2012 | Journal of Bionic Engineering2012，9，2： | 4 |
| 17 | Regional disparities of phytoplankton in relation to different water masses in the Northwest Pacific Ocean during the spring and summer of 2017显示文摘The West Pacific Ocean is considered as the provenance center of global marine life and has the highest species diversity of numerous marine taxa.The phytoplankton,as the primary producer at the base of the food chain,effects on climate change,fish resources as well as the entire ecosystem.However,there are few large-scale surveys covering several currents with different hydrographic characteristics.This study aimed to explore the relationships between the spatio-temporal variation in phytoplankton community structure and different water masses.A total of 630 water samples and 90 net samples of phytoplankton were collected at 45 stations in the Northwest Pacific Ocean(21.0°–42.0°N,118.0°–156.0°E)during spring and summer 2017.A total of 281 phytoplankton taxa(>5μm)belonging to 61 genera were identified in the study area.The distribution pattern of the phytoplankton community differed significantly both spatially and temporally.The average abundances of phytoplankton in spring and summer were 797.07×10~2 cells/L and 84.94×10~2 cells/L,respectively.Whether in spring or summer,the maximum abundance always appeared in the northern transition region affected by the Oyashio Current,where nutrients were abundant and diatoms dominated the phytoplankton community;whereas the phytoplankton abundance was very low in the oligotrophic Kuroshio region,and the proportion of dinoflagellates in total abundance increased significantly.The horizontal distribution of phytoplankton abundance increased from low to high latitudes,which was consistent with the trend of nutrient distributions,but contrary to that of water temperature and salinity.In the northern area affected by the Oyashio Current,the phytoplankton abundance was mainly concentrated in the upper 30 m of water column,while the maximum abundance often occurred at depths of 50–75 m in the south-central area affected by the Kuroshio Current.Pearson correlation and redundancy analysis(RDA)showed that phytoplankton abundance was significant negatively correlated with temperature and salinity,but positively correlated with nutrient concentration.The phytoplankton community structure was mainly determined by nutrient availability,especially the N:P ratio. | Gengming Lin Yanghang Chen Jiang Huang Yanguo Wang Youyin Ye Qingliang Yang | 2020 | Acta Oceanologica Sinica2020，39，6： | 4 |
| 18 | A new approach to promote astaxanthin accumulation via Na_2WO_4 in Haematococcus pluvialis显示文摘The optimum concentration of Na_2 WO_4 was explored in relation to the cell density and astaxanthin content in Haematococcus pluvialis. Then, the cellular morphology, nitrate reductase(NR) activity, soluble sugar and protein contents, and chlorophyll ?uorescence were measured, and the transcriptional expression of carotenogenic genes was determined by quantitative real-time PCR. The results showed that 3.0 mmol/L of Na_2 WO_4 was the optimum concentration to induce astaxanthin accumulation, with a maximum content of 49.41±0.13 pg/cell reached on the tenth day. The NR activity decreased signi?cantly and continually after Na_2 WO_4 treatment. The soluble sugar content increased gradually during the experimental period and was eventually signi?cantly higher than that in the control. The soluble protein content increased rapidly,reached a maximum in day 0.5 and day 1 and then decreased. The ef fective photochemical effciency of PSII( F v'/F m') and light saturation( E k) ?rst decreased and then tended to stabilize, and NADP +-glyceraldehyde-3-phosphate dehydrogenase(GAPDH) gene expression was correlated with photosynthesis. The transcriptional expression of ipi, psy and bkt was signi?cantly increased compared with that in the control after application of Na_2 WO_4, and the relative expression of ipi reached the highest level on the ?fth day, with a 98.03±1.92-fold increase. Our results describe a new approach to promote the ef fective accumulation of astaxanthin in H. pluvialis by NR inhibitor Na_2 WO_4. | LI Yanguo CUI DANDan ZHUO Pinli ZHANG Lin SUN Xue XU Nianjun | 2019 | Journal of Oceanology and Limnology2019，37，1： | 3 |
| 19 | Zooplankton composition and distribution in the Lembeh Strait of North Sulawesi, Indonesia显示文摘Based on oceanographic survey data in June 2012 in the Lembeh Strait, the zooplankton ecological characteristics such as species composition, individual abundance, dominant species and distribution were analyzed. The results showed that 183 species(including 4 sp.) had been recognized, most of them belonged to copepoda.Cnidaria followed with 43 species(including 1 sp.) were identified. The average abundance of zooplankton was(150.47±58.91) ind./m^3. As to the horizontal distribution, the abundance of the zooplankton was higher in the southern waters than in the northern waters. The dominant species in the study area were Lensia subtiloides,Sagitta enflata, Lucifer intermedius, Oikopleura rufescens, Diphyes chamissoni, Creseis acicula, Subeucalanus subcrassus, Temora discaudata, Aglaura hemistoma, Doliolum denticulatum, Canthocalanus pauper, Oikopleura longicauda and Nanomia bijuga. Zooplankton biodiversity indexes were higher in study area than previous study in the other regions. The findings from this study provide important baseline information for future research and monitoring programs. | WANG Yanguo CHEN Xiaoyin XING Bingpeng SUN Rouxin FITRIA Nurul XIANG Peng WANG Chunguang LIN Mao | 2018 | Acta Oceanologica Sinica2018，37，12： | 3 |
| 20 | Study on drying and combustion process in grate-CFB incinerator显示文摘The drying and combustion process in the combined grate and circulating fluidized bed(grate-CFB) municipal solid waste(MSW) incinerator was investigated experimentally and mathematically.The drying grate bed was simulated by a muffle furnace,which could be controlled at a constant tempera-ture level.The kind of wastes,thickness of waste layer fed and temperature were chosen as the ad-justable parameters to study their effect on the drying process.The experimental results indicated that the hydrophilic wastes were more difficult to be dried than the hydrophobic wastes.The higher the temperature is the easier the waste is to be dried.The thinner waste layer is favorable to drying the waste.The pyrolysis experiment in the furnace showed that the higher temperature level could reduce the conversion rate of carbon to carbon monoxide.The semi-empirical mathematical model that in-cluded the bed material distribution submodel,volatile matter release submodel,carbon particle combustion submodel and so on was proposed.A 260 t/d grate-CFB incinerator was modeled and the model predicted bulk density agreed with the measured value from industrial field test.The predicted flue gas(e.g.CO2,CO) concentration deviated slightly from the industrial test data.The parameters and variables used in the model were determined by the experiments or practical field test.This model can be used to design the grate-CFB incinerator and guide its operation. | QingHai Li YanGuo Zhang MeiQian Chen AiHong Meng ChangHe Chen | 2009 | Science China(Technological Sciences)2009，52，5： | 3 |
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