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  • different grain size fractions 的翻译结果--cnki翻译助手

    Mercury concentrations were determined in bulk sediments of different grain size fractions using the cold vapor atomic fluorescence spectrometry method. The aim of this study is to determine the distribution of mercury in different grain size fractions of surface sediments from the middle course of the Odra River. ...

  • Interpolation of measured grain-size fractions ...

    Figure 1 Example of a cumulative grain-size distribution of the sand fraction. In these graphs the different amounts of throughfall are shown. With a mesh size of 2 mm, 100% of the sediment is falling through. The opposite holds true for a mesh size of 63 micron; 0% of the sediment falls through.

  • Protein content of grains of different size fractions in ...

    In grain samples of a given environment, even of a single plant, there are grains of different sizes. Few authors have mea-sured the protein content of grain of different sizes coming from a given environment. Li et al. (16) separated grains from four grain samples into several grain size fractions (>2.8, 2.8–2.4 and 2.4–2.0mm), and did not ...

  • Luminescence dating of glacial deposits near the eastern ...

    Quartz grains in the fine (4-11 mu m) and medium (38-63 mu m) size fractions were extracted from each sample, and dated using the single-aliquot regeneration (SAR) protocol. The modern supraglacial. sediment sample was dated to similar to 0.2 (fine grain) to similar to 0.7 (medium grain) ka, suggesting that the sediment was not completely bleached on deposition.

  • Lead in grain size fractions of road-deposited

    Cited by: 239
  • Trace metal accumulation in different grain size

    2000-8-1  The distribution of Manganese over size fractions shows no trend in Stations 1, 2 and 3, while Manganese concentration increases with decreasing grain size in Stations 4 and 5, and increases with increasing grain size in Station 6.

  • (PDF) Grain size fraction of heavy metals in soil and ...

    Fig. 5 Grain size factors values of heavy metals at different la nd use and grain size fractions. 8 Proceedings of the International Academy of Ecology and Environmental Sc iences, 2017, 7(1): 1-11

  • Ti distribution in grain-size fractions of Apollo soils ...

    2014-5-24  Ti distribution in grain-size fractions of Apollo soils 10084 and 71501 W.G. Konga,b,⇑, B.L. Jolliffb, Alian Wangb a MLR Key Laboratory of Saline Lake Resources and Environments, Institute of Mineral Resources, CAGS, Beijing 100037, China bDepartment of Earth and Planetary Sciences and the McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, MO 63130,

  • Protein content of grains of different size fractions in ...

    Grain protein content of all grain size fractions increased owing to N addition at every site (Fig. 2, Table 3). There was no difference in the protein content between grain size fractions at two sites (sites 2 and 3). At site 4, thin grains had higher protein content than plump grains regardless of the N level.

  • Particle Size Fractions - University of New South Wales

    2014-8-12  Particle size fractions. The physical and chemical properties of soil are strongly influenced by the particle size distribution of soil particles. Although the particle size distribution is a continuum, it is conveniently broken down into size classes. Particle sizes range from less than 0.002 mm (e.g. clay) to greater than 2 mm (e.g. fine gravel).

  • Luminescence dating of glacial deposits near the eastern ...

    Quartz grains in the fine (4-11 mu m) and medium (38-63 mu m) size fractions were extracted from each sample, and dated using the single-aliquot regeneration (SAR) protocol. The modern supraglacial. sediment sample was dated to similar to 0.2 (fine grain) to similar to 0.7 (medium grain) ka, suggesting that the sediment was not completely bleached on deposition.

  • Protein content of grains of different size fractions in ...

    grain samples into several grain size fractions (> 2.8, 2.8 – 2.4 and 2.4 – 2.0 mm), and did not observe differences in protein content between these three grain size fractions within each

  • Comparison of Geostatistical Kriging Algorithms for ...

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  • Effect of Temperature on Grain Size in AA6063

    2020-6-30  Figure 5a and b shows the grain boundary (GB) mapping and grain size distribution of unprocessed AA6063 aluminum alloy. The average grain size is ~ 40 μm. Figure 5c displays the fraction of high-angle grain boundaries (HAGBs) and taken together with Fig. 4a. It is clear that the parent material has equiaxed grains with a large fraction of HAGBs.

  • Environmental Change Inferred from Distribution of Rb and

    2006-5-18  Acta Geographica Sinica ›› 2006, Vol. 61 ›› Issue (11): 1208-1217. doi: 10.11821/xb200611010 Previous Articles Next Articles Environmental Change Inferred from Distribution of Rb and Sr in Different Grain Size Fractions from Lacustrine Sediments

  • Geochemical indicator of original eolian grain size and ...

    2013-12-5  2.1 Relations between grain size and chemical composition The grain-size distribution and the weight proportions of each grain-size fraction in the two loess samples are shown in fig. 1. The fractions >50 µm represent only a proportion of less than 2%, indicating that the grain-size pattern of loess samples mainly depends on the fractions <50 µm.

  • Starch Granule Size Distribution in Grains of Maize with ...

    2012-1-31  Abstract: Maize (Zea mays L.) kernel dry weight contains about 70% starch.Many studies have focused on the effects of sowing date, variety and nitrogen top-dressing on starch granule distribution in single variety or two varieties. But starch granule size distribution in grains of different endosperm types of maize has not been clear yet.

  • Elimination and evaluation of grain size's effect in ...

    2013-9-3  ously different from MEA of other grain-size fractions. From their results, the average major elemental abundances (AMEA) of dif-ferent grain-size fractions of decarbonated loess–paleosol samples were summarized in Table 1. Abundances of Al2O3,Fe2O3,K2O, MnO, P2O5 and MgO in fine grain fractions are larger than those in

  • Sediment Grain-Size Characteristics and its Sources of Ten ...

    2019-1-10  size, the contributions of sediment sources, and the grain-size fractions of outputs to the Yellow River for both the sediments carried by the hyperconcentrated flows and ordinary sediment-laden flows of the Ten Kongduis. The objectives of this paper are to

  • Influence of Grain Size on the Ductile Fracture Toughness ...

    Influence of Grain Size on the Ductile Fracture Toughness of Ferritic Steel Hai QIU,* Toshihiro HANAMURA and Shiro TORIZUKA ... the six steels have different volume fractions of pearlite (fp). Therefore, the JIC is the function of both d and fp. It is not rational to

  • Environmental Change Inferred from Distribution of Rb and

    2006-5-18  Acta Geographica Sinica ›› 2006, Vol. 61 ›› Issue (11): 1208-1217. doi: 10.11821/xb200611010 Previous Articles Next Articles Environmental Change Inferred from Distribution of Rb and Sr in Different Grain Size Fractions from Lacustrine Sediments

  • Geochemical indicator of original eolian grain size and ...

    2013-12-5  2.1 Relations between grain size and chemical composition The grain-size distribution and the weight proportions of each grain-size fraction in the two loess samples are shown in fig. 1. The fractions >50 µm represent only a proportion of less than 2%, indicating that the grain-size pattern of loess samples mainly depends on the fractions <50 µm.

  • Recovery of copper from small grain size fractions of ...

    2018-9-17  Small grain size fractions of municipal solid waste incineration (MSWI) bottom ash (BA) contain elemental and chemically bonded metals in appreciable amounts, especially copper. Investigations with a centrifugal concentrator were carried out using samples, which had been treated with different impact devices.

  • Particle-size dependent magnetic properties of Scotia Sea ...

    2020-7-18  Of three particle-size fractions (> 63, 16–63, and < 16 μm), the coarse silt fraction (16–63 μm) is responsible for the magnetic properties of bulk glacial sediments. Such dominant contribution of coarse silts rules out a major input of dust, which is expected as finer silt and clay.

  • Ti distribution in grain-size fractions of Apollo soils ...

    2014-5-24  Ti distribution in grain-size fractions of Apollo soils 10084 and 71501 W.G. Konga,b,⇑, B.L. Jolliffb, Alian Wangb a MLR Key Laboratory of Saline Lake Resources and Environments, Institute of Mineral Resources, CAGS, Beijing 100037, China bDepartment of Earth and Planetary Sciences and the McDonnell Center for the Space Sciences, Washington University in St. Louis, St. Louis, MO 63130,

  • 中国科学院机构知识库网格系统: Effects of grain size ...

    Compared to other size fractions, the 5-6PHI size fractions of the Huanghe and Changjiang sediments have special mineralogical and chemical compositions, and intermediate volume percentages. Weight or volume percentage of each size fraction may be more suitable than mean grain-size of the bulk sediment to elucidate the grain size effects.

  • Comparison of Geostatistical Kriging Algorithms for ...

    This paper compares the predictive performance of different geostatistical kriging algorithms for intertidal surface sediment facies mapping using grain size data. Indicator kriging, which maps facies types from conditional probabilities of predefined facies types, is first considered. In the second approach, grain size fractions are first predicted using cokriging and the facies types are ...

  • Paleoclimatic significance of grain size of loess-palaeosol ...

    Particle size analysis for samples from three last glacial cycle loess_palaeosol profiles along a northwest_southeast transection on the Chinese Loess Plateau has been carried out. The paleoclimatic significance of grain size indices has been obtained by analyzing ...

  • Stacked 2.6-Ma grain size record from the Chinese loess ...

    selected specific grain size fractions would thus be influ-enced by changes in loess thickness, dust input from local sources and so on. In comparative terms, the orbital tuning approach provides more identical age constraints for loess-soil units than other methods, even where thickness of a specific loess or soil unit varies significantly ...

  • Use of the grain-size distribution for estimation of the soil ...

    2014-1-11  [8] + p5 Pore volume The grain-size distribution curve can be divided into n fractions of uniformly sized particles. Each fraction has an assumed packing arrangement for the particles, and this is referred to as the packing factor.

  • Comparison of Geostatistical Kriging Algorithms for ...

    This paper compares the predictive performance of different geostatistical kriging algorithms for intertidal surface sediment facies mapping using grain size data. Indicator kriging, which maps facies types from conditional probabilities of predefined facies types, is first considered. In the second approach, grain size fractions are first predicted using cokriging and the facies types are ...

  • Recovery of copper from small grain size fractions of ...

    2018-9-17  ABSTRACTSmall grain size fractions of municipal solid waste incineration (MSWI) bottom ash (BA) contain elemental and chemically bonded metals in appreciable amounts, especially copper. Investigations with a centrifugal concentrator were carried out using samples, which had been treated with different impact devices. Partly the impacts of single devices were visible in outlines, but mostly

  • Effect of suspended sediment grain size on channel ...

    【摘要】:Based on the data of suspended sediment transport and channel sedimentation in various grain size fractions in the period of 1962―1985, the relationship between channel sedimentation in the lower Yellow River and sediment input has been plotted with respect to each grain size fraction. ...

  • Academics in Grain Size Fractions - Academia.edu

    View Academics in Grain Size Fractions on Academia.edu.

  • Comparison of two classification methods to identify

    2020-5-15  Comparison of two classification methods to identify grain size fractions of aeolian sediment YanZai Wang 1, 2, 3, *(),YongQiu Wu 2, 3,MeiHui Pan 2, 4,RuiJie Lu 2, 3 1 College of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China 2 ...

  • Grain-size distribution and heavy metal contamination of ...

    Grain-size distribution and heavy metal contamination of road dusts in urban parks and squares in ... In all studied areas, there are large differences in the metal-loading percentage of different particle-size fractions among the samples, and the particles in 250 . ...

  • Sediment Grain Size Distribution Long Island Sound ...

    Sediment texture, which includes shape, size and three-dimensional arrangement of sediment particles, is an essential element of any habitat classification. In addition to grain size information, the total organic content distribution is of great value for the biological habitat classification s ...

  • Grain-size effect on rare earth elements in Pahang River ...

    2 31 major contributor to the enrichment of HREE with increasing grain size. By combining the 32 content of REE, the normalized REE patterns and the REE characteristic parameters for 33 different grain sizes, we find that 4-8 μm fraction represents REE variation sensitively among 34 six size fractions investigated. Furthermore, the relationship between δEuUCC and (Gd/Yb)UCC

  • Stacked 2.6-Ma grain size record from the Chinese loess ...

    selected specific grain size fractions would thus be influ-enced by changes in loess thickness, dust input from local sources and so on. In comparative terms, the orbital tuning approach provides more identical age constraints for loess-soil units than other methods, even where thickness of a specific loess or soil unit varies significantly ...

  • Particle Size Fractions - University of New South Wales

    2014-8-12  Particle size fractions. The physical and chemical properties of soil are strongly influenced by the particle size distribution of soil particles. Although the particle size distribution is a continuum, it is conveniently broken down into size classes. Particle sizes range from less than 0.002 mm (e.g. clay) to greater than 2 mm (e.g. fine gravel).