Showing 721 - 740 results of 929 for search '"clay"', query time: 0.08s Refine Results
  1. 721

    Effects of rubber leaf litter vermicompost on earthworm population and yield of pineapple (Ananas comosus) in West Tripura, India by P. S. Chaudhuri, T. K. Paul, Animesh Dey, M. Datta, S. K. Dey

    Published 2024-01-01
    “…Conclusion The present study reveals that crop yield is very much related to the particular concentration of vermicompost, beyond the level of which production declines and increase in vegetative growth, fruit weight and fruiting percentage of pineapple are strongly linked with the soil pH, av. P, av. K, clay content and the earthworm density of soils.…”
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  2. 722

    Influence of soil salinity on the bearing capacity of the frozen wall by Mikhail Semin, Lev Levin, Sergey Bublik, Andrey Brovka, Ivan Dedyulya

    Published 2024-04-01
    “… The article describes the results of laboratory studies on the unfrozen water content and ultimate long-term strength of frozen clay and chalk samples in the temperature range from −10 to −25 °C. …”
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  3. 723

    Measurement of Degree of Compaction of Fine-Grained Soil Subgrade Using Light Dynamic Penetrometer by Junhui Zhang, Yongsheng Yao, Jianlong Zheng, Xiangqun Huang, Tian Lan

    Published 2018-01-01
    “…To determine the degree of compaction of subgrades filled with fine-grained soil, the compaction test and light dynamic penetrometer (LDP) test were carried out for low liquid-limit clay samples with different water contents in laboratory. …”
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  4. 724

    Processes Governing Alkaline Groundwater Chemistry within a Fractured Rock (Ophiolitic Mélange) Aquifer Underlying a Seasonally Inhabited Headwater Area in the Aladağlar Range (Ada... by Cüneyt Güler, Geoffrey D. Thyne, Hidayet Tağa, Ümit Yıldırım

    Published 2017-01-01
    “…R-mode factor analysis of hydrochemical data hints at geochemical processes taking place in the groundwater system, that is, WRI involving Ca- and Si-bearing phases; WRI involving amorphous oxyhydroxides and clay minerals; WRI involving Mg-bearing phases; and atmospheric/anthropogenic inputs. …”
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  5. 725

    Impact of nitrogen fertilization and rootstock genotype on growth and fruit quality of Nules clementine by Fatima Ezahra Omari, Lhou Beniken

    Published 2025-01-01
    “… This study focuses on understanding the impact of varying nitrogen rates on the growth, fruit production, and quality of clementine Nules variety trees grafted onto Flhorag and Carrizo citrange rootstocks and cultivated at the Sidi Allal Tazi Experimental Station of INRA Morocco, in clay soil, over five seasons. A split-plot design with three blocks of repetitions (two trees per bloc per treatment, n=6) was employed in this experiment. …”
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  6. 726

    Soil Physicochemical Properties Variation under Annual Crop and Coffee Landuse in the Chentale Watershed, Upper Blue Nile Basin, Ethiopia by Feven Azene Tebekew, Teshome Betru Tadesse, Desta Adane Alemu, Amsalu Awoke Ayalew

    Published 2024-01-01
    “…Furthermore, a neutral pH range, clay loam texture, medium level of organic matter (3.93%) and nitrogen (0.18%), high level of available phosphorus (23.35 PPM), and high to very high level of exchangeable base were recorded from coffee landuse than from cropland. …”
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  7. 727

    Early Iron Age Pottery Technology of the Kazakh Uplands (Saryarqa) by Valeriy G. Loman

    Published 2024-09-01
    “…Our analysis of related data for barrows with ‘moustaches’ shows the latter’s pottery traditions (preference to clay concentrates, grog, and spiral patching) essentially differ from those traced in regular barrows. …”
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  8. 728

    Study on Anisotropic Petrophysical Modeling of Shale: A Case Study of Shale Oil in Qingshankou Formation in Sanzhao Sag, Songliao Basin, China by Ang Li, Liyan Zhang, Jianguo Yang, Shichao Li, Fei Xiao, Yulai Yao, Yiming Huang, Bo Liu, Longsheng Li

    Published 2023-01-01
    “…Based on the petrological and microstructure characteristics of shale in the Qingshankou formation of Sanzhao sag in the north of Songliao Basin, this paper presents an anisotropy petrophysical model with complex pore structure suitable for organic shale constructed with the use of the Voigt-Reuss-Hill average model, an anisotropy self-consistent approximation+differential effective medium model, and the layering of clay and kerogen is simulated by using the Voigt-Reuss-Hill average and bond transform to achieve the simulation of shale anisotropy. …”
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  9. 729

    Experimental Investigation into the Effects of Fracturing Fluid-Shale Interaction on Pore Structure and Wettability by Yan Zhang, Zhiping Li, Fengpeng Lai, Hao Wu, Gangtao Mao, Caspar Daniel Adenutsi

    Published 2021-01-01
    “…It was also found that the effect of slick water on pore structure can be attributed to two phenomena: the swelling of clay minerals and the dissolution of carbonate minerals. …”
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  10. 730

    A Review of Caffeine Adsorption Studies onto Various Types of Adsorbents by Javier Andrés Quintero-Jaramillo, Javier Ignacio Carrero-Mantilla, Nancy Rocío Sanabria-González

    Published 2021-01-01
    “…Phenyl-phosphate-based porous organic polymer (301 mg/g), natural sandy loam sediment (221.2 mg/g), composites of MCM-48 encapsulated graphene oxide (153.8 mg/g), and organically modified clay (143.7 mg/g) showed adsorption capacities lower than those of activated carbons. …”
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  11. 731

    Investigation of Heat and Mass Transfer in the Process of Convective Heat Treatment and Drying of Thermal Insulation Materials and Approximate Equation of the Drying Curve by A. I. Ol’shanskii, A. N. Golubev

    Published 2023-10-01
    “…Based on the study and analysis of numerous sources, the ranges of changes in the Lykov, Posnov, and phase transformation criteria for the processes of heat treatment of ceramics, asbestos, felt, and clay plates have been approximately determined. It is demonstrated that for values of Biot numbers less than one, for Lykov criteria value of 0.05–0.13 and for Posnov criteria value of 0.03–0.08 for drying modes with a temperature of 90–120 ° C, the task of drying, as a heat and mass transfer process, is external, and internal transfer does not affect the conditions of interaction of the material surface with the environment. …”
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  12. 732

    Citrus Irrigation Management by Davie Mayeso Kadyampakeni, Kelly T. Morgan, Mongi Zekri, Rhuanito Ferrarezi, Arnold Schumann, Thomas A. Obreza

    Published 2017-10-01
    “… Water is a limiting factor in Florida citrus production during the majority of the year because of the low water holding capacity of sandy soils resulting from low clay and the non-uniform distribution of the rainfall. …”
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  13. 733

    Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material by Yangpeng Zhang, Jianping Xiong, Qinglin Li, Jiuhui Cui

    Published 2020-01-01
    “…In order to promote the sustainable use of oil shale residues, a novel subgrade material (SOF) composed of silty clay, oil shale ash residue, and fly ash was developed. …”
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  14. 734

    Characterization and Mapping of Soil-Landscape for Site-Specific Soil Management in Ayiba Watershed, Northern Highlands of Ethiopia by Weldemariam Seifu, Eyasu Elias, Girmay Gebresamuel, Gudina Legese Feyisa, Wolde Tefera

    Published 2023-01-01
    “…According to the finding, the soils were shallow to very deep in depth, moderately acidic to moderately alkaline in soil reaction, nonsaline in salinity, and clay to sandy loam in texture. The soils were found very low to low levels in most soil nutrients, very low to very high levels of base saturation, and deficient in zinc but have adequate levels of iron, copper, and manganese. …”
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  15. 735

    Influence of Both Soil Properties and Geometric Parameters on Failure Mechanisms and Stability of Two-Layer Undrained Slopes by Shuangfeng Guo, Ning Li, Wenpeng Liu, Zongyuan Ma, Naifei Liu, Gao Lv

    Published 2020-01-01
    “…The stability of the two-layer undrained clay slopes should be given considerable attention since they are commonly observed in nature and in manmade structures, and they traditionally have low stability. …”
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  16. 736

    Laboratory Model Tests on Consolidation Performance of Soil Column with Drained-Timber Rod by X. J. Chai, K. Deng, C. F. He, Y. F. Xiong

    Published 2021-01-01
    “…It can be expected that the drained-timber pile technique has a good application prospect for the construction of medium-small hydraulic structures and for the treatment of super soft clay.…”
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  17. 737

    Investigation of Benzoic Acid Adsorption on to ODTMA-Bentonite by Response Surface Optimization by H. Kapucu, N. Yildiz, R. Gönülşen, A. Ç Çalimli

    Published 2002-10-01
    “…ODTMA-bentonite was synthesized by the incorporation of a quaternary ammonium surfactant (octadecyltrimethylammonium bromide) on to Ç ankiri sodium bentonite (Ç Na-B) with a cation-exchange capacity of 85 mequiv/100 g clay. A 2 4 full factorial central composite experimental design followed by multi-stage Monte-Carlo optimization was used in designing the experiments and analyzing the results. …”
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  18. 738

    Soil and Groundwater Characteristics of a Legacy Spill Site by A Adoki

    Published 2013-07-01
    “…Where it occurs within the subsurface, the groundwater was observed to occur either within the lower part of the sandy clay or within the sands and gravels layer. The general direction of the groundwater flow within the area was observed to be from the North West to the South East. …”
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  19. 739

    Laboratory Investigation on Optimum Selection of a Sand Control Method for an Interbedded Sandstone and Mudstone Reservoir by Shaofeng Hu, Lihua Wang, Yishan Lou, Yanfeng Cao, Wenbo Meng, Lei Zhang

    Published 2020-01-01
    “…In addition, a sensitivity analysis regarding formation particle size distribution (PSD), clay content, and mineral compositions is performed in the experiment under a moderate sand control mode. …”
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  20. 740

    Physicochemical Properties and Fertility Assessment of Soils in Foumban (West Cameroon) by Vivien Piercy Lotse Tedontsah, Michel Bertrand Mbog, Gilbert François Ngon Ngon, Robert Christel Edzoa, Bernard Tassongwa, Dieudonné Bitom, Jacques Etame

    Published 2022-01-01
    “…An amendment of these soils in organic fertilizer (fluent, compost, and manure) would facilitate the formation of the clay-humus complex; thus, allowing good retention of water in the soil.…”
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