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Journal articles on the topic 'Pillared Clay Soil'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Kebena, Gebeyehu Motora1* Dejene Ayele Tesema2. "REMOVAL OF FLUORIDE FROM AQUEOUS SOLUTION USING FIRED CLAY SOIL PILLARED WITH TEA LEAF ASH COMPONENTS." INDO AMERICAN JOURNAL OF PHARMACEUTICAL RESEARCH 07, no. 09 (2017): 242–435. https://doi.org/10.5281/zenodo.1036319.

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This study reports on the adsorption of fluoride ion from aqueous solutions by using fired clay soil, pillared with tea leave ash components. The potential of low cost material fired clay soil and fired clay soil pillared with tea leave ash components for fluoride removal from aqueous solution was evaluated by using fluoride ion selective electrode. Pillaring of clay soil with tea leave ash was done by thoroughly mixing fifteen gram of tea leave ash and three hundred gram of clay soil using distilled water and it was aged for 96 hours until it was dried. Untreated clay soil and clay soil pilla

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Murray, H. H. "Applied clay mineralogy today and tomorrow." Clay Minerals 34, no. 1 (1999): 39–49. http://dx.doi.org/10.1180/000985599546055.

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AbstractThe clay minerals kaolin, smectite and palygorskite-sepiolite are among the world's most important and useful industrial minerals. Clay minerals are important in a number of geological applications such as stratigraphic correlations, indicators of environments of deposition and temperature for generation of hydrocarbons. In agriculture, the clay minerals are a major component of soils and determinant of soil properties. The clay minerals are important in construction where they are a major constituent in brick and tile. The physical and chemical properties of the clay minerals determin

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3

Zhang, Zeng Zhi, Bo Tao Wang, and Shuang Zhou. "PILCs as Water-Transmitting Material and Application in Planting Trees in Drought Areas." Materials Science Forum 685 (June 2011): 239–45. http://dx.doi.org/10.4028/www.scientific.net/msf.685.239.

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Clay-based water-transmitting materials were proposed in order to solve the problems of dry soil layer and watering during forest planting in drought areas. The pillared interlayered clay was prepared in the presence of primary bentonite. The conductivity property was investigated under various conditions of cross-linking agent ratio. The structural aspects and thermal degradation of composites were also studied by means of XRD, TG and porosity analysis. The results indicated that pillared clays modified by Al cross-linking agent exhibit higher water conductivity properties remarkably. Larger

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4

Carrado, Kathleen A. "Reactivity of Anisoles on Clay and Pillared Clay Surfaces." Clays and Clay Minerals 38, no. 3 (1990): 250–56. http://dx.doi.org/10.1346/ccmn.1990.0380303.

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5

Teles, Ana Paula Bettoni, Marcos Rodrigues, and Paulo Sergio Pavinato. "Solubility and Efficiency of Rock Phosphate Fertilizers Partially Acidulated with Zeolite and Pillared Clay as Additives." Agronomy 10, no. 7 (2020): 918. http://dx.doi.org/10.3390/agronomy10070918.

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Soluble phosphates are the most common sources currently used in crop production in tropical soils; however, they present low efficiency and are more expensive than natural rock phosphates. The objective was to develop new phosphate fertilizers with slow solubility through the partial acidification of rock phosphates (RPs), incorporating materials with adsorption characteristics to favor slow dissolution and prevent phosphorus (P) fixation in the soil. Three rock phosphates, Araxá (ARP), Bayovar (BRP) and Morocco (MRP), were evaluated at two acidulation levels (25 and 50% Ac.) and two additive

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6

Undabeytia, T., M. C. Galán-Jiménez, E. Gómez-Pantoja, et al. "Fe-pillared clay mineral-based formulations of imazaquin for reduced leaching in soil." Applied Clay Science 80-81 (August 2013): 382–89. http://dx.doi.org/10.1016/j.clay.2013.07.001.

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7

Clinard, Christian, Tushar Mandalia, Denise Tchoubar, and Faiza Bergaya. "Hrtem Image Filtration: Nanostructural Analysis of a Pillared Clay." Clays and Clay Minerals 51, no. 4 (2003): 421–29. http://dx.doi.org/10.1346/ccmn.2003.0510408.

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8

Polubesova, Tamara, Shlomo Nir, Zev Gerstl, Mikhail Borisover, and Baruch Rubin. "Imazaquin Adsorbed on Pillared Clay and Crystal Violet-Montmorillonite Complexes for Reduced Leaching in Soil." Journal of Environmental Quality 31, no. 5 (2002): 1657–64. http://dx.doi.org/10.2134/jeq2002.1657.

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9

Aouad, Amina, Alexandre S. Anastácio, Faïza Bergaya, and Joseph W. Stucki. "A Mössbauer Spectroscopic Study of Aluminum- and Iron-Pillared Clay Minerals." Clays and Clay Minerals 58, no. 2 (2010): 164–73. http://dx.doi.org/10.1346/ccmn.2010.0580203.

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10

Bukka, Krishna. "FTIR Study of Deuterated Montmorillonites: Structural Features Relevant to Pillared Clay Stability." Clays and Clay Minerals 40, no. 1 (1992): 92–102. http://dx.doi.org/10.1346/ccmn.1992.0400110.

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11

Poncelet, G. "Pillared Clays." Clays and Clay Minerals 38, no. 2 (1990): 223. http://dx.doi.org/10.1346/ccmn.1990.0380217.

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12

Albanis, T. A., T. G. Danis, and P. J. Pomonis. "Separation of chlorophenols using columns of hydroxyaluminium interlayered clays." Clay Minerals 32, no. 1 (1997): 143–47. http://dx.doi.org/10.1180/claymin.1997.032.1.15.

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Clay minerals play an important role in the retention, transport and chemistry of organic micropollutants in soils. There has been considerable recent interest in modelling and designing modified clays as adsorbents and catalysts for the removal of contaminants from waste waters (McBride et al., 1977; Mortland et al., 1986; Boyd et al., 1988). Organo-clays have been used as chromatographic stationary phases over the past three decades. White (1957) and Barrer & Hampton (1957) used alkylammonium montmorillonites as stationary phases and determined the selective retention of aromatic hydroca

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13

Unkovich, Murray, Therese McBeath, Rick Llewellyn, James Hall, Vadakattu VSR Gupta, and Lynne M. Macdonald. "Challenges and opportunities for grain farming on sandy soils of semi-arid south and south-eastern Australia." Soil Research 58, no. 4 (2020): 323. http://dx.doi.org/10.1071/sr19161.

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Sandy soils make up a substantial fraction of cropping land in low rainfall (&lt;450 mm p.a.) south and south-eastern Australia. In this paper we review the possible soil constraints to increased production on these soils in this region. Many of these soils have a very low (&lt;3%) clay content and suffer from severe water repellency, making crop establishment and weed control problematic. Crops which do emerge are faced with uneven soil wetting and poor access to nutrients, with crop nutrition constraints exacerbated by low fertility (soil organic matter &lt; 1%) and low cation ex

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14

Fan, Zhenli, Kesong Fan, Zhiguo Liu, Yutong Feng, Hua Wei, and Yunsen Zhou. "Experimental Study on the Mining-Induced Water-Resistance Properties of Clay Aquicludes and Water Conservation Mining Practices." Advances in Civil Engineering 2021 (October 4, 2021): 1–12. http://dx.doi.org/10.1155/2021/4868998.

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The Yushen mining area contains thin bedrock and a shallow buried coal seam, where JingLe group Hipparion clay and Lishi loess serve as a high-quality cement insulation cover. This study investigates the properties of the clay layer to determine the effect of the clay aquiclude on the mining water variation and fracture characteristics. Unloading hydraulic jack experiments were performed to test the physical and mechanical properties of the clay layer and the structure was analyzed in detail. The experimental results show that mining affects the soil cracks, leading to crack opening and subseq

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15

Fan, Zhenli, Kesong Fan, Zhiguo Liu, Yutong Feng, Hua Wei, and Yunsen Zhou. "Experimental Study on the Mining-Induced Water-Resistance Properties of Clay Aquicludes and Water Conservation Mining Practices." Advances in Civil Engineering 2021 (October 4, 2021): 1–12. http://dx.doi.org/10.1155/2021/4868998.

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The Yushen mining area contains thin bedrock and a shallow buried coal seam, where JingLe group Hipparion clay and Lishi loess serve as a high-quality cement insulation cover. This study investigates the properties of the clay layer to determine the effect of the clay aquiclude on the mining water variation and fracture characteristics. Unloading hydraulic jack experiments were performed to test the physical and mechanical properties of the clay layer and the structure was analyzed in detail. The experimental results show that mining affects the soil cracks, leading to crack opening and subseq

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16

محمد, Kareem Abdullah. "Research into the Positional Erosion around Bridges Abutments in the Garmian Region." Journal of engineering sciences and information technology 6, no. 6 (2022): 67–97. http://dx.doi.org/10.26389/ajsrp.r270422.

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In this research, investigation the impact of the water levels, water velocity on the drift depth of pillars of the bridges in the Garmian region was studied. The water levels and velocity were recorded for periods, different stretches between the months of December of 2018 and March of 2019. The study dealt with the most important postural relationships that can be used to estimate the depth of future drift around the pillars. Description of the site of the studying region within Garmian region includes site measurements of the bridge span, height and pillars. Hydraulic properties of the basi

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17

Romero, Amaya, Fernan Dodorado, Isaac Asencio, Prado Belen García, and José Luis Valverde. "Ti-pillared clays: synthesis and general characterization." Clays and Clay Minerals 54, no. 6 (2006): 737–47. http://dx.doi.org/10.1346/ccmn.2006.0540608.

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18

Carvalho, Ana P., Angela Martins, João M. Silva, João Pires, Helena Vasques, and M. Brotas de Carvalho. "Characterization of the acidity of Al- and Zr-pillared clays." Clays and Clay Minerals 51, no. 3 (2003): 340–49. http://dx.doi.org/10.1346/ccmn.2003.0510311.

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19

Jimenez-Lopez, Antonio. "Pillared Clays Prepared from the Reaction of Chromium Acetate with Montmorillonite." Clays and Clay Minerals 41, no. 3 (1993): 328–34. http://dx.doi.org/10.1346/ccmn.1993.0410307.

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20

Michot, Laurent J. "Adsorption of Chlorinated Phenols from Aqueous Solution by Surfactant-Modified Pillared Clays." Clays and Clay Minerals 39, no. 6 (1991): 634–41. http://dx.doi.org/10.1346/ccmn.1991.0390609.

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21

Bachir, Cherifa, Yanhua Lan, Valeriu Mereacre, Annie K. Powell, Christian Bender Koch, and Peter G. Weidler. "Magnetic Titanium-Pillared Clays (Ti-M-PILC): Magnetic Studies and Mössbauer Spectroscopy." Clays and Clay Minerals 57, no. 4 (2009): 433–43. http://dx.doi.org/10.1346/ccmn.2009.0570404.

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22

Valverde, José Luis, Paula Sánchez, Fernando Dorado, Isaac Asencio, and Amaya Romero. "PREPARATION AND CHARACTERIZATION OF Ti-PILLARED CLAYS USING Ti ALKOXIDES. INFLUENCE OF THE SYNTHESIS PARAMETERS." Clays and Clay Minerals 51, no. 1 (2003): 41–51. http://dx.doi.org/10.1346/ccmn.2003.510105.

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23

Hutsal, Anatolii, Vitalii Hutsal, and Oleksandr Mohylov. "A Mound of the Early Scythian Period near Shutnivtsi Village in Middle Dnister Region." Arheologia, no. 4 (December 23, 2022): 83–104. http://dx.doi.org/10.15407/arheologia2022.04.083.

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The article is dedicated to the description of the mound no. 5 contents near Shutnivtsi village of Kamianets-Podilskyi region, Khmelnytskyi Oblast. The monument was explored in 1999 by the Expedition of Kamianets-Podilskyi University and headed by A. F. Hutsal. The height of the mound was 0.5—0.6 m, the diameter — 8 m. The embankment consisted of soil with stones. Under the embankment, after rabotage, there were discovered the remains of stone structures concentrated above and around the grave. In section, they had a shape close to the square with dimensions of 5.5 × 4.5 m. Its outer contours

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24

Petkovic, Sofija, and Aleksandar Kapuran. "Archaeological excavations at Gamzigrad - Romuliana in 2007-2008." Starinar, no. 63 (2013): 287–300. http://dx.doi.org/10.2298/sta1363287p.

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Systematical archaeological excavations at the site Gamzigrad - Felix Romuliana continued in 2007-2008 in the south-eastern part of the fortified imperial palace, in the section of the thermae according to the plan of archaeological research for this site (2005-2009). In 2007, squares L'XXIV, M'XXIV, M'XXIH and M'XXII, which were investigated in 2005 to the horizon c, dated to the end of the 5th and the beginning of the 6th centuries, were completely excavated to the level of the porch of the earlier fortification of Romuliana (Plan 1). The stratigraphy of the cultural layers in these squares

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25

Zielke, Richard C. "Modified Clays for the Adsorption of Environmental Toxicants: Binding of Chlorophenols to Pillared, Delaminated, and Hydroxy-Interlayered Smectites." Clays and Clay Minerals 36, no. 5 (1988): 403–8. http://dx.doi.org/10.1346/ccmn.1988.0360504.

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26

González, Eduardo, Douglas Rodríguez, Lenin Huerta, and Alexander Moronta. "Isomerization of 1-Butene Catalyzed by Surfactant-Modified, Al₂O₃-Pillared Clays." Clays and Clay Minerals 57, no. 3 (2009): 383–91. http://dx.doi.org/10.1346/ccmn.2009.0570310.

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27

Ben-Shlomo, David. "Petrographic Analysis of Iron Age Pottery from Tell en-Naṣbeh". Judea and Samaria Research Studies 30, № 2 (2021): 57–87. http://dx.doi.org/10.26351/jsrs/30-2/6.

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site Tell en-Naṣbeh and dating mostly to the Iron Age II. The vessels analyzed represent main Iron Age II types appearing at the site (bowls, kraters, cooking pots, jars, jugs), alongside a number of special groups from this and other periods, including Philistine Bichrome vessels, vessels thought to have been imported, and several Judean pillar and other figurines. The primary aim of the study was to characterize the raw materials used for pottery production at this site and in the region of Benjamin, and to identify evidence for trade in vessels on various scales. The results show that, in g

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28

Putri, Sudarmanto, Yunaefi, Risky Amaliya. "PERENCANAAN JEMBATAN RANGKA BAJA BENTANG 50 METER." PROKONS Jurusan Teknik Sipil 9, no. 2 (2015): 106. http://dx.doi.org/10.33795/prokons.v9i2.96.

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To facilitate the flow of transport from one region to the other region dan increase sectors of the economy the need for bridges as a means of connecting. Steel bridge is the one arranged from steel beam joined with gusset plate, binder keeling nails, bolts or welding. The purpose of the study is to design a 50 m-spam steel truss bridge of 10,4 m width. The design was based on Highway Bridge Loading Design, ASD and PPBBI 1984. The concrete strength is of (fc ') 30 MPa and the steel strength of BJ 44. Designed manually with no pillar, the bottom only consists of abutment and foundation. The mai

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29

Gorączko, Aleksandra, Jacek Sztubecki, Adam Bujarkiewicz, and Szymon Topoliński. "Displacements of Object Founded on Expansive Soils—A Case Study of Light Construction." Geosciences 10, no. 4 (2020): 153. http://dx.doi.org/10.3390/geosciences10040153.

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The paper presents results of observations of a light structure damaged by irregular vertical and horizontal deformations on Neogene expansive clays, typical for area in Central Poland. The sensitivity to environmental changes of humidity in such subsoils can activate volume changes, which causes the destruction of many objects susceptible to deformation. Detailed geotechnical investigations, including seasonal fluctuations of natural moisture content, were carried out for over a year, describing the dynamism of conditions of clays in the foundation zone. Parallel geodetic measurements of vert

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30

Pires, J. "Heats of Adsorption of N-Hexane by Thermal Gravimetry with Differential Scanning Calorimetry (TG-DSC): A Tool for Textural Characterization of Pillared Clays." Clays and Clay Minerals 48, no. 3 (2000): 385–91. http://dx.doi.org/10.1346/ccmn.2000.0480309.

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31

Kloprogge, J. Theo, Loc V. Duong, and Ray L. Frost. "A review of the synthesis and characterisation of pillared clays and related porous materials for cracking of vegetable oils to produce biofuels." Environmental Geology 47, no. 7 (2005): 967–81. http://dx.doi.org/10.1007/s00254-005-1226-1.

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32

Kolonskikh, Alexander G. "Bakhmutino Culture Fortifications of the Urazgildino Hillfort." Ufa Archaeological Herald 24, no. 4 (2024): 697–707. https://doi.org/10.31833/uav/2024.24.4.046.

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The work considers the data obtained during the study of Urazgildino hillfort fortifications (Tatyshlinsky District, Bashkortostan). The main archaeological material discovered during the excavations is ceramics, which allows to date the cultural layer and the studied structures back to a wide range of the 4th–8th centuries AD. The fortifications themselves were probably not used for long. The research focuses on fortifications that constituted earth-and-timber structures compiled as hook-type walls. The log wall of the hillfort was reinforced with vertical pillars. The fortifications were pac

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33

Bousamid, Anwar, Btissam Mzabri, Jamal Benyazid, Zerhoune Messaoudi, Abdelmajid Belabed, and Abdelbasset Berrichi. "THE EFFECT OF IRRIGATION DOSES ON THE PRODUCTIVITY OF Citrus clementina variety “Fina Berkane”, A VARIETY OF CLEMENTINE PRODUCED IN TRIFFA PLAIN, NORTH EASTERN MOROCCO." Journal of Experimental Biology and Agricultural Sciences 9, no. 4 (2021): 432–38. http://dx.doi.org/10.18006/2021.9(4).432.438.

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Morocco is a Mediterranean country with an economy based on exporting agricultural products mainly to Europe. However, the ongoing climate change characterized by the frequency and the intensity of drought, along with the regularity of the rainfall is undeniably affecting the productivity of major agricultural products in Morocco. Citriculture is one of the key pillars of agricultural products in Moroccan conditions and the productivity of citriculture is tightly related to water management. To reduce this dependency under climatic change, a pilot study, over three years, has been launched to

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34

Lee, Byongho. "Review of the Research History of the Relics Excavated from the Temple Site in Gunsu-ri, Buyeo." Institute for Historical Studies at Chung-Ang University 56 (August 31, 2022): 5–65. http://dx.doi.org/10.46823/cahs.2022.56.5.

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This report attempts to arrange the research history of the major remains and relics excavated from the Temple Site in Gunsu-ri, Buyeo, with a view to promoting inter-academy studies on the results of the excavation of the site, which dates from the Sabi Period of Baekje (538-660). Chapter II introduces the background to the discovery of the temple site in Gunsu-ri, which was the first such site to be found in Buyeo during the Japanese colonial era, and its investigation process, and then summarizes the report that was published after the excavation and investigation, the academic report

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35

Vetokhov, Sergey V. "Meroitic building techniques: some observations from Abu Erteila (Sudan). Сonstruction materials and methods." Vostok. Afro-aziatskie obshchestva: istoriia i sovremennost, № 2 (2023): 37. http://dx.doi.org/10.31857/s086919080022157-9.

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The article is devoted to the general tendencies in the architecture of the Meroit period (c. 3rd century BC – 4th century AD) of the Kingdom of Kush (c. 9th century BC – 4th century AD), local building materials and technologies that determined the distinctive appearance of Meroitic architecture. Construction activity under Natakamani and Amanitore rules covered almost the entire territory of the state. By the 1st century BC the Meroe district had significant resources and became a large centre of monumental architecture, around which cult complexes were built in the neighboring settlements,

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36

Polshikova, N. V. "DEVELOPMENT AND FORMATION OF ARCHITECTURAL AND CONSTRUCTION TRADITIONS OF THE STEPPE AND FOREST-STEPPE ZONES OF EASTERN EUROPE FROM THE 5TH TO THE 7TH CENTURIES." Problems of theory and history of architecture of Ukraine, no. 20 (May 12, 2020): 188–95. http://dx.doi.org/10.31650/2519-4208-2020-20-188-195.

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This article is the fourth of the general topics«Development and formation of architectural and construction traditions of the steppe and forest-steppe zones of Ancient Russia. In the process of studying historical and archaeological facts, tere arefollowing:The main type of settlements of the early medieval period of the 5th-7th centuries in all territories of Slavs' residence –uninhibited villages along the banks of rivers and lakes on low floodplain terraces with an area of 0.25-1.0 ha, but in Moldova -up to 1.2 ha, in Podolia –up to 1.5 ha, inSmolensk –up to 7.0-8.0 ha. In the Upper Dniest

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37

Kebena, Gebeyehu Motora1* Dejene Ayele Tesema2. "REMOVAL OF FLUORIDE FROM AQUEOUS SOLUTION USING FIRED CLAY SOIL PILLARED WITH TEA LEAF ASH COMPONENTS." April 30, 2017. https://doi.org/10.5281/zenodo.2526047.

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This study reports on the adsorption of fluoride ion from aqueous solutions by using fired clay soil, pillared with tea leave ash components. The potential of low cost material fired clay soil and fired clay soil pillared with tea leave ash components for fluoride removal from aqueous solution was evaluated by using fluoride ion selective electrode. Pillaring of clay soil with tea leave ash was done by thoroughly mixing fifteen gram of tea leave ash and three hundred gram of clay soil using distilled water and it was aged for 96 hours until it was dried. Untreated clay soil and clay soil pilla

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38

Kebena, Gebeyehu Motora1* Dejene Ayele Tesema2. "REMOVAL OF FLUORIDE FROM AQUEOUS SOLUTION USING FIRED CLAY SOIL PILLARED WITH TEA LEAF ASH COMPONENTS." September 30, 2017. https://doi.org/10.5281/zenodo.2526843.

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This study reports on the adsorption of fluoride ion from aqueous solutions by using fired clay soil, pillared with tea leave ash components. The potential of low cost material fired clay soil and fired clay soil pillared with tea leave ash components for fluoride removal from aqueous solution was evaluated by using fluoride ion selective electrode. Pillaring of clay soil with tea leave ash was done by thoroughly mixing fifteen gram of tea leave ash and three hundred gram of clay soil using distilled water and it was aged for 96 hours until it was dried. Untreated clay soil and clay soil pilla

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39

Soinne, Helena, Riikka Keskinen, Mika Tähtikarhu, Jukka Kuva, and Jari Hyväluoma. "Effects of organic carbon and clay contents on structure‐related properties of arable soils with high clay content." European Journal of Soil Science, October 11, 2023. http://dx.doi.org/10.1111/ejss.13424.

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AbstractUnderstanding of factors governing soil structural features is necessary for managing key processes affecting crop productivity and environmental impacts of agriculture, e.g., soil water balance, aeration, and root penetration. Organic matter is known to act as a major binding agent in soil aggregation and thus constitutes a central pillar in soil structure formation. However, knowledge of the structural role of organic matter or carbon (OC) in soils highly rich in clay sized particles (<0.002 mm) is limited. In this study, the effects of clay and OC contents on aggregate stability,

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40

Hussein, Nermin, Shereen Saad, Khaled Refaie, Wael Sultan, Mohamed Ghonimy, and Ahmed Alzoheıry. "Air injection in Subsurface Drip Irrigation as an Efficient Method for Zucchini Production." Turkish Journal of Agricultural Engineering Research, December 11, 2024. https://doi.org/10.46592/turkager.1574644.

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Agriculture is a key pillar of the economy, constantly facing challenges due to population growth and climate change. Enhancing the sustainability and efficiency of crop production and improving water use efficiency are essential. to evaluate air injection into subsurface drip irrigation system for zucchini production as efficient method for subsurface drip irrigation systems to improve water use efficiency (WUE), and zucchini production in heavy clay soils. Results showed that injecting air through built-in emitters using a compressor during the last third of the irrigation time maintained ac

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41

erik, sørlie, O. Hartnik Lukas, Anh Tran Quoc, et al. "Physical model tests of clay-rich submarine landslides and resulting impact forces on offshore foundations." August 10, 2023. https://doi.org/10.5281/zenodo.8232492.

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Experimental model tests on submarine landslides have been conducted to quantify complete slide events and to determine impact forces on a foundation pillar for clay-rich submarine landslide events on steep slopes. In total, 21 experiments were conducted, where the differences between the experiments were bed inclination and soil properties. All experiments were performed with kaolin clay, where water contents and consolidation time were varied. Each model test was triggered by rapidly increasing the bed inclination of a box containing the slide material. The model tests st

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42

Ortiz-Polo, Araceli, Rosa M. Richards-Uribe, Elena M. Otazo-Sánchez, et al. "New Organo-Inorganic Materials for Water Contaminants Remediation." MRS Proceedings 1007 (2007). http://dx.doi.org/10.1557/proc-1007-s04-38.

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ABSTRACTMaterials with high specific surface areas such as pillared clays and zeolites have been studied and can be used to remediate contaminated water. Chemical functionality or compounds can be anchored or attached to the surface of a low-cost material used as a support matrix. This work studied the suitability of inexpensive natural mineral soils to decontaminate waste water from mine and metallurgic industries. Native mineral soils were also impregnated with commercial 1,3 diphenyltiourea (DFT) to improve retention of heavy metal ions. The natural mineral soils were from Hidalgo State in

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