Results 41 to 50 of about 966,566 (260)
EFFECT OF MAGNESIUM, FARMYERD MANURE AND MINERAL FERTILIZERS ON YIELD, YIELD COMPONANETS AND NUTRIENT CONTENTS OF SOME FLAX GENOTYPES ON SANDY SOILS. [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2002 Two field experiments were conducted during 200012001 and 200112002 growing seasons on sandy soil at lsmalia Agric. Res. Station to study the effect of magnesium (0,100 and 200ppm) as a foliar spray, Farmyard manure and mineral fertilization on yield,
A.M.A. EI-Azouni, SH. M. Abd EI-Rasoul
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The Transverse Bearing Characteristics of the Pile Foundation in a Calcareous Sand Area. [PDF]
Materials (Basel), 2022 Reviewing literature revealed that the studies on the bearing characteristics of pile foundations mainly focuses on clay, ordinary sand, loess, saline soil, and other areas.
Hu H +7 more
europepmc +2 more sources
Dynamic strength of temperature-controlled MICP-treated calcareous sand
Yantu gongcheng xuebao, 2021 A series of undrained cyclic triaxial tests are carried out for calcareous sand treated by temperature-controlled MICP (microbially induced calcium carbonate precipitation) technology, and the dynamic strength characteristics of MICP-treated calcareous ...
XIAO Peng 1, 2, 3, LIU Han-long 1, 2, ZHANG Yu 1, 2, JIANG Xiang 1, 2, LI Chi 4, CHU Jian 5, XIAO Yang 1, 2,
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Journal of Marine Science and Engineering, 2023 Calcareous sand is a special marine soil rich in calcium carbonate minerals, characterized by brittle particles. It is, therefore, widely used as a filling material in the construction of islands and reefs.
Kangyu Wang +4 more
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Maximum shear modulus of calcareous sand in Dejebel Dahar, Tunisia and its dependency on applied stress [PDF]
E3S Web of Conferences, 2019 The present experimental investigation aims at investigating the small strain stiffness of calcareous sand as a function of applied stress. The calcareous sand was sampled at Tunisia's Dejebel Dahar region, and the shear wave velocity (Vs) of calcareous ...
Choo Hyunwook +3 more
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SWCC of Calcareous Silty Sand Under Different Fines Contents and dry Densities
Frontiers in Environmental Science, 2021 Investigating the soil-water characteristics of calcareous soil has a great significance for preventing geological disasters on island-reefs as well as maintaining the foundation stability of hydraulic-filled island-reefs. In this study, calcareous silty
Jian-Hua Shen +4 more
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Experimental study on thermal conductivity of calcareous sand
Yantu gongcheng xuebao, 2019 The thermal conductivity of calcareous sand in the South China Sea is measured under different conditions by the thermal probe method, and the effects of water content, dry density, temperature, particle size and other factors on the thermal conductivity
FU Hui-li 1, 2, MO Hong-yan 2, ZENG Zhao-tian 1,2, ZHENG Chuan 1, 2, XU Yun-shan 2
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Yantu gongcheng xuebao, 2021 Calcareous sand is widely distributed on the coastal continental shelf and coastline and is the important geotechnical material for coastal engineering.
WANG Lei 1, JIANG Xiang 1, 2, XIAO Yang 1, 2, WU Huan-rang 1, 2, SHAN Jun-jie 1, LIU Han-long 1, 2, YAO Zhi-hua 3
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Yantu gongcheng xuebao, 2019 The dynamic shear modulus and damping ratio are two important parameters for the dynamic stability analysis of geotechnical structures and offshore sites.
LIU Xin 1, LI Sa 1, LIU Xiao-long 2, CHEN Wen-wei 2
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Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron
Angewandte Chemie, EarlyView.Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej +20 more
wiley +2 more sources