Results 21 to 30 of about 620,870 (296)
Atmosphere, 2023 Earthen sites are a kind of constructure with significant historical and cultural value. However, the destruction of earthen sites caused by erosion occurs frequently.
Qifeng Li +3 more
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Effect of Dry-Wet Cycles on Strength Properties and Microstructure of Lime-Metakaolin-Modified Soil
Advances in Civil Engineering, 2022 To explore the feasibility of replacing natural hydraulic lime (NHL) with lime-metakaolin (L-MK) in the restoration of soil sites, the samples of L-MK-modified silty sand (hereinafter L-MK-modified soil) underwent 0, 5, 10, and 15 dry-wet cycles and were
Xinming Li +4 more
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Rock and Soil Mechanics, 2022 The loess was stabilized using geopolymer (GP). Triaxial compression tests were conducted on stabilized loess with varied GP contents subjected to wet–dry cycles.
CHEN Rui +3 more
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Cellulose oxidation by Laccase-TEMPO treatments [PDF]
, 2017 In this work, laccase-TEMPO (Lac-T) treatments were applied to bleached commercial dissolving pulp in order to introduce carbonyl and carboxyl groups, which were found to improve dry and wet strength-related properties.
Quintana, Elisabet +3 more
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Wet Strength Properties of Handsheet Paper from Empty Oil Palm Fruit Bunch Pulp by the Addition of Polyethylene Imine [PDF]
E3S Web of ConferencesIndonesia as the largest producer of crude palm oil has a largest oil palm plantation. To support the sustainability of the production, several large oil palm nursery produces around 122 million seeds per year and this amount is equivalent to the number ...
Dina Sari F. +4 more
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Preparation of Wet Strength Paper from Filter Paper with NaOH-Thiourea-Urea Aqueous Solution
BioResources, 2014 In this work, wet strength paper was prepared from quantitative filter paper pretreated with NaOH-thiourea-urea aqueous solution. The effects of alkali concentration, soaking time, freezing time, and washing time were evaluated through single factor ...
Rui Zhai, Yue Yuan, Xiaofan Zhou
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Studies On The Wet Strength Paper
Journal of the Japanese Technical Association of the Pulp and Paper Industry, 1951 The process of preparation of urea melamine formaldehyde copolycondensates according to Wohnsiedler and others is improper when 70 mol% or more of urea are to be used, the resin colloidal solution coagulates in the case of such high ureacontent to soft white jellies or white insolubles precipitates in a short time.
Isamu Yoshino, Shozo Senda
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Compression behavior and structure of undisturbed Q2 loess under wet-dry cycles
Soils and Foundations, 2022 In the Loess Plateau of China, the undisturbed Q2 loess is in a state of wet-dry cycles due to seasonal rainfall and groundwater level fluctuations. The root cause of large deformation and poor stability of engineering foundation caused by wet-dry cycles
Jianghong Zhu, Shuxian Han, Huyuan Zhang
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Thermal oxidation of nickel disilicide [PDF]
, 1982 The thermal oxidation characteristics of nickel disilicide on Si substrates have been investigated in the temperature range of 700–900 °C in dry oxygen and wet oxygen. A surface layer of SiO2 grows parabolically in time. The growth rate is independent on
Bartur, M., Nicolet, M-A.
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Mechanical strength of wet particle agglomerates [PDF]
Mechanics Research Communications, 2018 À l'aide de simulations de dynamique des particules, nous étudions la résistance et la microstructure des agglomérats de particules frottantes humides soumises à une compression axiale. Le modèle numérique tient compte des effets cohésifs et visqueux du liquide de liaison jusqu'à une distance de déliaison avec le liquide supposé réparti de manière ...
Thanh‐Trung Vo +6 more
openaire +4 more sources