Results 21 to 30 of about 2,167,372 (274)

Agglomeration experiment of secondary copper sulfide ore

工程科学学报, 2019
The presence of a large amount of fine particles and muddy ore during the heap leaching process leads the occurrence of low leaching rate. Herein, agglomeration experiments using low-grade secondary copper sulfide ore were conducted to enhance the poor ...
YIN Sheng-hua, CHEN Wei, LIU Jia-ming, SONG Qing   +3 more
doaj   +1 more source

Strength Deterioration of Earthen Sites Loess Solidified by Calcined Ginger Nuts under Dry–Wet and Freeze–Thaw Cycles

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, Bing Dang, Dandan Li, Xiaoying Hu   +3 more
doaj   +1 more source

Shear strength deterioration of geopolymer stabilized loess under wet-dry cycles: mechanisms and prediction model

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, ZHANG Xing, HAO Ruo-yu, BAO Wei-xing   +3 more
doaj   +1 more source

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, Haoyang Zhang, Yanrui Guo, Song Yin, Kebin Ren   +4 more
doaj   +1 more source

Wet Strength Properties of Handsheet Paper from Empty Oil Palm Fruit Bunch Pulp by the Addition of Polyethylene Imine [PDF]

E3S Web of Conferences
Indonesia 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., Pratikha Rycce S., Karo-Karo Justaman A., Hutajulu Poltak E., Fernandez Benny R.   +4 more
doaj   +1 more source

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
doaj   +1 more source

Redispersibility of Paper Under Low Agitation and How It Deteriorates over Time

Recycling
In many paper applications the paper is supposed to disintegrate into its constituating fibers after disposal. This happens in water with only very little input of mechanical energy.
Andrea Christine Pfennich, Ulrich Hirn
doaj   +1 more source

Deterioration characteristics of cement-improved loess under dry-wet and freeze-thaw cycles.

PLoS ONE, 2021
The effects of cement dosage, compaction coefficient, molding method (vertical vibration method and static pressure method), and dry-wet and freeze-thaw cycles on the mechanical strength of cement-improved loess (CIL) were studied to reveal its strength ...
Ying-Jun Jiang, Chen-Yang Ni, Hong-Wei Sha, Zong-Hua Li, Lu-Yao Cai   +4 more
doaj   +1 more source

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
doaj   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

FEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose, Kotaro Ozaki, Ryohei Kuriyama, Yuka Ikemoto, Kazuhiro Mio, Yuji C. Sasaki, Tatsuya Arai, Sakae Tsuda, Yoichi Shinkai, Masahiro Kuramochi   +9 more
wiley   +1 more source