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Kun Zhang, Pengbo Chang, Jianxi Ren, Zheng Liu and Ke Wang
The fractured rock mass in the western cold region is affected by freezing and thawing disasters and is prone to local damage and fracture along the fissures? ends. The fatigue damage induced by repeated frost heave and traffic loads seriously endangers ...
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Michele Porto, Paolino Caputo, Abraham A. Abe, Valeria Loise and Cesare Oliviero Rossi
In the asphalt industry, bituminous emulsions are widely used in road pavement operations and in building/construction processes such as cold mix asphalt and waterproofing processes, respectively. A very important fact to keep in mind is that not all typ...
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David R Katerere, Andrew Serage, Jacobus N Eloff
Pág. 108 - 114
Aims: To isolate the antibacterial compounds and to investigate the activity of extracts of, and the antibacterial flavonoids isolated from leaves of Combretum apiculatum against four important community-acquired and nosocomial bacterial pathogens v...
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Jiaxian Wang, Yunkai Ji, Changling Liu, Qingguo Meng, Yapeng Zhao, Zhun Zhang, Jianye Sun, Lele Liu and Fulong Ning
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Corinna Dawid and Karina Hille
The breeding of stress-tolerant cultivated plants that would allow for a reduction in harvest losses and undesirable decrease in quality attributes requires a new quality of knowledge on molecular markers associated with relevant agronomic traits, on qua...
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Mariagrazia Tortora, Stefano Sfarra and Cinzia Casieri
Application of two-dimensional nuclear magnetic resonance relaxometry (2D 1H-NMR-R) and higher-order statistics thermography (IRT-HOS) for inspecting cellulose materials in a non-destructive and non-invasive way.
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Zipeng Wang, Yue Zhu, Zhenxue Jiang, Houjian Gong, Yu Yang, Bo Wang and Xin Wang
The continental shale oil resource in China exhibits significant potential and serves as a crucial strategic alternative to the country?s conventional oil and gas reserves. The efficacy of shale oil exploration and production is heavily contingent upon t...
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Prio Santoso
Pág. 54 - 61
Isolation of flavonoid compounds from Plants Roots Leather Breadfruit (Artocarpus altilis (Parkinson) Fosberg) that grow in the village of Banjar District State Tanggamus Wonosobo regency of Lampung Province has been conducted. Isolation of flavonoid com...
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Tao Meng, Huadong Wei, Kanjun Ying and Menghua Wang
Moisture diffusion in cement-based materials significantly impacts its durability. In this study, we analyzed the effect of adding a waterproofing agent and nano-SiO2 (NS) on the water transportation process in mortar using capillary water absorption tes...
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Bowen Kong, Fan Xia, Bingqi Yu, Tangdai Xia and Zhi Ding
Artificial freezing methods can help highlight the mechanical properties of marine clay. The construction of cross passages in metro tunnels employs the freezing method. Freeze?thaw circulation, which is part of the process, affects the engineering prope...
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Zhangren Tu, Huiting Liu, Jiaying Zhan and Di Guo
Multidimensional nuclear magnetic resonance (NMR) spectroscopy is one of the most crucial detection tools for molecular structure analysis and has been widely used in biomedicine and chemistry. However, the development of NMR spectroscopy is hampered by ...
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Marcin H. Kudzin, Renata Zylla, Zdzislawa Mrozinska and Pawel Urbaniak
The reactions of (N-(PhosphonoMethyl)Glycine) PMG with H2O2 in homogenous systems were investigated using 31P NMR (Nuclear Magnetic Resonance). These reactions were carried out in two reaction modes: without UV radiation and under UV radiation. The react...
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Dan Jin, Zejun Lang and Wu Yao
The change of the evaporable water content in the early hydration process of cement paste with different water-to-cement ratios was monitored by low field nuclear magnetic resonance (LF-NMR) relaxometry. The hydration degree and gel/space ratio were acco...
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Qingzhong Zhu, Yanhui Yang, Xiuqin Lu, Dameng Liu, Xiawei Li, Qianqian Zhang and Yidong Cai
Coalbed methane (CBM) mainly adsorb in massive pores of coal. The accurate characterization of pores benefits CBM resource evaluation, exploration and exploitation. In this paper, mercury intrusion porosimetry (MIP) and low temperature nitrogen adsorptio...
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Shaolong Li, Changlian Xu, Wenfeng Yang and Qingru Tang
We report an efficient and green approach to synthesize a linear castor oil-based polyurethane (CPU) without using any solvent or catalyst. Diol monomers were first synthesized by the aminolysis reaction between castor oil and diamines; this was accompli...
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Shaolong Li, Changlian Xu, Wenfeng Yang and Qingru Tang
We report an efficient and green approach to synthesize a linear castor oil-based polyurethane (CPU) without using any solvent or catalyst. Diol monomers were first synthesized by the aminolysis reaction between castor oil and diamines; this was accompli...
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Xiyang He, Chengyu Liu, Xiangxiang Zhang, Changyu Wu and Zhiyu Weng
In South China, due to climatic factors, highly weathered granite is distributed across a large area and easily disintegrates after encountering water, causing many geological disasters and other problems. To determine the disintegration mechanism of hig...
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Yu Yin, Ziteng Cui, Xiao Zhang, Jian Song, Xueyi Zhang, Yongqiang Chen and Zhi Dou
Clay is widely encountered in nature and directly influences seepage behaviors, exerting a crucial impact on engineering applications. Under low hydraulic gradients, seepage behaviors have been observed to deviate from Darcy?s law, displaying a non-linea...
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Yan Xi, Junhao Xing, Jiajia Feng, Congming Ma, Xiutian Yang, Yudong Tian and Xin Liu
Cement has been widely used as a structural material in many underground projects, and these projects often face high- or ultra-high-temperature environments, leading to the deterioration of the mechanical, porosity, and permeability properties of set ce...
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Kangning Liu, Sheliang Wang, Xiaoyi Quan, Jing Wu, Jin Xu, Nan Zhao and Bo Liu
In this study, iron ore tailings (IOTs) are used as aggregates to prepare iron-ore-tailing-engineered cementitious composites (IOT-ECCs) to achieve clean production. Some mechanical indexes, such as compressive strength (fcu), four-point flexural strengt...
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