Results 11 to 20 of about 72,246 (218)

Polyurethane foam lightweight concrete: Preparation, CO2 fixation properties and mechanism

Journal of CO2 Utilization
To enhance the carbon sequestration of concrete and the mechanical properties of polyurethane foam concrete (PFC), a novel formulation was developed using ordinary Portland cement, basalt stone powder, diphenylmethane diisocyanate, and polyether polyol ...
Ping Jiang, Fuping Wang, Na Li, Wei Wang, Baozhong Wang, Pengfei Yu   +5 more
doaj   +1 more source

Soil-structure interaction analysis considering concrete creep and shrinkage

Revista IBRACON de Estruturas e Materiais, 2018
The paper presents some results from Rosa’s [1] research that aimed to verify the effect of creep and shrinkage of the concrete in soil-structure interaction. The construction consists in a 17 storeys building.
L. M. P. ROSA, B. R. DANZIGER, E. M. L. CARVALHO   +2 more
doaj   +2 more sources

Preparation and application conductive concrete from iron tailings to the teaching reform in engineering materials courses

Scientific Reports
The conversion of iron tailings, a mining solid waste, into conductive concrete aligns with green engineering and supports the development of intelligent construction materials. This study employed a four-factor, four-level orthogonal test to investigate
Ping Jiang, Xingchen Hu, Wei Wang, Lei Shi, Yanfei Yu, Na Li   +5 more
doaj   +1 more source

Frost resistance and micro mechanism of metakaolin and polypropylene fiber modified coastal cement soil

Journal of Materials Research and Technology
In order to investigate the effects of metakaolin and polypropylene (PP) fiber on the macroscopic mechanical properties and microscopic mechanisms of cement soil subjected to freeze-thaw cycles, a series of unconfined compressive strength (UCS) and ...
Xukun Ma, Pengfei Wei, Ping Jiang, Haoqing Xu, Na Li, Sijia Qian, Wei Wang, Guoxiong Mei   +7 more
doaj   +1 more source

Dynamic Analysis of Isolated Machine Foundation by Finite Element Method [PDF]

Engineering and Technology Journal, 2005
In this work, the study is made upon the dynamic behaviour of isolated foundations supporting vibrating machinery considering the effect of soil- structure interaction.
Mohamad Essa, Thaer Saeed Abdul-Hameed
doaj   +1 more source

Transcripts enriched in codons that trigger P‐site tRNA‐mediated mRNA decay possess stable mRNA

FEBS Open Bio, EarlyView.
PTMD codons were first described by Mendel et al. as mediators of an mRNA decay pathway dependent on the human protein CNOT3, homologous to yeast Not5. Our findings confirm that PTMD codons destabilize transcripts; however, unlike in yeast, the human pathway specifically targets and slightly destabilizes primarily stable mRNAs.
Rodolfo Lopes Carneiro, Fernando Lucas Palhano   +1 more
wiley   +1 more source

Short-term mechanical properties and microstructure of coastal cement soil modified by sugarcane bagasse ash

Results in Engineering
Sugarcane bagasse ash is a kind of agricultural waste with a large quantity and good volcanic ash reactivity, it is necessary to find a way to reasonably utilize it to prevent environmental pollution caused by long-term accumulation.
Liming Yao, Jiawei Yang, Xukun Ma, Pengfei Wei, Yunfeng Wang, Wei Wang, Na Li   +6 more
doaj   +1 more source

How phagocytic cells kill bacteria: Lessons from a professional killer

FEBS Open Bio, EarlyView.
How phagocytic cells ingest and kill bacteria has been studied for more than a century, but many questions remain unanswered. The study of the amoeba Dictyostelium discoideum brings new answers, and new questions. Professional phagocytic cells such as neutrophils and macrophages, as well as free‐living soil amoebae like Dictyostelium discoideum, employ
Otmane Lamrabet, Pierre Cosson
wiley   +1 more source

Soil utilization of solid waste: Small-strain dynamic properties and microscopic mechanism of phosphogypsum-modified coastal cement soil

Journal of Materials Research and Technology
Phosphogypsum (PG), a solid waste from the wet process phosphoric acid industry, but the utilization rate is low at present. The effect of phosphogypsum and cement on small strain dynamic characteristics of coastal soft soil was studied by resonance ...
Yingdi Pang, Na Li, Meixin Fan, Ping Jiang, Aizhao Zhou, Wei Wang   +5 more
doaj   +1 more source

Seismic Resistance and Displacement Mechanism of the Concrete Footing

Shock and Vibration, 2019
A realistic seismic simulation of the concrete footing has been made by using finite element method (FEM) software called ABAQUS. The effect of concrete footing embedment in soil on concrete footing-soil foundation interaction has numerically been ...
Abdoullah Namdar, Yun Dong
doaj   +1 more source