Results 21 to 30 of about 21,602,709 (249)

Study on vibration-reduction performance of water-lubricated stern bearing with fluid-saturated perforated slab

Zhongguo Jianchuan Yanjiu, 2019
[Objectives]As the first element to support the shaft and transfer the vibration, water-lubricated stern bearing becomes an important part of ship shafting.
Jin Yong, Kuang Junxin, Tian Xiangyu, Lao Kunsheng, Ouyang Wu, Liu Zhenglin   +5 more
doaj   +1 more source

The instability mechanism of shallow tunnel entrances in silty clay strata and corresponding remediation strategies

KSCE Journal of Civil Engineering
The stability of weak surrounding rock at shallow mountain tunnel entrances poses significant challenges. This study investigates the collapse mechanism of the silty-clay layer at the entrance of the Dajin No 1 Tunnel using an integrated approach ...
Bo Yan, Lei Kang, Wenqiang Wang, Ze Mei, Yongwei Wang, Jingyi Liu, Xinjin Zhang, Wenmin He   +7 more
doaj   +1 more source

Flexural Behavior of the Innovative CA-UHPC Slabs with High and Low Reinforcement Ratios

Advances in Materials Science and Engineering, 2019
This paper presents an experimental study on the flexural behavior of an innovative CA-UHPC (ultrahigh-performance concrete containing coarse aggregate) slab with high and low reinforcement ratios. A total of eighteen CA-UHPC slabs were tested to failure
Yu Feng, Jianan Qi, Jingquan Wang, Jiaping Liu, Jianzhong Liu   +4 more
doaj   +1 more source

Nanostructured high-performance concretes based on low-strength aggregates

Magazine of Civil Engineering, 2022
In the modern world, construction is often located in remote and hard-to-reach regions, where there are no acceptable quality aggregates for concrete. The transportation of high-quality aggregates leads to a significant increase in the cost of concrete ...
Rassokhin Aleksandr, Ponomarev Andrey, Karlina Antonina   +2 more
doaj   +1 more source

Directional Diffusion Probabilistic Modelling With Fuzzy Similarity Fields for Multipolarized Petrographic Registration

Modelling and Simulation in Engineering
Accurate registration of multipolarized petrographic thin-section images is essential for quantitative characterization of rock microstructures under plane-polarized and cross-polarized illumination.
Wenqiang Wang, Bowei Chen, Bo Yan, Xin Chen, Wenmin He, Yongwei Wang, Lei Peng, Andong Wang   +7 more
doaj   +1 more source

The radiation protection and high temperature performance of serpentine-magnetite mixed concrete

Case Studies in Construction Materials
In this paper, the high density of magnetite and the high crystal water content of serpentine are used to configure concrete with high temperature resistance, gamma ray shielding and neutron shielding properties, and adjust the proportion of magnetite ...
Zhenfu Chen, Yangzi Li, Qiongfang Wu, Lincheng Luo, Liping Xie, Du Deng, Dan Wu   +6 more
doaj   +1 more source

Influences of surface modification of nano-silica by silane coupling agents on the thermal and frictional properties of cyanate ester resin

Results in Physics, 2018
The surface of nano-silicon dioxide (nano-SiO2) particles was modified by small molecular coupling agent KH-560 and macromolecular coupling agent SEA-171, respectively, to change the surface activity and structure.
Wang Chuang, Jiao Geng-sheng, Peng Lei, Zhu Bao-lin, Li Ke-zhi, Wang Jun-long   +5 more
doaj   +1 more source

Self‐Regulated Learning Meets AI: Reinterpreting Self‐Regulation, Co‐Regulation, and Socially Shared Regulation in Human–AI Interaction

New Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Advancing artificial intelligence (AI) has transformed learning and work, yet higher education and professional development programs have not systematically equipped learners for AI‐prevalent environments. This lack of preparation creates uncertainty regarding control, responsibility, trust, and accountability.
Moon‐Heum Cho, Jerusalem Merkebu
wiley   +1 more source

Influence of Manufactured Sand Gradation and Chloride-Free Alkali-Free Accelerator (CFAFA) on the Performance of Shotcrete

Advances in Civil Engineering
Aiming at the deficiencies in the design of the proportion of the mechanism sand shotcrete, this study systematically investigated the influence of mechanism sand gradation and stone powder content on the working performance, mechanical properties, and ...
Yongwei Wang, Bo Yan, Wenmin He
doaj   +1 more source

Preparation and Properties of Sintered Brick with Polyaluminum Chloride Slags

Kuangchan zonghe liyong
In order to solve the problem of stockpiling and resource waste of polyaluminum chloride slags in the chemical industry, this paper uses polyaluminum chloride slags as raw materials to prepare sintered bricks with polyaluminum chloride slags at high ...
Fuqian HEI, Fei XU, Guodong ZHAO, Dan LU, Qing LIU   +4 more
doaj   +1 more source