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Runqi Guo, Haiying Zhang, Kezheng Chen, Yang Song, Hongxia Li, Lin Ding and Yanjie Liu
In order to improve the seismic performance of reinforced concrete (RC) columns, a reinforcement technology using prestressed steel wire ropes embedded in polyurethane cement composite material is proposed. Four concrete columns reinforced with different...
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Chan-Sol Park, Soo-Jin Ahn, Yeong-Bae Lee and Chang-Ki Kang
In ultrasound diagnostics, acoustic absorbers block unwanted acoustic energy or prevent the reception of echo signals from structures outside the target area. Non-metallic absorbers provide a low-echoic signal that is suitable for observing the anatomy o...
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Shun-Fa Hwang, Yi-Chen Tsai, Cho-Liang Tsai, Chih-Hsian Wang and Hsien-Kuang Liu
A finite element simulation was utilized in this work to analyze the thermoforming process of woven carbon fiber fabric/polyurethane thermoplastic composite sheets. In the simulation that may be classified as a discrete method, the woven carbon fiber fab...
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Nicola Pranno, Francesca De Angelis, Sara Giulia Fischetto, Edoardo Brauner, Mirko Andreasi Bassi, Annalisa Marrapese, Gerardo La Monaca, Iole Vozza and Stefano Di Carlo
Bone density at the implant site is correlated to the success of osseointegration. The objective of this in vitro study was to evaluate the efficacy of osseodensification burs in increasing bone density using a solid polyurethane foam block model. The os...
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M. S. M. Al-kahtani, Han Zhu, Yasser E. Ibrahim, S. I. Haruna and S. S. M. Al-qahtani
Polymer-modified cement mortar has been increasingly used as a runway/road pavement repair material due to its improved bending strength, bonding strength, and wear resistance. The flexural strength of polyurethane?cement mortar (PUCM) is critical in ach...
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Armando Mares Castro, Anayansi Estrada Monje, Alejandra Imelda Saldívar Campos and Anayansi Zaragoza Estrada
This research aims to analyze and optimize the antifungal property of a composite material made of polyurethane (PUR) and silver nanoparticles (AgNPs) against the fungus Trichophyton rubrum to find the optimal parameters that allow the highest inhibition...
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Alberto Gracia, Francisco Javier Torrijo, Julio Garzón-Roca, Miguel Pérez-Picallo and Olegario Alonso-Pandavenes
Sinkholes are a severe problem in urban areas located in karstic regions, especially where evaporitic rocks such as gypsum exist. Identification and proposal of mitigation measures are needed to reduce this geo-hazard effect on buildings and social urban...
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Rin Takada, Kota Hirasawa, Hideaki Takahashi and Makoto Chiba
Recently, new surface treatments for the corrosion protection of Al alloys by forming self-healing layers have attracted the attention of many researchers. The authors of this paper have previously developed self-healing polyurethane coatings with micro-...
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Andrej Fa?alek, Ale? Stra?e, Bogdan ?ega, Johannes A. J. Huber and Milan ?ernek
Beech (Fagus Sylvatica L.) is a prevalent tree species in Slovenia and is suitable for manufacturing glulam beams. However, beech wood has certain limitations that can potentially be mitigated by combining it with Norway spruce (Picea abies (L.) Karst.) ...
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Hao Tian, Tiantian Yi and Yongjun Gong
The prompt removal of ice is crucial to the safe operation of maritime equipment. However, traditional deicing approaches such as steam jets or manual tools are costly in terms of energy consumption and human labor. If the ice interfacial strength can be...
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