Results 81 to 90 of about 364,843 (227)

Hierarchically Rough rGO/HAp Nanocoatings on SLM Ti–6Al–4 V Implants for Enhanced Biointegration

Small, EarlyView.
This study investigates HAp/rGO bioactive coatings on Ti‐6Al‐4V fixation implants fabricated by selective laser melting with systematically varied volumetric energy density to tailor the as‐built surface state. Composite coatings were deposited by electrophoretic deposition and characterized using micro‐CT, profilometry, FESEM/EDS, and detailed XPS to ...
Muhammad Usama Zaheer, Vahid Jahed, Rajveer Singh Rajaura, Fatemeh Rastegar Adib, Muhammad Hassan Razzaq, Gökhan Demirel, Mobarak Abu Mraheil, Thaqif El Khassawna, Mehmet Fatih Aycan, Yogendra Kumar Mishra   +9 more
wiley   +1 more source

Control of City Shallow Buried Tunnel Blasting Hazard to Surface Buildings

MATEC Web of Conferences, 2015
Combining with the blasting test of an under-construction tunnel, this paper optimizes the overall blasting construction scheme. The optimized blasting scheme is used in the site construction test and the peak particle vibration velocity is strictly ...
Yang Deqiang, Chi Enan, Ji Yucheng, Liu Jia, Wang Xuguang, Zhao Mingsheng, Tao Tiejun, Wang Yang   +7 more
doaj   +1 more source

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

Structural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Analysis of critical failure depth of surrounding rock of roadway under blasting disturbance

Gong-kuang zidonghua, 2018
Mathematical expression of critical failure depth of surrounding rock of roadway under blasting disturbance was obtained through elasticity analysis. On the basis, influence rule of roadway excavation radius, blasting vibration speed and cohesion force ...
WANG Xiana
doaj   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source

Spatial response and prediction model for blasting-induced vibration in a deep double-line tunnel

International Journal of Mining Science and Technology
Excessive blasting-induced vibration during drilling-and-blasting excavation of deep tunnels can trigger geological hazards and compromise the stability of both the rock mass and support structures.
Chong Yu, Yongan Ma, Haibo Li, Changjian Wang, Haibin Wang, Linghao Meng   +5 more
doaj   +1 more source

Vibrations from underground blasting

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1975
The Bureau of Mines has investigated vibration levels produced by blasting at four underground sites to establish how such factors as type of explosive, delay blasting, charge weight, and geology affect amplitudes of ground motion. A summary of the work is presented and the results of further analysis of the data are discussed.
Snodgrass, James J., Siskind, D. E.
openaire   +2 more sources

Denoising of blasting vibration signals based on CEEMDAN-ICA algorithm. [PDF]

Sci Rep, 2023
Wenjun B, Yingjie C.
europepmc   +1 more source

Numerical Simulation of the Vibration Response of, and Damage to, a Deep Foundation Pit Under Multiple Blasting Events

Advances in Civil Engineering
To address the disturbance and damage to the surrounding rock and retaining piles caused by blasting excavation in deep foundation pits, the vibration response and cumulative damage under multiple blasting events were investigated through numerical ...
Jingkun Li, Keqiang He, Yanlong Sun, Zeyuan Xia, Linna Sun, Ziyang Liu   +5 more
doaj   +1 more source