Results 41 to 50 of about 364,843 (227)

Study on Vibration Effects and Optimal Delay Time for Tunnel Cut-Blasting Beneath Existing Railways

Applied Sciences
With the development of underground space in urban areas, the demand for tunneling through existing railways is increasing. The adverse effects of cut-blasting during the construction of tunnels under crossing existing railways are investigated. Combined
Ruifeng Huang, Wenqing Li, Yongxiang Zheng, Zhong Li   +3 more
doaj   +1 more source

Experimental Investigation of the Propagation and Attenuation Rule of Blasting Vibration Wave Parameters Based on the Damage Accumulation Effect

Shock and Vibration, 2018
The propagation and attenuation rule of blasting vibration wave parameters is the most important foundation of blasting vibration prediction and control.
Huaibao Chu, Xiaolin Yang, Shuanjie Li, Weimin Liang   +3 more
doaj   +1 more source

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

Energies, 2023
Firstly, the experimental test of blasting vibration was carried out to study the propagation characteristics of the peak particle velocity (PPV) and dominant frequency (DF) of the blasting vibration of layered rock mass under high-pressure gas impact ...
Haixia Wei, Dongbing Li, Jie Zhu, Xiaolin Yang, Huaibao Chu   +4 more
doaj   +1 more source

Biofilm‐Binding Phages Enhance Biofilm Eradication by Synergistic Photothermal and Photodynamic Therapy

Advanced Science, EarlyView.
Engineered phage‐based trifunctional nanofibers are developed for synergistic biofilm eradication. Biofilm‐binding phages, armed with AuNPs and TCPP, serve as both warheads and scaffolds, endowing the phototherapy agents with biofilm‐anchoring ability. Upon light irradiation, AuNPs induce photothermal therapy, while TCPP generates 1O2 for photodynamic ...
Ying Cao, Tao Yang, Rui Wang, Hui‐Da Li, Xiao‐Yu Zhang, Feng Cheng, Ying Liu, Jian‐Hua Wang, Ting Yang, Chuanbin Mao   +9 more
wiley   +1 more source

Field test of blasting vibration and adjacent slope stability under the influence of blasting vibration in mining [PDF]

, 2023
Blasting mining in open-pit has a significant impact on the adjacent slope, which often causes the rock mass cracking and spalling of the slope to form a landslide disaster.
Honghua Jin, Zhu, Ziqiang, Ren, Qingyang, Chen, Bin, Can Liu, Liu, Can, Songjun Cui, Bin Chen, Jin, Honghua, Feifei Wang, Qingyang Ren, Ziqiang Zhu, Wang, Feifei, Cui, Songjun   +13 more
core   +1 more source

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

Advanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu, Weicheng Liao, Pinchen Luo, Mengchen Jin, Tangming Yan, Xing Zhao, Qingshan Wang   +6 more
wiley   +1 more source

Research on Micro-Vibration Blasting Tunneling Construction of Large-Span Metro Station in Hard Rock

Chengshi guidao jiaotong yanjiu
ObjectiveFor the tunnel construction of large-span metro stations in hard rock, it is necessary to investigate the applicability and vibration effect characteristics of micro-vibration blasting method in order to improve the conventional blasting ...
Jun XIE
doaj   +1 more source

Study of Optimum Blasting Condition to Lower the Blasting Vibration

Journal of MMIJ, 2018
Because blasting is a quite efficient and economical excavation method, it has been widely applied to tunnel excavation especially in hard rock. However, this method is rarely used to the tunnel site close to residential houses due to its environmental impact such as vibration and noise.
Keita IWANO, Junichi NAGAE, Katsunori FUKUI, Kimihiro HASHIBA   +3 more
openaire   +3 more sources

Revisiting Graphite Electrodes for Electric Arc Furnaces: Three‐Dimensional Microstructural Heterogeneity as a Design Parameter for Fracture Resistance

Carbon Innovation, EarlyView.
Graphite electrodes are revisited as strategically important carbon materials for electric arc furnace steelmaking. By correlating three‐dimensional microstructural complexity with fracture energy, this work reveals a fundamental trade‐off between graphitization and energy dissipation, providing a data‐driven framework for the rational redesign of ...
J. L. Fajardo‐Diaz, K. Kondo, A. D. Martinez‐Iniesta, M. Horita, K. Takeuchi, K. Oshida, M. Endo   +6 more
wiley   +1 more source

Importance of Blast-Design in Reduction of Blast-Induced Vibrations [PDF]

International Journal of Science, Technology and Society, 2014
The dissipated energy generated during blasting creates environmental problems in the form of ground vibration, air overpressure and flyrock. With increasing mining and construction activities in areas close to human settlements, ground vibration has become a critical environmental issue as it can cause human annoyance and structural damage.
openaire   +1 more source