Results 91 to 100 of about 13,135 (254)

Attenuation of rock blasting induced ground vibration in rock-soil interface

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Blasting has been widely used in mining and construction industries for rock breaking. This paper presents the results of a series of field tests conducted to investigate the ground wave propagation through mixed geological media. The tests were conducted at a site in the northwestern part of Singapore composed of residual soil and granitic rock.
Jayasinghe, Bhagya, Zhao, Zhiye, Goh, Anthony Teck Chee, Zhou, Hongyuan, Gui, Yilin   +4 more
openaire   +4 more sources

Design and Development of the Space Shuttle Tail Service Masts [PDF]

The successful launch of a space shuttle vehicle depends on the proper operation of two tail service masts (TSMs). Reliable TSM operation is assured through a comprehensive design, development, and testing program. The results of the concept verification
Dandage, S. R., Godfrey, S. E., Herman, N. A., Uda, R. T.   +3 more
core   +1 more source

Experimental Investigation of Blast-Pressure Attenuation by Cellular Concrete [PDF]

, 2015
Results from an experimental investigation of the dynamic response of cellular concrete subjected to blast-pressure loading are presented. The cellular concrete has large entrained porosity in the form of uniformly distributed air cells in a matrix of ...
Andreopoulos, Y, K V L, Subramaniam, Nian, W   +2 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source

Pressure-impulse diagram method:a fundamental review [PDF]

, 2019
Accidental and deliberate explosions stemming from catastrophic events in the petroleum industry, incidents during complex manufacturing processes, mishandling or failure of domestic gas appliances or installations, terrorist attacks and military ...
Chernin, Leon, Cotsovos, D, Shufrin, Igor, Vilnay, Margalite   +3 more
core   +5 more sources

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Prediction of Blast-Induced Ground Vibration with ANN and Prediction Performance

International Journal of Innovative Engineering Applications, 2021
In this study, ground vibrations caused by blasting applications in a quarry were recorded and these values were evaluated and estimated by using an artificial neural network (ANN) model. Of the 28 vibration data measured, 20 were used for ANN training, 4 for validation and the remaining 4 for testing.
openaire   +3 more sources

Dominant Lithium‐Ion Conduction and Desolvation Regulation Enabled by Lithiated Monodisperse Nanospheres Composite Separator for High‐Nickel Lithium Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
To match high‐nickel lithium batteries, a composite separator is designed using a sulfonation‐lithiation nanosphere coating modification strategy. The composite separator can enhance the selectivity of lithium‐ion transport, accelerate Li+‐desolvation, and capture Ni, Co, and Mn ions.
Jin Gong, Guigang Wang, Xiaoyan Feng, Tingfeng Xiao, Lishun Dai, Qingfu Zhang, Shuyu Gao, Jingchao Chai, Yun Zheng, Li Yang, Ming Xie, Wei Zhang, Zhihong Liu   +12 more
wiley   +1 more source

Accurate prediction of blast-induced ground vibration intensity using optimized machine learning models

Defence Technology
Blast-induced ground vibration, quantified by peak particle velocity (PPV), is a crucial factor in mitigating environmental and structural risks in mining and geotechnical engineering.
Lihua Chen, Yewuhalashet Fissha, Mahdi Hasanipanah, Refka Ghodhbani, Hesam Dehghani, Jitendra Khatti   +5 more
doaj   +1 more source