Results 41 to 50 of about 332,876 (331)

Energy Generation and Attenuation of Blast-Induced Seismic Waves under In Situ Stress Conditions

Applied Sciences, 2022
During blasting in deep mining and excavation, the rock masses usually suffer from high in situ stress. The initial seismic energy generated in deep rock blasting and its attenuation with distance is first theoretically analyzed in this study.
Jianhua Yang, Jinshan Sun, Yongsheng Jia, Yingkang Yao   +3 more
doaj   +1 more source

Effect of blast induced rock fragmentation and muckpile angle on excavator performance in surface mines [PDF]

, 2019
Purpose. A fit excavator in a surface mine gives a trouble free production. To maintain the condition and safety of an excavator, proper sizes of rock fragmentation and muckpile parameters are crucial besides its maintenance.
Choudhary, B.S.
core   +1 more source

Ultra-high pulse pressure induced particle surface thermal field assisted preparation of W–Al composite

Journal of Materials Research and Technology
Particle surface thermal field (PSTF) is an inhomogeneous thermal field that concentrates the heat effect on the surface of particles, and it can be utilized to fabricate composite materials with large differences in physical properties.
Jianian Hu, Haotian Zhang, Xiang Chen, Jian Zhang   +3 more
doaj   +1 more source

Prolonged Corrected QT Interval as an Early Electrocardiographic Marker of Cyclophosphamide‐Induced Cardiotoxicity in Pediatric Hematology and Oncology Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cyclophosphamide (CY) is associated with potentially fatal cardiotoxicity, yet no electrocardiographic indices have been established for early detection of CY‐induced cardiomyopathy. This study aimed to determine whether corrected QT interval (QTc) prolongation can predict early onset of CY‐related cardiac dysfunction in pediatric ...
Junpei Kawamura, Kentaro Ueno, Takuro Nishikawa, Yoshihiro Takahashi, Koji Nakae, Yasuhiro Okamoto   +5 more
wiley   +1 more source

Final report of grit blasting and metal spraying trials carried out at H. M. Dockyard, Devonport [PDF]

, 1966
Mild steel surfaces that are to be protected by aluminium or zinc spray coatings are generally prepared by blasting with chilled iron angular grit. Previous work1had shown that a relationship exists between the grit blasting conditions (at least in ...
Apps, R. L.
core  

Pathogenic Germline PALB2 and RAD50 Variants in Patients With Relapsed Ewing Sarcoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Approximately 10% of patients with Ewing sarcoma (EwS) have pathogenic germline variants. Here, we report two cases: first, a novel germline pathogenic variant in partner and localizer of BRCA2 (PALB2) in a patient with a late EwS relapse. Its impact on homologous recombination is demonstrated, and breast cancer risk is discussed.
Molly Mack, A. Carolina Tufino, Mohd Azrin Jamalruddin, Sreya Dey, Yinghong Pan, Elina Mukherjee, Jessica D. Daley, Julia Meade, Mahmoud Aarabi, Lisa Maurer, James Cooper, Kara A. Bernstein, Kelly M. Bailey   +12 more
wiley   +1 more source

Substantiating rational parameters of a method for shrinkage ore stoping while developing thin- vein steeply inclined deposits [PDF]

, 2018
Objective of the paper is to substantiate rational ore-stoping technique while using small wells in the context of thin-vein steeply inclined deposit mining.
Denyshchenko, Oleksandr, Koroviaka, Yevhenii, Rastsvietaiev, Valerii, Shyrin, Leonid   +3 more
core   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source

Advances in Novel Structures and Materials for Shaped Charge Liners

Shock and Vibration
As a core component of shaped charges, the liner’s structural and material properties are crucial for overcoming traditional technological limitations and enhancing the cumulative effect in applications involving civil explosives and resource extraction.
Yihao Shen, Zhichao Zhao, Zhangbo Ming, Guangyu Yin, Yurong Liu, Jingwei Li, Xuwen Liu   +6 more
doaj   +1 more source

Experimental Study on Vibration Reduction Technology of Hole-by-Hole Presplitting Blasting

, 2021
In order to effectively reduce the disturbance of the precrack blasting vibration on slope rock mass, except paying attention to the damping effect of the precrack, it is also necessary to optimize the blasting parameters and initiation mode of the ...
Jun Ma, Xianglong Li, Jianguo Wang, Tao Zihao, Ting Zuo, Qiang Li, Xiaohua Zhang   +6 more
semanticscholar   +1 more source