Results 161 to 170 of about 69,126 (307)
Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel. [PDF]
Materials (Basel), 2021 Jambor M +3 more
europepmc +1 more source
British Journal of Clinical Pharmacology, EarlyView.Aim The benzoxaborole derivative DNDI‐6148 is an antiparasitic agent with activity against multiple Leishmania protozoan species, including L. infantum and L. donovani, which cause visceral leishmaniasis. We investigated the safety, tolerability and pharmacokinetics of single oral doses of DNDI‐6148 in a randomized, parallel‐group, placebo‐controlled ...
Jean‐Yves Gillon +12 more
wiley +1 more source
‘Where are the adults?’: Troubling child‐activism and children's political participation
British Educational Research Journal, EarlyView.Abstract Children's political participation is a well‐established theme in childhood studies. In this article we offer an original account of child activism that takes into account the entangled and emergent aspect of children as activists. We begin with a historical and a conceptual review, noting the importance of mid‐20th century developments such ...
Sharon Hunter, Claire Cassidy
wiley +1 more source
Carbon Energy, EarlyView.Precise regulation of radial sodium‐ion distribution, phase structure, and transition metal valence in P2/O3 composite cathodes without grain boundary significantly enhances resistance to an environment with high humidity and high concentration of CO2.
Minghuang Li +17 more
wiley +1 more source
Investigation of Helicopter Longeron Cracks [PDF]
Four cracked longerons, containing a total of eight cracks, were provided for study. Cracked regions were cut from the longerons. Load was applied to open the cracks, enabling crack surface examination.
Baughman, James +2 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying +7 more
wiley +1 more source
An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
Deep Underground Science and Engineering, EarlyView.The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang +6 more
wiley +1 more source
Fatigue Crack Propagation Properties of Ordinary Plain Concrete Under Three-Point Loading. [PDF]
Materials (Basel)Chen H, Song J, Li D.
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei +4 more
wiley +1 more source