Results 101 to 110 of about 5,095,342 (309)

Analysis of Implementation Effectiveness of Two Working Fluids Characterized by Different Viscoelastic Characteristics at Hydrodynamic Impact on the Borehole Bottom Zone

Наука и техника, 2019
Combination of hydrodynamic impact on the formation with acid treatment may be seen as a promising direction in the field of well development and repair in complex geological conditions.
K. S. Kupavykh, A. S. Kupavykh, V. A. Morenov   +2 more
doaj   +1 more source

Physiotherapy rehabilitation for osteoporotic vertebral fracture (PROVE) : study protocol for a randomised controlled trial [PDF]

, 2014
Background: Osteoporosis and vertebral fracture can have a considerable impact on an individual’s quality of life. There is increasing evidence that physiotherapy including manual techniques and exercise interventions may have an important treatment ...
Lamb, S. E. (Sallie E.), Sallie Lamb, Stallard, Nigel, Nigel Stallard, Newman, Meredith, Lowe, Catherine Minns, Javaid, Muhammad K., Meredith Newman, Barker, Karen, MSc, Gandhi, Varsha, Karen L Barker, Catherine Minns Lowe, Varsha Gandhi, Campbell, Helen, Helen Campbell, Muhammad K Javaid   +15 more
core   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

Predictive model for solute transport processes in fractured rocksbased on geometric parameters of fracture network

Yantu gongcheng xuebao
The mechanisms and predictive modeling of solute transport in fractured rocks represent a frontier and hotspot in the fields of hydraulic rock mechanics and hydrogeology.
NAI Yu'ao 1, 2, ZHOU Jiaqing 1, 2, LI Changdong 2, GUO Liguo 3, GAN Fushuo 2, ZHU Yinbin 2
doaj   +1 more source

Study on the effects of fracture on permeability with pore-fracture network model

, 2018
Reservoir quality and productivity of fractured gas reservoirs depend heavily on the degree of fracture development. The fracture evaluation of such reservoir media is the key to quantify reservoir characterization for the purposes such as well drilling ...
Shen WJ(沈伟军), Hu Y, Jiao CY, Xu X, Lu XB(鲁晓兵), Hu XH, Hu, Yong, Chunyan Jiao, Jiao, Chunyan, Xuan Xu, Shen, Weijun, Lu, Xiaobing, Weijun Shen, Yong Hu, Xiaobing Lu, Xinhai Hu, Xu, Xuan, Hu, Xinhai   +17 more
core   +2 more sources

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

Advanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan, Hocheon Yoo, Benoît H. Lessard, Ioannis Kymissis, Chang‐Hyun Kim   +4 more
wiley   +1 more source

Symptoms of anxiety or depression and risk of fracture in older people: the Hertfordshire Cohort Study [PDF]

, 2012
SummaryThe aim of this study was to examine the prospective association between symptoms of anxiety and depression and risk of fracture in older people.
Sayer, A.A., Sayer, AA, Edwards, M., Dennison, Elaine M, Edwards, Mark, Gale, CR, Cooper, C., Edwards, M, Gale, Catharine R, Dennison, E.M., Dennison, EM, Cooper, Cyrus, Gale, C.R., Sayer, Avan Aihie   +13 more
core   +1 more source

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

Advanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni, Nastaran Bahrami Novin, Luigi Benvenuto, Enrico Lertora, Flavia Libonati   +4 more
wiley   +1 more source

Fracture Network Influence on Rock Damage and Gas Transport following an Underground Explosion

Geotechnics
Simulations of rock damage and gas transport following underground explosions that omit preexisting fracture networks in the subsurface cannot fully characterize the influence of geo-structural variability on gas transport.
Aidan Stansberry, Matthew R. Sweeney, Jeffrey D. Hyman, Justin Strait, Zhou Lei, Hari S. Viswanathan, Philip H. Stauffer   +6 more
doaj   +1 more source

A 3-Dimensional discrete fracture network generator to examine fracture-matrix interaction using TOUGH2 [PDF]

, 2003
Water fluxes in unsaturated, fractured rock involve the physical processes occurring at fracture-matrix interfaces within fracture networks. Modeling these water fluxes using a discrete fracture network model is a complicated effort.
Ito, Kazumasa, Yongkoo, Seol
core