Results 21 to 30 of about 949,505 (240)

Biomechanical evaluation of two modified intramedullary fixation system for treating unstable femoral neck fractures: A finite element analysis

Frontiers in Bioengineering and Biotechnology, 2023
Purpose: The existing implants for fixation of femoral neck fractures have poor biomechanical stability, so the failure rate is high. We designed two modified intramedullary implants for treating unstable femoral neck fractures (UFNFs).
Qiang Huang, CongMing Zhang, HuanAn Bai, Qian Wang, Zhong Li, Yao Lu, Teng Ma   +6 more
doaj   +1 more source

Metals Analyses of Portland and Blended Cement Via Microwave Digester and Inductively Coupled Plasma Technologies [PDF]

Journal of Chemical and Petroleum Engineering
The method involves a sample preparation technique through microwave digestion to extract eight metals (Si, Al, Mg, Ca, Fe, Na, K, and Ti) in Portland (SRM 1888b) and Blended (SRM 1881a) cement traceable to NIST, followed by spectrometric detection and ...
NENITO TOLEDO
doaj   +1 more source

Interaction curves for vibration and buckling of thin-walled composite box beams under axial loads and end moments [PDF]

, 2010
Interaction curves for vibration and buckling of thin-walled composite box beams with arbitrary lay-ups under constant axial loads and equal end moments are presented.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Current Perspectives on Neurostimulation for the Management of Chronic Low Back Pain: A Narrative Review

Journal of Pain Research, 2021
David A Provenzano,1,2 Jared A Heller,3 Michael C Hanes4 1Pain Diagnostics and Interventional Care, Sewickley, PA, USA; 2Western PA Surgery Center, Wexford, PA, USA; 3Washington & Jefferson College, Washington, PA, USA; 4Jax Spine & Pain Centers,
Provenzano DA, Heller JA, Hanes MC
doaj  

Ultrasound-guided axial facet joint interventions for chronic spinal pain: A narrative review

Canadian Journal of Pain, 2023
Background Axial facet joint interventions (e.g., medial branch block and radiofrequency ablation, facet joint intra-articular injection) are commonly performed for managing chronic spinal pain.
Michael J. Wong, Manikandan Rajarathinam
doaj   +1 more source

Subaxial cervical pedicle morphometric assessment in normal South Indian subjects using computed tomography scan images

Journal of Spinal Surgery, 2017
Aim: To conduct a detailed computed tomography (CT) assessment of dimensions of the subaxial cervical spine pedicle in volunteers without any cervical spine pathology.
Penkulinti Murahari, Himanshu Bhargav, Amuru LMV Kumar, K Vinayak Santosh, L Jayaprakash Reddy, Rajkiran R Banala, Goli PV Subbaiah   +6 more
doaj   +1 more source

Observation and Modeling of Hydrothermal Response to the 2015 Eruption at Axial Seamount, Northeast Pacific

Geochemistry, Geophysics, Geosystems, 2018
The 2015 eruption at Axial Seamount, an active volcano at a depth of 1500 m in the Northeast Pacific, marked the first time a seafloor eruption was detected and monitored by an in situ cabled observatory—the Cabled Array, which is part of the Ocean ...
Guangyu Xu, William W. Chadwick Jr., William S. D. Wilcock, Karen G. Bemis, John Delaney   +4 more
doaj   +1 more source

Acylated mono-, bis- and tris- Cinchona-Based Amines Containing Ferrocene or Organic Residues: Synthesis, Structure and in Vitro Antitumor Activity on Selected Human Cancer Cell Lines

Molecules, 2012
A series of novel functionalized mono-, bis- and tris-(S)-{[(2S,4R,8R)-8-ethyl-quinuclidin-2-yl](6-methoxyquinolin-4-yl)}methanamines including ferrocene-containing derivatives was obtained by the reaction of the precursor amine with a variety of ...
Emese Gál, Antal Csámpai, Erika Orbán, Pál Sohár, László Drahos, Benedek Imre Károlyi, Szilvia Bősze   +6 more
doaj   +1 more source

Development of transverse excitation MFL inline detector

You-qi chuyun, 2020
A transverse excitation magnetic flux leakage (MFL) inline detector, with a diameter of 711 mm, was developed in response to the difficulty in detecting axial metal loss defects of long-distance oil and gas pipelines.
Chao YU, Yongjiang ZHANG, Yanchun LI, Yanxu ZANG, Jinxing WANG, Chuanbo LIN, Huan REN   +6 more
doaj   +1 more source

Origen aórtico anómalo de las arterias coronarias

Archivos de Cardiología de México, 2023
Introducción: El origen aórtico anómalo de las arterias coronarias tiene una prevalencia estimada del 0.02-5.7% y están potencialmente involucradas con complicaciones en su evolución natural o aquellos que requieran procedimientos intervencionistas ...
Juan M. Bonelli, Ana M. Schroh, Alejandro Peirone, Gabriel Romero, María L. Schroh   +4 more
doaj   +1 more source