Results 81 to 90 of about 7,892,925 (256)

Detection of previous knee injuries using lower limb‐worn inertial measurement units: A cross‐sectional machine‐learning study

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Previous knee injury increases the risk of subsequent injury, even after functional recovery, yet residual gait, running or load alterations often go undetected in routine assessment. Wearable inertial measurement units (IMUs) may enable scalable detection of such alterations outside laboratory settings.
Christina Valle, Matthias Cotic, Maximilian Bartelt, Luca Seeberger, Birgit Waschulzik, Sebastian Siebenlist, Michael T. Hirschmann, Georg Matziolis, Rüdiger von Eisenhart‐Rothe, Daniel Rueckert, Florian Hinterwimmer, Ricardo Smits Serena   +11 more
wiley   +1 more source

Inconsistency in 9 mm bullets : correlation of jacket thickness to post-impact geometry measured with non-destructive X-ray computed tomography [PDF]

, 2014
Fundamental to any ballistic armour standard is the reference projectile to be defeated. Typically, for certification purposes, a consistent and symmetrical bullet geometry is assumed, however variations in bullet jacket dimensions can have far reaching ...
Landheer, D., Thornby, J. A., Williams, M. A., Attridge, A., Williams, T., Barnes-Warden, J., Fenne, P., Norman, D. G.   +7 more
core  

Conjugation‐Length Dependent Interplay Between Charge Transfer and Locally Excited States in Sequence‐Defined Donor–Acceptor Substituted Oligo(Phenylene Ethynylene)s

Macromolecular Rapid Communications, EarlyView.
Iterative synthesis gives access to sequence‐defined oligo(para‐phenylene ethynylene)s, bridging donor and acceptor units through stepwise extension of the conjugated backbone. Accurate length control enables systematic structure‐property relationship investigations across absorption, emission, and excited‐state dynamics.
Qianyu Cai, Till Paha, Marianne Armbruster, André Jung, Eli Zysman‐Colman, Andreas‐Neil Unterreiner, Michael A. R. Meier   +6 more
wiley   +1 more source

Experimental and numerical study on CuO/ZnO-modified aramid fabric for ballistic and UV radiation protection

Polymer Testing
Aramid fabrics are widely used in bulletproof armor because of their excellent mechanical properties. Previous studies have shown that ultraviolet radiation has a negative effect on the mechanical properties of aramid yarn, so improving the mechanical ...
li Liu, Fenglei Huang, Yaojie Xu, Xuke Lan, Guangyan Huang   +4 more
doaj   +1 more source

Data‐Driven Insights into Hyperkinetic Disorders in Neurodevelopmental Syndromes and Epileptic Encephalopathies

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Childhood‐onset hyperkinetic movement disorders occur in a range of genetic conditions. Recently, there has been an increase in recognition of hyperkinetic movement disorders, mainly dystonia, chorea and dyskinesia, with monogenic conditions associated with neurodevelopmental delay (NDD) and also with developmental and epileptic ...
Hugo Morales‐Briceño, Shekeeb S. Mohammad, Rajeshwar Reddy Angiti, Velda Han, Michel Tchan, Russell C. Dale, Victor S.C. Fung   +6 more
wiley   +1 more source

Recent Advances in Exosome‐Based Nanodelivery Systems for Traumatic Brain Injury Treatment

Med Research, EarlyView.
An overview of functional modification, therapeutic effects, molecular composition, and delivery strategies for exosomes. ABSTRACT Traumatic brain injury (TBI) is a highly heterogeneous neurological condition with extremely high rates of mortality and disability.
Jue Zhu, Weiquan Liao, Ziqi Lian, Mengdan Zhang, Chenxing Wang, Xingjia Zhu, Lin Zhang, Jian Chen, Zhichao Lu, Peipei Gong   +9 more
wiley   +1 more source

Electron optics in ballistic graphene [PDF]

, 2015
This thesis is centered on the experimental observation of electron-optics phenomena in graphene. In Chapter 2, graphene is introduced and the ability to form p-n junctions, with particular regard to electron optics experiments, is discussed.
Rickhaus, Peter
core   +1 more source

Dynamic Performance Enhancement of a High‐Agility Hypersonic Mechanical System via a Learning‐Augmented Robust Control Architecture

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The design of control systems for high‐agility mechanical systems operating in extreme environments is a significant challenge in nonlinear dynamics. This paper addresses the complex dynamic control problem of a hypersonic interceptor, modeled as a multi‐input multi‐output (MIMO) mechanical system characterized by strong aerodynamic cross ...
Mohammad Mahdi Soori, Seyed Hossein Sadati   +1 more
wiley   +1 more source

Ballistic behavior of steel sheet subjected to impact and perforation [PDF]

, 2014
The paper is reporting some comparisons between experimental and numerical results in terms of failure mode, failure time and ballistic properties of mild steel sheet.
JANKOWIAK, Tomasz, RUSINEK, Alexis, KPENYIGBA, K. M., PESCI, Raphaël   +3 more
core   +1 more source

Radiation Shielding Performance of B4C‐Reinforced Ultra‐High Molecular Weight Polyethylene Composites Against Low‐Energy X‐Rays: Experimental and Computational Analysis

Polymer Composites, EarlyView.
Radiation shielding behavior of B4C‐reinforced UHMWPE composites. ABSTRACT The present study investigates the radiation shielding performance of ultra‐high molecular weight polyethylene (UHMWPE) composites reinforced with varying boron carbide (B4C) contents against low‐energy X‐rays through combined experimental and computational approaches.
Elif Altındaş, Yalçın Kalkan, Gozde Celebi Efe, Aysun Ayday, Tuba Yener   +4 more
wiley   +1 more source