AI Article Synopsis
- The study compares two helmet designs (strap-netting and Oregon Aero foam-padding) to see how they protect against ballistic impact in different directions (frontal, lateral, rear, and top).
- Ballistic simulations on a detailed head model measured potential head injuries, showing that top impacts led to high skull stress, while lateral and rear impacts resulted in the most significant risks for intracranial injuries.
- Results suggested that the Oregon Aero foam-padding reduced impact forces and indicated that utilizing smaller padding inserts might offer improved protection for future helmet designs.
Article Abstract
The current study aims to investigate the effectiveness of two different designs of helmet interior cushion, (Helmet 1: strap-netting; Helmet 2: Oregon Aero foam-padding), and the effect of the impact directions on the helmeted head during ballistic impact. Series of ballistic impact simulations (frontal, lateral, rear, and top) of a full-metal-jacketed bullet were performed on a validated finite element head model equipped with the two helmets, to assess the severity of head injuries sustained in ballistic impacts using both head kinematics and biomechanical metrics. Benchmarking with experimental ventricular and intracranial pressures showed that there is good agreement between the simulations and experiments. In terms of extracranial injuries, top impact had the highest skull stress, still without fracturing the skull. In regard to intracranial injuries, both the lateral and rear impacts generally gave the highest principal strains as well as highest shear strains, which exceed the injury thresholds. Off-cushion impacts were found to be at higher risk of intracranial injuries. The study also showed that the Oregon Aero foam pads helped to reduce impact forces. It also suggested that more padding inserts of smaller size may offer better protection. This provides some insights on future's helmet design against ballistic threats.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11517-016-1536-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
T-2 Toxin Nephrotoxicity: Toxic Effects, Mechanisms, Mitigations, and Future Perspectives.
J Agric Food Chem
January 2025
College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
T-2 toxin is a highly toxic fungal toxin that threatens humans and animals' health. As a major detoxifying and metabolic organ, the kidney is also a target of T-2 toxin. This article reviews T-2 toxin nephrotoxicity research progress, covering renal structure and function damage, nephrotoxicity mechanisms, and detoxification methods to future research directions.
View Article and Find Full Text PDFExposomics: a review of methodologies, applications, and future directions in molecular medicine.
EMBO Mol Med
January 2025
Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, 02115, USA.
The exposome is the measure of all the exposures of an individual in a lifetime and how those exposures relate to health. Exposomics is the emerging field of research to measure and study the totality of the exposome. Exposomics can assist with molecular medicine by furthering our understanding of how the exposome influences cellular and molecular processes such as gene expression, epigenetic modifications, metabolic pathways, and immune responses.
View Article and Find Full Text PDFKnowledge, attitude and practice towards multiple myeloma among medical staff in Enshi Region.
Sci Rep
January 2025
Department of Hematology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, 445000, China.
A study in the Enshi Region between Sept-Nov 2023 assessed medical staff's knowledge, attitude, and practice regarding multiple myeloma. The disease significantly impacts physical health, quality of life, and mental well-being. Medical professionals play crucial roles in its prevention and treatment.
View Article and Find Full Text PDFOptimal life-cycle adaptation of coastal infrastructure under climate change.
Nat Commun
January 2025
Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, USA.
Climate change-related risk mitigation is typically addressed using cost-benefit analysis that evaluates mitigation strategies against a wide range of simulated scenarios and identifies a static policy to be implemented, without considering future observations. Due to the substantial uncertainties inherent in climate projections, this identified policy will likely be sub-optimal with respect to the actual climate trajectory that evolves in time. In this work, we thus formulate climate risk management as a dynamic decision-making problem based on Markov Decision Processes (MDPs) and Partially Observable MDPs (POMDPs), taking real-time data into account for evaluating the evolving conditions and related model uncertainties, in order to select the best possible life-cycle actions in time, with global optimality guarantees for the formulated optimization problem.
View Article and Find Full Text PDFComparison of efficacy between micro-osteoperforations and alveolar corticotomies on the rate of orthodontic tooth movement: A systematic review and meta-analysis.
J Craniomaxillofac Surg
January 2025
Universidad Europea de Valencia, Faculty of Health Sciences, Department of Dentistry, Valencia, Spain; Universidad de Valencia, Faculty of Medicine and Dentistry, Department of Orthodontics, Valencia, Spain. Electronic address:
Micro-osteoperforations and corticotomies are two surgical techniques commonly used to increase the rate of tooth movement. The aim of this systematic review was to respond to the question: Which method used for accelerating orthodontic tooth movement, micro-osteoperforations or alveolar corticotomy, produces a higher rate of tooth movement and present less adverse effects? Searches were performed in the electronic databases of PubMed, Scopus, Cochrane CENTRAL, Web of Science, Lilacs and Science Direct, as well as grey literature (Opengrey), up to March 2024. All the included studies were controlled, randomized clinical trials, cohort, case-control, cross-sectional, and multicentre studies of patients treated with orthodontics and corticotomies or micro-osteoperforations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!