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Tensile and Low Velocity Impact Behaviour of Flax Fiber Reinforced Composite Modified with Multi-Walled Carbon Nanotubes
Authors
- Siti Zubaidah Mat Daud LANL-JBNU Engineering Institute-Korea, Jeonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea
- Mohd Na'im Abdullah Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia
- Faizal Mustapha Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia
- Mohd Khairul Hafiz Muda Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400 UPM, Malaysia
DOI:
https://doi.org/10.37934/armne.29.1.4659Keywords:
Tensile, impact, flax, bio-composite, multi-walled carbon nanotubeAbstract
The utilization of natural fibers as sustainable materials in composites has gained significant attention in recent years. This study investigates the tensile and low-velocity impact behavior of flax fiber-reinforced composites modified with multi-walled carbon nanotubes (MWCNTs). The primary objective is to evaluate the mechanical performance enhancements achieved by incorporating MWCNTs into woven flax fibers through a vacuum bagging process. Flax fiber with varying MWCNT concentrations (0-3 wt.%) were fabricated and subjected to tensile and drop-weight impact tests. The tensile test results revealed that the incorporation of MWCNTs significantly improved the tensile strength of the composites, with the FF/PE-CNT3 sample exhibiting a 6.23% increase compared to the control sample (FF/PE). Scanning Electron Microscopy (SEM) analysis demonstrated better dispersion and inter
Job Satisfaction Among Healthcare Workers in Saudi Arabia: A Systematic Review
Authors
- Saleh Ali Hussain Alkanfari (1) *, Hussen Ali Hussen Alkanfari (2), Fahad Ali Hussen Alkanfari (3), Yahya Hadi Hamad Al Gorea (4), Salem Hadi Ali Algorei (5), Salem Abdullah Ali Al Hareth (6), Hamad Saleh Mosfer Almordef (7), Mana Saleh Mosfer Almordef (8), Mohammad Saleh Masoud Alkuraim (9), Mahdi Taleb Alsulaiman (10)
Keywords:
Job Satisfaction, Healthcare Workers, Saudi Arabia, Interventions, Clinical Trials, Systematic ReviewAbstract
Introduction:
The healthcare sector in Saudi Arabia has experienced significant growth, yet job satisfaction among healthcare workers remains a pivotal challenge affecting patient care, staff retention, and system efficiency. With the impact of job satisfaction on healthcare outcomes well-documented, this systematic review aimed to assess the effectiveness of various interventions designed to enhance job satisfaction among healthcare workers in Saudi Arabia.
Methods:
A comprehensive literature search was conducted across several databases, including PubMed, Scopus, Web of Science, and CINAHL, focusing on interventional studies and clinical trials published in the last 15 years (2007-2022). Studies were selected based on predefined inclusion criteria, focusing on interventions aimed at improving job satisfaction among healthcare workers in Saudi Arabia. The review analyzed interventions' types, sample sizes, and effectiveness, comparing risk ratios and percentages with confidence intervals.
Results:
Thirteen studies met the inclusion criteria, showcasing a variety of interventions such as leadership training, workload management, staff recognition programs, and physical work environment improvements. Leadership training programs and workload management strategies were notably effective, showing risk ratios of 1.2 to 1.8 and 2.0, respectively. Staff recognition prog .fahad cv 1