Investigating the mechanical properties and crashworthiness of hybrid PLA/GFRP composites fabricated using FDM-filament winding.

The failure and crashworthiness performance of hybrid Polylactide (PLA)/Glass Fiber Reinforced Polymer (GFRP) composite tubes subjected to axial and radial quasistatic compression loads were investigated in the present study. The composite tubes are fabricated using hand lay-up and Fused Deposition Modeling (FDM)-filament winding processes. The crashworthiness performance was studied using parameters such as the peak load, energy absorption, crush load, crushing load efficiency, and specific energy absorption.

Research hotspots and future trends of hot corrosion research: a bibliometric analysis.

Hot corrosion has attracted researchers due to its complexity of mechanisms leading to a critical challenge for energy efficiency advancement. Literature on hot corrosion spans a wide range of discussions in materials, including metals or non-metals and operating environmental conditions. Hence it was difficult to overshadow the current status and future trends of hot corrosion research.

The Influence of Special Military Training on Left Ventricular Adaptation to Exercise in Elite Air Force Soldiers.

Purpose: The purpose of this study was to observe the influence of level physical training intensity on left ventricular (LV) adaptation in elite air force soldiers compared to regular basic military training.

Methods: The LV adaptation of special military physical training for elite air force soldiers was compared with basic military training for regular troops. A group of the nonmilitary subject was also evaluated as a control group.

Experimental Investigation of Effect of L-Profile Hybrid Aluminium/GFRP to the Axial and Lateral Characteristic.

The current study investigates the effect of a hybrid L-profile aluminium/glass-fiber-reinforced polymer stacking sequence under axial and lateral compression loads. Four stacking sequences are studied: aluminium (A)-glass-fiber (GF)-AGF, GFA, GFAGF, and AGFA. In the axial compression test, the aluminium/GFRP hybrid tends to crush in a more progressive and stable failure than the net aluminium and net GFRP specimens, with a relatively more stable load-carrying capacity throughout the experimental tests.

Biometric and genetic differences in kelabau ( spp.) as revealed using cytochrome c oxidase subunit 1.

Kelabau ( spp.) is a freshwater fish commonly found in the rivers of Riau, Indonesia. Researchers believe that these are ; however, accurate taxonomic determination of these fish in Riau waters has not been made.