Robots are the best replacement of man power in every field of life because they can work with a better efficiency under hard environments. Recently, plenty of work has been carried out on mimicking the human hand motion. However, most of the designers emphasized on designing new actuating system with less degree of freedom or reduce number of actuators along with enhanced performance. Bird claw motion is a natural example with simpler design and has many advantages over human hand such as less number of joints, easy structure and better grip. In this manuscript we propose a robot model which is based on a pigeon’s claw and a hardware structure is implemented to verify that the proposed model contain almost half joints than a human hand and hence offers much lower cost along with easier management. Furthermore, smaller size of the palm also facilitates in handling small items. We have presented software and hardware model of a pigeon’s claw in support of the argument.
Smoking is an addictive behavior and can result major health complications. Nowadays, many young adults tend to pick up this unhealthy habits which could potent
The Smart Fall Detection Monitoring System is the name of the programme that monitors everyday activities and falls. It has an accelerometer sensor (ADXL345) an
30 July 2024 in Journal of Advanced Research in Applied Mechanics
Nowadays, waste acrylonitrile butadiene rubber glove (NBRr) has been studied for use in building materials. The primary limitation of using rubber in construction was its low water absorption capacity. The goal of this research is to investigate the effect of Linear Low-Density Polyethylene (LLDPE) on water absorption and the temperature differential (20 and 30 oC) of NBRr blender composite in distilled water (DW) and saline water (SW). The rubber glove has been blended with heated two-rolled mills at 120 °C. The substance had been compressed using a hot press. Five samples had already been created. The sample was formed like a dumbbell. The five samples were immersed in DS and SW for 30 days at temperatures of 25°C and 35°C, respectively. The result shown the tensile strength, elongation at break Eb and Young’s modulus of LLDPE/NBRr blend decrease. The tensile properties of saline water lower compare to distilled water due to corrosion and degradation. Saline water contains dissolved salts, which can contribute to corrosion and degradation of the materials. The presence of salts can accelerate chemical reactions, leading to the degradation of the polymer matrix and the rubber phase. This degradation can weaken the material and reduce its tensile strength. Moreover, as the temperature increases, the thermal energy also increases, causing the polymer chains to gain more kinetic energy. This increased energy disrupts the intermolecular forces and reduces the overall molecular interactions within the material. Weaker intermolecular interactions lead to a decrease in tensile strength. As conclusion, hydrothermal effect tensile properties when temperature increase tensile properties decrease. distilled water has better diffusion than saltwater. LLDPE/NBRr blend was discovered that both distilled and salt-water absorption resulted in a decrease in tensile properties.