Papers by Keyword: Tools

Abstract: The world is moving towards the renewable energy generation and utilization. The machinery, tools have been now updated to cope up with the environmental need including sustainability and environmental protection. From Gasoline to hybrid and Electric Vehicles have also been introduced. The material of the vehicles has also been made light weighted so that the efficiency of the vehicle can also be enhanced. On the other side if the vehicle body gets dents, scratches or even bumps so they need to be either repair and mostly new parts are installed like fender, bumper or bonnets and hoods. In this regards a dent remover is designed with the facility to remove the dent even without the removal of the paint that is a paintless dent remover. This Paintless dent remover is also equipped with the ability to work on different angles which another dent remover could not with in the facility. The angular dent removing facility provide a wider span of work and better efficiency respectively. Finite Element Analysis and simulation is also necessary for a successful design, so it is also done and from FEAit was found that the dent remover can easily pulled a dent with a maximum force of 100 kg. After successful simulation and designing the Dent remover is also put forward for fabrication so that it may give a large range of dent removing facility in real time.

Abstract: As high polymer materials, textile materials are easily to be carbonized and then disappear, so it is almost impossible to study the origin of it from physical evidence. Based on the objective historical facts, through analysis and inference, the paper believed that textile materials, as soft materials, are better than stone tools in the aspects of obtaining, making, functions and uses. Two hypotheses about the origin of textile materials are proposed. The first is that textile materials originate from tools, and the origin time of it is not later than stone tools. The second is that signs and clothing application of textile materials both evolve from its usage as tools, so the origin sequence of textile materials is tools, signs, and clothing.