In the current work, light weight epoxy bio‐composites are created for low‐cost technological applications using luffa aegyptiaca fiber and biochar particles derived from coco husk (CHB). This study aims to evaluate the effects of CHB particles added at different concentrations (3 vol% and 5 vol%) on the dynamic mechanical, ballistic and tribology behavior of epoxy composites constructed from luffa aegyptiaca fiber with different fiber loading (20%, 30% and 40 vol%). The composites are prepared using hand layup process provided with post curing operation. The combination of 3 vol% CHB particles and 40 vol% luffa aegyptiaca fiber having the improved viscoelastic properties by means of high storage modulus (5.05 GPa) and low loss factor (0.31). Moreover, this composite shows better ballistic properties in terms of low velocity impact energy (17.1 J). The optical image of impact damage behavior shows minimum damage of impactor on the composite and penetration effect found to be lower. This luffa aegyptiaca fiber reinforced epoxy composite also shows the lowest value of coefficient of friction (COF) with 0.48 and the lowest specific wear rate of 0.011 mm3/Nm. These epoxy composites made from luffa aegyptiaca fiber and CHB particles may be useful in a variety of engineering applications that can use materials for manufacture sporting goods, home furnishings, food packaging, and transportation.
With ARM7 as the core, this paper discusses a kind of design of vehicle location system. The new mobile vehicle Positioning architecture and working theory of this system is integrated by a lot of hardware modules such as ARM microprocessor LPC2129 as a control unit to combinative with GPS LR9548 and GSM TC35 modules By the hardware/software co-design, the new mobile vehicle Positioning system can be designed. It explores location solution, map matching and data compress associated with the positioning, shows a pro-gram flowchart and predicts the trend of the vehicle location system in the future and meets the traffic auditing department’s needs about Mobile Vehicle Location. The set up consists of ARM7TDMI core, which is a 32- bit microprocessor, GSM & GPS serves as an important part as it is responsible for Positioning of the Vehicle. ARM7TDMI is an advanced version of microprocessors and forms the heart of the system. GSM operates through SMSs and is the link between ARM processor and centralized unit. This project is used to find the exact Location of the vehicle. GSM is used to inform the user about the exact Location of the vehicle. The information is given on user request in form of SMS. GSM modem can be controlled by standard set of AT (Attention) commands. These commands can be used to control majority of the functions of GSM modem.
With ARM7 as the core, this paper discusses a kind of design of vehicle location system. The new mobile vehicle Positioning architecture and working theory of this system is integrated by a lot of hardware modules such as ARM microprocessor LPC2129 as a control unit to combinative with GPS LR9548 and GSM TC35 modules By the hardware/software co-design, the new mobile vehicle Positioning system can be designed. It explores location solution, map matching and data compress associated with the positioning, shows a pro-gram flowchart and predicts the trend of the vehicle location system in the future and meets the traffic auditing department’s needs about Mobile Vehicle Location. The set up consists of ARM7TDMI core, which is a 32 - bit microprocessor, GSM & GPS serves as an important part as it is responsible for Positioning of the Vehicle. ARM7TDMI is an advanced version of microprocessors and forms the heart of the system. GSM operates through SMSs and is the link between ARM processor and centralized unit. This project is used to find the exact Location of the vehicle. GSM is used to inform the user about the exact Location of the vehicle. The information is given on user request in form of SMS. GSM modem can be controlled by standard set of AT (Attention) commands. These commands can be used to control majority of the functions of GSM modem.
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