[b]Abstract Objective.[/b] The aim of the study is to present four cases of lawn mowers injuries as a cause of serious visual acuity impairment. [b]Materials and Method[/b]. A retrospective study of four patients admitted in 2013-2015 to the Department of Vitreoretinal Surgery in Lublin with severe open or closed globe injury, one with an intraocular foreign body (IOFB). The presence of eye pro...

This study is about the manufacturing of a personified automatic robotic lawn mower with image recognition. The system structure that platform above crawler tracks combined mower, steering motor, slide rail, and webcam to achieve purpose personification. Crawler strong grip good ability adapt terrain are selected as moving vehicle simulate human feet. In addition, mechanism designed left right ...

7 EDITORIAL Please cite this paper as: White, J. Going native (or not): Five questions to ask mobile application developers. Introduction I recently needed a new shovel. At the hardware store I was, as always, taken aback at the range of options available to me, and the range of prices I could pay. Hardware store regulars will know that this is true of everything from lawnmowers to screwdrivers...

Robotic ground vehicles are systems that use gravity and contact forces with the ground to perform motion. In this paper we will focus on n-wheeled vehicles able to perform motion with all the wheels maintaining contact at the same time. The main goal of this work is to establish the implication of the topological architecture of the vehicle mechanism on criteria such as climbing skills, robust...

Various single-rider open vehicles, such as lawnmowers, are susceptible to overturning on slopes that are too steep for them. Warnings have included separation from the vehicles and avoiding slopes that are too steep. A recommended maximum slope is commonly 15 degrees. However, many individuals cannot evaluate slopes just by sight. Some mower manufacturers have warned about too steep slopes and...

This paper describes our recent work on robotic manipulation using a robot with just one motor. The drift field provided by gravity can serve as an uncontrolled motor to allow a single-motor robot to throw objects to itself, a simple type of robotic juggling. Similarly, the drift field provided by a conveyor belt can serve as an uncontrolled motor to allow a single-motor robot to feed parts in ...

We present a method for navigating an autonomous agent based on the textures present in an environment. Specifically, the autonomous agent in question is that of a robotic lawn mower. If we can successfully differentiate the textures of the cut and uncut lawn surfaces, then we can track the boundary between them and mow in a pattern as a human would. The system uses the wavelet transform as the...