Abstract: A security system designed to trap computer viruses is described. The system storage has an external alarm configured to monitor the time every file takes to load by monitoring the drive activity LED of the storage device. The document storage location is hidden and can optionally be accessed via password. If a virus spends an unexpected amount of time attempting to access storage the alarm will trigger. Downloads and other untrusted files are stored in quarantine storage. Documents can only be transferred from the quarantine storage to the system storage via a copy and paste program.
Abstract: A retaining wall or a counterfort retaining wall incorporates a vertical stem wall section, a base section having a toe, a heel, and a number of shallow piles at the bottom of the base section to improve the sliding and overturning safety factor of the wall. To further improve the sliding and overturning safety factor of the wall, an edge of the heel is slanted with a bevel or a batter with an angle to pick up more resisting load.
Abstract: A mechanism for maintaining a surface such as a landing pad in a desired orientation with respect to a supporting surface includes a pair of columns that rotate with respect to each other. The angle at which the columns engage, or the angle at which the columns engage the surface and the supporting surface, are offset with respect to a line perpendicular to the longitudinal axis of the cylinders. By selectively rotating the columns with respect to each other and with respect to the supporting surface, the tilt and orientation of the surface are adjusted.
Abstract: A mechanism for maintaining a surface such as a landing pad in a desired orientation with respect to a supporting surface includes a pair of columns that rotate with respect to each other. The angle at which the columns engage, or the angle at which the columns engage the surface and the supporting surface, are offset with respect to a line perpendicular to the longitudinal axis of the cylinders. By selectively rotating the columns with respect to each other and with respect to the supporting surface, the tilt and orientation of the surface are adjusted.