White-tailed deer (Odocoileus virginianus) may cause more damage than any other species of wildlife. These damages include crop loss, automobile and aviation collisions, disease transmission, environmental degradation, and destruction of ornamental plantings. One practical method of controlling deer damage is the use of exclusionary fences. The relatively high cost of labor and materials requir...

Twenty years ago, it was about saving the rhino, but now it may end up being about mitigating the effects of climate change. Although the reasons for continuing to build an electric fence around the Aberdare mountains in Kenya have changed, conservationists and local farmers agree that the fence is a good thing to have. Back in 1988, the charity Rhino Ark started raising funds for a stretch of ...

This paper considers the problem of multi-robot patrolling along an open polyline, for example a fence, in the presence of an adversary trying to penetrate through the fence. In this case, the robots’ task is to maximize the probability of detecting penetrations. Previous work concerning multi-robot patrol in adversarial environments considered closed polygons. That situation is simpler to eval...

Synchronization operations, such as fence and locking, are used in many parallel operations accessing shared memory. However, a process which is blocked waiting for a fence operation to complete, or for a lock to be acquired, cannot perform useful computation. It is therefore critical that these operations be implemented as efficiently as possible to reduce the time a process waits idle. These ...

[1] Land clearing for agricultural purposes in southwest Australia has created a landscape where a 750 km rabbit‐proof fence separates 13 million hectares of croplands from the remnant native vegetation to the east. The Bunny Fence Experiment (BuFex) was conducted in the vicinity of the intended vermin‐proof boundary in December 2005 and August 2007. The experiment examined the role of land cov...

Knotted wire fences are fabricated on specialised machines. The input material is typically galvanised steel wire. However, the quality of the input wire used by the Fence Producer is beyond control of the Machine Manufacturer. The problem is that wire strand breakages have been reported during fabrication and subsequent field erection. This is an issue for the Fence Producer because of the los...

Detection and removal of fences from digital images becomes essential when an important part of the scene turns to be occluded by such unwanted structures. Image de-fencing is challenging because manually marking fence boundaries is tedious and time consuming. The fence is a distributed object and may cover a significant portion of the scene. In this paper a novel image de-fencing algorithm tha...

Conventional approaches to image de-fencing suffer from non-robust fence detection and are limited to processing images of static scenes. In this position paper, we propose an automatic de-fencing algorithm for images of dynamic scenes. We divide the problem of image de-fencing into the tasks of automated fence detection, motion estimation and fusion of data from multiple frames of a captured v...

As a lunar lander approaches the surface, the impinging exhaust gases entrain regolith into a high velocity spray. This two-phase spray can be damaging to nearby structures, such as a lunar outpost. One way of mitigating this damage is to use a berm or fence to shield nearby structures from the dust spray. In this work, we use a coupled continuum – DSMC (direct simulation Monte Carlo) solver to...

Pre 1800s: Foragers and agropastoralists occupy the Central Kalahari region. 1849: Livingstone, Oswell, and Murray cross the eastern Kalahari Desert to the Botletle River. 1877: The Dorstland Trekkers cross the Kalahari (pass NE comer of the Reserve). 1898: Founding of the Ghanzi Fanns by Cecil Rhodes and company. 1905: Some Bakwena cattle herded out of the Central Reserve to the Botletle River...