Batable ground

Ground-to-Ground Optical Communications Demonstration

A bidirectional horizontal-path optical link was demonstrated between Strawberry Peak (SP), Lake Arrowhead, California, and the JPL Table Mountain Facility (TMF), Wrightwood, California, during June and November of 1998. The 0.6-m telescope at TMF was used to broadcast a 4-beam 780-nm beacon to SP. The JPL-patented Optical Communications Demonstrator (OCD) at SP received the beacon, performed f...

Relationship Between Ground Settlement Due to Tunnelling and Ground Physico-mechanical Peroperties (RESEARCH NOTES)

3D Modelling of Under Ground Burried Objects Based on Ground Penetration Radar

There is a growing demand for mapping and 3D modelling of buried objects such as pipelines, agricultural hetitage, landmines and other buried objects. Usually, large scale and high resolution maps from these objects are needed. Manually map generation and modeling of these objects are cost and time consuming and is dependent on lots of resources. Therefore, automating the subsurface mapping and...

Ground Canonicity

They are not capable to ground a canonicity of universal consistency. Abstract We explore how different proof orderings induce different notions of saturation. We relate completion, paramodulation, saturation, redundancy elimination, and rewrite system reduction to proof orderings.

Common ground

The fundamental message of Garrett Hardin's essay 'The Tragedy of the Commons' [1], recently re-visited in these pages by Peter Kareiva [2], is unassailable. If resources are available to all without restraint, they will be over-exploited. That is a simple tenet of population biology, encapsulated in theories of competitive interaction between individuals, and is an explanation for the well-kno...