We fabricate slightly deformed fused-silica microspheres in which whispering gallery modes possess remarkably directional escape emission from the microsphere boundary. With efficient free-space excitation and collection, the lateral spatial distribution of whispering gallery modes with different azimuthal mode numbers, m, is directly observed through modal coupling and directional emission. Ex...

The mountain pine beetle (MPB), the most serious pest of lodgepole pine in mountainous western Canada, spread northeastward into lodgepole · jack pine hybrids in the boreal forest of Alberta in 2006. The MPB vectors three species of blue-stain fungi, which contribute to the success of the beetles. These fungi were isolated from MPB larvae and galleries in several lodgepole · jack pine stands in...

The Science Museum’s new Information Age gallery looks at the last 200 years of information and communication technologies, inviting visitors to take a long view on our ability to generate, share and store information. We focused the gallery on six technological ‘networks’ and chose transforming events – or moments in history – that show how people have created and shaped each new wave of socia...

New York City is often held up as a successful example of arts-led economic development. Case studies have documented the influx of avant-garde artists and galleries into several neighborhoods, including Greenwich Village, SoHo, and Chelsea, followed by yuppies and boutiques. Some researchers have used these examples to argue that artists and galleries can spur gentrification. An alternative hy...

Person re-identification is becoming a hot research for developing both machine learning algorithms and video surveillance applications. The task of person re-identification is to determine which person in a gallery has the same identity to a probe image. This task basically assumes that the subject of the probe image belongs to the gallery, that is, the gallery contains this person. However, i...

The terrain guarding problem and art gallery problem are two areas in computational geometry. Different versions of terrain guarding involve guarding a discrete set of points or a continuous set of points on a terrain. The art gallery problem has versions including guarding an entire polygon by a set of discrete points at the vertices or any point inside the polygon itself. This paper will give...

We propose heuristics for visibility coverage of a polygon with the fewest point guards. This optimal coverage problem, often called the “art gallery problem”, is known to be NP-hard, so most recent research has focused on heuristics and approximation methods. We evaluate our heuristics through experimentation, comparing the upper bounds on the optimal guard number given by our methods with com...

The Micro Gallery, recently installed at the National Gallery in London, Is a public-access information system. It provides a comprehensive and richly interconnected illustrated encyclopedia of the cdlectlon. The paper summarizes the choice of technology, the system architecture and design issues. The purpose of the system Is to provide a resource to enhance visitors' appreciation of the painti...

In the Art Gallery problem, given is a polygonal gallery and the goal is to guard the gallery’s interior or walls with a number of guards that must be placed strategically in the interior, on walls or on corners of the gallery. Here we consider a more realistic version: exhibits now have size and may have different costs. Moreover the meaning of guarding is relaxed: we use a new concept, that o...