Thirty-two crossbred boars (Hampshire X Duroc X Yorkshire) were reared under natural lighting (35 lx) or supplemental lighting (1,400 lx) beginning at 4 wk of age. Boars received supplemental lighting from six 40-W fluorescent bulbs between 0530 and 2030 in a nursery unit. From 9 to 32 wk of age, boars received either natural lighting (30 lx) or supplemental lighting (100 lx) in a growing-finis...

Image-based relighting (IBL) has become a popular research topic in both computer graphics and signal processing. IBL is the technique that renders images of a scene under different lighting conditions without prior knowledge of the object geometry and surface properties in the scene. Simply put, IBL collects images of the scene under all possible lighting conditions and process these images to...

Lighting design plays an important role in interactive 3-D training environments; it influences scene perception, scene understanding, attention, visual search, presence, immersion, and emotional involvement. Although there are several research projects that measured the impact of lighting in 3-D environments, little research focused on the development of new lighting design models to enhance t...

Inverse lighting is a technique for recovering the lighting environment of a scene from a single image of an object. Conventionally, inverse lighting assumes that a pixel value is proportional to radiance value, i.e. the response function of a camera is linear. Unfortunately, however, consumer cameras usually have unknown and nonlinear response functions, and therefore conventional inverse ligh...

As LED lighting technology becomes omnipresent, lighting environments become more advanced and allow for adjusting various parameters such as color, brightness, and saturation. This poses challenges for interaction design, particularly when lighting environments are shared between multiple users. This paper presents “Vuur”: a shared physical interface with which users can control lighting in me...

As Se en at ITS A 2 01 3! Why Light Roadways? Among the chief reasons for installing roadway lighting, according to guidance from the Illuminating Engineering Society (IES, 2000), is the potential for lighting to contribute to improved nighttime safety. And the logic that roadway lighting provides drivers with improved visibility and in turn greater distance and longer time to respond to potent...

The purpose of the report is to describe the state of the glass lighting parts market in Central and Eastern Europe, to present actual and retrospective information about the volumes, dynamics, structure and characteristics of production, imports, exports and consumption and to build a forecast for the market in the next five years. In addition, the report presents an elaborate analysis of the ...

This study examined the electromechanical characteristics of piezoelectric materials, which constitute a compact renewable energy source; these materials can convert mechanical (such as pressure or cumulative impact) in form stress to electricity. further explored systems that require moderate and utilize create an energy-generating floor. The electrical were studied, including feasibility inst...

Current office lighting recommendations stress the importance of vertical surface illumination over horizontal desktop illumination for VDT work, where the occupant is primarily in a “heads up” position. We investigated this recommendation by creating two very different lighting conditions in two workstations in a mock-up open-plan office space. One workstation was provided with conventional, d...