Pinus pseudostrobus Lindl. is a species endemic to Mexico and widely used in reforestation programmes, as it highly adapted poor, shallow, limestone soils has high commercial importance. However, necessary preserve this genetic material since trouble due rates of deforestation, land use change, forest fires, so have effective strategies obtain good quality seedlings. Due the properties LED (lig...

A face recognition system which uses 3D lighting estimation and optimal compensation for dark-field application is proposed. To develop the proposed system, can realize people identification in a near scene environment, light-emitting diode (LED) overhead light, eight LED wall lights, visible light binocular camera, control circuit are used. First, 68 facial landmarks detected their coordinates...

The advantages offered by the electronic component LED (Light Emitting Diode) have caused a quick and wide application of this device in replacement of incandescent lights. However, in its combined application, the relationship between the design variables and the desired effect or result is very complex and it becomes difficult to model by conventional techniques. This work consists of the dev...

Light plays a vital role on the growth and development of plant. On the base of white light with high color rendering to the benefit of human survival and life, we proposed to improve "color rendering" of LED lighting for accelerating the growth of lettuce. Seven spectral LED lights were adopted to irradiate the lettuces under 150 μmol·m-2·s-1 for a 16 hd-1 photoperiod. The leaf area and number...

Traditional methods of wireless communications are saturating in terms of data rate, frequency spectrum and reliability. Visible light communications has attracted interests in many fields due to widespread commercial availability of LED lights and partly due to limited bandwidth available on the radio communication. It is even more effective for Internet-of-Things(IoT) devices which require ve...

The visible threshold of Oreochromis niloticus responded to high light intensity under short wavelengths, whereas the response low long wavelengths was low, with a minimum visual 574 nm LED lights. Movement distance O. dropped at 31°C and increased abnormally 37°C natural light. Comparing movement red (622 nm) green (518 lights LED, swimming speed were higher than However, decreased rapidly low...