Rangsangan Warna Cahaya terhadap Prosentase Karkas Ayam Kampung Super

The purpose of the study was to determine the effect of giving different colors of light on carcass percentage and carcass weight in Kampung Super chickens. The research design used was a completely randomized design (CRD). A total of 80 Kampung Super chickens were used in this study. The research treatments were P1 (white light color), P2 (yellow light color), P3 (green light color), P4 (red light color), P5 (blue light color). The results of the study of the highest carcass presentation were found in the treatment that was given red light with an average value of 62.455%. The highest carcass weight was found in the same treatment, which was given a red light with an average value of 674.75 g/head. The provision of different light colors did not have a significant effect on the carcass percentage and carcass weight of the finisher phase super free-range chicken.

Yellow Light Decision Based On Driving Style: Day Or Night？

Drivers' driving decisions at yellow lights are an important cause of accidents at intersections. According to previous studies driving style is an important basis for deciding whether a driver passes a yellow light or not. This study therefore aims to investigate the effect of different driving styles on driving decisions at yellow lights under different lighting conditions. In this paper, 64 licensed drivers were recruited to study the effect of different driving styles on the decision to drive through yellow lights under both daytime and nighttime lighting conditions using a driving simulator and a VR device. The results showed that maladjusted drivers were faster and more likely to pass the yellow light than adapted drivers (81.25% > 43.75%) in both day and night. Male drivers had higher overall driving style scores than female drivers, and male drivers were faster and more likely to pass a yellow light than female drivers (56.25% > 31.25%). The study also found that inexperienced drivers were faster and more likely to pass a yellow light than experienced drivers (50% > 37.5%). Overall, maladjusted drivers are more likely to pass yellow lights, and we can improve this situation by enhancing driving learning for maladjusted drivers.

A CROSS SECTIONAL STUDY REGARDING AWARENESS OF TRAFFIC RULES.

Road accidents had been a major cause for concern across the Indian subcontinent. In 2019 alone, the country reported over 151 thousand fatalities due to road accidents. Each year, about three to ve percent of the country's GDP was invested in road accidents. Road accidents are on the rise in countries that have experienced signicant and rapid development. This is due to the increased use of automobiles as a result of urbanization and development. A cross-sectional study of undergraduate medical students at a government medical college in Ahmedabad was done. Present study done among 298 under graduate students; out of them 203 were male and 95 were female students. Although the study population had good knowledge regarding trafc rules, only 36.24% were using helmet, 46.31% were using seat belts regularly, 57.72% were using mobile while driving. 76.17% were serviced vehicle properly, 75.84% were slowed down their vehicle when they see yellow light at trafc signal. Almost 98.99 % were using signal to change lane.

Enhancing light scattering effect of white LEDs with ZnO nanostructures

Pc-LEDs, the lighting method that blends blue LED light with yellow light from phosphor to discharge white radiation, is one of the most advance known for high lumen output. However, pc-LEDs has inferior due to angular CCT deviation, which prevent pc-LEDs from reaching better performance. As a result, this research is conducted to address the need of pc-LEDs development by introducing a configuration doped with ZnO nanoparticles. The finite-difference time-domain (FDTD) method and the phosphor layer containing ZnO were applied in the experiments. The effect of ZnO-filled on the performance of color quality pc-LEDs is confirmed through calculated results. In particular, the uniformity of scattered light is improved with the presence of ZnO. In addition, ZnO particles also minimize the deviation of color temperature and enhance the color quality. Although there is a small decline in lumen output to achieve better color temperature uniformity, however, with suitable concentrations such as 0.25% N-ZnO, 0.25% S-ZnO, and 0. 75% R-ZnO, the decline is acceptable. The research on ZnO pc-LEDs demonstrates that this affordable and simple configuration can improve lighting properties and create other directions to enhance white light

AN ANALYSIS OF TYPE I DILEMMA ZONE AT SIGNALISED INTERSECTIONS

Intersections, for vehicles coming from different directions, are conflict points in road networks. When a driver approaching a signalised intersection encounters the yellow light, he/she is in a dilemma either to safely stop or to pass through the intersection during clearance time. The decision to stop or to pass may change depending on some factors such as duration of yellow light, deceleration and acceleration rate, width of intersection, speed and length of vehicle, etc. This study aims to put forth the effects of some related factors affecting the length of the Type I dilemma zone. To perform this study, five factors including vehicle speed, maximum deceleration rate, perception-reaction time, clearance time, the total intersection width-vehicle length were considered and a total of 648 different traffic cases were investigated. The study results showed that the Type I dilemma zone length increased with the increase of speed, total intersection width-vehicle length and perception-reaction time, but decreased with the increase of clearance time and deceleration rate.