The paper describes an overall approach for determining tilt control system performance. Firstly the issues relating to dynamic performance are reviewed, then some trade-off graphs are given, based upon the PCT index approach which is now accepted as a European Standard. These graphs inter-relate vehicle speed, the maximum tilt angle, and the cant deficiency compensation factor, and help to det...

OBJECTIVES To evaluate the relationship between Trendelenburg tilt and internal jugular vein (IJV) diameter, and to examine any cumulative effects of tilt on the IJV diameter. METHODS Using a tilt table, healthy volunteers were randomised to Trendelenburg tilts of 10 degrees, 15 degrees, 20 degrees, 25 degrees, and 30 degrees. Ultrasound was used to measure and record the lateral diameter of ...

In this work, we address the antenna tilt optimization problem for a two tier cellular network consisting of macrocells and femtocells, where both tiers share the same spectrum and their positions are modelled via two independent Poisson Point Processes (PPPs). First, we derive the coverage probability for a traditional cellular network consisting only of macrocells and obtain the optimum tilt ...

Introduction: Using backpacks has arisen complaints regarding musculoskeletal pains among students. The aim of this study is to investigate the relationship between demographic information and bag weight with Neck Disability Index (NDI), angles and head and neck postures among students. Material and Methods: This descriptive-analytical and cross-sectional study was conducted among 80 students ...

Most solar collectors in Nigeria are mounted without consideration of optimum tilt angle for maximum radiation. To address the gap, a flat plate surface collector area 0.15 m2, hinged on horizontal support quick adjustment inclination between 0 to 90o was fabricated marked out at 1o intervals telescopic leg graduated degrees. Measurement radiation varying degrees taken 12:00 noon and 2.00 pm 4 ...