1. Tabular data are the earliest form and remain a staple of official statistics data products. Familiar examples of tabular data products in official statistics include count data such as age-race-sex and other demographic data, concentration (or percentage) data such in financial or energy utilization statistics, and magnitude data such as total retail sales or air pollution data. Confidentia...

Indoor air quality (IAQ) is the problem that people increasingly pay attention to. With the development of Chinese railway undertaking, air-conditioned train is developing to the direction of higher speed and more comfortable. However, in China, people pay more attention to the temperature and the relative humidity in train compartments, but do not care for IAQ, so it leads to poor IAQ in train...

The Madrid–Barcelona air route constitutes one of the main aerial routes in the European corridor in terms of traffic demand (4.2 million passengers in 2003). To deal with such a high demand, three airline companies (Iberia, Air Europa, and Span Air) globally offer more than 60 flights per day either way. Currently, the construction of a high-speed railway line between the two cities is under w...

when any vehicle runs on the road, it is subjected to bump and potholes which result in vibration that affects the passenger comfort and vehicle handling. The suspension system is an assembly of tires, springs, shock absorbers and linkages that connect a vehicle to its wheels and is used to absorb and damp out the road shocks. In designing of suspension, it is characterized by the suspension wh...

introduction sulfur dioxide has been widely studied among the human- made pollutants. air pollution is a major environmental risk to health. the less air pollution, the better the cardiovascular and respiratory health of the population will be, both long- and short-term. several studies have demonstrated relation between on short and long term effects exposure to air pollutants with human healt...

In this paper, a modeling tool for risk assessment analysis of the movement of hydrocarbon contaminants in the vadose zone and mass flux of contamination release into the groundwater table was developed. Also, advection-diffusion-reaction equations in combination with a three-phase equilibrium state between trapped air, soil humidity, and solid particles of unsaturated soil matrix were numerica...

This research is an air table device design and laboratory scale experimentation. Air a tool to separate valuable minerals from mineral impurities of tin ore based on differences in specific gravity, shape size using air/wind media. The the starts manufacture as well other main components, including; feed hopper, ventilation tertoron cloth. Then next stage calculation selection driving motor fo...

Use of externally pressurized air bearings allows for the design of mechanical systems requiring extreme precision in positioning. One application is the fine control for the positioning of mirrors in large-scale optical telescopes. Other examples come from applications in robotics and computer hard-drive manufacturing. Pressurized bearings maintain a finite separation between mechanical compon...