We propose a systematic method for creating constellations of unitary space–time signals for multiple-antenna communication links. Unitary space–time signals, which are orthonormal in time across the antennas, have been shown to be well-tailored to a Rayleigh fading channel where neither the transmitter nor the receiver knows the fading coefficients. The signals can achieve low probability of e...

In the publication Growth Platforms for a Competitive Australia, McKinsey & Co. (1995) compared Australia’s relative economic prosperity with those of leading countries such as the United States. The report highlighted that Australia’s GDP per capita is 30 percent behind the best performing country, the United States. Most of this gap is due to lower labour productivity. The report was based on...

We propose and investigate a new channel through which the resource curse a stylized fact that countries rich in natural resources grow slower operates. Predatory governments are more likely to expropriate corporate profits in natural resource industries when the price of resources is higher. Corporations whose profits are more dependent on the price of resources can mitigate the risk of exprop...

Over the past several years, organizations in high-risk industries such as nuclear power and aviation have become increasingly aware of the role that safety culture plays in shaping reliable and safe operations. As a result, safety professionals working in other industries and transportation modalities such as manufacturing, construction, chemical and petroleum processing, and traffic safety ha...

Oxygen is one of the most important products in chemical industries. This chemical element is used in various processes such as: refinery industries, manufacturing metal and other industrial operations. For instance, oxygen with high purity is utilized in different chemical processes like: steel construction, paper industries, wastewater treatment and glass production. In 1907, oxygen was produ...

This paper examines the role of the federal government in the market for terrorism reinsurance. We investigate the stock price response of affected industries to a sequence of 13 events culminating in the enactment of the Terrorism Risk Insurance Act (TRIA) of 2002. In the industries most likely to be affected by TRIA—banking, construction, insurance, real estate investment trusts, transportati...

The capability to automatically identify shapes, objects and materials from the image content through direct and indirect methodologies has enabled the development of several civil engineering related applications that assist in the design, construction and maintenance of construction projects. This capability is a product of the technological breakthroughs in the area of image processing that ...

with rapid economic development and industrialization, the construction industry continues to rank among the most hazardous industries in the world. therefore, construction safety is always a significant concern for both practitioners and researchers. the objective of this study was to create a structural modeling of components that influence the safety performance in construction projects.we f...

Construction industry has the highest ratio of fatality of workers in comparison with other industries. Construction safety has been always a matter of focus to control safety risks. This article presents a new flexible method of safety risk assessment by adding Hybrid Value Number (HVN) to the assessment equation. As a result of using this method, the results of assessment process will be more...

Historically, the design and construction industry has been slow to innovate. As a result, productivity in the construction industry has declined substantially compared to other industries. Inefficiencies in this industry are well documented. However, the potential for cost savings and increased efficiency through the use of the Internet and e-commerce may not only increase the efficiency of th...