In this research work, hydrodynamic characteristics and gas–liquid mass transfer in a laboratory scale inverse turbulent bed reactor were studied. In order to characterize internal flow in the reactor, the residence time distribution (RTD) was obtained by the stimulus-response technique using potassium chloride as a tracer. Different solid hold-up (0–0.37) and air superficial velocity (2.7–6.5 ...

BACKGROUND To describe suicide rates in the indigenous and non-indigenous populations of the Nenets Autonomous Okrug (NAO) in 2002-2012, as well as associated socio-demographic characteristics. STUDY DESIGN Retrospective population-based mortality study. METHODS Data from autopsy reports were used to identify 252 cases of suicide in the NAO in 2002-2012. Data on socio-demographic characteri...

Descriptive evidence shows that there is large cross-country variation in self-reported work disability rates of the elderly in Europe. In this paper we analyse whether these differences are genuine or they just reflect heterogeneity in reporting styles. To shed light on the determinants of work-disability differentials across countries, we combine a wide set of individuals' socioeconomic and h...

This paper studies the caching characteristics of HTTP requests and responses that pass through production Web proxies. We evaluate caching opportunities and problems. Traces with 5.9 million entries from a large Internet Service Provider (ISP) and 2.0 million entries from an Intranet firewall are studied. We find maximum cache hit rate opportunities of about 40% for an ISP and 70% for an Intra...

This study empirically confirms the existence of the status quo deviation aversion hypothesis, but not increasing status quo deviation aversion, in people who own their primary residence. The examination was conducted in the 20 Case-Shiller MSAs across the country. The results are systemic and do not vary substantially by demographic characteristics. However, variations are noted with different...

Wuyang Hu* George W. Borden Thomas R. Harris Leigh J. Maynard A household survey in the mid-Colorado River communities of Laughlin, Nevada and Bullhead City, Arizona examined local residents' gaming activities. A censored regression analysis distinguished between factors affecting gaming participation versus expenditures. Results suggest that gaming behavior can often be predicted with knowledg...

Memory resident database systems (MMDB’s) store their data in main physical memory and provide very high-speed access. Conventional database systems are optimized for the particular characteristics of disk storage mechanisms. Memory resident systems, on the other hand, use different optimizations to structure and organize data, as well as to make it reliable. This paper surveys the major memory...