Counting rational points on quartic del Pezzo surfaces with a rational conic

Upper and lower bounds, of the expected order of magnitude, are obtained for the number of rational points of bounded height on any quartic del Pezzo surface over Q that contains a conic defined over Q

Extraction and Quantification of Hydrolyzable Tannins in Acorns from Different Species of Oak Trees (Quercus spp.)

Do white-tailed deer (Odocoileus virginianus) prefer to eat certain types of acorns based on tannin content? Hydrolyzable tannins consist of gallate groups connected via ester linkages to a carbohydrate (D-glucose) The Prussian Blue method was used to determine hydrolyzable tannin conten

Flexible seal for valves Patent

Flexible inflatable seal for butterfly valve

Contributions of divergent and nondivergent winds to the kinetic energy balance of a severe storm environment

Divergent and rotational components of the synoptic scale kinetic energy balance are presented using rawinsonde data at 3 and 6 h intervals from the Atmospheric Variability Experiment (AVE 4). Two intense thunderstorm complexes occurred during the period. Energy budgets are described for the entire computational region and for limited volumes that enclose and move with the convection. Although small in magnitude, the divergent wind component played an important role in the cross contour generation and horizontal flux divergence of kinetic energy. The importance of V sub D appears directly to the presence and intensity of convection within the area. Although K sub D usually comprised less than 10 percent of the total kinetic energy content within the storm environment, as much as 87 percent of the total horizontal flux divergence and 68 percent of the total cross contour generation was due to the divergent component in the upper atmosphere. Generation of kinetic energy by the divergent component appears to be a major factor in the creation of an upper level wind maximum on the poleward side of one of the complexes. A random error analysis is presented to assess confidence limits in the various energy parameters

A Study of the Relationship between Heat and Humidity and Cardiac Mortality

Approximately fourteen hundred cardiac related calls were run by Greenville County Emergency Medical Service ambulance personnel in 1980. Four hundred seventy of these patients died. A study was undertaken to determine the relationship that heat and humidity had on these cardiac mortalities. Various statistical procedures utilized in the study indicate that of the sample studied, fewer deaths occurred in the hottest temperatures on the average day while the coldest temperatures produced the highest average daily death rate. Humidity studies showed that the higher the humidity, the lower the average daily death rate. High heat and high humidity shown in the combined form of the National Weather Service’s Discomfort Index indicated that as heat and humidity rise on the Discomfort Index Scale, the death rate also rises

The Olympic sponsorship: a meeting planning perspective

This study examines the process associated with implementing a major international meeting/exposition from the corporate perspective. Using the 1992 Summer Olympics as a backdrop for a client V.I. P. program by a major U.S. Optical Corporation, this project tracks the planning, development and implementation of a meeting planning incentive program. Topics examined include: site-selection, budget, ticketing for events, on-site transportation, food & beverage, daily agenda, premiums, international documentation and security. The study provides a comprehensive overview of planning major meetings

Research into the feasibility of thin metal and oxide film capacitors

Feasibility of thin metal and oxide film capacitor