The Gastrostomy Feeding Button™

The button™ feeding device replaces conventional long-term gastrostomy feeding tubes. Health care professionals can educate parents on maintenance of the button and provide them with emotional support

Design description of the Tangaye Village photovoltaic power system

The engineering design of a stand alone photovoltaic (PV) powered grain mill and water pump for the village of Tangaye, Upper Volta is described. The socioeconomic effects of reducing the time required by women in rural areas for drawing water and grinding grain were studied. The suitability of photovoltaic technology for use in rural areas by people of limited technical training was demonstrated. The PV system consists of a 1.8-kW (peak) solar cell array, 540 ampere hours of battery storage, instrumentation, automatic controls, and a data collection and storage system. The PV system is situated near an improved village well and supplies d.c. power to a grain mill and a water pump. The array is located in a fenced area and the mill, battery, instruments, controls, and data system are in a mill building. A water storage tank is located near the well. The system employs automatic controls which provide battery charge regulation and system over and under voltage protection. This report includes descriptions of the engineering design of the system and of the load that it serves; a discussion of PV array and battery sizing methodology; descriptions of the mechanical and electrical designs including the array, battery, controls, and instrumentation; and a discussion of the safety features. The system became operational on March 1, 1979

Operational performance of the photovoltaic-powered grain mill and water pump at Tangaye, Burkina Faso (formerly Upper Volta)

A photovoltaic (PV) system powering a grain mill and water pump was installed in the remote African village of Tangaye, Burkina Faso (formerly Upper Volta) under the sponsorship of the U.S. Agency for International Development (AID) and by the National Aeronautics and Space Administration (NASA) Lewis Research Center (LeRC) in early 1979. The presence reports covers the second two years of operation from April 1981 through June 1983. During this time, the grain mill and water pump were operational 96 and 88 percent of the time respectively, and the PV system generated sufficient electricity to enable the grinding of about 111 metric tons of finely ground flow and the pumping of over 5000 cm sq of water from the 10 m deep well. The report includes a description of the current configuration of the system, a review of system performance, a discussion of the socioeconomic impact of the system on the villagers and a summary of results and conclusions covering the entire four-year period

Smooth empirical Bayes estimation of observation error variances in linear systems

A smooth empirical Bayes estimator was developed for estimating the unknown random scale component of each of a set of observation error variances. It is shown that the estimator possesses a smaller average squared error loss than other estimators for a discrete time linear system

Biden’s “Blue” Hydrogen Plan is not the Answer

The excitement about hydrogen as a fuel and energy source is similar to buying an electric vehicle (EV) thinking it will reduce your personal CO2 emissions. On the surface, it seems great! No greenhouse gas emissions while driving is certainly better than the greenhouse gasses released from a normal combustion engine car, but when you consider other effects, it’s no longer as great. What if the grid that you plug your EV into is powered primarily by coal? What about the environmental and human rights impacts of mining the materials to make the batteries? What about the lack of a battery recycling program in the United States

The Adoption of Christianity by the Irish and Anglo-Saxons: The Creation of Two Different Christian Societies

From the Celts to the Anglo-Saxons, nomadic tribes of Europe fostered pagan beliefs. Today, few records exist to explain these faiths because of their roots in oral tradition and a demise of animistic traditions brought about by the adaptation of a new conviction. The Christian faith spread across the continent stretching across the English Channel into present day Ireland and United Kingdom. Unlike other periods in history, the conversion to Christianity among the Celts and Anglo-Saxons occurred quickly. In order to understand this cultural shift, we must consider those people responsible for it. Mainly, we must ask what tactics missionaries used to spread the faith to the pagan people. Led by accredited religious figures such as St. Patrick and St. Augustine, lofty boasts about a universal faith allowed Christianity to supplant the widespread pagan beliefs. The missionaries also used certain devices to spread the faith including, but not limited to, the conversion of kings before peasants and the incorporation of certain pagan rituals into Christian practices. Both of these strategies eased the people’s transition to the new beliefs. Without the success of these missionaries, the Anglo-Saxons and Celts might not have adapted writing and certain values, which would have resulted in a significantly different world than we know today