Richard Davis

Could more voices than Romney, Flake or Cheney have made a difference? Richard is a professor emeritus of political science at BYU.

Could more voices than Romney, Flake or Cheney have made a difference?

Mere days before the Health Resources and Services Administration’s (HRSA) 340B Rebate Model Pilot Program’s (“Pilot”) scheduled January 1, 2026...

Governor Kay Ivey has reappointed Drake State Community & Technical College President Dr. Patricia Sims to the Alabama Port Authority Board of Directors.

Despite approval ratings dropping generally, the majority of Republicans still say Donald Trump is doing a good job.

Reality is stranger than fiction in Damian McCarthy's third feature outing, Hokum . Adam Scott ( Severance Step Brothers ) stars as Ohm Bauman, a successful American horror fiction writer on a pilgrimage to scatter his parents' ashes in Ireland, where they had honeymooned many years ago.

In our last article, we talked about how Barbershop music became an organization. Now we’ll look at how that organization is faring.

Secretary of Defense Pete Hegseth is using his government platform to promote his personal evangelical Christian beliefs, which has led to the reclassification of religious affiliations and the sup…

Before he was appointed Deputy Attorney General by President Trump, Todd Blanche was Trump's personal attorney.

Stochastic preignition (SPI) or low-speed preignition (LSPI) is an abnormal combustion phenomenon observed in downsized turbocharged direct-injection spark-ignition engines at highly boosted conditions. SPI results from the ignition of the air-fuel mixture from a fuel or oil droplet or a detached deposit before the spark discharge, and its occurrence can lead to extremely high peak pressures and severe knock, which can cause physical damage to the engine. This phenomenon limits the downsizing and boosting potential of direct-injection spark-ignition engines, thereby constraining the efficiency benefits that can be achieved. The propensity for SPI to occur is impacted by engine operating conditions as well as the properties of the fuel, fuel additives, lubricant, and lubricant additives. To mitigate its occurrence, it is important to understand the factors that impact the frequency of SPI events. As this abnormal combustion phenomenon is relatively recent, there was a lack of a standard procedure to detect the impact of a parameter on SPI frequency. This study details the development and validation of an engine dynamometer test procedure—the TOP TIER™ Standardized Dynamometer Test Method to Evaluate Additized Detergent Gasoline for SPI—approved by the Center for Quality Assurance (CQA), to evaluate gasoline additives for their impact on SPI. In this project, the newly validated SPI test protocol was used to compare the relative SPI tendencies of four TOP TIER™ fuel additives at maximum retail concentration against unadditized SPI test fuel, which served as the baseline. All four fuel additives were tested three times in randomized order. The results revealed that none of the TOP TIER™ additives tested had a statistically significant impact on the SPI rate.