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Operating Wisely
Published in Carl Bozzuto, Boiler Operator's Handbook, 2021
Volume is a measure of space. A building’s volume is described as cubic feet, abbreviated as ft3, meaning multiply the width times the length times the height. One cubic foot is the space that is one foot wide by one foot long by one foot high. For volumetric measurements, there is also the gallon. It takes 7.48 of them to make a cubic foot.
Mathematical model validation of floating PV parks impact on the growth of green algae using experimental chamber
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2023
To observe the green algae decay, an experimental setup is developed. The experimental chamber consists of a one cubic foot glass box that works as a reservoir. The chamber uses black glass to stop the light entering from outside. The controller unit is installed in which all sensors, power supplies, controllers, and displays are placed. This controller board is a central unit for testing and data is displayed and recorded from a 20 × 4 LCD. To turn on electronic circuitry DC power supply is utilized. To measure the temperature and humidity level, digital sensor DHT11 is used. To measure lux and irradiance inside an experimental chamber, light intensity sensor BH1750 is used, which measures the light intensity in lux. Different mathematical tools and methods can be utilized for calculating the uncertainty. The standard uncertainty of specific sensors and devices is measured by (Elminshawy et al. 2021). Similarly, accuracy of the sensor used in this experiment is mentioned in Table 3. A polycrystalline solar panel of 5 W is utilized having the following specifications depicted in Table 1.
Influence of the dental implant macrogeometry and threads design on primary stability: an in vitro simulation on artificial bone blocks
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2021
Luca Comuzzi, Margherita Tumedei, Francesco De Angelis, Felice Lorusso, Adriano Piattelli, Giovanna Iezzi
To evaluate the various clinical conditions, different types and densities of solid rigid polyurethane blocks (SawBones H, Pacific Research Laboratories Inc, Vashon, Wash) were used in the present investigation: 20 pounds per cubic foot (PCF) block with a 30 PCF cortical layer of 1 mm.20 pounds per cubic foot (PCF) without cortical layer10 pounds per cubic foot (PCF) block with a 30 PCF cortical layer of 1 mm.10 pounds per cubic foot (PCF) without cortical layer30 pounds per cubic foot (PCF) Lamina with a thickness of 3 mm20 pounds per cubic foot (PCF) Lamina with a thickness of 3 mm
Re-examining the Pioneering Studies on Eye Movements in Aviation: Connecting the Past to the Present
Published in The International Journal of Aerospace Psychology, 2021
Leandro L. Di Stasi, Carolina Diaz-Piedra
Twenty years after the original studies, researchers from Raytheon Systems Company, a contractor of the U.S. Air Force Research Laboratory in Mesa, AZ, implemented a very similar technique. The OT3, as a Phoenix, raised again. Wetzel and collaborators (Wetzel et al., 1997, 1998) used a head-mounted eye tracker with an integrated side-mounted scene camera (VISION 2000 Portable Eye Measurement System, EL-MAR Inc., Ontario, Canada). This eye tracker was more sophisticated, and easier to use, than the original Cubic Foot Remote Oculometer. In their studies, instructor pilots used the technique to provide individually oriented feedback to F-16 student pilots during flight simulator training missions. The overall (subjective) positive responses to the technique led to the implementation of the system into the F-16 B-Course Training Syllabus. It is worth noting that, despite the high similarity between this training technique and the original OT3, these previous studies from the seventies and the eighties were not referenced.