Flapping wing micro air vehicles have many possible applications and have therefore been the subject of extensive research. The Atalanta project aims to develop a fully autonomous, 10 cm wingspan, flapping wing sensor platform. The structure is based on a fully compliant resonating structure with passive wing pitching. Several design improvements have taken place since the last report. Introduc...

Manuscript submitted October 10, 2007. This work was supported in part by the U.S. Department of Defense under Contracts FA8651-04C-0234 and FA8651-05HI-C-0097 and the NPS/US Special Forces Command (USSCOM) Cooperative Field Experimentation Program R. J. Bachmann is with BioRobots, LLC Cleveland, OH 44127 USA ([email protected]). F. J. Boria and P. G. Ifju are with the University of F...

Diesel-operated Load Haul Dumper (LHD) vehicles are commonly used in underground coal mines. Despite their value as utility vehicles, the main drawback of these vehicles is that they generate diesel particulate matter (DPM), a known carcinogenic agent. In this work, an attempt is made to model DPM flows generated by LHDs in an underground coal mine environment for different DPM flow and intake ...

This paper describes a procedure to update parameters in the finite element model of a Micro Air Vehicle (MAV) to improve displacement predictions under aerodynamics loads. Because of fabrication, materials, and geometric uncertainties, a statistical approach combined with Multidisciplinary Design Optimization (MDO) is used to modify key model parameters. Static test data collected using photog...

Although airbags reduce the overall risk of injury and death from motor vehicle accidents, the airbag may cause injuries during deployment. We present a case of apparently isolated sternal fracture caused by airbag deployment during a motor vehicle crash and we discuss the ultrasonographic diagnosis. We also examine the mechanism of injury caused by the airbag.

Title of thesis: EXPERIMENTAL INVESTIGATION OF A QUAD-ROTOR BIPLANE MICRO AIR VEHICLE Christopher Michael Bogdanowicz Master of Science, 2015 Thesis directed by: Dr. Inderjit Chopra Department of Aerospace Engineering Micro air vehicles are expected to perform demanding missions requiring efficient operation in both hover and forward flight. This thesis discusses the development of a hybrid air...

the present study was conducted to investigate the impacts of retrofitted cng vehicles on airpollutant emissions in tehran over a 20 years period using available statistical data, precise automobile tests, data analysis, and leap software. the obtained results revealed an increase in air pollutant emissionsincluding co (equal to 1030.77 thousand tons), nox (equal to 1030.77 thousand tons), thc ...

the present study was conducted to investigate the impacts of retrofitted cng vehicles on airpollutant emissions in tehran over a 20 years period using available statistical data, precise automobile tests, data analysis, and leap software. the obtained results revealed an increase in air pollutant emissionsincluding co (equal to 1030.77 thousand tons), nox (equal to 1030.77 thousand tons), thc ...

This work explores the historical effectiveness of efficiency improvements in reducing mankind’s impact on the earth. Ten activities are analyzed, including pig iron production, aluminum production, nitrogen fertilizer production, electricity generation from coal, oil, and natural gas, freight rail travel, passenger air travel, motor vehicle travel, and refrigeration. The data and analyses pres...