Expertly Speaking

A “Crash” Course on Motorcycles & Motorcycle Expertise

By Curtis M. Beloy, P.E. ::::

Motorcycles are unique vehicles that require special training and licensing to operate. They have unique handling characteristics and respond to disturbances differently than passenger vehicles. From a very simplistic point of view, a motorcycle can be thought of as being comprised of two wheels, a front structure that includes the handlebars and front fork, and a rear structure that includes the frame, fuel tank, and motor. The motorcycle contacts the ground at two points- the contact patches of the front and rear wheels. Unlike passenger vehicles, motorcycles are subject to unique vibrations and instability due to their ability to pivot about the joints on the motorcycle and the contact patches with the road. Because of this design, motorcycles can “weave” and “wobble” while traveling down the road, as well as lean/tip over (capsize) to the side.

continue reading

Motorcycle Fast Facts: Determining if Your Tires are Safe

Every street legal motorcycle tire has a serial number and a 4-digit date code indicating the year the tire was manufactured.  If there are only three digits, the tire was manufactured before 2000 and should be discarded.  For additional information contact Curt M. Beloy, PE at or by phone at 215-659-2010.

continue reading

Steven M. Schorr, PE to Speak at the American Academy of Forensic Sciences

Steven M. Schorr, PE, President of DJS Associates, Inc., will be a guest speaker at the American Academy of Forensic Sciences on February 21, 2013 in Washington, DC.  His presentation is entitled: “Use of High-Definition Survey (HDS) Laser Scanning in Forensic Engineering”. For additional information contact Joy S. Falk, VP, at or by phone at 215-659-2010.

continue reading

DJS Associates Announces New Software Technology for Optimizing Video Data

This software is useful in enhancing/optimizing video data.  Video evidence, whether from a cell phone or surveillance video, is invariably of poor quality, suffering from issues like low resolution, poor lighting, noise, and shake.  This software aims to correct, or at least minimize these issues. For additional information, contact Jon W. Adams at or by phone at 215-659-2010.

continue reading

Epileptic Triathlete Drowns in Indoor Pool

Dr. Tom Griffiths, ED.D ::::

A middle aged Tri-athlete drowned during training in a swimming pool with lifeguards on duty; he was also an Epileptic    Epileptics are approximately 20 times more likely to drown compared to swimmers without seizure disorders.  In fact, the Tri-athlete experienced a previous seizure in the same pool within the same year.  Although he was hospitalized, he was successfully rescued and resuscitated during his first pool seizure.  During his second seizure, he was not so lucky.  Although there were only a few swimmers in the pool that day, the lifeguards on duty missed the athlete, in part because he was performing dangerous underwater endurance drills.

continue reading

Inadequate Security at Parking Lot

William J. Birks, Jr., CPP ::::

Case Analysis: A woman drove her car into the parking lot of a US based retailer.  She secured a parking space, abutting a pedestrian walkway that ran perpendicular from the store’s entrance/exit, down the middle of the parking lot.  As she exited her car and turned right onto the walkway, the woman was unaware that she was being observed by two males that were “cruising” the lot in a stolen automobile. As she approached the end of the walkway, a car passed in front of her then made a right turn, against the traffic pattern. As the car slowed, a man seated in the passenger’s seat jumped out of the car as it rolled to a stop. The man quickly approached the woman from behind just as she arrived at the end of the walkway and lunged at the handbag she was carrying over her shoulder.  The force of the attack caused the woman to be pulled backwards onto the ground.  The man continued trying to pry the purse away but she would not relent.  As the fruitlessness of his endeavor quickly became apparent to the assailant, he retreated back to the car from which he came.  The car sped away, leaving the woman on the ground suffering from multiple injuries, requiring emergency medical attention.

continue reading
1 118 119 120 121 122 123

Do You Need Help Finding the Right Expert for Your Case?