Search Results for: dpss

Counterfeit Currency Detection: UV and Magnetic Sensors
Counterfeit Currency Detection: UV and Magnetic Sensors
Introduction Counterfeit currency has plagued the United States economy since before the time of our founding fathers. This article will give a brief history on the origins of fraudulent money in the ...
Photoacoustic Imaging for Cardiovascular Disease Diagnosis
Photoacoustic Imaging for Cardiovascular Disease Diagnosis
Cardiovascular Disease and Photoacoustic Imaging Cardiovascular diseases (CVDs) are the number one cause of death in the world, accounting for 31% of all deaths. This class of diseases includes heart ...
Laser Ignition for Eco-Friendly, Gas-Fueled Automobiles
Laser Ignition for Eco-Friendly, Gas-Fueled Automobiles
Greenhouse Gas Emission: A Case Study In 2007, German officials pledged that the country would reduce greenhouse gas emissions 40% by the year 2020. The country dedicated $580 billion and passed over ...
Optical Fibers for Medical Sensors and Light Delivery
Optical Fibers for Medical Sensors and Light Delivery
Optical fibers are a convenient instrument for robust light transfer. Their low losses have enabled their wide use in long distance telecommunication systems while service providers like AT&T, Verizon ...
Diode Laser Array: Delivering High Power Outputs by Combining Stacks
Diode Laser Array: Delivering High Power Outputs by Combining Stacks
High power lasers are used in the industry routinely for cutting, drilling, welding and micromachining materials. They have also found applications in medicine where tissue needs to be cut or heated. The ...
Laser Tissue Interactions: Biological Factors to Consider for Dermatology
Laser Tissue Interactions: Biological Factors to Consider for Dermatology
In 1963, Leon Goldman became the first person to report using lasers in dermatology. Goldman reported the effects of Ruby laser in the selective destruction of cutaneous pigmented structures, like black ...
Tissue Welding Using Lasers for Sutureless Surgical Procedures
Tissue Welding Using Lasers for Sutureless Surgical Procedures
Tissue welding is a relatively new procedure that aims to seal wounds and openings in a surgery using laser. The first tissue welding application using lasers was done in 1964 to join small blood vessels ...
A Novel Handheld Viscosity Sensor for Medical and Industrial Applications
A Novel Handheld Viscosity Sensor for Medical and Industrial Applications
A research team at Keio University in Japan devised a novel handheld viscosity sensor capable of quick, non-contact in situ measurements. Viscosity is a fundamental property for liquid analysis in a wide ...
Holographic Technology: More Than Entertainment
Holographic Technology: More Than Entertainment
People who are fans of superhero movies will remember that iconic scene in Iron Man where Tony Stark is in his workshop moving around all of the holograms. Even more iconic is that scene in A New Hope when ...
Photobleaching Using Lasers for Teeth Whitening in Dentistry
Photobleaching Using Lasers for Teeth Whitening in Dentistry
Lasers in dentistry have been explored since the early 1960s. At its infancy, the practitioners of the field used Ruby lasers. They used the pulses emitted from such lasers to ablate the tooth enamel to ...