Laser diode

making comparison between usage of LED and HPS lamps. From this calculation, comparison in term of energy efficiency is obtained between High Pressure Sodium (HPS), type of lamps which is commonly used in public street lighting with Light Emitting Diode (LED) for automation system which operate according traffic flow by sensing the movement within certain time. The comparison with other LED is also made, which used for public street lighting that operated within 12 hours from 7.00 p.m. until…

ET’s big reveal to Elliot relies heavily on cinematography and lighting in order to highlight the new aura that appears in the movie. The scene’s unique setup creates a different ambiance about who ET is, but also reveals new information to the audience. Through framing, tonality, and speed, the scene has the ability to reach a certain depth because of the different tactics used in cinematography. The cinematography helps bring out the true feelings of the scene by getting audiences to pay…

Any student who takes an introductory biology class knows that humans create more waste than every other species combined. Much of this waste stems from our selfish over utilization of the resources found here on earth. Results of this can been seen during the BP oil spill scandal. However, waste production occurs even in beneficial establishments like hospitals. Waste is produced in hospitals in multiple areas, such as the cafeteria, used medical tools and toxic materials produced by operations…

Another study has shown that taking electrical devices, like a cell phone, to bed during the night can affect sleeping patterns. The handheld devices emit a blue LED light that tricks the brain into staying awake longer. The brain produces a chemical hormone called melatonin that prepares the body for sleep. The light from the screen however throw a person’s internal clock off and make them stay awake. Why does the blue light keep people up? A study in 2002 found that light signals in our eyes…

apparatus(SLA) machine in 1983, and then 3 years later, in 1986, went on to patent his creation, and co-found 3d Systems with that success. On the other hand, Carl Deckard was working on his own RP(Rapid prototype) machine, which he termed Selective Laser Sintering(SLS). -For what may it be used (needs addressed and/or functions performed)? 3d printing, or…

3D Printing and the Additive Manufacturing Process Additive manufacturing (AM) is a process where an object is created by adding layer-upon-layer of material. This basic process requires the use of a computer, CAD software, the material(s) and the appropriate machine to fabricate the end result. AM has been used in many applications. At first, it was used in Rapid Prototyping (RP). Today, AM is used to create end-products used in many different applications, from aerospace, automotive and…

Case studies Many cases in the literature have utilized CT imaging to address bioarchaeological questions; however, predominately they focus on mummification studies, with only a few cases in reference to bone specifically. One such case was in the article Non-invasive Archaeology of Skeletal Material by CT scanning and Three-dimensional Reconstruction by Lynnerup et al. (1997). In this case the skeletal remains are of a very fragile and delicate 7000 year old ancient Sumerian skeleton that was…

printing has made its presence known within mainstream media. The first appearance of 3d printing in modern cinematography was released in 1998. The movie was titled “Small Soldiers” and it featured a scene where a toy was made layer by layer due to a laser, much like how a SLA printer functions. SLA printers are one of many different types of 3d printing commonly available today. The other most notable variety of 3d printing is FDM. FDM printers and SLA Printers function in relatively the same…

3D printing is a mechanical process where solid objects are created by ‘printing’ successive layers of material to replicate a shape modeled in a computer has been adopted in numerous industries. Many people can benefit from this kind of technology such as wounded warriors that may have lost limbs in combat, or even those that have dysfunctional organs and could use a new organ. The creator of 3D printing, Charles Hull, on August 8th 1984 filed for a patent on his photo solidification apparatus.…

The most recent example of this idea of duplication as opposed to original generation is the modern phenomenon of three-dimensional or 3D printing. There has been a huge amount of interest following 3D printing as it has transcended from a futuristic figment of the imagination to a shelf-stocked product in a number of years and can be purchased today from just €230. The incredibly innovative sensation that is 3D printing is seen to be completely ahead of its time and to have come out of nowhere.…