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Its beginnings only date back to the 1990’s, but it has quickly become a major staple in our lives. Americans and people around the world are becoming more and more reliant on using the internet for their informational, academic, social, entertainment, organizational, and connectional needs.Along with all of the good that this has brought a new disorder is arising, internet addiction disorder....Due to the displacive character of the martensitic transformation, applied stress plays a very important role.During cooling of the SMA material below temperature in absence of applied stresses, the variants of the martensitic phase arrange themselves in a self-accommodating manner through twinning, resulting in no observable macroscopic shape change (see the stress-temperature diagram shown in Figure 1).Similar to drug addictions, the Internet provides a “high” feeling, which addicts become dependent on.Internet addiction is divided into three categories: excessive gaming, sexual preoccupation, and e-mail/text messaging addiction (Medindia 1)....Smart parents who are looking to raise healthy children would take this into serious consideration. Tao Ran, an addiction specialist, gave a talk to parents who children have gone to a therapy center for Internet addiction....I could understand watching a kid’s show every once and a while, but T. [tags: internet addiction, technology, computers] - The World Wide Web is an intriguing information highway.

These combined requirements are currently not fully realized with conventional rotary, internal combustion, or turbine-based propulsion.Introduction to Shape Memory Alloys Shape memory alloys (SMAs) are metallic alloys which can recover permanent strains when they are heated above a certain temperature.The key characteristic of all SMAs is the occurrence of a martensitic phase transformation.The official link for this solicitation is: TECHNOLOGY AREA(S): Air Platform OBJECTIVE: Develop and demonstrate lightweight, durable, low cost recuperators for 5 Kilowatt turbo-generators to power Do D Group 2/small Group 3 unmanned aerial systems (UASs) for increased reliability and operational capability.DESCRIPTION: Tactical requirements for unmanned aerial systems are exceeding current capabilities for performance (payload, range), reliability, maintainability, and supportability.The martensitic transformation is a shear-dominant diffusionless solid-state phase transformation occurring by nucleation and growth of the martensitic phase from a parent austenitic phase.When an SMA undergoes a martensitic phase transformation, it transforms from its high-symmetry, usually cubic, austenitic phase to a low-symmetry martensitic phase, such as the monoclinic variants of the martensitic phase in a Ni Ti SMA.Electronic Theses and Dissertations (ETDs) are prepared as text-based PDF files.ETDs can contain non-text elements such as sound, video, and hypertext links.NOTE: The Solicitations and topics listed on this site are copies from the various SBIR agency solicitations and are not necessarily the latest and most up-to-date.For this reason, you should use the agency link listed below which will take you directly to the appropriate agency server where you can read the official version of this solicitation and download the appropriate forms and rules.