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2. Terrace ledge kink model - Wikipedia

   en.wikipedia.org/wiki/Terrace_ledge_kink_model

   In chemistry, the terrace ledge kink (TLK) model, which is also referred to as the terrace step kink (TSK) model, describes the thermodynamics of crystal surface formation and transformation, as well as the energetics of surface defect formation. It is based upon the idea that the energy of an atom’s position on a crystal surface is ...

3. WAC Corporal - Wikipedia

   en.wikipedia.org/wiki/WAC_Corporal

   The WAC Corporal was the first sounding rocket developed in the United States and the first vehicle to achieve hypersonic speeds. [1] It was an offshoot of the Corporal program, that was started by a partnership between the United States Army Ordnance Corps and the California Institute of Technology (named "ORDCIT") in June 1944 with the ultimate goal of developing a military ballistic missile.

4. Solid-state transformer - Wikipedia

   en.wikipedia.org/wiki/Solid-state_transformer

   A solid-state transformer usually contains a transformer, inside the AC-to-AC converter or DC-to-DC converter, which provides electrical isolation and carries the full power. This transformer is smaller due to smaller DC-DC inverting stages between transformer coils, which consequently mean smaller transformer coils required to step up or step ...

5. ISO 10303-21 - Wikipedia

   en.wikipedia.org/wiki/ISO_10303-21

   STEP-file is a widely used [1] data exchange form of STEP. ISO 10303 can represent 3D objects in computer-aided design (CAD) and related information. Due to its ASCII structure, a STEP-file is easy to read, with typically one instance per line. The format of a STEP-file is defined in ISO 10303-21 Clear Text Encoding of the Exchange Structure. [2]

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   Sine wave inverters with more than three steps in the wave output are more complex and have significantly higher cost than a modified sine wave, with only three steps, or square wave (one step) types of the same power handling. Switched-mode power supply (SMPS) devices, such as personal computers or DVD players, function on modified sine wave ...