TKE Founders
TKE may refer to: * Tau Kappa Epsilon, a college fraternity. * Turbulence kinetic energy, a property of turbulent flows. * Tenakee Seaplane Base, Tenakee Springs, Alaska, IATA code TKE * TK Elevator ThyssenKrupp AG (, ; stylized as thyssenkrupp) is a German industrial engineering and steel production multinational conglomerate. It is the result of the 1999 merger of Thyssen AG and Krupp and has its operational headquarters in Duisburg an ...

Tau Kappa Epsilon
Tau Kappa Epsilon (), commonly known as or Teke, is a social college fraternity founded on January 10, 1899, at Illinois Wesleyan University. The organization has chapters throughout the United States and Canada, making the Fraternity an international organization. Since its founding in 1899, Tau Kappa Epsilon Fraternity has never had an exclusionary or discriminatory clause to prevent individuals from joining and has instead admitted members based on their "personal worth and character". As of fall 2022, there are 222 active chapters and colonies with over 296,000 lifetime members. While Tau Kappa Epsilon is primarily mentioned as a collegiate fraternity, the organization emphasizes that it is a "Fraternity for Life". Many chapters have active alumni associations that support philanthropic causes, mentor collegiate members, and host social events. Famous Teke alumni that continued their involvement with the Fraternity include NFL quarterback Terry Bradshaw, country music singer ...
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Turbulence Kinetic Energy
In fluid dynamics, turbulence kinetic energy (TKE) is the mean kinetic energy per unit mass associated with eddies in turbulent flow. Physically, the turbulence kinetic energy is characterised by measured root-mean-square (RMS) velocity fluctuations. In the Reynolds-averaged Navier Stokes equations, the turbulence kinetic energy can be calculated based on the closure method, i.e. a turbulence model. Generally, the TKE is defined to be half the sum of the variances (square of standard deviations) of the velocity components: k = \frac12 \left(\, \overline + \overline + \overline \,\right), where the turbulent velocity component is the difference between the instantaneous and the average velocity u' = u - \overline, whose mean and variance are \overline = \frac \int_0^T (u(t) - \overline) \, dt = 0 and \overline = \frac\int_0^T (u(t) - \overline)^2 \, dt \geq 0 , respectively. TKE can be produced by fluid shear, friction or buoyancy, or through external forcing at low-frequency ...
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Tenakee Seaplane Base
Tenakee Seaplane Base is a state-owned public-use seaplane base located in Tenakee Springs, a city on Chichagof Island in the Hoonah-Angoon Census Area of the U.S. state of Alaska. Scheduled airline service is subsidized by the Essential Air Service program. The National Plan of Integrated Airport Systems for 2015-2019 categorized it as a ''general aviation'' airport based on 657 enplanements (passenger boardings) in 2012 (the ''commercial service'' category requires at least 2,500 enplanements per year). As per the Federal Aviation Administration, this airport had 639 enplanements in calendar year 2008, 617 enplanements in 2009, and 645 in 2010. Facilities and aircraft Tenakee Seaplane Base has a seaplane landing area designated E/W which measures 10,000 by 7,000 feet (3,048 x 2,134 m). It also has a helipad designated H1 with a wood surface measuring 76 by 66 feet (23 x 20 m). For the 12-month period ending December 31, 2006, it had 650 aircraft operations, an averag ...
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