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  2. Tensile testing - Wikipedia

    en.wikipedia.org/wiki/Tensile_testing

    Tensile testing, also known as tension testing, [1] is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength , breaking strength , maximum elongation and reduction in area. [ 2 ]

  3. Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Stirling_engine

    One test showed hydrogen to be 5% (absolute) more efficient than helium (24% relatively) in the GPU-3 Stirling engine. [74] The researcher Allan Organ demonstrated that a well-designed air engine is theoretically just as efficient as a helium or hydrogen engine, but helium and hydrogen engines are several times more powerful per unit volume .

  4. Computation of cyclic redundancy checks - Wikipedia

    en.wikipedia.org/wiki/Computation_of_cyclic...

    Observe that after each subtraction, the bits are divided into three groups: at the beginning, a group which is all zero; at the end, a group which is unchanged from the original; and a blue shaded group in the middle which is "interesting".

  5. Cyclic code - Wikipedia

    en.wikipedia.org/wiki/Cyclic_code

    Cyclic codes can be linked to ideals in certain rings. Let = [] / be a polynomial ring over the finite field = ().Identify the elements of the cyclic code with polynomials in such that (, …,) maps to the polynomial + + +: thus multiplication by corresponds to a cyclic shift.

  6. Universal testing machine - Wikipedia

    en.wikipedia.org/wiki/Universal_testing_machine

    Typical lectromechanical Universal Testing Machine Test fixture for three point flex test. A universal testing machine (UTM), also known as a universal tester, [1] universal tensile machine, materials testing machine, materials test frame, is used to test the tensile strength (pulling) and compressive strength (pushing), flexural strength, bending, shear, hardness, and torsion testing ...

  7. Cyclomatic complexity - Wikipedia

    en.wikipedia.org/wiki/Cyclomatic_complexity

    Exiting the loop, there is a conditional statement (group below the loop) and the program exits at the blue node. This graph has nine edges, eight nodes and one connected component, so the program's cyclomatic complexity is 98 + 2×1 = 3. There are multiple ways to define cyclomatic complexity of a section of source code.

  8. Test fixture - Wikipedia

    en.wikipedia.org/wiki/Test_fixture

    Test fixtures can be set up three different ways: in-line, delegate, and implicit. In-line setup creates the test fixture in the same method as the rest of the test. While in-line setup is the simplest test fixture to create, it leads to duplication when multiple tests require the same initial data.

  9. Reed–Solomon error correction - Wikipedia

    en.wikipedia.org/wiki/Reed–Solomon_error...

    Deep-space concatenated coding system. [8] Notation: RS(255, 223) + CC ("constraint length" = 7, code rate = 1/2). One significant application of Reed–Solomon coding was to encode the digital pictures sent back by the Voyager program.