Ladder Operators for Quantum Systems Confined by Dihedral Angles von Ley-Koo, E., Sun, G.-H.

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Analysis of Gas Nitriding Characteristics under Different Cold Hardening and Nitriding Pressure Conditions for Low-Carbon Low-Alloy Steel von Zhou, Z A., Fu, W.T., Zhang, R.H., Qi, J.J., Jin, G.F., Wang, Z.H., Sun, S.H.

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