[en] This paper will describe methods of implementing such windows for: (1) DCL and MAIL; (2) Command Procedures; and (3) the VMS V4.0 editors EDT, LSE and TPU. While VMS and a number of utilities have the SPAWN command available to the user, the window interface to be described has been found in practice to be simpler to use because: (1) windows are consistently invoked with a single key command; and (2) confusion is minimized because one always knows if one is in a window

[en] In this work, we have developed a different algorithm than the classical one on phase-shifting interferometry. These algorithms typically use constant or homogeneous phase displacements and they can be quite accurate and insensitive to detuning, taking appropriate weight factors in the formula to recover the wrapped phase. However, these algorithms have not been considered with variable or inhomogeneous displacements. We have generalized these formulas and obtained some expressions for an implementation with variable displacements and ways to get partially insensitive algorithms with respect to these arbitrary error shifts.

[en] Kholmetskii, Missevitch and Yarman correct an error that appeared in my recent note on Faraday's law and present an alternative derivation of the law. The wrong step in the derivation is pointed out. (letters and comments)

[en] A double-disc instrument for measuring an involute is introduced, whose measuring principle is the same as the 'rolling artifact method' developed by PTB. In this paper, measurement error and generation length deviation caused by radius deviation of the base disc are analyzed. In order to simplify the error compensation model and increase compensation accuracy, a new method, called the coordinate transformation method, is used to analyze measurement data, which can remove measurement errors caused by radius deviation of the base disc in theory. Two measurement experiments with different base discs prove the feasibility of the coordinate transformation method, and the consistency error of the measurements is 0.2 µm when the same involute tooth profile was measured

[en] We find an error in the note and suggest a correct expression for Faraday's law via the vector potential. (letters and comments)

[en] Artifacts are random or systematic errors in scintigraphic images. The causes of artifacts include detector or imaging equipment failure, improper methodological procedure, pathophysiological condition of the patient, or improperly chosen radiopharmaceutical. Some artifacts encountered in practice or simulated are demonstrated

[en] The coordinates of the supernova of AD 1572 have been recomputed from the original measurements of Tycho Brahe, Thomas Digges, and Michael Maestlin, in an attempt to investigate the positional discord between the supernova and its remnant. It is suggested that the discrepancy apparent from Tycho Brahe's measurements can be attributed to a small systematic error in his instrument and/or his observational technique. (author)

[en] We comment on a fatal flaw in the analysis contained in the work of Martínez-y-Romero et al., [J. Math. Phys. 54, 053509 (2013)], which concerns the motion of a point particle in an inverse square potential, and show that most conclusions reached there are wrong. In particular, the manifestly senseless claim that, in the attractive potential case, no bounded orbits exist for negative energies, is traced to a sign error. Several more mistakes, both in the classical and the quantum cases, are pointed out

No abstract available

[en] We introduce a new notion of tensor product of functionals and apply it to problems of numerical integration. We find the exact orders of the errors arising on various classes of functions, some of which are known and some are new