A new algorithmic setting is proposed for the discrete-time finite-horizon linear quadratic (LQ) optimal control problem with constrained or unconstrained final state, no matter whether the problem is cheap, singular, or regular. The proposed solution, based on matrix pseudoinversion, is completed and made practically implementable by a nesting procedure for welding optimal subarcs that enables...

اخیراً مقاله‏ای با عنوان «بررسی آثار قرار گرفتن در معرض امواج تلفن همراه (900 مگاهرتز) در اوایل تولد بر حافظه و فعالیت آنزیم سوپراکسید دیسموتاز و کاتالاز در بافت مغز موش صحرایی» را مطالعه نمودم که در آن فصلنامه پژوهشی [1] به چاپ رسیده بود. همان‏طور که محققین محترم نیز در ابتدای مقاله مذکور اشاره نموده بودند «در دنیای امروز علاقه زیادی برای بررسی آثار زیان بار امواج الکترومغناطیسی به ویژه تلفن هم...

The Medical Assessor to the Committee on Safety ofMedicines recently issued' a letter entitled "Jaundice following repeated exposure to halothane," in which he noted that 130 reports of jaundice following anaesthesia had been received by the committee between 1964 and 1972, every case being associated with the use of halothane. Ninety-four of these patients had been exposed to halothane more th...

Inequalities which bound the closed-loop eigenvalues in an LQ-optimal system are presented. It is shown that the eigenvalues are bounded by two half circles with radii r1 and r2 and center at 0, where = 0 is the imaginary axis, and that the imaginary parts of these eigenvalues are bounded from up and below by two lines parallel to the real axis.

It is challenging to try to extract physics features from the 10-page long formula of the three loops space-like anomalous dimensions1. That these coefficients could reveal general features of QCD can be illustrated by the example of coherence of QCD radiation. Consider the formula for the small-N limit of the time-like anomalous dimension which, in double logarithmic approximation (DLA), is gi...

For a language learner, any new word is a pseudoword. A pseudoword is a string of of letters or phonemes that sounds like an existing word in a language, though it has no meaning in the lexicon. On the other hand, speakers are well aware of permissible phonemes, their frequencies and collocations in their language due to the phonotactics inherent in the language. For example, saktal is a pseudo...

Previous research has shown that prior exposure to a word's substitution neighbor earlier in the same sentence can disrupt processing of that word, indicating that interword lexical priming occurs naturally during reading, due to the competition between lexical candidates during word identification. Through the present research, we extended these findings by investigating the effects of prior e...

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