Barium–doped TiO2 / n-Si photodetector was fabricated by spray pyrolysis exhibited visible enhancement responsivity profile with peak response at 600 nm flat response between 650 and 900 nm. The quantum efficiency was 30% and specific detectivity was 5x1012 W-1Hz1/2cm at peak response. The GaAlAs laser diode was used to estimate the rise time of the detector.

The Subject  of  contritutions  to Jerusalemites  Scientific  in  Egypt  from  8.5  Century  14.11 AD of  noteworthy  studies  Concern  Coming  Of these  Scientists  to  Egypt  has  helped  toth  to  Seek  Knowledge  and  Study  or  teaching  in  the tooming  w0rid of Science  broadly  and  distinctive  through  Scientific  interaction  and  intermingling  of  Civilization  between  Scientists  this  Mixing  effect  of  the  Scientific  life  and  in tellectal  of The  nam

The Andalusi did not leave any poetic art without expressing his psychological and sentimental emotions and the depth of emotions and it sincerity. We found Andalusian translated his emotions into poetry and in many different subjects

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The problem with research lies in hiding the Hanbali approach in building long and short travel provisions, as well as hiding some provisions relating to short travel that are not provided for by the jurists of Hanbali (in their books).

The research aims to demonstrate the approach and standards on which they based the long and short travel provisions, as well as to reflect the provisions of some of the issues that are silent on long and short travel, with evidence and significance.

The research included a preface and two researches, the researcher in the preface talked about the reality of long and short travel, in the first research on the approach of ha

عُني العرب منذ القدم بإستعمال الجواهروالأحجار الكريمة ، وإزدادت هذه العناية على مر العصور ، فقد إستعملوا الحلي المتنوعة ، والملابس المطعمة بالجواهر والأحجار الكريمة .

        The subject of the research is the collective words = Jawami Al-kalim. Those who wants to know this subject to be aware of the benefit of  "Al-Ejaz and Al-iktisar " and to cover the Rhetoric of signal should think carefully the abbreviations because the collective words because it is the a face of the important faces represented by the abbreviation of shortness as it is and old subject where it can be found in every source of rhetoric books which were old or modern. But what attracts attention is that this subject did not take all its range in study in the way that discover its beauty concerning style, words, sentences and meaning. This cause