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نمایش تعداد 1-10 از 487

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    Electromagnetic Shielding of Metal Enclosures with Apertures 

    نوع: Conference Paper
    نویسنده : مجتبی جودکی; Mojtaba Joodaki
    سال: 2018
    خلاصه:

    operating voltages. Among the electromagnetic compatibility (EMC) topics, shielding is a prominent one and there is a burgeoning trend to study its different aspects. The inevitable need for the air ventilations, input/outputs and other means of connections...

    Characterization of a new shielding rubber for use in neutron–gamma mixed fields 

    نوع: Journal Paper
    نویسنده : ُS. Salimi; نیما قلعه; A. Asadi Amirabadi; Nima Ghal-Eh
    سال: 2018
    خلاصه:

    A variety of formulations was investigated for the fabrication of an appropriate shielding rubber to be used in neutron–gamma mixed fields. Having considered the required mechanical properties together with tungsten as the gamma-ray absorbing...

    Synthesis, characterization and UV-shielding performance of TiO2/SiO2 Nanofibers 

    نوع: Conference Paper
    نویسنده : ناصر شاه طهماسبی; محمود رضائی رکن آبادی; محمد بهدانی; ام الفجر نخعی; Nasser Shahtahmassebi; Mahmood Rezaee Roknabadi; Mohammad Behdani; Omolfajr Nakhaei
    سال: 2016
    خلاصه:

    characterized by X-Ray Diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis techniques. The influence of different amount of TiO2 and SiO2 nanoparticles (NPs) on UV-shielding performance of TiO2/SiO2 nanofibers was investigated...

    An optimal approach for smart grid economic dispatch 

    نوع: Conference Paper
    نویسنده : Jizhong Zhu
    ناشر: IEEE
    سال: 2014

    Electromagnetic interference (EMI) shielding of ordered mesoporous carbon (OMC)/paraffin composites 

    نوع: Journal Paper
    ناشر: American Scientific Publishers
    سال: 2014

    A quality survey on different shielding configurations of gamma ray detector used with a portable PGNAA system 

    نوع: Journal Paper
    نویسنده : E.Bayat; A.Afarideh; F.Abbasi Davani; نیما قلعه; Nima Ghal-Eh
    سال: 2016
    خلاصه:

    The appropriate gamma-ray detector shielding configuration is critical for a precise prompt gamma neutron activation analysis (PGNAA) measurement. The shielding material has to prevent the radiation damage to the detector crystal and it must produce...

    Improving the Shielding Effectiveness of a Rectangular Metallic Enclosure with aperture by Using Extra Shielding Wall 

    نوع: Journal Paper
    نویسنده : مهدی بهادر زاده; محمد ناصر مقدسی; امیررضا عطاری; Amir Reza Attari
    سال: 2008
    خلاصه:

    A new method for improving shielding effectiveness (SE)

    of a rectangular enclosure with multiple apertures has been proposed.

    In this method in order to compensate the effects of the apertures

    on reduction of (SE) parameter...

    Shielding Effectiveness Measurement for Extremely Small Dimension Enclosures 

    نوع: Journal Paper
    نویسنده : علی شورورزی; مجتبی جودکی; Ali Shourvarzi; Mojtaba Joodaki
    سال: 2018
    خلاصه:

    In this paper, practical aspects of a newly proposed method based on the aperture impedance for estimation and measurement of the shielding effectiveness (SE) of enclosures will be discussed in more details. A special de-embedding procedure...

    Increasing the Personnel Safety of a Landmine Detection System using Proper Shielding Materials 

    نوع: Journal Paper
    نویسنده : سیدهاشم میری حکیم آباد; علیرضا وجدانی نقره ئیان; Seyyed Hashem Miri Hakimabad; Alireza Vejdani Noghreiyan
    سال: 2009
    خلاصه:

    investigated

    different thicknesses of proper neutron shielding materials

    such as polyethylene and boric acid around the system to shield neutrons

    and increase the safety conditions for the operators. The effect

    of using different...

    The Effects of Breasts Shielding on Dose Reduction in CT Examinations 

    نوع: Conference Paper
    نویسنده : پریسا اخلاقی; لاله رفعت متولی; سیدهاشم میری حکیم آباد; Parisa Akhlaghi; Laleh Rafat Motavali; Seyyed Hashem Miri Hakimabad
    سال: 2013
    خلاصه:

    enough to be a matter of concern. Therefore, the purpose of our study was to measure breasts dose during chest CT with and without bismuth and lead shielding.

    In this study, the amount of dose reduction achievable by shielding the breast tissues...

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