نتایج جستجو برای: fi radiation
تعداد نتایج: 264076 فیلتر نتایج به سال:
With the inexorable increase in the use of mobile devices, wireless connectivity is expected by users anywhere, anytime. In general, this requirement is addressed in office buildings or public locations through the use of Wi-Fi technology but Wi-Fi is not well adapted for use in large experiment halls and complex underground environments, especially those where radiation exposure is an issue, s...
In 2010, there were an estimated 730,000 new cancer cases in females, resulting in approximately 270,000 deaths [ 1 ] . Although malignancy remains a critical health concern, signi fi cant medical advances in cancer detection and treatment have improved survival rates for patients. Gonadotoxic chemotherapy or radiation for malignant disease may result in altered ovarian function, affecting both...
This paper presents a novel CPW fed patch antenna supporting a wide band from 2.7 GHz – 6.5 GHz. The antenna is compact with size 32 x 30 x 1.6mm, built over FR4-epoxy substrate (εr=4.4). Bandwidth enhancement has been achieved by using the concept of modified ground structure (MGS). For this purpose structural design has been optimized by parametric simulations in CST MWS. The proposed antenna...
Despite comprehensive treatment with surgery, radiation, and chemotherapy, medulloblastoma remains the most common malignant brain tumor in children with a fi ve-year disease free survival rate of only 40% in those less than 10 years of age. Although adjuvant regimens are an integral component in patient management, radiotherapy in very young children is limited by the susceptibility of the imm...
As an attractive candidate for dark matter, the primordial black holes (PBHs) in mass range $(8\ifmmode\times\else\texttimes\fi{}{10}^{14}\ensuremath{\sim}{10}^{16})\text{ }\text{ }\mathrm{g}$ could be detected via their Hawking radiation, including neutrinos and antineutrinos of three flavors. In this paper, we investigate possibility to constrain PBHs as matter by measuring (anti)neutrino sig...
This article investigates two current incarnations of ‘lo-fi’ music and questions the extent to which these subgenres are actually low in fidelity. In essence, mainstream ‘hi-fi’ productions use similar effects, such as filtering sound like a radio or adding noise vinyl record. To understand lo-fi today, this explores by hip-hop producer ambient producer, drawing upon analytical methods Alan Mo...
. ~ydrodyn~mic expansion of the solar corona is the basis for "solar corpusc ular radiatIOn . The qUiet day coronal temperatures of 1 to 2X 106 OK yield a solar wind of several h';lDdred km/sec and a density of 5 to 50 particles/cm3 at the orbit of Earth. The solar ~lVllld draws out m to spa~e t he. lines of fore.e of t he gen eral one-gauss solar field, to give an Il1terplanetary fi eld t hat ...
بحران آب یکی مهمترین معضلات جهان امروز در بسیاری از کشورهای دنیا می باشد. این در حالی است که بخش زیادی از منابع آب شیرین در بخش کشاورزی مصرف می شود. مصرف بی رویه آب در بخش کشاورزی، علاوه بر تشدید معضل بحران آب، زمینه آبشویی املاحی چون نیترات از محدوده ریشه و آلودگی آبخوانها به مقادیر خطرساز آنها را فراهم می آورد. بهبود شیوه های مدیریتی در زمینه آبیاری می تواند راهکاری مناسب برای کنترل هر دو معض...
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