Showing 1,861 - 1,880 results of 2,055 for search '"scintillator"', query time: 0.11s Refine Results
  1. 1861

    Data challenges in pulsar searches by Van Heerden, E

    Published 2017
    “…This shortfall in pulsar detections can be attributed to radio frequency interference (RFI), red noise and scintillation (Lazarus et al. 2015).</p> <p>For this thesis, and in order to investigate and quantify these claims, I first developed a new technique to simulate pulsar search data that contain different types of RFI and varying noise baselines (i.e. red noise). …”
    Thesis
  2. 1862

    Peramalan jumlah kandungan elektron menggunakan kaedah suapan ke hadapan rangkaian neural di Semenanjung Malaysia by Mat Akir, Rohaida

    Published 2018
    “…Therefore, this study aims to investigate the possibilities for the modeling of TEC values derived from the GPS Ionospheric Scintillation and TEC Monitor (GISTM) receiver using feed forward neural network (NN). …”
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    Thesis
  3. 1863

    Fetal drug exposure after maternally administered CFTR modulators Elexacaftor/Tezacaftor/Ivacaftor in a rat model by Danni Li, Yimin Zhu, Martin Donnelley, David Parsons, Mark D. Habgood, Elena K. Schneider-Futschik

    Published 2024-02-01
    “…Fetal tissue samples were collected at embryonic day (E) 19 and analyzed using liquid scintillation counting for acute experiments or liquid chromatography-mass spectrometry for sub-chronic experiments. …”
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    Article
  4. 1864

    Case report: Association between PTEN-gene variant and an aggressive case of multiple dAVFs by Glaucia Suzanna Jong-A-Liem, Glaucia Suzanna Jong-A-Liem, Talita Helena Martins Sarti, Talita Helena Martins Sarti, Mariusi Glasenapp dos Santos, Luciano Marcus Tirotti Giacon, Raphael Wuo-Silva, Alex Machado Baeta, José Maria de Campos Filho, Feres Chaddad-Neto, Feres Chaddad-Neto

    Published 2024-04-01
    “…Its phenotypic spectrum includes Cowden syndrome (CS), Bannayan–Riley–Ruvalcaba syndrome (BRRS), Proteus syndrome, autism spectrum disorders (ASD), some sporadic cancers, Lhermitte–Duclos disease (LDD), and various types of associated vascular anomalies.Clinical presentationA previously healthy 27-year-old woman was experiencing visual scintillating scotomas and mild chronic headaches for the past 2 years. …”
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    Article
  5. 1865

    Statistical Analysis of SF Occurrence in Middle and Low Latitudes Using Bayesian Network Automatic Identification by Jian Feng, Yuqiang Zhang, Shuaihe Gao, Zhuangkai Wang, Xiang Wang, Bo Chen, Yi Liu, Chen Zhou, Zhengyu Zhao

    Published 2023-02-01
    “…Spread-F (SF) is one of the most important types of the ionospheric irregularities as it causes ionospheric scintillation which can severely affect the performance and reliability of communication, navigation, and radar systems. …”
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    Article
  6. 1866

    Development of a functionalized UV-emitting nanocomposite for the treatment of cancer using indirect photodynamic therapy by Prakhar Sengar, Patricia Juárez, Andrea Verdugo-Meza, Danna L. Arellano, Akhil Jain, Kanchan Chauhan, Gustavo A. Hirata, Pierrick G. J. Fournier

    Published 2018-02-01
    “…However, substantial outcomes have still not been achieved due to the low luminescence efficiency of scintillating nanoparticles and weak energy transfer to the photosensitizer. …”
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    Article
  7. 1867

    Proteins of the sympathetic nervous system by Bartlett, S, Bartlett, Stephen

    Published 1973
    “…The pipetting, electrophoresis and scintillation-counting steps were found not to introduce significant errors into the profiles, or to distort recoveries appreciably, end the least reliable stage in the analysis was found to be the mechanical sectioning of the frozen gel, which may give rise to both random and systematic errors. …”
    Thesis
  8. 1868

    Advances in Ionospheric Space Weather by Using FORMOSAT-7/COSMIC-2 GNSS Radio Occultations by Jann-Yenq Liu, Chien-Hung Lin, Panthalingal Krishnanunni Rajesh, Chi-Yen Lin, Fu-Yuan Chang, I-Te Lee, Tzu-Wei Fang, Dominic Fuller-Rowell, Shih-Ping Chen

    Published 2022-05-01
    “…Taking advantage of the larger number of low-latitude soundings, the F7/C2 TGRS observations were used here to examine the 3D electron density structures and electrodynamics of the equatorial ionization anomaly, plasma depletion bays, and four-peaked patterns, as well as the S4 index of GNSS signal scintillations in the equatorial and low-latitude ionosphere, which have been previously investigated by using F3/C measurements. …”
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    Article
  9. 1869

    A New Environmentally Friendly Mortar from Cement, Waste Marble and Nano Iron Slag as Radiation Shielding by Ahmed M. El-Khatib, Mahmoud I. Abbas, Mohamed Abd Elzaher, M. Anas, Mohamed S. Abd El Moniem, Mahmoud Montasar, Ebeid Ellithy, Mahmoud T. Alabsy

    Published 2023-03-01
    “…For this purpose, the NaI scintillation detector and radioactive point sources (<sup>241</sup>Am, <sup>133</sup>Ba, <sup>137</sup>Cs, <sup>60</sup>Co, and <sup>152</sup>Eu) were utilized to measure several shielding parameters, such as the linear attenuation coefficient (LAC), mass attenuation coefficient (MAC), half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP), for the produced mortars at different photon energies. …”
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    Article
  10. 1870
  11. 1871

    Tracker-in-Calorimeter (TIC) Project: A Calorimetric New Solution for Space Experiments by Gabriele Bigongiari, Oscar Adriani, Giovanni Ambrosi, Philipp Azzarello, Andrea Basti, Eugenio Berti, Bruna Bertucci, Lorenzo Bonechi, Massimo Bongi, Sergio Bottai, Mirko Brianzi, Paolo Brogi, Guido Castellini, Enrico Catanzani, Caterina Checchia, Raffaello D’Alessandro, Sebastiano Detti, Matteo Duranti, Noemi Finetti, Valerio Formato, Maria Ionica, Paolo Maestro, Fernando Maletta, Pier Simone Marrocchesi, Nicola Mori, Lorenzo Pacini, Paolo Papini, Sergio Bruno Ricciarini, Gianluigi Silvestre, Piero Spillantini, Oleksandr Starodubtsev, Francesco Stolzi, Jung Eun Suh, Arta Sulaj, Alessio Tiberio, Elena Vannuccini

    Published 2022-09-01
    “…In the TIC proposal, the silicon sensors are moved inside a highly-segmented isotropic calorimeter with a couple of external scintillators dedicated to charge reconstruction. In principle, this configuration has a good geometrical factor, and the angle of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-rays can be precisely reconstructed from the lateral profile of the electromagnetic shower sampled, at different depths in the calorimeter, by silicon strips. …”
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    Article
  12. 1872

    Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix by Mahmoud I. Abbas, Ahmed M. El-Khatib, Mohamed Elsafi, Sarah N. El-Shimy, Mirvat F. Dib, Hala M. Abdellatif, Raqwana Baharoon, Mona M. Gouda

    Published 2023-03-01
    “…The SEM images showed the uniformity and porosity of a cross-section of samples. The NaI (Tl) scintillation detector was used with four radioactive sources (<sup>241</sup>Am, <sup>137</sup>Cs, <sup>133</sup>Ba, and <sup>60</sup>Co) of various photon energies. …”
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    Article
  13. 1873

    Charge based intra-cartilage delivery of single dose dexamethasone using Avidin nano-carriers suppresses cytokine-induced catabolism long term by Bajpayee, Ambika Goel, Quadir, Mohiuddin Abdul, Hammond, Paula T, Grodzinsky, Alan J

    Published 2017
    “…DEX release kinetics from these conjugates was characterized using 3H-DEX-Avidin (scintillation counting). Cartilage explants treated with IL-1α were cultured with or without Avidin-DEX conjugates and compared to soluble DEX. …”
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    Article
  14. 1874

    Development of Radioactivity Measurement Device of 196Au and 44Scm under Strong Interference by JIANG Wengang;XIE Feng;BAI Tao;MA Yue;LIANG Jianfeng;ZHANG Xiaolin;XU Jiang;HE Xiaobing;SHI Quanlin

    Published 2022-05-01
    “…Thirdly, a thin layer of lead shield has been placed between the radioactive source distributed evenly in the liquid scintillation and a wellshaped high purity germanium (HPGe) crystal to absorb the Xrays emitted by the decay of the 196Au, as results, the coincidence between the Xrays and the characteristic gammarays emitted by 196Au in the HPGe crystal reduces significantly, and the detection efficiency of this measurement device for 196Au increases too. …”
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    Article
  15. 1875

    Assessment of the Natural Radioactivity of Polish and Foreign Granites Used for Road and Lapidary Constructions in Poland by Tomasz Drzymała, Aneta Łukaszek-Chmielewska, Sylwia Lewicka, Joanna Stec, Barbara Piotrowska, Krzysztof Isajenko, Paweł Lipiński

    Published 2020-06-01
    “…The measurements were carried out with 2 × 2” NaI(Tl) scintillation detector. The measured specific activity on natural radioactive isotopes were within the following ranges: 5.8–312 [Bq kg<sup>−1</sup>], 5.5–189 [Bq kg<sup>−1</sup>] and 109–1590 [Bq kg<sup>−1</sup>] for <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K, respectively. …”
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    Article
  16. 1876

    Abstract 124: Vertebral Artery Web as a Rare Cause of Ischemic Stroke in a young male by Harsimran Kaur, Romil Singh, Russell Cerejo

    Published 2023-11-01
    “…Methods Case Report Results 35‐year‐old male presented with persistent, intermittent, bilateral visual scintillations lasting 30‐60 seconds for one month. Neurological examination positive for bi nasal superior quadrantanopia. …”
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    Article
  17. 1877

    Observing crosswind over urban terrain using scintillometer and Doppler lidar by D. van Dinther, C. R. Wood, O. K. Hartogensis, A. Nordbo, E. J. O'Connor

    Published 2015-04-01
    “…Two methods are applied to estimate <span style="border-top: 1px solid #000; color: #000;"><i>U</i><sub>&bot;</sub></span> from the scintillometer signal: the cumulative-spectrum method (relies on scintillation spectra) and the look-up-table method (relies on time-lagged correlation functions). …”
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    Article
  18. 1878

    تحديد كتلة النترينو بدراسة طيف أشعة بيتا السالبة لنظير السترونسيوم–90 by جبور جبور, جهاد ملحم, هبة الأطرش

    Published 2016-09-01
    “…In this work, using a scintillation detector with Strontium-90 source as a try to measure the electronic neutrino mass from a simple technique and different from what is used in this area where current techniques used are very complex and require substantial amounts. …”
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    Article
  19. 1879

    The usefulness of agent emission imaging - high mechanical index ultrasound mode in the diagnosis of urolithiasis: a prospective preliminary study by Artur Salmaslıoğlu, Mesut Bulakçı, Barış Bakır, Ravza Yılmaz, Yunus Emre Akpınar, Tzevat Tefik, Öner Şanlı, Sevda Özel, Bülent Acunas

    Published 2018-05-01
    “…Gray-scale US had a sensitivity of 66.1% and positive predictive value (PPV) of 88.7% for detecting calculi, while twinkling artifact of color Doppler had a sensitivity of 70.4% and PPV of 94.3%. The scintillation artifact of AEI-High MI mode had a sensitivity of 75.1% and PPV of 95.9%. …”
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    Article
  20. 1880

    Dynamics of 137Cs accumulation by cranberry on sphagnum bogs of Polissia of Ukraine by Volodymyr Krasnov, Ihor Ivaniuk, Oleh Zhukovsky, Tetiana Kurbet, Oleksandr Orlov

    Published 2022-05-01
    “…Investigation was conducted on stationary experimental plots (SEP) in Zhytomyr Polissia. 137Cs specific activity was measured on spectrum analyzers with scintillation and semiconductor detectors. Obtained results testify about intensive 137Cs migration on sphagnum bogs of Polissia of Ukraine. …”
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    Article