Gotowe bibliografie tematyczne / Radio field strength

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
  6. Raporty organizacyjne

Gotowa bibliografia na temat „Radio field strength”

Autor: Grafiati
Data publikacji: 3 czerwca 2025
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Radio field strength"

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Zhang, Yu, and Hui-Chun Wu. "Upper Field-strength Limit of Fast Radio Bursts." Astrophysical Journal 929, no. 2 (2022): 164. http://dx.doi.org/10.3847/1538-4357/ac5e2f.

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Abstract Fast radio bursts (FRBs) are cosmological radio transients with an unclear generation mechanism. Known characteristics such as their luminosity, duration, spectrum, and repetition rate, etc., suggest that FRBs are powerful coherent radio signals at GHz frequencies, but the status of FRBs near the source remains unknown. As an extreme astronomical event, FRBs should be accompanied by energy-comparable or even more powerful X/γ-ray counterparts. Here, particle-in-cell simulations of ultrastrong GHz radio pulse interaction with GeV photons show that at ≳3 × 1012 V cm−1 field strengths, q
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Zhang, Yu, and Hui-Chun Wu. "Upper Field-strength Limit of Fast Radio Bursts." Astrophysical Journal 929, no. 2 (2022): 164. http://dx.doi.org/10.3847/1538-4357/ac5e2f.

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Abstract Fast radio bursts (FRBs) are cosmological radio transients with an unclear generation mechanism. Known characteristics such as their luminosity, duration, spectrum, and repetition rate, etc., suggest that FRBs are powerful coherent radio signals at GHz frequencies, but the status of FRBs near the source remains unknown. As an extreme astronomical event, FRBs should be accompanied by energy-comparable or even more powerful X/γ-ray counterparts. Here, particle-in-cell simulations of ultrastrong GHz radio pulse interaction with GeV photons show that at ≳3 × 1012 V cm−1 field strengths, q
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Beck, Rainer. "Measuring interstellar magnetic fields by radio synchrotron emission." Proceedings of the International Astronomical Union 4, S259 (2008): 3–14. http://dx.doi.org/10.1017/s1743921309030014.

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AbstractRadio synchrotron emission, its polarization and its Faraday rotation are powerful tools to study the strength and structure of interstellar magnetic fields. The total intensity traces the strength and distribution of total magnetic fields. Total fields in gas-rich spiral arms and bars of nearby galaxies have strengths of 20–30 μGauss, due to the amplification of turbulent fields, and are dynamically important. In the Milky Way, the total field strength is about 6 μG near the Sun and several 100 μG in filaments near the Galactic Center. – The polarized intensity measures ordered fields
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Gao, Zhisheng, Yaoshun Li, and Chunzhi Xie. "Parameter Estimation for the Field Strength of Radio Environment Maps." Wireless Communications and Mobile Computing 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/2475439.

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The parameters of a radio environment map play an important role in radio management and cognitive radio. In this paper, a method for estimating the parameters of the radio environment map based on the sensing data of monitoring nodes is presented. According to the principles of radio transmission signal intensity losses, a theoretical variogram model based on a propagation model is proposed, and the improved theoretical variation function is more in line with the attenuation of radio signal propagation. Furthermore, a weight variogram fitting method is proposed based on the characteristics of
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Jayati, Ari Endang, Wahyu Minarti, and Sri Heranurweni. "Analisa Teknis Penetapan Kanal Frekuensi Radio Untuk Lembaga Penyiaran Radio Komunitas Wilayah Kabupaten Batang." Jurnal ELTIKOM 5, no. 2 (2021): 73–80. http://dx.doi.org/10.31961/eltikom.v5i2.361.

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The radio frequency spectrum constitutes a limited and strategic natural resource with high economic value, so it must be managed effectively and efficiently to obtain optimal benefits by observing national and international legal principles. Radio Community Broadcasting Institution uses limited frequency allocation in three channels, namely, in the frequency channels 202 (107.7 MHz), 203 (107.8 MHz), and 204 (107.9 MHz), with limited transmit power and area coverage. The problem in this research is the frequency overlap with other community radios in an area. The issue raised is whether it is
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Tsedilina, E. E. "HF radio field strength and total propagation invariants." Radio Science 29, no. 1 (1994): 127–34. http://dx.doi.org/10.1029/93rs02502.

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Krause, Marita. "Magnetic Fields and Halos in Spiral Galaxies." Galaxies 7, no. 2 (2019): 54. http://dx.doi.org/10.3390/galaxies7020054.

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Radio continuum and polarization observations reveal best the magnetic field structure and strength in nearby spiral galaxies. They show a similar magnetic field pattern, which is of spiral shape along the disk plane and X-shaped in the halo, sometimes accompanied by strong vertical fields above and below the central region of the disk. The strength of the total halo field is comparable to that of the disk. The small- and large-scale dynamo action is discussed to explain the observations with special emphasis on the rôle of star formation on the α − Ω dynamo and the magnetic field strength and
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Adekunle, Titus Adediji, Oluwadare Adebusola Samuel, and Sunday Ojo Joseph. "Variability of Microwave Radio Refractivity and Field Strength over Some Selected Locations in Nigeria." Physical Science International Journal 14, no. 3 (2017): 1–11. https://doi.org/10.9734/PSIJ/2017/33447.

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In this study, results of the variation of radio field strength derived from the computation of surface refractivity through measurements of temperature, relative humidity and pressure across seven locations ((Akure (7<em>.</em>15°N<em>, </em>5<em>.</em>12°E<em>)</em>, Lagos (6.30°N, 3.20°E), Abuja (7.10°N, 9.25°E), Jos (9.50°N, 8.50°E), Makurdi (7.30°N, 8.53°E), Port-Harcourt (4.20°N, 7.00°E), and Nsukka (6.90°N, 7.67°E)) in Nigeria are presented. Two years (Jan., 2011–Dec., 2012) archived data as provided by Tropospheric Data Acquisition Network (TRODAN) of the Centre for Atmospheric Researc
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Ibrahim, U., Bawa Musa, and M. Lawal. "Estimating the Variability of Tropospheric Radio Refractivity and Field Strength over Enugu, South-East Nigeria." International Journal of Science for Global Sustainability 10, no. 2 (2024): 251–57. http://dx.doi.org/10.57233/ijsgs.v10i2.678.

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The field strength variability (FSV) assessment highlights the significant impact of atmospheric conditions on radio signal propagation. A diurnal variation in radio refractivity is the primary driver of FSV, with local topography and environmental factors also playing important roles. This study investigated the variation of tropospheric radio refractivity and field strength in Enugu, South-East Nigeria. Through a comprehensive measurement of temperature, humidity and pressure obtained from the network of Vantage Pro 2 automatic weather station installed at the study location for a period of
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Sarma, SBSS. "Estimation of Magnetic Field Strength from Enhanced Solar Radio Emission." Australian Journal of Physics 47, no. 6 (1994): 811. http://dx.doi.org/10.1071/ph940811.

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The manifestation of solar activity on radio noise records at 28.6 MHz is discussed with special emphasis on Type-I noise storms and the associated coronal magnetic fields above the active regions in time. Magnetic fields are estimated, assuming that the Type-I radio emission at decametre wavelengths is due to shock waves, by making use of the observed shock velocity. The results are comparable with the existing estimates.
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Rozprawy doktorskie na temat "Radio field strength"

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Östlin, Erik. "On Radio Wave Propagation Measurements and Modelling for Cellular Mobile Radio Networks." Doctoral thesis, Karlskrona : Blekinge Institute of Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00443.

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To support the continuously increasing number of mobile telephone users around the world, mobile communication systems have become more advanced and sophisticated in their designs. As a result of the great success with the second generation mobile radio networks, deployment of the third and development of fourth generations, the demand for higher data rates to support available services, such as internet connection, video telephony and personal navigation systems, is ever growing. To be able to meet the requirements regarding bandwidth and number of users, enhancements of existing systems and
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Forsberg, Andreas. "Spatial variation of radio frequency magnetic field exposure from clinical pulse sequences in 1.5T MRI." Thesis, Umeå universitet, Institutionen för fysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-90391.

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Cell biological exposure studies in magnetic resonance imaging (MRI) environment, where a complex mixture of strong magnetic fields are present, have attracted considerable interest in recent years. The outcome of such studies might depend strongly on the conditions, for example exposure parameters and spatial variations of exposure. The aim of this thesis has been to give a detailed description of how the radio frequency (RF) magnetic field varies with position and sequence choice within an MRI bore from a patient perspective and to highlight the need of better consistency in future research.
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Painter, Keith B., G. Gregory Haff, N. Travis Triplett, et al. "Resting Hormone Alterations and Injuries: Block vs. DUP Weight-Training among D-1 Track and Field Athletes." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/etsu-works/3777.

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Daily undulating periodization (DUP), using daily alterations in repetitions, has been advocated as a superior method of resistance training, while traditional forms of programming for periodization (Block) have been questioned. Nineteen Division I track and field athletes were assigned to either a 10-week Block or DUP training group. Year and event were controlled. Over the course of the study, there were four testing sessions, which were used to evaluate a variety of strength characteristics, including maximum isometric strength, rate of force development, and one repetition maximum (1RM). A
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Yeh, Jui-Feng, and 葉瑞峰. "The Research on Field Strength Estimation of FM Radio Station in Kaohsiung Area Using Neural Networks." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/24109093531606291122.

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碩士<br>義守大學<br>電機工程學系<br>92<br>The propagation model ITU-R 370 is a popular method of radio field strength estimation in the area of North America and Europe. Because the terrain and climate in Taiwan are different from those in North America and Europe, the performance of ITU-R 370 model is degraded in estimating the field strength of the FM radiobroadcast station in Taiwan area. The drawback will influence the reuse of the frequency, and therefore waste the resource of radio spectrum. Based on the measured data, Back Propagation Neural Network model is used to construct an estima
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Książki na temat "Radio field strength"

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P, Reddell Jerry, and Goddard Space Flight Center, eds. Technique for predicting the radio frequency field strength inside an enclosure. National Aeronautics and Space Administration, Goddard Space Flight Center, 1997.

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J, Reddell, and Goddard Space Flight Center, eds. Technique for predicting the RF field strength inside an enclosure. National Aeronautics and Space Administration, Goddard Space Flight Center, 1998.

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J, Reddell, Goddard Space Flight Center, and United States. National Aeronautics and Space Administration., eds. Technique for predicting the RF field strength inside an enclosure. National Aeronautics and Space Administration, Goddard Space Flight Center, 1998.

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Hallett, Michael P. Technique for predicting the RF field strength inside an enclosure. National Aeronautics and Space Administration, Goddard Space Flight Center, 1998.

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J, Lemmon John, Ketchum Ronald L, and United States. National Telecommunications and Information Administration, eds. Field strength measurements of DGPS and FAA beacons in the 285- to 325-kHz band. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1997.

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Evans, D. R. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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United States. National Aeronautics and Space Administration., ed. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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United States. National Aeronautics and Space Administration., ed. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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Technique for predicting the radio frequency field strength inside an enclosure. National Aeronautics and Space Administration, Goddard Space Flight Center, 1997.

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James R. Carter Nancy F. Wait. Field Strength Calculations for E. L. F. Radio Waves; NBS Technical Note 52. Creative Media Partners, LLC, 2021.

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Części książek na temat "Radio field strength"

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Rembovsky, Anatoly, Alexander Ashikhmin, Vladimir Kozmin, and Sergey Smolskiy. "Radio Emission Source Localization Using Mobile Stations and Field Strength Measurement." In Lecture Notes in Electrical Engineering. Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-98100-0_10.

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Suleman, K. O., A. S. Olawuyi, O. Joseph, et al. "Investigation of Diurnal and Seasonal variation of Radio Refractivity and Field Strength over Ogbomoso, South Western Nigeria." In Advances in Physics Research. Atlantis Press International BV, 2025. https://doi.org/10.2991/978-94-6463-644-4_7.

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Keller, Reto B. "Decibel." In Design for Electromagnetic Compatibility--In a Nutshell. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14186-7_3.

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AbstractThis chapter introduces the topic decibel in a compact form. Decibel is defined as the ratio of two quantities, typically power, voltage, or current. In the field of EMC, the decibel must be understood. One advantage of decibels is that a gain of 10 dB means a gain of 10 dB for current, voltage, and power likewise. This fact helps to prevent misinterpretations and helps to simplify things. This is the main reason why EMC and high-frequency system engineers like to work with decibels.This chapter assumes that values of voltages V [V], currents I [A], power P [W], electric field strength
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Semba, Kouichi. "Emerging Ultrastrong Coupling Between Light and Matter Observed in Circuit Quantum Electrodynamics." In International Symposium on Mathematics, Quantum Theory, and Cryptography. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5191-8_3.

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Abstract The strength of the coupling between an atom and a single electromagnetic field mode is defined as the ratio of the vacuum Rabi frequency to the Larmor frequency, and is determined by a small dimensionless physical constant, the fine structure constant $$\alpha =Z_{vac} / 2R_{K}$$. On the other hand, the quantum circuit including Josephson junctions behaving as artificial atoms and it can be coupled to the electromagnetic field with arbitrary strength (Devoret et al. 2007). Therefore, the circuit quantum electrodynamics (circuit QED) is extremely suitable for studying much stronger li
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Fitt, A. J., and P. Alexander. "Magnetic Field Strengths of Spiral Galaxies and the Far-Infrared/Radio Correlation." In Galactic and Intergalactic Magnetic Fields. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0569-6_75.

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Faraj, Sirwan, and Amin Al-Habaibeh. "Investigating the Utilisation of Waste Sand from Sand Casting Processes for Concrete Products for Environmental Sustainability." In Springer Proceedings in Energy. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30960-1_12.

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AbstractConcrete is one of the fundamental materials in the construction industry. Typically, concrete is composed of sand, cement, aggregate, and added water to the cement ratio. To enhance sustainability and reduce the negative effect on the environment from industrial waste, recycling waste material into the concrete mixture is becoming an area of research by substituting some of the concrete ingredients with some of the recycled waste material in order to reduce the amount of fine natural aggregate used in the construction industry, maximise the strength and minimise the overall weight of
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Tamuly, Reeturaj, D. Ravi Kumar, and S. Aravindan. "Optimization of Process Variables in Warm Extrusion of a Mg–Al–Zn Alloy by Numerical Simulation." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58006-2_7.

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AbstractMagnesium alloys are extensively used in various fields such as automobile, defense, and aerospace due to their high specific strength and good damping properties. Extrusion is one of the important metal forming processes that is used to process the cast alloy into various useful shapes at high production rates. It is also known to improve the workability and strength of the material. Due to these advantages, interest on the extrusion of magnesium alloys has significantly increased in the recent past. But due to poor formability at room temperature, extrusion of Mg alloys in the warm f
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Hu, Lingzhi, Hua Pan, and Samuel A. Wickline. "Fluorine (19F) MRI to Measure Renal Oxygen Tension and Blood Volume: Experimental Protocol." In Methods in Molecular Biology. Springer US, 2021. http://dx.doi.org/10.1007/978-1-0716-0978-1_31.

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AbstractFluorinated compounds feature favorable toxicity profile and can be used as a contrast agent for magnetic resonance imaging and spectroscopy. Fluorine nucleus from fluorinated compounds exhibit well-known advantages of being a high signal nucleus with a natural abundance of its stable isotope, a convenient gyromagnetic ratio close to that of protons, and a unique spectral signature with no detectable background at clinical field strengths. Perfluorocarbon core nanoparticles (PFC NP) are a class of clinically approved emulsion agents recently applied in vivo for ligand-targeted molecula
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Hao, Jiping, Xinghuang Wu, Weifeng Tian, Shenghui Li, and Rong Wang. "Experimental and Numerical Investigation of Weak-Axis Connected Steel Plate Shear Wall with Non-slotted and Partially Slotted Infill Plates." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_11.

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AbstractAll Components with H-shaped section are widely used in steel structures, in which the connection of beam section to column flange (i.e. weak-axis connection) is inevitable. In order to study the mechanical properties of weak-axis connected steel plate shear walls, a 1/3 scaled steel plate wall specimen was designed and subjected to a cyclic test to investigate the properties of stiffness, strength, ductility and energy dissipation. On the basis of this, the partially slotted steel plate shear wall was proposed. The FE model of the test specimen was developed and verified with the test
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Zak, Jan A., Jose M. Araya-Martinez, and Christian Weißenfels. "A Baseline Model for Nugget Diameter Prediction Based on Process Parameters for Aluminum Resistance Spot Welding." In ARENA2036. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-88831-1_10.

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Abstract Resistance spot welding is a widely used joining method in automotive manufacturing, known for its efficiency and reliability. With growing regulatory scrutiny on vehicles’ carbon footprint, the body-in-white faces higher weight requirements. Therefore, aluminum alloys, particularly 5xxx and 6xxx series aluminum, are increasingly favored over steel due to their strength-to-density ratio. Despite this shift, research on the resistance spot welding of aluminum in large-scale production remains limited compared to steel. Furthermore, with the advent of big data and industry 4.0, the deve
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Streszczenia konferencji na temat "Radio field strength"

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Tian, Yi, Gengchen Lv, Mingwei Li, et al. "Dual-Channel Millimeter Wave Field Strength Measurement System for High-Speed Maglev Train." In 2024 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT). IEEE, 2024. https://doi.org/10.1109/rfit60557.2024.10812390.

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Erickson, Christopher, Pranav Athalye, Milan M. Ilić, and Branislav M. Notaroš. "Design and Optimization of 4.7-Tesla RF Coils and Associated Circuits for Use in High-Field Strength and High-Larmor-Frequency Magnetic Resonance Imaging." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10906978.

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McElreath, James, Moble Benedict, and Nathan Tichenor. "Tip Vortex Measurements on a Cycloidal Rotor Blade at Ultralow Reynolds Numbers - Lichten Award Runner-Up Paper." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12680.

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This study provides the first in-depth analysis of the formation, strength, and convection of cycloidal rotor tip vortices. The blade force and PIV-based tip-vortex measurements were conducted for different blade aspect ratios and pitch kinematics in water at a chord Reynolds number of 18,000. Two phase-locked PIV configurations were utilized to investigate the flow field induced by the cyclorotor blade: (1) a laboratory-fixed field of view to enable investigation of vortex development at increasing vortex ages, and (2) a blade-fixed field of view to investigate the early development of the wi
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Hindman, D. L., H. L. Wishkoff, and D. J. Landini. "Corrosion of Ceramic Composite Heat Exchanger Materials in a Hazardous Waste Incinerator*." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93199.

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Abstract A ceramic composite based heat exchanger has been designed for use in high temperature, highly corrosive environments. A prototype unit is scheduled to be field tested in a hazardous waste incinerator. Prior to the field test, candidate composite materials were exposed to the incinerator flue gases for up to six months to determine their performance. Three of the composite material types tested were filament wound tubes containing alumina-zirconia fiber in an alumina matrix, a zirconia matrix, or an alumina matrix coated with zirconia. A fourth type consisted of particulate silicon ca
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Botteon, Andrea, Gianfranco Brunetti, and Daniele Dallacasa. "Constraining magnetic field strength in radio relics." In The many facets of extragalactic radio surveys: towards new scientific challenges. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.267.0046.

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Bahillo, Alfonso, Juan Blas, Patricia Fernandez, R. M. Lorenzo, and E. J. Abril. "Electromagnetic field strength assessment errors in flat roof vicinities." In 2008 IEEE Radio and Wireless Symposium. IEEE, 2008. http://dx.doi.org/10.1109/rws.2008.4463497.

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Rathgeber, R., and F. M. Landstorfer. "Land Cover Consideration in Mobile Radio Field Strength Prediction." In 21st European Microwave Conference, 1991. IEEE, 1991. http://dx.doi.org/10.1109/euma.1991.336510.

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Wanniarachchi, W. K. I. L., and C. P. Abayaratne. "A computational model for calculating the electric field strength of radio transmissions." In 2007 International Conference on Industrial and Information Systems. IEEE, 2007. http://dx.doi.org/10.1109/iciinfs.2007.4579171.

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Monteiro, Bruno, Gervasio P. S. Cavalcante, Herminio S. Gomes, Danileno M. Rosario, F. F. Lima, and H. A. Junior. "Evaluation of radio propagation parameters for field strength prediction using neural network." In 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/imoc.2007.4404399.

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Kuester, Daniel G., Duncan A. McGillivray, John Ladbury, et al. "Equivalent isotropic response as a surrogate for incident field strength." In 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2017. http://dx.doi.org/10.1109/apusncursinrsm.2017.8073074.

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Raporty organizacyjne na temat "Radio field strength"

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Qadri, Faisal, and Nishant Garg. Reducing Concrete Cure Times for Bridge Substructure Components and Box Culverts. Illinois Center for Transportation, 2023. http://dx.doi.org/10.36501/0197-9191/23-018.

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This report investigated pathways to reduce concrete curing time while maintaining mechanical and durability performance. Among several options such as admixtures, supplementary cementitious materials, and low water-to-cement ratio, researchers explored two mix designs in a field demonstration project. For Stage I of the project, a low water-to-cement ratio concrete mixture was used. For Stage II, the use of calcium-silicate-hydrate (C-S-H) based seeds was explored. Concrete laboratory mixtures containing C-S-H seeds X1 and X2 exhibited increased early-age strength and reduced permeability. Ba
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Wang, Yong-Yi. PR-350-154502-R02 Implications of Low Strain Hardening Steels on Design Construction and Maintenance. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011565.

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Much of the design, construction, and maintenance practices in the pipeline industry was established before the extensive use of modern control-rolled and microalloyed steels. These modern steels can behave differently from traditional hot-rolled and normalized steels. For instance, these modern steels tend to have a lower strain hardening capacity (higher Y/T ratio) than vintage hot-rolled and normalized steels. One of the observed trends is that modern steels could be qualified as higher grade due to the increase of yield strength (YS) while their ultimate tensile strength (UTS) remains at a
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Sirivat, Anuvat. Electrically controlled release of drugs from alginate hydrogels for transdermal drug delivery application. Chulalongkorn University, 2014. https://doi.org/10.58837/chula.res.2014.80.

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A drug-loaded conductive polymer/hydrogel blend, benzoic acid-loaded poly(3,4-ethylenedioxythiophene/alginate (BA-loaded PEDOT/Alg) hydrogel, was used as a carrier/matrix for an electrical stimuli transdermal drug delivery system (TDDS). The effects of crosslinking ratio, PEDOT particle size, and electric field strength on the release mechanism and the diffusion coefficient (D) of BA were examined by using a modified Franz-diffusion cell. The diffusion scaling exponent value of BA is close to 0.5 which refers to the diffusion controlled mechanism, or the Fickian diffusion as the BA release mec
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Crouch and Smith. L51976 Critical Assessment of the Remaining Strength of Corroded Pipe Using MFL Signals. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011272.

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This report covers experimental work done to investigate the use of magnetic flux leakage signals from in-line inspection for measuring biaxial stress in the pipe wall. Test results show that the ratio of lowfield signals to high-field signals correlates well with the difference between axial and hoop stress. If data from pressure transducers are available, the hoop component can be backed out, leaving a good estimate of axial stress. Also in the report is a detailed discussion of the development and validation of a corrosion assessment method, SAFEGTI, that uses the MFL data and produces an e
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Berney, Ernest, Jami Lynn Daugherty, and Lulu Edwards. Validation of the automatic dynamic cone penetrometer. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/44704.

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The U.S. military requires a rapid means of measuring subsurface soil strength for construction and repair of expeditionary pavement surfaces. Traditionally, a dynamic cone penetrometer (DCP) has served this purpose, providing strength with depth profiles in natural and prepared pavement surfaces. To improve upon this device, the Engineer Research and Development Center (ERDC) validated a new battery-powered automatic dynamic cone penetrometer (A-DCP) apparatus that automates the driving process by using a motor-driven hammering cap placed on top of a traditional DCP rod. The device improves u
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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato
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BACCELLI, François, Sébastien CANDEL, Guy PERRIN, and Jean-Loup PUGET. Large Satellite Constellations: Challenges and Impact. Académie des sciences, 2024. http://dx.doi.org/10.62686/3.

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The New Space Age (NewSpace) marks the advent of a new era in the use of space, characterized by the opening of space to new players, the use of new space technologies, new functionalities for satellites in orbit, and the development of satellite constellations, mainly in the fields of communications and Earth observation. These developments are underpinned by first-rate scientific and technological advances, as well as considerable public and private investment, in particular in the USA, China and, to a lesser extent, Europe. Fleets of small low- and medium-orbit satellites are replacing or c
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Pisani, William, Dane Wedgeworth, Michael Roth, John Newman, and Manoj Shukla. Exploration of two polymer nanocomposite structure-property relationships facilitated by molecular dynamics simulation and multiscale modeling. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46713.

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Polyamide 6 (PA6) is a semi-crystalline thermoplastic used in many engineering applications due to good strength, stiffness, mechanical damping, wear/abrasion resistance, and excellent performance-to-cost ratio. In this report, two structure-property relationships were explored. First, carbon nanotubes (CNT) and graphene (G) were used as reinforcement molecules in simulated and experimentally prepared PA6 matrices to improve the overall mechanical properties. Molecular dynamics (MD) simulations with INTERFACE and reactive INTERFACE force fields (IFF and IFF-R) were used to predict bulk and You
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He, Rui, Na (Luna) Lu, and Jan Olek. Development of In-Situ Sensing Method for the Monitoring of Water-Cement (w/c) Values and the Effectiveness of Curing Concrete. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317377.

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As the most widely used construction material, concrete is very durable and can provide long service life without extensive maintenance. The strength and durability of concrete are primarily influenced by the initial water-cement ratio value (w/c), and the curing condition during the hardening process also influences its performance. The w/c value is defined as the total mass of free water that can be consumed by hydration divided by the total mass of cement and any additional pozzolanic material such as fly ash, slag, silica fume. Once placed, field concrete pavements are routinely cured with
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Saadeh, Shadi, Unmona Aditi, Mohammad Javad Kazemi, Elham Fini, and Roger Khoudessian. Performance Testing of Asphalt Binder Modified with Amine-Impregnated Zeolite and Plastic in Hot Mix Asphalt to Reduce Carbon Footprint. Mineta Transportation Institute, 2025. https://doi.org/10.31979/mti.2025.2323.

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The rise in global temperatures, driven in part by significant transportation carbon emissions, necessitate sustainable solutions for infrastructure. Traditional asphalt binders and lime additives significantly contribute to carbon emissions, and conventional liquid amine-based antistrip agents, which are used to reduce moisture damage, lose efficacy over time. This study evaluates the performance of PG 64-16 Low Carbon binder, incorporating 10% post-consumer plastic and amine-impregnated zeolite (AIMZ) as a protective carrier for liquid amines. Researchers compare this low-carbon binder to co
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