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Journal articles on the topic 'Radiating channels'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Valery, Kostanovsky, Machalin Igor, Kozachuk Oksana, and Terentyeva Irina. "CONSTRUCTION OF A GENERALIZED PROBABILISTIC-PHYSICAL MODEL OF RELIABILITY OF A TWO-LEVEL ACTIVE PHASED ANTENNA ARRAY." Eastern-European Journal of Enterprise Technologies 3, no. 9(99) (2019): 31–40. https://doi.org/10.15587/1729-4061.2019.168525.

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A generalized probabilistic-physical model of reliability of a two-level active phased antenna array (APAA) of a multifunctional radar station was presented. When constructing the APAA physical model, definitions of failures of the radiating channel and the antenna array as a whole were formulated. Key parameters of the APAA were chosen: radiation power, gain in transmission and the top level of the near side lobes. This has made it possible to formulate generalized criteria of failure of the APAA operating in the modes of transmission and reception as well as determine the permissible number

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Sun, Shi Mei, and Wei Liu. "Simulation on the Cooling Effect of Proton Exchange Membrane Fuel Cell." Advanced Materials Research 1049-1050 (October 2014): 809–12. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.809.

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The cooling of proton exchange membranes fuel cell (PEMFC) is one of the crucial components in the heat management of a fuel cell. This paper presents three cooling channels of PEMFC: linear, serpentine and heat pipe. The cooling geometric models are proposed for the three cooling channels, respectively, and the corresponding temperature distributed diagrams are derived under steady state by SINDA/FLUINT. From the simulation, the linear cooling channel of PEMFC renders local overheating inside the cell under the same conditions, obviously. It is also observed that the serpentine cooling channe

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Key, Marcus M., Patrick N. Wyse Jackson, and Louis J. Vitiello. "Stream channel network analysis applied to colony-wide feeding structures in a Permian bryozoan from Greenland." Paleobiology 37, no. 2 (2011): 287–302. http://dx.doi.org/10.1666/10008.1.

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Colony-wide feeding currents are a common feature of many bryozoan colonies. These feeding currents are centered on excurrent macular chimneys that expel previously filtered water away from the colony surface. In some bryozoans these macular chimneys consist of a branching channel network that converges at a point in the center of the chimney. The bifurcating channels of the maculae are analogous to a stream channel network in a closed basin with centripetal drainage. The classical methods of stream channel network analysis from geomorphology are here used to quantitatively analyze the number

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Kuate, Alain François, Paulin Nembot Tchueguem, and Jean-François D. Essiben. "Design of a frequency reconfigurable rectangular patch antenna for 2.4 GHz Wi-Fi application." American Journal of Computing and Engineering 4, no. 2 (2021): 10–20. http://dx.doi.org/10.47672/ajce.886.

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Purpose: This paper presents the design and analysis of rectangular patch antenna that can be reconfigured in frequency for the three non-overlapping channels of the 2.4 GHz Wi-Fi. Methodology: To achieve this, a patch model in which four Pin diodes are introduced into the radiating structure, two operating in switching (ON / OFF) and two others kept blocked throughout operation has been proposed. By using as radiating element a copper hob placed on a substrate of the FR4_Epoxy type. The so-called CST Microwave Studio simulation software was used to simulate the design antenna. Fin

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Hughes, Kenneth G., and Jody M. Klymak. "Tidal Conversion and Dissipation at Steep Topography in a Channel Poleward of the Critical Latitude." Journal of Physical Oceanography 49, no. 5 (2019): 1269–91. http://dx.doi.org/10.1175/jpo-d-18-0132.1.

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Abstract In high-latitude fjords and channels in the Canadian Arctic Archipelago, walls support radiating internal tides as Kelvin waves. Such waves allow for significant barotropic to baroclinic tidal energy conversion, which is otherwise small or negligible when poleward of the critical latitude. This fundamentally three-dimensional system of a subinertial channel is investigated with a suite of numerical simulations in rectangular channels of varying width featuring idealized, isolated ridges. Even in channels as wide as 5 times the internal Rossby radius, tidal conversion can remain as hig

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TCHEREMISKINE, V. I., M. L. SENTIS, M. P. SABONNADIERE, and L. D. MIKHEEV. "A POWERFUL SOURCE OF BROADBAND VUV RADIATION BASED ON A MULTICHANNEL SLIDING DISCHARGE." Surface Review and Letters 09, no. 01 (2002): 645–49. http://dx.doi.org/10.1142/s0218625x02002786.

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A powerful source of broadband UV-VUV radiation is developed on the base of a multichannel sliding discharge. The discharge having a radiating surface of hundreds of cm 2 is initiated simultaneously along several dozens of parallel linear channels located close to each other. The design of the discharge electric circuit allows a remarkably fast energy deposition into plasma: up to 4 kJ during 1.5 μs. Absolute measurements of discharge VUV radiation are performed by the method of spectrally selective dynamic actinometry. The total photon flux produced by the source within the spectral range of

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Mani, M., S. N. Tiwari, and J. P. Drummond. "Investigation of chemically reacting and radiating supersonic flow in channels." Applied Scientific Research 50, no. 1 (1993): 43–68. http://dx.doi.org/10.1007/bf01086452.

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Sheikh, Sharif I. Mitu, W. Abu-Al-Saud, and A. B. Numan. "Directive Stacked Patch Antenna for UWB Applications." International Journal of Antennas and Propagation 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/389571.

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Directional ultrawideband (UWB) antennas are popular in wireless signal-tracking and body-area networks. This paper presents a stacked microstrip antenna with an ultrawide impedance bandwidth of 114%, implemented by introducing defects on the radiating patches and the ground plane. The compact (20×34 mm) antenna exhibits a directive radiation patterns for all frequencies of the 3–10.6 GHz band. The optimized reflection response and the radiation pattern are experimentally verified. The designed UWB antenna is used to maximize the received power of a software-defined radio (SDR) platform. For a

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Tsoy, Alexandr, Alexandr Granovskiy, Baurzhan Nurakhmetov, Dmitriy Koretskiy, Diana Tsoy-Davis, and Nikita Veselskiy. "Condensation heat removal due to the combined impact of natural convection and radiative cooling." Eastern-European Journal of Enterprise Technologies 1, no. 8 (121) (2023): 6–21. http://dx.doi.org/10.15587/1729-4061.2023.273607.

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The work examines the heat exchange characteristics of a condenser in which heat removal of the refrigerant condensation occurs due to natural convection and radiation cooling. The heat exchanger is designed to reduce energy costs for the removal of condensation heat. Unlike traditional air cooling condensers, it uses radiation cooling, a method of heat removal based on its transmission in the form of infrared radiation through the planet’s atmosphere into the surrounding outer space. A method for calculating the thickness of the radiating plate has been developed. To minimize material consump

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Alexandr, Tsoy, Granovskiy Alexandr, Nurakhmetov Baurzhan, Koretskiy Dmitriy, Tsoy-Davis Diana, and Veselskiy Nikita. "Condensation heat removal due to the combined impact of natural convection and radiative cooling." Eastern-European Journal of Enterprise Technologies 1, no. 8(121) (2023): 6–21. https://doi.org/10.15587/1729-4061.2023.273607.

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The work examines the heat exchange characteristics of a condenser in which heat removal of the refrigerant condensation occurs due to natural convection and radiation cooling. The heat exchanger is designed to reduce energy costs for the removal of condensation heat. Unlike traditional air cooling condensers, it uses radiation cooling, a method of heat removal based on its transmission in the form of infrared radiation through the planet’s atmosphere into the surrounding outer space. A method for calculating the thickness of the radiating plate has been developed. To minimize material c

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Pei, Haiqin, Liang Hong, and Jim Yang Lee. "Embedded Hydrophilic Nanogranules with Radiating Proton-Conducting Channels in a Hydrophobic Matrix." Langmuir 23, no. 9 (2007): 5077–84. http://dx.doi.org/10.1021/la0623937.

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Mordachev, V. I. "Assessment of the Contribution of Radiations of User Equipment to the Anthropogenic Electromagnetic Background Created by Mobile (Cellular) Communications." Doklady BGUIR 21, no. 5 (2023): 50–58. http://dx.doi.org/10.35596/1729-7648-2023-21-5-50-58.

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The declared increase in spatial density of user (terminal, peripheral, etc.) radiating equipment (UE) of mobile communications up to 0.1 UE/m2 in 4G (LTE) networks, up to 1.0 UE/m2 in 5G (NR) networks and up to 10 UE/m2 in promising 6G networks may cause an unacceptable increase in electromagnetic background and in corresponding forced risks to public health. The paper proposes a method for assessing the contribution of UE radiations to the level of anthropogenic electromagnetic background created by mobile communications. This method is based on the analysis of the electromagnetic loading on

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Xing, Yuan, Haowen Pan, Bin Xu, et al. "Optimal Wireless Information and Power Transfer Using Deep Q-Network." Wireless Power Transfer 2021 (May 15, 2021): 1–12. http://dx.doi.org/10.1155/2021/5513509.

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In this paper, a multiantenna wireless transmitter communicates with an information receiver while radiating RF energy to surrounding energy harvesters. The channel between the transceivers is known to the transmitter, but the channels between the transmitter and the energy harvesters are unknown to the transmitter. By designing its transmit covariance matrix, the transmitter fully charges the energy buffers of all energy harvesters in the shortest amount of time while maintaining the target information rate toward the receiver. At the beginning of each time slot, the transmitter determines th

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Alyosef, Ayham, Domenico Cimini, Lorenzo Luini, et al. "Improving atmospheric path attenuation estimates for radio propagation applications by microwave radiometric profiling." Atmospheric Measurement Techniques 14, no. 4 (2021): 2737–48. http://dx.doi.org/10.5194/amt-14-2737-2021.

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Abstract. Ground-based microwave radiometer (MWR) observations of downwelling brightness temperature (TB) are commonly used to estimate atmospheric attenuation at relative transparent channels for radio propagation and telecommunication purposes. The atmospheric attenuation is derived from TB by inverting the radiative transfer equation with a priori knowledge of the mean radiating temperature (TMR). TMR is usually estimated by either time-variant site climatology (e.g., monthly average computed from atmospheric thermodynamical profiles) or condition-variant estimation from surface meteorologi

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15

Sharawi, Mohammad S., Abdelmoniem T. Hassan, and Muhammad U. Khan. "Correlation coefficient calculations for MIMO antenna systems: a comparative study." International Journal of Microwave and Wireless Technologies 9, no. 10 (2017): 1991–2004. http://dx.doi.org/10.1017/s1759078717000903.

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The correlation coefficient (ρ) is an important metric for the evaluation of multiple-input–multiple-output (MIMO) antenna systems because it describes the relationship between the channels in a particular propagation environment. Highly correlated channels will degrade the MIMO system performance. Various methods to calculateρare analyzed in this work using three different types of antennas with different efficiencies and radiating properties. While the field-based method for findingρgives the most accurate results and should be used all the time. It is independent of antenna efficiency. The

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Yang, Wenhang, Chen Cao, Pujiang Huang, et al. "Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source." Sensors 24, no. 5 (2024): 1707. http://dx.doi.org/10.3390/s24051707.

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High-precision temperature control of large-area blackbodies has a pivotal role in temperature calibration and thermal imaging correction. Meanwhile, it is necessary to correct the temperature difference between the radiating (surface of use) and back surfaces (where the temperature sensor is installed) of the blackbody during the testing phase. Moreover, large-area blackbodies are usually composed of multiple temperature control channels, and manual correction in this scenario is error-prone and inefficient. At present, there is no method that can achieve temperature-automated calibration for

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GOMEZ, CHRISTOPHE. "LOSS OF RESOLUTION FOR THE TIME REVERSAL OF WAVES IN RANDOM UNDERWATER ACOUSTIC CHANNELS." Mathematical Models and Methods in Applied Sciences 23, no. 11 (2013): 2065–110. http://dx.doi.org/10.1142/s0218202513500267.

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In this paper we analyze a time reversal experiment in a random underwater acoustic channel. In this kind of waveguide with a semi-infinite cross-section a propagating field can be decomposed over three kinds of modes: the propagating modes, the radiating modes and the evanescent modes. Using an asymptotic analysis based on a separation of scales technique we derive the asymptotic form of the the coupled mode power equation for the propagating modes. This approximation is used to compute the transverse profile of the refocused field and show that random inhomogeneities inside the waveguide det

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18

Ivanov, Vladlen. "CONJUGATE HEAT EXCHANGE IN THE LAMINAR FLOW OF NON-NEWTONIAN FLUIDS IN CHANNELS WITH RADIATING EXTERNAL SURFACES." University News. North-Caucasian Region. Technical Sciences Series, no. 4 (December 2016): 57–60. http://dx.doi.org/10.17213/0321-2653-2016-4-57-60.

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19

Govea, Rosann M., Mary F. Barbe, and Geoffrey M. Bove. "Group IV nociceptors develop axonal chemical sensitivity during neuritis and following treatment of the sciatic nerve with vinblastine." Journal of Neurophysiology 118, no. 4 (2017): 2103–9. http://dx.doi.org/10.1152/jn.00395.2017.

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We have previously shown that nerve inflammation (neuritis) and transient vinblastine application lead to axonal mechanical sensitivity in nociceptors innervating deep structures. We also have shown that these treatments reduce axonal transport and have proposed that this leads to functional accumulation of mechanically sensitive channels in the affected part of the axons. Though informing the etiology of mechanically induced pain, axonal mechanical sensitivity does not address the common report of ongoing radiating pain during neuritis, which could be secondary to the provocation of axonal ch

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20

Bryakin, Ivan V., and Igor V. Bochkarev. "Hybrid Induction Sensing Method for Detection of Underground Cable Lines and Pipelines." Electrotechnical Systems and Complexes, no. 2(43) (June 28, 2019): 70–78. http://dx.doi.org/10.18503/2311-8318-2019-2(43)-70-78.

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The analysis of the principles of searchers construction was carried out. It was found that induction route methods based on measurements of secondary electromagnetic fields, which are created by currents induced in a cable by independent radiating systems using third-party power sources, have received the greatest use. For the implementation of these methods, radiating systems of various types are used, such as frame or vibrator antennas. When building locators, the mutual distribution of the receiving and transmitting coils is of particular importance. The research group considered options f

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Narytnik, T. N., V. G. Saiko, V. I. Korsun, N. M. Sivkova, and S. I. Semerey. "MULTIPOSITION TELECOMMUNICATION SYSTEM OF ELECTROMAGNETIC EMISSION INFLUENCE ON SATELLITE BROADBAND LINES OF RADIO COMMUNICATION." Visnyk Universytetu “Ukraina”, no. 1 (28) 2020 (2020): 75–89. http://dx.doi.org/10.36994/2707-4110-2020-1-28-07.

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The structure of construction of a multiposition system (BS) of electromagnetic radiation influence on satellite broadband radio channels, consisting of synchronously operating spatially spaced low-power transceivers N_ts and having a fully connected topology network (similar to B) . As a result, it is possible to concentrate the radiating power in a given direction. By increasing the base of the transmission system, when its dimensions become comparable to the distance to the object under study, the wave front is no longer planar and the radiating power can be concentrated not only in the dir

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Gu, Dezhen, Xiaoqing Yang, Piqiang Su, et al. "Microwave vortex-beam generator based on corrugated metal–insulator–metal ground supported spoof surface plasmon polaritons." Journal of Applied Physics 131, no. 10 (2022): 103105. http://dx.doi.org/10.1063/5.0080288.

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The vortex beam is an electromagnetic wave that carries orbital angular momentum (OAM). It has an infinite variety of orthogonal modes and provides a new method for increasing wireless communication channels and improving the resolution of radar imaging, therefore it has attracted more attention in recent years. In this paper, a vortex-beam generator is proposed, whose overall structure is made up of a series of circular radiation patches placed on a dielectric substrate and a ground plane, and the ground is composed of corrugated metal–insulator–metal (CMIM). The circular patches are radiatin

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23

W. A., Okuyade Ighoroje, and Irhiakuma Chris T. "MHD Thermally Radiating Flow through Two Parallel Vertical Plates Channel in the Presence of Chemical Reaction, Hall, Joule, and Cross- Diffusion Effects." WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER 19 (December 31, 2024): 133–49. https://doi.org/10.37394/232012.2024.19.14.

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MHD thermally radiating flow through two parallel vertical plate channels in the presence of chemical reaction, Hall, Joule, and cross-diffusion effects are examined. The fluid is assumed chemically reactive, electrically conducting, magnetically susceptible, viscous, incompressible, and Newtonian; the plates are porous, electrically conductive, and heated to a high-temperature regime to generate thermal rays. The flow system is highly interactive such that cross/double diffusion effects are present. The governing partial differential equations are solved by the method of Modified Homotopy Per

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Zhdankin, Vladimir, Matthew W. Kunz, and Dmitri A. Uzdensky. "Synchrotron Firehose Instability." Astrophysical Journal 944, no. 1 (2023): 24. http://dx.doi.org/10.3847/1538-4357/acaf54.

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Abstract We demonstrate using linear theory and particle-in-cell (PIC) simulations that a synchrotron-cooling collisionless plasma acquires pressure anisotropy and, if the plasma beta is sufficiently high, becomes unstable to the firehose instability, in a process that we dub the synchrotron firehose instability (SFHI). The SFHI channels free energy from the pressure anisotropy of the radiating, relativistic electrons (and/or positrons) into small-amplitude, kinetic-scale, magnetic-field fluctuations, which pitch-angle scatter the particles and bring the plasma to a near-thermal state of margi

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Блохин, С. А., Н. А. Малеев, М. А. Бобров, А. Г. Кузьменков, А. В. Сахаров та В. М. Устинов. "Высокоскоростные полупроводниковые вертикально-излучающие лазеры для оптических систем передачи данных (Обзор)". Письма в журнал технической физики 44, № 1 (2018): 7. http://dx.doi.org/10.21883/pjtf.2018.01.45428.17057.

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AbstractThe main problems of providing a high-speed operation semiconductor lasers with a vertical microcavity (so-called “vertical-cavity surface-emitting lasers”) under amplitude modulation and ways to solve them have been considered. The influence of the internal properties of the radiating active region and the electrical parasitic elements of the equivalent circuit of lasers are discussed. An overview of approaches that lead to an increase of the cutoff parasitic frequency, an increase of the differential gain of the active region, the possibility of the management of mode emission compos

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Wade, Nicholas J., and Charles M. M. De Weert. "Aftereffects in Binocular Rivalry." Perception 15, no. 4 (1986): 419–34. http://dx.doi.org/10.1068/p150419.

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Five experiments are reported in which the aftereffect paradigm was applied to binocular rivalry. In the first three experiments rivalry was between a vertical grating presented to the left eye and a horizontal grating presented to the right eye. In the fourth experiment the rivalry stimuli consisted of a rotating sectored disc presented to the left eye and a static concentric circular pattern presented to the right. In experiment 5 rivalry was between static radiating and circular patterns. The predominance durations were systematically influenced by direct (same eye) and indirect (interocula

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Kovalenko, A. I., S. V. Titov, E. V. Titova, and O. S. Cherna. "Estimation of requirements to signal parameters at V-shaped frequency distribution in mathematical model of multi-position transmitter system." Radiotekhnika, no. 209 (June 24, 2022): 178–84. http://dx.doi.org/10.30837/rt.2022.2.209.17.

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This paper is a brief review of methods for electromagnetic radiation focusing using a multi-position system of radiators based on mutually consistent spatial-amplitude-phase-frequency control of radiated signals and limitations of their potentialities arising from various random fluctuations of signals and antenna parameters. The statistical study of influence of different random and deterministic variations of electrical and design parameters of the antennas, control systems of the radiated signals with V-shaped frequency distribution over the aperture of a multi-position radiating system on

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Tsysar, S. A., P. B. Rosnitskiy, S. A. Asfandiyarov, S. A. Petrosyan, V. A. Khokhlova, and O. A. Sapozhnikov. "Phase Correction of the Channels of a Fully Populated Randomized Multielement Therapeutic Array Using the Acoustic Holography Method." Acoustical Physics 70, no. 1 (2024): 82–89. http://dx.doi.org/10.1134/s1063771023601280.

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Abstract The acoustic holography method was used to characterize a therapeutic focused fully populated 256-element ultrasonic transducer array. Elements of the array with the shape of equal area polygons are densely arranged in an irregular pattern on a spherically concave surface with a radius of curvature of 150 mm and a diameter of 200 mm. The array has a central frequency of 1.2 MHz and is designed to operate in water. The performance of individual array elements was studied based on the holographically reconstructed normal velocity distribution over the array surface. It was shown that wi

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Atanasova, Gabriela Lachezarova, Blagovest Nikolaev Atanasov, and Nikolay Todorov Atanasov. "Fully Textile Dual-Band Logo Antenna for IoT Wearable Devices." Sensors 22, no. 12 (2022): 4516. http://dx.doi.org/10.3390/s22124516.

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In recent years, the interest in the Internet of Things (IoT) has been growing because this technology bridges the gap between the physical and virtual world, by connecting different objects and people through communication networks, in order to improve the quality of life. New IoT wearable devices require new types of antennas with unique shapes, made on unconventional substrates, which can be unobtrusively integrated into clothes and accessories. In this paper, we propose a fully textile dual-band logo antenna integrated with a reflector for application in IoT wearable devices. The proposed

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Doonan, J. H., C. W. Lloyd, and J. G. Duckett. "Anti-tubulin antibodies locate the blepharoplast during spermatogenesis in the fern Platyzoma microphyllum R.Br.: a correlated immunofluorescence and electron-microscopic study." Journal of Cell Science 81, no. 1 (1986): 243–65. http://dx.doi.org/10.1242/jcs.81.1.243.

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The discovery that the monoclonal anti-tubulin antibody YOL 1/34 recognizes a microtubule organizing centre, the blepharoplast (which arises de novo during the latter stages of spermatogenesis in the fern, Platyzoma microphyllum), has enabled us to follow it and associated microtubules throughout most of its ontogeny. By correlating electron-microscopic and immunofluorescence observations, YOL 1/34 is seen to stain the blepharoplast uniformly at a time when no microtubules are present within the organelle. Later, staining becomes intense at the surface, concomitant with the re-location of cyli

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Shuang Wu, Shuang Wu. "Research on Moutai Cross-border Product Marketing Optimization Strategies: Taking Moutai Ice Cream as an Example." Northeast Asian Arts and Cultural Management Association 1, no. 1 (2024): 29–38. http://dx.doi.org/10.69887/jnaacm.2024.1.1.29.

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Purpose - On May 19, 2022, Moutai and Mengniu reached a strategic cooperation, announced the opening of the country’s first Moutai ice cream flagship store, and launched Moutai ice cream in various flavors including original, vanilla and other flavors, achieving growth against the trend. Moutai has entered the high-end ice cream market by engaging in strategic collaborations with Mengniu. However, in the marketing process, since Moutai ice cream is not a traditional alcoholic product, Moutai needs to explore new marketing methods. Design/Methodology/Approach - This article utilizes the 4P theo

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Dolgikh, Pavel P. "Role of the spectral characteristics of radiating sources in the formation of lettuce yield in hydroponics cultivation." Agricultural Engineering, no. 5 (2023): 62–67. http://dx.doi.org/10.26897/2687-1149-2023-5-62-67.

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Growing plants indoors in the controlled environment involves the use of LED systems with an adjustable spectrum and intensity with manual or remote control. The aim of the study was to determine the role of different LED emission spectra in growth, development, and yield of lettuce cultivated hydroponically to develop requirements for the LED irradiator design. Studies were carried out in a growth chamber with periodic flooding hydroponics when irradiating lettuce plants of Kuk, Afitsion, and Khrizolit varieties under multispectral irradiators. The first irradiator has a radiation spectrum co

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Choi, Woorak, Chang-Goo Kim, and Aeree Chung. "Ram Pressure Stripping of the Multiphase ISM: A Detailed View from TIGRESS Simulations." Astrophysical Journal 936, no. 2 (2022): 133. http://dx.doi.org/10.3847/1538-4357/ac82ba.

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Abstract Ram pressure stripping (RPS) is a process that removes the interstellar medium (ISM) quickly, playing a vital role in galaxy evolution. Previous RPS studies have treated the ISM as single-phase or lack the resolution and physical processes to properly capture the full multiphase ISM. To improve this simplification, we introduce an inflowing, hot intracluster medium (ICM) into a self-consistently modeled ISM in a local patch of star-forming galactic disks using the TIGRESS framework. Our simulations reveal that the workings of RPS are not only direct acceleration of the ISM by ICM ram

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T S, Remesh Chandran, Manu R, and Sainath Pillai R. "A Case study on Efficacy of Nasya karma with Karpasasthyadi thailam in the Management of Kaphavrutha Vata w.s.r Manyasthamba." International Journal of Ayurvedic Medicine 12, no. 1 (2021): 171–76. http://dx.doi.org/10.47552/ijam.v12i1.1775.

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Manyasthamba (Cervical Spondylosis) is one among the Eighty Nanathmaja Vata Vyadhi’s. Due to the Nidanas (Etiology) like sleeping during day time, sitting and standing on irregular postures, constantly gazing upwards.Avarana is one of the pathological processes of Vata vitiation. Avarana is the disturbed movement of Vata due to obstruction by other factors in the body. Vata being aggravated, gets Avrutha by Kapha. Kaphavrutha Vata takes Ashraya (seat)in the Sira (arteries) and Snayu (Nerves) of Manya Pradesha (Nape of the neck) and produces Lakshanas ( Symptoms) like Sheetata ,Shopha (Swelling

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Khrebtov, Artem I., Vladimir V. Danilov, Anastasia S. Kulagina, et al. "Influence of TOPO and TOPO-CdSe/ZnS Quantum Dots on Luminescence Photodynamics of InP/InAsP/InPHeterostructure Nanowires." Nanomaterials 11, no. 3 (2021): 640. http://dx.doi.org/10.3390/nano11030640.

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The passivation influence by ligands coverage with trioctylphosphine oxide (TOPO) and TOPO including colloidal CdSe/ZnS quantum dots (QDs) on optical properties of the semiconductor heterostructure, namely an array of InP nanowires (NWs) with InAsP nanoinsertion grown by Au-assisted molecular beam epitaxy on Si (111) substrates, was investigated. A significant dependence of the photoluminescence (PL) dynamics of the InAsP insertions on the ligand type was shown, which was associated with the changes in the excitation translation channels in the heterostructure. This change was caused by a diff

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Yang, Qian-Kun, Jia-Xiang Xiong, and Zhong-Xiang Yao. "Neuron-NG2 Cell Synapses: Novel Functions for Regulating NG2 Cell Proliferation and Differentiation." BioMed Research International 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/402843.

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NG2 cells are a population of CNS cells that are distinct from neurons, mature oligodendrocytes, astrocytes, and microglia. These cells can be identified by their NG2 proteoglycan expression. NG2 cells have a highly branched morphology, with abundant processes radiating from the cell body, and express a complex set of voltage-gated channels, AMPA/kainate, and GABA receptors. Neurons notably form classical and nonclassical synapses with NG2 cells, which have varied characteristics and functions. Neuron-NG2 cell synapses could fine-tune NG2 cell activities, including the NG2 cell cycle, differen

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Kochin, L. B., S. Yu Strakhov, and S. A. Matveev. "FEATURES OF THE WIRELESS ENERGY TRANSFER’S CHANNEL IN A DYNAMIC MODE." Issues of radio electronics, no. 7 (July 20, 2018): 79–88. http://dx.doi.org/10.21778/2218-5453-2018-7-79-88.

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Work is devoted to wireless energy transfer to the removed devices by means of laser radiation. This problem is actual in some practical applications. The dynamic mode of the laser wireless energy transfer's channel is considered. The mathematical model is offered. Influence of terminal loading on dynamic processes in the channel is investigated. The factors increased of energy transfer channel's efficiency are analyzed. Parameters of lenses and beam expanders, accuracy of optical component's installation, uniformity of a photocell's light spot are investigated. It is shown, that in a pulse mo

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Krishnamoorthy, Gautham, and Lucky Mulenga. "Impact of Radiative Losses on Flame Acceleration and Deflagration to Detonation Transition of Lean Hydrogen-Air Mixtures in a Macro-Channel with Obstacles." Fluids 3, no. 4 (2018): 104. http://dx.doi.org/10.3390/fluids3040104.

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While there has been some recognition regarding the impact of thermal boundary conditions (adiabatic versus isothermal) on premixed flame propagation mechanisms in micro-channels (hydraulic diameters <10 mm), their impact in macro-channels has often been overlooked due to small surface-area-to-volume ratios of the propagating combustion wave. Further, the impact of radiative losses has also been neglected due to its anticipated insignificance based on scaling analysis and the high computational cost associated with resolving it’s spatial, temporal, directional, and wavelength dependencies.

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Kudriashov, V., D. Lytovchenko, V. Voinov, L. Khrol, and V. Kutsenko. "FIRING EFFICIENCY OF ANTI-AIRCRAFT MISSILE COMPLEX “STRILA-10” IN TARGET DETECTION THROUGH THE OPTICAL VISOR AND AUTOMATED TARGET POINTER." Наукові праці Державного науково-дослідного інституту випробувань і сертифікації озброєння та військової техніки 18, no. 4 (2023): 41–48. http://dx.doi.org/10.37701/dndivsovt.18.2023.06.

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When preparing for and conducting combat operations of the “SA-13 Gopher” anti-aircraft missile system, commanders and combat personnel of the system must know the missile firing efficiency indicators [1–4]. As an indicator of missile firing efficiency, the probability of hitting a target with one missile is usually used. Massive homing is carried out via the contrast channel or the infrared channel of the missile homing head. Under various conditions of use, it is necessary to evaluate the detection ranges that are realised and the probability of timely target detection, launch range and miss

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Khan, Muhammad Irshad, Muhammad Irfan Khattak, Gunawan Witjaksono, et al. "Experimental Investigation of a Planar Antenna with Band Rejection Features for Ultra-Wide Band (UWB) Wireless Networks." International Journal of Antennas and Propagation 2019 (June 2, 2019): 1–11. http://dx.doi.org/10.1155/2019/2164716.

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The Federal Communication Commission (FCC) has authorized the use of unlicensed ultra-wide band (UWB) spectrum in the frequency range from 3.1 to 10.6 GHz for a variety of short-range applications, including wireless monitors and printers, camcorders, radar imaging, and personal area networks (PANS). However, the interference between coexisting narrowband channels and UWB signals that share the same spectrum should be avoided by designing UWB antennas with band notch characteristics. This work presents a printed monopole antenna (PMA) with slots of different shapes etched in the radiating elem

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Radzivilov, H., M. Ilyinov, and P. Khomenko. "Features computation diagram of annular direction antenna arrays what made on half-wave vibrators located above cylindrical surface." Communication, informatization and cybersecurity systems and technologies, no. 5 (June 1, 2024): 130–37. http://dx.doi.org/10.58254/viti.5.2024.12.130.

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The use of antenna-feeder devices, especially installed on moving objects, indicates the need to modernize and develop new type antenna devices to increase the efficiency of the radio communication system in conditions of active radio electronic suppression. One of the options for providing interference protection in communication channels with moving objects is the use of narrowly directed Smart antennas with a controlled directional pattern. Smart antennas, which are also called intelligent antennas, are one of the varieties of phased antenna arrays. Smart antennas use a set of radiating ele

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Weng, Chensi, Lei Liu, Taichang Gao, et al. "Multi-Channel Regression Inversion Method for Passive Remote Sensing of Ice Water Path in the Terahertz Band." Atmosphere 10, no. 8 (2019): 437. http://dx.doi.org/10.3390/atmos10080437.

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Retrieval of ice cloud properties using passive terahertz wave radiometer from space has gained increasing attention currently. A multi-channel regression inversion method for passive remote sensing of ice water path (IWP) in the terahertz band is presented. The characteristics of the upward terahertz radiation in the clear-sky and cloudy-sky are first analyzed using the Atmospheric Radiative Transfer Simulator (ARTS). Nine representative center frequencies with different offsets are selected to study the changes of terahertz radiation caused by microphysical parameters of ice clouds. Then, mu

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Efimov, A. G., S. A. Korneev, V. S. Matveev, and V. V. Chistyukhin. "Designing Multi Beam Receiving and Transmitting Aperture LEO Space Communication Systems." Proceedings of Universities. Electronics 26, no. 1 (2021): 64–73. http://dx.doi.org/10.24151/1561-5405-2021-26-1-64-73.

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In designing the receiving-transmitting active phased antenna array (APAA) an important problem is an achievement of the level of maximum outcome between the receiving and transmitting channels. In the work, the concept of building multi-beam receiving-transmitting antenna systems based on APAA has been considered. The criteria for selecting the type of emitter for an S-band antenna with the specified parameters have been presented. It has been shown that the use of a turnstile emitter based on the printing technology can reduce the complexity of manufacturing without compromising the technica

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Bal, Amrita, Jeffery W. Baur, Darren J. Hartl, et al. "Multi-Layer and Conformally Integrated Structurally Embedded Vascular Antenna (SEVA) Arrays." Sensors 21, no. 5 (2021): 1764. http://dx.doi.org/10.3390/s21051764.

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This work presents the design and fabrication of two multi-element structurally embedded vascular antennas (SEVAs). These are achieved through advances in additively manufactured sacrificial materials and demonstrate the ability to embed vascular microchannels in both planar and complex-curved epoxy-filled quartz fiber structural composite panels. Frequency-reconfigurable antennas are formed by these structures through the pressure-driven transport of liquid metal through the embedded microchannels. The planar multi-layer topology examines the ability to fabricate two co-located radiating stru

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Ikram, Muhammad. "5G/B5G Internet of Things MIMO Antenna Design." Signals 3, no. 1 (2022): 29–37. http://dx.doi.org/10.3390/signals3010003.

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The current and future wireless communication systems, WiFi, fourth generation (4G), fifth generation (5G), Beyond5G, and sixth generation (6G), are mixtures of many frequency spectrums. Thus, multi-functional common or shared aperture antenna modules, which operate at multiband frequency spectrums, are very desirable. This paper presents a multiple-input and multiple-output (MIMO) antenna design for the 5G/B5G Internet of Things (IoT). The proposed MIMO antenna is designed to operate at multiple bands, i.e., at 3.5 GHz, 3.6 GHz, and 3.7 GHz microwave Sub-6 GHz and 28 GHz mm-wave bands, by emp

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Lee, Sung Young, Jin Ho Kim, Ji Hyun Chang, et al. "Color Texture Analysis as a Tool for Quantitative Evaluation of Radiation-Induced Skin Injuries." Journal of Radiation Protection and Research 48, no. 3 (2023): 144–52. http://dx.doi.org/10.14407/jrpr.2023.00220.

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Background: Color texture analysis was applied as a tool for quantitative evaluation of radiation-induced skin injuries.Materials and Methods: We prospectively selected 20 breast cancer patients who underwent whole-breast radiotherapy after breast-conserving surgery. Color images of skin surfaces for irradiated breasts were obtained by using a mobile skin analyzer. The first skin measurement was performed before the first fraction of radiotherapy, and the subsequent measurement was conducted approximately 10 days after the completion of the entire series of radiotherapy sessions. For compariso

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Ventress, Lucy J., Gregory McGarragh, Elisa Carboni, Andrew J. Smith, and Roy G. Grainger. "Retrieval of ash properties from IASI measurements." Atmospheric Measurement Techniques 9, no. 11 (2016): 5407–22. http://dx.doi.org/10.5194/amt-9-5407-2016.

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Abstract. A new optimal estimation algorithm for the retrieval of volcanic ash properties has been developed for use with the Infrared Atmospheric Sounding Interferometer (IASI). The retrieval method uses the wave number range 680–1200 cm−1, which contains window channels, the CO2 ν2 band (used for the height retrieval), and the O3 ν3 band.Assuming a single infinitely (geometrically) thin ash plume and combining this with the output from the radiative transfer model RTTOV, the retrieval algorithm produces the most probable values for the ash optical depth (AOD), particle effective radius, plum

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Chung, Eui-Seok, and Brian J. Soden. "Investigating the Influence of Carbon Dioxide and the Stratosphere on the Long-Term Tropospheric Temperature Monitoring from HIRS." Journal of Applied Meteorology and Climatology 49, no. 9 (2010): 1927–37. http://dx.doi.org/10.1175/2010jamc2486.1.

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Abstract Contrary to a midtropospheric warming trend detected from Microwave Sounding Unit (MSU) measurements, High-Resolution Infrared Radiation Sounder (HIRS) temperature (15 μm) channels, sensitive to the thermal emission from the troposphere, produce distinct cooling trends for the period 1980–99. This apparent discrepancy in the tropospheric temperature trend is investigated through radiative transfer simulations using Geophysical Fluid Dynamics Laboratory climate model output and the profiles of the standard model atmospheres. Radiative simulations with time-invariant carbon dioxide conc

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Gaurav, S., and P. Jindal. "RADIATIVE TRANSFER MODEL SIMULATIONS TO DETERMINE THE NIGHT TIME FOG DETECTION THRESHOLD." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-5 (November 19, 2018): 511–17. http://dx.doi.org/10.5194/isprs-archives-xlii-5-511-2018.

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<p><strong>Abstract.</strong> Every winter the Indo-Gangetic plains (IGP) of northern India are severely impacted both socially and economically by fog. For night time fog detection, visible imagery cannot be used. Also, as emissions from ground and fog is almost similar in thermal infrared (TIR, 10.8<span class="thinspace"></span>&amp;mu;m) channel, TIR channel cannot help in identifying fog. However, emission in middle infrared (MIR, 3.9<span class="thinspace"></span>&amp;mu;m) channel is less than emission in TIR channel over foggy area. The

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Wang, H., R. T. Pinker, P. Minnis, and M. M. Khaiyer. "Experiments with Cloud Properties: Impact on Surface Radiative Fluxes." Journal of Atmospheric and Oceanic Technology 25, no. 6 (2008): 1034–40. http://dx.doi.org/10.1175/2007jtecho546.1.

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Abstract Solar radiation reaching the earth’s surface provides the primary forcing of the climate system, and thus, information on this parameter is needed at a global scale. Several satellite-based estimates of surface radiative fluxes are available, but they differ from each other in many aspects. The focus of this study is to highlight one aspect of such differences, namely, the way satellite-observed radiances are used to derive information on cloud optical properties and the impact this has on derived parameters such as surface radiative fluxes. Frequently, satellite visible radiance in a

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