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"In hexagonal CdBr_2, the coating of amorphous Ga_3S_3 onto CdBr_2 improves the crystallite size and minimizes the microstrain, defect density, and stacking faults. " Depositing Ga_2S_3 onto CdBr_2 improved the light absorbability of Ga_2S_3 by more than 120 times. Insertion of Au nanosheets as spacers between the Ga_2S_3 and CdBr_2 layers of the CAG structure's energy band gap was significantly engineered by the CAG structure's energy band gap. The microwave cutoff frequency at the notch frequency of the band filters has been found to be suitable for the 5G mobile technologies.
Source link: https://doi.org/10.1007/s11664-022-09616-5
"First, a suggested PDA with a pair of the microstrip dipoles excited by an T-shaped microstrip feedline is used to extend the coverage in the measured range of 5. 35 to 5. 6 GHz. The final result for the PDA with the 3 u00d7 3 Giuseppe Peano AMC array with second iteration shows a u2212 10 dB measured data bandwidth from 4. 50 to 7. 20 GHz for WLAN/ WiMAX and 5G applications. Compare the PDA with AMC to the PDA without AMC shows a size reduction of 35%, increased gain up to 8 dBi, and excellent impedance matching with uni-directional radiation patterns. "In addition, Giuseppe Peano's second iteration fractal patch is installed in a standardized way, enabling it to operate at 6. 10 GHz with a maximum AMC bandwidth of 5. 15u20137. 10 GHz. ".
Source link: https://doi.org/10.1007/s11276-022-02950-w
"The introduction of wireless communication in millimeter wave spectrum is becoming more mainstream in human life to keep up with the immediate need for high throughput and reliable transmission. " In this research paper, a new miniaturized dual-wideband MIMO antenna has been suggested and specifically tested for millimeter-wave 5G applications. Four identical elements orthogonally attached to the low-loss RTRogers Duroid 5880 substrate with total area of 14 mm. 3. In addition, the MIMO antenna's diversity results are also investigated in terms of several key measurements, which are all highly within the agreed practical thresholds. The envelope correlation coefficient is less than 0. 0005, the diversity gain exceeds 9. 99 dB, the channel capacity loss is no longer than 0. 05 bits/s/Hz, and high channel capacity reaches 22 bits/s/Hz," the channel correlation coefficient exceeds 9. 99 dB, the diversity increase exceeds 9. 99 dB, the total active reflection coefficient is less than 0. 05 percent exceeds 9. 99 dB, the channel capacity loss exceeds 0. 05 percent is less than 0. 05 despite the channel capacity exceeds/Hz.
Source link: https://doi.org/10.1007/s10470-022-02045-8
"The recommended MIMO prototype has been developed and built on a low loss Rogers RT5880 substrate with a miniature dimension of 1. 05 bb. u03bb, u00d7 0. 02 bb, and its results are evaluated using a suggested 10 00d7 10 array of a square enclosed circular resonators embedded within the same substrate material. " Compared to older MIMO antennas with an impressive average total gain of 82% in the 5G sub-6 GHz bandwagon, the suggested 4-port MIMO antenna has a high real gain of 8. 3 dBi and is in good agreement with measured results. Moreover, the recently upgraded MIMO antenna demonstrates remarkable diversity in terms of envelope correlation coefficient less than 0. 004 in respect of envelope correlation coefficient less than 0. 004 in comparison to envelope correlation coefficient less than 0. 004, which is a significant difference between MIMO components. "However, the enhanced MS-inspired MIMO antenna demonstrates its applicability for 5G sub-6 GHz communications networks. ".
Source link: https://doi.org/10.1038/s41598-022-13522-5
"By combining complementary-split-resonators metamaterial to the ground plane, the three directional radiation beam and wideband response of the proposed antenna are made. " Integration of these components is turning the back lobe into two separate working main lobes. The antenna's radiator is a balanced microstrip line fed by a coplanar microstrip feed. At the center frequency of 28 GHz, the antenna has a maximum gain of 18. 5 percent with a real gain of more than 7 dBi in the entire operating band.
Source link: https://doi.org/10.1007/s40998-022-00486-5
Methods Hospital in Shanghai, 30 males and 106 females, who underwent a 5G-based telerobotic thyroid U. S. examination by a tele-doctor at Shanghai Tenth People's Hospital and a conventional thyroid U. S. examination at Chongming Second People's Hospital, 84 kilometers away, from September 2020 to March 2021, the prospectively reviewed results from September 2020 to March 2021. The average duration of the 5G-based telerobotic U. S. examination was similar to that of a conventional U. S. examination. The image quality of telerobotic U. S. images correlated well with that of conventional U. S. telerobotic US. There was no significant difference between two types of U. S. examination methods for the diameter determination of the thyroid, cervical lymph nodes, and thyroid nodules. By telerobotic US, 124 thyroid nodules were detected by telerobotic US, and 127 thyroid nodules were identified by conventional US. Patients accepted the telerobotic US, 85 percent of patients supported the telerobotic US, and 87 percent were willing to pay extra for the telerobotic US.
Source link: https://doi.org/10.1007/s12020-022-03011-0
Cloud-based mobile ad hoc networks with cloud are a new model that incorporates many real-world applications. We recommend a new framework for shielding the network from attackers in this paper. TA-IDPS is a web-based cloud service layer that provides a MANET, a cloudlet, and a cloud service layer. If the cluster head receives data packets from a source node, they are classified as normal, malicious, and suspicious by a deep belief network. Cloudlets are used to aggregate packets from the CH and verify their legitimacy so that they can be routed to the cloud service layer in the cloudlet layer. Utilizing Awads' information entropy, each cloudlet is provided with a peek monitor for classifying suspicious packets as both malicious and normal. In terms of all measurements, the evaluation results showed that the new TA-IDPS system outperformed the previous methods in terms of all metrics.
Source link: https://doi.org/10.1007/s10207-020-00531-6
"The application of Internet technologies to the agricultural industry chain has a wide potential for growth, and the LoT and the big data have been a key pillar of smart agriculture development. " The implementation of Internet technology improves the degree of presence and transparency of the agricultural supply chain, reduces production chain transparency, and enhances supply chain coordination. Technology 5g LoT enables new growth opportunities for traditional supply chain management by research, design, and rollout of the technology 5g LoT. The results of the survey show that, in the case of the use of the 5g LoT, the supply chain may have more insight into the development of an intelligent supply chain, and the percentage has risen by around 25%. ".
Source link: https://doi.org/10.1007/s10586-021-03487-x
"Millimetre-wave ultra-dense high capacity networks are a vital component of future 5G and 6G cellular networks, as they are providing optimal network coverage and speed to the end users. " In these situations, however, different types of users coexist, causing the heterogeneous network to be uneven in terms of allocation of resources to various users based on their needs. Hence, a system is needed for efficient spectrum sharing and overall system fairness. Both user groups using the User Admission Control system have been restricted, and a fair balance of the Grade-of-Service is further developed. To give a greater chance of reaching various users with limited resource choices, the enhanced method limits access to various channel resources for users with complete freedom. The blocking of shadowed users has drastically decreased from 7% to 4. 5 percent at high traffic rates, according to the analytical model.
Source link: https://doi.org/10.1007/s11235-022-00893-3
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