-
21
Propagation Model in Indoor and Outdoor for the LTE Communications
Published 2019-01-01Get full text
Article -
22
OCT-Precoding Combined with LDPC-Coding Scheme for 128 QAM MB-OFDM UWBoF System
Published 2020-01-01“…Besides, the constellation distribution was more convergent and uniform.…”
Get full text
Article -
23
Structural, Electronic, Lattice Dynamic, and Elastic Properties of SnTiO3 and PbTiO3 Using Density Functional Theory
Published 2019-01-01“…In addition, Debye temperature and longitudinal and transversal sound velocities are predicted from elastic constants. The electronic band structure and density of states of both compounds are obtained and compared with the available experimental as well as theoretical data. …”
Get full text
Article -
24
Prediction and Analysis of Abnormal Gas Emission Law in Low-Gas Tunnel Based on K-Line Diagram
Published 2020-01-01“…The results show that the K-line diagram can reflect the changing trend of gas concentration in real time accurately and show the change law of gas concentration during different construction processes; the moving average (MA) of the K-line diagram can accurately reflect the time of abnormal gas emission, the moving average convergence divergence (MACD) index can reflect the upward or downward power and trend of gas, and the Bollinger Band (BOLL) index can reflect the fluctuation range of gas concentration. …”
Get full text
Article -
25
Multilayer all-polymer metasurface stacked on optical fiber via sequential micro-punching process
Published 2023-02-01Get full text
Article -
26
Investigations on Shaped Mirror Systems in Quasi-Optical Mode Converters Based on Irradiance Moments Method
Published 2016-01-01“…The double shaped mirrors correcting amplitude and phase simultaneously are generated by a single incidence irradiance sampling data and known ideal output FGB taking advantage of linear moment matching technique and Fresnel diffraction theory, which can be applied to a wide frequency range especially significant for terahertz band. The numerical coding procedure of creating double correcting mirrors and its fast convergence speed are discussed at 325 GHz. …”
Get full text
Article -
27
-
28
-
29
An effective feature selection approach based on hybrid Grey Wolf Optimizer and Genetic Algorithm for hyperspectral image
Published 2025-01-01“…The innovation of GWOGA lies in three core strategies: (1) chaotic map and Opposition-Based Learning (OBL) for uniformly distributed population initialization, enhancing diversity and mitigating premature convergence; (2) elite learning strategy to prioritize high-ranking solutions, strengthening the search hierarchy and efficiency; and (3) a hybrid optimization mechanism where GWO ensures rapid early-stage convergence, while GA refines global search in later stages to escape local optima. …”
Get full text
Article -
30
Vajravārāhī in Khara Khoto and Prajñāpāramitā in East Java: Connected by Pearl Ornaments
Published 2025-01-01“…A thangka of the goddess Vajravārāhī found in Khara Khoto, dated to the late 12th century, shows the bodhisattva decorated with a pearl-chain girdle and upper-arm bands. This form of pearl-chain jewellery, which appears on Vajravārāhī and other Sino-Tibetan-style bodhisattvas, also appears on three stone statues of the goddess Prajñāpāramitā in East Java, all of which depict a near identical use of this pearl-chain ornamentation, as well as on a statue of Prajñāpāramitā at the Muara Jambi Buddhist site in Sumatra. …”
Get full text
Article -
31
Relationship Between a Heavy Rainfall and Gravity Wave in Sichuan Basin
Published 2025-01-01“…In addition, the horizontal convergence of water vapor primarily occurs in the plain. …”
Get full text
Article -
32
Impact of Mn/Co substitution on magnetoelectric and structural properties of ZnO nanostructures thin films
Published 2025-02-01Get full text
Article