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2081
Unifying error-correcting code/Narain CFT correspondences via lattices over integers of cyclotomic fields
Published 2025-03-01“…This code-lattice construction is redescribed in terms of root and weight lattices of Lie algebras, which allows to construct lattices for codes over rings Zq with non-prime q. Corresponding Narain CFTs are found for codes embedded into quotient rings of root and weight lattices of ADE series, except E8 and Dk with k even. …”
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2082
Pediatric Hand Trauma: An Analysis of 3,432 Pediatric Hand Trauma Cases Over 15 Years
Published 2021-12-01“…We evaluated the sex distribution and injury etiologies. Injuries were classified by type as burns, amputations, crushing injuries, lacerations, extensor and flexor tendon injuries, open and closed fractures, and nerve injuries. …”
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2083
Public Administration Reform over Time – Did Change Lead to a More Effective Integrity Management?
Published 2020-11-01“…This also explains why the current focus of attention is ever more on individuals (as the main cause for unethical conduct) and the bad-person model of integrity. …”
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2084
Capacity analysis for MISO-UWOC systems over GGD weak turbulence with zero boresight pointing error
Published 2023-08-01“…Generalized Gamma distribution (GGD) was chosen to describe the weak oceanic turbulence, and a new hybrid fading channel model that integrated the GGD weak turbulence, the zero boresight pointing error, and the implicit path loss plus multipath propagation characterized by the fading free impulse response (FFIR) was proposed.Subsequently, mathematical expressions for the ergodic capacity and outage capacity of the multiple-input single-output underwater wireless optical communication (MISO-UWOC) systems were derived through the Meijer-G function under a selective transmission (ST) diversity scheme especially while inter-symbol interference (ISI) effects were considered or not.Finally, the correctness of the theoretical formulas derived above was verified by some numerical results.The simulation results show that with the introduction of the ST diversity, the ergodic capacity of the MISO-UWOC systems, taking the transmission ports N=2 as an example, is at least 1.3 times better than that of the conventional point-to-point (P2P) transmission under the same channel condition and system parameters, while the maximum outage capacity decreases is also more than 60% compared with the conventional P2P one.However, the introduction of the ISI will severely reduce this performance improvement.…”
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2085
Thermal Analysis of a Casson Boundary Layer Flow over a Penetrable Stretching Porous Wedge
Published 2024-01-01“…This work aims to analyze the Casson thermal boundary layer flow over an expanding wedge in a porous medium with convective boundary conditions and ohmic heating. …”
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2086
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2087
Analytical Investigation of Laminar Viscoelastic Fluid Flow over a Wedge in the Presence of Buoyancy Force Effects
Published 2014-01-01“…An analytical strong method, the homotopy analysis method (HAM), is employed to study the mixed convective heat transfer in an incompressible steady two-dimensional viscoelastic fluid flow over a wedge in the presence of buoyancy effects. …”
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2088
Moisture-based green energy harvesting over 600 hours via photocatalysis-enhanced hydrovoltaic effect
Published 2025-01-01“…Here, we propose a design for reconstructing the ion concentration gradient by coupling photocatalytic hydrogen evolution reaction with hydrovoltaic effect, to report a moisture-enabled electric generator (MEG) with continuous current output. We show that the introduction of the photocatalytic layer not only absorbs light energy to greatly increase the power generation of the MEG (500% power density enhancement), but more importantly, the photocatalytic hydrogen evolution process consumes the pre-stacked ions to restore the ion concentration gradient, allowing the MEG to continuously output current for more than 600 hours, which is 1 to 2 orders of magnitude higher than the great majority of existed MEGs in terms of the current output duration.…”
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2089
A New QoS Management Scheme for VoIP Application over Wireless Ad Hoc Networks
Published 2014-01-01“…Nowadays, mobile ad hoc networks (MANETs) have to support new applications including VoIP (voice over IP) that impose stringent QoS (quality of service) constraints and requirements. …”
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2090
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2091
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2092
Nondata-aided error vector magnitude based adaptive modulation over rapidly time-varying channels
Published 2017-03-01“…A novel nondata-aided error vector magnitude based adaptive modulation(NDA-EVM-AM) was proposed to solve the problem of lower spectral efficiency over rapidly time-varying wireless channels.Namely,NDA-EVM was considered as a metric to reflect the rapid change of time-varying channels.The unified model to calculate different modulation order of NDA-EVM was analytically derived,with which the relationship between NDA-EVM and bit error rate (BER) for each modulation order was presented.Thereafter,the mechanism to adaptively select the modulation orders of multilevel quadrature amplitude modulation (MQAM) signals was designed to guarantee the predefined BER.Taking the two rapidly time-varying channels proposed for high-speed railway scenarios as examples,numerical results are conducted to verify the effectiveness of the proposed algorithm.It shows that NDA-EVM estimation has the lest root mean square error than data-aided error vector magnitude (DA-EVM) estimation and signal to noise ratio estimation.The proposed algorithm has better accuracy in aspects of channel quality estimation and modulation orders adjustment,Compared with conventional data-aided error vector magnitude based-adaptive modulation (DA-EVM-AM),the accuracy improves by 7.9%,spectral efficiency improves by 0.53 bit·s<sup>−1</sup>·Hz<sup>−1</sup>,and compared with signal to noise ratio based-adaptive modulation (SNR-AM),the accuracy improves by 15.7%,spectral efficiency improves by 0.82 bit·s<sup>−1</sup>·Hz<sup>−1</sup>.…”
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2093
Assessment of Drought Impact on Vegetation Changes in Hamadan over the Past Three Decades Using the TCI Model
Published 2025-06-01“…The spatial behavior analysis of the drought index on vegetation cover showed that February, March, as well as April have experienced more severe droughts within Hamedan province.…”
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2094
Improved estimation of carbon dioxide and methane using machine learning with satellite observations over the Arabian Peninsula
Published 2025-01-01“…This study aims to develop an advanced technique to produce high-fidelity (1 km) maps of CO2 and CH4 over the Arabian Peninsula, a highly vulnerable region to climate change. …”
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2095
Body image of men and women with congenital heart disease over a 15 years observational period
Published 2025-02-01“…We examined body image of CHD-patients as compared with the general population, the stability of body image of patients over time, and the relationship of body image with disease severity. …”
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2096
A description on decadal changes in warm season average of precipitation over the Caspian coast of Iran territory
Published 2022-03-01“…In current research the decadal changes of monthly precipitation over the Caspian coast of Iran territory was evaluated. …”
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2097
Spatiotemporal patterns in precipitation whiplash over China during 1901–2100 based on CMIP6 simulations
Published 2025-01-01“…The results show an increasing trend in frequency, intensity, and severity of precipitation whiplash events, particularly for the long-term future, while the duration of these transitions shows a decreasing trend. …”
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2098
Electrophoretic Deposition of Carbon Nanotubes over TiO2 Nanotubes: Evaluation of Surface Properties and Biocompatibility
Published 2014-01-01“…The present study aims to modify the surface of titanium by anodizing to form TiO2 NTs and subsequently deposit CNTs over it by electrophoretic deposition (EPD). Characteristic, biocompatibility, and apatite forming ability of the surface modified samples were evaluated. …”
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2099
Interpreting seasonal droughts over the Yangtze River Basin utilizing anomalies of local-scale atmospheric circulation
Published 2025-04-01“…Study focus: This study quantifies the contribution of local-scale factors to seasonal droughts over the YRB, with a particular emphasis on specific humidity, vertical velocity, horizontal divergence, and relative vorticity at pressure levels from 100 to 925hPa. …”
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2100
Ionospheric Response to the M‐ and X‐Class Solar Flares of 28 October 2021 Over the African Sector
Published 2022-08-01“…However, using South African ionosonde data over Hermanus (34.4°S, 19.2°E) and Grahamstown (33.3°S, 26.5°E), we show that the lower frequencies in the E and F1 layers were the most affected by the M‐class solar flares. …”
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