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2641
大型可展开网状天线反枕效应研究进展
Published 2025-01-01“…It is too expensive to supplement air source and the self-curing technology is not mature, so it is difficult to achieve the effect of uniform curing in orbit and has not been applied in practice;The realization of uniform load is not ideal. …”
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2642
Analysis of the spatiotemporal dynamics of grassland carbon sinks in Xinjiang via the improved CASA model
Published 2025-01-01“…The analysis revealed that (1) the R2 value of the optimal CASA model was 0.70, and the RMSE was 22.30 gC·m−2. (2) The 23-year average NEP in Xinjiang grassland was 113.00 gC·m−2·a−1, with 82.20 % carbon sink areas and 17.80 % carbon source areas. (3) NEPs of meadows, steppes, and desert grasslands in the Xinjiang region tended to increase during spring, summer, and autumn. (4) During the 23-year period, 15.77 % of the Xinjiang grassland area transitioned from carbon sources to carbon sinks. (5) Relative humidity and soil pH strongly influenced the NEP of Xinjiang grassland. …”
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2643
Dazzle: Oversampled Image Reconstruction and Difference-imaging Photometry for the Nancy Grace Roman Space Telescope
Published 2025-01-01“…Transient photometry is performed via PSF fitting on difference images, using Nelder–Mead optimization for subpixel accuracy. The software, Dazzle, is available as an open-source Python package built on widely used libraries, offering accessible tools for the detection and characterization of transient phenomena in crowded fields.…”
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2644
Enhancing the Efficiency and Schedule of Solar Thermal Power Plants by Utilizing Thermal Storage Devices to Minimize Carbon Emissions
Published 2025-01-01“…The renewable energy method of photo thermal power generation has great promise for future advancements. …”
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2645
Greening concept in inventory system for deteriorating items with preservation investment and price and stock dependent demand via marine predators algorithm
Published 2025-08-01“…The robustness of the solution method is further demonstrated by comparing the MPA’s performance with other optimization techniques in terms of solution quality and computational efficiency. …”
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2646
Noise Testing of the Conveyor Trough Sprocket and Surface Noise Reduction Performance Evaluation of the Cavity Structure in a Combine Harvester
Published 2025-06-01“…Frequency spectrum analysis identified key noise sources and dominant frequency components. Finite element analysis (FEA) and vibration modal testing were performed to uncover critical noise-inducing factors, including chain meshing impacts and structural resonances. …”
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2647
Evaluation Modeling of Electric Bus Interior Sound Quality Based on Two Improved XGBoost Algorithms Using GS and PSO
Published 2024-04-01“…Aiming at the practical application requirements of high-precision modeling of acoustic comfort in vehicles, this paper presented two improved extreme gradient boosting (XGBoost) algorithms based on grid search (GS) method and particle swarm optimization (PSO), respectively, with objective parameters and acoustic comfort as input and output variables, and established three regression models of standard XGBoost, GS-XGBoost, and PSO-XGBoost through data training. …”
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2648
Hinged plakin domains provide specialized degrees of articulation in envoplakin, periplakin and desmoplakin.
Published 2013-01-01“…The range of mobility of the two arms about the hinge is revealed by applying the ensemble optimization method to small-angle X-ray scattering data. …”
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2649
Resource allocation scheme in two-way multi-relay OFDM system
Published 2017-09-01“…A joint optimization scheme for power allocation and subcarrier pairing under high SNR in two-way multi-relay OFDM system was proposed.Unlike those schemes in which relays use subcarriers separately,all the relays were allowed to forward signal on each subcarrier pair for providing much space diversity.With the constraint of total system power,the proposed scheme firstly allocated each relay power with Cauchy inequality with the assuming that the total relay power was fixed.Then the dichotomy was used to calculate the power allocation between the source node and the relay node by maximizing the equivalent channel gain for different subcarrier pairs.Lastly,the power of different subcarrier pairs was allocated by convex programming,and the subcarriers were paired by Hungarian algorithm to obtain the maximum system capacity.There was no optimal power allocation method with low complexity because of the complexity of the power allocation algorithm in two-way multi-relay networks.This algorithm greatly reduces the complexity of power allocation and simulation results show that the proposed scheme outperforms the relay selection scheme and the relays use subcarriers separately scheme.…”
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2650
Application, Implementation and Development of Automated Driving in Special Scenarios
Published 2025-01-01“…Aiming at the limitation of traditional method, this paper puts forward multiple sensor fusion, dynamic obstacle avoidance algorithm optimization and multimode situation awareness integration scheme. …”
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2651
Current status and prospects of research on the pollution and treatment technologies of per- and polyfluoroalkyl substances
Published 2025-07-01“…Additionally, it provides a forward-looking perspective on future research directions, compares the principles, applications, efficiency, and cost-effectiveness of different technologies, and proposes a novel evaluation framework to guide technology selection and optimization. Compared to previous studies, this article offers a more comprehensive and systematic review of PFAS treatment technologies, aiming to serve as a valuable reference for developing advanced PFAS removal methods.…”
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2652
AMMap tool for additive manufacturing design, alloy discovery, and path planning
Published 2025-01-01“…To define and navigate the high order chemical systems of CCMs/FGMs, the open-source tool, AMMap, has been developed utilizing open models and CALPHAD methods for thermodynamic computation. …”
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2653
Learning dual context aware POI representations for geographic mapping
Published 2025-08-01“…This study provides a new insight to mine deep information from POIs, contributing to a better understanding of urban systems. The source code is released at http://github.com/quan-qin/DCA.…”
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2654
Measurement-Based Neural Network Technique for Modeling the Low-Frequency Electric Field Radiated Behavior of Satellite Units
Published 2024-12-01“…In this work, various ANN architectures are tested and compared in order to select the optimal <i>EDMnet</i> parameters for accurate source identification. …”
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2655
An Explainable Fuzzy Framework for Assessing Preeclampsia Classification
Published 2025-06-01“…<b>Methods:</b> The model integrates fuzzy decision trees with a genetic algorithm to identify a compact and relevant set of rules, optimized for both accuracy and interpretability. …”
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2656
Structure and Antibiotic Resistance of the Main Causative agents of Infections Associated with the Provision of Medical care
Published 2023-03-01“…P. aeruginosa and K. pneumoniae were identified as the main causative agents of HAI with multiple resistance to AMPs in the children's multidisciplinary hospital, the source of which was mainly the respiratory tract. …”
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2657
3D Reconstruction With Spherical Cameras
Published 2025-01-01“…In the camera locating part, we use a global descriptor augmentation model to build a labeled panorama dataset GDAP, in which the images are captured by our designed spherical cameras; In the depth estimation part, we propose a new network UMDE that can estimate the depth of both indoor and outdoor scenes; Finally, in the 3D surface reconstruction section, we turn the reconstruction problem to a graph optimization problem, called GraphFit, in which, we optimize the point clouds with s-t graph and smoothing method successively. …”
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2658
Impact of glucose and propionic acid on even and odd chain fatty acid profiles of oleaginous yeasts
Published 2025-02-01“…When using the OCFAs precursor propionic acid as the sole carbon source, only eight strains exhibited growth, with tolerance to propionic acid concentrations between 5 and 29 g/L. …”
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2659
Bioproduction of Nordihydroguaiaretic and Ellagic Acid from Creosote Bush Leaves (<i>Larrea tridentata</i>) Using Solid-State Fermentation with <i>Aspergillus niger</i> GH1
Published 2025-04-01“…Creosote bush is a recognized source of these bioactive compounds, which possess antioxidant and anti-inflammatory properties. …”
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2660
Research of edge-aligned staggered double-vane traveling-wave tube at G-band
Published 2025-03-01“…Results show that under the optimization of the efficiency improving methods of the TWT, a considerable power output can be realized. …”
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