-
1301
Influence of nominal distortion of Beidou-3 B1C signal on ranging performance
Published 2019-02-01“…The B1C signal is selected as a civil navigation signal for the BDS-3 system,which adopts a complex constant envelope modulation in the B1 frequency band.Therefore,it is easy to generate nominal distortion during signal generation.Such nominal distortion of each satellite produces inconsistent ranging deviation and directly degrades the system positioning performance.A complete ranging deviation estimation method was proposed for B1C signals in this paper.Firstly,the S-Curve Bias (SCB) was used to quantitatively analyze the B1C signal ranging deviation,and the standard correlation curve estimation method was proposed to realize the accurate estimation of the code phase deviation at the peak of the correlation curve.Secondly,a algorithm was designed to solve the problem of QMBOC signal mislocking at the platform during receiver tracking.Finally,the actual ranging bias and nature ranging bias of each satellite of Beidou-3 under different correlation intervals and front-end bandwidth of the user receiver were analyzed based on the satellite downlink signals collected from the 40-meter high-gain antenna at the National Time Service Center,and the recommended user receiver parameter range was given.The strategy proposed in this paper can be extended to other MBOC signal ranging error estimation,and the test results can be thought of as a reference to the development of BeiDou-3 receiver.…”
Get full text
Article -
1302
Influence of nominal distortion of Beidou-3 B1C signal on ranging performance
Published 2019-02-01“…The B1C signal is selected as a civil navigation signal for the BDS-3 system,which adopts a complex constant envelope modulation in the B1 frequency band.Therefore,it is easy to generate nominal distortion during signal generation.Such nominal distortion of each satellite produces inconsistent ranging deviation and directly degrades the system positioning performance.A complete ranging deviation estimation method was proposed for B1C signals in this paper.Firstly,the S-Curve Bias (SCB) was used to quantitatively analyze the B1C signal ranging deviation,and the standard correlation curve estimation method was proposed to realize the accurate estimation of the code phase deviation at the peak of the correlation curve.Secondly,a algorithm was designed to solve the problem of QMBOC signal mislocking at the platform during receiver tracking.Finally,the actual ranging bias and nature ranging bias of each satellite of Beidou-3 under different correlation intervals and front-end bandwidth of the user receiver were analyzed based on the satellite downlink signals collected from the 40-meter high-gain antenna at the National Time Service Center,and the recommended user receiver parameter range was given.The strategy proposed in this paper can be extended to other MBOC signal ranging error estimation,and the test results can be thought of as a reference to the development of BeiDou-3 receiver.…”
Get full text
Article -
1303
Silver threads: Unraveling the role of nucleolar organizer regions in breast tumors
Published 2025-07-01“…BACKGROUND: Nucleolar Organizer regions (NORs) are loops of DNA actively associated with nucleolus, which code for ribosomal RNA consisting of nonhistone proteins, which are argyrophilic. …”
Get full text
Article -
1304
An Investigation on Local Shearing Mechanisms of Irregular Dentate Rock Joints Using the PFC
Published 2022-01-01“…The maximum stress of each protrusion before the shear stress peak was introduced to quantitatively describe the contribution of local protrusions to shear stress. …”
Get full text
Article -
1305
Mahakala: A Python-based Modular Ray-tracing and Radiative Transfer Algorithm for Curved Spacetimes
Published 2025-01-01“…The modular nature of Mahakala allows us to quantitatively explore how different regions of the flow influence different image features. …”
Get full text
Article -
1306
CFD Analysis of a Slug Mixing Experiment Conducted on a VVER-1000 Model
Published 2009-01-01“…The numerical results are qualitatively and quantitatively analyzed and compared against the measured data in terms of space and time tracer distribution at the core inlet. …”
Get full text
Article -
1307
TCP Performance Over Satellite-Based Hybrid FSO/RF Vehicular Networks: Modeling and Analysis
Published 2021-01-01“…The error-control solutions, including the Reed-Solomon (RS) code and Selective repeat automatic repeat request (SR-ARQ), are also employed. …”
Get full text
Article -
1308
Comparison of cryogenic and non-cryogenic droplet impact dynamics at low Weber numbers
Published 2025-02-01“…The simulations have been performed in OpenFOAM with a newly developed code. The results obtained are analysed both qualitatively and quantitatively, comparing the droplet morphology evolution for the two fluids. …”
Get full text
Article -
1309
Automating areas of interest analysis in mobile eye tracking experiments based on machine learning
Published 2018-12-01“…Together with a real-time capability of the mapping process after completed training, even hours of eye tracking recording can be evaluated efficiently. (Code and video examples have been made available at: https://gitlab.ethz.ch/pdz/cgom.git)…”
Get full text
Article -
1310
Application of Artificial Intelligence using K-Means for Programming Question Assessment
Published 2025-07-01“…System performance was validated quantitatively by comparing cluster results against ground truth labels from manual grading. …”
Get full text
Article -
1311
Piloting a PREMs and PROMs longitudinal survey on the integration of healthcare services for patients living with hepatitis C in Tuscany region: study protocol
Published 2024-10-01“…The data from the three structured questionnaires will be analysed quantitatively.Ethics and dissemination The Ethics Committee for Clinical Experimentation of Area Vasta Nord Ovest approved the protocol (CEAVNO—CODE 18829). …”
Get full text
Article -
1312
Vulnerability Analysis of Column-Supported Reinforced Concrete Silo Structures
Published 2025-02-01“…To aid seismic design, a numerical simulation of the seismic performance of column-supported reinforced concrete silos was performed, and the performance was quantitatively described. The focus of the research was on determining the damage levels of these silos by adopting an incremental dynamic analysis. …”
Get full text
Article -
1313
Increasing uptake of self-management education programmes for type 2 diabetes in primary care: the Embedding research programme including an RCT
Published 2025-02-01“…Methods Workstream 1: developing Embedding Package Mixed-methods development work for the Embedding Package, including: (1) secondary analysis of existing qualitative data, systematic literature review and the merging of the resulting coded data with further analysis; (2) stakeholder consultation through workshops and interviews; and (3) analysis of all collected data. …”
Get full text
Article -
1314
Precision and Characteristics of Satellite Spatial Quality Estimators’ Measurement Using an Edge Target Imaged with KOMPSAT-3A
Published 2024-12-01“…In this work, the best spatial quality estimator is proposed by quantitatively comparing and analyzing the precision between the Relative Edge Response (RER), the Full Width at Half Maximum (FWHM), the MTF value at the Nyquist frequency (MTF50), and the MTF Area between 0 and the Nyquist frequency (MTFA). …”
Get full text
Article -
1315
Effects of Soil–Structure Interaction on the Seismic Response of RC Frame–Shear Wall Building Structures Under Far-Field Long-Period Ground Motions
Published 2024-11-01“…The shear force reduction in the current code may not be applicable to the structural design considering the SSI effect under far-field long-period ground motions. …”
Get full text
Article -
1316
Atomistic Observation of Defect Generation and Microstructural Evolution in Polycrystalline FeCrAl Alloys Under Different Irradiation Conditions
Published 2025-06-01“…Using the LAMMPS molecular dynamics code, displacement cascades were simulated under irradiation doses ranging from 0.05 dpa to 0.5 dpa while evaluating the dependencies on temperature and grain size. …”
Get full text
Article -
1317
Data-constrained Magnetohydrodynamic Simulation of a Filament Eruption in the Decaying Active Region 13079 on a Global Scale
Published 2025-01-01“…Scientifically, the model allows us to quantitatively describe and diagnose the entire process of filament eruption.…”
Get full text
Article -
1318
Applying Mobile Technology to Address Gender-Based Violence in Rural Nigeria: Experiences and Perceptions of Users and Stakeholders
Published 2024-12-01“…The interviews and data from the server were analyzed qualitatively and quantitatively. The results indicate that over a 27-month period, 3,403 reports were received by the server, 34.9% of which were reporting GBV. …”
Get full text
Article -
1319
Cell graph analysis in hepatocellular carcinoma: predicting local recurrence and identifying spatial relationship biomarkers
Published 2025-07-01“…All cell semantic segmentation datasets and code are publicly available: https://github.com/Yuan1z0825/HGTs .…”
Get full text
Article -
1320
Adaptation of the Serious Illness Conversation Guide to Singapore's Multicultural Setting for Patients With Heart Failure, Renal Failure, or Cancer
Published 2024-10-01“…Participants' response to each item on the SICG was coded quantitatively into categories to denote participant acceptance, partial acceptance, or nonacceptance. …”
Get full text
Article