30 hasil untuk "Pingping Qu"
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Artikel Jurnal Teks lengkap
High-Performance Speed Control of PMSM Using Fuzzy Sliding Mode with Load Torque Observer
To enhance the speed control performance of the permanent magnet synchronous motor (PMSM) servo system, an improved sliding mode control method integrating a torque observer is presented. The current loop uses current feedback decoupling PID control, and the speed loop applies sliding mode control…
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Artikel Jurnal Teks lengkap
Study on Coordinated Control Strategy of Multi-Pass Straight Drawing Machine System
To address the issues of poor control performance, synchronization defects, and instability in existing multi-pole permanent magnet synchronous motor (PMSM) control systems using PI control, this paper proposes an optimized control strategy combining Linear Active Disturbance Rejection Control…
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Three-vector model predictive power control of doubly fed induction generator based on linear extended state observer under unbalanced grid
Doubly-fed induction generator (DFIG) is susceptible to unbalanced grid voltage and mismatched motor parameters during grid-connected operation. The conventional model predictive control (MPC) has low complexity and fast dynamic response, which is widely used in the control of DFIG. However, it has…
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Construction of Consensus Genetic Map With Applications in Gene Mapping of Wheat (Triticum aestivum L.) Using 90K SNP Array
Wheat is one of the most important cereal crops worldwide. A consensus map combines genetic information from multiple populations, providing an effective alternative to improve the genome coverage and marker density. In this study, we constructed a consensus map from three populations of…
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Artikel Jurnal Teks lengkap
Socioeconomic status and parent perceptions about the costs and benefits of youth sport
Objectives: Describe what costs and benefits parents across the socioeconomic spectrum weight most heavily when making decisions about sport participation for their children. Method: Cross-sectional survey of a nationally representative online panel of parents of children between the ages of 5 and…
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A satellite selection algorithm based on adaptive simulated annealing particle swarm optimization for the BeiDou Navigation Satellite System/Global Positioning System receiver
In this article, we propose a new particle swarm optimization–based satellite selection algorithm for BeiDou Navigation Satellite System/Global Positioning System receiver, which aims to reduce the computational complexity of receivers under the multi-constellation Global Navigation Satellite…
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Generalized Likelihood Ratio Satellite Navigation Spoofing Detection Algorithm Based on Moving Variance
The vulnerability of Global Navigation Satellite Systems (GNSS) to spoofing limits their widespread use in military security and national economy. Therefore, fast and accurate detection of GNSS spoofing is of great significance. When spoofing cannot be accurately detected in the capture tracking…
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Developmental competence and ultrastructural changes of heat-stressed mouse early blastocysts produced in vitro
Mouse early blastocysts were exposed to temperatures of 39℃ and 41℃ for 2 h, respectively, to determine their developmental competence and ultrastructural changes. The results showed that heat stress at 41℃ for 2 h, significantly reduced the percentages of expanded and hatched blastocysts, but not…
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Artikel Jurnal Teks lengkap
Performance Evaluation of Precise Point Positioning for BeiDou-3 B1c/B2a Signals in the Global Range
With the construction and development of the BeiDou navigation satellite system (BDS), the precise point positioning (PPP) performance of the BDS is worthy of research. In this study, observational data from 17 stations around the world across 20 days are used to comprehensively evaluate the PPP…
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Research progress of ARAIM technology
With the development of multi-constellation satellite navigation systems and dual-frequency technology,it has become possible to apply advanced receiver autonomous integrity monitoring(ARAIM) to higher-level vertical precision approaches.Firstly,three important contents related to ARAIM were…
Juga tersedia di: DOAJ
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Artikel Jurnal
Digital nerve blocks: A systematic review and meta‐analysis
Abstract Study objective Digital nerve blocks (DNBs) provide local anesthesia for minor procedures of the digits. Several DNB techniques have been described, but it is unclear which technique provides adequate anesthesia with the least pain. DNB techniques can be grouped into a dorsal approach…
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Distinct Responses of the Nitrogen-Fixing Marine Cyanobacterium Trichodesmium to a Thermally Variable Environment as a Function of Phosphorus Availability
Surface temperature in the ocean is projected to be elevated and more variable in the future, which will interact with other environmental changes like reduced nutrient supplies. To explore these multiple stressor relationships, we tested the influence of thermal variation on the key marine…
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Peripheral T-cell Lymphoma in Japan: Real-World Patient Characteristics, Treatment Patterns, Healthcare Resource Utilization, and Costs
# Background Peripheral T-cell lymphomas (PTCLs) are a rare and heterogeneous group of non-Hodgkin lymphomas associated with aggressive clinical course and suboptimal outcomes. PTCL accounts for a higher proportion of non-Hodgkin lymphoma cases in Japan compared with Western countries; however…
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Adult T-cell Leukemia/Lymphoma in Japan: Real-World Treatment Patterns, Healthcare Resource Utilization, and Costs
# Background Adult T-cell leukemia/lymphoma (ATL) is a rare and aggressive type of peripheral T-cell malignancy caused by the human T-lymphotropic virus type 1 (HTLV-1). Approximately 5 to 10 million people are infected with HTLV-1 worldwide, with high prevalence in Japan. This observational study…
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MSTAGNN-MARL: A Multi-Level Intelligent Decision Framework for Integrated Spatial-Temporal Conflict Resolution in High-Density Airspace
The spatial and temporal conflicts within terminal maneuvering areas, particularly in multi-airport systems, are growing increasingly complex. Traditional independent processing methods face inherent limitations when dealing with multi-source uncertainties, dynamic weather conditions, and…
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Artikel Jurnal Teks lengkap
Genetic Diversity, Population Structure and Temporal Dynamics of Wheat Cultivars in China
Molecular characterization of wheat varieties is of high importance for wheat breeding. In the present study, 1883 Chinese wheat cultivars released between 1971 and 2025 were genotyped using a wheat 90K SNP array. Analysis of genetic diversity indicated a consistent A > B > D pattern, with the D…
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Consensus linkage map construction and QTL mapping for eight yield-related traits in wheat using the BAAFS Wheat 90K SNP array
Identifying stable quantitative trait loci (QTLs) for yield-related traits across populations and environments is crucial for wheat breeding and genetic studies. Consensus maps also play important roles in wheat genetic and genomic research. In the present study, a wheat consensus map was…