Explanipedia

Simulating the late stages of WD-BH/NS mergers: an origin for fast X-ray transients and GRBs with periodic modulations Open

Junping Chen, Rong-Feng Shen, Jin-Hong Chen · 2025

Recent studies indicate that mergers of a white dwarf (WD) with a neutron star (NS) or a stellar-mass black hole (BH) may be a potential progenitor channel for certain merger-kind, but long-duration $γ$-ray bursts (GRBs), e.g., GRBs 230307…

Complementary feeding and caregiver sleep: findings from a representative survey in Chongqing, China Open

Ya Shi, Shengping Li, Junping Chen, Xufeng Su, Zumin Shi , et al. · 2025

Objective Sleep health and correct complementary feeding are important considerations in public health. This study aims to confirm that correct complementary feeding (CCF) practices are complex and crucial, and they can also influence the …

Design of a hybrid AI network circuit for epilepsy detection with 97.5% accuracy and low cost-latency Open

Lizhi Sheng, Xuanxu Chen, Yuejun Zhang, Ke Yan, Junping Chen , et al. · 2025

Epilepsy detection using artificial intelligence (AI) networks has gained significant attention. However, existing methods face challenges in accuracy, computational cost, and speed. CNN excel in feature extraction but suffer from high com…

Spatiotemporal inhomogeneity of accuracy degradation in AI weather forecast foundation models: A GNSS perspective Open

Junsheng Ding, Wu Chen, Junping Chen, Jungang Wang, Yize Zhang , et al. · 2025

The artificial intelligence (AI) weather forecast foundation models can infer and generate precise global atmospheric state forecasts on the user’s device and with speed over 10,000 times faster than the operational Integrated Forecasting …

Study on the Impact of Design Parameters of Photovoltaic Com-Bined Vacuum Glazing (PVCVG) on the Energy Consumption of Residential Buildings in Lhasa Open

Luyang Zhong, Dan Wu, Bo Zhang, Lixing Chen, Junping Chen , et al. · 2025

Synergistic active-passive utilization of solar energy in buildings plays an important role in achieving nearly zero energy buildings. Building-integrated photovoltaic (BIPV) is a crucial initiative to reduce heating energy consumption, es…

Optimizing nitrogen application position to change root distribution in soil and regulate maize growth and yield formation in a wide–narrow row cropping system: pot and field experiments Open

Shiyong Zhou, Pan Xia, Junping Chen, Qijiao Xiong, G.S. Li , et al. · 2024

The wide-and narrow-row cropping technology used for maize has the advantages of protecting cultivated soil and improving the population structure in maize fields. However, the relationship between nitrogen application position and root in…

Transient quasi-periodic oscillations in the gamma-ray light curves of bright blazars Open

Junping Chen, Jinjie Yu, Weitian Huang, Nan Ding · 2024

Transient quasi-periodic oscillations (QPOs) are extremely interesting observational phenomena. However, the precise physical mechanisms leading to their generation are still hotly debated. We performed a systematic search for transient QP…

Real-Time Precise Point Positioning Method Considering Broadcast Ephemeris Discontinuities Open

Q.H. Cheng, Junping Chen, Yize Zhang, Chao Yu · 2024

With advancements in the broadcast ephemeris accuracy of global navigation satellite systems (GNSSs), precise point positioning based on broadcast ephemeris (BE-PPP) is gradually showing promising prospects. However, the periodic updates o…

Forecasting of Tropospheric Delay Using Ai Foundation Models in Support of Microwave Remote Sensing Open

Junsheng Ding, Xiaolong Mi, Wu Chen, Junping Chen, Jungang Wang , et al. · 2024

Region-Specific and Weather-Dependent Characteristics of the Relation between GNSS-Weighted Mean Temperature and Surface Temperature over China Open

Minghua Wang, Junping Chen, Jie Han, Yize Zhang, Mengtian Fan , et al. · 2023

Weighted mean temperature of the atmosphere, Tm, is a key parameter for retrieving the precipitable water vapor from Global Navigation Satellite System observations. It is commonly estimated by a linear model that relates to surface temper…

Prediction of postoperative infection in elderly using deep learning-based analysis: an observational cohort study Open

Pinhao Li, Yan Wang, Hui Li, Baoli Cheng, Shuijing Wu , et al. · 2023

Elderly patients are susceptible to postoperative infections with increased mortality. Analyzing with a deep learning model, the perioperative factors that could predict and/or contribute to postoperative infections may improve the outcome…

Analysis of ionospheric corrections for single-frequency GNSS spaceborne applications Open

Bin Wang, Junping Chen, Yize Zhang, Weijie Tan · 2023

ESG Performance and Stock Price Volatility Open

Junping Chen, Yuyin Ying · 2023

Environmental, social and governance (ESG) has emerged over the past two decades as a crucial ethical construct in modern economies. This paper selects ESG rating of A-share listed companies from 2020 to 2021 to explore the impact of ESG p…

Research on Comparative Monitoring Method of Aerodynamic Coefficient Applied to Artificial Ice Flight Test Open

Zeqian Xu, Junping Chen · 2022

In the implementation of the artificial ice flight test, artificial ice shapes must be installed to the test aircraft, which reduces the aerodynamic performance of the aircraft and leads to a high risk. In order to reduce the risk of artif…

Increasing trend of Precipitable Water Vapor in Antarctica and Greenland Open

Junsheng Ding, Junping Chen, Wenjie Tang · 2022

<p>Polar precipitable water vapor (PWV) is expected to increase under a warming climate. However, the conventional approach cannot provide sufficient long-term PWV records due to the high maintenance costs. Fortunately, the exponenti…

Characteristics analysis and correction of GPS precise products in analysis centers based on Lomb-Scargle periodogram Open

Yangfei Hou, Junping Chen, Yize Zhang · 2022

<p>Considering that the precise orbit and clock products provided by international GNSS service (IGS) were of a magnitude different from those required by the global geodetic observing system (GGOS) in accuracy of 1 mm, the Lomb-Scar…

Real-Time Precise GPS Orbit and Clock Estimation With a Quasi-Orbit-Fixed Solar Radiation Pressure Model Open

Peizhao Liu, Junping Chen · 2022

Real-time precise global navigation satellite system (GNSS) orbit and clock products play a key role for real-time GNSS-based applications, both in the scientific and industrial communities. Different from the typical two-step procedure to…

Research on measures suppressing high frequency transient overvoltage in offshore wind farms Open

Sisi Li, Fang Chun-en, Lin Pan, Jiaojiao Duan, Junping Chen · 2021

A large number of different types of cables, wind turbines, transformers and vacuum circuit breakers (VCBs) are used in power collecting system of offshore wind farms (OWFs). Due to the phenomenon of traveling wave refraction and reflectio…

Design and simulation of DC regulated circuit for current source input type based on Tina-TI Open

Tao Xue, Xiangnan Hu, Fang Chun-en, Xuhui Fu, Wei Li , et al. · 2021

In the multi-output high-voltage isolated power supply for solid-state switches, LCL resonant network is used to obtain the constant current source on the bus, and the bus current is independent of the load. Therefore, the secondary side o…

Decimeter-level algorithm for satellite-based augmentation systems and performance analysis of BDS-2/BDS-3 Open

Jianhua Zhou, Yize Zhang, Junping Chen, Ahao Wang, Chao Yu , et al. · 2020

BeiDou navigation satellite systems and satellite-based augmentation systems (BDS-SBAS) broadcast various wide-area differential corrections, including satellite orbit/clock corrections, ionospheric grids, and partition comprehensive corre…

Comparison Between IGS and Three ITRS Realizations Open

Jiao Liu, Junping Chen, Peizhao Liu, Weijie Tan, Danan Dong , et al. · 2020

Four space geodetic techniques (IGS, SLR, VLBI and DORIS) contribute to the realizations of International Terrestrial Reference System (ITRS). The GNSS-derived terrestrial reference frame generated from the second reprocessing campaign (re…

Research on full-bridge LCL resonant converter as constant current source in the ZVS condition Open

Tao Xue, Xiangnan Hu, Fang Chun-en, Chunyan Zeng, Xuhui Fu , et al. · 2020

A LCL-based resonant converter is shown to behave as a constant-current source when operated at resonant frequency in this paper. This paper focuses on the realization of zero voltage switching (ZVS) in the case of constant-current in LCL …

Research on motion characteristics and stability of 500kV fast mechanical switch Open

Leichao Huang, Fang Chun-en, Wei Li, Xiaoyu Tang, Ning Zhang , et al. · 2020

The key component of fast mechanical switch (FMS) is electromagnetic repulsion mechanism (ERM), and the stability of ERM has an important influence on fault breaking time and breaking performance of hybrid DC circuit breaker (DCCB). In thi…

Applying the ICA method to extract the potential signals in GNSS timeseries Open

Weijie Tan, Junping Chen, Weijing Qu · 2020

<p>Spatial filtering is an effective way to identify and reduce the so-called common mode error (CME) from the regional GPS networks measurements, which could improve GPS positioning accuracy and precision for detection of subtle cru…

NAV volume 72 issue 5 Cover and Back matter Open

Tian Jin, Bingjie Hu, Yining Sun, Zhigang Huang, Qian Wang , et al. · 2019

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

PPP algorithm using BDS new SBAS differential corrections Open

Junping Chen, Ahao Wang, Yize Zhang, Jianhua Zhou, Binghao Wang , et al. · 2019

Since January 2017, BDS provides users with decimeter-level SBAS point positioning capability through the broadcasting of upgraded differential corrections, including satellite orbit error corrections, satellite clock error corrections, io…

Fast Green FCF Attenuates Lipopolysaccharide-Induced Depressive-Like Behavior and Downregulates TLR4/Myd88/NF-κB Signal Pathway in the Mouse Hippocampus Open

Jingyu Yang, Rongjun Liu, Fan Lü, Xu Fang, Jinwei Zheng , et al. · 2019

Depression is a common neuropsychiatric disorder and new anti-depressive treatments are still in urgent demand. Fast Green FCF, a safe biocompatible color additive, has been suggested to mitigate chronic pain. However, Fast green FCF's eff…

Contribution of the BDS to availability and reliability improvement: A case study of dam surface displacement monitoring in China Open

Shanqi Huang, Junping Chen, Hu Wang · 2019

The GPS-only system is limited in dam surface monitoring because of its low availability and reliability due to the visible satellites are not enough. This dilemma is expected to be solved through incorporating the China's BeiDou System (B…

Service Performance Enhancement Technologies for BeiDou Navigation Satellite System along the Belt and Road Open

Jianhua Zhou, Junping Chen, Jingyu Zhang · 2019

To solve problems in globalization of the BeiDou Navigation Satellite System (BDS), this paper first analyzes the service performance and application status of the BDS, based on the overall application and development trend of satellite na…

Zone Correction:A SBAS Differential Correction Model for BDS Decimeter-level Positioning Open

Junping Chen, Yize Zhang, ZHOU Jianhua, YANG Sainan, HU Yifan , et al. · 2018

To support the requirement of decimeter-level BDS SBAS service,a type of differential correction,the "zone correction",it is developed. It represents the remaining un-modeled errors of pseudo-range and carrier phase observations,and could …

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