Qingquan Chen

ORCID: 0000-0001-9254-5849
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About
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Research Areas
  • Sleep and related disorders
  • Metallurgical Processes and Thermodynamics
  • COVID-19 epidemiological studies
  • Space Satellite Systems and Control
  • Health disparities and outcomes
  • Neuroscience of respiration and sleep
  • Air Quality and Health Impacts
  • COVID-19 and Mental Health
  • Obstructive Sleep Apnea Research
  • Influenza Virus Research Studies
  • Cancer survivorship and care
  • Respiratory Support and Mechanisms
  • Superconducting Materials and Applications
  • Gout, Hyperuricemia, Uric Acid
  • Pancreatic and Hepatic Oncology Research
  • Traumatic Ocular and Foreign Body Injuries
  • Advanced Technologies in Various Fields
  • Geoscience and Mining Technology
  • Evacuation and Crowd Dynamics
  • Electric Motor Design and Analysis
  • COVID-19 and healthcare impacts
  • Geomechanics and Mining Engineering
  • Climate Change and Health Impacts
  • Electromagnetic Launch and Propulsion Technology
  • Liver Disease Diagnosis and Treatment

Fujian Medical University
2022-2025

Second Affiliated Hospital of Fujian Medical University
2024-2025

National University of Defense Technology
2019-2023

Cixian People's Hospital
2019

Chinese People's Armed Police Force
2013

China People's Police University
2012-2013

Nankai University
2013

Policijska akademija
2012

Police Academy
2012

Harbin Institute of Technology
2010-2011

Background This study employs a network analysis approach to explore the interconnections between anxiety, depression, and sleep problems smartphone addiction among college students using analysis, offering new perspective on these prevalent mental health issues. Methods A cross-sectional was conducted art at public university in province of Fujian, China. Data were collected Generalized Anxiety Disorder Scale-7, Patient Health Questionnaire-9, Pittsburgh Sleep Quality Index, Mobile Phone...

10.3389/fpsyt.2025.1533757 article EN cc-by Frontiers in Psychiatry 2025-03-04

The aim of this study was to gain insights into the epidemiology, spatial trends, structure evolution, and spatiotemporal aggregation characteristics influenza epidemics during seasonal COVID-19 pandemic in Fuzhou from 2013 2022. Utilizing case report data spanning 2022, we applied descriptive epidemiological methods analyze distribution patterns reported cases across various time periods, populations, regions. Furthermore, employed trend-surface analysis, kernel density estimation,...

10.1038/s41598-025-93372-z article EN cc-by-nc-nd Scientific Reports 2025-03-12

COVID-19 has been reported to affect the sleep quality of Chinese residents; however, epidemic's effects on college students during closed-loop management remain unclear, and a screening tool is lacking.This study aimed understand in Fujian Province epidemic determine sensitive variables, order develop an efficient prediction model for early problems students.From April 5 16, 2022, cross-sectional internet-based survey was conducted. The Pittsburgh Sleep Quality Index (PSQI) scale,...

10.2196/45721 article EN cc-by Journal of Medical Internet Research 2023-02-16

Marital status is an independent prognostic factor for survival in many types of cancers, but its impact on patients with prostate cancer (PCa) has not been established. The aim this study was to explore the factors PCa and investigate effect marital outcomes different stratified by PCa. Using surveillance, epidemiology, end results (SEER) database, we collected data 584,655 diagnosed between 1975 2019. classified as married, divorced, widowed, single. We used Kaplan-Meier analysis single...

10.1038/s41598-024-56145-8 article EN cc-by Scientific Reports 2024-03-14

Abstract Type 2 diabetes with hyperuricaemia may lead to gout, kidney damage, hypertension, coronary heart disease, etc., further aggravating the condition of as well adding medical and financial burden. To construct a risk model for in patients type mellitus based on artificial neural network, evaluate effectiveness provide directions prevention control disease this population. From June December 2022, 8243 were recruited from six community service centers questionnaire physical...

10.1038/s41598-024-52550-1 article EN cc-by Scientific Reports 2024-01-25

Abstract Air pollution has become a significant concern for human health, and its impact on influenza, been increasingly recognized. This study aims to explore the spatiotemporal heterogeneity of impacts air influenza confirm better method infectious disease surveillance. Spearman correlation coefficient was used evaluate between case counts. VIF test collinearity among selected pollutants. OLS regression, GWR, STWR models were fitted potential relationship influenza. The R 2 , RSS AICc...

10.1038/s41598-024-54630-8 article EN cc-by Scientific Reports 2024-02-19

Background Hyperuricemia is a common complication of type 2 diabetes mellitus and can lead to serious consequences such as gout kidney disease. Methods Patients with from six different communities in Fuzhou were recruited June December 2022. Questionnaires, physical examinations, laboratory tests conducted collect data on various variables. Variable screening steps performed using univariate multivariate stepwise regression, least absolute shrinkage selection operator (LASSO) Boruta feature...

10.1177/20552076241241381 article EN cc-by-nc-nd Digital Health 2024-01-01

Influenza is a highly contagious respiratory disease that presents significant challenge to public health globally. Therefore, effective influenza prediction and prevention are crucial for the timely allocation of resources, development vaccine strategies, implementation targeted interventions.

10.1186/s12889-024-18583-x article EN cc-by BMC Public Health 2024-05-25

Age, gender, body mass index (BMI), and mean heart rate during sleep were found to be risk factors for obstructive apnea (OSA), a variety of methods have been applied predict the occurrence OSA. This study aimed develop evaluate OSA prediction models using simple accessible parameters, combined with multiple machine learning algorithms, integrate them into cloud-based mobile medicine management platform clinical use. The data obtained from records 610 patients who underwent polysomnography...

10.1038/s41598-024-70647-5 article EN cc-by-nc-nd Scientific Reports 2024-08-26

As the exploitation of astrospace deepens, many new types space-based electromagnetic launchers (EMLs) have aroused wide attention and discussions. Compared with traditional slotted linear launchers, a slotless-plate permanent-magnet synchronous motor can easily meet demands such as flexible structure, light weight, high control precision for space use. This paper analyzes magnetic field slotless inverted-U structure based on equivalent-magnetizing-current method. The validity this technique...

10.1109/tps.2010.2049590 article EN IEEE Transactions on Plasma Science 2010-05-28

10.1007/s11467-013-0302-3 article EN Frontiers of Physics 2013-03-20

Abstract Pancreatic cancer is a commonly occurring malignant tumor, with pancreatic ductal carcinoma (PDAC) accounting for approximately 95% of cases. According its poor prognosis, identifying prognostic factors can provide physicians reliable theoretical foundation when predicting patient survival. This study aimed to analyze the impact marital status on survival outcomes PDAC patients using propensity score matching and machine learning. The goal was develop prognosis prediction model...

10.1038/s41598-024-53145-6 article EN cc-by Scientific Reports 2024-03-04

Obstructive sleep apnea (OSA) is a common and potentially fatal disorder. The purpose of this study was to construct an objective easy-to-promote model based on clinical biochemical indicators demographic data for OSA screening.

10.2147/nss.s453794 article EN cc-by-nc Nature and Science of Sleep 2024-04-01

In recent years, an increasing number of observational studies have reported the impact air pollution on autoimmune diseases (ADs). However, no Mendelian randomization (MR) been conducted to investigate causal relationships. To enhance our understanding causality, we examined relationships between particulate matter (PM) and nitrogen oxides (NO

10.3389/fpubh.2024.1333811 article EN cc-by Frontiers in Public Health 2024-03-28

This paper starts from the structure features and fire characteristics of an atrium building, clarifies importance mechanical smoke extraction system. The disadvantages China's code about control system design in are analyzed. influencing factors removal efficiency is studied this including evacuation quantity, shape coefficient, exhaust fan start-up time heat release rate.The future research direction put forward according to conclusion.

10.1016/j.proeng.2013.02.176 article EN Procedia Engineering 2013-01-01

To develop a SARS-CoV-2 antigen detection management system for Chinese residents under community grid management, which is supported by "health information technology" and "neural network image recognition", so as to give full play the advantages of "grid management". This applied normalized prevention control COVID-19 epidemic. The model recognition algorithm was built based on deep learning convolution neural (CNN) artificial intelligence algorithm. improved Canny edge used monitor locate...

10.1016/j.jrras.2023.100563 article EN cc-by-nc-nd Journal of Radiation Research and Applied Sciences 2023-03-21

Objective College Students’ sleep quality and daytime dysfunction have become worse since the COVID-19 outbreak, purpose of this study was to explore relationship between among college students during (Corona Virus Disease 2019) period. Methods This research adopts form cluster random sampling online questionnaires. From April 5 16 in 2022, questionnaires are distributed various universities Fujian Province, China general information questionnaire PSQI scale used for investigation. SPSS26.0...

10.3389/fpubh.2023.1253834 article EN cc-by Frontiers in Public Health 2023-11-10

There are two kinds of high temperature superconducting motor (HTS) according to the angle superconductor's shape, one with bulk and other tapes. Using tapes, HTS motors, whose magnets located in rotor, have been researched by many researchers institutes. This paper research a novel structure that coils placed slots stator made ferromagnetic materials. researches magnetic field distribution coil teeth stator. The electromagnetic under influence rotating material is presented firstly. Then,...

10.1109/tasc.2011.2105451 article EN IEEE Transactions on Applied Superconductivity 2011-05-09
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