Qinghua Chen

ORCID: 0000-0002-6117-6005
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Research Areas
  • Evaluation and Optimization Models
  • Advanced Decision-Making Techniques
  • Network Security and Intrusion Detection
  • Neural Networks and Applications
  • Cognitive Science and Education Research
  • Recommender Systems and Techniques
  • Structural Response to Dynamic Loads
  • High-Velocity Impact and Material Behavior
  • Technology Assessment and Management
  • Topic Modeling
  • Evaluation Methods in Various Fields
  • Toxic Organic Pollutants Impact
  • Energetic Materials and Combustion
  • Mining Techniques and Economics
  • Coastal wetland ecosystem dynamics
  • Safety and Risk Management
  • Polymer Science and PVC
  • Anomaly Detection Techniques and Applications
  • Shape Memory Alloy Transformations
  • biodegradable polymer synthesis and properties
  • Structural Engineering and Vibration Analysis
  • Web Data Mining and Analysis
  • Indoor and Outdoor Localization Technologies
  • Advanced Measurement and Detection Methods
  • Complex Network Analysis Techniques

Fujian Normal University
2020-2024

City University of Hong Kong
2024

Beijing Normal University
2008-2024

Shenyang Ligong University
2021-2024

Nanjing Normal University
2024

Civil Aviation University of China
2023

Wenzhou Polytechnic
2016-2023

Ministry of Ecology and Environment
2023

Qingdao Agricultural University
2017-2021

Shandong Management University
2021

By employing a MOF-templated method, we have developed highly dipersed and ultralow loading cobalt nanocatalyst, which has been applied in the oxidative functionalization of easily available cyclic amines with 2-aminoarylmethanols to ring-fused quinazolinones, core structures numerous valuable products. The catalytic transformation proceeds merits broad substrate scope, good functional group tolerance chemoselectivity, high step- atom-efficiency, use naturally abundant Co/O2 system, offers...

10.1021/acscatal.8b01366 article EN ACS Catalysis 2018-05-25

Objectives This study aims to investigate the association between Systemic Immune-Inflammation Index (SII) and development of pressure injuries (PI) in patients with chronic obstructive pulmonary disease (COPD). Additionally, a nomogram model based on SII will be constructed predict probability injury occurrence COPD. Methods A retrospective analysis was performed clinical data 844 COPD who were admitted Affiliated Hospital Guangdong Medical University June 2018 December 2019. Logistic...

10.3389/fmed.2025.1564099 article EN cc-by Frontiers in Medicine 2025-04-14

Understanding the nonlinear visco-elastic-plastic behavior and properties of PMMA thin films during nanoindentation is helpful for predicting plastic deformation thermoplastic polymer products manufacture evaluating stress to predict reliability failure their service structures. This article reports a study on via instrumented indentation testing numerical simulation determine its constitutive behavior. It found that both loading curve unloading at any depth can be generated from one tests...

10.1016/j.matdes.2020.109239 article EN cc-by-nc-nd Materials & Design 2020-10-17

In order to obtain the shockwave load simplified algorithm model for semiarmored projectile internal explosion in cabin, this research made use of AUTODYN provide a numerical modeling method cabin and verified accuracy via experiment. Internal simulation calculation was conducted on operating condition with different structural dimensions explosive loads. The space divided into noncorner central area, near‐wall two‐sided corner three‐sided area. Through regression abovementioned results, an...

10.1155/2021/7726779 article EN cc-by Shock and Vibration 2021-01-01

Nitrogen (N) is an essential nutrient for plants and a key limiting factor of crop production. However, excessive application N fertilizers the low nitrogen use efficiency (NUE) have brought in severe damage to environment. Therefore, improving NUE urgent critical reductions fertilizer pollution production cost. In present study, we investigated effects nutrition on growth yield two rice (Oryza sativa L.) cultivars, conventional Huanghuazhan indica hybrid Quanliangyou 681, which were grown...

10.3390/ijms20153674 article EN International Journal of Molecular Sciences 2019-07-26

With the popularization of network and expansion its application scope, problem abnormal traffic caused by attacks, malicious software, peaks, or device failures is becoming increasingly prominent. This not only leads to a decline in performance service quality but also may pose serious threat security. paper proposes hybrid data processing model based on deep learning for anomaly detection improve performance. First, Grey Wolf optimization algorithm improved select high-quality features,...

10.3390/electronics12183787 article EN Electronics 2023-09-07

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental contaminants that originate mainly from anthropogenic sources. PAHs have elicited much concern because they exhibit strong toxic, carcinogenic, and mutagenic properties. Agricultural soil is at risk of PAH contamination caused by atmospheric depositions, wastewater irrigation, or organic substances biowaste applied as fertilizers. The surface agricultural soils were collected Shandong in July 2015, measured for 16 US EPA...

10.13227/j.hjkx.201608199 article EN PubMed 2017-04-08

Abstract Uracil derivatives are potential nontoxic thermal stabilizers of poly(vinyl chloride) (PVC) and have a better stabilization effect. 5,6‐diamino‐1,3‐dimethyluracil (DDU) was investigated as stabilizer for PVC. The effect DDU measured by thermogravimetric analysis, aging test, recording the time color change Congo red paper (Congo test). Meanwhile, processability PVC stabilized through dynamic performance test. results showed stabilizing compared with calcium stearate (CaSt 2 ) zinc...

10.1002/app.49319 article EN Journal of Applied Polymer Science 2020-04-22

Mobile crowd sensing harnesses the data capability of individual smartphones, underpinning a variety valuable knowledge discovery, environment monitoring, and decision-making applications. It is central issue for mobile system to maximize utility collection at given cost resource consumption each smartphone. However, it particularly challenging. On one hand, from smartphone usually dependent on its context which random varies over time. other because marginal effect, decision also decisions...

10.1177/1550147716668083 article EN cc-by International Journal of Distributed Sensor Networks 2016-09-01

Compressive sensing can minimize the collection of redundant data in acquisition step. However, it requires a huge amount storage and creates tremendous computation burden due to size random measurement matrix compressive theory for big collection. The separable uses two-dimensional matrixes instead remedy complexity. In this paper, we proposed an intelligent throat polyp detection with singular value decomposition support vector machine algorithms based on vowel/a:/and/i:/voices. We...

10.1186/1687-6180-2014-6 article EN cc-by EURASIP Journal on Advances in Signal Processing 2014-01-16

Abstract With the advent of information age and continuous development big data technology, technology is widely used in medical health industry. By using industry can be collected, integrated, analyzed shared intelligently. The structure system established. It not only improve utilization rate data, but also realize a better grasp residents, thus promoting services. Based on this, this paper will analyze concept combined with characteristics explore application industry, hoping to provide...

10.1088/1742-6596/1883/1/012136 article EN Journal of Physics Conference Series 2021-04-01

Nuclear export factor chromosome region maintenance 1 (CRM1) mediated the transport of various growth-regulatory proteins and was frequently overexpressed in many hematologic solid tumors. Selinexor (KPT-330) only approved CRM1 inhibitor, but severe gastrointestinal central nervous system toxicities limited its clinical application. In this manuscript, a series novel second-generation inhibitors were designed, which

10.1021/acs.jmedchem.4c02169 article EN Journal of Medicinal Chemistry 2024-11-07
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