Zheng Ma

ORCID: 0000-0003-3005-0407
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About
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Research Areas
  • Nutritional Studies and Diet
  • Advanced Machining and Optimization Techniques
  • Advanced machining processes and optimization
  • Metal Forming Simulation Techniques
  • Rock Mechanics and Modeling
  • Sperm and Testicular Function
  • Landslides and related hazards
  • Advanced Surface Polishing Techniques
  • Tribology and Wear Analysis
  • Metallurgy and Material Forming
  • Urological Disorders and Treatments
  • Photonic Crystals and Applications
  • Nutrition and Health in Aging
  • Enhanced Oil Recovery Techniques
  • Bioinformatics and Genomic Networks
  • Endometrial and Cervical Cancer Treatments
  • Congenital Diaphragmatic Hernia Studies
  • Global Cancer Incidence and Screening
  • Healthcare Decision-Making and Restraints
  • Non-Invasive Vital Sign Monitoring
  • Geotechnical Engineering and Soil Stabilization
  • Prostate Cancer Treatment and Research
  • Cerebral Palsy and Movement Disorders
  • Prosthetics and Rehabilitation Robotics
  • Chalcogenide Semiconductor Thin Films

China Medical University
2024-2025

Soochow University
2024

Shanghai Jiao Tong University
2021-2024

Shandong Academy of Agricultural Sciences
2023

Ministry of Agriculture & Farmers Welfare
2023

Cangzhou Central Hospital
2023

Tianjin Medical University
2023

Liaoning Technical University
2022

Shanghai Sixth People's Hospital
2022

North China University of Science and Technology
2021

Designs with adjustable gradient modulus have become necessary for applications special demands such as diabetic insole, in which the contact stress between foot and insole is a critical factor ulcers development. However, since adjustment of elastic on certain regions can hardly be achieved via materials selection, porous structural unit varying porosity becomes feasible way. Therefore, units associated effective employed to construct insoles by 3D printing manufacturing technology. This...

10.1016/j.ijlmm.2018.10.003 article EN cc-by-nc-nd International Journal of Lightweight Materials and Manufacture 2018-10-26

The current study is designed to examine long-term trends by histologic types of testis cancer in Connecticut. A regression model was used identify age, period, or cohort as determinants the time-trend on cancer. results from this descriptive epidemiologic show that overall age-adjusted incidence rate has increased 3.5-fold Connecticut during past nearly 60 years registration. rates for seminoma and nonseminoma have been increasing since mid-1950s increase a similar manner those aged 15 49....

10.1002/(sici)1097-0215(19960315)65:6<723::aid-ijc2>3.0.co;2-0 article EN International Journal of Cancer 1996-03-15

Adenocarcinoma of the uterine cervix has been reported to be increasing among young white women and earlier studies suggest a birth cohort pattern for observed increase. No study, however, examined time trends adenocarcinoma by cohort. Using Surveillance, Epidemiology, End Results (SEER) data through 1990, current study is designed examine invasive An age-period-cohort model was fitted annual age-specific rates identify components penod as determinants trends. The results from this clearly...

10.1093/ije/25.2.252 article EN International Journal of Epidemiology 1996-01-01

Extensive muscle atrophy is a common occurrence in orthopaedics patients who are bedridden or immobilized. The incidence higher intensive care unit (ICU) inpatients. There still controversy about how to use neuromuscular electrical stimulation (NMES) ICU patients. We aim compare the effectiveness and safety of NMES prevent without nerve injury.ICU central peripheral injury were randomized into experimental group I (Exp I: active passive activity training (APAT) + treatment on gastrocnemius...

10.1186/s12891-022-05739-2 article EN cc-by BMC Musculoskeletal Disorders 2022-08-16

Air pollution and gut microbial abundance (GMA) are both closely related with asthma incidence. This study aims to explore significant interact on the risk of incident in adult exist between GMA PM2.5 exposure based a prospective cohort UK Biobank. Polygenic score was calculated using 19 distinct single nucleotide polymorphisms. predicted validated Land Use Regression model. Incident identified by linking medical encounters or first occurrence source. Cox proportional hazards regression...

10.1016/j.ecoenv.2025.117848 article EN cc-by-nc Ecotoxicology and Environmental Safety 2025-02-01

Based on the Gurson-Tvergaard-Needleman (GTN) damage model, evolution and ductile fracture of 7075 aluminum alloy sheets during tensile process were predicted. First, true stress–strain curve micro morphology at 310 °C∼460 °C obtained using ultra-high temperature confocal microscope with compression functions, characteristics position specimen observed by Scanning Electron Microscope (SEM). Then, finite element reverse calibration method, identification method GTN parameters under high was...

10.1016/j.jmrt.2021.11.153 article EN cc-by-nc-nd Journal of Materials Research and Technology 2021-12-06

To solve the long-term instability problem of engineering project in seasonal frozen region, we carried out freeze-thaw (F-T) cycle experiments shale under different F-T temperatures and numbers cycles, nuclear magnetic resonance (NMR), triaxial compression creep to study mesoscopic damage evolution characteristics rock. The experimental results show that with increasing number cycles decreasing freezing temperature, deformation steady-state rate increased gradually, while strength decreased...

10.1016/j.jmrt.2022.05.070 article EN cc-by-nc-nd Journal of Materials Research and Technology 2022-05-17

Objectives Our aim was to determine whether emergency physicians (EPs) felt their standard patient evaluation practice modified by two non-private clinical encounters: hallway encounters and during which a companion present. Methods We administered an iteratively developed cross-sectional survey at annual national professional meeting. used logistic regression compare relationships among predictors of interest. Results 409 EPs completed the survey. deviated from history-taking when...

10.1136/emermed-2017-207119 article EN cc-by-nc Emergency Medicine Journal 2018-02-03

Abstract A wide‐band reflective polarizer from glassy siloxane cyclic side‐chain liquid crystals with stable optical properties was developed. The pitch gradient that formed first stored by rapid cooling, which, preventing the crystallization of materials, a very easy way keeping molecular arrangement. Then, polymer network through UV‐initiated chain crosslinking photopolymerizable monomers in further stabilized cholesteric structure former cooling. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci,

10.1002/app.26561 article EN Journal of Applied Polymer Science 2007-05-16

The stress strain curve of 7075 aluminum alloy in the temperature range 310 °C to 410 was obtained by Gleeble-3800. By Nakazima test, isothermal thermoforming limit diagrams at different deformation temperatures and stamping speeds were acquired. Moreover, parameters automotive S-rail hot process optimized GA-BP neural network. results show that forming increases as speed increase. predicted optimal for S-rails network are: is 50 mm/s, friction coefficient between die blank 0.1, holder force...

10.3390/ma14195485 article EN Materials 2021-09-22

Abstract Background Evidence has shown that the individual metrics in Life’s Essential 8 (LE8), an updated cardiovascular health (CVH) concept proposed by American Heart Association, play a role development of inflammatory bowel disease (IBD). However, epidemiological evidence on overall LE8 IBD risk remains limited. We aimed to assess longitudinal associations LE8-defined CVH and risks its subtypes, ulcerative colitis (UC) Crohn’s (CD). also tested whether genetic susceptibility could...

10.1186/s12966-024-01617-3 article EN cc-by International Journal of Behavioral Nutrition and Physical Activity 2024-07-02

In view of requirements low-resource consumption and high-efficiency in real-time Ambulatory Electrocardiograph Diagnosis (AED) applications, a novel Cardiac Arrhythmias Detection (CAD) algorithm is proposed. This consists three core modules: an automatic-learning machine that models diagnostic criteria grades the emergency events cardiac arrhythmias by studying morphological characteristics ECG signals experiential knowledge cardiologists; rhythm classifier recognizes classifies heart...

10.1142/s0218001417580046 article EN International Journal of Pattern Recognition and Artificial Intelligence 2017-03-09

Background: Accelerated biological ageing has been linked to the development of chronic diseases. However, evidence associations between accelerated and risks non-alcoholic fatty liver disease (NAFLD) cirrhosis are still lacking. We aimed assess acceleration (BAA), genetic susceptibility, NAFLD cirrhosis, as well BAA with life expectancy in individuals different NAFLD/cirrhosis conditions.Methods: A total 277,057 participants free from UK Biobank were included this cohort study. Biological...

10.2139/ssrn.4731175 preprint EN 2024-01-01

<title>Abstract</title> Carbon fiber reinforced polymer (CFRP) materials have gained significant attention in the machining industry due to their exceptional strength-to-weight ratio and vibration characteristics. In poor rigidity tool system, such as plunge milling, deep drilling boring, large overhanging shaft increases requirement of chatter stability. this study, a solution carbon was proposed for system. The characteristic model established by theoretical calculation, FE analysis modal...

10.21203/rs.3.rs-4185094/v1 preprint EN cc-by Research Square (Research Square) 2024-04-05

A prediction model based on artificial intelligence machine learning is constructed to follow the change of thyroid nodule volume, evaluate clinical effect metformin type 2 diabetes mellitus (T2DM). total 80 newly admitted patients with T2DM complicated nodules were randomly divided into a training set and verification set. The minimal redundancy maximal relevance least absolute shrinkage selection operator used screen optimal features construct radiomics model. Machine was carried out in...

10.1016/j.jrras.2023.100566 article EN cc-by-nc-nd Journal of Radiation Research and Applied Sciences 2023-03-28

To evaluate the diagnosis of chest pain with foregut symptoms in Chinese patients.Esophageal manometric studies, 24-h introesophageal pH monitoring and electrocardiograms (Holter electrocardiography) were performed 61 patients pain.Thirty-nine diagnosed non-specific esophageal motility disorders (29 abnormal gastroesophageal reflux eight myocardial ischemia). Five had diffuse spasm esophagus plus (two concomitant ischemia), one patient was nutcracker esophagus.The intra-esophageal Holter...

10.3748/wjg.15.742 article EN cc-by-nc World Journal of Gastroenterology 2009-01-01
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