Yongquan Liu
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View article: Research on Carbon Sink Effect of Marine Shellfish and Algae in China
Research on Carbon Sink Effect of Marine Shellfish and Algae in China Open
Global warming has increasingly become a widespread concern of the international community, and one of the key approaches to achieving carbon neutrality goals lies in the carbon sequestration capacity of oceans. Therefore, scientifically a…
View article: Giant elastic-wave asymmetry in a linear passive circulator
Giant elastic-wave asymmetry in a linear passive circulator Open
View article: Prevalence and Risk Factors of Lower Extremity Musculoskeletal Disorders Among Occupational Groups in Key Industries - China, 2018-2023.
Prevalence and Risk Factors of Lower Extremity Musculoskeletal Disorders Among Occupational Groups in Key Industries - China, 2018-2023. Open
This study investigated the occurrence of LE-MSDs in key industries in China and its possible risk factors to provide big data support for preventing and controlling such diseases in these industries.
View article: The 2024 phononic crystals roadmap
The 2024 phononic crystals roadmap Open
Over the past 3 decades, phononic crystals experienced revolutionary development for understanding and utilizing mechanical waves by exploring interaction between mechanical waves and structures. With the significant advances in manufactur…
View article: Separating, purifying and decoding elastic waves by mimicking a cochlea on a thin plate
Separating, purifying and decoding elastic waves by mimicking a cochlea on a thin plate Open
A human cochlea is capable of continuously separating and amplifying sound of different frequencies to specific positions from 20 to 20,000 Hz, which makes it a high-resolution living sensor. The realization of cochlea-like structure for e…
View article: Strategies for Digital Preservation and Transmission of Intangible Cultural Heritage Using CAD
Strategies for Digital Preservation and Transmission of Intangible Cultural Heritage Using CAD Open
View article: Active encoding of flexural wave with non-diffractive Talbot effect
Active encoding of flexural wave with non-diffractive Talbot effect Open
In this paper, a flexural Mikaelian lens in thin plate is designed by using conformation transformation. The propagation characteristics of flexural waves in the lens are investigated through rays trajectory equation, simulation analyses, …
View article: Giant elastic-wave asymmetry in a linear passive circulator
Giant elastic-wave asymmetry in a linear passive circulator Open
Nonreciprocal transmission of waves is highly desirable for the transport and redistribution of energy. However, building a non-reciprocal system to break time-reversal symmetry is relatively difficult because it tends to work under string…
View article: The effect of combination of pre-ageing and regression heat treatment on the natural aging behavior in Al–Zn–Mg–Cu alloys correlated with precipitate dissolving ratio
The effect of combination of pre-ageing and regression heat treatment on the natural aging behavior in Al–Zn–Mg–Cu alloys correlated with precipitate dissolving ratio Open
Al–Zn–Mg–Cu alloys have remarkable plasticity and aging-hardening potential, while natural aging during storage and transportation dramatically increases the strength of the alloys and deteriorates the formability by generating massive hig…
View article: A Numerical Investigation of Film Cooling under the Effects of Different Adverse Pressure Gradients
A Numerical Investigation of Film Cooling under the Effects of Different Adverse Pressure Gradients Open
Film cooling needs to be applied to serpentine nozzles due to an increase in thermal load. Adverse pressure gradients (APGs) near the upper wall of such nozzles hinder the forward flow of the coolant, and they may even induce a recirculati…
View article: Risk Prediction and Risk Factor Analysis in Patients with Chronic Obstructive Pulmonary Disease Complicated with Heart Failure under Lightweight Deep Learning Model and Echocardiography
Risk Prediction and Risk Factor Analysis in Patients with Chronic Obstructive Pulmonary Disease Complicated with Heart Failure under Lightweight Deep Learning Model and Echocardiography Open
This work was developed to explore the risk prediction and risk factor analysis of chronic obstructive pulmonary disease (COPD) patients with heart failure (HF) based on a lightweight deep learning (LWDL) model and echocardiography. A tota…
View article: Elastic wave imaging with Maxwell's fish-eye lens
Elastic wave imaging with Maxwell's fish-eye lens Open
In this paper, a modified Maxwell's fish-eye lens is proposed in order to achieve super-resolution imaging. This lens possesses elevated refractive index profile compared with the traditional Maxwell's fish-eye lens. The refractive index p…
View article: Reflection on Improving the Efficiency of Standardized Training for Resident Physicians in Respiratory Medicine
Reflection on Improving the Efficiency of Standardized Training for Resident Physicians in Respiratory Medicine Open
Significant achievements have been made in the standardized training of resident physicians in China, but currently, there are still problems with weak teaching staff, rigid teaching methods, monotonous teaching content, and one-sided asse…
View article: Risk and related factors of elbow musculoskeletal diseases: a nationwide cross-sectional survey in China
Risk and related factors of elbow musculoskeletal diseases: a nationwide cross-sectional survey in China Open
Objectives Although studies have shown that work-related musculoskeletal disorders (WMSDs) are common and continue to be a major source of disability and work time loss, there are few reports about elbow WMSDs. The aim of this study was to…
View article: Jiawei Yuping Fengsan Granules Relieve Secondary Lung Injury in Ischemic Stroke
Jiawei Yuping Fengsan Granules Relieve Secondary Lung Injury in Ischemic Stroke Open
To observe whether pre-treatment with Jiawei Yuping Fengsan granules can alleviate secondary lung injury in ischemic stroke. 30 SPF grade male SD rats were randomly divided into three groups: sham surgery group (sham group), cerebral ische…
View article: Perspectives for extraordinary elastic-wave control in non-Hermitian meta-structures
Perspectives for extraordinary elastic-wave control in non-Hermitian meta-structures Open
Meta-structures, including metamaterials and metasurfaces, possess remarkable physical properties beyond those observed in natural materials and thus have exhibited unique wave manipulation abilities ranging from quantum to classical trans…
View article: Flexural wave illusion on a curved plate
Flexural wave illusion on a curved plate Open
Manipulating elastic waves using a transformation approach is challenging due to the complex constitutive relationship. However, for flexural waves, approximated as scalar waves, two straightforward approaches emerge based on geometric cur…
View article: Active Encoding of Flexural Wave with Non-Diffractive Talbot Effect
Active Encoding of Flexural Wave with Non-Diffractive Talbot Effect Open
This study employs the theory of conformal transformation to devise a Mikaelian lens for flexural waves manipulation. We investigate the propagation patterns of flexural waves in the lens under scenarios of plane wave and point source inci…
View article: Measurement of the full wave field on a shell using a single-point laser Doppler vibrometer
Measurement of the full wave field on a shell using a single-point laser Doppler vibrometer Open
To experimentally measure the complicated vibration and wave characteristics of a shell, a 3D scanning laser Doppler vibrometer is a competent but costly instrument due to the requirement of exactly aligning each point when scanning the sh…
View article: Flexural wave illusion on a curved plate
Flexural wave illusion on a curved plate Open
Manipulating elastic waves using a transformation approach is challenging due to the complex constitutive relationship. However, for flexural waves, approximated as scalar waves, two straightforward approaches emerge based on geometric cur…
View article: Reflection on Standardized Training for Resident Physicians in Cardiology
Reflection on Standardized Training for Resident Physicians in Cardiology Open
The standardized training of residents is an important part of Graduate medical education for medical students after graduation. The Affiliated Hospital of Weifang Medical University, as a Teaching hospital approved as a training base, has…
View article: Epidemiological study of work-related musculoskeletal disorders and related risk factors for the footwear industry in China
Epidemiological study of work-related musculoskeletal disorders and related risk factors for the footwear industry in China Open
Object: To explore the prevalence and risk factors of work-related musculoskeletal disorders (WMSDs) among footwear industry workers in China, thereby providing a scientific basis for implementing health interventions. Methods Following a …
View article: The prevalence and risk factors of work related musculoskeletal disorders among electronics manufacturing workers: a cross-sectional analytical study in China
The prevalence and risk factors of work related musculoskeletal disorders among electronics manufacturing workers: a cross-sectional analytical study in China Open
Objectives To describe the prevalence of self-reported musculoskeletal disorders among workers in the electronics manufacturing industry and to investigate the relations between work-related musculoskeletal disorders (WMSDs) and work-relat…
View article: Prevalence status and associated factors of wrist postural injury in the Chinese occupational population
Prevalence status and associated factors of wrist postural injury in the Chinese occupational population Open
Objective This study investigated the prevalence of wrist injuries in 15 industries and different types of work in China. Study on the associated factors of wrist injuries provides a scientific basis for prevention and treatment of wrist d…
View article: Shoulder work-related musculoskeletal disorders and related factors of workers in 15 industries of China: a cross-sectional study
Shoulder work-related musculoskeletal disorders and related factors of workers in 15 industries of China: a cross-sectional study Open
View article: Optimization of Thermo-Mechanical Fatigue Life for Eutectic Al–Si Alloy by the Ultrasonic Melt Treatment
Optimization of Thermo-Mechanical Fatigue Life for Eutectic Al–Si Alloy by the Ultrasonic Melt Treatment Open
The eutectic cast Al–Si alloys with excellent high-temperature and casting performance are widely used in engine pistons. During frequent starts and stops, the thermo-mechanical fatigue (TMF) is the most important failure cause. Ultrasonic…
View article: The Application of Internet + PBL Teaching in the Network Teaching of Standardized Training of Internal Medicine Residents
The Application of Internet + PBL Teaching in the Network Teaching of Standardized Training of Internal Medicine Residents Open
Objective: To explore the application of Internet + PBL teaching in the standardized training of internal medicine residents in Colleges and Universities under the COVID-19 epidemic. Methods: 20 interns were randomly selected as the experi…
View article: Prevalence and risk factors analysis for low back pain among occupational groups in key industries of China
Prevalence and risk factors analysis for low back pain among occupational groups in key industries of China Open
View article: Realization of ultrathin waveguides by elastic metagratings
Realization of ultrathin waveguides by elastic metagratings Open
View article: SSVEP-Based Brain Computer Interface Controlled Soft Robotic Glove for Post-Stroke Hand Function Rehabilitation
SSVEP-Based Brain Computer Interface Controlled Soft Robotic Glove for Post-Stroke Hand Function Rehabilitation Open
Soft robotic glove with brain computer interfaces (BCI) control has been used for post-stroke hand function rehabilitation. Motor imagery (MI) based BCI with robotic aided devices has been demonstrated as an effective neural rehabilitation…