147 hasil untuk "Tianshu Liu"
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Artikel Jurnal
Evolutionary understanding of airfoil lift
Abstract This review attempts to elucidate the physical origin of aerodynamic lift of an airfoil using simple formulations and notations, particularly focusing on the critical effect of the fluid viscosity. The evolutionary development of the lift problem of a flat-plate airfoil is reviewed as a…
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Artikel Jurnal
Can lift be generated in a steady inviscid flow?
Abstract This paper presents a critical evaluation of the physical aspects of lift generation to prove that no lift can be generated in a steady inviscid flow. Hence, the answer to the recurring question in the paper title is negative. In other words, the fluid viscosity is necessary in lift…
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Artikel Jurnal
Reconstruction of skin friction topology in complex separated flows
Abstract This paper describes a theoretical method for reconstruction of the skin friction topology in complex separated flows, which is developed based on the exact relation between skin friction and surface pressure through the boundary enstrophy flux (BEF). The key of this method is that a skin…
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Artikel Jurnal
OpenOpticalFlow: An Open Source Program for Extraction of Velocity Fields from Flow Visualization Images
This paper describes OpenOpticalFlow, an open source optical flow program in Matlab for extraction of high-resolution velocity fields from various flow visualization images. This program is a useful tool for researchers to use the optical flow method in various flow measurements. The principles of…
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Artikel Jurnal
Near-wall Lamb vector and its temporal–spatial evolution in the viscous sublayer of wall-bounded flows
This paper gives the relation between the Lamb vector and fundamental surface quantities in the vicinity of a no-slip flat wall using the Taylor-series expansion solution of the Navier–Stokes equations for incompressible viscous flow. The wall-normal component of the Lamb vector is dominated by the…
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Artikel Jurnal
Near-wall Taylor-series expansion solution for compressible Navier–Stokes–Fourier system
This paper presents the Taylor-series expansion solution of near-wall velocity and temperature for a compressible Navier–Stokes–Fourier system with a no-slip curved boundary surface. When the shear viscosity is a single-valued function of local fluid temperature, the near-wall velocity and…
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Artikel Jurnal
Generalized boundary dilatation flux on a flexible wall
In this paper, by applying theoretical method to the governing equations of compressible viscous flow, we derive the theoretical formula of the boundary dilatation flux (BDF) on a flexible wall, which generalizes the most recent work of Mao et al. (Acta Mechanica Sinica 38 (2022) 321583) for a…
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Artikel Jurnal
Human blood cell traits and sporadic lymphangioleiomyomatosis: results from mediation joint multi-omics and eQTL Mendelian randomization analysis
Abstract Background To investigate the genetic causality between Human blood cell (HBC) traits and sporadic lymphangioleiomyomatosis (sLAM) by mediation joint multi-omics and eQTL Mendelian randomization analysis. Methods Quality control processes were followed to select eligible instrumental…
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Artikel Jurnal
Correlation functions of symmetric orbifold from AdS3 string theory
Abstract The paper examines correspondence among correlation functions of symmetric orbifold and string theory on AdS3 described by sl(2) Wess-Zumino-Novikov-Witten (WZNW) model. We start by writing down n-point function of twist operators in the symmetric orbifold in terms of the data of effective…
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Artikel Jurnal
Cardiovascular Outcomes in the Patients With Colorectal Cancer: A Multi-Registry-Based Cohort Study of 197,699 Cases in the Real World
PurposeWe aimed to investigate the mortality patterns and quantitatively assess the risks of cardiovascular death (CVD) in patients with colorectal cancer (CRC). We also established a competing-risk model to predict the probability of CVD for patients with CRC.Patients and MethodsPatients with CRC…
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Artikel Jurnal
OpenOpticalFlow_PIV: An Open Source Program Integrating Optical Flow Method with Cross- Correlation Method for Particle Image Velocimetry
This paper describes OpenOpticalFlow_PIV, an open source Matlab program integrating the optical flow method with the cross-correlation method for extraction of high-resolution velocity fields from particle images with large displacements. This hybrid method provides an additional tool to process…
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Artikel Jurnal
Chylothorax and chylopericardial tamponade following lobectomy and lymphadenectomy: a rare presentation
Abstract Background Although postoperative chylothorax following lung cancer surgery is rare, it is a recognized complication in 0.25–3% of patients. However, cases of cardiac tamponade caused by chylopericardium after lung cancer surgery are extremely rare. Case presentation We describe hitherto…
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Artikel Jurnal
Statistical fluid dynamics equation and its reduction to the Navier–Stokes equations in macroscopic form
In this work, the statistical fluid dynamics equation for the molecule number density function is derived by using the Taylor-series expansion as an alternative theoretical modeling of the collision integral in the Boltzmann equation. Formally, its macroscopic forms for the fluid density and…
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Artikel Jurnal
Establishment of a Prognostic Signature of Stromal/Immune-Related Genes for Gastric Adenocarcinoma Based on ESTIMATE Algorithm
Different subtypes of gastric cancer differentially respond to immune checkpoint inhibitors (ICI). This study aimed to investigate whether the Estimation of STromal and Immune cells in Malignant Tumor tissues using Expression data (ESTIMATE) algorithm is related to the classification and prognosis…
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Artikel Jurnal Teks lengkap
The Efficacy of Bevacizumab Compared with Other Targeted Drugs for Patients with Advanced NSCLC: A Meta-Analysis from 30 Randomized Controlled Clinical Trials
Background: The extent of the benefit of bevacizumab combined with chemotherapy in the treatment of advanced non-small-cell lung cancer (NSCLC) is still unclear. We performed this meta-analysis to compare the efficacy of bevacizumab with other commonly used targeted drugs for different patients…
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Artikel Jurnal Teks lengkap
The pathway of social support in enhancing adolescents’ physical fitness: The mediating roles of physical activity and self-efficacy
Purpose: Utilising Welk’s Youth Physical Activity Promotion (YPAP) model as a foundational framework, this study investigates the intricate interplay of social support, physical activity (PA), and self-efficacy in relation to physical fitness within the context of Chinese culture. The primary…
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Artikel Jurnal
Nivolumab Combined With Ipilimumab Treatment Induced Hypophysitis and Immune-Mediated Liver Injury in Advanced Esophageal Squamous Cell Carcinoma: A Case Report
Immune checkpoint inhibitors (ICIs) have transformed the treatment in malignancies because of the impact on reactivating the immune cells to kill tumor cells. Because anti-CTLA-4 antibody and anti-PD-1 antibody (or anti-PD-L1 antibody) work in different ways, they have synergistic effects when used…
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Artikel Jurnal
Familial juvenile polyposis syndrome with a de novo germline missense variant in BMPR1A gene: a case report
Abstract Background Juvenile polyposis syndrome (JPS) is a rare autosomal dominant hereditary disorder characterized by the development of multiple distinct juvenile polyps in the gastrointestinal tract with an increased risk of colorectal cancer. Germline mutations in two genes, SMAD4 and BMPR1A…
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Artikel Jurnal
Correspondences among CFTs with different W-algebra symmetry
W-algebras are constructed via quantum Hamiltonian reduction associated with a Lie algebra g and an sl(2)-embedding into g. We derive correspondences among correlation functions of theories having different W-algebras as symmetry algebras. These W-algebras are associated to the same g but distinct…
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Artikel Jurnal
Unitary and non-unitary N = 2 minimal models
Abstract The unitary N = 2 superconformal minimal models have a long history in string theory and mathematical physics, while their non-unitary (and logarithmic) cousins have recently attracted interest from mathematicians. Here, we give an efficient and uniform analysis of all these models as an…