Fluid mechanics

There are many results involving PDEs in fluid mechanics with delays and many results about asymptotic behavior to PDEs. Navier-Stokes equations with delays have been studied extensively over the last decades, for their important contributions to understanding fluid motion and turbulence.

8p vijiraiya 19-05-2025 1 1   Download

This study aims to use CFD analysis of CT scan data from the nasal cavities of a range of older Asian males to investigate the impact of geometric variations between older nasal cavities on the airflow structures and airconditioning capacity of the nasal cavity. Air flow mechanisms, heat transfer rates and humidification efficacy are analysed in order to arrive at a more precise understanding of the role of nasal geometry in the presentation of respiratory ailments.

101p runthenight07 01-03-2023 14 3   Download

The main aims of this study are to: understand the phenomena of isolated mixing regions (IMRs) in Newtonian fluids agitated in mechanically stirred vessels, in particular, the formation of core torus, using experimental studies; investigate the behavior of IMRs structures by manipulating the operating variables such as impeller rotational speed and direction, as well as geometrical variables such as impeller types and baffle location; investigate the temporal chaotic mixing using different speed modulation protocols.

94p runthenight07 01-03-2023 20 3   Download

Structures of thesis: Chapter 1 - Preliminaries; Chapter 2 - Discrete data assimilation for the three-dimentional Leray-α model; Chapter 3 - Discrete data assimilation for the three-dimentional NavierStokes-α model; Chapter 4 - Abridged continuous data assimilation for the three-dimentional simplified Bardina model; Chapter 5 - Abridged data assimilation for the three-dimentional modified Leray-α.

26p tunelove 10-06-2021 23 3   Download

Purpose of thesis: Resear h thesis on the problem: The stability and stabilization of some evolution equations appear in fluid mechanics.

27p phongtitriet000 08-08-2019 33 3   Download

N-methyl-norsalsolinol and related tetrahydroisoquinolines accumulate in the nigrostriatal system of the human brain and are increased in the cere-brospinal fluid of patients with Parkinson’s disease. We show here that 6,7-dihydroxylated tetrahydroisoquinolines such asN-methyl-norsalsolinol inhibit tyrosine hydroxylase, the key enzyme in dopamine synthesis, by imitating the mechanisms of catecholamine feedback regulation.

13p media19 06-03-2013 42 4   Download

Hypoxia and hypoxia-related genes are important factors in articular chon-drocytes during cartilage homeostasis and osteoarthritis. We have investi-gated the various apoptotic factors that show significance in synovial fluid obtained from normal and experimental osteoarthritic animal models and have evaluated the effect of hypoxia on articular chondrocyte apoptosis induced by these apoptotic factors.

11p vinaphone15 28-02-2013 39 2   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Brachial artery peak velocity variation to predict fluid responsiveness in mechanically ventilated patients...

9p coxanh_6 29-10-2011 34 2   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Prediction of fluid responsiveness using respiratory variations in left ventricular stroke area by transoesophageal echocardiographic automated border detection in mechanically ventilated patients...

9p coxanh_3 25-10-2011 41 4   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Continuously assessed right ventricular end-diastolic volume as a marker of cardiac preload and fluid responsiveness in mechanically ventilated cardiac surgical patients...

8p coxanh_2 24-10-2011 55 6   Download

Các chất rắn Ứng suất (Nd: Stress) · Sự biến dạng (Nd: Deformation) Tính tương thích (Nd: Compatibility) Sức căng hữu hạn (Nd: Finite strain) · Sức căng vi phân (Nd: Infinitesimal strain) Tính đàn hồi (Nd: Elasticity) (tuyến tính (Nd: linear)) · Tính dẻo (Nd: Plasticity) Sự uốn (Nd: Bending) · Định luật Hooke Học thuyết hư hỏng (Nd: Failure theory) Cơ học đứt gãy (Nd: Fracture mechanics)

14p ta2ikhoa3n 10-05-2011 615 58   Download

Metal cutting puts extreme demands on the tool and tool material through conditions of high forces, high contact pressures, high temperatures, and intense chemical attack by difficult to cut work materials. In addition, the tool geometry and cutting conditions in terms of sharp edges, cyclic engagement and presence of cutting fluid will add to the severity. Most often cutting tools are used close to their ultimate resistance against these loads, especially to the limiting thermal and mechanical stresses. ...

14p cuunien 20-12-2010 118 18   Download