Fakulta strojního inženýrství
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Recent Submissions
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Inhalers and nebulizers: basic principles and preliminary measurements
(E D P SCIENCES, 2017-11-21)Inhalers are hand-held devices which are used for administration of therapeutic aerosols via inhalation. Nebulizers are larger devices serving for home and hospital care using inhaled medication. This contribution describes ... -
Variations of flow in human airways as a consequence of lung diseases
(EDP Sciences, 2018-06-04)The efficiency of drug delivery administered by inhalation depends, among other factors, such as size and shape of aerosol particles, significantly also on the flow in the airways. As many lung diseases change both the ... -
Importance of the experimental investigation of a concasting technology
(2018-04-20)The solidification and cooling of a continuously cast billet, slab cylinder, generally of a concasting and the simultaneous heating of the mold is a very complicated problem of three-dimensional (3D) transient heat and ... -
Numerical computation of the damping and stiffness coefficients of the classical and magnetorheological squeeze film damper
(EDP Sciences, 2018-03-14)Technological solution, frequently used to suppress vibrations in rotating machines, consists in adding damping devices between the rotor and its frame. This is enabled by dampers working on the principle of a squeezing ... -
Impact of measurable physical phenomena on contact thermal comfort
(EDP Sciences, 2017-05-12)Cabin HVAC (Heating Ventilation and Air-conditioning) systems have become an essential part of personal vehicles as demands for comfortable transport are still rising. In fact, 85 % of the car trips in Europe are shorter ... -
Electro-mechanical analysis of a multilayer piezoelectric cantilever energy harvester upon harmonic vibrations
(EDP Sciences, 2018-10-05)This paper addresses an important issue of the individual layer thickness influence in a multilayer piezo composite on electro-mechanical energy conversion. The use of energy harvesting systems seems to be very promising ... -
Influence of process parameters of printing on mechanical properties of plastic parts produced by FDM 3D printing technology
(EDP Sciences, 2018-11-26)Fused Deposition Modelling (FDM) is a fast-growing 3D printing technology. This technology expands rapidly even in households. Most users set print parameters only according to their own experience, regardless of the final ... -
Energy harvesting from passing train as source of energy for autonomous trackside objects
(EDP Sciences, 2018-10-10)This paper deals with an energy harvesting review and analysis of an ambient mechanical energy on a trackside during a passing of a train. Trains provide very high level of vibration and deformation which could be converted ... -
Prediction of position-dependent stability lobes based on reduced virtual model
(EDP Sciences, 2018-10-10)The stability of a machining process is directly affected by the dynamic response between the tool and the workpiece. However, as the tool moves along the path, the dynamic stiffness of the machine tool changes. To determine ... -
Experimental evaluation of Tusi couple based energy harvester for scavenging power from human motion
(EDP Sciences, 2018-10-10)This paper deals with the experimental performance evaluation of the prototype of a novel inertial energy harvester based on Tusi couple mechanism. The harvester was developed as an autonomous power source for environments ... -
Verified nonlinear model of piezoelectric energy harvester
(EDP Sciences, 2018-10-10)Energy harvesting is an important topic today. Complex monitoring systems with many nodes need energy sources and vibration energy harvesters (VEHs) could be one type of them. Mathematical model of the VEH is necessary ... -
Internal flow characteristics in scaled pressure-swirl atomizer
(Technical University Liberec, 2018-06-04)Pressure-swirl atomizers are used in a wide range of industrial applications, e.g.: combustion, cooling, painting, food processing etc. Their spray characteristics are closely linked to the internal flow which predetermines ... -
Influence of temperature on the production and size distribution of fine particles released from beech wood samples
(2018-05-23)This study deals with laboratory investigation of fine particulate matter production over controlled heating of beech wood samples in the atmosphere with 21% of oxygen. From carried out measurements follow that majority ... -
Manipulation of the swirling flow instability in hydraulic turbine diffuser by different methods of water injection
(EDP Sciences, 2018-06-04)Vortex rope, which induces substantial pressure pulsations, arises in the draft tube (diffuser) of Francis turbine for off-design operating conditions. Present paper focuses on mitigation of those pulsations using active ... -
The magnetic circuit dynamics of a magnetorheological valve with a permanent magnet
(EDP Sciences, 2020-10-14)The magnetorheological (MR) damper uses magnetorheological fluid which, when subjected to magnetic stimuli, generates an increase of damping forces. A significant problem of these dampers is their poor failsafe ability due ... -
Effect of multiple liquid inlets on mass transfer in rotating packed beds
(EDP Sciences, 2020-11-18)This study deals with optimalization of rotating packed bed design using computational fluid dynamics approach. Comparison of three variants of liquid distributor were performed on 2D geometry. Turbulence was modelled using ... -
Characterization of aerosol nebulized by Aerogen Solo mesh nebulizer
(EDP Sciences, 2020-11-18)Nebulizers are commonly used devices for inhalation treatment of various disorders. There are three main categories of medical nebulization technology: jet nebulizers, ultrasound nebulizer, and mesh nebulizer. The mesh ... -
Flow Behaviour of Inhaled Fibres – Equations of Motion and Preliminary Results of Real Trajectories Recorded by a High-Speed Camera
(EDP Sciences, 2020-11-18)The ability to precisely predict the fate of inhaled fibres is important for toxicologists as well as for pharmaceutists struggling to utilize fibres as carriers of a medication. However, the complexity of fibre movement ... -
Sprung mass positioning by semi-actively controlled damper
(EDP Sciences, 2020-10-14)Recently, the intensive wear of rails, especially in curves of small radii and at switches, has been studied. The wear is caused by the high lateral force peak of the wheel against the rail when entering the curves. An ... -
Job Shop Scheduling Problem Optimization by Means of Graph-Based Algorithm
(MDPI, 2021-02-22)In this paper we introduce the draft of a new graph-based algorithm for optimization of scheduling problems. Our algorithm is based on the Generalized Lifelong Planning A* algorithm, which is usually used for path planning ...