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We are using life-size mannequins within an education subjects, e.g. “Medical devices” for a demonstration of basic principles of modern clinical devices such as mechanical lung ventilator. Limitation of many simulators is uniformity of its outputs for same input parameters. This paper describes variability of the vital signs of the mannequin when the same scenario was used for different base patients...
Impact Financing funding models, namely Social Impact Bond and Impact Investing, are applied worldwide. However, they do not receive enough attention in the Czech Republic. The present study analyzes closely these methods, describes their functional principles and practices and illustrates them with process maps. Importantly, it is contextualized within the Czech conditions. The study includes an...
In order to improve the effect and the efficiency of the mechanical ventilation in grain storage, a context aware method is proposed. The context meta-model is defined which builds the basis for context modeling. The context model for mechanical ventilation in grain storage is built, which had full consideration of the ventilation purpose and the lifecycle of grain storage. The feasibility and the...
We consider the problem of estimating the occupancy level in buildings using indirect information such as CO2 concentrations and ventilation levels. We assume that one of the rooms is temporarily equipped with a device measuring the occupancy. Using the collected data, we identify a gray-box model whose parameters carry information about the structural characteristics of the room. Exploiting the knowledge...
The objective was to study the behavior of the subsystems of life-size simulator HPS during spontaneous and assisted ventilation. Demonstration of the assisted ventilation on the mannequin with the use of lung simulator ASL5000 is described. The scenario for a mannequin was designed to simulate an apnea and technical realization of connection of the mannequin and lung simulator is also described....
Laboratory exercises are a basic premise of quality experience in the practical education of biomedical engineering specialists and physicians. An increasing number of students and reorganized curricula require innovative approaches to laboratory experiments. Four laboratory exercises have been defined and added into the syllabus of the course, “Models in Biomedical Engineering”. They include system...
In recent years, our group has developed a comprehensive cardiopulmonary (CP) model that comprises the heart, systemic and pulmonary circulations, lung mechanics and gas exchange, tissue metabolism, and cardiovascular and respiratory control mechanisms. In this paper, we analyze the response of the model to hypercapnic conditions and hence focus on the chemoreflex control mechanism. Particularly,...
We present our investigation that could increase the safety of infrastructures by preventing biological and chemical attacks from terrorists. We surveyed the buildings of our campus using infrared (IR) technology then assessed for faults and cavities. These energy leaks can be used as prime points in which terrorists inject the lethal chemicals into the buildings. Also if a terrorist is biologically...
In order to forecast the bearing vibration of large-scale centrifugal ventilator, increase its operating safety and economy, the kernel algorithm of Statistical Learning Theory (SLT), Support Vector Machine (SVM) is applied to set up a forecast model of large-scale centrifugal ventilator bearing vibration. The model based on SVAR is compared with the model based-on Autoregressive by a case. The result...
Series of compression waves and expansion waves caused by EMUs entering tennels at high speed will give rise to a series of tunnel aerodynamic effects: excessive pressure change will not only has effect on the fatigue life of EMU bodies and subsidiary structures in tunnels but also endangers the riding comfort of passengers. In addition, tunnel micro-pressure waves can even cause noise which effect...
Mine fire not only brings about great loss of coal resources and damage the whole mining system, but also causes the massive personnel casualty. Based on the air distribution request of the mine ventilation network, solves airflow quantitative optimizing control to the mine ventilation system network's nonlinear programming mathematical model using harmony annealing search, fuses the dynamic perturbation...
Both medium and strong intensity inflow events into the Baltic Sea contribute to the ventilation of the Baltic Sea deep water. The present study is an attempt to perform realistic model simulations of the Baltic Sea in order to quantify natural mixing of dense bottom flows. The numerical simulations are carried out using the General Estuarine Transport Model (GETM) for a twelve year period from the...
Radial Basis Function(RBF) is used to identify the model of mine ventilator, frequency control system is introduced to control the speed of ventilator, and traditional control strategy used PID is replaced by FNN. The MATLAB simulation results show that the ventilator modeling by RBF neural network can better reflect its nonlinear characteristic, the speed of ventilator controlled by FNN changed with...
A versatile software for dynamic generation of physiological model systems is proposed. Via a graphical user interface the user can choose and combine models of varying abstraction level and complexity from the following three model families: respiratory mechanics, gas exchange and cardiovascular dynamics. Tests of different simulation runs showed results and model delay times consistent with human...
In the field of healthcare building design, there are two significant focuses on Eco-effective design (EED) and Evidence-based design (EBD). Regarding the indoor air quality for occupants' health, EBD may conflict with EED goals. This research proposed a Healthcare and Sustainable Parametric Method (HSPM) incorporating Building Information Modeling (BIM) and then used this method to a design project...
Special design flow calibrators are used for calibration of mechanical ventilators and lung simulators. It is necessary that these calibrators are connected to traceability chain via national standards. Mathematical models explaining the respiratory mechanics should be analyzed carefully before designing such a reference system for the purpose of calibration of flow calibrators. The purpose is to...
In this study, closed loop fuzzy control of tidal volume parameter which is controlled in mechanical ventilators used at intensive care units (ICU) and veterinary faculties for experimental studies was implemented. Because of the fact that clinicians may not be in vicinity of the patients, tidal volume which is one of the most followed parameters for patients was controlled with closed loop fuzzy...
A new energy-saving type of air-conditioning named large and small zone ventilation for loom workshop is proposed in authors' preliminary work. There are four factors which effect greatest large and small zone ventilation and are concerned by most designer and operators. These factors are: relative humidity of air-inlet in working area, speed of air-inlet in working area, relative humidity of background...
Mine work face gas emission is the important basis for mine design, and has important practical significance for ventilation and safety production. Between mine gas emission and work face there are complex nonlinear relationships. The paper constructed a work face gas emission prediction model based on wavelet neural network. It based on statistics of a mine work face gas emission data, applied the...
Building on the extensive research in Virtual Reality (VR), we are proposing a new dynamic prototype for modelling and simulating carbon emissions in a virtual village called VIRVIL. VIRVIL is a simulated settlement for the assessment of the impact of low and zero carbon technologies and measures in the built environment. The prototype will focus on the impact on the community as a whole, as well...
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