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Car mechanics are exposed to high-temperature discomfort in a repair workshop during their daily work. This work studies thermal comfort in auto workshops by determining the PMV (Predicted Mean Vote) and PDD (Predicted Percentage dissatisfied Index) according to the actual standards. The first part of this work presents the current stage of the method for determining thermal comfort by applying a computational fluid dynamics method. The second part of this paper presents the modelling of the internal volume of the repair workshop and the existing work components. In the third part of the paper, the boundary conditions for thermal comfort are created for two cases: in the first case, the heating radiators are opened, and the cooling system works in the heating regime, and in the second case, the heating radiators are closed, and the ventilation system works in the cooling regime. In the final part of the work, the results and conclusions of this study are presented.

The issue of thermal comfort and its subjective feelings inside a building is becoming more and more important in the modern world. It is caused by the desire to create optimal conditions in places where people stay. The article presents two methods, indirect and direct, which are typically used in the research projects. These methods enable to assess the thermal sensations of people and compare the feelings of the respondents with the value of PMV (the value of human thermal sensations) calculated using the formula from the ISO 7730 standard and the questionnaire surveys.

The rising demand for building energy and the time spent indoors are driving the need for a sustainable balance between building energy demand and occupant comfort. The detailed analysis of fluid flow, radiation heat transfer, heat load on a radiator, and the comfort of indoor occupants is essential for sustainable buildings. This study numerically evaluates the well-validated 3D empty-room model for energy demand in a cold-climate environment to support occupant comfort. Efforts have been made to optimise the factors affecting occupant comfort and the energy demand of the office room to maintain sustainable stability. A well-validated 3-dimensional model simulated airflow, heat transfer, and occupant comfort. The study optimises factors affecting comfort and energy use using multi-objective optimisation (MOO) techniques. Outlet vent location significantly impacts indoor comfort, energy, and fluid flow. Indoor environments can be optimised for both energy and comfort, especially in symmetrical indoor spaces. Floor-level vents improve air circulation but have little impact on energy use in cold climates. In symmetrical fluid domains, symmetrical outlet vent placement achieved the lowest objective function value (0.026), with a heat load of 412.27 W, PMV of 0.24, and PPD of 7.12, whereas floor-level outlet vents showed the highest objective function value (0.575), with PMV of 0.51 and PPD of 12.11, indicating reduced comfort. Overall, optimising ventilation strategies allows for prioritising occupant comfort and energy efficiency based on specific needs.

Increased use of e-powered personal mobility vehicles is usually considered to be a positive change, while it is generally agreed that Personal Mobility Vehicles (PMVs) effectively and efficiently reduce the negative environmental impacts of transport and improve quality of life. There has been great technological progress made by all sectors in the field of personal mobility during the last decade. The use of PMVs for micro-mobility have been welcomed by the market, consumers, and governments and thus they are becoming increasingly popular in modern European society. New technology-driven PMVs provide opportunities to their users, but at the same time create problems with street space sharing, road safety, and traffic offenses. This study gives an overview of recent types of PMVs, offers some insights into upcoming changes and challenges, and raises a discussion on themes related to the increased use of e-powered personal transporters.

Educational buildings have a large share and impact on urban development. While research shows a significant portion of non-industrial energy consumption in these buildings, obtaining optimal thermal comfort in educational buildings remains one of the main concerns in achieving the grounds to promote students’ best performance and efficiency. Extensive research has been done in this field, however, this research presents a new approach to the diverse use of nanotechnology techniques which improve its properties and components in the buildings, aiming to reduce energy consumption and increase thermal comfort. In this paper, thermal comfort and energy consumption are evaluated in a 12-class elementary school located in Shiraz City. Aeropan and nano-Phase change materials (nano-PCMs) is used in the window glass and walls of the studied case. This evaluation presents the simulation and experimental analysis of thermal comfort (PMV) and energy consumption of three classroom alignments in the school building including the Linear-shape (LS), the Integrated Linear-shape (ILS), and the U-shaped (US) alignment. The simulation was performed using EnergyPlus 9.6 software, while the experimental data was collected using TESTO 425 device. The result of this research shows that after applying nano-PCM and Aeropan techniques in window glass and walls, the US alignment has the highest reduction in energy consumption (monthly average of 11.80%) compared to LS and ILS alignments. This alignment includes an energy consumption reduction of 12.03% in the coldest, and, 11.66% in the hottest day of the year in addition to increasing the monthly average thermal comfort of school by the use of nanomaterials.

The Sustainable Urban Mobility Planning (SUMP) process deals with barriers to improve accessibility and quality of life in urban mobility. Public opinion is highly essential for this process because it presents the real needs of road users. This paper illustrates the influence of public opinion on using Private Mobility Vehicle (PMV) in urban. A survey was carried out with 400 participants in Palermo, Italy. The results suggested that there was heterogeneity in gender and age groups in subcategories which represented people who use, do not use, and completely reject, using PMVs in urban. In addition, it was explored that there was a statistically significant relationship at 95% confidence level between sociodemographic characteristics (gender and age groups) and public opinion on PMV using. Employment status was found as an important parameter in transport planning. It was also showed that there was an inconsistency between local and national results. The results suggested that sociodemographic characteristics and public opinion should be investigated in further studies. In addition, a participatory planning process should be carried out to monitor for reliable evaluation in urban transport planning.

An explicit categorical equivalence is defined between a proper subvariety of the class of PMV -algebras, as defined by Di Nola and Dvurečenskij, to be called PMV f -algebras, and the category of semi-low f u -rings. This categorical representation is done using the prime spectrum of the MV -algebras, through the equivalence between MV -algebras and l u -groups established by Mundici, from the perspective of the Dubuc–Poveda approach, that extends the construction defined by Chang on chains. As a particular case, semi-low f u -rings associated to Boolean algebras are characterized.

In this paper is studied the thermal comfort in an office room. The first part of the paper presents the state of the art of numerical methods and graphical determination of the thermal comfort in buildings. Using the advanced modelling techniques, in the second part of the paper, the office volume with the ventilation and evacuation systems are modelled. The simulation is achieved using the CFD module from the SolidWorks software, where is assigned the mechanical properties to all components. In this paper are studied three simulation cases. The obtained results from the first case are compared with the results from the second and third case. In the last part of the paper are presented the conclusions of this study.

In this paper is studied the thermal comfort in an office room. The first part of the paper presents the state of the art of numerical methods and graphical determination of the thermal comfort in buildings. Using the advanced modelling techniques, in the second part of the paper, the office volume with the ventilation and evacuation systems are modelled. The simulation is achieved using the CFD module from the SolidWorks software, where is assigned the mechanical properties to all components. In this paper are studied three simulation cases. The obtained results from the first case are compared with the results from the second and third case. In the last part of the paper are presented the conclusions of this study.

Platelet-derived microvesicles (PMVs), the microvesicles with the highest concentration in the bloodstream, play a key role in the regulation of hemostasis, inflammation, and angiogenesis. PMVs have recently been identified as key factors in the link between platelets and cancer. PMVs bind to both cancer cells and nontransformed cells in the microenvironment of the tumor, and then transfer platelet-derived contents to the target cell. These contents have the potential to either stimulate or modulate the target cell's response. PMVs are encased in a lipid bilayer that contains surface proteins and lipids as well as components found inside the PMV. Each of these components participates in known and potential PMV roles in cancer. The complicated roles played by PMVs in the onset, development, and progression of cancer and cancer-related comorbidities are summarized in this study.