Showing papers by "Brno University of Technology published in 2022"
TL;DR: This work shows that VBx achieves superior performance on three of the most popular datasets for evaluating diarization: CALLHOME, AMI and DIHARDII datasets and presents for the first time the derivation and update formulae for the VBX model.
110 citations
TL;DR: In this article, the feasibility and the optimal scheme to implement an electric-thermal carbon emissions neutral industrial park and perform a 3E analysis on various scenarios are discussed, and the results of the real-world case show that the present value of the cost of achieving carbon emissions neutrality is $ 8.61 billion (109).
46 citations
TL;DR: In this paper, a neural network model is used to forecast the plastic waste generation of the EU-27 in 2030 and evaluate how the interventions could mitigate the adverse impact of plastic waste on the environment.
36 citations
TL;DR: In this article, a review of phyllosilicate derived (clay-based) heterogeneous catalysts for biodiesel production via lignocellulose derived feedstocks was made.
36 citations
TL;DR: In this article, a classification of salt hydrates-based gas-solid thermochemical energy storage (TCES) systems is established, and the properties and performance regulation strategies of materials, types of reactors, applications, heat and mass transfer process, reaction mechanisms, and critical comments and outlooks on this adsorption TCES technology are provided.
Abstract: Due to the prominent advantages of high energy density and long-term energy conservation ability, salt hydrate-based gas-solid thermochemical energy storage (TCES) is a promising technology for effectively employing low-grade energy such as industrial waste heat and minimising fossil fuel-based sources depletion. As an innovative thermal energy storage technology that has drawn great attention from scholars in recent years, it still remains in the stage of a laboratory-scale investigation. This study establishes a reasonable classification of salt hydrates-based TCES systems, discusses the properties and performance regulation strategies of materials, types of reactors, applications, heat and mass transfer process, reaction mechanisms, and also provides critical comments and outlooks on this adsorption TCES technology. It is comprehensively elaborated and evaluated in the following steps. (i) The development of various thermochemical materials (TCMs), including pure salts, mixtures of salt hydrates, and composite TCMs of salt/matrix, is summarised and assessed in detail from the perspectives of thermochemical performances such as ESD and cyclability. (ii) The progress of the conceptual design of the reactor and prototype used for vapour/salt gas-solid reaction are presented and analysed. (iii) The existing theoretical models ranging from the views of microcosmic molecular dynamics to macrocosmic reaction kinetics are discussed. (iv) Additionally, the existing challenges regarding salt hydrate-based TCES technology are identified, and the prospects are also provided. This review enables researchers to timely grasp the latest advancements and thus may provide some rewarding insights for future investigations of salt hydrate-based gas-solid TCES and facilitate scholars to achieve better improvements.
27 citations
Imperial College London1, Pacific Northwest National Laboratory2, Met Office3, NOAA Chemical Sciences Laboratory4, University of Maryland, Baltimore County5, University of Arizona6, Delft University of Technology7, University of Oxford8, University of Colorado Boulder9, University of Rochester10, University of Tartu11, Icahn School of Medicine at Mount Sinai12, University of Oklahoma13, Hebrew University of Jerusalem14, Brno University of Technology15, University of California, San Diego16, National Centre for Atmospheric Science17, University of Maryland, College Park18, University of Cambridge19, Texas Tech University20, National Centre for Earth Observation21, University of Washington22, Leibniz Institute for Tropospheric Research23, Goethe University Frankfurt24
TL;DR: Aerosol-cloud interactions (ACI) are considered to be the most uncertain driver of present-day radiative forcing due to human activities as discussed by the authors , and using correlations to infer causality can be challenging when meteorological variability also drives both aerosol and cloud changes independently.
Abstract: Aerosol-cloud interactions (ACIs) are considered to be the most uncertain driver of present-day radiative forcing due to human activities. The nonlinearity of cloud-state changes to aerosol perturbations make it challenging to attribute causality in observed relationships of aerosol radiative forcing. Using correlations to infer causality can be challenging when meteorological variability also drives both aerosol and cloud changes independently. Natural and anthropogenic aerosol perturbations from well-defined sources provide "opportunistic experiments" (also known as natural experiments) to investigate ACI in cases where causality may be more confidently inferred. These perturbations cover a wide range of locations and spatiotemporal scales, including point sources such as volcanic eruptions or industrial sources, plumes from biomass burning or forest fires, and tracks from individual ships or shipping corridors. We review the different experimental conditions and conduct a synthesis of the available satellite datasets and field campaigns to place these opportunistic experiments on a common footing, facilitating new insights and a clearer understanding of key uncertainties in aerosol radiative forcing. Cloud albedo perturbations are strongly sensitive to background meteorological conditions. Strong liquid water path increases due to aerosol perturbations are largely ruled out by averaging across experiments. Opportunistic experiments have significantly improved process-level understanding of ACI, but it remains unclear how reliably the relationships found can be scaled to the global level, thus demonstrating a need for deeper investigation in order to improve assessments of aerosol radiative forcing and climate change.
26 citations
University of Nottingham Malaysia Campus1, Quaid-i-Azam University2, Pir Mehr Ali Shah Arid Agriculture University3, Brno University of Technology4, Asia Pacific University of Technology & Innovation5, COMSATS Institute of Information Technology6, King Khalid University7, University of Technology, Sydney8
TL;DR: In this article, the potential of the toxic and non-edible seed oil of Zanthoxylum armatum was investigated for eco-friendly production of biodiesel catalysed by green nanoparticles of silver oxide.
20 citations
TL;DR: In this article , the authors summarized problems of dust and ice accumulation and its cleaning technologies for PV modules, and the basic principle and development of superhydrophobicity are introduced.
18 citations
TL;DR: In this paper, a 3D printed liquid-phase microextraction (LPME) device with an HF located in a sample vial of a commercial electrophoresis (CE) instrument is demonstrated.
16 citations
TL;DR: In this paper, an extended targeting and synthesis procedure using the Pinch approach has been developed for material resource conservation networks with multiple contaminants (e.g. water recycling network with multiple constraints).
13 citations
TL;DR: The article proposes a multi-objective optimization method called Generalized Differential Evolution (GDE3) for a Variable Number of Dimensions (VND) and the novel approach is compared to the standard approach in a linear antenna array design problem.
Abstract: The article proposes a multi-objective optimization method called Generalized Differential Evolution (GDE3) for a Variable Number of Dimensions (VND). The well-known generalized differential evolut...
TL;DR: In this article, a 1D-CNN model has been proposed to automatically diagnose fetal acidosis into healthy or pathological conditions with high accuracy and achieved 99.09% accuracy on a comprehensive dataset.
TL;DR: In this paper, using a newly designed 96-well-plate array of microbial fuel cells (MFCs), the authors compared the electroactive capabilities of microbial communities derived from four mine drainages.
Jamia Millia Islamia1, University of Nottingham Malaysia Campus2, COMSATS Institute of Information Technology3, Brno University of Technology4, Asia Pacific University of Technology & Innovation5, University of Hassan II Casablanca6, King Khalid University7, Vienna University of Technology8, University of Nottingham9
TL;DR: In this article, hospital wastewater was treated using a submerged aerobic fixed film (SAFF) reactor coupled with tubesettler in series, and the removal efficiency was determined at varying organic loading rates and hydraulic retention time.
TL;DR: In this article , the authors present four approaches to interpret support vector machines through investigating which features the models consider important in the classification task of 19 algal and cyanobacterial species.
TL;DR: In this paper , the default meander scanning strategy for AlSi10Mg material was changed to contour strategy and its main SLM process parameters were developed to produce lattice structures with high material density (more than 99.8%) and low surface roughness in a wide range of strut diameters from 0.6 to 3 mm.
TL;DR: In this paper, the authors present a numerical analysis of the ultimate limit state of imperfect columns under axial compression; the columns are made of stainless steel with a circular hollow cross-section (CHS).
TL;DR: In this paper , the state-of-the-art in the field of phase-change materials for latent heat storage is reviewed and a review shows notable lack of accurate data describing environmental impacts of PCMs.
TL;DR: In this paper, the authors proposed an enhanced EMD method, termed Auto-EMD method, based on a progressive utilization of EMD, Hilbert marginal spectrum, and Gaussian mixture model clustering.
TL;DR: In this paper, an author's database describing 232 accidents was created, which were firstly classified into categories and then the potential consequences of accidents on human lives, the environment, and property have been referred.
Abstract: The article deals with the still not much described issue of the process safety of municipal wastewater treatment plants. An author's database describing 232 accidents was created. These accidents were firstly classified into categories. Basic statistics, including an analysis of the number of accidents, were subsequently implemented for these categories. The potential consequences of accidents on human lives, the environment, and property have been referred to. An important part of the article is a description of the causes of accidents, which also points out the possibilities of how to prevent the respective accidents. Special attention is paid to the storage and handling of hazardous chemicals. The analysis of the information contained in the database shows that the environment is most often damaged in the event of an accident at WWTP; this occurs in 58% of cases, the most common cause being device or structural failure. It also transpires that a significant number of accidents at WWTPs are caused by extreme weather conditions, such as torrential rains, floods, etc., totalling 13% of all accidents. It can be estimated that, due to the higher frequency of extreme weather conditions, the number of such accidents will increase. WWTP operators should be prepared for this.
TL;DR: The arm-leg coordination and timing of the dolphin kick showed no difference between the events, but the total underwater glide duration was longer in both the 100- and 200-meter start, which shows that swimmers did not change the complex inter-limb coordination between the competitive events,but only modified the least complex movement, gliding, to adapt to the swimming speed of the respective events.
TL;DR: In this article, the role of dopants on the burnability of the raw mix was monitored by TG-DTA and heating microscopy, and phase composition of the clinker was characterized by light microscopy and X-ray powder diffraction.
TL;DR: LuFeO3 and LuFe1-xIrxO3 ceramics with x = 0.05 and 0.10 have been obtained by solid-state reaction process as discussed by the authors .
TL;DR: LuFeO3 and LuFe1-xIrxO3 ceramics with x √ 0.05 and 0.10 have been obtained by solid-state reaction process.
01 Jan 2022
TL;DR: In this paper, the thermal performance of the simple Trombe wall concept enhanced with a phase change material (PCM) is investigated. But the main concern is based on initial performance prediction using calibrated building energy simulation to identify the energy effective parameters for this system.
Abstract: Viable utilizing of solar energy by a building envelope can be achieved by different structural principles and material layer positions inside the construction. An application of passive responsive materials actuated by various boundary stimuli reveals considerable potential of heat transfer management through the facade system. This paper is focused on the thermal performance of the simple Trombe wall concept enhanced with a phase change material (PCM). The main concern is based on initial performance prediction using calibrated building energy simulation to identify the energy effective parameters for this system. Adjustment of different thermo-physical properties of integrated materials revealed substantial effect on overall thermal efficiency in terms of cooling loads and pointed out the effect of phase change temperature of PCMs.
TL;DR: The high temperature oxidation kinetics of the Fe-10Al-4Cr-4Y2O3 ODS Alloy (FeAlOY) with excellent creep and oxidation resistance at temperatures exceeding 1100 °C is investigated at 1200 °C, 1300 °C and 1400 °C in this article .
17 Jan 2022
TL;DR: In this paper , a case study on the international financial market using type-2 interval of fuzzy logic is presented, and the performance of different types of fuzzy membership functions with integrated additional uncertainty is evaluated.
Abstract: This article deals with the determination and comparison of different types of functions of the type-2 interval of fuzzy logic, using a case study on the international financial market. The model is demonstrated on the time series of the leading stock index DJIA of the US market. Type-2 Fuzzy Logic membership features are able to include additional uncertainty resulting from unclear, uncertain or inaccurate financial data that are selected as inputs to the model. Data on the financial situation of companies are prone to inaccuracies or incomplete information, which is why the type-2 fuzzy logic application is most suitable for this type of financial analysis. This paper is primarily focused on comparing and evaluating the performance of different types of type-2 fuzzy membership functions with integrated additional uncertainty. For this purpose, several model situations differing in shape and level or degree of uncertainty of membership functions are constructed. The results of this research show that type-2 fuzzy sets with dual membership functions is a suitable expert system for highly chaotic and unstable international stock markets and achieves higher accuracy with the integration of a certain level of uncertainty compared to type-1 fuzzy logic.
TL;DR: In this article, the authors applied a technique of aided phytostabilization for the immobilization of metal (-oid)s in soil with the application of nanosized halloysite and biochar (nBH), along with Lolium perenne L. Its effectiveness was assessed in terms of changing temperature conditions (16 cycles of freeze and thaw cycles, (FTC)) on the content of As, Cu, Pb and Zn in the soil, roots, and above-ground parts of the tested plant, chemical fraction distributions of metal and their stability (
TL;DR: In this paper , the authors reported on ScPtBi half-Heusler thin films grown at 200 and 300 °C on Ta/Si (100) substrates by magnetron co-sputtering.
TL;DR: In this paper, the effect of adjusting the length of the upper link of the three-point hitch on the change in the load of the in-furrow wheel and the on-land wheel of the tractor during ploughing was investigated.
Abstract: The aim of the article is to demonstrate the effect of setting the length of the upper link of the three-point hitch on the change in the load of the in-furrow wheel and the on-land wheel of the tractor during ploughing. Furthermore, attention is paid to the load on the rear wheels together with the tyre inflation pressure and their effect on the contact pressure under the tractor wheels. The tractor’s inclination, in combination with the force and moment effects of ploughing, may not always lead to large differences in the contact pressures of the rear in-furrow and on-land wheels. The results for the tractor-mounted plough set showed the possibilities of balancing the load on the rear wheels of the tractor when changing the length of the upper link of the three-point hitch. For semi-mounted ploughs, changing the length of the link will not affect the difference in the load on the rear wheels of the tractor. The kinematic linkage of the semi-mounted plough suspension transmits the moment from the plough support wheel and loads the wheel in the furrow more. The results further document that the proper suspension of the ploughs and, in particular, the appropriate choice of tyre inflation pressure can achieve substantial changes in the contact pressure under the rear wheels of a plough tractor.