22 pages, 1278 KiB  
Article
Effect of Biofortification with Iodine by 8-Hydroxy-7-iodo-5-quinolinesulfonic Acid and 5-Chloro-7-iodo-8-quinolinol on the Chemical Composition and Antioxidant Properties of Potato Tubers (Solanum tuberosum L.) in a Pot Experiment
by Joanna Krzemińska, Sylwester Smoleń, Iwona Kowalska, Joanna Pitala, Olga Sularz and Aneta Koronowicz
Appl. Sci. 2023, 13(8), 4659; https://doi.org/10.3390/app13084659 - 7 Apr 2023
Cited by 9 | Viewed by 2605
Abstract
Iodine deficiency impacts on the development of thyroid disease. Vegetables and fruits usually have a low iodine content; hence, it makes sense to increase their iodine content. Potato is consumed daily by millions of consumers and would, therefore, be a good target for [...] Read more.
Iodine deficiency impacts on the development of thyroid disease. Vegetables and fruits usually have a low iodine content; hence, it makes sense to increase their iodine content. Potato is consumed daily by millions of consumers and would, therefore, be a good target for biofortification with iodine programs. The aim of this study was to determine the effects of biofortification via the application of soil solutions of two iodoquinolines [8-hydroxy-7-iodo-5-quinolinic acid (8-OH-7-I-5QSA) and 5-chloro-7-iodo-8-quinoline (5-Cl-7-I-8-Q)] and KIO3 (as an iodine positive control) on the iodine content and basic chemical composition, macro and micronutrient content, nitrogen compounds, vitamin C, and antioxidant potential of potato tubers Solanum tuberosum L. The biofortification process had no significant effect on the tuber weight in yield. The application of I in forms of KIO3, 8-OH-7-I-5QSA, 5-Cl-7-I-8-Q resulted in an increase in the I content of tubers (1400.15; 693.65; 502.79, respectively, compared with control, 24.96 µg·kg−1 d.w.). This also resulted in a decrease in elements that are harmful to consumers, such as: Al, Ni, Cr, Ag, Pb and Tl. The enrichment of tubers with 8-OH-7-I-5QSA and 5-Cl-7-I-8-Q resulted in a significant reduction in the content of ammonium ions (from 19.16 to 14.96; 13.52 mg∙kg−1 f.w.) and chlorides (from 423.59 to 264.92; 265.31 mg∙kg−1 f.w.). Biofortification with 8-OH-7-I-5QSA improved the polyphenolic profile of the potato tuber from 197.31 to 233.33 mg GAE·100 g−1 f.w. A significant reduction in the carotenoid content of tubers after the enrichment of the plant with iodine in KIO3, 8-OH-7-I-5QSA and 5-Cl-7-I-8-Q (from 3.46 to 2.96, 2.45, and 1.47 mg∙100 g−1 d.w., respectively) was observed. It can be postulated that the production of potatoes enriched with iodoquinolines and/or KIO3 is worthwhile, as it can provide a good source of I in the diet and simultaneously reduce the risk of developing deficiencies. Full article
(This article belongs to the Special Issue Chemical and Functional Properties of Food and Natural Products)
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16 pages, 5857 KiB  
Article
Towards a Digital Twin Warehouse through the Optimization of Internal Transport
by Joaquín S. Félix-Cigalat and Rosario Domingo
Appl. Sci. 2023, 13(8), 4652; https://doi.org/10.3390/app13084652 - 7 Apr 2023
Cited by 9 | Viewed by 3964
Abstract
Through the construction of parametric simulation models in which possible storage space distributions and positioning logics are also considered as variables, it is possible to build scenarios that allow analyzing the changing reality of storage needs in order to minimize material movements in [...] Read more.
Through the construction of parametric simulation models in which possible storage space distributions and positioning logics are also considered as variables, it is possible to build scenarios that allow analyzing the changing reality of storage needs in order to minimize material movements in each case, optimize internal transportation, and increase the efficiency of production processes. This article shows a particular analysis of a restricted storage space in height, typical to when it comes to logistics associated with raw material in a “big bag” format made of recycled and easily deteriorated material. In conjunction, a location management solution based on passive RFID (radio-frequency identification) tags has been chosen. The process is carried out through simulations with object-oriented discrete event software, where the optimization of the internal transport associated with the layout is carried out considering network theory to define the shortest path between warehouse nodes. The combination of both approaches allows, on the one hand, the evaluation of alternatives in terms of distribution and positioning logics, while the implemented system enables the possibility of making agile changes in the physical configuration of this type of storage space. Full article
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35 pages, 7601 KiB  
Review
Flavonoids as Promising Multitarget Agents in Alzheimer’s Disease Therapy
by Elisabete Lima, Amélia P. Rauter and Jorge Medeiros
Appl. Sci. 2023, 13(8), 4651; https://doi.org/10.3390/app13084651 - 7 Apr 2023
Cited by 9 | Viewed by 2561
Abstract
The increase in the occurrence of the multifactorial Alzheimer’s disease (AD) demands an urgent effort towards the development of effective anti-AD agents, such as the multitarget-directed ligands (MTDLs). In fact, AD is a genetic and an environmental disease, involving a diversity of etiopathogenic [...] Read more.
The increase in the occurrence of the multifactorial Alzheimer’s disease (AD) demands an urgent effort towards the development of effective anti-AD agents, such as the multitarget-directed ligands (MTDLs). In fact, AD is a genetic and an environmental disease, involving a diversity of etiopathogenic processes, and there is not yet a successful AD treatment. The major AD clinical indications (CIs) are extracellular amyloid plaques, intracellular neurofibrillary tangles (NFTs), abnormal inflammatory response, and neuron apoptosis and death caused by oxidative stress. The discovery of neuroprotective natural products, presenting good oral bioavailability, ability to cross the blood-brain barrier (BBB) and safety profile, is indeed a necessity, and some flavonoids are in clinical trials for AD treatment. In this review, the several flavonoids from natural sources that have shown activity on mechanisms associated with AD are presented. Although several reviews have been presented in the last few years, the main objective of this review is to recognize and discuss, for each CI, the scaffolds leading to the highest activity and so to attempt to achieve molecules targeting more than one CI, the MTDLs, which are potential leads for AD treatment. In conclusion, the most active flavonoids against several CIs of AD are flavanols and flavonols, which have a planar scaffold and structures presenting hydroxy groups at C5 and C7 on ring A and at C4′ of ring B. Thus, molecules linking flavanols to flavonols, with hydroxy groups at C5 and C7 on ring A and at C4′ of ring B, are also promising against CIs of AD and potential anti-AD agents. Full article
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12 pages, 2908 KiB  
Article
Use of Foundry Sands in the Production of Ceramic and Geopolymers for Sustainable Construction Materials
by Caterina Sgarlata, Maria Camila Ariza-Tarazona, Enrico Paradisi, Cristina Siligardi and Isabella Lancellotti
Appl. Sci. 2023, 13(8), 5166; https://doi.org/10.3390/app13085166 - 21 Apr 2023
Cited by 8 | Viewed by 3014
Abstract
The aim of this research was to evaluate the possibility of reusing waste foundry sands derived from the production of cast iron as a secondary raw material for the production of building materials obtained both by high-temperature (ceramic tiles and bricks) and room-temperature [...] Read more.
The aim of this research was to evaluate the possibility of reusing waste foundry sands derived from the production of cast iron as a secondary raw material for the production of building materials obtained both by high-temperature (ceramic tiles and bricks) and room-temperature (binders such as geopolymers) consolidation. This approach can reduce the current demand for quarry sand and/or aluminosilicate precursors from the construction materials industries. Samples for porcelain stoneware and bricks were produced, replacing the standard sand contained in the mixtures with waste foundry sand in percentages of 10%, 50%, and 100% by weight. For geopolymers, the sand was used as a substitution for metakaolin (30, 50, 70 wt%) as an aluminosilicate precursor rather than as an aggregate to obtain geopolymer pastes. Ceramic samples obtained using waste foundry sand were characterized by tests for linear shrinkage, water absorption, and colorimetry. Geopolymers formulations, produced with a Si/Al ratio of 1.8 and Na/Al = 1, were characterized to evaluate their chemical stability through measurements of pH and ionic conductivity, integrity in water, compressive strength, and microstructural analysis. The results show that the addition of foundry sand up to 50% did not significantly affect the chemical-physical properties of the ceramic materials. However, for geopolymers, acceptable levels of chemical stability and mechanical strength were only achieved when using samples made with 30% foundry sand as a replacement for metakaolin. Full article
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15 pages, 6625 KiB  
Article
Evaluation of Water Sorption and Solubility and FTIR Spectroscopy of Thermoplastic Orthodontic Retainer Materials Subjected to Thermoforming and Thermocycling
by Alaa T. Albilali, Bashayer H. Baras and Mohammad A. Aldosari
Appl. Sci. 2023, 13(8), 5165; https://doi.org/10.3390/app13085165 - 21 Apr 2023
Cited by 8 | Viewed by 2448
Abstract
Due to the fact that retainers are often recommended for a lifetime, their endurance and longevity are directly related to the quality of the materials used in their production. Our study examined the water sorption, water solubility, and Fourier transform infrared (FTIR) spectroscopy [...] Read more.
Due to the fact that retainers are often recommended for a lifetime, their endurance and longevity are directly related to the quality of the materials used in their production. Our study examined the water sorption, water solubility, and Fourier transform infrared (FTIR) spectroscopy of six commercially available thermoplastic retainer materials (Essix Plus, Zendura, Duran Plus, Tru-Tain DX, Imprelon S pd, and Essix ACE). Moreover, this study evaluated the effect of thermoforming and thermocycling on the water sorption and solubility and surface molecular composition of the tested materials. The present study found that the type of retainer material affected water sorption and solubility capabilities. In addition, the aging methods employed significantly affected some retainer materials’ water sorption and solubility. Moreover, the surface molecular composition evaluated by FTIR spectroscopy revealed that most of the evaluated materials had similar FTIR spectra except for Zendura. All materials had a spectrum that resembled polyethylene terephthalate glycol (PETG) while Zendura had a spectrum similar to semi-rigid polyurethane (PU). Only Zendura had relatively unstable surface structural composition evaluated under the effects of (thermoforming and thermocycling) compared to all tested materials. Full article
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15 pages, 28982 KiB  
Article
Fast Point Cloud Registration Method with Incorporation of RGB Image Information
by Haiyuan Cao, Deng Chen, Zhaohui Zheng, Yanduo Zhang, Huabing Zhou and Jianping Ju
Appl. Sci. 2023, 13(8), 5161; https://doi.org/10.3390/app13085161 - 20 Apr 2023
Cited by 8 | Viewed by 2881
Abstract
Point cloud registration has a wide range of applications in 3D reconstruction, pose estimation, intelligent driving, heritage conservation, and digital cities. The traditional iterative closest point (ICP) algorithm has strong dependence on the initial position, poor robustness, and low timeliness. To address the [...] Read more.
Point cloud registration has a wide range of applications in 3D reconstruction, pose estimation, intelligent driving, heritage conservation, and digital cities. The traditional iterative closest point (ICP) algorithm has strong dependence on the initial position, poor robustness, and low timeliness. To address the above issues, a fast point cloud registration method that incorporates RGB image information is proposed. The SIFT algorithm is used to detect feature points of point clouds corresponding to the RGB image, followed by feature point matching. The RANSAC algorithm is applied to remove erroneous point pairs in order to calculate the initial transformation matrix. After applying a pass-through filter for noise reduction and transiting down with a voxel grid, the point cloud is subjected to rotation and translation transformation for initial registration. On the basis of initial alignment, the FR-ICP algorithm is utilized for achieving precise registration. This method not only avoids the problem of ICP easily getting stuck in local optima, but also has higher registration accuracy and efficiency. Experimental studies were conducted based on point clouds of automotive parts collected in real scenes, and the results showed that the proposed method has a registration error of only 0.487 mm. Among the same group of experimental point clouds with comparable registration error, the proposed method showed a speed improvement of 69%/48% compared to ICP/FR-ICP with regard to registration speed. Full article
(This article belongs to the Special Issue Innovative Technologies in Image Processing for Robot Vision)
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14 pages, 3717 KiB  
Article
The Difficulty of Measuring the Roughness of Glossy Surfaces Using the Triangulation Principle
by Juraj Ružbarský
Appl. Sci. 2023, 13(8), 5155; https://doi.org/10.3390/app13085155 - 20 Apr 2023
Cited by 8 | Viewed by 2796
Abstract
In the experiment, the roughness was measured on a machined surface with high gloss, which was also the main requirement for the test samples. For this reason, the samples made of stainless steel A304 and aluminum alloy AW 2017 were created by a [...] Read more.
In the experiment, the roughness was measured on a machined surface with high gloss, which was also the main requirement for the test samples. For this reason, the samples made of stainless steel A304 and aluminum alloy AW 2017 were created by a progressive laser using material-cutting technology. This article explains a contact-free measurement method that uses the triangulation principle, which constitutes the basis on which the device used in the experiment, i.e., the laser profilometry, works. The surface roughness of the cut surfaces was examined on the manufactured samples through the selected roughness parameters of Ra and Rz. These parameters are commonly used in industry to quantify the roughness of a surface. The values measured in a contact-free manner were then compared with the reference values measured in a contact manner. Data from individual experimental measurements were graphed as dependencies based on which problem areas of measuring the roughness of glossy material surfaces with laser profilometry were described. Laser profilometry is a non-contact method for measuring the roughness of surfaces, and given the presented results of the experimental measurements and selected roughness parameters of the cut surface using a laser, we do not recommend using it for materials that have a glossy surface. Full article
(This article belongs to the Special Issue Advanced Manufacturing Technologies: Development and Prospect)
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14 pages, 3641 KiB  
Article
Prediction of Phytochemical Constituents in Cayenne Pepper Using MIR and NIR Spectroscopy
by Joel B. Johnson, Aimen El Orche, Janice S. Mani, Abderrahmane Aït-Kaddour, Kerry B. Walsh and Mani Naiker
Appl. Sci. 2023, 13(8), 5143; https://doi.org/10.3390/app13085143 - 20 Apr 2023
Cited by 8 | Viewed by 2445
Abstract
The aim of the present study was to evaluate the potential of handheld near-infrared (NIR) and benchtop mid-infrared (MIR) spectroscopy for the rapid prediction of antioxidant capacity, dry matter, and total phenolic contents in cayenne pepper (Capsicum annuum ‘Cayenne’). Using NIR spectroscopy, [...] Read more.
The aim of the present study was to evaluate the potential of handheld near-infrared (NIR) and benchtop mid-infrared (MIR) spectroscopy for the rapid prediction of antioxidant capacity, dry matter, and total phenolic contents in cayenne pepper (Capsicum annuum ‘Cayenne’). Using NIR spectroscopy, the best-performing model for dry matter had an R2pred = 0.74, RMSEP = 0.38%, and RPD of 2.02, exceeding the best results previously reported in the literature. This was also the first study to predict dry matter content from the mid-infrared spectra, although with lower accuracy (R2pred = 0.54; RMSEP = 0.51%, RPD 1.51). The models for antioxidant capacity and total phenolic content did not perform well using NIR or MIR spectroscopy (RPD values < 1.5), indicating that further optimization is required in this area. Application of support vector regression (SVR) generally gave poorer results compared to partial least squares regression (PLSR). NIR spectroscopy may be useful for in-field measurement of dry matter in the chili crop as a proxy measure for fruit maturity. However, the lower accuracy of MIR spectroscopy is likely to limit its use in this crop. Full article
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14 pages, 3062 KiB  
Article
Utilizing Different Machine Learning Techniques to Examine Speeding Violations
by Ahmad H. Alomari, Bara’ W. Al-Mistarehi, Tasneem K. Alnaasan and Motasem S. Obeidat
Appl. Sci. 2023, 13(8), 5113; https://doi.org/10.3390/app13085113 - 20 Apr 2023
Cited by 8 | Viewed by 2702
Abstract
This study investigated the potential impacts on speeding violations in the United States, including the top ten states in terms of crashes: California, Florida, Georgia, Illinois, Michigan, North Carolina, Ohio, Pennsylvania, Tennessee, and Texas. Several variables connected to the driver, surroundings, vehicle, road, [...] Read more.
This study investigated the potential impacts on speeding violations in the United States, including the top ten states in terms of crashes: California, Florida, Georgia, Illinois, Michigan, North Carolina, Ohio, Pennsylvania, Tennessee, and Texas. Several variables connected to the driver, surroundings, vehicle, road, and weather were investigated. Three different machine learning algorithms—Random Forest (RF), Classification and Regression Tree (CART), and Multi-Layer Perceptron (MLP)—were applied to predict speeding violations. Accuracy, F-measure, Kappa statistic, Root Mean Squared Error (RMSE), Area Under Curve (AUC), and Receiver Operating Characteristic (ROC) were used to evaluate the algorithms’ performance. Findings showed that age, accident year, road alignment, weather, accident time, and speed limits are the most significant variables. The algorithms used showed excellent ability in analyzing and predicting speeding violations. The RF was the best method for analyzing and predicting speeding violations. Understanding how these factors affect speeding violations helps decision-makers devise ways to cut down on these violations and make the roads safer. Full article
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29 pages, 6677 KiB  
Article
A Rapid Seismic Damage Assessment (RASDA) Tool for RC Buildings Based on an Artificial Intelligence Algorithm
by Konstantinos Morfidis, Sotiria Stefanidou and Olga Markogiannaki
Appl. Sci. 2023, 13(8), 5100; https://doi.org/10.3390/app13085100 - 19 Apr 2023
Cited by 8 | Viewed by 2216
Abstract
In the current manuscript, a novel software application for rapid damage assessment of RC buildings subjected to earthquake excitation is presented based on artificial neural networks. The software integrates the use of a novel deep learning methodology for rapid damage assessment into modern [...] Read more.
In the current manuscript, a novel software application for rapid damage assessment of RC buildings subjected to earthquake excitation is presented based on artificial neural networks. The software integrates the use of a novel deep learning methodology for rapid damage assessment into modern software development platforms, while the developed graphical user interface promotes the ease of use even from non-experts. The aim is to foster actions both in the pre- and post-earthquake phase. The structure of the source code permits the usage of the application either autonomously as a software tool for rapid visual inspections of buildings prior to or after a strong seismic event or as a component of building information modelling systems in the framework of digitizing building data and properties. The methodology implemented for the estimation of the RC buildings’ damage states is based on the theory and algorithms of pattern recognition problems. The effectiveness of the developed software is successfully tested using an extended, numerically generated database of RC buildings subjected to recorded seismic events. Full article
(This article belongs to the Special Issue Advanced Technologies in Seismic Design, Assessment and Retrofitting)
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24 pages, 16915 KiB  
Article
Information Rich Voxel Grid for Use in Heterogeneous Multi-Agent Robotics
by Steven Balding, Amadou Gning, Yongqiang Cheng and Jamshed Iqbal
Appl. Sci. 2023, 13(8), 5065; https://doi.org/10.3390/app13085065 - 18 Apr 2023
Cited by 8 | Viewed by 2400
Abstract
Robotic agents are now ubiquitous in both home and work environments; moreover, the degree of task complexity they can undertake is also increasing exponentially. Now that advanced robotic agents are commonplace, the question for utilisation becomes how to enable collaboration of these agents, [...] Read more.
Robotic agents are now ubiquitous in both home and work environments; moreover, the degree of task complexity they can undertake is also increasing exponentially. Now that advanced robotic agents are commonplace, the question for utilisation becomes how to enable collaboration of these agents, and indeed, many have considered this over the last decade. If we can leverage the heterogeneous capabilities of multiple agents, not only can we achieve more complex tasks, but we can better position the agents in more chaotic environments and compensate for lacking systems in less sophisticated agents. Environments such as search and rescue, agriculture, autonomous vehicles, and robotic maintenance are just a few examples of complex domains that can leverage collaborative robotics. If the use of a robotic agent is fruitful, the question should be: How can we provide a world state and environment mapping, combined with a communication method, that will allow these robotic agents to freely communicate? Moreover, how can this be decentralised such that agents can be introduced to new and existing environments already understood by other agents? The key problem that is faced is the communication method; however, when looking deeper we also need to consider how the change of an environment is mapped while considering that there are multiple differing sensors. To this end, we present the voxel grid approach for use in a decentralised robotic colony. To validate this, results are presented to show how the single-agent and multiagent systems compare. Full article
(This article belongs to the Topic Advances in Mobile Robotics Navigation)
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24 pages, 9093 KiB  
Article
Analytic Time Reentry Cooperative Guidance for Multi-Hypersonic Glide Vehicles
by Hui Xu, Guangbin Cai, Yonghua Fan, Hao Wei, Xin Li and Yongchao Wang
Appl. Sci. 2023, 13(8), 4987; https://doi.org/10.3390/app13084987 - 15 Apr 2023
Cited by 8 | Viewed by 2286
Abstract
Aiming at the cooperative guidance problem of multi-hypersonic glide vehicles, a cooperative guidance method based on a parametric design and an analytical solution of time-to-go is proposed. First, the hypersonic reentry trajectory optimization problem was transformed into a parameter optimization problem. The parameters [...] Read more.
Aiming at the cooperative guidance problem of multi-hypersonic glide vehicles, a cooperative guidance method based on a parametric design and an analytical solution of time-to-go is proposed. First, the hypersonic reentry trajectory optimization problem was transformed into a parameter optimization problem. The parameters were optimized to determine the angle of attack profile and the time to enter the altitude velocity reentry corridor. Then, using the quasi-equilibrium glide condition, the estimation form of the remaining flight time was analytically derived to satisfy accurately the cooperative time constraint. Using the remaining time-to-go and range-to-go, combined with the heading angle deviation corridor, the bank angle command was further calculated. Finally, the swarm intelligence optimization algorithm was used to optimize the design parameters to obtain the cooperative guidance trajectory satisfying the time constraint. Simulations showed that the analytical time reentry cooperative guidance algorithm proposed in this paper can accurately meet the time constraints and cooperative flight accuracy. Monte Carlo simulation experiments verified that the proposed algorithm demonstrates a robust performance. Full article
(This article belongs to the Special Issue Advanced Guidance and Control of Hypersonic Vehicles)
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17 pages, 1762 KiB  
Review
Yeast Fermentation for Production of Neutral Distilled Spirits
by Kirsty Black and Graeme Walker
Appl. Sci. 2023, 13(8), 4927; https://doi.org/10.3390/app13084927 - 14 Apr 2023
Cited by 8 | Viewed by 8373
Abstract
The production of neutral distilled spirits is increasing worldwide due to the popularity of beverages such as vodka and gin. Yeast fermentation lies at the heart of such production, but there are salient differences between the yeast strains employed for neutral spirits, as [...] Read more.
The production of neutral distilled spirits is increasing worldwide due to the popularity of beverages such as vodka and gin. Yeast fermentation lies at the heart of such production, but there are salient differences between the yeast strains employed for neutral spirits, as compared to those used in whisky, rum, and brandy fermentation. For example, the former white spirit processes aim to minimise the synthesis of flavour-active volatile compounds (or congeners), whilst the opposite is true for more flavoursome brown spirits such as whisky. This paper describes the raw materials, yeasts, and fermentation conditions involved in neutral spirit production processes and discusses challenges and opportunities in such technology, including exciting new developments regarding strategies to improve yeast strains. Full article
(This article belongs to the Special Issue Yeast Fermentation and Biotechnology)
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19 pages, 5666 KiB  
Article
A Novel Moving Object Detection Algorithm Based on Robust Image Feature Threshold Segmentation with Improved Optical Flow Estimation
by Jing Ding, Zhen Zhang, Xuexiang Yu, Xingwang Zhao and Zhigang Yan
Appl. Sci. 2023, 13(8), 4854; https://doi.org/10.3390/app13084854 - 12 Apr 2023
Cited by 8 | Viewed by 2784
Abstract
The detection of moving objects in images is a crucial research objective; however, several challenges, such as low accuracy, background fixing or moving, ‘ghost’ issues, and warping, exist in its execution. The majority of approaches operate with a fixed camera. This study proposes [...] Read more.
The detection of moving objects in images is a crucial research objective; however, several challenges, such as low accuracy, background fixing or moving, ‘ghost’ issues, and warping, exist in its execution. The majority of approaches operate with a fixed camera. This study proposes a robust feature threshold moving object identification and segmentation method with enhanced optical flow estimation to overcome these challenges. Unlike most optical flow Otsu segmentation for fixed cameras, a background feature threshold segmentation technique based on a combination of the Horn–Schunck (HS) and Lucas–Kanade (LK) optical flow methods is presented in this paper. This approach aims to obtain the segmentation of moving objects. First, the HS and LK optical flows with the image pyramid are integrated to establish the high-precision and anti-interference optical flow estimation equation. Next, the Delaunay triangulation is used to solve the motion occlusion problem. Finally, the proposed robust feature threshold segmentation method is applied to the optical flow field to attract the moving object, which is the. extracted from the Harris feature and the image background affine transformation model. The technique uses morphological image processing to create the final moving target foreground area. Experimental results verified that this method successfully detected and segmented objects with high accuracy when the camera was either fixed or moving. Full article
(This article belongs to the Section Computing and Artificial Intelligence)
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28 pages, 7885 KiB  
Article
Techno-Economic Potential of Plasma-Based CO2 Splitting in Power-to-Liquid Plants
by Samuel Jaro Kaufmann, Paul Rößner, Stephan Renninger, Maike Lambarth, Moritz Raab, Jan Stein, Valentin Seithümmer and Kai Peter Birke
Appl. Sci. 2023, 13(8), 4839; https://doi.org/10.3390/app13084839 - 12 Apr 2023
Cited by 8 | Viewed by 4158
Abstract
Mitigating climate change requires the development of technologies that combine energy and transport sectors. One of them is the production of sustainable fuels from electricity and carbon dioxide (CO2) via power-to-liquid (PtL) plants. As one option for splitting CO2, [...] Read more.
Mitigating climate change requires the development of technologies that combine energy and transport sectors. One of them is the production of sustainable fuels from electricity and carbon dioxide (CO2) via power-to-liquid (PtL) plants. As one option for splitting CO2, plasma-based processes promise a high potential due to their flexibility, scalability, and theoretically high efficiencies. This work includes a modeling and techno-economic analysis. A crucial element is the process of the joint project PlasmaFuel, in which two plasma technologies are included in a PtL plant to produce synthetically sulfur-free marine diesel. The results are divided into three scenarios, which differ in the use of different boundary conditions and thus represent different degrees of technology development. The evaluation results in process efficiencies from 16.5% for scenario 2018/20 to 27.5% for scenario 2050, and net production costs between EUR 8.5/L and EUR 3.5/L. Furthermore, the techno-economic potential is mapped in order to open up development steps in the direction of costs below EUR 2.0/L. The present work allows statements regarding system integration and the industrial use of the plasma-based process.; moreover, conclusions can be drawn towards the most important levers in terms of process optimization. Full article
(This article belongs to the Special Issue Plasma Technology and Its Applications)
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