In this paper, a robust adaptive (RA) radial basis function (RBF) neural network (NN) based backstepping control design is proposed for multi-input multi-output (MIMO) electrically driven robot manipulators (EDRM) wit...
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With the rise in both the quantity and sophistication of deepfake videos, the need for robust detection systems to identify potentially misleading content on social media and the internet has become paramount. However...
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In the development of electric, electronic, and information technologies in the medium and low voltage plants, designers reach out the moment of decision when it is necessary to choose equipment and systems that will ...
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Knowledge discovery in databases (KDD) is concerned with progress in data analysis tools. Data mining is a crucial parts of the KDD process. Data mining is a method for discovering and extracting patterns from huge me...
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CPR, cardiopulmonary resuscitation, is a life-saving technique that is given typically to someone who is in cardiac arrest. During the education process of CPR, the rescuer's performance is educated and evaluated ...
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The chance to preserve a life is provided by early identification of cervical cancer, which is the fourth most common malignancy among women globally. Early diagnosis can lower its frequency. However, due to a number ...
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Many municipalities provide textured 3D city models for planning and simulation purposes. Usually, the textures are automatically taken from oblique aerial images. In these images, walls may be occluded by building pa...
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This research introduces a groundbreaking, high-efficiency adsorbent for the remediation of mercury ion contamination in industrial wastewater effluents. A novel chelating polymer, 2-Mercapto-N-methylbenzamide-functio...
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This research introduces a groundbreaking, high-efficiency adsorbent for the remediation of mercury ion contamination in industrial wastewater effluents. A novel chelating polymer, 2-Mercapto-N-methylbenzamide-functionalized polyvinyl amine (PVAm-MMB), was synthesized via a facile acid-catalyzed condensation reaction, strategically incorporating amine, imine, and thiol functionalities to facilitate robust mercury sequestration. Rigorous structural characterization was undertaken utilizing a comprehensive suite of analytical techniques, including elemental CHNS analysis, FTIR spectroscopy, NMR spectroscopy, SEM-EDX microscopy, BET surface area analysis, GC–MS spectrometry, TGA analysis, and XPS spectroscopy, definitively confirming the desired structural attributes of the synthesized material. Subsequent adsorption studies demonstrated the exceptional performance of the mesoporous PVAm-MMB, exhibiting a significant specific surface area (SBET) of approximately 73.7 m2/g, a total pore volume (Vm) of approximately 0.31 cm3/g, and an average pore width of approximately 21.4 nm. Remarkably, the PVAm-MMB achieved a maximum adsorption capacity of approximately 62.9 mg/g under optimized conditions (pH 4.5, 25 °C, 20 min contact time, 1 g/L adsorbent concentration, and 200 mg/L Hg2+ initial concentration). Langmuir isotherm modeling provided a superior fit to the experimental adsorption data compared to the Freundlich model, indicating a monolayer adsorption mechanism. Furthermore, pseudo-first-order kinetics accurately described the adsorption process;the calculated value for qe,1 was 49.88 mg/g, which is quite aligned with the actual value of 48.6 mg/g. Thermodynamic analyses revealed the adsorption process to be spontaneous, exothermic (ΔH = −88.07 kJ/mol), and thermodynamically favored at lower temperatures. A plausible adsorption mechanism is proposed, and importantly, the adsorbent demonstrated excellent reusability. The efficacy of the PVAm-MMB was validated through t
Monitoring sugar concentration during fermentation is crucial for producing high-quality alcoholic beverages. Traditional methods for measuring sugar concentration can be costly and time-consuming, especially for smal...
Monitoring sugar concentration during fermentation is crucial for producing high-quality alcoholic beverages. Traditional methods for measuring sugar concentration can be costly and time-consuming, especially for small-scale producers. In this study, we developed a low-cost buoyant force measurement device for monitoring sugar concentration in water solutions. The device consists of a buoyant object fully submerged in the solution and connected to a load-cell sensor. As the sugar concentration in the liquid increases, the buoyant force on the object increases, and the load-cell measures this force. Proposed device is calibrated using solutions of known sugar concentrations and its high accuracy and precision is presented. The device is tested in controlled environment to ensure accurate tracking changes in sugar concentration over time. Proposed device can be a valuable tool for small-scale producers looking to optimize their fermentation processes while minimizing costs.
The software testing process accounted for nearly forty percent of the total software development cost, and one of the most important parts of software testing was test data generation. Performing this process manuall...
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ISBN:
(数字)9798331507565
ISBN:
(纸本)9798331507572
The software testing process accounted for nearly forty percent of the total software development cost, and one of the most important parts of software testing was test data generation. Performing this process manually led to slowdowns, increased costs, and errors. Therefore, we sought an automated method for generating this set to identify the maximum number of defects. In the process of generating test data, the problem could be transformed into an optimization problem, as their ability to intelligently search in the vast input space and reduce costs and time was superior. Thus, search algorithms could be used to generate test data. Genetic algorithms, particle swarm optimization, etc. were among the most widely used algorithms in this field, but previous algorithms also had drawbacks. In recent years, newer optimization algorithms with better performance were introduced. In this paper, the Coati Optimization Algorithm (COA) was used. This algorithm had lower complexity, appropriate exploration and exploitation phases, and lacked initial parameters compared to previous algorithms. However, the Coati Optimization Algorithm also included weaknesses. Under certain conditions, a solution might never move towards the best solution. Therefore, in this paper, an idea was proposed to improve the performance of the Coati Optimization Algorithm in corrective search ability. Optimization algorithms also needed guidance for search, and the stronger and faster this guidance, the better the quality of the obtained solutions. In this paper, a new fitness function was introduced, which had better performance compared to other fitness functions. Before applying the search algorithm to the data generation problem, first, the control flow graph of the program under test had to be drawn. Then, the execution paths of this program were extracted from the graph, so that the algorithm could generate test data by running on it. However, it should be noted that we would not be able to cove
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