rss_2.0Acta Marisiensis. Seria Technologica FeedSciendo RSS Feed for Acta Marisiensis. Seria Technologica Marisiensis. Seria Technologica Feed Connection Between CMM and CNC Parameter Setup<abstract><title style='display:none'>Abstract</title> <p>The purpose of this article is to establish a new approach for the use of CMM in production serial validation. Even the scope of CMM’s is to give results based on drawing requirements, the capability of this measurement system, can ensure with an advanced program development the parameter setup of CNC’s during setup or any changeover stages. The preparation and the scope of this development is to analyze the mathematic approach of coordinate systems which must be converted from a static coordinate system to a new system that is changed at every CNC clamping operation and rotation of any axis. </p> </abstract>ARTICLEtrue Identification in Voice Recordings<abstract><title style='display:none'>Abstract</title> <p>The paper shows the understanding of a topic recognition problem like the speech recognition system based on Natural Language Processing (NLP) and the steps of its implementation of a rules-based approach, which is able to classify given audio materials based on predefined topics in real-time. During implementation, a statistical vocabulary was developed. Google Speech API (<italic>Application Programming Interface</italic>) was employed for subtitling audio materials, and the most ideal time frame for reception was identified through several experiments. The motivation of this work is based on the deficiency of similar simple systems for Hungarian topic recognition, even though numerous international languages already utilize multiple Automatic Sound Recognition (ASR) systems.</p> </abstract>ARTICLEtrue and Characterizing the Dielectric and Ferroelectric Properties of the PZT-Pms Complex System Through Solid State Reactions and Spark Plasma Sintering<abstract><title style='display:none'>Abstract</title> <p>In this paper B-oxide sintering process and Spark plasma Sintering (SPS) method is used to synthesize 0.88Pb(Zr<sub>0.52</sub>Ti<sub>0.48</sub>)O<sub>3</sub> – 0.12Pb(Mn<sub>1/3</sub>Sb<sub>2/3</sub>)O<sub>3</sub> – x at%Pr complex system where x = 0 and 0.02. The sintering temperature used in the SPS technique is considerably lower than that used in the B-oxide method (200 to 400<sup>o</sup>C) with significant decrease of the duration of the sintering route, arriving to some minutes instead of some hours. </p> <p>The aim of the study is the investigation of the effect of sintering technique on the dielectric and ferroelectric properties of such piezoelectric materials. The properties of the developed ceramic materials were determined: the development of crystalline phases was investigated by X-ray diffraction technique and the microstructural behavior by scanning electron microscopy was observed. The composition obtained by the SPS technique shows a lower remnant polarization and maximum strain, as well as a higher coercive field, compared to the those obtained using the same composition produced by B-oxide method. </p> </abstract>ARTICLEtrue User Interface for ABB IRB120 Robot Using TCP/IP Communication<abstract><title style='display:none'>Abstract</title> <p>This paper presents the development and implementation of a remote user interface for the ABB robot using the TCP/IP protocol. The study focuses on building a user-friendly interface in Matlab environment that enables precise and secure control of the robot’s operation with an educational support role in teaching the basics of robotics. The remote application offers a simple and intuitive controlling mode, providing users with a firsthand experience of the robot’s capabilities through predetermined actions. Additionally, the advanced mode allows users to test the robot’s functionality and perform simple tasks. The use of asynchronous communication contributes to the stability and performance of the remote control application. </p> </abstract>ARTICLEtrue Review on Application and Mechanical Properties of Hollow Tubular Section<abstract><title style='display:none'>Abstract</title> <p>This paper presents a comprehensive review of the literature on hollow tubular structures, with applications ranging from traditional engineering structures to from simple circular tubes to modern corrugated structures. As such it provides an important reference for researchers to have a broad epigrammatic cognizance of the mechanical behavior of these structures. Hollow structures have long been seen as a simple and effective means of light weight structures with high stability under buckling load and energy absorption capability. This has been used in numerous industrial and academic applications. In recent years there have been numerous innovative developments to hollow tubular structures, involving more bewildering and inventive hollow structures which are better than solid structures as well as aesthetically more appealing. The use of corrugation and advanced composite materials are giving an added advantage by the virtue of which researchers can easily alter these structures and can make it beneficial or transform it according to their desired application. </p> </abstract>ARTICLEtrue Regarding the Ergonomics of the Vehicle Interior<abstract><title style='display:none'>Abstract</title> <p>The evolution of the vehicle industry, as well as the sudden increase in competition between manufacturing companies, dictates the increase in the obligations of manufacturers to meet the increasingly complex requirements of users, in terms of ergonomics, comfort, safety, as well as environmental protection. Researchers have investigated the factors influencing the ergonomics of the vehicle interior which is very practical to improve safety and driving performance in addition, it can significantly reduce the development costs and the development cycle of new vehicle concepts, but the concept of ergonomics was not clearly articulated from a human perspective. This study aims to interpret the definition of ergonomics in the context of the interior of the vehicles and also in the study the influencing factors of the ergonomics of the index layer of the human-machine interaction interface, in the central console of the vehicle, are identified. The influencing factors are analyzed by creating and visualizing bibliometric networks in VOSViewer. </p> </abstract>ARTICLEtrue on the Corrosion Resistance of High Chromium Alloy Steels<abstract><title style='display:none'>Abstract</title> <p>The paper studies the corrosion resistance of 40Cr130 in different structural states. The material is thus characterized in the annealed, normalized, quenched, tempered state and, respectively, following a thermochemical treatment.</p> <p>Good corrosion resistance was found in all states, and substantial improvements were noted following the thermochemical nitriding treatment. </p> </abstract>ARTICLEtrue on the Acoustic Comfort Inside the Heavy Vehicle Cabin<abstract><title style='display:none'>Abstract</title> <p>Noise, vibration, and harshness (NVH) researchers spend inexhaustible resources of materials, time and money in determining the objective factors that are important in ensuring acoustic comfort in vehicles. In this paper, the factors that directly influence the interior acoustic pressure level in a heavy-duty vehicle were investigated. It was determined using specific descriptors and different units of measurement in assessment of sound levels and the impact generated by noise, the level of interior acoustic pressure and particular values of some prominent sources of noise in the operation of vehicles (engine, HVAC system), taking into account the factors of insurance and thermal comfort, with the aim of determining the cumulative impact at the board of heavy vehicles due to noise. </p> </abstract>ARTICLEtrue on: “The Complex Version of a Result for Real Iterative Functions”<abstract><title style='display:none'>Abstract</title> <p>Finta [2], recently proposed a complex version of iteration procedures for holomorphic functions. The general theorem of the complex iteration function has developed by using the complex mean value theorem and discussed several iterative procedures for holomorphic functions. In this paper, we redevelop the general theorem of the complex iteration function by applying the fundamental theorem of the complex line integral. It is shown that all the results derived in the paper of Finta have been improved by the results of this paper. </p> </abstract>ARTICLEtrue to the Use of Corn Instead of Sawdust Pellets at Small Power Domestic Boiler with Pellets<abstract> <title style='display:none'>Abstract</title> <p>The aim of the work is to study the possibility of replacing wood sawdust pellets with grain at the heating systems. Due to the energy crisis experienced in the winter of 2022-2023, when the price of used pellets increased by 300% compared to the previous year, when in some periods wooden pallets disappeared from commerce, the study of the replacement of the energy sources with which the small power domestic boiler were designed to operate on wooden pellets is justified. It is known that corn has a high calorific value. Due to this fact in the present work the possibility of using corn and the effects of its use on boiler with pellets that do not have in the specifications the fact that they can also work with any granular biomass are studied.</p> </abstract>ARTICLEtrue Algorithms for Patterns Identification in Medical Data<abstract> <title style='display:none'>Abstract</title> <p>Recently, medical databases have expanded rapidly, and the amount of information is huge. This abundance of data appears as a consequence of the new technologies that have been developed in the medical field and that allow easy data collection. The performance of the technique depends on the input data and available resources. Whereas, in Eclat the repeated scanning of the database is eliminated and consumes less time and we can conclude that Eclat is better than Apriori and Fpgrowth. If we refer to the execution time and memory usage, then the FP-Growth algorithm is more efficient than the Eclat algorithm or the Apriori algorithm. If we consider factor other than time, the result may vary from one factor to another.</p> </abstract>ARTICLEtrue Framework for Optimizing Antenna Through Genetic Algorithm-Based Neural Network<abstract> <title style='display:none'>Abstract</title> <p>In this research paper, the application of Artificial Neural Networks (ANN) for designing antennas is introduced. The primary objective of this optimization technique is to focus on the antenna’s parameters to achieve a desirable S<sub>11</sub> value, which is a key metric of an antenna’s performance. To demonstrate the effectiveness of this approach, the optimization method to design three different antennas using the Numerical Analyzer (MATLAB) tool is employed. Through this study, it is tried to provide new insights into the optimization of antenna design using ANN and demonstrate its potential applications in the field of antenna engineering. The results of this research could potentially lead to the development of more efficient and effective antenna systems with improved performance in various applications.</p> </abstract>ARTICLEtrue Models Used in the Optimizations of Supply Chains<abstract> <title style='display:none'>Abstract</title> <p>This paper provides a synthesis of the concept of supply chain optimization. The aim of the research is to identify a supply chain optimization process, the key aspects in carrying out this process, and at the same time to emphasize the advantages that the optimization of companies' processes brings through the mathematical modeling of logistic processes that can be useful in the optimization of supply chains. In the research methodology it is used the Simplex transport algorithm. In a practical situation of a company with 3 warehouses and 4 clients, it allowed optimizing the transport routes and getting a minimal total cost for logistical delivery.</p> </abstract>ARTICLEtrue of the Exoskeletons Lifespanin the Intensive Care Units<abstract> <title style='display:none'>Abstract</title> <p>The exoskeletons surface as useful devices in alleviating the Intensive Care Units (ICU) medical stuff’s quality of life. A goal of manufacturers and users of exoskeletons is to determine the probability of proper functioning and increase their lifespan. Considering the extremely small number of exoskeletons for which the durations (cycles) of operation are known, in order to be able to make predictions on the characteristics of the average durations of operation, we used the bootstrap method. Through this method, starting from a small number of data collected from the exploitation of exoskeletons, a desired number of data "similar" to real data is obtained. We used the data of 10 exoskeletons of the same type and their operating times with which 2000 replicates were generated. The data were processed using the EasyFit program and the functional probabilities of the exoskeletons were deduced. A pilot study was performed in order to find the usefulness of using a passive or active torso support exoskeleton in the ICU for prone positioning. It demonstrated a lower degree of fatigue in the subjects who used the exoskeletons.</p> </abstract>ARTICLEtrue of Using Operational Balanced Scorecard in Automotive Industry. A Case Study<abstract> <title style='display:none'>Abstract</title> <p>Strategy definition is an elementary key of success and should be present in any industry, but an extra attention is paid to the automotive field. Thus, strategy definition and cascade in the organization is needed to drive the organization in the right direction, in the desired direction and ensuring the commitment, involvement of the employees.</p> <p>This paperwork presents a case study from automotive industry, of applying Operational Balanced Scorecard methodology, under Company Strategy Deployment unique and personalized approach to company needs. A systemic outlook and an appropriate involvement support the company's continuous improvement efforts.</p> <p>The introduction presents general information on the Total Performance Scorecard and its ad-vantages. Going forward, the Company Strategy Deployment approach of the mentioned tools are described, showing in parallel the evolution of the implementation in an automotive respectable company. The paper ends up with the formulation of conclusions regarding the deduced effects.</p> </abstract>ARTICLEtrue Drive System Behavior Simulation at the Forestier Cableway<abstract> <title style='display:none'>Abstract</title> <p>This article is a small part of the overall research on the electrification of a forest funicular. We live in a world that is constantly working to reduce pollution caused by the use of fossil fuels, and this is true in all fields of work. The Forestier funicular is also part of an important field of work, and because it is a complex mechanical and hydraulic system, it requires more electrical simulation to find the most optimal options for replacing the traditional thermal engine-based system. This article will look at the two main components of electrification: batteries and electric drive motors.</p> </abstract>ARTICLEtrue Based Restaurant Menu Ordering System<abstract> <title style='display:none'>Abstract</title> <p>The role of restaurants, canteens, other forms of eatery and food service outlets are becoming very big part of most economies at different levels. However improvement in customer experience while making orders plays a very critical role in having a smooth and efficient menu ordering process. This article presents a novel hybrid approach that tackles the challenges associated with menu ordering especially in the post-covid era; both from software and hardware perspectives. First, a web-application - powered by ReactJS and GraphQL, which enables order request anywhere at any time was developed. In addition, is the implementation of hardware with mobility feature on trips to the restaurant using two Arduino microcontrollers (transmitter and receiver). The result allows the user to browse through a catalogue, check-in and out on a Thin-Film-Transistor (TFT) liquid-crystal display (LCD) and deliver a seamless experience to the customer.</p> </abstract>ARTICLEtrue of the Extent of Vertical Head Movements From Sound Alone<abstract> <title style='display:none'>Abstract</title> <p>Human-like agents are becoming more and more common. However, the usefulness of these agents depends to a large extent on the naturalness of their movements. The classification procedure presented in this article aims to increase the naturalness of the head movements of human-like agents. The method is capable of estimating the vertical range of head movement from the speech sound alone, and thus allows a final phase amplitude correction of the generated head movements of virtual talking heads in order to increase naturalness. The advantage of the method, is that it does not require visual information, works for general subjects, its precision and effectiveness can be improved by defining further classes, and it can improve the naturalness of any head movement generation method’s output by a posterior amplitude scaling.</p> </abstract>ARTICLEtrue of 5-axis Robot Arm for Automatic Processes<abstract> <title style='display:none'>Abstract</title> <p>This project devotes to implement the 5-axis movable robot arm leads to provide an automated process for capturing the utensils. The main target is to perform material separation manually and via android program using a 5-axis movable robot arm. In this generated environment, there is information about the electrical circuits, mechanical structures and software of a robot arm that can be used in automation systems. Practically, an experimental study is developed to move the robot arm by adjusting the angular values it receives by remote connection and positioning the motors. 3D printer filaments, which are light in weight, and gear sets of the servo motor are used in order not to burden the servo motors in the mechanical parts of the robot.</p> </abstract>ARTICLEtrue Reactive Power Dispatch Using Improved Chaotic PSO Algorithm with the Wingbeat Frequency<abstract> <title style='display:none'>Abstract</title> <p>The importance of reactive power to the economy and security of power systems cannot be overemphasized. For instance, Transmission losses increase when reactive power is unevenly distributed on transmission network; and power quality is affected as well. The cheapest way of reducing these transmission lines losses is via reactive power dispatch approach. This study therefore proposes an Improved Chaotic Particle Swarm Optimization algorithm (ICPSO) with the primary aim of reducing real power transmission line losses while adhering to system constraints. Although the traditional PSO has a fast convergence speed, it falls easily into local optimum and it is slow at the later stage of convergence. The ICPSO is proposed in this research to overcome these shortcomings. The approach combines PSO with chaotic map which increases particles’ diversity, allowing particles to explore the search region more; and a wingbeat frequency component which helps to sustain the rate of convergence of particles. MATPOWER 7.1 in MATLAB 2019a environment was utilized for the implementation. The purported algorithm was examined on IEEE14 and IEEE30 Test Beds respectively. When tried out on IEEE14 Test bed, real power loss was reduced from 13.393 MW to 12.260 MW; whereas real power transmission line loss was brought down from 17.557 MW to 15.977 MW when tried out on IEEE30 Test Bed. In terms of reducing real power transmission lines losses, the simulation results show that the proposed approach performs better when compared with other algorithms.</p> </abstract>ARTICLEtrue