rss_2.0Acta Marisiensis. Seria Technologica FeedSciendo RSS Feed for Acta Marisiensis. Seria Technologica Marisiensis. Seria Technologica 's Cover of Positive Solution for a Singular Fourth–Order Differential System<abstract> <title style='display:none'>Abstract</title> <p>This paper investigates the existence of positive solutions for a fourth-order differential system using a fixed point theorem of cone expansion and compression type.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00„Emotional Intelligence and Communication in Human Resources Management to Avoid Occupational Stress”<abstract> <title style='display:none'>Abstract</title> <p>This study is part of a larger paper and brings to the fore a topical issue in today’s society, namely the importance of emotional intelligence in interpersonal relationships in an organization, its connection with the ability of individuals to communicate empathetically, directly, concisely in properly manage working time to avoid occupational stress. This article includes: basics about the importance of emotional intelligence in an organization, the causes of organizational stress, and factors that lead to decreased job satisfaction. The article includes the objective, purpose, research hypothesis, conceptual basis and methodology, tools for measuring stress, emotional intelligence and professional communication.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Cycling Activity Dataset Creation and Application for Feedback Giving<abstract> <title style='display:none'>Abstract</title> <p>Our research aims at supporting personal cycling trainer applications in training planning and feedback giving to nonprofessional outdoor cyclists, based on a general reference. In this paper we present the created dataset. According to our present knowledge, this data collection is the first public dataset containing cycling activities recorded outdoor. Its usability for training planning and feedback giving is demonstrated through an example. The dataset is clustered according to age groups, considering distance and average speed as the two most influential features when predicting the time required for training. These clusters are then applied as references in feedback giving and goal setting.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Dynamic Analysis over the Changes Impact in Production Process in Automotive Industry<abstract> <title style='display:none'>Abstract</title> <p>The development of capacities for being flexible is based on top management, helps firms to manage the environmental uncertainty and tends to increase the companies performances. We propose the hypothesis as both environmental factors and internal resources affect directly the production system and also the company performances. In order to create the present paper we have been done statistical analysis based on impact factors over the internal product and processes. The results show in optimization development phases, the customer involvement brings a major impact in change process and means it can have an impact over the final process and product.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Development and Implementation of a Mini CNC Milling Machine<abstract> <title style='display:none'>Abstract</title> <p>The development of mechanical processing machines with integrated CNC systems allows the manufacturing industry to produce complex products quickly with high quality. CNC has become a main course for mechanical students in technical and vocational universities. CNC machine training is required to enhance student’s skills to learning in design and manufacturing technology. However, the cost to buy a CNC machine is not cheap. In a developing country like Vietnam, along with the limited budget of most universities, this is an obstacle for students to have the opportunity to use CNC machines. To help students have a teaching aid in learning, improve practice capacity. The article proposes an alternative to design and manufacture a simple, inexpensive milling machine with all the required functions. The CAD models design of the machine model structure were done using Solidwork and NX software. Most of the machine’s parts are manufactured and assembled in the Faculty of Engineering Mechanics and Automation laboratory of Engineering and Technology, Vietnam National University Hanoi. The study’s main objective is to propose a process for designing and manufacturing a mini vertical 3-axis CNC milling machine with low cost but full features similar to an industrial CNC machine. The machine model introduced in the article can be used as a teaching aid, improving practical capacity for students of machine building</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Software Solution Integrated in Three-Dimensional Technologies for Preoperative Planning of Tibial Plateau Fractures<abstract> <title style='display:none'>Abstract</title> <p>Background: Planning in orthopedic surgery can be supported by various virtual reconstruction and tri-dimensional (3D) segmentation programs, but this topic requires further study to identify software solutions that make the process duration more efficient. Objective: To validate 3D software solutions that integrates 3D technologies for patient-specific applications in orthopedics in order to minimize the extent of surgery. Method: We have used the Democratiz3D software solution for patient-specific modeling and surgical planning. Results: Validation of the proposed methodology was performed for the preoperative planning of a 28-year-old male patient who had a Schatzker type II tibial plateau fracture. Conclusion: The 3D planning capabilities of the software solution are a valuable tool for surgeons in exploring the nature of fractures and formulating an appropriate surgical plan which creates perspectives for personalized surgery.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Simulation of Production Processes in Combination with Traceability<abstract> <title style='display:none'>Abstract</title> <p>The TTM (Total Traceability Management) is becoming a mandatory process requested by all OEMs (Original Equipment Manufacturing) as a system to be deployed by the relevant suppliers. Process parameters from the machines are gathered by the TTM software and based on a defined algorithm the product is receiving new statuses, as physical and software characteristics. Given the high complexity of the current process flows, the highly automated lines and cells, the increased amount of process parameters, the necessity of synchronizing various production steps, it is needed that a simulation process to be done in advance of the full process deployment. The paper work reviews both the mathematical apparatus that underlies the simulation, and one of the various available simulation programs in academia. It is used one of the most usual software for simulation SIMQuick which is based on statistical methodologies. SIMQuick performs a virtual simulation of the process being used in various areas of activity including production in automotive, automation, supply chain processes and services, providing the valuable data for the behavior of the process and providing the premises for layout, flows, and resources improvements. The supply chain software ERP requirements with TTM technical inputs and outputs are the data pillars for the simulation which are presented as a result of the research.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Applying Quality Improvement Approaches for the Control of Critical Medical Processes in a Healthcare Facility<abstract> <title style='display:none'>Abstract</title> <p>Healthcare facilities face major challenges as patients require for the continuous improvement of the healthcare quality. We have used as research method the study of the scientific literature from the medical databases, and we have identified the categories of processes that ensure the quality in a healthcare facility. It is drawn a detailed map of the basic medical processes which highlights the sequence and interaction of medical processes that take place on requesting patients until they become resolved patients. The particularization of quality improvement methods for the improvement of critical medical processes is presented. By using the Pareto diagram it is analyzed the adverse events associated with healthcare and by employment of Ishikawa diagram it is analyzed the causes of associated infections highlighting the factors that contributed to the increase of confirmed healthcare associated infections, which are assigned to the hospital information system and the hospital monitoring system.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Challenges in the Automotive JIS/JIT Production of Steering Wheels Involving Traceability<abstract> <title style='display:none'>Abstract</title> <p>The purpose of this article is to present the new challenges faced by the automotive industry and specifically by the steering wheel producers in terms of product design changes, process changes and the solution to solve them, the concept of TTM - Total Traceability Management. The article presents the traceability solution as a proved solution for managing JIS (Just in Sequency) &amp; JIT (Just in Time) manufacturing concepts in terms of customer demand sequence attainment, process sequence attainment, and technical test verifications. The research is based on case studies deployed in production facilities, in the companies TRW and Key Safety Systems. Both entities are steering wheel producers with JIS&amp;JIT conditioned production systems and are also using latest technology in synchronizing the traceability communication with various cars producers (Porsche, BMW, Daimler, etc.). This concept of manufacturing and delivery of the products to the famous automotive companies is crucial for the supplier including the base of business, because the entire work in this domain is completely automatic by robots. That means: all the final products (cars end others), including the components from different suppliers, also the technology of assembling, it need to be adapted in order to be performed by robots. The components as steering wheels, and many others, arrive at the assembling line at OEMs (Original Equipment Manufacturing) facilities and the robots work on directly the buffers with these components in order to ensure the continuous assembling process in the condition of total flexibility and without errors.</p> </abstract>ARTICLE2021-11-15T00:00:00.000+00:00Satellite-Derived Bathymetry Using Landsat-8 Imagery for Safaga Coastal Zone, Egypt<abstract> <title style='display:none'>Abstract</title> <p>Satellite-Derived Bathymetry (SDB) modeling is used to derive bathymetric data needed for enriching several applications including nautical charting. The nautical charts of Safaga port, Egypt, contains significant gaps as they are based on 50-years old hydrographic survey data and it needs an update. We applied the SDB algorithm (log-ratio approach) using multispectral Landsat-8 OLI images for extracting bathymetry to update the nautical charts of SAFAGA port. The results are verified against the old nautical chart of SAFAGA with a coefficient of determination (R<sup>2</sup>) varies between 0.42 to 0.71 in areas where hydrographic data are old, unavailable or costly to obtain.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Simulation of a Power System Considering Active Power Losses and Seasons<abstract> <title style='display:none'>Abstract</title> <p>In this paper is presented the simulation of a power system. The simulations performed are considering the seasons (spring, summer, autumn and winter). The system has 39 buses, 46 power lines, 13 generating units, 19 loads and 2 storage units. Of the 13 generating units, 3 are distributed generation sources based on renewable energy. There are also 2 battery storage units. The simulation considers the active power supplied by the generating and storage units, respectively the active power losses. The results give the power supplied by each generating unit for each season.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00PID Controllers Design within the Context of Online Educational Activities<abstract> <title style='display:none'>Abstract</title> <p>The problem of designing conventional controllers is a major concern in both academia and industry. The paper presents the implementation of a Matlab interface that facilitates the students’ understanding of the closed-loop control systems operation. There are four operating scenarios: with controllers for which the parameters are known; with controllers for which parameters are determined experimentally; with proportional controllers and additional poles/zeros introduction; with proportional controllers and serial compensator.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Constraints Identified in Technical Communication in the Online Environment – A Case Study Applied to Engineering Students<abstract> <title style='display:none'>Abstract</title> <p>The present paper presents the conclusions related to the approaches in which the online learning on the topic of technical education has influenced the quality of the way the information is conveyed. The paper presents a case study on a group of 10 students from each specialization of the Faculty of Engineering and Information Technology within the “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, approximately 10 months after the teaching activities have taken place exclusively online. The conclusions refer to a number of rules specific to technical communication and how they are used by the facilitators, namely by the teachers. The purpose of the paper is to identify the constraints related to the online environment, in the event that this system is practical and useful to future engineers as well</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Exploratory Factor Analysis for Identifying Comorbidities as Risk Factors Among Patients with Cied<abstract> <title style='display:none'>Abstract</title> <p>The emergence of SARS-CoV-2 affected care both for acute and chronic health conditions. Majority of the patients with cardiac implantable electronic devices (CIEDs) have multiple comorbidities, which can influence their response to COVID-19. An online survey consisting of 45 multiple-choice question was designed for CIED patients assessing comorbidities and overall health condition during September -December 2020. A multivariate analysis based on principal axis factoring (PAF) was performed on the eligible 184 survey response. Three factors were identified. Ten-year survival rates were calculated with Charlson Comorbidity Index. The extracted factors explained 66.1% of the cumulative variance and were consistent with medical literature data.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00A Simple PSO-Based Method for Power Distribution System Components Reliability Parameters Calibration<abstract> <title style='display:none'>Abstract</title> <p>In this paper, a proposed algorithm based on Particle Swarm Optimization (PSO) is used to present a simple method for data calibration of reliability indices in electrical power distribution networks. The main feature of the proposed method is its comprehensiveness, since the whole reliability indices can be calibrated using a proper objective function. In order to evaluate the effectiveness of the suggested algorithm, calculations are made on the well-known IEEE-RBTS Bus2 test system. The results confirm the simplicity and validation of the proposed method, and verify that by applying the proposed method, the computation speed for data calibration can be reduced as well.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Innovative Conceptual Design for Patentability. Case Study of the Double Compartment Thermos Container<abstract> <title style='display:none'>Abstract</title> <p>Any initial product started from a more or less flexible idea, or a patented idea transposed into a manufactured product. This idea takes a new development following the study of the marketing market, analysis studies and all we need for technological opportunity, outlining at the same time stage by stage the prototype concept. The prototype variant is again subjected to a systemic analysis that defines and optimizes the final product, as well as the technological flow associated with the entire manufacturing process applied on the concept. The paper proposes a synthesis analysis on innovative conceptual design. The case study presented in this paper shows a reserch study applied on the industrial product for which the patent was obtained, respectively a double compartmented thermos container [17].</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Efficiency Analysis of Deeplearning4J Neural Network Classifiers in Development of Transition Based Dependency Parsers<abstract> <title style='display:none'>Abstract</title> <p>Dependency parsing is a complex process in natural language text processing, text to semantic transformation. The efficiency improvement of dependency parsing is a current and an active research area in the NLP community. The paper presents four transition-based dependency parser models with implementation using DL4J classifiers. The efficiency of the proposed models were tested with Hungarian language corpora. The parsing model uses a data representation form based on lightweight embedding and a novel morphological-description-vector format is proposed for the input layer. Based on the test experiments on parsing Hungarian text documents, the proposed list-based transitions parsers outperform the widespread stack-based variants.</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Air Quality Indices - Case Study: Environmental Sustainability Pillar and Romania’s Positioning in the European and Global Context<abstract> <title style='display:none'>Abstract</title> <p>Daily exposure to ambient air pollutants harms human health and the environment. Even though in recent years air quality is a taboo subject discussed and researched by many interested areas, pollution indices often exceed the pollution norms imposed by the authorities in major European cities. In response to these environmental problems, the European Union has created a body of legislation on pollution indicators. On the other hand, World Economic Forum promote the travel tourism competitiveness index (including the pillar of environmental sustainability). The purpose of this paper is to present and analyse the indicators from the environmental sustainability pillar within TTCI (Travel and tourism competitiveness index) and the air pollution indicators, respectively the air quality standards and the pollution norms. As a short result, România exceeds at some indicators and has a lot to improve at the others (Enforcement of environmental regulations).</p> </abstract>ARTICLE2021-05-29T00:00:00.000+00:00Buckling Analysis of Innovative Corrugated Column by using Response Surface Methodology<abstract><title style='display:none'>Abstract</title><p>Tubular steel structures with slender compression cross-sections are prone to local buckling. In this paper the axial compression is investigation of the innovative fabricated structural steel column consisting of sinusoidal corrugated pattern. When it comes to the design of compressive individuals, buckling is a crucial layout provision. The paper describes the effect of variation in the sectional properties like mean diameter, thickness, amplitude, and frequency of corrugation on the buckling axial load. A quadratic model was developed to correlate the independent variables for maximum buckling load by using central composite design (CCD) method. Subsequently ANOVA, a statistical tool is used to analyse and compare the different combinations and finding the most influential factor on buckling load. Response surface methodology is adopted to review the interaction models between the different combinations.</p></abstract>ARTICLE2020-12-12T00:00:00.000+00:00Aspects Regarding the Online Modular Education System Compared with the Classical Onsite System<abstract><title style='display:none'>Abstract</title><p>In according with the situation created by the pandemics of the world [4,6,7,8,9,10], the Covid-19 viruses were affected the all fields of activity from the all domains, like as: industrial domains, tourism, commercial, even of the educational system at all levels [1,2]. In this context our university, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Targu Mures, it had to move from the classical educational system to approach of the new online modular system. This forced adaptation presents a lots of problems, especially of the all specializations within the Faculty of Engineering and Information Technology, where there are practical activities that involve laboratories with practical execution they cannot be performed by the online system. After an experience gained of almost 4 months of online activity, more several negative aspects are configured to be analyzed in order to find constructive solutions for optimizing the online educational system [1]. The present paper proposes to identification of a questionnaire addressed for the students as well as to the teachers from the Faculty of Engineering and Information Technology of UMFST “G.E.Palade” of Tg.Mures. Following the analysis of the all results of the questionnaire, the deficiencies of the problems raised by the technical disciplines that require phisicals practical applications in laboratory classes will be identified, respectively new directions for the development of modular online education will be identified representing the only alternative of the onsite classic education in this situation.</p></abstract>ARTICLE2020-12-12T00:00:00.000+00:00en-us-1