<abstract xmlns="http://www.w3.org/1999/xhtml">

The aim of the study is to determine the effects of the preheated coriander seed oil, used as fuel, on the performance and the emission characteristics of the ceramic coated single-cylinder diesel engine. In this study, the piston, exhaust, and inlet valve of a single-cylinder air-cooled diesel engine were coated with Cr3C2 at 300 µm thickness. Pure coriander oil was mixed with diesel fuel volumetrically at the rates of 30% and 50%. The plasma spray method was used as the coating method. It was determined that the preheating process provided a more suitable fuel flow, decreased the viscosity of the coriander oil and also the coating process decreased CO, soot and HC emissions but increased NOx, thermal efficiency, and EGT.
</abstract>

Experimental Examination on Performance and Emission of a Coated Diesel Engine Fueled with Diesel and Pre-Heated Coriander Oil Blends

<abstract xmlns="http://www.w3.org/1999/xhtml">

In modern communication systems, dielectric resonator antennas (DRA) play an important role due to its several advantages over contemporary antennas. In this paper, novel flower-shaped multiple input multiple output (MIMO) DRA is proposed for wireless applications in X- band. The proposed antenna with four ports displays more than -15 dB isolation between ports with defected ground technique. The antenna exhibits 7.2-7.5 GHZ impedance bandwidth and 4.66 dBi gain at 7.3 GHz. MIMO performance parameters: Envelope Correlation Coefficient (ECC) and Diversity Gain (DG) of the proposed antenna are also studied and calculated.
</abstract>

Novel Flower-Shaped Multiple Input Multiple Output Dielectric Resonator Antenna

<abstract xmlns="http://www.w3.org/1999/xhtml">

The Pb(Mg1/3Nb2/3)O3-based ceramic system was obtained by using a modified variant of the conventional ceramic method in order to get pyrochlore-free compositions. Solid solutions obtained from Pb(Mg1/3Nb2/3)O3 and Ln(Mg1/2Ti1/2)O3 with Ln = Y3+, La3+, Pr3+, Nd3+ and Sm3+, were synthesized using a 3-step columbite precursor method and appropriate milling and sintering conditions. The structural phases of all sintered compositions were investigated in detail. The X-ray diffraction results demonstrate that all the samples possess a perovskite structure. The influence of dopant on the incorporation degree in the solid solutions was studied. The dielectric constants at three frequencies were measured and the influence of the dopant on these values was discussed.
</abstract>

Obtaining and Characterizing the Pb(Mg1/3Nb2/3)O3–Ln(Mg1/2Ti1/2)O3 Doped System

<abstract xmlns="http://www.w3.org/1999/xhtml">

The field of engineering is a complex and well-developed one and thus offers various opportunities to students. Design engineering is a branch of this field that has several categories. The field of engineering involves logic and reason and imagination. The strength of 3D and 2D design is the engineer’s ability to see in space. This skill is cultivated over time and requires practice and work. Time management in favour of effort is also a very important aspect of engineering tool. Design develops with technology because nowadays everything is designed in 3D/2D CAD and CAM space. Thus, technology is the basis of computer-aided design and manufacturing. Automotive design engineering involves continuous study and analysis of the CAD working environment (programs such as CATIA, NX Siemens), the processes to be performed (welding, marking and checking stations) and the materials that can meet the project requirements (such as C45 and PA6).
</abstract>

Study and Analysis, the Partnership that Reveals the Best Solutions

<abstract xmlns="http://www.w3.org/1999/xhtml">

The common values of a circular economy are concentrated in decoupling economic growth from resource consumption; resource efficiency; waste management; sharing; reducing greenhouse gas emissions; lifecycle assessments and closing loops. With the increasing cost of natural resources as a real EU scenario, industries will significantly benefit from shifting towards a more circular approach. The aim of this paper is to analyses the waste management actions, especially for construction and demolition sector, in Romania in the EU-28 context by applying statistical methods and neural network modelling to find the best macroeconomic predictor for recovery rate of construction and demolition waste for period 2010-2020.
</abstract>

Research & Development Department, Daw Bența Romania

“G.E. Palade” University of Medicine, Pharmacy, Science and Technology of Târgu Mureș

Macroeconomic Predictor for Recovery Rate of Construction and Demolition Waste. A Neural Networks Model for Romania

<abstract xmlns="http://www.w3.org/1999/xhtml">

Serious problems are on the rise, especially in these current times. The world is facing too many environmental threats. Water pollution is one of the main issues threatening the future. In some parts of the world, the water’s surface is covered by mucilage, which is dangerous for both aquatic animals and humans. This article firstly defines mucilage and highlights the reasons for its production. Afterwards to tackle water pollution, cleaning systems using image detection with the help of machine learning supervised classification algorithms are highlighted. This paper showcases the machine learning and classification used as well as the best solution for convolutional neural network and region-based convolutional neural network methods.
</abstract>

Electronics Communication Engineering Department

Department of Electrical and Electronics Engineering

Underwater Image Detection for Cleaning Purposes; Techniques Used for Detection Based on Machine Learning

<abstract xmlns="http://www.w3.org/1999/xhtml">

The Internet of things (IoT) is playing an important role in nowadays world due to its ability in describing physical objects with sensors that leads to exchanging data with other devices. For this case, we use the IoT technology in this study for solving the daily feeding problem of domestic animals and offering practical solutions to pet owners leads to respond to all requests that may be needed during the regular feeding of our pets. These requests can be pouring the determined amount of food into the pet’s food container at the specified time intervals, controlling this process via the phone application created, giving an extra food with a button if desired, checking whether the pet has eaten the food by means of the weight sensor and informing the user via the phone application when necessary, controlling the pet or the environment with the camera, controlling the amount of food in the food storage tank via the ultrasonic distance sensor and informing the user. For validating this technology, we develop this method systematically and examine with practical development.
</abstract>

Electrical and Electronics Engineering Dept.

Iot and its Benefit in Feeding Domestic Pets

<abstract xmlns="http://www.w3.org/1999/xhtml">

Supply chain management and logistics are two concepts between which there may be differences and common aspects. The purpose of this article is to describe the two concepts as well as a comparison between the common aspects and the differences between them. The term logistics is an older term and on the other hand the term of supply chain management refers to several processes. Logistics is an activity in supply chain management. There are many differences between them, but also many common aspects but both are inseparable. Therefore, they do not contradict each other, but complement each other. Supply chain management helps logistics to stay in touch with the transport, warehousing and distribution team.
</abstract>

IOSUD Doctoral School,“George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș

Faculty of Engineering and Information Technology

“George Emil Palade” University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș

Key Differences and Common Aspects of Logistics and Supply Chain Management

<abstract xmlns="http://www.w3.org/1999/xhtml">

The purpose of this paper is to give some extensions of Steffensen’s method to the space ℝ<italic>n</italic>.
</abstract>

Extensions of Steffensen’s Method to the Space ℝ<italic>n</italic>

AHEAD OF PRINT

Volume 20 (2023): Issue 2 (December 2023)

Volume 20 (2023): Issue 1 (June 2023)

Volume 19 (2022): Issue 2 (December 2022)

Volume 19 (2022): Issue 1 (June 2022)

Volume 18 (2021): Issue 2 (December 2021)

Volume 18 (2021): Issue 1 (June 2021)

Volume 17 (2020): Issue 2 (December 2020)

Volume 17 (2020): Issue 1 (June 2020)

Volume 16 (2019): Issue 2 (December 2019)

Volume 16 (2019): Issue 1 (June 2019)

Acta Marisiensis. Seria Technologica

 Acta Marisiensis - Seria Technologica is an open access international scientific journal of the Faculty of Engineering and Information Technology of the University of Medicine, Pharmacy, Sciences and Technology of Târgu Mureș, which is published by the University Press under the CC BY 4.0.   Acta Marisiensis - Seria Technologica aims to meet the demand for an international journal bringing together all aspects of research from different areas of knowledge in engineering technologies. The journal fulfils this aim by publishing the original research papers of prominent international researchers. The published articles are discussed in terms of concepts, state of the art research, standards, implementations, running experiments, applications, and industrial case studies. Topics cover a wide range of engineering subjects like: manufacturing, nano and micro technology, information systems, advanced software technology, parallel and distributed computing, power and energy systems, electronics and electrotechnology, optimization techniques, signal and image processing, quality control technology.  Acta Marisiensis - Seria Technologica is an open access journal with all content freely available on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, scrawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. The only constraint on reproduction and distribution, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited.This is in accordance with the BOAI definition of open access.Authors are not charged for the submission or processing of their papers.  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Acta Marisiensis. Seria Technologica

Volume 19 (2022): Issue 1 (June 2022)

Experimental Examination on Performance and Emission of a Coated Diesel Engine Fueled with Diesel and Pre-Heated Coriander Oil Blends

Novel Flower-Shaped Multiple Input Multiple Output Dielectric Resonator Antenna

Obtaining and Characterizing the Pb(Mg_1/3Nb_2/3)O₃–Ln(Mg_1/2Ti_1/2)O₃ Doped System

Study and Analysis, the Partnership that Reveals the Best Solutions

Macroeconomic Predictor for Recovery Rate of Construction and Demolition Waste. A Neural Networks Model for Romania

Underwater Image Detection for Cleaning Purposes; Techniques Used for Detection Based on Machine Learning

Iot and its Benefit in Feeding Domestic Pets

Key Differences and Common Aspects of Logistics and Supply Chain Management

Extensions of Steffensen’s Method to the Space ℝⁿ

Search

All Volumes and Issues in this Journal