Technium Romanian Journal of Applied Sciences and Technology

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EISSN : 2668-778X
Total articles ≅ 114
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Lizbeth Beltran, , Virginia López-Nevárez, Raul Portillo-Molina, Jesús Damián Cordero-Ramírez, Victor Manuel Peinado-Guevara
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 11-25; doi:10.47577/technium.v3i5.3775

The operative context in which companies are currently developing has changed, moving towards a sustainable environment; innovating and migrating towards a business model focused on sustainable management leads to a better economic, environmental and social performance of the organization. The objective of this research is to diagnose the administrative practices carried out in the shrimp farming sector of the municipality of Guasave, Sinaloa, in relation to sustainable management. The research is based on a qualitative approach, through a multi-case study strategy applicable to 6 companies located in the study area, with an exploratory, explanatory, documentary and non-experimental scope. Categories are defined according to the three main themes of the research: management factors in the organization, commercial management and sustainability management. The results show that there are notions of the importance of the management of factors aimed at sustainability, however, there is still a vague ecological awareness in the sector. It is concluded that it is essential for the shrimp farming sector to develop strategies and guidelines aimed at achieving sustainable management, which will allow meeting the requirements of national and international organizations and the creation of economic and non-economic value.
Lucian Lupsa-Tataru
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 39-48; doi:10.47577/technium.v3i5.3881

Implementation of the cross-fade audio effect requires shaping the fade profile for a certain audio content that is to be faded out, as well as customizing the audio fade for an additional audio content, which is to be faded in, with the purpose of achieving a smooth transition between the two different audio contents. Similar to the case of applying adjustable fades, the audio cross-fades are usually carried out in the off-line mode, by employing various transcendental functions to shape the audio fades (both fade-out and fade-in effects). To improve the computational capabilities by minimizing the delay between receiving the position within the cross-fade effect and returning both the volume of the faded out section and the volume of the faded in one, we consider that, during the cross-fade effect, the audio volume of each of the two overlapping sections is the output of a rational function i.e. a mapping defined by a rational fraction. A plain HTML5/JavaScript implementation, prepared to be tested in any major browser, is advanced in the paper in order to highlight the suitability of the suggested approach to audio cross-fade customization with real-time computing.
Ali I. Hameed, Lokman A. Abdulkareem, Raid A. Mahmood
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 49-63; doi:10.47577/technium.v3i5.3938

Two-phase flow behaviour and its flow patterns have a significant effect in many applications in industry. Oil-gas is one of the two-phase flow types that have many applications in petroleum and power stations. An oil-gas two-phase flow behaviour and flow patterns have been investigated in an inclined pipe using two different tomography sensors: Wire Mesh sensor (WMS) and Electrical Capacitance Tomography (ECT). A special experimental facility was designed and built to operate the tow-phase flow application in the inclined pipe with the various angle of inclination. A set of experimental data were collected using operating conditions which covered a two-phase flow range of superficial velocity of gas (Usl) from 0.05 to 0.52 m/s and superficial velocity of liquid (Usg) from 0.05 to 4.7 m/s at atmospheric pressure and room temperature. Three inclined angles to change the pipe’s inclination 45, 60, and 80-degree were applied in the experiments. The Comparison between the Wire Mesh Sensor (WMS) and Electrical Capacitance Tomography (ECT) was completed experimentally. The results revealed that there is a good agreement between the two sensors, however; the WMS had a higher frequency which was calculated 1000 frames per second compared with the ECT which worked at 200 frames per second.
, María Del Carmen Delgado Laime, Fidelia Tapia Tadeo, Fredy Taípe Pardo, Juan Alarcón Camacho
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 26-32; doi:10.47577/technium.v3i5.2711

Thechange in eating habits and responsible production systems leads to reduced environmental impact. The objective of this research was to study dietary and environmental behavior in university students in Andahuaylas province during the confinement of Covid-19. The study was cross-cutting through the use of data collected online through an anonymously resolved questionnaire, scheduled from July 18 to August 30, 2020 in the Apurímac-Peru region. In which 390 undergraduate students between the age of 18 and 28 participated. The questionnaire was divided into 03 sections: sociodemographic characteristics, dietary practices and environmental-related behavior during covid-19 confinement. In the study se found that 65.8% of students reported healthier dietary practices during covid-19confinement, in terms ofgender, women consistently consumed tubers (85.7%), vegetables (73.5%), fruits (61.2%), Andean grains (49.0%), compared to males who reported lower consumption. As for environmental behavior, respondents indicate that organic foods were healthier and more environmentally friendly to local food.
Mazen Ismaeel Ghareb, Gary Allen
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 82-99; doi:10.47577/technium.v3i3.3261

This paper explores a new framework for calculating hybrid system metrics using software quality metrics aspect-oriented and object-oriented programming. Software metrics for qualitative and quantitative measurement is a mix of static and dynamic software metrics. It is noticed from the literature survey that to date, most of the architecture considered only the evaluation focused on static metrics for aspect-oriented applications. In our work, we mainly discussed the collection of static parameters , long with AspectJ-specific dynamic software metrics.The structure may provide a new direction for research while predicting software attributes because earlier dynamic metrics were ignored when evaluating quality attributes such as maintainability, reliability, and understandability of Asepect Oriented software. Dynamic metrics based on the fundamentals of software engineering are equally crucial for software analysis as are static metrics. A similar concept is borrowed with the introduction of dynamic software metrics to implement aspect-riented software development.Currently, we only propose a structure and model using static and dynamic parameters to test the aspect-oriented method, but we still need to validate the proposed approach.
Zeravan M. Mosa, Erhan Akin
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 100-112; doi:10.47577/technium.v3i3.3181

This paper illustrates the design of a system to identify objects on a conveyor belt using machine vision. In the present study, a machine vision based on one line scan sorting was developed, the purpose being to sort objects based on various stages of maturity. Many different methods are available for object identification. But we made design a system that separates and counting them. Different objects placed on the conveyor belt moves along, a camera placed above the belt takes real-time video and feeds it to the MATLAB software for processing the object to compare with the basic template object. The vision camera understands an object based on its physical attributes, such as shape and size for effectively controlling the hardware, which will use in this work. Besides, the number of objects of a particular section that cross the conveyor to demonstrate the identification of moving objects is counted and displayed. A low-speed conveyor belt is manufactured with various test objects that pass through it. For identifying a good object, the wavelength data is used, determining the way to match the geometric patterns and to identify the dimensions, and edge detection is applied. The ability to count specific attributes objects is testing different test paths. The sorting of objects using machine vision was performed using an algorithm of pattern matching of machine vision. A pattern image template was built and stored in a computer's memory. When the object is sorting the application run, the camera receives the image of the object into MATLAB. The vision application investigates the image and transfers it to the classifier if the received image matches the model image or not matches.
Ladan Arman, Yuanming Xu, Long Liping
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 67-82; doi:10.47577/technium.v3i2.1983

In this paper, based on the efficient Conjugate Descent (CD) method, two generalized CD algorithms are proposed to solve the unconstrained optimization problems. These methods are three-term conjugate gradient methods which the generated directions by using the conjugate gradient parameters and independent of the line search satisfy in the sufficient descent condition. Furthermore, under the strong Wolfe line search, the global convergence of the proposed methods are proved. Also, the preliminary numerical results on the CUTEst collection are presented to show effectiveness of our methods.
Ali Said Musallam Jaboob, Mohammed Said Jaboob
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 156-166; doi:10.47577/technium.v3i1.2743

Strategy formulation is an old practice that cuts through business and politics. The earlier human species have been regarded as the proprietors of strategy formulation as a part of existence. Therefore, the paper aims to evaluate strategy as a management discipline. In doing so, a qualitative research approach will be employed to analyze a variety of concepts in strategic management. The historical perspective of strategy formulation, as well as the importance of strategy in the modern-day business context, is discussed. Moreover, the emergence of strategy, strategic management, and planning in the business perspectives will be analyzed. Ultimately, this paper aims to demonstrate the importance of strategic management as a skill that would guide job-seeking graduates to work in organizations best suited for them.
Jargal Dorj
Technium Romanian Journal of Applied Sciences and Technology, Volume 3, pp 88-103; doi:10.47577/technium.v3i1.2557

In this paper, we will prove the Buddhist teaching that good deeds/actionlead to happiness and bad deeds lead to suffering has a scientific verification by using an optimal control theory branch of mathematics.TheBuddhist teaching considers thatBuddha is a good mind/soul with information about good deeds or good karma. Here we will prove this view has scientific evidence as a theorem.
Kennedy Fohoue-Tchendjou, Vivient Corneille Kamla, Laurent Bitjoka
Technium Romanian Journal of Applied Sciences and Technology, Volume 2, pp 64-76; doi:10.47577/technium.v2i7.1616

Investigations in this paper concern management of Hybrid Renewable Energy systems. To achieve it, a supervisory system based on hybrid systems concept is designed, in order to ensure power flow between energy generators (solar panel and pico-hydroelectric), batteries and load. Differential Hybrid Petri Net is used to model the proposed supervisory and simulations are made in Matlab environment.Results obtained present a good performance criteria Loss of Power Supply Probability, and this show the effectiveness of our approach in the coordination of HREs components during the energy sharing process by reducing load shedding in microgrid system.
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