bluuebunny/crossref_metadata_2025 huggingface dataset:
A new adaptive MPPT design for photovoltaic system under real outdoor conditions
Authors: Necaibia Salah , Necaibia Ammar , Bouraiou Ahmed , Kelaiaia Mounia Samira , Labar Hocine , Tourab Wafa
Published: November 2022

Renewable energy, especially solar photovoltaic (PV) panels, have been widely integrated into energy systems, indeed, this technology is eco-friendly and available almost everywhere. However, these systems exhibit some challenges in regards their performance. They must always track the maximum power point (MPP) to provide the highest power. This work investigates a novel maximum power point tracking (MPPT) procedure. In the suggested tracking system, a novel controller is applied to establish different operating regions. In both regions, the step is changed depending on the closeness to the MPP. Due to this technique, some disadvantages of the incremental conductance (IncCond) approach are avoided. The proposed method offers reliable and stable behaviour under rapidly changing atmospheric conditions. Moreover, it is easy as it does not need additional sensors. The theoretical assessment discussed in this investigation is validated by simulations via MATLAB/Simulink and experimental outdoor tests. A comparison with conventional MPPT approach is provided to emphasize the performance of the developed MPPT technique.
Bibliometric Analysis and Challenges in Biofuel Production using Petroplants
Authors: Pinkie Cherian , Devika Jayakumar , Majidha PA
Published: November 2022

A bibliometric analysis based on PubMed database were carried out to provide insights into research activities and tendencies, challenges of global biodiesel from 1997-2020.The document type and language,characteristics of publication output, keywords and most cited articles were emphasized. The biofuel production faces many challenges which include land availability, high cost, plant health and availability of labour. Data visualization using VOS viewer clearly stated that annual output of related scientific articles increased steadily. On analyzing the keywords, network visualization showed 100 lines with biofuel most related to biotechnology field.The most ideal keyword occurrence were visualized for bio-oil followed by co- digestion of biological matter are seen for density visualization. Six clustering of keywords were noted with links 20,6701 among keywords. The relevance score calculated using VOS viewer software generated 2.35 as score for Biodiesel engine and 2.25 for Organic loading rate. The analysis of review papers from pubMed clearly indicated that biofuels showed direct link to biotechnology field, plant oils and ethanol production.
Integrated spiral inductor with substrate silicon in a buck converter
Authors: Namoune Abdelhadi , Taleb Rachid
Published: November 2022

In this paper, we discuss the design and modelling of a spiral inductor with silicon substrate. The equivalent electrical model approved of the integrated spiral inductor acquires into account the inductance and quality factor. The performance of the inductance and quality factor values is supported on the mathematical study of the effect geometrical elements on the spiral inductor. The results simulation based on the MATLAB software. Finally, is discussing after simulation about the integrated spiral inductor into a DC-DC converter by PSIM 6.0.
A summary of methods to get parameters values of photovoltaic cells/panels
Authors: Tchoketch_Kebir Selma
Published: November 2022

This paper presents a summary and comparative study of methods used for getting electrical unknown parameters of photovoltaic cells/panels. The exact parameters values are essential for precise mathematical modeling, simulation, and control of the photovoltaic generation systems. The many different methods are presented, discussed, and classified (general, analytical, numerical, optimization, adaptive). For comparison purposes, for each category of classification, a comparison among the best ones of them is done. An evaluation is elaborated based on the several chosen objectives function existing for the optimization-based approach. Besides, the performance of each used method is analyzed in relations of some norms: accuracy, ease of implementation, speed of convergence, computational complexity and quality of the obtained results. An effective evaluation under various climatic conditions, for diverse technologies materials, and for different manufacturers was discussed. Some statistical analysis is used to choose the best precise quality of the fitting curves to the real data. Some critical analysis is done with some evaluations, which serve to elaborate on this survey and synthesis study, which will be useful for researchers in the photovoltaic topic.
Stratégie pour la maintenance prévisionnelle des systèmes photovoltaïques
Authors: Hassan Ali Mohamed , Haddad Sofiane
Published: November 2022

Cet article propose une stratégie de couplage entre deux processus, le pronostic et le diagnostic, basée sur le modèle OSA-CBM et appliquée au cas des générateurs photovoltaïques. Dans un premier temps, les principales méthodes de couplage : Watch Dog, PEDS, SIMP et OSA-CBM sont décrites. Puis, les avantages de la stratégie OSA-CBM en particulier ses sept couches spécialisées permettant l'interopérabilité des processus sont mis en avant. Suivant cette architecture, un système de monitoring fournissant les indicateurs de performance des GPV est mis en œuvre et les résultats sont utilisés pour l'aide à la prise de décision de maintenance. Enfin, l'évolution de l'indicateur de dégradation CPR et surtout de son taux de réduction (Rd), est utilisée pour le contrôle du couplage entre les processus. Cette approche est validée en utilisant des données expérimentales issues de quatre installations photovoltaïques (projet IEA PVPS Task13).
Potentiel énergétique éolien et profil de consommation d’énergie dans le village Wouro Kessoum Ngaoundéré Cameroun
Authors: Alphonse Sadam , Bikai Jacques , Tetang Fokone Abraham , Cesar Kapseu
Published: November 2022

Dans le cadre de la résolution du problème de déficit énergétique et de la pollution environnementale due aux énergies fossiles, l’utilisation des énergies renouvelables (ER) constitue une solution idoine. Cependant, l’instabilité de ces sources demeure une des limites considérables à leur exploitation. Notre travail porte sur l’évaluation du potentiel éolien en intégrant le paramètre de la densité massique locale de l’air. L’extrapolation de la demande d’énergie permet de prédire la solution envisageable. Le but de ce travail est de vérifier si l’énergie éolienne peut satisfaire à la demande d’énergie dans le village Wouro Kessoum. Les résultats montrent que ce n’est qu’entre 8 heures et 17 heures de la journée que la puissance récupérable satisfait à la demande d’énergie pour 195 ménages de ce village.
Analyse de la gouvernance Africaine du secteur de l’énergie
Authors: Bass Mbaye , Tchanche Bertrand
Published: November 2022

L’Afrique dispose de beaucoup d’atouts pour son développement dont ses ressources naturelles, et surtout énergétiques. Cependant, près de 600 millions de personnes y vivent sans accès à l’énergie, alors que le taux d’accès à l’électricité est particulièrement faible dans certaines régions comme en Afrique centrale, moins de 25%. Les causes sont nombreuses : absence de financements, de vision, de stratégie, de cadres compétents, etc. L’analyse des acteurs permet de dénombrer des entités (institutions, entreprises, groupements professionnels, consommateurs, bailleurs de fonds, etc.) qui défendent chacune ses intérêts et n’agissent pas en synergie. Des efforts d’intégration ont été entrepris depuis les années 1960, pour une concertation au niveau continental et surtout pour résister aux effets de la géopolitique. Toutefois, ces organisations continentales et régionales peinent à s’imposer, les États refusant de céder quelque partie que ce soit de leur souveraineté. Des initiatives ont été mises en place, pour accélérer l’accès des populations à une énergie moderne, mais celles-ci n’ont pas eu les résultats escomptés.
Ville saharienne et démarche participative : Contribution pour un développement local durable
Authors: Hanafi Abdelhakim , Alkama Djamel
Published: November 2022

Cet article se concentre sur l’appropriation concrète du développement local durable au niveau des villes sahariennes, par les acteurs et les participants (population locale) aux différents modes de gouvernance, de l’action et de la décision collective à la gestion et au développement de la ville. En se basant sur la lecture et l’analyse de différentes oasis au territoire algérien : leurs types, leurs systèmes et leurs modes de création, de structure, de gestion, de gouvernance, d’exploitation, de protection, etc. dans l’objectif d’instaurer une démarche participative contribuant au développement local durable des villes sahariennes présent et future
Modélisation de l’onduleur photovoltaïque connecté au réseau électrique
Authors: Hadj Arab Amar , Taghezouit Bilal , Abdeladim Kamel , Semaoui Smail , Boulahchiche Saliha , Razagui Abdelhak , Gherbi Akila , Bouacha Saida , Makhlouli Saida , Nemsi Salima , Djoudi Abdelhak
Published: November 2022

Ce travail présente un modèle mathématique d'onduleur pour les applications photovoltaïques connectées au réseau pendant le fonctionnement du système PV. L'étude a été réalisée pour les trois onduleurs du système photovoltaïque du Centre de Développement des Energies Renouvelables (CDER, Bouzaréah). Dans cette étude, le modèle d'onduleur Sandia (Sandia National Laboratories) a été utilisé. Un modèle simplifié est proposé. Il calcule la puissance de sortie AC de l'onduleur en fonction de sa puissance d'entrée DC
Analyse d’un écoulement monophasique turbulent en présence d’un mélangeur statique de type Kenics
Authors: Massinissa Hosni , Mhamed Hammoudi
Published: November 2022

L’acquisition de la perte de charge monophasique en utilisant un manomètre à tube à travers un mélangeur statique de type Kenics dans une conduite horizontale a été faite pour un Reynolds appartenant à l’intervalle [8116-18938]. L’approche considérant le mélangeur statique comme un milieu poreux structuré est appliquée sur le Kenics. Les paramètres intrinsèques du Kenics ont été calculés, et l’accord entre les pertes de charges théoriques et expérimentales confirme que l’approche est applicable sur le Kenics. Le taux de l’énergie dissipée et les constantes de temps caractéristiques du mélange ont été estimés en utilisant les pertes de charges recueillies. Des corrélations ont été proposées pour la perte de charge et le taux de l’énergie dissipée. Les constantes de temps caractéristiques ont été étudiées et le processus du mesomixing par dispersion turbulente a été identifié comme le processus gouvernant l’opération de mélangeage le long de tout l’intervalle de Reynolds.
Analyse comparative des ressources solaires de sites de centrales solaires thermodynamiques
Authors: Farsi Hichem
Published: November 2022

Le présent article est une contribution à l’élaboration d'une méthodologie d'évaluation de sites pouvant accueillir une centrale électrique solaire thermique à concentration (CSP). En particulier l'évaluation des ressources solaires de plusieurs sites potentiels est étudiée avec attention. L'irradiation solaire normale directe (DNI), nécessaire au dimensionnement des centrales CSP, est estimée à partir d'outils issus des mesures du rayonnement au sol ainsi que des estimations provenant de données satellites. Enfin, la méthodologie est appliquée sur un cas d'étude (dans le contexte Algérien) où il est aussi question d'évaluer des outils du rayonnement solaire pouvant être utilisés dans le cadre de cette méthodologie.
Assessment of Grid Connected PEM Fuel Cell Power System using Matlab/Simulink Stateflow models
Authors: Bahri Hamza , Harrag Abdelghani
Published: November 2022

This paper addresses the development of three-phase grid connected fuel cell energy system using Matlab/Simulink Stateflow environment. The proposed grid connected fuel energy system designed by considering a 5.5kW proton exchange membrane fuel cell connected to the grid via a double stage including a DC-DC boost converter and three phase inverter. The whole energy system has been implemented using Matlab/Simulink Stateflow environment where all the parameters and operating conditions have been considered. The proposed energy system has been tested and validated using Matlab/Simulink under different test scenario representing different operating conditions. Simulation obtained results prove the efficiency of the developed stateflow models to characterize and analyzing the PEM fuel cell power system as well as the connection to the grid. The developed models can be used as a platform to analyze the performance of the system in connected or unconnected cases.
Integration of PV Distributed Generator in Electrical Distribution System with Electric Vehicles Charging Stations Considering Uncertainties using Chaotic SSA Algorithm
Authors: Zellagui Mohamed , Lasmari Adel , Settoul Samir , Chenni Rachid
Published: November 2022

The penetration of renewable energy resource units in the Electrical Distribution System (EDS) has gradually increased. In addition to that, the interest in the electrification of the transport sector has brought about increasingly significant incentives for the integration of Electric Vehicles Charging Station (EVCS). In this regard, the planning of the installation of PV source-based Distributed Generation (DG) units in EDS considering EVCS should be carefully considered to avoid stressing the EDS. This paper applied various Chaotic Salp Swarm Algorithm (CSSA) based various chaotic maps methods with the multi-objective functions that are considered minimizing simultaneous the Active Power Loss (APL), the Annual Losses Cost (ALC), and the Total Voltage Deviation (TVV) in EDS. The proposed algorithms are tested on a standard IEEE 69-bus system that is used to demonstrate the feasibility of the CSSA algorithm in allocating the DG units by considering the uncertainty of the power delivered by the DG as well as the variation of load demand and EVCS in 24 hours. Furthermore, the overall EDS performances are also enhanced with simultaneous placement of both devices.
Effect of cavity orientation on solidification/melting process of n-eicosane phase change material
Authors: Iachachene Farida
Published: November 2022

In this paper, the melting and solidification of n-eicosane as a PCM inside two orientations of square containers is investigated numerically, using enthalpy–porosity method. The study reveals how the melting and solidification rate could be affected by changing the orientation of the phase change material container with a constant temperature boundary. It was found that the orientation of the square cavity has a significant effect on the melting and solidification rate of a PCM, the improvement is more than 40% for both cycles. Therefore the orientation of the heat exchange surface is a good control parameter for both the solidification and melting process
Détermination de la vitesse de séchage du Curcuma par analogie au modèle de sorption de Bradley
Authors: Randriafeno Rajonandrianina Laurencia , Ranarijaona Jean Désiré , Randriamorasata Josoa , Rasoanaivo Jean Luc
Published: November 2022

In Madagascar, the drying of Curcuma consists of exposing them directly to the Sun. This is not always productive. This work aims to provide information on the drying of turmeric by determining the drying curve in order to consider industrial drying. To do this, two steps were conducted: an experiment of drying and modeling of the drying curve by analogy with the empirical model of Bradley. This allowed obtaining the drying curve of Curcuma. The obtaining of this curve allows to predict the behavior of the product in the drying and so to define the necessary energy to bring to dry it and especially, to determine the duration of drying. All this will be able to lead essentially in the theoretical and technical calculations for the realization of the dryer and continuation of the feasibility study of such a project
Investigation of the major internal and external factors that affect photovoltaic modules energy production and systems performance
Authors: Zaghba Layachi , Khennane Messaouda , Borni Abdelhalim , Fezzani Amor
Published: November 2022

Photovoltaic conversion is an optimal solution for the electrification of rural areas, especially deserts for the abundance of solar energy in these regions. In recent years, many studies have been carried out to maximize the energy productivity of a PV array system and increase its efficiency. However, the arid and semi-arid region is characterized by a climate whose parameters significantly influence the operation of PV installations. This paper presents an overview investigation of the major internal and external factors significantly affecting both the efficiency and the performance of solar cells and the power of PV systems. These factors include the type of PV material, solar radiation intensity received, cell temperature, parasitic resistances, cloud, and other shading effects, inverter efficiency, dust, module orientation, weather conditions, geographical location, and cable thickness. Simulation of a PV system has been carried out in MATLAB-SIMULINK to prove the effectiveness of the proposed modeling method. These simulation results are useful to predict the production of the PV module under real operating conditions.
Electrical and Optical Characterization of Non-Hydrogenated a-Si/c-Si Heterojunction Solar Cells
Authors: Hafdi Zoubeida
Published: November 2022

This work deals with the performance of a heterojunction with intrinsic thin layer solar cell by sputtering silicon on p-type crystalline silicon substrate in argon ambient without hydrogen addition. This first effort was an attempt to use cost-effective means to convert light into electricity and to find fabrication processes which use fewer and cheaper materials for the fabrication of solar cells. Since transport mechanisms of amorphous silicon/crystalline silicon heterojunctions are still under investigation, the aim is to examine the behavior of the fabricated samples under electrical and optical constraints. Initial cell characterization includes electrical behavior via current-voltage characteristics and optical investigation via reflectance and absorptance measurements. Results are analyzed in a tentative to follow the absorption, generation and collection processes in the fabricated cell. The heterojunction interface is found to be a limiting factor in the cell performance. Under sun illumination, the open circuit voltage was 140 mV, the short circuit current was of 6 µA and the fill factor was of 42.56 %. Dark current-voltage characteristics indicated a tunneling and/or recombination carrier transport mechanism, while aborptance/reflectance measurements showed a generation process occurring in most in the crystalline silicon-side of the amorphous/crystalline silicon heterojunction. A carrier collection limitation is a very probable origin of the decreased cell generated current.
Ressources oléagineuses alternatives pour la production du biodiesel en Algérie
Authors: Amouri Mohammed , Aziza Majda
Published: November 2022

Le monde, actuellement, est confronté à deux crises majeures ; l’épuisement des ressources énergétiques fossiles accompagné d’une dégradation de l’environnement. Le biodiesel, c’est-à-dire les mélanges de mono alkyle d’esters d’acides gras obtenus par les procédés d’estérification d’huiles végétales, est un biocarburant d’origine renouvelable qui peut se substituer au gazole issu de ressources fossiles. En outre, le biodiesel est un biocarburant non toxique, biodégradable, doué d’une excellente lubricité et d’un bilan de carbone théoriquement nul. Le choix de la matière première pour la production d’un biodiesel propre et durable est crucial. L’Algérie, par son immense diversité en matière d’écosystèmes, dispose de ressources potentielles prometteuses qui ne demandent qu’à être valorisées et développées. L’objectif de ce travail est de présenter quelques espèces végétales rencontrées à l’état sauvage en Algérie et parmi lesquelles les espèces Pistacia lentiscus, P. terebinthus, P. atlantica et Salvadora persica, qui peuvent être considérées comme sources prometteuses pour la production du biodiesel dans une perspective de développement durable et de valorisation des ressources locales.
Lab performance testing of a small Banki-Michell hydraulic turbine for remote applications
Authors: NIYONZIMA Jean Bosco , Hendrick Patrick
Published: November 2022

For decades, hydropower has been the most important renewable energy source in the world. The use of Banki-Michell turbine (B-M) in small hydropower constitutes an attractive solution for rural electrification in developing countries and off-grid applications. This robust turbine is easy to design and to construct and not expensive. A test bench (JLA 29) for remote applications was installed at the Aero-Thermo-Mechanics Department of the Brussels Polytechnic School of ULB to test this type of turbine. This paper aimed to present the efficiency results of the installed Banki-Michell turbine test bench for remote applications and these results helped to design a typical turbine adapted for remote sites such as the Ryamukona site located in Burundi. Two series of B-M turbine tests were carried out, by varying the flow rate using the turbine control valve opening placed inside the distributor and also by controlling the turbine speed using a Sinamics S 120 drive. The efficiency of the turbine varies between 40 and 60% for a flow range varying between 15 and 20% of the nominal flow. According to the tests made with a discharge above 20%, the efficiency of the turbine can reach easily 75 %. Based on this turbine efficiency, a typical B-M turbine of an electric power of 79.5 kWe turbine was designed for Ryamukona site which is a remote site located in Burundi.
Study of mixed convection in a horizontal cylindrical pipe partially filled with a porous medium saturated with a single fluid
Authors: Houichi Amira , Ghodbane Hassina , Soudani Azeddine
Published: November 2022

The three-dimensional numerical simulation of laminar mixed convection heat transfer with and without porous medium in a cylindrical duct was carried out in this study. The cylinder is divided into three parts. The first and the third parts are adiabatic, while the central part is subjected to a constant heat flux. The effects of Darcy number, porosity, permeability and Nusselt number on heat transfer were considered. This problem is modeled by the Navier-stokes equations in the fluid region and by the Darcy-Brinkman-Forchheimer equation in the porous region, and for the thermal field the energy equation is used. The resolution of these equations was performed by the computational fluid dynamics code Ansys15.2 software using finite volume approach. The obtained results showed an accumulation of the hot fluid with stratification in the upper part of the pipe while the lower region of the pipe remained at practically constant temperature. The effect of the porous matrix is very noticeable on the velocity profile. The insertion of a porous high permeability medium significantly improves heat transfer.
Evaluation of the Wind Power Potential in the Northeast of Chad
Authors: Nediguina Mahamat Kher , Mahamat Tahir Abakar , Barka Mahamat , Soulouknga Marcel Hamda , Nsouandele Jean Luc
Published: November 2022

Chad has done the study and development of renewable resources a priority in its energy mix. Wind energy is one of the renewable sources that can help Chad to develop rural areas and preserve the environment. This study presents from data obtained from NASA, the wind characteristics in Amdjarass, and Fada over thirty (30) years. The wind distribution density and energy potential at different heights were evaluated using the Weibull statistical analysis method. The aim of this paper is to evaluate the wind energy potential of two important sites in Chad. The study shows that over the 30 years, the mean annual wind speeds vary randomly between 4.7 m/s and 5.4 m/s over an average period of 2 years. Eight months of good average wind speeds were recorded, ranging from 5.01 m/s to 6.31 m/s at Amdjarass and 4.92 m/s to 5.70 m/s at Fada. The 04 months of low velocities observed are in the range of 3.211 m/s - 4.064 m/s at Amdjarass and 3.504 m/s - 4.516 m/s at Fada. The power density varies between 21.53 W/m2 and 111.89 W/m2 in Amdjarass, while in Fada, it varies from 19.85 W/m2 to 86.92 W/m2.
Vietnam's War Against COVID-19
Authors: Luong Hy V
Published: November 2022

Vietnam effectively controlled the Covid-19 pandemic until April 2021, and faced great challenges afterwards, partly due to the spread of the highly transmissible Delta and Omicron strains of the coronavirus. Adopting Joel Migdal's "state-in-society" approach, this article focuses not
on the impact of regime type, but on the fear-driven tension and the process of negotiation among different levels of the state apparatus and between state and society during the covid-19 pandemic in Vietnam. The evolution of this pandemic was shaped not only by state measures but also by
citizens' fear-driven situational variation in norm compliance, as well as by the historical and cultural backgrounds of a society, specifically the wide sharing of war experiences and the war metaphor in Vietnamese society, and the non-negative meaning of face masks in daily life.
Interpretation of dynamic parameters of local anomalies of refracted waves
Authors:   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan, Novruzov A. G. , Aliyeva U. J. ,   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan, Alaskarov E. A. ,   «OilGasScientificResearchProject» Institute, SOCAR, Baku, Azerbaijan
Published: November 2022

The «common contour point» (CCP) technique for finding oil and gas deposits is based on identifying simple local minima on the graphs of the amplitude and energy of seismic waves passing through the reservoir. Simple local minima according to the CCP technique are provided by the identification of crossline profile geophones, the stability of the critical angle of the refracted wave, minor changes in the geometric divergence of seismic waves and the source-receiver distance. Other anomalies caused by local inhomogeneities of the geological environment are overcome based on the correlation of the dynamic parameters of waves recorded from different directions in the crossline profile. The article experimentally demonstrates obtaining simple minima by eliminating the distorting effect of local heterogeneity in the upper part of the section, determining the corresponding characteristic points of minima, as well as the contour and depth of the predicted reservoir. Keywords: oil and gas reservoir; direct search; seismic wave amplitude; local anomaly; «Common contour poin» technique.
ANALISIS FAKTOR YANG BERHUBUNGAN DENGAN UPAYA PENCEGAHAN ANEMIA SAAT MENSTRUASI PADA REMAJA PUTRI DI SMA NEGERI KABUPATEN SOPPENG
Authors: Kas Sri Rezkiani , Musyahidah Mustakim
Published: November 2022

Many young women do not know and realize that they have anemia, even though they know that they have anemia, they still think that anemia is a trivial problem. Young women are prone to anemia. The existence of a monthly menstrual cycle is one of the factors that cause young women to be prone to anemia, moreover, driven by their lack of knowledge about anemia. This study aims to analyze the factors associated with the prevention of anemia during menstruation in adolescent girls at Public High School Soppeng Regency. The type of research used is descriptive correlational research with a cross sectional approach. Based on the results of the analysis showed that there was a relationship between knowledge (0.000) and efforts to prevent anemia during menstruation. Researchers suggest for health workers to increase counseling and counseling as well as guidance for young women to prevent anemia.
FAKTOR - FAKTOR YANG BERHUBUNGAN DENGAN KELUHAN CARPAL TUNNEL SYNDROM PADA PEKERJA INFORMAL
Authors: Pratiwi Adhinda Putri , Tenri Diah T. A.
Published: November 2022

Occupational diseases caused by relationships or caused by work or attitudes at work. One of the occupational diseases is carpal tunnel syndrome. Carpal Tunnel Syndrome (CTS) is a disorder due to compression of the median nerve in the carpal tunnel at the wrist with the main symptoms of tingling and pain that radiates to the fingers and hands innervated by the median nerve, accompanied by numbness, muscle weakness, stiffness and possible atrophy muscle. This study aims to determine the relationship between repetitive motion and length of service with complaints of carpal tunnel syndrome. The type of research used is cross sectional using a descriptive approach. Based on the results of the analysis showed that there was a relationship between repatative movements (0.008) and years of service (0.001) with complaints of carpal tunnel syndrome. It is recommended that workers are expected to maintain the frequency of repetitive movements and arrange rest periods while working
A Low-Cost Laboratory Practice for Fundamental Learning of Wireless Digital Communication
Authors: Dutono Titon , Santoso Tri Budi
Published: November 2022

Several studies have shown that the main challenge in teaching complex systems involving many theoretical backgrounds to senior students is their lack of confidence. In this paper, we present an approach to the teaching methodology of an undergraduate course in a telecommunication study program. The first goal of this methodology is to help students understand the theoretical concepts behind wireless digital communication systems through direct practice to give them more exposure to a real system through affordable practice activities in an experiential context, utilizing an HF radio and a single-board computer (SBC). The second goal is to challenge senior students to understand the data link layer by using white box testing of the syntax of the programming language embedded in the SBC. This approach is ideally carried out based on offline and hands-on class activities, however, the pandemic condition made it unavoidable to do it online using a demonstration model. Feedback from students was collected through written comments, post-testing, including a facility index analysis, and a questionnaire that was distributed using the available e-learning system. The post-test results showed that the average score was 72 out of a maximum of 100.
Accreditation of professional skills and their relationship with quality in health
Authors: Cancino Daniella
Published: November 2022

Quality in health is measured through indicators, which show its status, considering its different attributes, one of them being professional competence. The importance of the certification of the development of competencies in the training process of future health professionals and its impact on the quality of services, poses a challenge and has great relevance at the level of individual providers, professional societies and higher education institutions. The accreditation of professional competencies is a necessary element to promote the improvement of the quality of health care in Chile, so the certification of these scientific-technical competencies could become one more tool for assuring the quality of health care
Gerakan “Aku Senang Membaca” Melalui Pembentukan Taman Baca Anak Serta Pelatihan Membaca dan Health Literacy
Authors: Nurhasnah  , Viviandhari Daniek , Maifitrianti
Published: November 2022

Indonesian children still have limited access to books, and reading activities have not become a culture in Indonesia. This problem worsens with the Covid-19 pandemic because many schools were closed or changing the method to learning from home. In addition to reading, health literacy is also crucial during this pandemic. This service activity aims to increase interest in reading through training and establishing the children's reading park. The method used was training and diffusion of science and technology. The training was conducted online through video conferencing applications and live streaming via popular video sites. Evaluation of activities was carried out using a pre-test and post-test. More than 80 participants joined the training activities. From the questionnaire results, there was an increase in the average score of the participants after receiving the training. The children's reading park has been formed and is ready to be opened to the public. The procurement of books was carried out through grants from donors, and more than 300 reading books were collected.
Pelatihan Konseling Kelompok Pembayangan Terbimbing Berfokus Solusi pada Guru BK SMP di Kota Batu
Authors: Ramli M , Hidayah Nur , Rahman Diniy Hidayatur , Saputra Nur Mega Aris , Hanafi Husni
Published: November 2022

The low group counseling skills at the Guidance and Counseling Teacher Consultation (MGBK) in Batu City is indicated by the intensity of conducting group counseling services. In fact, the more complex the problems faced by students require steps and innovations for counselors in the implementation of services. The purpose of the training is to develop the competence of counselors in understanding and applying the skills of solution-focused guided imagery group counseling. The training implementation method uses structured learning with stages of preparation, assessment, implementation, and evaluation (3PE). The results of the training showed that the trainees were enthusiastic about the implementation of the training and the evaluation of the results showed an increase in the application of solution-focused guided imagery group counseling.
THE IMPORTANCE OF RURAL TOURISM FOR THE SUSTAINABLE DEVELOPMENT OF MONTENEGRO
Authors:   Univerzitet „Adriatik”, Bar, Crna Gora i Agencija „Sword”, Smolović Sanja
Published: November 2022

The aim of the research is to examine the attitudes of respondents related to the problem of rural development and the importance of rural tourism from the aspect of sustainable development of Montenegro. The sample consisted of 150 respondents living in rural areas of Montenegro, including households already engaged in rural tourism, as well as those who plan to engage in and participate in the development of rural tourism. The research was conducted in May 2021 in rural areas of Montenegro. The results obtained by the research show that ecotourism is associated with the concept of sustainable tourism; In order to contribute to the development of rural tourism, it is necessary to improve living standards in rural areas, increase public awareness and participation, and include rural tourism in regional initiatives.
INTERNAL CONTROL AND COMPUTER ENVIRONMENT
Authors:   Univerzitet u Kragujevcu, Fakultet za hotelijerstvo i turizam u Vrnjačkoj Banji, Mitrović Aleksandra , Ognjanović Jasmina ,   Univerzitet u Kragujevcu, Fakultet za hotelijerstvo i turizam u Vrnjačkoj Banji, Milašinović Marko ,   Univerzitet u Kragujevcu, Fakultet za hotelijerstvo i turizam u Vrnjačkoj Banji
Published: November 2022

The increasing development of information technologies and their application, imposes more and more questions and related risks. Internal control brings great benefits to all company activities, but there are also risks associated with it. The advantages of using information-communication technologies are multiple, but the computer environment, in addition to numerous advantages, has also led to many problems. This paper examines internal control in a computer environment. The advantages and disadvantages of internal control are pointed out and the ways of future research of these topics. The conclusion is that the internal control system has been raised to a higher level in the computer environment. The higher level of development opens new questions, and new opportunities and problems arise.
Agency Theory: Its Discourse and Practice in the Selected Public-Sectors
Authors: Mengiste Benegrew Walie
Published: November 2022

This research investigates the discourse and practice of Agency Theory (AT) in the selected public-sectors of Ethiopia. The Agency Theory is assumed to bring about efficiency and accountability of the public-sector by adopting a contract and Pay-for-Performance (PFP) scheme; however, performance and citizens-cum-customers satiety was not improved as envisioned. Thus, to investigate this problem, the researcher has employed the mixed methods approach and, hence the cross-sectional design, where data has been collected at a point in time from selected public-sector employees to respond to the research problem and questions. To gather data, measurement scales like Binary and Likert Scales and research instruments like Self-Completion Questionnaires (SCQ), Semi-Structured Interviews (SSI), and Secondary Sources (SS) have been carried out at different tiers of government. The results indicated that the complex contexts like “Diverse Objectives, Public Values, and Diffuse Power” in the selected public-sectors required the co-existence of different initiatives and approaches based on what works and what does not work standard. Therefore, this study recommended adopting the home-grown reform system: The needed competencies that include the Traditional Public Administration (TPA), New Public Management (NPM), or Public Service Motivation (PSM) in the selected public-sectors based on the fitting contexts could increase the likelihood of performance enhancement.
Features of the development of the reaction rate of football players of different age groups
Authors: Tamoznikova I. S.
Published: November 2022

In modern football, the trend of intensification of gaming activity is gaining momentum, not only the speed of execution of individual techniques is accelerating, tactical schemes and features of player placement are undergoing significant changes, which presuppose multiple implementation of attacking actions in game moments. The evolution of gaming activity has significantly increased the requirements for the qualification of gamers.

Purpose – to develop a set of physical exercises aimed at developing the speed of motor reaction and analyze its effectiveness in football players of different age groups.

Methods and organization The study was conducted in three stages: assessment of the speed abilities of athletes before the experiment, conducting experimental work with an experimental group, namely, the introduction of the author's training methodology and a control study of speed-strength abilities to assess the effectiveness of the program.
Methodology for assessing the ability to extrapolate in the motor activity of athletes
Authors: Farafontov M. G.
Published: November 2022

Relevance. In team sports, acrobatics, martial arts, the effectiveness of competitive activity is determined by various factors, the consideration of which makes it possible to achieve success. A significant factor is the space-time orientation of athletes.

The purpose of the study Development of a technique for assessing the athlete's reaction to a moving object, which allows assessing the state of sensorimotor activity, the development of fatigue and the degree of accuracy of motor actions.

Research methods and organization: To assess the state of the nervous system of an athlete, a computer program has been developed to study a person's reaction to a change in the angular dimensions of a figure on a monitor screen in comparison with a standard (template) with registration of the number of advanced and delayed reactions. The program was tested on students of the Institute of Physical Culture.
Physical culture and sport as the basis of a healthy lifestyle – social aspects
Authors: Vasina I. I.
Published: November 2022

Relevance. The tasks of preserving the health of people are a priority all over the world. In recent years, due to political, socio-economic problems, pandemics in society, the level of psychological stress has been growing. Physical culture and sports, being key components of a healthy lifestyle (HLS), are considered as one of the most effective ways to reduce emotional fatigue, depression and feelings of fear. For a better implementation of the tasks of a healthy lifestyle, state support is needed in its popularization, the development of the social sphere, infrastructure, as well as the personal initiative of each person.
Information technologies relevant for graduates of sports universities
Authors: Polozov A. A.
Published: November 2022

Relevance. The rapid development of information technologies puts the educational institution in a difficult position. There are no industry standards for IT, educational programs on IT in sports are being formed. It is not possible to study the entire IT sphere. In this situation, it is recommended to study what cannot be done without in the field of FKiS.

Methods and organization of the study. Formation of a list of programs that are most often mentioned in search queries together with the concepts of the FKiS sphere.
Résilience et management de la sécurité: pistes pour l’innovation en sécurité industrielle
Authors: Rigaud Éric
Published: November 2022

La notion de résilience est utilisée dans différents contextes scientifiques, recouvrant différentes perspectives comme la faculté à faire face et à surmonter une situation, à rester en dessous de seuils dont le franchissement provoquerait des changements structurels irréversibles au sein des systèmes, à adopter des comportements originaux au regard de situations exceptionnelles. Depuis quelques années, cette notion sert de support au développement de réflexions théoriques et méthodologiques dans le domaine du management de la sécurité. Ce document propose une synthèse bibliographique et étymologique des modes d’utilisation de la résilience au sein de différentes disciplines et de différents points de vue relatifs à son utilisation dans le cadre du management de la sécurité.
The Effect of Rapid Automatic Naming on Reading Readiness for Children with Reading Difficulties in Elementary School
Authors: Nadiyah Salma , Tukimin Sunardi , Susetyo Budi , Tarsidi Iding , Novianti Ranti , Hutasuhut Fadly Halim , Widia Atma
Published: November 2022

In addition to phonological deficit, children who have difficulty in reading can also have RAN (rapid automatic naming) deficit or both. RAN is a strong predictor of the cause of reading difficulties and is a characteristic of reading disability or dyslexia. This study aims to know the impact of the rapid automatic naming intervention on dyslexic students in elementary schools. The research uses a quantitative approach to the Single Subject Research (SSR) method of A-B-A design. We tested the effect of teaching rapid automatic naming on the ability to quickly name objects, color digits, and letters in 4 subjects who had almost the same reading difficulties at the same grade level. The results showed that the teaching of rapid automatic naming affected increasing children's speed in naming objects, colors, digits, and letters. The significant effect of the rapid automatic naming teaching intervention shows that understanding the principles of rapid automatic naming is beneficial for students with dyslexia. The four experimental subjects showed an increase in the speed of naming objects, colors, digits, and letters after the intervention.
The Use of Digital Technology among Basic Certificate Lecturers in Community Colleges
Authors: Zaki Suhaina Mohamed , Salim Sharifah Masitah Syed , Salbi Jamaliah binti
Published: November 2022

In the digital era of the latest revolution, the field of education has undergone a transformation towards andragogy and pedagogy digitally. In Malaysia, the spread of the COVID-19 epidemic brought about a new norm change in the national education system. At the level of the Department of Polytechnic Education & amp; Community Colleges (JPPKK), Digital Learning Coordinating Committee of the Department of Polytechnic Education and Community Colleges was established with the role of identifying strategies to address challenges and issues related to digital learning and further strengthen ICT infrastructure and digital learning in Polytechnics and Community Colleges. This includes online teaching and learning (PdPDT) for students with special needs. Several major challenges have been made the basis of this study, namely the knowledge of lecturers on computer technology, the acceptance of lecturers on PdPDT for students with special needs and the use of teaching aids in PdPDT. Therefore, this study was conducted to identify the level of use of digital technology among Basic Certificate lecturers in Community Colleges. The study involved 24 lecturers in 12 Community Colleges offering 8 Basic Certificate programs. This Basic Certificate involves students with special needs Learning Disabilities. This study uses a quantitative method by using a questionnaire approach in collecting data to achieve the objectives of the study by using Statistical Packages For Social Sciences for windows version 20.0 (SPSS). The findings of the study show that all Basic Certificate lecturers have a level of knowledge of computer technology. While the level of acceptance of Basic Certificate lecturers on the level of computer use in the teaching and learning process is also in a high level with a mean score of 4.10 and the level of computer use among Basic Certificate lecturers in the PdP process is also very high with a mean score of 4.43. Overall, the findings show that the use of digital technology among Basic Certificate lecturers in Community Colleges is very good.
Involving Children with Special Needs in Managing a Digital-based Waste Bank
Authors: Ardianingsih Febrita , Wijiastuti Asri , Masitoh Siti
Published: November 2022

The Covid-19 pandemic has increased plastic waste. Those may cause microplastics and nanoplastics contaminants in soil, water, and air that have the potential to interfere with environmental health and human health. Waste management from the source is important in solving the problem of plastic waste, one of which is through a waste bank. Can children with special needs be involved in managing a digital-based waste bank? This study aims to determine: (1) the skills of children with intellectual disabilities in sorting waste, and (2) the skills of children with hearing impairments to record waste transactions digitally. This research is a one-group posttest only design. The sample was carried out purposively, totaling 10 children with intellectual disabilities and 14 children with hearing impairment in special high schools. Data were collected through tests after training. Data analysis used descriptive statistics. The research findings show that: (1) children with intellectual disabilities have very good skills to sort waste with an average score of 84.40, and (2) children with hearing impairment have good skills to record waste transactions digitally with an average score of 80.36. It indicates that children with intellectual disability and hearing impairment have the potential to be involved in digital-based waste management. This involvement may develop an awareness of children with special needs in environmental health.