bluuebunny/crossref_metadata_2025 huggingface dataset:
Intelligent PSO-Fuzzy MPPT approach for Stand Alone PV System under Real Outdoor Weather Conditions
Authors:   Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, Algeria, Zaghba Layachi , Khennane Messaouda ,   Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, Algeria, Borni Abdelhalim ,   Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, Algeria, Fezzani Amor ,   Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, Algeria
Published: August 2021

This paper presents a performance analysis of Solar PV System under Real Outdoor Weather Conditions based on PSO fuzzy optimization approach. The PV system consists of a PV array of 6 kWp, DC-DC boost converter, PSO fuzzy MPPT control and resistive Load. In this paper, an efficient maximum power point tracking method based on combining the strengths of fuzzy maximum approach and Particle Swarm Optimization to optimize fuzzy gain. The photovoltaic PV system has been simulated using MATLAB/SIMULINK to validate the effectiveness of the proposed MPPT. It can be concluded that the proposed method can quickly convergence to the MPP, higher efficiency and low oscillation during different situations of climatic conditions.
Numerical Simulation of a Textured and Untextured Photovoltaic Solar Cell: Comparative study
Authors:   Materials Development and Characterization Laboratory, Department of Electronics, Djillali Liabes University, BP89, Sidi Bel Abbés 22000, Algeria, Salim Karim , Amroun M.N ,   Materials Development and Characterization Laboratory, Department of Electronics, Djillali Liabes University, BP89, Sidi Bel Abbés 22000, Algeria, Sahraoui K ,   Materials Development and Characterization Laboratory, Department of Electronics, Djillali Liabes University, BP89, Sidi Bel Abbés 22000, Algeria, Azzoui W ,   Materials Development and Characterization Laboratory, Department of Electronics, Djillali Liabes University, BP89, Sidi Bel Abbés 22000, Algeria
Published: August 2021

Increasing the efficiency of solar cells relies on the surface of the solar cell. In this work, we simulated a textured silicon solar cell. This simulation allowed us to predict the values of the surface parameters such as the angle and depth between the pyramids for an optimal photovoltaic conversion where we found the Icc: 1.783 (A) and Vco: 0.551 (V) with a cell efficiency of about 13.56%. On the other hand, we performed another simulation of a non-textured solar cell to compare our values and found Icc: 1.623 (A) and Vco: 0.556 (V) with an efficiency of about 12.76%.
Fuzzy logic MPPT control algorithm for a Proton Exchange Membrane Fuel Cells System
Authors:   Automatic laboratory of Setif, Electrical E engineering D epartment, University Ferhat Abbas of Setif 1 , City of Maabouda, Algeria, KANOUNI Badreddine , BADOUD Abd Essalam ,   Automatic laboratory of Setif, Electrical E engineering D epartment, University Ferhat Abbas of Setif 1 , City of Maabouda, Algeria, MEKHILEF Saad ,   School of Software and Electrical Engineering, Swinburne, Victoria, Australia
Published: August 2021

Fuel cells output power depends on the operating conditions, including cell temperature, oxygen pressure, hydrogen pressure, tempureter . In each particular condition, there is only one unique operating point for a fuel cell system with the maximum output. Thus, a maximum power point tracking (MPPT) controller is needed to increase the efficiency of the PEMFC systems. In this paper an efficient method fuzzy logic controller is proposed for MPPT of the proton exchange membrane (PEM) fuel cells, boost converter. FLC adjusts the operating point of the PEM fuel cell to the maximum power by tuning of the boost converter duty cycle. To demonstrate the performance of the proposed algorithm, simulation results are sumulated in two cases, in normel condution and variation in temperature .the FLC algorithm with fast convergence, high accuracy and very low power fluctuations tracks the maximum power point of the fuel cell system
Impact of Optimal Integration of Dispersed Generation in an Electrical Distribution Network
Authors:   Laboratoire Semi-conducteurs et matériaux fonctionnels (LSCMF). Université Amar Telidji de Laghouat. Algérie (UATL). BP 37G Laghouat 03000, Algeria, Terbah Hocine , Chettih Saliha ,   Laboratoire Semi-conducteurs et matériaux fonctionnels (LSCMF). Université Amar Telidji de Laghouat. Algérie (UATL). BP 37G Laghouat 03000, Algeria
Published: August 2021

The impact of renewable energy dispersed generation (DG) in the electrical network in a way that increases the level of power also to ensure the continuity of service under better conditions Require many Big challenges, This paper provides a methodology solutions of hybrid photovoltaïque arry (PV) and wind turbine (WT) energy integration in the distribution electrical network with climate data from the wilaya of laghouat (Affiliated to Algeria) with maximal power level 500 kw and maximum power point tracking (MPPT) Incremental Conductance method follow-up to the maximum power point generated by the hybrid pv and wt system to ensure energy demand and improve the quality of electrical networks
Optimal Power Flow Solutions Incorporating Stochastic Solar Power withthe Application Grey Wolf Optimize
Authors:   Electrical Engineering Department, LMSF Laboratory, Amar Telidji University of Laghouat, Laghouat 03000, Algeria, Taleb Nadir , Bentouati Bachir ,   Electrical Engineering Department, LMSF Laboratory, Amar Telidji University of Laghouat, Laghouat 03000, Algeria, Chettih Saliha ,   Electrical Engineering Department, LMSF Laboratory, Amar Telidji University of Laghouat, Laghouat 03000, Algeria
Published: August 2021

The present paper aims to validate an electrical network study in consisting of conventional fossil fuel generators with the integration of intermittent generation technologies based on renewable energy resources like wind power or solar photovoltaic (PV) are the stochastic power output. By using an optimal power flow (OPF) problem different frameworks are developed for solving that represent various operating requirements, such as minimization of production fuel cost, and preserving generation emission at the lowest levels... etc. The OPF analysis aims to find the optimal solution and is very important for power system operation with satisfying operational constraints, planning and energy management. However, the intermittent combination of solar exacerbates the complexity of the problem. Within the framework of these criteria, this paper is an overview of the application Grey Wolf Optimizer (GWO) algorithm which solves the OPF problem with renewable energy. The algorithm thus combined and constructed gives optimum results satisfying all network constraints. Give an explanation for findings are based thus need to be with the optimum to effectuate of network constraints.
Experimental Analysis of a Photovoltaic Power Plant in a Desert Environment– Adrar area –
Authors:   Department of Material Sciences, Faculty of Science and Technology, Laboratory of Energy, Environment and Systems of Information (LEESI), University of Ahmed Draia, Adrar, Algeria., Benabdelkrim Bouchra , Benatillah Ali ,   Department of Material Sciences, Faculty of Science and Technology, Laboratory of Energy, Environment and Systems of Information (LEESI), University of Ahmed Draia, Adrar, Algeria., Ghaitaoui Touhami ,   Departement of Sciences and Technology, Laboratory (LDDI), Ahmed Draia University,Adrar, Algéria, Hammaoui Kelthoum ,   Departement of Sciences and Technology, Laboratory (LDDI), Ahmed Draia University,Adrar, Algéria
Published: August 2021

Algeria has one of the highest solar deposits in the world, the average duration of sunshine in the Algerian Sahara is 3500 hours, and this potential can be an important factor for sustainable development in this region, if it is exploited economical way. In this context, it should be noted that the city of Adrar is located in the region of the "solar belt", which enjoys abundant sunshine of more than 3000 hours of sunshine per year, based on data from Overall hourly irradiation on a horizontal surface, the Adrar region is distinguished by a higher average daily irradiation of up to 5.7 kWh/m2/day. In the present work, an operational performance analysis of a polycrystalline silicon photovoltaic system for one year is performed. The installed capacity of this system is 20 MW, and it is exposed in an arid climate in Adrar of southern Algeria.
Effects of Structured lifestyle Modification on Cardiovascular Risk Factors in Type-2 Diabetes Mellitus: A Randomized Controlled Trial
Authors: Lamu NM , Pitmang SL , Meshak DJ , Ishaya NT , Anejo-Okopi J , Madaki JKA
Published: August 2021

Several clinical trials have shown that lifestyle modifications lower blood pressure, affect weight as well as lipid profile and lower risk factors for cardiovascular diseases. The study assessed the effect of structured lifestyle modification on cardiovascular risk factors amongst type 2 diabetic patients that attend the General Outpatient Clinic (GOPC) of Jos University Teaching Hospital (JUTH). The study was a randomized controlled trial on 352 participants at the GOPC of JUTH, from October 2015 to February 2016. The intervention offered was counselling on structured lifestyle modification in diet and exercise for a period of 12 weeks. The primary outcome measures were changes in blood pressure, weight and lipid profile. The data were analyzed using Epi Info version 3.5.3. There were significant differences between groups in favor of the intervention group; mean systolic blood pressure of -65 mmHg (t = 5.344; p = 0.017) and mean weight of -1.78kg (t = 2.452; p = 0.015). Structured lifestyle modification caused significant improvement on modifiable cardiovascular risk factors in patients with type 2 diabetes mellitus attending the general outpatient clinic of the Jos University Teaching Hospital.
Determination of the Potential Biodiesel Volume of Soybean used as the First-Generation Biodiesel Feedstock in the United States
Authors: KARABAŞ Hülya
Published: August 2021

In the United States (U.S), biodiesel is produced from vegetable oils, animal fats, recycled restaurant oil, and waste oil. Soybean oil has been by far the most widely used feedstock for U.S biodiesel production, accounting for more than half of the nation's biodiesel feedstock. This study aimed to determine the potential biodiesel volume of the soybean plant, which is the most cultivated product as a first-generation biodiesel feedstock in the U.S. The potential biodiesel volume of the soybean plant, which was grown on an area of 30 352 150 hectares in the U.S in 2019, was calculated as 1 020 749 343 liters. Knowing the potential of oilseed plants used as feedstocks in first-generation biodiesel production will accelerate efforts to identify products that should be used in second-generation biodiesel production and expand their cultivation. Studies should be planned to remove the threat on the food sector by replacing the first-generation biodiesel production feedstocks, which are mainly used as oil feedstocks in the food sector, with the second-generation inedible oil feedstocks that are not used in the food sector.
Evaluation of Pelvic Floor Dysfunction for Patient with History of Total Vaginal Hysterectomy at Dr Sardjito General Hospital Yogyakarta
Authors:   Department of Obstetrics and Gynaecology, Dr. Sardjito Hospital-Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia, Gunawan Mochammad Andi
Published: August 2021

Introduction: Uterine prolapse is the herniation of the uterus into or beyond the vagina as a result of failure of the ligamentous and fascial supports. It often coexist with prolapse of the vaginal walls, involving the bladder or rectum. A surgical treatment for uterine prolapse is hysterectomy. Changes in pelvic anatomic structure due to hysterectomy can result in impaired pelvic function because of nerve or pelvic muscle structure damage during surgery. Objective: This study aims to evaluate the presence of pelvic floor dysfunction in uterine prolapse patients who have undergone Total Vaginal Hysterectomy (TVH) surgery at Dr Sardjito General Hospital, from November 2018 to September 2019. Evaluations were carried out using Pelvic Floor Distress Inventory (PFDI) questionnaire. Methods: This study is an analytical descriptive research, using secondary data taken from patient’s medical records at Dr. Sardjito General Hospital Yogyakarta. It uses The Pelvic Floor Distress Inventory (PFDI) questionnaire, which consisted of 3 assessment groups, those are Pelvic Organ Prolapse Distress Inventory 6 (POPDI-6), Colorectal-Anal Distress Inventory 8m(CRADI 8), and Urinary Distress Inventory 6 (UDI- 6). The inclusion criteria of this study were patients with diagnoses of uterine prolapse, cystocele and rectocele, who could be contacted and gave consent to conduct telephone interview. Results: There were 14 patients that met the inclusion criteria, they are uterine prolapse, cystocele and rectocele patients with a history of TVH procedure, were assessed using PFDI questionnaire. All patients did not have any pelvic floor dysfunction either from the POPDI-6, CRADI-8 or UDI-6 assessment groups. The weakness of this evaluation is that the PFDI postoperative value cannot be compared with before surgery, so it cannot be proven that the absence of pelvic floor dysfunction in the patient concerned is a positive result of the surgery performed, or not give significant changes. Conclusion: There is no pelvic floor dysfunction in patients with a history of TVH procedure on the indication of uterine prolapse, which was performed at Dr Sardjito General Hospital Yogyakarta.
Development of Sharia Micro Insurance Model at Islamic Baording School Sunan Drajat
Authors:   Sunan Drajat Institute, Sunan Drajat Institute, Djuanda University, Biyati Ahwarumi Musbikhin
Published: August 2021

Islamic Boarding School Sunan Drajat is a boarding school with a population of students reaching 12000 plus 20 business units spread across various sectors so that the existence of micro insurance is needed as a form of social security for students and others. This study aims to make a proposed model for the development of sharia insurance that can be developed at the Islamic boarding school in accordance with existing needs. The research method used in this study is a qualitative approach with ANP analysis techniques, the use of ANP analysis techniques aims to determine the extent to which the response from Sunan Drajat stakeholders is in accordance with what is needed. The results show that the micro insurance model that can be applied at the Islamic Boarding School Sunan Drajat is a micro insurance model that is oriented towards the welfare of students, especially in the form of health insurance with an easy, safe and profitable service system so that it can provide guarantees to students.
Environmental Awareness and Perception on Environmental Management of Entrepreneurs in Batik Industry in Kelantan, Malaysia
Authors: Yaacob Mohd Rafi , Mat Zain Nur Faizah
Published: August 2021

Small businesses form a backbone of economy in developed countries as well as indeveloping countries. However, at the same time, small businesses significantlycontributed to environmental degradations because they are preoccupied with matterspertaining to business as well their limitation in resources to look after the environment.In Malaysia, batik industry is one of handicraft products that contributed significant tothe country economy, but the industry has poor environmental record. Yet untilrecently, not many researchers in Malaysia conducted in research pertaining toenvironmental awareness and perception of SMEs entrepreneurs on environmentalissues exacerbated by their businesses. This paper examines entrepreneurs awarenessand perceptions of environmental issues. This study utilized in-depth interviews withthree entrepreneurs in the industry in Kelantan. The results of the study found that notall batik entrepreneurs knowledgeable about batik industry effects on the naturalenvironment. However, all of them had a positive perception about green business andthey agreed that environmental regulations are very important to batik firms. They alsoagreed that the government needs to monitor and tighten up the existing environmentallaws for greener environment in the industry.
Effects of the Ratio of Dietary Fish Meal to Soybean Meal on the Performance of Broiler Chicks
Authors: Htin Nwe Nwe , Chit May Phyo
Published: August 2021

A completely randomized design (CRD) was used with a total of 160 day-old commercial broiler chicks which were randomly assigned to four treatment groups with five replicates into 20 pens and brooded. Feed and water were provided ad libitum. From day old chick to 21 day, the broiler chicks were fed Diet 1 (5% fish meal and 25% soybean meal, 1: 5), Diet 2 (3% fish meal and 30% soybean meal, 1: 10) was served as control diet, Diet 3 (2% fish meal and 30% soybean meal, 1: 15) and Diet 4 (1.5% fish meal and 30% soybean meal, 1: 20). From day 22 onwards, the broiler chicks were fed finisher diet, Diet 1 (5% fish meal and 25% soybean meal, 1: 5), Diet 2 (2.6% fish meal and 26% soybean meal, 1: 10, serve as control diet, Diet 3 (1.8% fish meal and 27% soybean meal, 1: 15) and Diet 4 (1.3% fish meal and 26% soybean meal, 1: 20). Weekly performances and mortality are measured. By feeding FS5 diet (5% fish meal and 25% soybean meal), the heavier body weight, increased feed consumption and feed conversion ratio of broiler chicks was observed when compared to that of other treatment groups. Conclusively, it is obvious that the ratio of dietary fish meal to soybean meal 1: 5 (FS5) improved body weight but the lower feed efficiency of this diet should be considered in economical point of view.
Human Activities and Conservation Awareness between Community Use Zone (CUZ) Areas of Kinabalu Park and Crocker Range Park, Sabah
Authors: Mojiol Andy R. , Tapuang Maureen J. , Wahab Razak
Published: August 2021

The Parks Enactment 1984 prohibits any human activities in the Park in order to conserve thenatural ecosystem but in reality there are some people living inside the Park and doing cultivation. Community Use Zone (CUZ) is a management option in an attempt to strike a balance between the conservation priorities of the Park and the livelihoods of the local communities who depend on the Park for survival. This study looks into the relationship between types of crops planted within the CUZ areas, evaluate the contribution for the local communities’ livelihood, and determine the perception and conservation awareness of local community activities. The data for this study was collected by using face-to-face interview technique. Closed and open-ended structured questions were used in the interview. Apart from that observation was useful to obtained information which cannot achieve from structured interviews. Percentage, mean and range were used to summarize the results. With the use of socioeconomic survey and economic valuation on sales products approach, it was possible to determine the objectives of this study. Major crops grown are permanent crops such as rubber trees, fruit trees, and cash crops such as vegetables, cocoa and coffee trees were identified as the type of crops that were cultivated for economic sources by farmers in Kg. Sayap, Kota Belud and Kg. Mongool Baru Ulu Senagang, Keningau/Tenom. Rubber trees contributed the highest source of income followed by fruit trees such as durian, langsat and rambutan, cocoa trees and vegetables. The study showed that the perception and conservation awareness of the local communities in both villages had high awareness level. They are aware of the issues that concerning forest conservation. The study had determined that the CUZ is a tool management for the local communities to survive their living which is recommended to be applied but further research on the local communities’ livelihood dependency on protected areas should be conducted for the sake of forest conservation.
Response Surface Methodology Optimization of Methylene Blue Removal by Activated Carbon Derived from Foxtail Palm Tree Empty Fruit Bunch
Authors: Daud Farah Amni , Ismail Norhisyam , Mohd Ghazi Rozidaini
Published: August 2021

The release of dyes in form of wastewater causes serious environmental problems such as retards photosynthesis, inhibit growth of aquatic biota by blocking out sunlight and utilizing dissolved oxygen. In this study, activated carbon derived from foxtail palm (Wodyetia bifurcata) empty fruit bunch (EFB) was used as an adsorbent to remove methylene blue in aqueous solution. The preparation process of activated carbon consisted of H2SO4 impregnation followed by carbonization at 300ºC for 24 hours. The optimization adsorption process was carried out using Response Surface Methodology (RSM) via Box-Behnken design. Three important operating variables namely dye concentration, contact time and adsorbent dosage were studied. The optimum conditions obtained were 100 ppm of methylene blue, 13 h of contact time and 2 g of activated carbon with the highest percentage of methylene blue removal of 99.9%. Based on the study, activated carbon derived from foxtail palm EFB showed good potential as an adsorbing agent.
A Review: Caring Practices of Songbird, Red-Whiskered Bulbul (Pycnonotus jocosus)
Authors: A.K. Zulhisyam , S.W. Lee , M.D. Nur Afikah
Published: August 2021

Pycnonotus jocosus is known as red-whiskered bulbul or known by local Malaysian as songbird or burung candik. Burung candik is one of the favourite pet birds’. Generally, it comes from Bangladesh, southern China, India, Nepal, north Peninsular Malaysia, Thailand and Vietnam (Animal Pest Alert: Red-whiskered Bulbul). Burung candik is favoured because of their ability in singing in east-coast region of Malaysia specifically. In this research, the caring practices are observed. All the result were recorded and documented through interview and experiment research. The caring practices concerned are housing and cage, bathing and grooming, singing feature and diet and feeding. The results showed that one cage equipped with one bird for comfort and to avoid fighting. The birds were needed to be bathed once in a week at least according to the bird’s willingness. General singing functions are to attract the mate and territorial defense. Feed given were insects, fruits and pellet.
Scientific Notes on Practical Guide to Assess Colony Strength for Stingless Bee Geniotrigona thoracica and Heterotrigona itama Colonies
Authors: T. K. Kumara , M.S.N Farisya , W.M. Wan Noor Aida , P. Marcela , Ahmad Abu Hassan
Published: August 2021

Colony strength of the Geniotrigona thoracica and Heterotrigona itama colonies were classifiedinto strong, moderate and weak colonies. This colony strength assessment were done based onbrood size, workers productivity and workers presence. With this practical guide, uniformity incolony strength can be established for G. thoracica and H. itama colonies and provide a quickreferences to the Meliponiculturist.
Preliminary Study on Birth Weight and Pre-weaning Growth Pattern in Crossed Boer Kids
Authors: M. Y. Syahirah , Mat Khairiyah , Rusli Nor Dini , Che Harun Hasnita
Published: August 2021

This study was aimed to measure influence of some factors that involved in growth performance of crossed Boer kids including parity of mother, sex and litter size of kids. The data gained on body weight at birth weight (BW), 1 (Wt. 1), 2 (Wt. 2), and 3 (Wt. 3) months of age of 20 crossed Boer kids were recorded. There were two kids from does with parity 1, three kids from does with parity 2, eleven kids from does with parity 3, and four kids from parity ?4. From all kids, eleven of them are male and nine female. Kids Six kids were born as single whereas eight kids were born as twin and six kids were born as triplet. Results showed that there was a no significant different (P>0.05) associated with parity of mother. For sex of kids, results show that highly significant differences (P<0.01) for body weight were identified at age one, two and three months. On the other hand, there was no significant difference (P>0.05) for body weight of kids due to single, twin or triplet kid born effect.
Distribution and Morphometrical Variations of Stingless Bees (Apidae: Meliponini) In Urban and Forest Areas of Penang Island, Malaysia
Authors: Ab Hamid Suhaila , Salleh Mohammad Sharifuddin , Thevan Kumara , Hashim Nur Aida
Published: August 2021

Stingless bees from four different places in Penang, northern peninsular Malaysia includingUniversiti Sains Malaysia campus(USM), Botanical Garden, Balik Pulau and Teluk Bahang weresampled randomly and identified. A total of six species of stingless bee were successfully recorded; Heterotrigona itama, Lepidotrigona terminata, Tetrigona apicalis, Tetragonula iridipennis, Tetragonula laeviceps, and Tetragonula pagdeni. Heterotrigona itama is the most abundance species in both urban and forest area. Their hive can be found in all study areas. The results showed that Balik Pulau (forest) had the most diverse stingless bee species (5 species) compared to other selected sites. Morphometrical studies comprising fifteen characters of H.itama were measured. There were significant difference for H. itama body length and appendages between samples collected from urban and forest areas. H.itama in forest areas have larger body size compared to those in the urban area. Overall, stingless bees in urban areas was less diverse compared to forest area
Determining the rank of a number in the residue number system
Authors: Babenko M. , Kucherov N. , Tchernykh A. , Kuchukov V. , Golimblevskaia E. , Kuchukova E. , Vashchenko I.
Published: August 2021

In this article, the formulation and proof of the theorem on the difference in the ranks of the numbers represented in the Residue Number System is carried out. A method is proposed that allows to reduce the amount of necessary calculations and increases the speed of calculating the rank of a number relative to the method for calculating the rank of a number based on the approximate method. To find the rank of a number in the method for calculating the rank of a number based on the approximate method, it is necessary to calculate n operations with numbers exceeding the modulus value; in the proposed method, it is necessary to calculate n·(n−1)/2 operations not exceeding the value of the module.
Modular discrete event systems control based on logic inference
Authors: Davydov A. , Larionov A. , Nagul N.
Published: August 2021

The paper illustrates an application of the recently developed method of dealing with controlled automata-based discrete event systems with the help of logical inference. The method based on the calculus of positively constructed formulas is extended on the case of systems built out of sets of modules. Specifications restricting system behavior are also supposed to be modular. Due to the special features of the calculus of positively constructed formulas, it may be applied at the upper level of a robot group control system. The case study of mobile robots pushing a block to a target area is considered.
Experience in measuring Wi-Fi to ZigBee interference using open-source hardware
Authors: Dobrilovic D. , Mazalica M. , Gecin G.
Published: August 2021

Considering the growing appliance of wireless technologies in the Internet of Things and Wireless Sensor Networks the question of their coexistence and interoperability becomes extremely important. Wi-Fi and ZigBee technologies already have a long-lasting presence in the market as well as deployment in many systems. Because of their numerous appliances, it is extremely important to measure the impact of one technology on another. This paper has presented the approach of using open-source hardware and software for measuring the interference effects of Wi-Fi to ZigBee. The testing platform is built on Arduino microcontroller boards. This paper describes the experiment, the experimental platform, methodology, and tools used for collecting and analyzing data, as well as the experience gained during the experiments, and its influence on future work. The results presented in this paper give a clear insight into how the IEEE 802.11 networks influence the throughput of IEEE 802.15.4 networks when operating in similar frequencies. According to presented test results, Wi-Fi at distances of about 12m can affect the ZigBee throughput when the central frequency difference is 7 MHz or lower.
End-user development of knowledge bases for semi-automated formation of task cards
Authors: Dorodnykh N.O. , Kotlov Y.V. , Nikolaychuk O.A. , Popov V.M. , Yurin A.Y.
Published: August 2021

The complexity of creating artificial intelligence applications remains high. One of the factors that cause such complexity is the high qualification requirements for developers in the field of programming. Development complexity can be reduced by using methods and tools based on a paradigm known as End-user development. One of the problems that requires the application of the methods of this paradigm is the development of intelligent systems for supporting the search and troubleshooting onboard aircraft. Some tasks connected with this problem are identified, including the task of dynamic formation of task cards for troubleshooting in terms of forming a list of operations. This paper presents a solution to this problem based on some principles of End-user development: model-driven development, visual programming, and wizard form-filling. In particular, an extension of the Prototyping expert systems based on transformations technology, which implements the End-user development, is proposed in the context of the problem to be solved for Sukhoi Superjet aircraft. The main contribution of the work is as follows: expanded the main technology method by supporting event trees formalism (as a popular expert method for formalizing scenarios for the development of problem situations and their localization); created a domain-specific tool (namely, Extended event tree editor) for building standard and extended event trees, including for diagnostic tasks; developed a module for supporting transformations of XML-like event tree representation format for the knowledge base prototyping system – Personal knowledge base designer. A description of the proposed extension and the means of its implementation, as well as an illustrative example, are provided.
Information and algorithmic support of a multi-level integrated system for the investment strategies formation
Authors: Gercekovich D.A. , Basharina O.Yu. , Shilnikova I.S. , Gorbachevskaya E.Yu. , Gorsky S.A.
Published: August 2021

The article summarizes the accumulated practical experience of the authors in the development of algorithms for the formation of investment strategies. For this purpose, the optimization of the studied parameters, information support of investment activities, verification, monitoring and adjustment in the testing mode and the subsequent practical application of the described tools are considered. The system is based on the main provisions of the Markowitz portfolio theory. The analytical block of the Information System Portfolio Investor includes Profitability-Risk model; empirical models of optimal complexity; hybrid predictive model systems; the principle of combining (integrating) both models and forecasts, as well as decision rules; optimization of the training sample length (modified Markowitz model); optimization of the frequency of monitoring and adjusting the composition of the investment portfolio. The principles of design and development of the information block of the system, its replenishment and functioning are described in detail. All the above listed components of the algorithmic content of the investment decision making system are described sequentially. The system modules have been successfully tested on a wide class of financial instruments: ordinary shares, preferred shares, government and corporate bonds, exchange commodities, stock, commodity, industry and bond indices, exchange-traded investment funds and real estate funds. The implemented Markowitz model with a dynamic database of historical data can significantly increase the efficiency of investment decisions, which is facilitated by taking into account the characteristics of both the markets under study and the corresponding financial instruments.
A logical method for the synthesis of periodic trajectory in a binary dynamical system
Authors: Oparin G.A. , Bogdanova V.G. , Pashinin A.A.
Published: August 2021

A logic method for structural-parametric synthesis of a binary dynamical system with a given periodic trajectory is proposed. This method provides a constructive solution for the considered problem. The attraction region of such a trajectory must coincide with a given subset of the state space. An additional constraint sets the acceptable time for reaching this trajectory from its attraction region. As admissible structures for dynamical models of the synthesis, we consider the following systems: linear systems, systems with the disjunctive and conjunctive right sides. All conditions of the problem are written in the form of a quantified Boolean formula with subsequent verification of its truth using a specialized solver, which gives values of the required parameters of the dynamical model. The software implementation of the proposed method in the form of a composite service is presented. All stages of the parametric synthesis of a Boolean network based on the proposed method are demonstrated in the example of a one-step linear system.
Investigation of observability property of controlled binary dynamical systems: a logical approach
Authors: Oparin G.A. , Bogdanova V.G. , Pashinin A.A.
Published: August 2021

The property of observability of controlled binary dynamical systems is investigated. A formal definition of the property is given in the language of applied logic of predicates with bounded quantifiers of existence and universality. A Boolean model of the property is built in the form of a quantified Boolean formula accordingly to the Boolean constraints method developed by the authors. This formula satisfies both the logical specification of the property and the equations of the binary system dynamics. Aspects of the proposed approach implementation for the study of the observability property are considered. The technology of checking the feasibility of the property using an applied microservice package is demonstrated in several examples.
Multiset-based assessment of vulnerability of energy infrastructures to destructive impacts
Authors: Sheremet I.
Published: August 2021

This paper is dedicated to the application of the multigrammatical framework to the assessment of vulnerability of energy infrastructures affected by impacts destroying (reducing capabilities of) their facilities (power plants, fuel producing plants, power transmission lines, fuel transporting pipes, as well as networking devices of both electricity and fuel subsystems of an energy infrastructures). A basic graph representation of energy infrastructures is considered, and technique of their multigrammatical representation is introduced. Criterial base for recognition of the energy infrastructures vulnerability, being a generalization of the similar criterial base developed regarding industrial infrastructures is proposed. Techniques of multigrammatical modelling reservation of energy infrastructures and their recovery after impacts is proposed. Directions of future research in this area are announced.
Modelling purposeful processes based on the geometric representation of their trajectories
Authors: Skopin I.
Published: August 2021

The possibilities of studying processes based on the geometric representation of their trajectories in a multidimensional space of factors and using projections of trajectories on planes suitable for analysis are discussed. A connection is established between such constructions and the spiral and snail of development. Based on the proposed projection, a development snail is defined as a special representation format of the purposeful process, expanding the possibilities of analysis of modelling results.
Dawn of artificial intelligence -Enable digital Pathology in Pakistan-A paradigm shift
Authors: Zehra Talat , Shaikh Asma , Shams Maheen
Published: August 2021

Pathology particularly histopathology is considered to be a busy and challenging field. It is considered as gold standard for the diagnosis and management of patient particularly in cases of tumor. It has been more than twenty years since the introduction of whole slide imaging (WSI) in the developed part of the world. Various whole slide image (WSI) devices and use of artificial intelligence (AI) based softwares have transformed the field of Pathology1.
Digital pathology is a novel technology and currently being implemented in most of the developed part of the world.2 Once the patient’s data becomes digital, it is easily stored, reproducible on a single click and quality remains same. This data can be used to make disease models, disease trends and predict the outcome of a particular disease through data mining which will open new horizons of precise medicine.
The use of WSI with computational pathology and data storage devices have revolutionized the working in histopathology. The world witnessed an exponential rise in its adoption particularly after Covid-19 pandemic1. However, in the developing world either it is not being implemented or its use is still sub-optimal.
By realizing the potential of digital and computational pathology along with the use of artificial intelligence software, we can bring a drastic change in the field of personalized medicine in the developing part of the world 3. Numerous validation studies have been published indicating that WSI is a reliable tool for routine diagnosis in surgical pathology 4
 
Continuous...
ANALISIS PENERIMAAN INFORMASI PENGGUNA WEBSITE DENGAN MENGGUNAKAN TECHNOLOGY ACCEPTANCE MODEL (STUDI KASUS : dpmd.inhilkab.go.id)
Authors: Prasetyo Dwi Yuli
Published: August 2021

Abstract

This study aims to predict the acceptance of information from DPMD website users by using the Technology Acceptance Model approach with the TAM construct, namely perceived usefulness, perceived ease of use and attitude toward using. This study is a quantitative study using a causal research design that aims to obtain causal evidence between research variables consisting of perceived ease of use, perceived usefulness and attitude toward using. The results showed that the people of Indragiri Downstream District rated the DPMD website as relatively easy and beneficial because the news displayed was very accurate, valid and of high quality. The attitude of the community using the DPMD Website is that users feel happy because it can provide many benefits and users enjoy using the website. The ease of use of the DPMD website and the benefits of using the website of the indragiri hilir district community and village empowerment service simultaneously have a significant effect on user attitudes in using the website. The ease of use of the website and the benefits in using the website of the indragiri hilir district community and village empowerment service partially have a significant effect on user attitudes in using the DPMD website. The variable that has a dominant influence on user attitudes in using the DPMD website is the ease of using the website.

 

Abstrak

Penelitian ini bertujuan untuk memprediksi penerimaan informasi pengguna website DPMD dengen menggunakan pendekatan model penerimaan teknologi (Technology Acceptance Model) dengan konstruk TAM yaitu kegunaan persepsian (perceived usefulness), kemudahan penggunaan persepsian (perceived ease of use) dan sikap pengguna teknologi (attitude toward using). Penelitian ini adalah penelitian kuantitatif dengan menggunakan rancangan penelitian kausal yang bertujuan untuk mendapatkan bukti sebab akibat antara variabel-variabel penelitian yang terdiri atas perceived ease of use, perceived usefulness dan attitude toward using. Hasil penelitian menunjukkan masyarakat kabupaten indragiri hilir menilai website DPMD relatif tidak sulit dan memberikan manfaat karena berita yang ditampikan sangat akurat, valid dan bermutu. Sikap dari masyarakat penggunaan Website DPMD yaitu pengguna merasa senang karena dapat memberikan banyak kemanfaatan dan pengguna menikmati menggunakan website. Kemudahan  penggunaan website DPMD dan kemanfaatan dalam penggunaan website Dinas Pemberdayaan Masyarakat dan Desa Kabupaten Indragiri Hilir secara simultan berpengaruh signifikan terhadap sikap pengguna dalam penggunaan website. Kemudahan penggunaan website dan kemanfaatan dalam penggunaan website Dinas Pemberdayaan Masyarakat dan Desa Kabupaten Indragiri Hilir secara parsial berpengaruh signifikan terhadap sikap pengguna dalam penggunaan website DPMD. Variabel yang berpengaruh dominan terhadap sikap pengguna dalam penggunaan website DPMD yaitu Kemudahan penggunaan website.
PERTUMBUHAN BIBIT KAKAO (Teobroma cacao L) DENGAN BERBAGAI PEMBERIAN DOSIS SERBUK GERGAJI PADA VARIETAS (BUNDO-F1) DI TANAH GAMBUT
Authors: RIONO YOYON
Published: August 2021

This study aims to determine the growth of cacao seeds (Teobroma cacao L) with various doses of sawdust on Vairietas (Bundo-F1) on peat lands. This research has been carried out in the experimental garden of the Faculty of Agriculture, Islamic University of Indragiri Tembilahan, Tembilahan Hulu Subdistrict, Indragiri Downstream District. When the study began from April to July 2019 this research was a field trial using a non-factorial randomized block design (RBD) consisting of 6 levels, namely M0 = peat only, M1 = 1: 1 (sawdust: peat), M2 = 2 : 1 (sawdust: peat), M3 = 3: 1 (sawdust: peat). Each treatment was repeated three times to obtain 18 experimental trial plots in the field. Data from this study were analyzed using Analysis of Variance (ANOVA). The results showed that the treatment of M2 = 2: 1 (sawdust: peat) could have a significant effect on plant height (cm), stem diameter (mm), number of leaves (strands),
OPTIMASI BIAYA PEMELIHARAAN
Authors: Hardiman Hardiman , Fauzi Manyuk , Suprayogi Imam
Published: August 2021

The performance of the irrigation system management in Riau Province has not shown an optimal irrigation management function and irrigation conditions and functions due to budget constraints that have an impact on the performance of one of the irrigation areas in this province, namely the Uwai irrigation area. The purpose of this research is to get the performance value of the irrigation network system in the Uwai irrigation area and get budget optimization in the Uwai irrigation area. The results showed that the greatest assessment of damage to physical conditions in the Uwai irrigation network was found in the carrier channel RU 4, RU 5, RU 6, RU 7 left, which was 40% of the total channels and buildings and the smallest functional condition assessment in the Uwai irrigation network. found on channel RU 4, RU 5, RU 6, RU 7 left, which is 75% so that this channel is only able to serve 85.5 Ha from 342 Ha, 71 Ha from 284 Ha, 59.5 Ha from 238 Ha, 36.75 Ha of 147 Ha to be served.

 

Abstrak

Kinerja Pengelolaan sistem irigasi Provinsi Riau belum menunjukkan fungsi manajemen irigasi dan kondisi serta fungsi irigasi yang optimal akibat adanya keterbatasan anggaran yang ada sehingga berdampak pada kinerja salah satu daerah irigasi di provinsi ini yaitu daerah irigasi Uwai. Tujuan dari penelitian ini adalah untuk mendapat nilai kinerja sistem jaringan irigasi pada daerah irigasi Uwai  dan mendapat optimalisasi anggaran pada daerah irigasi Uwai. Hasil penelitian menunjukkan Penilaian kerusakan kondisi fisik di jaringan irigasi Uwai paling besar terdapat pada saluran pembawa RU 4, RU 5, RU 6, RU 7 kiri, yaitu sebesar 40% dari keseluruhan saluran dan bangunan dan penilaian kondisi fungsional di jaringan irigasi Uwai yang paling kecil terdapat pada saluran RU 4, RU 5, RU 6, RU 7 kiri yaitu sebesar 75% sehingga pada saluran ini hanya mampu melayani 85.5 Ha dari 342 Ha, 71 Ha dari 284 Ha, 59,5 Ha dari 238 Ha, 36,75 Ha dari 147 Ha yang harus dilayani.
ANALISIS POLA ARUS AKIBAT PASANG SURUT DI PANTAI SELAT BARU, KABUPATEN BENGKALIS
Authors: Aristi Swary , Sutikno Sigit , Fauzi Manyuk
Published: August 2021

Abstract

Bengkalis Island is an archipelago located in Bengkalis Regency, Riau Province. Because it is directly facing the open ocean, causing abrasion to occur on the northern coast of Bengkalis Island. The purpose of this study was to determine the condition of the tidal current pattern in Selat Baru Beach, Bengkalis Regency using a numerical model (hydrodynamics) in the MIKE21 application. The results showed the current velocity of the new strait coast, Bengkalis Regency, Riau Province. Based on the results of the model, it is obtained that the highest tide current that occurs in the western season in 2020 ranges from 0.006 m / s to 0.09 m / s, while the lowest tide current that occurs in the western season ranges from 0.006 to 0.084 m / s.

 

Abstrak

Pulau Bengkalis merupakan salah satu wilayah kepulauan yang terdapat di Kabupaten Bengkalis Propinsi Riau. Karena berhadapan langsung dengan lautan yang terbuka, menyebabkan abrasi terjadi di Pantai bagian utara di Pulau Bengkalis. Tujuan dari penelitian ini adalah untuk mengetahui kondisi pola arus akibat pasang surut di Pantai Selat Baru, Kabupaten Bengkalis dengan menggunakan model numerik (hidrodinamika) pada aplikasi MIKE21. Hasil penelitian menunjukkan kecepatan arus pantai selat baru, Kabupaten Bengkalis, Propinsi Riau. Berdasarkan hasil model yang diperoleh bahwa kecepatan arus saat pasang tertinggi yang terjadi pada musim barat pada tahun 2020 berkisar 0.006 m/s sampai 0.09 m/s, sedangkan kecepatan arus saat surut terendah yang terjadi pada musim barat berkisar 0.006 sampai 0.084 m/s
STUDI PEMANFAATAN SUMBER DAYA ALAM KABUPATEN INHIL DALAM PEMBUATAN MIE SAGU FORTIFIKASI IKAN GABUS DAN TELUR
Authors: Novitasari Rifni
Published: August 2021

Telah dilakukan penelitian tentang “Studi Pemanfaatan Sumber Daya Alam Kabupaten INHIL dalam Pembuatan Mie Sagu Fortifikasi Ikan Gabus dan Telur pada tanggal dari tanggal 28 September sampai dengan 2 Oktober 2020.  Adapun penelitian dilakukan dengan 3 Perlakuan yakni A = Tepung sagu : Bubur daging Ikan Gabus = 300 gr : 200 gr, B = Tepung sagu : Bubur daging Ikan Gabus = 325 gr : 175 gr, dan C = Tepung sagu : Bubur daging Ikan Gabus = 350 gr : 150 gr kemudian dari masing - masing perlakuan dilakukan analisa dengan menggunakan metode Uji Hedonik dengan melibatkan 20 orang panelis terlatih.  Dari hasil analisa diketahui bahwa perlakuan terbaik adalah perlakuan  A berdasarkan  penampilan awal dengan skor terhadap warna 7,85, skor terhadap tekstur 8,05, skor terhadap rasa 6,50 dan skor aroma 7.