bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Kelayakan Lokasi Promosi Dalam Penerimaan Mahasiswa Baru (PMB) Dengan Algoritma Naïve Bayes & Decission Tree C4.5
Authors: Wulandari Wulan
Published: December 2021

Competition for new student admissions in every public and private tertiary institution is currently growing rapidly every year, some spend a lot of money on promotional activities, to assist institutions / institutions in obtaining recommendations for the feasibility of promotion locations based on several measurement criteria using the classification algorithms contained in data mining . The algorithm used to compare the measurement of the feasibility of the promotion location of the city and district of Bekasi is Naïve Bayes and Decission Tree C4.5 using four parameters including the number of students in one sub-district, the number of students in one sub-district, the distance of location and last year's enthusiasts using 35 regions / sub-districts in Bekasi city and district.  measurement results using the rapidminner, the accuracy value of the Naïve Bayes algorithm is 91.43% and the Decission Tree C4.5 is 94.29%.
Kajian Kelayakan Finansial Fotovoltaik Terintegrasi On Grid Dengan Kapasitas 20 kWp
Authors: Qosim Muchamad Nur , Hariyati Rinna
Published: December 2021

ABSTRACT

 

Entering the 21st century, oil and gas supplies are running low. While the need for energy is increasing, especially in industrialized countries, it will increase to 70% between 2000 and 2030. In 2017, the electricity needs will reach 25.4 trillion kWh. Solar energy that can be generated for the entire Indonesian mainland which has an area of ​​± 2 million km2 with a radiation distribution of 4.8 kWh/m2/day is 5.10 mW, equivalent to 112,000 gWp. Investment costs include the costs of purchasing all required solar power plant components, such as the cost of purchasing solar modules and purchasing an inverter. Obtained the Internal Rate of Return (IRR) is more than the interest rate, which is 27.11% and it can be concluded that the planning of the on-grid solar power plant in the 20 KWP capacity system can be said to be feasible.

 

 

Keyword: Solar Cell, investment, electrical Energy

 

 

ABSTRAK

Memasuki abad 21, persediaan minyak dan gas bumi semakin menipis. Sementara kebutuhan akan energi semakin meningkat, utamanya di negara-negara industri akan meningkat sampai 70% antara tahun 2000 sampai dengan 2030. Pada tahun 2017, kebutuhan energi listrik mencapai 25,4 trilyun kWh. Energi surya yang dapat dibangkitkan untuk seluruh daratan Indonesia yang mempunyai luas ±2 juta km2 dengan distribusi penyinaran sebesar 4,8 kWh/m2/hari adalah sebesar 5,10 mW atau setara dengan 112.000 gWp. Biaya investasi mencakup mengenai biaya pembelian semua komponen pembangkit listrik tenaga surya yang dibutuhkan, seperti biaya pembelian modul surya dan pembelian inverter. Diperoleh Internal Rate of Return (IRR) lebih dari tingkat suku bunga, yaitu 27,11% dan dapat disimpulkan bahwa perencanaan PLTS on-grid di system kapasitas 20 KWP ini dapat dikatakan layak.

 

 

Kata kunci: Cel surya, investasi, Energi listrik
Desain dan Implementasi Pembangkit Listrik Tenaga Surya di Balai Benih Ikan, Kabupaten Samosir, Sumatera Utara
Authors: Setiawan Iwan Rohman
Published: December 2021

Pemerintah Kabupaten Samosir telah membangun Balai Benih Ikan (BBI) di Kecamatan Harian, untuk meningkatkan produksi perikanan sehingga diharapkan dapat meningkatkan pendapatan dan pertumbuhan ekonom masyarakat, BBI diharapkan dapat memasok kebutuhan benih ikan yang sedang dikembangkan di wilayah Kabupaten Samosir, baik di darat maupun di perairan Danau Toba, akan tetapi kegiatan di BBI terkendala akibat tenaga listrik dari jala-jala listrik PLN sering tidak stabil. Untuk menanggulangi permasalaan tersebut maka di BBI dibangun pembangkit listrik tenaga surya (PLTS), sistem PLTS  dibangun dengan metode off grid dan dengan utility priority, yaitu PLTS secara otomatis akan menyediakan tenaga listrik di BBI, ketika tenaga listrik dari jala-jala listrik PLN tidak tersedia. Energi listrik yang disediakan oleh PLTS sebesar 50 kWh, kebutuhan energi listrik tersebut dipenuhi dengan menggunakan panel surya sebanyak 40 panel dengan kapasitas masing-masing 250 WP, solar charge controller sebanyak 4 buah dengan daya keluaran maksimum msing-masing sebesar 3500 W, menggunakan baterai sebanyak 48 buah dengan kapasitas masing-masing 100 Ah dan menggunakan inverter dengan daya keluaran maksimum 6800 W.
Pengukuran dan Analisis High Frequency Current Transformer Pendeteksi Partial Discharge
Authors: Junaidi Andi
Published: December 2021

The lifetime of high voltage equipment is very dependent on the condition of insulation, poor insulation means the life span of high voltage equipment is getting shorter. Partial Discharge is one of the causes of deterioration of high voltage equipment insulation. The ability to know the phenomenon of partial discharge in equipment becomes very important and adds value to the maintenance of high voltage equipment. Many explanations regarding partial discharge, partial discharge is the lack of uniformity of the electric field in the isolation or dielectric media which will result in the phenomenon of Partial Discharge where this will lead to the failure of the isolation media. Partial Discharge that occurs continuously can cause damage (breakdown) on a high voltage equipment. Therefore, before a high voltage device is used, Partial Discharge detection is necessary. Partial Discharge Detection can use the Partial Discharge measurement circuit. In testing partial discharges can be tested using a sensor with various circuits including High Frequency Current Transformers (HFCT) so that this research will discuss one part of the Partial Discharge measurement circuit, the HFCT detector. Hopefully, the HFCT detector can be further developed and can be used for better partial discharge detection.
Pengaruh Intensitas Matahari Terhadap Karakteristik Sel Surya Jenis Polycristaline Menggunakan Regresi Linear
Authors: Makkulau Andi , Samsurizal Samsurizal , Fikri Miftahul , Christiono Christiono
Published: December 2021

Renewable energy sources have both renewable and sustainable properties and the utilization of renewable energy sources is a continuously developed alternative. One of the technologies that can utilize renewable energy is polycrystalline solar cells. Solar cells are technology that converts sunlight energy into electrical energy. This technology is very potentially applied in Indonesia that has a tropical climate, but the main problem of this system is the power instability generated. The power produced relies heavily on the intensity of the sun received by the solar panels. The intensity of the solar radiation received by the solar panels can be maximised by installing solar panels, with a precise tilt angle. In research acquired the relationship between irradiation and current correlates of R = 0.7251. From the correlation value above indicates that there is a strong link and is directly proportional between irradiation and the current obtained. The acquired Model needs to be seen its accuracy, in which case it will be used Mean Absolute Percent Error So it is obtained by 26.5%. This indicates that the model is good enough.
Pengolahan Sampah Hybrid PLTS Menjadi Energi Listrik Di Kelurahan Pondok Kopi
Authors: Hidayat Syarif Hidayat
Published: December 2021

Saat ini di indonesia khususnya di kota-kota besar, masalah sampah menjadi masalah lingkungan karena tidak ada penyelesaian masalah penampungan. Dalam hal ini diperlukan perencanaan mengenai pembangunan pembangkit listrik dengan metode listrik kerakyatan, dengan menggunakan bahan bakar sampah yang diproses menjadi gas yang diubah menjadi energi listrik, namun sampah juga bisa diolah menjadi briket sebagai bahan bakar energi terbarukan. Diharapkan juga dengan metode ini dapat sebagai solusi untuk bisa menuntaskan sampah-sampah yang ada khususnya di kota-kota besar. Pada metode ini akan diuraikan segi-segi teknis dan ekonomis dari pembangkit listrik tenaga sampah di kelurahan Pondok Kopi. Dalam skema biodigester sampah organik 100 kg/hari dapat menghasilkan potensi energi listrik 4,28 kwh/hari dan dapat menghemat pemakaian listrik PLN sebesar 82,28 % tiap tahunnya.
Pengembangan Sistem Pengaturan Suplai Beban (Ats) Pada Pembangkit Listrik Tenaga Hibrid Berbasiskan Mikrokontroler
Authors: Purwanto Sugeng
Published: December 2021

ABSTRACT

Renewable energy is potential alternative energy to replace the central role of fossil energy which has been going on since the early 20th century. The solar power plant is alternative energy, especially for households and industry, and can be designed as a hybrid power plant consisting of solar panels, batteries, an automatic transfer switch (ATS), and a grid. This research will focus on developing ATS based on a microcontroller. It functions to regulate the load supply automatically from the three sources of electrical energy, like solar panels, batteries, and grid while the microcontroller functions to monitor the transfer of power from the solar power plant to grid and voltage movements in the system so that current and voltage data can be recorded from time to time to improve system reliability, effectiveness, and efficiency of the tool. ATS components consist of MCB, magnetic contactor, timer H3CR, relay, 2000VA inverter, solar charge controller 100A, NodeMCU ESP8266 IoT, and battery 12V 100AH. This research is conducted in one year to produce ATS based on a microcontroller that can automatically regulate the supply of loads from the three sources of electrical energy with a good level of efficiency and stability.

 Keywords: solar power plants, hybrid power plants, an automatic transfer switch.

 ABSTRAK

Energi baru terbarukan merupakan energi alternatif yang potensial untuk menggantikan peran sentral dari energi fosil yang telah berlangsung sejak awal abad ke 20. PLTS merupakan salah satu energi alternatif penyedia energi listrik untuk rumah tangga dan industri serta dapat dirancang sebagai sistem pembangkit listrik tenaga hibrid (PLTH) yang terdiri dari panel surya, baterai, sistem pengaturan beban atau ATS (automatic transfer switch) dan jaringan PLN. Peneltian difokuskan pada pengembangan sistem ATS berbasiskan mikrokontroler. ATS berfungsi untuk mengatur suplai beban secara otomatis dari ketiga sumber energi listrik yaitu panel surya, baterai dan PLN sedangkan mikrokontroler berfungsi memonitor perpindahan daya dari PLTS ke sumber PLN dan pergerakan tegangan pada sistem sehingga dapat dilakukan pencatatan data arus dan tegangan dari waktu ke waktu sehingga dapat meningkatkan keandalan sistem, efektifitas dan efisiensi alat. Komponen ATS terdiri dari MCB, magnetic contactor, timer H3CR, relay, inverter 2000VA, solar charge controller 100A, NodeMCU ESP8266 IoT, dan baterai 12V 100Ah. Penelitian ini akan dilakukan dalam periode satu tahun menghasilkan ATS berbasiskan mikrokontroler yang dapat mengatur suplai beban secara otomatis dari ketiga sumber energi listrik dengan tingkat efisiensi dan kestabilan yang baik. Tim penelitian ini tediri dari 3 orang dan berasal dari program studi teknik elektro, IT PLN.

 Kata kunci: pembangkit listrik tenaga surya, pembangkit listrik tenaga hibrid, pengaturan suplai beban.
Rancang Bangun Sistem Kendali Level Air Berbasis Programmable Logic Controller dan Human Machine Interface
Authors: Putri Tri Wahyu Oktaviana , Mowaviq Muhammad Imbarothur , Hajar Ibnu
Published: December 2021

hingga industri. Salah satu penerapan perlunya mengendalikan level air adalah pada boiler suatu pembangkit. Berbagai pengendalian terhadap suatu besaran di industri tentu memerlukan perangkat pengendali. Programmable Logic Controller (PLC)  Rancang bangun sistem kendali level air dengan menggunakan PLC dan Human Machine Interface (HMI) ini menggunakan perangkat utama yaitu PLC FX3U yang dilengkapi dengan input analog, output analog, dan output PWM (Pulse Width Modulation). Level/ ketinggian air adalah objek yang akan dikendalikan. Suplai air diatur oleh pompa air DC yang terdiri atas pompa inlet dan pompa outlet. Sedangkan untuk sensor ketinggian air menggunakan sensor ultrasonic HC-SR04. Untuk memudahkan pengoperasian PLC, PLC dapat dikombinasikan dengan HMI yang mana terhubung di dalam jaringan dengan PLC. Untuk aplikasi jangka panjang, rancang bangun sistem kendali level air berbasis PLC FX3U dan HMI dapat difungsikan sebagai media pembelajaran di kelas pada mata kuliah yang berkaitan dengan elektronika industri, PLC, maupun mata kuliah lain. Berdasarkan pengujian dengan menggunakan kontroler PID di dalam PLC, diperoleh hasil bahwa ketinggian air dapat dikendalikan dengan eror rata-rata sebesar 3%. Nilai tersebut disebabkan karena perilaku dinamik air.
Kendali Alat Destilasi Air Laut Elektrik Berbasis Mikrokontroler
Authors: Mowaviq Muhammad Imbarothur
Published: December 2021

Air bersih merupakan kebutuhan yang sangat mendasar dalam kehidupan manusia. Salah satu cara mendapatkan air bersih layak konsumsi adalah dengan memisahkan air laut dari kandungan garam dengan metode destilasi. Destilasi adalah proses menghilangkan sejumlah tertentu garam dan mineral lain dari air untuk menghasilkan air tawar. Beberapa bagian utama pada alat destilasi ini adalah tabung pemanas untuk proses penguapan air, pipa kondensor untuk proses pengembunan dan tabung penampung. Alat ini, menggunakan pemanas elektrik untuk menguapkan air. Alat destilasi ini dikendalikan oleh mikrokontroler Arduino Mega 2560. Motor, pemanas elektrik, dan valve menjadi aktuator. Sementara, sensor yang digunakan adalah sensor suhu PT100 dan sensor level. Peningkatan suhu yang terjadi untuk sampai pada proses penguapan per satu liter air adalah 83 menit pada suhu 120 oC. Pada proses pengujian, alat destilasi dapat menghasilkan air garam dan menyisakan garam pada tabung pemanas.
Kriteria Desain Sistem Jaringan Distribusi Untuk Evaluasi Kondisi Eksisting Kelistrikan Suatu Wilayah
Authors: Widyastuti Christine , Senen Adri , Handayani Oktaria
Published: December 2021

Faktor yang menentukan kualitas energi listrik adalah adanya perencanaan sistem distribusi yang baik yang memenuhi standar dan kriteria teknis yang berlaku. Meskipun desain awal sistem distribusi telah memenuhi standar kualitas pelayanan tersebut, dengan adanya perkembangan beban yang terus meningkat, parameter kualitas yang terjadi di lapangan dapat mengalami perubahan, sehingga perlu adanya evaluasi kondisi kualitas pensuplaian tersebut. Evaluasi ini semakin penting dalam kaitannya dengan kebutuhan untuk perencanaan pengembangan sistem ke masa depanu untuk mencapai sistim distribusi dengan kualitas yang tinggi, andal dan effisien. Adapun kriterian desain yang dirancang dalam penelitian ini meliputi jatuh tegangan, dan penyulang serta keandalan sistem distribusi. Penetuan kriteria desain ini diharapkan dapat dijadikan sebagai bahan acuan oleh pengelola sistem distribusi dalam rangka mencapai tingkat kualitas pelayanan yang memenuhi standar yang berlaku dengan didasarkan pada kondisi sistem eksisting, prediksi perkembangan beban, dan pengembangan wilayah pada suatu area pelayanan. Hasil evaluasi menunjukkan persentase jatuh tegnagan berkisar antara 1 % - 12,7% , pembebanan penyulang berada pada nilai 50,5 % - 96,2 % , dengan nilai indeks keandalan SAIFI mecapai 3,86 kali/tahun dan nilai SAIDI 16,23 jam/tahun
Design Of Horizontal Type Of Wind Turbine On A Highrise Building
Authors: - Wahirom - , - Nofirman - , - Prayudi
Published: December 2021

In making a horizontal type wind turbine, of course, it is necessary to analyze it in depth, one of which is by predicting the production of wind energy produced by the wind turbine to estimate the wind power in the wind turbine which will later be applied. Wind energy sources that are commonly used are located in rural areas, fields and even there is such a large amount of energy that it is sometimes difficult to reach the power grid and other large areas including the roofs of high-rise buildings. There are many analytical models in wind energy estimation, one of which is often done by many researchers, namely by using the Weibull distribution method. From the measurement results that as many as 1516.37 kWh with a 1 kW wind turbine with a radius of 1 meter (capacity factor 30.09%). Modeling wind turbine blades with NACA 4412 using Qblade software to determine the torsional angle of the blade to be applied so that it is obtained that the torsion angle from the base and The tip of the blade has a tilt angle of 19.05? to 6.96° with a maximum Cp of 0.5 this is a pretty good value in designing wind turbine blades.
Implementasi Ant Colony Optimization (ACO) pada Sistem Irigasi Lahan Tadah Hujan
Authors: Haris Abdul , Juwita Trisma , Aziza Rosida Nur , Sikumbang Hengki , Siregar Riki Ruli A.
Published: December 2021

The purpose of this research is to produce an optimal water distribution system for irrigation of rainfed land. The problem with conventional irrigation systems is that the water distribution process cannot be controlled and monitored automatically and in real time. The impact on water distribution becomes ineffective. The implementation of Ant Colony Optimization (ACO) is used in research as a method to determine the location or node based on the pheromone pattern of the soil dryness level at the sprinkler nodes to be distributed by the water flow, taking into account the criteria level on the soil as a trend of probability values ??and determining the nodes according to the needs in the flow water. The results obtained from this study indicate that the data displayed is the level of dryness of each node, the volume of water in the reservoir, and the flow of water flowing. The ACO test shows the sequence of nodes that will be passed after the optimization process of water distribution in a rainfed irrigation system using the ACO method gets an error value calculated by the MAPE method of 43% so that it gets an accuracy value of 57%.
Klasifikasi Titik dan Jenis Gangguan Guna Efisiensi Prosedur Operasi Standar Perbaikan Jaringan Distribusi
Authors: Kuswardani Dwina
Published: December 2021

Saat ini jaringan distribusi listrik (Jaringan Distribusi Penyulang) UP3 Manokwari masih memiliki masalah dalam mengetahui lokasi gangguan dan mengelompokkan titik dan jenis gangguan. Adapun masalah lainnya adalah perekapan laporan gangguan yang masih bersifat konvensional yang mana laporan detail gangguan tersebut jarang direkap secara real time dan penyampaian informasi mengenai informasi gangguan kurang efektif kepada petugas dan pimpinan. Tujuan penelitian ini adalah diperoleh suatu pola atau node menggunakan algoritma C4.5 untuk mengklasifikasi titik dan jenis gangguan jaringan distribusi penyulang, serta untuk membantu petugas dalam proses perekapan detail secara real-time. Evaluasi pola menggunakan tools Rapidminer serta menggunakan Confusion Matrix untuk pengujian tingkat akurasi metode klasifikasi. Hasil penelitian menunjukkan bahwa klasifikasi titik gangguan ditentukan oleh faktor beban disrupsi dan relay dengan 3 (tiga) pola/node dan jenis gangguan ditentukan oleh faktor kerusakan dan penyebab gangguan dengan 16 pola/node. Hasil penelitian menunjukan bahwa tingkat akurasi model algoritma C4.5 sebesar 87.80% untuk klasifikasi jenis gangguan dan 96.15% untuk klasifikasi titik. Tingkat akurasi model algoritma C4.5 adalah 87,80. % untuk klasifikasi jenis disrupsi dan 96,15% untuk klasifikasi titik gangguan.
Границы советского традиционализма (из опыта русского народа в XX веке). Этнологическое исследование
Authors:   Институт этнологии и антропологии Российской академии наук, Кириченко Олег , Шляхтина Наталья , Листова Татьяна , Крюкова Светлана , Воронина Татьяна
Published: December 2021

Научное исследование советского традиционализма – тема достаточно новая, но перспективная, поскольку в ней затрагивается целый ряд вопросов, позволяющих приблизиться к пониманию причин возвращения сегодня в общественную жизнь советских реалий, от которых, казалось бы, страна отказалась в 1990-е годы. Авторы монографии обращаются к разным пластам этнической, правовой, религиозной, бытовой и социальной жизни русского народа, делают экскурсы в дореволюционную Россию, прослеживают идейные пути традиционализма, получившего советскую прививку, в постсоветское время. Книга рассчитана не только на специалистов, но и на широкий круг читателей The scientific study of Soviet traditionalism is a fairly new topic, but promising, since it touches on a number of issues that make it possible to get closer to understanding the reasons for the return of Soviet realities to public life today, which, it would seem, the country abandoned in the 1990s. The authors of the monograph turn to different layers of the ethnic, legal, religious, everyday and social life of the Russian people, make excursions into pre-revolutionary Russia, trace the ideological paths of traditionalism, which received a Soviet inoculation, in the post-Soviet period. The book is intended not only for specialists, but also for a wide range of readers.
A Six-Sigma DMAIC Approach to Improve the Sales Process of a Technology Start-Up
Authors: Wartati Desy , Garza-Reyes Jose Arturo , Dieste Marcos , Nadeem Simon Peter , Joshi Rohit , González-Aleu Fernando
Published: December 2021

Despite the adoption of Six-Sigma in different service sectors, its application in the Sales function of a Technology-based Start-up has not been explored. This paper deploys an action research-based study methodology and conducts a thorough analysis of a Technology Start-up company in Indonesia, using Six-Sigma principles and the Define-Measure-Analyse-Improve-Control (DMAIC) approach. Statistical validation of the causes of problems helped to formulate a strategy that may have otherwise not been possible. The results of the study and proposed solutions confirm the potential benefits of adopting Six-Sigma in the Sales function of technology start-ups to reduce, particularly, customer waiting time. The novelty of this research lies in the fact that it applies Six-Sigma in a transactional process such as sales, which earlier studies have not explored in depth. This paper can be employed as a reference for organisations to undertake and guide specific process improvement projects similar to the one presented.
The Adaptive Damping Technique: Improving the Simulation Accuracy of Hydraulic Transients
Authors: R. Jishnu Chandran , Salih A.
Published: December 2021

Hydraulic surges are transient events frequently observed in various industrial and laboratory flow situations. Understanding surge physics and its accurate numerical prediction is crucial to the safety of flow systems. The maximum accuracy achievable for transient surge simulations is limited by the inefficiencies in the mathematical models used. In this work, we propose a mathematical model that incorporates an adaptive damping technique for the accurate prediction of hydraulic surges. This model also takes the compressibility effects in the liquid during the surge process into account. The novel approach of using the local pressure fluctuation data from the flow to adjust the unsteady friction for controlling the dissipation is introduced in this paper. The adaptive-dissipation is actualized through a unique 'variable pressure wave damping coefficient' function definition. Numerical simulation of three different valve-induced surge experiments demonstrates the reliability and robustness of the mathematical model. Numerical results from the proposed model show an excellent match with the experimental data by closely reproducing both the frequency and the amplitude of transient pressure oscillations. A comparative study explains the improvement in the simulation accuracy achieved by replacing the constant damping coefficient with the proposed variable coefficient. The superiority of the new model with the adaptive damping capability over the similar models in literature and those used in commercial software packages is also well established through this study.
Power Usage Efficiency (PUE) Optimization with Counterpointing Machine Learning Techniques for Data Center Temperatures
Authors: Kumar Rajendra , Khatri Sunil Kumar , Diván Mario José
Published: December 2021

The rapid increase in the IT infrastructure has led to demands in more Data Center Space & Power to fulfil the Information and Communication Technology (ICT) services hosting requirements. Due to this, more electrical power is being consumed in Data Centers therefore Data Center power & cooling management has become quite an important and challenging task. Direct impacting aspects affecting the power energy of data centers are power and commensurate cooling losses. It is difficult to optimise the Power Usage Efficiency (PUE) of the Data Center using conventional methods which essentially need knowledge of each Data Center facility and specific equipment and its working. Hence, a novel optimization approach is necessary to optimise the power and cooling in the data center. This research work is performed by varying the temperature in the data center through a machine learning-based linear regression optimization technique. From the research, the ideal temperature is identified with high accuracy based on the prediction technique evolved out of the available data. With the proposed model, the PUE of the data center can be easily analysed and predicted based on temperature changes maintained in the Data Center. As the temperature is raised from 19.73 oC to 21.17 oC, then the cooling load is decreased in the range 607 KW to 414 KW. From the result, maintaining the temperature at the optimum value significantly improves the Data Center PUE and same time saves power within the permissible limits.
Optimal Policies of Social Infrastructures Maintenance using Shock and Damage Model
Authors: Yamane Akihiro , Ito Kodo , Higuchi Yoshiyuki
Published: December 2021

Social infrastructures such as roads and bridges are indispensable for our lives. They have to be maintained continuously and such maintenance has become a big issue in Japan. Social infrastructures are maintained under strict restrictions such as decreasing in local finance revenue and scarcity of skilful engineers. Various kinds of factors such as inspection periods, maintenance costs, and degradation levels, are necessary to consider in establishing efficient maintenance plans of social infrastructures. Furthermore, the special circumstances of social infrastructures such as the delay of constructions which is caused by the scarcity of budget, must be discussed for the efficient maintenance plan. For such discussion, the stochastic cost model which contains preventive and corrective maintenances is useful. Although these models have been studied in mechanical and electronic systems, unique characteristics of social infrastructures such as their enormous scale and delays due to maintenance budget restrictions must be considered when such social infrastructure models are discussed. In this paper, we establish maintenance models of infrastructures which some of preventive maintenance must be prolonged. The expected maintenance cost rate is established using the cumulative damage model and optimal policies which minimizes them are considered. Three basic models and their extended models which consider natural disasters are discussed.
Determinants of Assurance Management System for Critical Asset: A Literature Review
Authors: Tubil Joseph A. , Acosta Alexander S. , Acosta Imee C. , Malagapo Eduardo P.
Published: December 2021

Several studies found that critical asset failure results in delays and downtimes in operation for most industries. One of the studies revealed that 272 of the 773 occurrences involved a critical asset breakdown. Thus, this study aimed to discuss the relevant factors of implementing the Assurance Management System for the industry's selected critical asset. Literature reviews play a significant role in this research through a content analysis review process from different review articles, google scholar, journals, and other social sciences. The result revealed that increasing the organization's knowledge of the processes and asset criticality in the assurance management system offers a high degree of openness to the activities carried out to ensure continued asset reliability and integrity. Relatively, it shows a clear long-term progress pattern of improved equipment reliability, leading to a significant increase in consumer trust due to introducing a system of reliability assurance management. Indeed, the study recommended that implementing an assurance management system is an integral part of the critical asset as it offers trust that the asset will perform as anticipated. Finally, it is an aid in understanding the asset and its relationship between expected and actual performance and efficiency in using a structured approach of the Assurance Management System for Critical Asset, the AMSCAF Framework. Therefore, industry stakeholders should consider the recommendations and best practices to ensure critical asset management systems need to generate value that maintains a competitive advantage in today's highly complicated and challenging market competition through the Assurance Management System.
Forward Kinematics of Delta Manipulator by Novel Hybrid Neural Network
Authors: Makwana Mahesh A. , Patolia Haresh P.
Published: December 2021

For the parallel configuration of the robot manipulator, the solution of Forward Kinematics (FK) is tough as compared to Inverse Kinematics (IK). This work presents a novel hybrid method of optimizing an Artificial Neural Network (ANN) specifically Multilayer Perceptron (MLP) with Genetic Algorithm (GA) and Step-wise Linear Regression (SWLR) to solve the complex FK of Delta Parallel Manipulator (DPM). The joint space angular positional data has been iterated using IK to generate point cloud of Cartesian space positional data. This data set is highly random and broad which leads to higher-order nonlinearity. Hence, normalization of the dataset has been done to avoid outliers from the dataset and to achieve better performance. The developed ANN based MLP gave a mean square error of 0.0000762 and an overall R2 value of 0.99918. Finally, the proposed network has been simulated to solve FK of the parallel manipulator and to check its efficacy. For given joint angles, the proposed network predicted positional values which are in good approximation with known trajectory solved by standard analytical method.
PREVALÊNCIA E FATORES DE RISCO PARA A SIALOMETAPLASIA NECROSANTE: UMA REVISÃO SISTEMÁTICA.
Authors: Leão Carolina Fortes de Sampaio , Cirilo Ellen Cristina Costa , Da Silva Hugo Fontenele , De Mendonça Raissa Pinheiro
Published: December 2021

Introdução: A sialometaplasia necrosante (SN) é uma patologia rara, resultante de isquemia local do tecido da glândula salivar. Objetivo: Determinar a prevalência global da SN em humanos, e os fatores de risco desta patologia. Método: A estratégia de pesquisa foi de caráter descritivo, com o levantamento de dados eletrônicos nacionais e internacionais nas bases de dados Pubmed, Lilacs, Scopus, Web of Science e Google acadêmico. Foram encontrados 1839 artigos, finalizando em 37 artigos entre 2000-2020. Resultados: 46 casos: Palato 35 (74,4%), lábio inferior 5 (10,6%), glândula parótida 3 (6,5%), vestíbulo bucal 1 (2,1%), cavidade nasal 1 (2,1%), hipofaringe 1 (2,1%).13 por cirurgias anteriores; 6 sem queixas precedentes; 3 apontaram distúrbios alimentares; 3 reportaram uso de medicações spray, os demais apresentaram vários fatores envolvidos. Conclusão: A SN tem maior prevalência no sexo masculino de meia idade, acometendo mais o palato após cirurgias, sendo este considerado o principal fator de risco.
BRUXISMO INFANTIL: AVALIAÇÃO DO CONHECIMENTO DE ODONTOPEDIATRAS.
Authors: Paiva Shirley Mendes de , Silva Iris Rhayre Lima , Hanna Leila Maués Oliveira
Published: December 2021

Introdução: problemas de saúde como Bruxismo, podem interferir na qualidade de vida das crianças. Quando o diagnóstico é feito precocemente e o tratamento começa o mais rápido possível, o prognóstico é melhor. Objetivo: esta pesquisa teve como objetivo, fazer uma avaliação do grau de conhecimento dos odontopediatras no Estado do PARÁ, em relação ao bruxismo infantil. Método: para avaliar o conhecimento desses profissionais, foi aplicado um questionário contendo perguntas referente ao bruxismo infantil. Resultado: após aplicação do questionário foi possível identificar um percentual baixo de odontopediatras que responderam ao questionário, apenas 25% dos inscritos no CRO/PA. Dos 10 itens perguntados apenas 4 eram compatível com conhecimento adequado sobre o assunto. Conclusão: verificou-se que os odontopediatras necessitam atualizar seus conhecimentos no que se refere ao Bruxismo Infantil.
TRANSDIFERENCIAÇÃO CELULAR E SEU CICLO DE VIDA: TURRITOPSIS DOHRNII UMA REVISÃO DA LITERATURA
Authors: Karabolsak Vinicius Lodi Cordeiro , Oliveira Neidiane Justino de , Alves Andréa Regiani , Pelizon Ana Claudia
Published: December 2021

Introdução: Por volta do século XIX uma descoberta sobre biologia marinha prometia mudar a percepção de imortalidade: desde os primórdios o que se entendia sobre imortalidade sempre foi relacionado às mitologias e religiões que descreviam algo ou alguém que nunca envelhecia. Entretanto, em meados do século XIX, notou-se a existência da Turritopsis dorhnii na classe dos hidrozoários por ter a capacidade de reverter seu ciclo de vida adulta (medusa) de volta ao inicial (pólipo), suspendendo assim a classificação de morte biológica, logo, ganhando o apelido de água-viva imortal. Objetivo: A proposta desta revisão é ressaltar a importância do estudo da epigenética deste hidrozoário, com foco em sua capacidade de transdiferenciação e desenvolvimento reverso, ambos claramente observados neste organismo, buscando através disso contribuir para estudos que objetivam compreender novas técnicas anti-senescência em outros organismos. Método: Este estudo constitui uma revisão bibliográfica. As bases de dados Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Scientific Eletrônic Library Online (SCIELO) e National Library of Medicine (PUBMED). Foi definido como critério de inclusão: artigos publicados entre os anos de 1970 e 2020, os descritores utilizados foram: Transdiferenciação. Desenvolvimento reverso. Turritopsis dorhnii. Hidrozoários. Resultados: A análise dos trabalhos sobre a imortalidade da Turritopsis dorhnii contribuem para um melhor entendimento dos mecanismos que fazem com que esse organismo tenha a capacidade de transdiferenciação e desenvolvimento reverso, trazendo informações importantes para estudos dos mesmos mecanismos e que possam ser aplicados a outros organismos, inclusive no estudo de células humanas. Considerações finais: Concluímos que os estudos aqui reunidos a respeito da imortalidade biológica, são de grande contribuição, elucidando de forma cronológica as descobertas e apontando um direcionamento para os próximos estudos. Porém, fica evidente, a necessidade de estudos mais profundos no tema, principalmente na área molecular.
Metode Pose to Pose untuk Membuat Animasi 3 Dimensi Islami "Keutamaan Berbuka Puasa"
Authors: Abdilah Mahadir Muhamad Erfin , Fadila Juniardi Nur , Nugroho Fresy
Published: December 2021

Berkembangnya teknologi di bidang computer graphics memberikan kemudahan dalam mengolah suatu karya grafis salah satunya adalah animasi 3D. Dalam pembuatan animasi 3D terdapat permasalahan utama yang biasa menjadi tantangan bagi para animator. Permasalahan utama dalam pembuatan animasi 3D adalah kualitas gerakan yang kasar atau tidak terkesan nyata. Untuk membuat gerakan yang halus dan tampak nyata dapat dilakukan melalui banyak metode salah satunya adalah metode pose to pose. Animasi 3D islami berjudul Keutamaan Berbuka Puasa sebagian besar berisi gerakan dalam memperagakan taat cara berbuka puasa yang baik dan benar untuk mendapatkan keutamaan berbuka. Pembuatan animasi ini dibuat melalui software blender dengan menerapkan metode pose to pose. Sebagai hasil pembuatan paper ini, film animasi 3D berjudul Keutamaan Berbuka Puasa diharapkan dapat dibuat dengan kualitas gerakan yang bagus dengan menggunaan metode pose to pose serta dapat memberikan hiburan dan edukasi yang baik.
What Opportunities Exist for Making the Food Supply Nutrition Friendly? A Policy Space Analysis in Mexico
Authors: Cervantes Gloria , Thow Anne-Marie , Gómez-Oliver Luis , Durán Arenas Luis , Pérez-Ferrer Carolina
Published: December 2021

Background: As part of a global policy response for addressing malnutrition, food system actions have been proposed. Within food system interventions, policies directed to supply chains have the potential to increase the availability and affordability of a healthy diet. This qualitative study aimed to identify opportunities to integrate nutrition as a priority into the food supply policy space in Mexico. Methods: Data were collected through analysis of 19 policy documents and 20 semi-structured stakeholder interviews. As an analytical framework, we used policy space analysis and embedded the Advocacy Coalition Framework (ACF) and the steps of the food chain of the conceptual framework of food systems for diets and nutrition. Results: Policy issues relevant to nutrition were viewed differently in the economic and agricultural sectors versus the health sector. Overall, the main policy objective related to nutrition within the economic and agricultural sectors was to contribute to food security in terms of food quantity. Nutrition was an objective in itself only in the health sector, with a focus on food quality. Our policy space analysis reveals an opportunity to promote a new integrated vision with the recent creation of an intersectoral group working on the public agenda for a food system transformation. This newer integrative narrative on food systems presents an opportunity to shift the existing food security narrative from quantity towards considerations of diet quality. Conclusion: The political context and public agenda are favorable to pursue a food system transformation to deliver sustainable healthy diets. Mexico can provide a case study for other low- and middle-income countries (LMICs) for putting nutrition at the center of food policy, despite the ongoing constraints on achieving this.
Changing the Discourse in Ambitions Towards Universal Health Coverage: Lessons From Australian Primary Healthcare Comment on "Universal Health Coverage for Non-communicable Diseases and Health Equity: Lessons From Australian Primary Healthcare"
Authors: Simpson Sarah J. , Saint Victoria , Bozorgmehr Kayvan
Published: December 2021

While Australia’s health system has reached universal health coverage (UHC), recent scholarship points to its strengths and identifies ways it could be more effective and equitable, especially for tackling non-communicable diseases (NCDs). Building on the Australian experience, we add to these perspectives and present pertinent lessons for the quest towards UHC, and for policy-makers globally with regard to NCDs. Potential lessons include: the need for (i) vigilance – UHC requires ongoing monitoring and evaluation of not only financial risk protection but non-financial barriers and impacts such as forgone care; (ii) investment and action now on structural determinants of NCDs and related inequalities to avoid potentially higher (fiscal, social and health) costs in the longer term; and (iii) the opportunity for policy-makers globally and nationally to revisit their ambitions for UHC to include population health policies/ programs beyond essential health services that are required for healthier, more equitable and thriving societies.
Afet Yönetim Sisteminin İncelenmesinde Gönüllülük Hizmetleri ve Bazı Sivil Toplum Kuruluşları
Authors: AYDEMİR Ayşe
Published: December 2021

Ülkemiz, deprem, sel ve heyelan gibi doğal afetlerin sürekli olarak yaşandığı jeolojik bir konumda yer almaktadır. Geçmiş afetlere bakıldığında ülkemizde büyük kayıplar yaşanmış ve afetler kalkınmamıza engelleyici faktör olmuştur. Afet öncesi, anı ve sonrasında meydana gelebilecek kayıpları en aza indirgemek amacıyla pek çok mevzuat ve yönetmelikler hazırlanmış, yeni düzenlemeler getirilmiştir. Bu çalışmaların yanı sıra afetlerle baş edebilmek için toplumun oluşturduğu gönüllü yapılanmalar meydana gelmiştir. Nitelikli bir afet yönetim sisteminin oluşturulması ancak toplumunda katıldığı bir afet yönetim sistemi ile mümkün olabilir. Burada kişiler kendisi, ailesi ve yakınlarını korumak içgüdüsüyle afet yönetim sistemine gönüllü olarak katılmak istemektedir. Bu çalışmada ülkemizde afetlerde gönüllülük faaliyetleri ve bazı gönüllü hizmet kuruluşları incelenmiştir. 1999 Marmara depremi sonrası gönüllü hizmetlerin sayısında önemli oranda artış yaşandığı tespit edilmiştir. Gönüllü hizmetler afetlerde barınma, beslenme, arama kurtarma, yangın söndürme gibi çalışmalar yürüterek önemli katkılar sağlamaktadır.
Mensuração do engajamento online de estudantes do ensino superior
Authors: Ortega Fernanda da Cunha , Irala Valesca Brasil
Published: December 2021

Este artigo é uma revisão de escopo que tem o objetivo de identificar os instrumentos de coleta e de análise da mensuração do engajamento online utilizados em pesquisas internacionais, visando à escolha para utilização escalonável e adaptação ao Ensino Superior brasileiro. A pesquisa foi realizada na base de dados Dimensions, no período de 2017 a 2021. A quantidade de documentos obtidos foi de 162, que, após a etapa de triagem, resultou em uma amostra de dez artigos. Os instrumentos são contextualizados no ensino superior e os quatro mais atuais foram desenvolvidos no período de pandemia da Covid-19. A maioria dos artigos é de abordagem quantitativa e todos utilizam algum tipo de questionário de autorrelato para coletar dados, que são, em maior número, de perguntas fechadas e de escala Likert de 5 pontos. A técnica de análise que mais se repete nos artigos é a modelagem de equações estruturais. Dos dez questionários avaliados, concluímos que o de Sun e Rueda (2012) é o que melhor atende aos critérios para avaliação do engajamento online do estudante no contexto do ensino superior, ao trazer em seus elementos uma configuração passível de ser escalonável para diferentes contextos institucionais e abrangência de disciplinas.
Remembrance and Learning Skills and Their Relationship to Academic Achievement among University Students
Authors: AL-Momani Mohammad Omar , Rababa Elham Mahmoud
Published: December 2021

The study aimed to identify the memory and learning skills and their relationship to academic achievement among university students in Jordan. The descriptive approach was used in addition to the questionnaire as a tool for the study. The study sample consisted of (1000) university students from different universities, colleges, specializations and levels of study in different Jordanian universities, and the study was applied The study was conducted in the second semester of the academic year (2020-2021), and the study reached a set of results, which is that university students in general possess a high level of learning skills, recall and academic achievement, in addition to the existence of a direct relationship between learning, recall and academic achievement for the members of the research sample . The study found that there are significant differences in the skills of learning, memorization and academic achievement between the academic disciplines of the female students) Scientific and Humanitarian) and for the benefit of scientific specialization .
IIASRH: An Integrative IoT Approach for Smart Rainwater Harvesting
Authors:   Department of Computer Science and Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai (Tamil Nadu) India., Talari Praveen , M Anirudh ,   Department of Computer Science and Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai (Tamil Nadu) India., M Sairam ,   Department of Computer Science and Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai (Tamil Nadu) India., Jebakumar K Varun ,   Department of Computer Science and Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai (Tamil Nadu) India.
Published: December 2021

Rainwater harvesting is one of the oldest practices used to conserve and optimize water resources. Nowadays, there are a lot of public and private facilities which have well-constructed Rainwater Harvesting systems. Still, they usually can't test the quality of the water preserved and has no mechanism to purify the impure content to make them consumable. Many known techniques are primitive and conventional for today's standards. The existing systems don't provide connective features, water treatment or contingency measures to counteract any problem. Usually, these systems are integrated onto blockchains, AI, and some other domains to innovate a new paradigm. Still, the results are generally considered a gimmick and are not helpful for general usage. This lack of compatibility and features with no effective solution needs to be rectified, and a real-world upgrade is required to construct a connected, safe and effortless system is imminent. Therefore, an integrative domain approach is necessary to facilitate the process to tackle these problems, where one of the major domains in technology, such as IoT, is used. The proposed model addresses the issues native to the conventional method and provides a connective environment with water treatment capabilities to establish an effortless and connected Rainwater Harvesting system through IoT with precise results and scopes that help the said challenges.
Failure Prediction of Wind Turbine using Neural Network and Operation Signal
Authors:   Researcher, Seoultech NDT Research Center, Seoul National University of Science & Technology, South Korea., Hwa Kim Dr. Dong , Kim Young Sung ,   Seoultech NDT Research Center, Seoul National University of Science & Technology, South Korea.
Published: December 2021

This paper deals with a novel prediction method for wind turbine by using neural network and operating data. As wind turbine transfer wind energy to electrical power energy, its structure has rotation part that capture wind energy, mechanical part, and electrical part that convert from mechanical rotation to electrical energy. Its working environmental situation is so bad like high mountain, sand desert, and offshore to capture good wind situation. Therefore, its control and monitoring should have high reliability for long terms during operation because its maintenance and repairing is very difficult and economically high cost. As wind turbine system is composed of three parts, there are many components that should be monitored to failure. This paper suggests neural network and operation data-based prediction method that can predict components' failure through data comparison and neural network's training function with easy expression of 'Yes' or 'No' for operator.