bluuebunny/crossref_metadata_2025 huggingface dataset:
Web-based Knowledge Management System for Camarines Norte State College
Authors: Maligat D E , Torio J O , Bigueras R T , Arispe M C , Palaoag T D
Published: May 2020

One of the issues of the academic institution is knowledge management. How the academe disseminate information over the academic community on real time and the availability of knowledge anytime and anywhere is challenging task in every institution. The objective of this study is to develop Knowledge Management System for Camarines Norte State College that is capable of knowledge sharing, creating and knowledge repository. The developed KM system is designed specifically to cater the requirements of the academic institutions especially Camarines Norte State College in terms of knowledge management. A usability test was conducted to find out how far the academic community can interact efficiently and effectively and how far the system application provides user guidance, provide information, and provide consistent interaction. The pooled mean of the overall usability test was 4.55 with adjectival rating of SA or strongly agree, which means that the system has the functionality needed by the users, easy to use and the system is very useful. Moreover, KMS in Higher Education Institution (HEI) could help in the growth of learner centered knowledge and action learning, growth in work-related learning, movement from closed to open knowledge systems and extensive development in computer-based communication technologies.
Development of an Augmented Reality Mobile Application to Enhance the Pedagogical Approach in Teaching History
Authors: Elivera A , Palaoag T
Published: May 2020

The rapid advancement of technology nowadays opens new opportunities for schools and universities worldwide to improve the quality of teaching and learning experience using Augmented Reality can help make classes more interactive and allow learners to focus more on practice instead of just theories. The researcher identified the problem that pedagogy has not been learner-cantered in most approaches in teaching and that teachers need to adapt to the new method of teaching. The goal of the study is to develop an Augmented Reality (AR) mobile application to enhance the pedagogical approach in teaching. This will use a marker-based method for transmitting virtual objects into the realworld. Blippar was used in the development of AR. This resulted in the form of instructional material and technology that can be used in teaching. During the testing of the material Students’ interest was aroused and it even makes them more eager to learn the subject. End-users and experts also deem that the AR mobile application as usable and acceptable with a rating of 78% using the System Usability Scale (SUS). This is an excellent contribution to the educational domain through augmented reality and improving the pedagogical approach in teaching.
In-store Customer Shopping Behavior Analysis by Utilizing RFID-enabled Shelf and Multilayer Perceptron Model
Authors: Alfian Ganjar , Syafrudin Muhammad , Rhee Jongtae , Stasa Pavel , Mulyanto Agus , Fatwanto Agung
Published: May 2020

Understanding customer shopping behavior in retail store is important to improve the customers’ relationship with the retailer, which can help to lift the revenue of the business. However, compared to online store, the customer browsing activities in the retail store is difficult to be analysed. Therefore, in this study the customer shopping behavior analysis (i.e., browsing activity) in retail store by utilizing radio frequency identification (RFID)-enabled shelf and machine learning model is proposed. First, the RFID technology is installed in the store shelf to monitor the movement tagged products. The dataset was gathered from receive signal strength (RSS) of the tags for different customer behavior scenario. The statistical features were extracted from RSS of tags. Finally, machine learning models were utilized to classify different customer shopping activities. The experiment result showed that the proposed model based on Multilayer Perceptron (MLP) outperformed other models by as much as 97.00%, 96.67%, 97.50%, and 96.57% for accuracy, precision, recall, and f-score, respectively. The proposed model can help the managers better understand what products customer interested in, so that can be utilized for product placement, promotion as well as relevant product recommendations to the customers.
Usability Analysis with Webuse Model in Information System Design in Monitoring Child Growth and Development
Authors: Martono Kurniawan Teguh , Nurhayati Oky Dwi , Didik Widianto Eko
Published: May 2020

Information system today becomes a core need for any organizations as it can help in data management for resulting in the structured data. Also, the use of information system can assist the organization in minimizing the errors in making a policy. One of organizations implementing such system is POSYANDU or Integrated Service Post that is predominantly in charge of monitoring the child growth and development. In this research, a process of testing the information system was conducted using the WEBUSE (Web Usability Evaluation) model aimed to observe the level of usability of the system. Based on the results of the test, it has been found that the average values of the system were 0.69 indicating that the system was at the Good level of usability. Thus, the system can work in accordance to the needs of the users.
Document Tracking and Monitoring of Expenses for State Universities and Colleges Responsibility Units
Authors: Capucao Joni Neil , Sierra Sean , Cuya Kennedy , Cruz Josephine Dela
Published: May 2020

The increasing data volume generated by higher learning institutions, aggregating of expenses, and locating files among tons of others can be a tedious and time-consuming process. Partido State University does not have a document and expense tracking system, making it difficult for the clientele to determine the status of their submitted documents. The development of document tracking and monitoring of expenses system for the University is a responsive, professional committal of the proponents in addressing this gap. The descriptive method explained the existing processes and developmental method in the creation of the system. Semi-structured interview among office personnel revealed the University offices need to adopt online software. In the systems’ dry run, the faculty, the staff, and the students gave an overall very good (4.33 and 4.45) ratings for functionality and usability, and also an excellent overall rating of 4.5 for efficiency. The respondents strongly considered the adoption of an online system. The evaluation results manifested by the Accurateness in Functionality (4.63, excellent), Learnability in Usability (4.63, excellent), and Time Behaviour in Efficiency (4.63, excellent) have indicated that the system satisfied all the requirements. After its implementation, if some flaws may surface, adjustments could just be easily adapted.
Customizing Academic Knowledge Management System Architecture Framework based on Enterprise Architecture
Authors: Maligat D E , Torio J O , Bigueras R T , Arispe M C , Palaoag T D
Published: May 2020

This work is centered on making sure that it fosters out the purpose of knowledge management systems framework for the sake of making use understand how best it is used in terms of capturing, utilizing and transferring knowledge from one entity to another. The literature review as well as the document analysis were both used in combination for the purpose of making sure that all the interviews that were used were better expounded in different platforms such as stakeholder, faculty and administrator. Further, the academic knowledge management system Architectural framework had to be utterly customized on matters to do with the intelligence concept, Debrose and the Enterprise Architecture. It is through the use of this framework that then functionality of the organization is categorized in to three namely; the people, technology as well as the application that is required for use. Further, it is true that there are some benefits that are linked with the use of this kind of framework that are easily accessed on the available knowledge and helps in decision making process for the entire administration and the knowledge repository creational matters.
Intelligent system for identification of the soil parameters during the movement of the tracked vehicle
Authors: Naumov V , Mashkov K , Byakov K , Fedorenkov A
Published: May 2020

The authors propose a schematic structure of the intelligent system for the real time identification of the soil parameters during the movement of the tracked vehicle. The system is compared with the methods of the driving conditions prediction based on the analysis of databases, contactless telemetry, terrain scanning, etc. The possible advantages and disadvantages of these methods are specified. The descriptions of the system blocks are given, the purpose and interrelation between the components are considered in detail. Requirements of the blocks and separate components of the system are specified. The concept of integration of the system for identification of the soil parameters during the movement of the tracked vehicle into an autonomous motion control system is presented. The authors offer a method for the soil characterisation without the use of databases. The method is based on the solution of the direct and inverse problems of terramechanics for the tracked autonomous mobile complexes. The article contains typical performance examples fordifferent types of soils used for the development of the algorithms of the system foridentification of the soil parameters. Different identity criteria are proposed for checking the conformity of the soil performance models to its real performance. The article contains the analysis of the technical problems to be solved during development of a system for identification of the soil parameters.
Investigation of the influence of the dynamic system parameters on its frequency and modal spectrums
Authors: Lahtyukhov M , Fominykh A
Published: May 2020

The influence of parameters of dynamic system on its frequency and modal spectra is investigated by the example of chain unbranched dynamic system with finite number of degrees of freedom. The general regularities between the parameters of the chain dynamic system and its frequency and modal spectra are determined. It is established that according to the own spectrum of the chain dynamic system the inflated estimation of the interval width of eigenfrequency change at variation of any parameter may be given. The criterion, allowing to determine the structural parameters of the system, which significantly affect the given natural frequencies, is obtained.
A method for selecting parameters of the electromechanical transmission of an industrial tractor
Authors: Padalkin B , Stadukhin A , Kositsyn B , Balkovskiy K
Published: May 2020

The article describes a method for selecting the torque — speed characteristics of the drive motors and parameters of the electromechanical transmission of an industrial tractor. In order to provide the maximum performance of the tractor the transmission developed in the research has two gears:transportation range and technological range. The distinctive feature of the transmission is the use ofthe ZK tank steering systemdeveloped by the researchers of BMSTU (G.I. Zaychik, M.A. Kreynes, M.K. Kristi).The authors have studied the impact ofthe design parameter of the planetary gear sets of the ZK mechanism on the tractor performance. The torques and drive motor rotor speeds providing required performance in a turn as a functions of the planetary gear design parameter have been calculated. Also the time of the tractor full turn around its center of mass and around one braked track when the transmission operates in the transport and technological ranges has been found. An finaly, the impact of the tractor transmission parameters on the maximum tractor speed at manoeuvring has been analysed. The results of the analysis were used for selection of the electric motor output power providing a comfortable work for the tractor operator.
Modeling of viscoelastic properties of composite springs in wheeled vehicles suspension systems
Authors: Evseev K , Kartashov A
Published: May 2020

The article provides a review of models allowing to take into account the viscoelastic properties of springs made using polymer composite materials. The features of solving equations with fractional derivatives that describe the considered models are considered. The equation of the stress-strain state of the composite spring is obtained, which takes into account the rheological properties of the material. A model has been developed in MATLAB / Simulink, which allows calculating composite springs. A composite spring was made and tested, which made it possible to compare the elastic characteristics of the spring obtained as a result of modeling and experiment. The authors of the article determined the scope of such springs in the automotive industry and the direction of improvement of composite springs used in wheeled vehicles.
Design mixed formula of hot mix asphalt mixture very thin overlay using crumb rubber
Authors: Sunarjono S , Wijaya P A , Hidayati N , Magfirona A
Published: May 2020

One of the technologies expected to improve the quality of flexible pavement is to use a modified asphalt mixture of Crumb Rubber (CR). The material can be used as a very thin added layer which is then called Very Thin Overlay Modified Crumb Rubber (VTO Mod-CR) and the functions as a leveling layer. This asphalt mixture is expected to have high durability and increase the age service life of flexible pavement. The aim of this study was to analyze the design mix formula (DMF) and the durability of the asphalt mixture. This research carried out variations of asphalt content i.e. 6.0%, 6.5%, 7.0%, 7.5% and 8.0% with each variation of 3 specimens for Marshall Test. Based on the DMF analysis results obtained optimum asphalt content of 7.00%, while the properties of the mixture in the form of bulk density of 2.240, VIM of 3.77%, VMA of 18.15%, VFA of 79.23%, Stability of 1049 kg, Flow of 3.47 mm, Marshall Quotient of 251 kg / mm, Bitumen Film Thickness 16.08 µm. The results of the analysis of the mixture properties have met specifications General of Highways, so it can be used as a reference for AMP. The BFT value obtained meets the minimum specification specifications of 16 µm, this shows that the resistance to water and oxidation is higher, so the pavement becomes durable.
Recognition of Image Pattern To Identification Of Braille Characters To Be Audio Signals For Blind Communication Tools
Authors: Ramiati  , Aulia Siska , Lifwarda  , Nindya Satriani S.Ningrum
Published: May 2020

The five senses are a source of information in humans. The sense that is the main source of information is the sense of sight. Some humans are created with limited sense of sight. The blind performs reading and writing activities using Braille characters. Braille characters are writing or printed systems for the visually impaired in the form of codes consisting of six dots in various combinations that are highlighted on the paper so that they can be touched. Those with significant visual impairment need special education or learning services. Information is very important for everyone, including blind people. Submission of information is done through various media. One media that is often used is print media such as books. But books available on the market do not adapt the way for blind people to capture information. This research offers alternative solutions to overcome the above problems, namely communication aids for reading the blind. The implementation is in the form of a scanner and webcame that is equipped with a braille character text to speech system as an alternative to the lack of blind reading media, especially braille print books. The method, the reading of Braille character scripts by studying braille characters from a to z. First, a webcame or scanner captures braille characters. Second, the system will convert Braille characters and translate Braille characters into alphabetical form through Optical Character Recognition (OCR) image processing. Recognition of Braille character patterns in written text using Artificial Neural Networks (ANN). The results of research on braille character testing are in the form of alphabetical texts a to z, and audio signals of alphabet pronunciation. The results of testing the introduction of braille character patterns using a scanner for training data 100% and for testing data 90.38 % and 96.15 %.
Android-Based Chicken Development Monitoring Application
Authors: Erianda Aldo , Huriyati Putri , Sukma Fanny
Published: May 2020

Eggs are one of the staples of Indonesian people’s food. Based on data from the Central Statistics Agency (BPS), it was found that the total national egg consumption in 2018 was 2,766,760 tons. As for the total production of 2,968,954 tons, so there was an excess of 202,195 tons of national stock. Even though there is excess stock, the current market price is unstable due to seed restrictions, so the chicken is slow to produce. In addition, the weather in the environment around the cage also affects the productivity of laying hens. In linda chicken farms, the problems faced are the same as those above, weather factors affect the health and productivity of chickens. If there is an unstable temperature and weather many chickens will experience pain and may even die. In this case, breeders sometimes do not know how the temperature and the weather are housed, whether or not the chicken needs it. With this Kancer system, breeders can monitor the development of laying hens and cages. Starting from the active or not the chicken is producing, changes in temperature, humidity and notification if there is rain. Microcontroller device that is installed in a cage and connected to a wifi network will send data temperature, humidity and rain detection to the server, then from the server the data will be processed and then sent to the application. And to monitor the productivity of each chicken, the kancer system utilizes the qrcode that has been stored per-chicken data, then through the kancer qrcode application is scanned and the application will display chicken data ranging from age to the number of eggs produced by the chicken.
A Virtual Reality Based Surgical Simulation as an Alternative of Halal Surgical Trainings and Better Surgical Planning
Authors: Rianto Sugeng
Published: May 2020

The growing of medical industries need cadaver as a part of full filling better understanding of the components of surgical competency in teaching surgical technical skills in safe and pedagogically efficient environment. However, majority of Muslim scholars argue that using cadaver for surgical trainings are not permissible (haram), thus to find alternative halal procedures replacing cadaver in surgical training are urgent. Moreover, the old approach of ‘see one do one, teach one’ is no longer acceptable to either the surgical profession or to the well-informed and demanding public. New tools have been developed for teaching and assessing technical skills outside the operating room using virtual reality simulation, which has been applied for many years with great success in many industries including aviation and the military. With software development, the simulators now enable users to perform complete procedures with the added simulation of rare anatomical variations and various pathological conditions. The interface of these high-fidelity systems enables the surgeon to ‘feel’ the tissue (haptic feedback). Although, the realism of these simulated procedures is still suboptimal and the high cost of virtual reality simulators, the advantages of the high-fidelity, high-cost systems have not yet been demonstrated and our studies have established the potential advantages of procedure-specific simulation. The research using phantom-omny haptic to enable surgeon to “feel, touch, and interact” with tissue, fluid, and bone during surgical procedures using PC based simulator.
Cold Smoking Equipment Design Of Smoked Fish Products With Closed Circulation Using Temperature And Concentration Monitoring System Based On Arduino Uno
Authors: Jayanti Titik Ayu Dwi , Sudarmanto Agus , Faqih Muhammad Izzatul
Published: May 2020

This study aims to develop a cold smoking equipment by improving the air circulation system in a fish smoking equipment with the position of the fish hanging vertically. The components used are DS18b20 sensor, MQ-2 sensor, arduino microcontroller, LCD, micro SD. Cold smoke testing is done by monitoring the temperature and concentration of smoke. The type of fish used in this study is the type of flying fish (Decapterus). The analysis used to determine the outcome of cold-smoked fish is water content. The results showed that the average temperature in the smoking room was (23.18-44.81)°C. While the smoke concentration obtained is (230-252) ppm Temperature and smoke concentration as desired and the results of the sensor data recording are stored in micro SD. The average value of the water content of smoked fish is (25.53%-32.45)%. The lowest water content of smoked flying fish is 25.53% at 6 hours fogging duration and the highest water content of floating fish is 32.45% at 3 hours fogging duration.
Technical Design and Financial Feasibility Analysis of Off-Grid Photovoltaic Power Supply System for Residential Load
Authors: Hamid Muhammad Imran , Afifah
Published: May 2020

Due to intensive promotion to use renewable energy, by the various benefits obtained by utilizing, and then supported by advances in generation technology: causing various parties to divert the type of fuel for their energy use activities. The same thing happens to residential electricity consumers, driven by the advantageous of electricity power generation that can be done on the consumer side, independent operation, reliability and quality of power, many consumers try to install renewable energy based generation such as photovoltaic system for their electricity supply. However, looking at the tariff of utility electricity and considering the investment needed: building a photovoltaic-based supply system is not necessarily the right choice. This paper presents a technical design for electricity supply of a residential load through an off-grid photovoltaic system. The technical basis for designing and the capacity of its constituent components is explained, as well as the analytical techniques carried out to assess the financial aspects of the development and operation of the system. The results of this analysis can be used for deciding whether it is appropriate to divert the source of electrical energy to the photovoltaic system. To show the steps of the analysis, a case study was carried out by designing an off-grid photovoltaic system for a residential load characterized by its daily load curve. The capacity and costs were calculated and financial analysis is carried out by looking at the extent to which the designed system can provide comparable benefits if the power is supplied from the utility at the prevailing price, as well as how long the system must be operated to obtain a breakeven return on investment. Based on the daily load curve in this case study, it is known the total daily energy consumption of the load is 6.885 kWh. This amount of energy must be provided from photovoltaic module with 5 hour effective per day, so the minimum capacity of PV-module is 1463.65 W. For an autonomy time of 1 day, a minimum energy storage capacity of 8.965 kWh is required. Investment costs which include the cost of procurement, system development, and the tax are Rp. 150,008,037. The financial benefits are calculated based on prices of the PLN 2016 non-subsidized tariff. It was assummed that the energy used that should be supplied from PLN, is substituted by photovoltaic generation system. NPV analysis and Payback period shows that the off-grid photovoltaic generation system will be feasible if the electricity price is 2.3 times the current price, and the discount factor (DF) for construction is 2.5%, in such electricity prices and DF factor, the payback period is reached if generation system is operated at least until the end of the 25th year. Financial analysis showed the inability of the off-grid electricity supply scheme based on the designed photovoltaic generation for current conditions.
Accessibility Analysis of Potential Vertical Evacuation Site (PVES) from Tsunami of West Sumatra Governor’s Office Escape Building in Padang
Authors: Syukri Andi , Sari Desnila
Published: May 2020

Potential Vertical Evacuation Site (PVES) from tsunamis, namely as shelter, is an alternative evacuation solution for the coastal communities in Padang City to people from tsunami despite off to using horizontal evacuation routes. PVES building as evacuation shelter is not identified yet as a proper shelter regarding as structural, management and social impact for safety and it needs recommendation and technical data for better routes and evacuation. The accessibility of PVES’s does not technically measure from the community who will evacuate to it. They just acclaimed as shelter just designed resistant from the earthquake and the location just based on the Tsunami Evacuation Map in 2011 and Stanford University research evaluation for vertical evacuation buildings. The adequacy of evacuation routes to PVES need to be confirmed and have a prior recommendation for surround community how to get there safely. Based on traffic Google Map data create a real-time simulation for people act with their activity and it will project the how they reaction if they need to evacuation to PVES promptly. This study will obtain level of travel time vulnerability, capacity and evacuation ratio for West Sumatra Governors Escape Building as a first building had been built as PVES in Padang City, West Sumatra.
Analysing Motorcyclist Characteristics and Parking Behaviours towards Different Parking Schemes
Authors: Yaldi Gusri , Nur Imelda M. , Apwiddhal  , Army B. , Amri Syaiful , Ali Syaifullah , Wisafri
Published: May 2020

Unlike developed countries, traffic characteristics in developing countries are dominated by passenger cars and also motorcycles. For example is Indonesia where more than 70% of transport mode share is contributed by motorcycles and a number of the riders are below age indicating poor law enforcement. This figure is suspected to worsen the transport negative impacts like road accidents as well as congestion level due to poor behaviour of motorcycle riders. Therefore, any efforts to reduce the trip number by mode of motorcycles on the road as well as improving their rider behaviours are necessary. For example is by managing motorcycle parking facilities like in this research. The results of this study suggest motorcycles were used as the primary transport mode for low income people mainly for studying and working. Further, motorcyclists tend to park for long time period with parking areas located about 50 meters from the activity centres. Off-street parking facilities are preferred than on-street parking. These findings are expected could be a considerable contribution for policy makers in minimizing the negative impacts of transport, in particular related to motorcycle usage.
Design of PLC-based Control System for 18650 Lithium-ion Battery Dismantling Machine
Authors: Hadiwibowo Suryo , Wisambodhi Satria Mahardhika , Mahardika Muslim , Perdana Indra
Published: May 2020

The dismantling process of 18650 lithium-ion battery aims to separate the shell from its contents that contain lithium. The dismantling process is carried out using pneumatic components that automated by using a programmable logic controller (PLC). This research was conducted through 5 stages of the process, namely: machine designing and manufacturing, pneumatic system designing, PLC control designing, assembly, and testing. The design of pneumatic systems and their control is carried out to get the easiest and most effective working system.
Automatic Broadcast Transmission Control With 8 Relay Channels Based On Arduino
Authors: Hardiyanto Denny , Priyambodo Sigit , Kristiyana Samuel , Enrico Colif Ar R
Published: May 2020

This Automatic broadcast transmission control is a device that functions to replace a manual switch to an automatic switch with a programmed starting timing process. This device consists of an LED VU Display as an indicator of the voice signal input, a monostable multivibrator as a timer, an Arduino Uno as the main control, and an 8 channel relay module as a substitute for a manual switch. This tool works when the voice signal is active, then relays 1 to 8 will be active, but if the voice signal is off, relays 8 to 1 will be deactivated gradually. On off this channel relay is determined by programmed timing. The results of the experiment show that the active and non-active time of the relay can be programmed in stages with a time difference of 1 second for each relay. Automatic Transmission Control with 8 Relays using Arduino Control is able to automate switching from manual switching to programmable automatic switching.
Analysis of Electrical Power Quality Disturbances Based on Empirical Mode Decomposition and Statistical Parameters
Authors: Rofii Faqih , Naba Agus , Dharmawan Hari Arief , Hunaini Fachrudin
Published: May 2020

Power quality becomes a severe problem due to the increasing use of nonlinear electrical loads, complex electric power systems on smart grids, inverters in renewable power plants, and electronic control equipment. Power quality problems include variations in voltage or current such as sag, swell, flicker, spike, overvoltage, undervoltage, interruption, transient, harmonics, and frequency fluctuations. Research on power quality disturbances mostly applies signal processing and transformation methods such as Fast Fourier transform, S-transform, and Wavelet. In this paper, we use empirical mode decomposition methods and statistical parameters to analyze power quality disturbance signals. It gives more detailed characteristics of power quality disturbances. We conducted a six-step analysis to get a percentage of each power quality disturbance signal. The developed method provides a preliminary description of the power quality characteristics from the percentage values of RMS, range, and energy levels at the first IMF. The positive percentage indicates the existence of power quality disturbances contains flicker and swell, while negative indicates contain harmonics, sag, and transient.
Analysis of Wireless Fire Detector Application to Detect Peat land Fire Based on Temperature Characteristic
Authors: Marpaung N L , Amri R , Ervianto E
Published: May 2020

Fires of land and forest happened in Riau, give negative impacts to people and its environment. This research discusses about analysis of Wireless Fire Detector as Early Warning System of Peat-land Fire using LM35 Temperature-Sensor, Transmitter-Module(HC-12), Receiver-Module(HC-12), Arduino-ProMini, to produce outputs on LED, LCD, Buzzer. Peat-land fire Detector works when peat land is burning, so its heat spreads through aluminum stem. This temperature is read by Temperature-Sensor1-Temperature-Sensor4. Output of every sensor is sent to each Transmitter-Module(FU1–FU4) in Arduino-ProMini control block. After that, Transmitter-Modules(FU1–FU4) send the readings of sensor to Receiver-Module(FU5). In one time, only one data is received by Receiver-Module from Transmitter-Module. Then, it goes to Arduino-ProMini and processed to get outputs on LCD that display ID of FU1–FU4, Peat-land Status by three activated LEDs, Peat-land temperature. If Green LED is active, means Peat-land not burned. Its temperature is 0°C–21.9°C. LCD displays of SAFE Condition, Buzzer OFF. If Yellow LED is ON, means Peat-land burned underground. Its temperature is 22°C–28.4°C. LCD shows BE-CAREFUL Condition, Buzzer ON. If Red LED is active, means Peat-land burned on the ground. Its temperature is 28.5°C–50°C. LCD displays DANGER Condition, Buzzer ON. This equipment works as its framework.
Android-based energy saving control system integrated with islamic value on lamp switching power
Authors: Hertanti Erina , Maswani  , Farasdaq Muh. Hifdzil , Imtiyaz Fatih
Published: May 2020

Lighting is one of the major consumers of electricity and it is often found to be inefficient in its use. Therefore, this study aimed to provide solutions to these problems through energy-saving behavior that is integrated with Islamic values on lamp switching power. This study use system design build methods. This design results in the form of hardware and software assembly. The results of the performance test of the integration of hardware and software devices provides informations as follow: first, control system of application has not been able to operate on all mobile platforms. Second, the connection range of the control system is able to operate according to its standard frequency range. Third, the connection access of control system is able to pass through the barrier which has a small inhibitory. Fourth, the success of the control system in executing input is high.
Modeling and the Validation Model of PM10 Concentration due to the Changes in the Dominant Wind Direction to the Road in the Roadside Area
Authors: Bachtiar Vera Surtia , Purnawan  , Afrianita Reri , Mustofa Iqbal , Anugerah Randa
Published: May 2020

This study aims to model and validate the PM10 concentration from the transport sector and its relationship to the characteristics of traffic, wind speed and wind direction. PM10 was analyzed using the gravimetric method. Sampling were taken twice, with the first sampling carried out at 3 monitoring points representing the different angles of arrival of the wind direction towards the road (α), i.e. 0°, 30° and 60°. For validation, a second sampling was carried out at 0°, 45° and 90° angles. The statistical analysis used correlation and regression tests. Validation tests were carried out using the Pearson Product Moment formula and the Two Variance Test. The sampling results showed that the highest concentration was on a road with an angle of 60° with a concentration of 107.748 μg/Nm3 (number of vehicles 3,219 units and wind speed 0.3 m/s). The lowest concentration was at an angle of 0° with a concentration of 19,298 μg/Nm3 (number of vehicles 680 units and wind speed of 0.98 m/s). Increased traffic volume and density was found to be proportional to the increase in PM10 concentration. Vehicle speed and wind speed have an inversely related relationship with increasing PM10 concentration. There was a decrease in PM10 concentration in traffic volume from α 90° to 60° by 26%, α 90° to 30° by 29% and α 90° to 0° by 61%. There was a decrease in PM10 concentration at the traffic density from α 90° to 60° by 17%, α 90° to 30° by 33% and α 90° to 0° by 51%. The results of the Two Variance Test showed there to be no significant difference in the yield variability between the two PM10 parameter concentrations. This is indicated by the value of the Test Ratio (RUf) being lower than the Critical Point. The validation test conducted using the Pearson Product Moment formula shows that the two equations tested can be declared valid and used to determine the concentration of PM10. This is indicated by the value of R (correlation coefficient) having been calculated as greater than the value of the R table for all parameters.
Numerical Modeling With HEC RAS and Scour Empiric Equation To Estimating Scour Depth on Abutment (Batang Kalu River Bridge Case)
Authors: Agus Indra , Dalrino  , Sadtim  , Alwys Munafri , Yolanda Noftar
Published: May 2020

The riverbed around the abutment can experience scouring caused by flow, because its is always directly related to river flow. Abutment can obstruct the flow of rivers causing changes in flow characteristics which in turn will cause local scouring around these buildings. Toe Scour around abutment will be very dangerous and cause loss of stability on the bridge. The case of structure failure on Batang Kalu bridge in Korong Pasa Usang Nagari Kayu Tanam, Padang Pariaman Regency on Monday (10 December 2018) is a clear example of toe scouring. A case study of toe scour was on the Batang Kalu River bridge structure has been carried out. Rainfall data closest to the study location, Kandang Empat Station was used to minimize the errors in the calculation of flood discharge design. Numerical modeling with HEC RAS and scouring estimation with some empiric equation was conducted to predicting scour depth on abutment. Simulation results show scour depth results to an average of 2.731 m and close to the scour depth that occurred in the field (2.83 m). Results showed that the local scouring in the Batang Kalu River bridge structure can be suspected as the influence of the increasing river steepness. Discharge that is triggered by heavy rain with a long duration and increased river flow velocity due to steepness has the potential to create a very intense scouring. Increasing of steepness may have been caused by sand mining activities in the upper reaches. Further studies are needed to see the potential slope changes due to exploitation in the Batang Kalu River upper reaches.
Multi Sensor-Based Failure Diagnosis using the Mahalanobis Taguchi System
Authors: Susanto B S P , Kurniati N
Published: May 2020

Heavy equipment in the mining industry is an essential instrument in achieving the company’s production targets. But on the other hand, heavy equipment is complicated and expensive equipment. These problems can be overcome by leasing the equipment to an external agent. In the lease contract between the lessee and lessor, it is discussed about the maintenance strategy of the equipment that will be rented by the lessee. This research presents a real-time monitoring scheme based on multi-sensor data installed on the machine. Case studies from this research were carried out on excavator units in heavy equipment rental companies. The Mahalanobis Taguchi System (MTS) method is used to handle multi-sensor data. Multi-sensor data is grouped into normal condition groups and abnormal condition groups. The variables used to monitor excavator conditions include vibration, pressure and temperature sensors. Based on the results of the calculation of the excavator threshold conditions using the Mahalanobis Distance (MD) measurement technique, the threshold of normal conditions is (-2.137 to 4.121). In contrast, in abnormal accumulator conditions (4, 331 to 39, 458), pump failure (40, 956 to 138, 048), valve failure (2708, 104 to 3404, 187) and the threshold in the condition of the cooler failure is (10736.160 to 11434.151). This research shows that the MD-based CBM scheme produced can detect, identify, and isolate the failure of excavator components under study.
Quality Improvement for Product Body 2-1 at PT. X
Authors: Saragih Johnson , Fitriana Rina , Andriyan Tri
Published: May 2020

Customer satisfaction is an important indicator for companies to improve the quality of products or services. And if the customer feels satisfied it will automatically increase sales so that it also impacts on the company profits.PT Y is one of the customers who are not satisfied with the product produced PT X, because based on data from January to December 2018, the average monthly defect is 2.34 % whereas the company target is 0.2 %.Therefore in this research it is necessary to minimize the level of defects with the Six Sigma. With five stage, Define, Measure, Analyse, Improve and Control. The proposed improvement provided are installing pins on the stopper, making checklist form of dies check, updating the SOP on the bending process, the results Defect per Million Opportunities (DPMO) before implementing is 19.268 after implementing is 18.229 or decrease (5.3 %) and Sigma level before implementing is 3.57, after implementing is 3.59 increase (0.5 %)
Implementation of backpropagation artificial neural network for early detection of vitamin and mineral deficiency
Authors: Sevani Nina , Aang Soenandi Iwan , Saputra Fajar
Published: May 2020

Basic Health Research data in 2018 show that around 95.5 percent of Indonesian people less consumption of fruit and vegetables. This condition then leads to the suspicion of vitamin and mineral deficiency in Indonesia people. Several methods have been used to detect vitamin and mineral deficiency, such as convolutional rule-based and certainty factor method. However, these methods are less adaptive to adapt to the changes in symptoms when detecting vitamin and mineral deficiencies. This paper proposes an artificial neural network (ANN) using backpropagation (BPN) to detect the vitamin and mineral deficiencies in the human body. Using 107 input of physical symptoms and 17 output of the type of vitamin and mineral, the architecture of the ANN consist of 107-50-17 neurons for the input layer, hidden layer, and output layer respectively. Based on some trial and error experiments, can be determined the epoch, the learning rate, and the error rate to produce the optimal result of the detection. This experiment using 623 epochs, 0.0517 error rate, and 0.1 for the learning rate. The performance measurement conducted using precision, recall, and F-score, for each class output. The experiment shows the proposed ANN using BPN reaches an accuracy level of 73%.
Determination of Multi-Product Distribution using Capacitated Vehicle Routing Problem (CVRP) and Product Cubication Dimensions Restriction
Authors: Yogaswara Yogi , Resi Andriyani Neng
Published: May 2020

CVRP is one of the transportation problems with the characteristic of the limited capacity of the vehicle. PT. Trikarsa Mitra Utama experienced transportation problems in the distribution of 3 types of paint products to 12 consumers, with 2 different units of vehicles. This research discuss how to determine the distribution route of paint products by considering the capacity of the vehicle based on weight and different cubication dimensions of the product. The method used for this problem is the Saving Clarke and Wright method besides that the Cube IQ software is used to loading products on the vehicle based on cubication dimensions. Besides being able to influence the process of preparing transportation routes, the results of the optimum loading process will also be used as a plan for product preparation in vehicle. The routes formed from the calculation results are classified into 3 clusters. Cluster 1 with route 0-H-K-D-I-L-0, cluster 2 with route 0-G-F-J-E-C-0, cluster 3 with route 0-A-B-0 gives a total mileage of 288 km and a travel time of 695 minutes using the same vehicle by colt diesel engkel (CDE).
Measurement of Feasibility and Risk Level on Modern Embroidery Kebaya Boutique Establishment in Jakarta
Authors: Hanaa R W , Chumaidiyah E
Published: May 2020

Business X is a creative business in Kebaya clothing, fabrics, and modern embroidered batik. The survey states that many medium business category turn into micro businesses due to the increasing number of imported textile products, resulting in a narrower market share. Under this condition, the company decided to create a Business X boutique considering that the products were not sold alone but at department stores that has a very high competition because of the large apparel industry continued to expand its business. In this paper, a feasibility analysis and the risk level measurement of the opening of this boutique are carried out. The market aspect begins with the distribution of questionnaires to obtain the demand and income projections. The technical aspects is for determining location using factor rating, layout and funding needs. Financial aspects estimate sales revenue and cashflow. The calculation results show NPV>0, PBP in 2, 989 years, and IRR(40%)>MARR(10.99%), it can be concluded that the Business X boutique establishment is feasible. The risk is 21.7% and with a MARR (10.99%), the rate is 32.69%. Based on the rate value that is smaller than the IRR(40%) and NPV>0, then by observing the level of risk, this business is feasible.
Determinants of Donation Behaviour on Flood Disasters in Indonesia
Authors: Utomo D. S. , Paoprasert N. , Yousuk R.
Published: May 2020

This study used Structural Equation Modeling to apply Theories of Planned Behavior to flood disaster donation by adding attitude factors to charitable organizations, advertising, and flood victims. The proposed framework is tested to investigate the relationship between factors in forming intentions and in influencing behavior. This finding found that subjective norms, attitudes toward advertising and attitudes towards charitable organizations contributed to the intention of donations, while the flood victims and perceived behavioral control did not have a significant effect on donation behavior.
Discrete Event Simulation Modelling for Classifying the Container Yard Availability Considering Dock Unloading Activity
Authors: Tama M I , Siswanto N , Suparno  , Aqsha BD
Published: May 2020

The development of systems and technology in the industry especially in the supply chain sector currently has a significant influence on the speed and accuracy along the supply chain. This is one of the reasons to build a container loading and unloading service company located in Surabaya. Terminal Teluk Lamong is the one and only Indonesian company that applies the green port concept with renewable loading and unloading equipment technology. One of the unique and prominent renewable concepts is the docking station, which aims to speed up unloading activities. Because the condition of container unloading activities is more common, this research focuses on container unloading activity only. Currently, the port has five yards available with 30 docking gates on the unloading side. The problem is the yard occupancy ratio (YOR) in unloading activity which has a low percentage value (27%). Even though the percentage value should be around 60%, therefore the value of yard utility didn’t optimal yet. A discrete-event simulation (DES) aims to help classify which yards are suitable for unloading activities and the rest for loading activities. The model verification is obtained “no error” and model validation is less than 5%. For all scenarios conclude that the best scenario is to use three-yard containers with six gates of docking for each yard.
Microstructural evolution of the AlMgMnZr alloy during severe plastic deformation
Authors: Borisova Yu , Yuzbekova D , Kalinenko A , Mogucheva A
Published: May 2020

The effect of severe plastic deformation (SPD) on microstructure of Al-5.4Mg-0.52Mn-0.1Zr alloy was studied. The methods of equal channel angular pressing (ECAP) and cold rolling were used to obtain fine-grained microstructure. The evolution of average misorientation angle and portion of HAB during SPD was determined. The lattice dislocation density was evaluated from EBSD data from the lattice curvature using the via Frank’s equation.
Electrochemical investigations of surfactants influence on copper ions cementation
Authors: Kolmachikhina E B , Ryzhkova E A , Starkova D V , Val’nev V A
Published: May 2020

The paper presents the results of experiments aimed to determine the effect of surfactants on the cementation rate and activation energy. The study was carried out on model solutions with the addition of surfactants. The results of the study showed that sodium lignosulfonate in a mixture with sodium dodecyl sulfate and sodium dodecylbenzene sulfonate increases the cementation rate over the entire range of studied concentrations. It is noted that the addition of individual surfactants leads to an increase in activation energy. Activation energy increases according to following order: sodium dodecylbenzene sulfonate → sodium dodecyl sulfate → sodium lignosulfonate.