bluuebunny/crossref_metadata_2025 huggingface dataset:
Identification of Lung Cancer Using Backpropagation Neural Network
Authors: Andayani U , Rahmat RF , Syahputra M F , Lubis Afriani , Siregar B
Published: December 2019

Lung cancer is the most common cause of cancer-related human deaths in both men and women. Doing chest radiography is one of the first steps was investigated for lung cancer identification. In this study, theChest X-Ray imageswould be used as an input in pre-processing and continuing the feature extraction to be used in neural network process as a method proposed to identify lung cancer using backpropagation algorithm. Pre-processing is a first step to do some process such as scaling and greyscaling, the segmentation was K-means clustering process, then do the feature extraction usingGrey-Level Co-occurrence Matrix (GLCM) and identification using Backpropagation done by this study to identify the lung cancer. This study showed that the proposed method was able to identify the presence of cancer with an accuracy of 75%, sensitivity 75% and specificity of 75%.
Design of Automatic Plant Areas Using Humidity Sensor Based On Internet of Thing
Authors: Gunawan G , Sari Marliana , Surbakti Benar , Ginting Agustina
Published: December 2019

Reservoir has many benefits for the community, one of them is as a means to irrigate land and paddy fields. Normally Open and close the valve on the reservoir is done manually and there are many reservoirs that have less solid wall of resistance. Thus causing the dam wall was destroyed. This tool aims to replace manual work becomes automatic and control the water level in the reservoir. The benefits of this tool is to be able to monitor the water level in the reservoir and make the process automatic irrigation. The sensors used in these tools is the HC-SR04 Ultrasonic sensors are used to measure the water level in the reservoir, Sensor soil humidity(YL-69) was used to detect the soil humidity in the paddy fields, RTC (Real Time Clock) is used to display the time, the servo motor is used for opening the water valve to the paddy fields and rivers, Module SIM 800L is used to transmit data the output of this tool to the mobile station devices. Arduino Uno is used to control the input and output. Water level control device based on SMS (Short Messaging Service) and Arduino Uno gateways have been tested and the result is a process of can be done automatically and information from these tools can also be viewed through the LCD mounted on the tool. 800L SIM module is used to transmit the data of the output of this tool to the mobile station devices. Arduino Uno is used to control the input and output 800L SIM module is used to transmit the data of the output of this tool to the mobile station devices. Arduino Uno is used to control the input and output. Water level control device based on SMS (Short Messaging Service) and Arduino Uno gateways have been tested and the result is a process of irrigation can be done automatically and information from these tools can also be viewed through the LCD mounted on the tool.
Machine Learning for Tubercolosis Classification Based on Treatment History
Authors: Darnila Eva , Ula Mutamminul , Mauliza  , Pahendra Iwan , Ermatita
Published: December 2019

TAn important step in data Tuberculosis analysis is data exploration and representation. Tuberculosis treatment is crucial to protect the patients and it can lead to death in untreated in countries with low income. In this case, we use the machine learning technique by using Support Vector Machine for classification the tuberculosis time series to analysis and represented based on the treatment history. We use Tuberculosis dataset which employed from Province Aceh, Indonesia. The result indicated the performance of the designed system was successful and could be used in Tuberculosis treatment analysis based on the histories in Aceh Utara and Lhokseumawe.
Decision Support System of Teacher Performance Assessment with Smart Method
Authors: Turnip Mardi , Pipin  , Aisyah Siti , Sembiring Anita Christine , Murniarti Erni
Published: December 2019

In general, the teacher assessment process in Indonesia is still carried out conventionally (this results in the length of time needed for decision making). The criteria used in these study are pedagogic, personality, social, professional. In this research, web-based decision support system application with SMART method will be built. Based on the research conducted, there were significant differences before and after using this application.
Implementation artificial neural network nguyen widrow algorithm for lupus prediction
Authors: Aisyah Siti , Harahap Mawaddah , Dharma Abdi , Turnip Mardi
Published: December 2019

Lupus is a type of skin disease known as 1000 face disease. This term arises due to this chronic disease causing symptoms and signs that are almost similar to other diseases. Artificial neural network is one method that can be used to help the medical world in managing clinical data. Nguyen Widrow is one of the algorithms and artifical neural network that can be used to make predictions and improve the iteration process. this study applying Nguyen Widrow algorithm in predicting lupus by Matlab. Based on the results of the training process, the Nguyen Widrow initialization algorithm is able to recognize patterns of 80% or range 16 of the 20 datasets. As for the results of testing Nguyen Widrow initialization algorithm with the initials activation function hidden = logsig, activating output logsig, target error 0.1 and learning rate 0.1, Epoch 10000 able to recognize 100% of patterns from 10 existing datasets. So from that it can be concluded that the Nguyen Widrow initialization algorithm can be used to predict disease patterns.
School Laboratory Management Information System
Authors: Riswanto  , Suseno Nyoto , Partono  , Harjati Purwiro , Dedy HA
Published: December 2019

School laboratories have an essential role in helping the development of students’ thinking processes. However, until now many school laboratories have not functioned well in supporting the learning process. One of the causes that there is no practical and efficient laboratory management system. Laboratory work now feels very complex which requires persistent. On the other, technology is developing very rapidly in the current era of the 4.0 industrial revolution, which is demonstrated by cyber technology. This cyber system provides an opportunity to develop a laboratory management system that is easier both in administration and management. Therefore the purpose of this study is the development of management systems for industrial revolutionary school laboratories 4.0. This development research method includes needs analysis (implemented), design, development, and implementation stages. Data analysis uses a qualitative approach through documentation, focus group discourse and questionnaire. The results of the research are online school laboratory management system products, which include online inventory systems, online laboratory documents, and online administration systems. The advantage of the online school laboratory management system is that inventory data of tools and materials can be accessed without limited time and space, virtually stored laboratory documents, and communication between laboratory administrators and users to be effective and efficient. The weakness is that the online school laboratory management system is necessary to input the initial data and the laboratory staff must have additional capabilities as an operator.
Smart Health Model With A Linear Integer Programming Approach
Authors: Pardede A M H , Mawengkang H , Zarlis M , Tulus T , Kadim L A N , Sihombing A , Ramadani S , Buaton R , Khair H
Published: December 2019

The concept of intelligent health is part of the realization of a smart city. Most hospitals experience shortages in the availability of resources, such as the lack of truly professional and qualified personnel in the health care field, limitations on hospital facilities and infrastructure. Capacity planning at the hospital is done by ensuring a balance between quality given to health care provided and the costs provided. The measuring instrument used in hospital capacity planning is to calculate the availability of resources at the hospital. In general, the capacity model is intended to calculate the amount of resources needed to be able to serve patients’ needs quickly. The problem that is the main description of providing optimal health services based on the concept of “smart health” is how to provide services as early as possible with limited use of health resources. The main assumptions of modeling are only one type of health service can be met by each patient at a time, the number of medical staff is sufficient to fulfill each request, and the type of disease experienced by patients can be handled by available medical staff. The model produced in this study is expected to minimize travel costs, service costs and other costs arising from inaccuracies in providing services to patients.
Application of linear congruent method in try out examination based on web application
Authors: Ramli  , Fitriana Liza , Hidayat Dody , Priyowidodo Stephanus
Published: December 2019

Passing the national examination is the main target for all students who are going to finish their high school. There are a lot of ways to get it, such as: taking course, get private learning, and do try out examination. Try out examination is a mechanism that is used as an exercise for students before carrying out the actual examination. But there are limitations of time, place, and money in having it. Not all students have a change to do it in a specified time or place, or have money to take it. In order to overcome these problems, we offer an application that could be used anytime and anyplace in low cost as long as they have internet connection with them. The application would be based on web and could be repeated whenever they want. Due it could be taken repeatedly, the questions should not be same every time they would do it. That’s why we propose linear congruent method as this method could produce random number. Practical advantages from these methods are: speed, ease of implementation, and availability of portable codes, parameters, and test results.
Implementation of Building Construction and Environment Control for Data Centre Based on ANSI/TIA-942 in Networking Content Company
Authors: Shahrani T. Maisha , Ramdhania Aliyya Nur , Lubis Muharman
Published: December 2019

The data centre room is different with other networking or IT type of room, which its space are necessarily required certain stringent requirements to achieve borderline of safety and stability in the prevention of interference or disturbance either physically or digitally. Therefore, it should also take note of the ease and access of the user to the data by considering the aspect of necessities and maintenance. Data center also transport energy upstream and greenhouse gas emissions due to processes, the resources and capital equipment used to extract and build, which should be considered carefully to avoid worst case scenario. This study explore the implementation issues in specific networking content company in Indonesia to manage building construction and environment control based on criteria derived from ANSI/TIA-942.
Responsive Innovation through Perceived Shared Values and Preferences of Customers
Authors: Lubis Muharman , Fauzi Rahmat , Sutoyo Edi , Abdulmana Sahidan
Published: December 2019

Responsive Innovation can be define as the attempt from the corporate or respected individual to bring the solution from particular problem by offer more ideal practical implementation based on specific requirement in the market. This type innovation can be generated or effectuate through modifying, combining, substituting or eliminating current process of problem solving or decision making in the market to be more precise, efficient and rigid compare to the previous. This study explore the possibilities to identify the characteristics of responsive innovation by developing web and mobile application based on the demand in the market with the several criteria namely number of exist application, higher demand, user experience attachment, attractive market and small routine margin of profit. Thus, this study present the application design called eLo and FunBuz to make it easier the process of order or reservation online.
CCTV Camera Controller Simulation Using Arduino Uno and Joystick
Authors: Khair Ummul , Lestari Yuyun Dwi , Perdana Adidtya , Budiman Arief
Published: December 2019

CCTV or Closed Circuit Television is a tool that can help improve the security system and minimize theft both in private homes and public places. But not all CCTVs are equipped with drive motors in all directions and can be used to monitor at an angle that is difficult to reach by CCTV. So that it can minimize the use of the number of CCTVs used to reach every difficult angle seen by CCTV. In this study a simulation tool was designed that combines CCTV with Arduino UNO circuits, Joysticks, Servo Motors, DC Motors, and Relays so that CCTV can move vertically and horizontally. With the development of this simulation system, it is hoped that it can more efficiently cost the cost of moving CCTV, with a webcam monitoring system and controlled movement through the joystick. And with this simulation can be an alternative to CCTV systems.
Extracting Glucose from Tapioca Flour Enzymatically Using Saccaromycess Cereviceae (YEAST)
Authors: Zuhria Faida , Abukasim Sudarto M.
Published: December 2019

Indonesia is located at the equator line with its tropical climate which allows many species of plants to grow lushly. One of these species of plants is cassava which can be found from the west to the east of Indonesia. Cassava can produce amylum which can be turned into glucose through hydrolysis process. This research aims at figuring out the comparison of reaction times, i.e.: 12, 24, 36, 48, and 60 hours, comparison of substrate concentration, i.e.: 20:120, 20:140, 20:160, 20:180, and 20:200 gr/ml and comparison of yeast content: 5%, 10%, 15%, 20%, and 25%. The hydrolysis is performed by mixing the cassava starch pulp at 20 grams and yeast at 11.6 grams. Later, it is fermented for variable times. After obtaining the optimal hydrolysis time, i.e. 12 hours, a hydrolysis is done at variable substrate concentrations for 12 hours and an optimum sugar level is obtained at 20:120 gr/ml ratio. It is then hydrolyzed for 12 hours at substrate concentration 20:120 gr/ml ratio, hence the optimum reduction sugar level is obtained when the yeast content is 10% of the tapioca flour pulp weight.
The Prospect of Nutmeg (Myristica Fragrans Houut) Organic Development (A Case Study in Ngidiho Village Distric of West Galela, North Halmahera Regency)
Authors: Muhammad Munawir , Neka Arianto M
Published: December 2019

This research aims to determine the prospects of organic nutmeg development and analyze internal and external factors of organic nutmeg development. Furthermore, it is analyzed by the formula of SWOT Analysis (Strengths, Weaknesses, Opportunities and Threats) to analyze the development prospect of organic nutmeg. From the research result of development prospect of organic nutmeg which developed research area in Ngidiho Village of West Galela District of North Halmahera Regency, it is seen from biophysical aspect seeming that climate condition is very supportive, from social aspect also seems the local society are very supported the development prospect of organic nutmeg and also economic aspect one of the determinants in improving the economy of local society which also increasing the production because those are supported by aspects of the availability of agricultural facilities and experience in organic nutmeg. The result of identification by SWOT analysis of internal factors there are five strengths and five weaknesses, while on the external environmental factors there are five opportunities and five threats. The integration of IFAS 2.74 and EFAS value is 2.80. In the SWOT diagram shows that the position of organic nutmeg development located in quadrant I or strategy that is made by using all the strength to make use the opportunity of aggressive strategy that is to encourage farmers to maximize the land as the development of organic nutmeg by improving the product quality, intensification of agriculture done by doing development like giving organic fertilizer to nutmeg plants, to increase production and meet market demand.
The Study of Quality Organoleptik and Microbiology Anchovies Dry in Toniku Village West Halmahera North Maluku Province, Indonesia
Authors: Talib Ahmad , Dunga Farid , Deni Sitkun
Published: December 2019

Organoleptik is testing on old passion for food and a willingness to use a product by test the senses or sensory test on either earnings a product. While test microbiology is one of the criteria for the quality of food and the safety of are often practiced to meet various criteria microbiology food an ingredient. The purpose of this study is to find value organoleptik quality and microbiology anchovies dry produced by the rural communities Halmahera Toniku district west. The methodology that was used consists of two phases, pt pgn promised to supply the sample collection also the preparation of the tools and materials. The second phase is testing stage organoleptik with the methods and microbiology is the hedonic with the total plates. The results of the study organoleptik shows that an attribute, the visibility of the of flavor of odor and the consistency of with a value of up range (7-8). While product quality testing microbiology alt on storage one month with a total value microbes belong to (2,6 × 104), storage it fell apart two months (4,3×104), storage three months (5,6×104), while the E. coli and Salmonella the results of his testing are negative with the (there is no bacteria).
Utilization of Strapping Band Waste for Reviewed Mortar Againsts Compressive and Split Tensile Strength
Authors: Zuraidah Safrin , Sujatmiko Bambang , Hastono Klotok Budi , Tiro Hibab , Hartono Tony
Published: December 2019

The aim of the study was to make mortar with a fiber mixture that utilizes band strapping waste. The selection of strapping band material as fiber since this material is not environmentally friendly, the benefits of this research can reduce band strapping waste and increase the economic value of band strapping waste. This research was conducted to determine the optimum fiber concentration value which resulted in the value of split tensile strength, compressive strength of maximum mortar, fiber strapping band with a length of 50 mm and width of 2.5 mm in the composition of 0%, 1.25%, 2.5%, 3.75%, 5%. The size of the specimen is 150 mm in diameter and 300 mm in height for the split tensile strength test and the object size is 100 mm in diameter and 200 mm in height for the compressive strength test. The number of specimens is 35 pieces, with each composition as many as 3 samples. For compressive strength test using 15 test specimens and split tensile strength test using 15 test specimens. From the test results, the optimum composition occurs in 5% fiber strapping band with a maximum increase in compressive strength of 29.67% (40.3 Mpa), split tensile strength of 60.94% (1.03 Mpa). For volume weight of 100 × 200 mm decreased by 7.58% (1.955 gr / cm3) while for weight volume 150 × 300 mm decreased by 3.62% (1.868 gr / cm3). Due to the increased split tensile strength, this mortar mixture is suitable for the manufacture of plastering or mortar on the surface of the wall especially the outer wall.
A Need Analysis of Innovation In Educational Technology to Increase The Quality of Website Learning In Industrial Revolution Era 4.0 Using Waterfall Method
Authors: Sari Pratiwi Kartika , Muhasidah  , Fitriani  , Kisno  , Priyatna Navi Muda , Fatonah Umi , Laswandi Hartini , Susilawati Eneng Sri , Fitria Evy , Sallu Sulfikar
Published: December 2019

Website is one of the offered courses in university to measure graduate competence in the era of utilization of the digital world. This study aims to analyze all of learners’ needs to achieve the desired outcomes. This current study only gives general information about the website. The participants of this study were Lecturers, undergraduate and postgraduate students, and educational practitioner throughout Indonesia using the online form. Data collection techniques used in this study were in depth interview as well as online survey and a need analysis using waterfall method. The result showed that it was necessary for the university to provide various supporting facilities to improve students’ competence. This study generated a complete learning innovation which qualifies the needs for students to reach the target output required by the policy makers..
Chess Game Software Design
Authors: Dikananda Arif Rinaldi , Daengs GS Achmad , Abdullah Dahlan , Erliana Cut Ita
Published: December 2019

Along with the development of information technology (IT) which is rapidly increase. There is development of technological and electronic tools that are able to create efficient time. In the Design of the Chess Game Software, users use computerization to find solutions to chess game by using the method (Alfha-Beta). Alfha-Beta method is one of the first discoveries in reducing the number of positions that must be searched so as to increase the depth level of the search that can be achieved in one game. The idea is in a large part of the tree we are not looking for values exact of a position, but only interested if it is better or worse than what we found before only the value of a position that fulfills the main conditions must be determined (the main provisions include the change between the player’s best move and the opponent’s best step from a root into a tree). And the Programming Language used in Chess Game Software Design is Visual Bbasic 6.
Designing Information Systems of Mobile Phone Catalog Product by Web-based
Authors: Setyawasih Rianti , Sudrajat Dadang , Prasaja Disma , Sapuguh Iman
Published: December 2019

Macromedia Dreamweaver 8.0 programming language is an application program that can edit HTML visually and manage websites and pages. This study aims to apply the PHP programming language with Macromedia Dreamweaver 8.0 to display mobile phone catalog information and increase the knowledge and capabilities of researchers regarding the website through internet media. The research method used is identification, formalization, implementation, and testing that aims to maximize the final results. The final result of designing information systems of mobile phone catalog product by Web-based is to apply the website to facilitate information retrieval and selling mobile phones online.
Designing Software to Introduce the Musical Instruments
Authors: Susanto Eko , Novitasari Yuni , Rahman Wahyudin , Amane Ade Putra Ode
Published: December 2019

Identify music equipment is an early stage in the process of learning music, both for theoretical and practical purposes. How the instructor introduces musical instruments is shows the instrument physically. But the way to introduce this is very limited to the tools that are available and relatively inexpensive, such as guitars, violins, and the like. Multimedia computers are now widely used to introduce a particular topic of discussion. One of them is a program that can introduce and teach various types of musical instruments. This software usually contains theory and information about a musical instrument and to test user knowledge, it can be tested through quizzes in this program where all the questions displayed are related to musical instruments. The implementation of this paper is a program that can display musical instruments, sounds, history, and information about this instrument. In addition, there is usually an interactivity like a quiz that can display quizzes about musical instruments by playing their voices and asking where these musical instruments originated.
Development of Multi-Sensor Smart Power Outlet to Optimize Building Electrical Automation System
Authors: Wagyana Agus , Zulhelman  , Rahmat
Published: December 2019

Power outlets are electrical devices that are very important in electrical systems. This paper discusses the development of a smart power outlet prototype designed to increase its capabilities. The prototype design is not only to provide electrical power but also to measure, display and transmit the value of electric current and power used. Another ability is to monitor the condition of the room, such as light intensity, temperature, and humidity. This capability enhancement can be used to optimize the building electrical automation system. This prototype is based on ESP32 System-on-a Chip microcontroller which is equipped with several sensors and supporting input and output components. The sensors used are the hall effect sensor to measure the value of electric current; light, temperature, and humidity sensor to measure the condition of the room. Values obtained from all sensors will be displayed on a small OLED display and sent using a WiFi network to a local web server. Furthermore, these values can be accessed and displayed in real time using an Android OS application on a cell phone. In addition to the monitoring function, the application can also perform a control function to turn on or off the power outlet wirelessly. This prototype has been designed, build, and tested to determine the validity of its function. The results show that in general, this prototype can function properly in accordance with the design specified.
Mapping of Flood-Prone Locations Impacted by Cilember River Overflow in Cimahi City Based on Geographic Information System
Authors: Karnisah I. , Astor Y. , Bambang B.S , Suchi P. A. , Rahmah S.S.
Published: December 2019

The high intensity of rainfall in Indonesia has a potential to cause catastrophic flooding in Cimahi City which is geographically located in the valley of basin and causes the overflow of water to the Cimahi City. There are nine flood points in Cimahi City and eight of them are located near Cilember River. This research creates a 2-dimensional map of flood-prone location impacted by Cilember Riveroverflow. The map is integrated by constructing a Geographic Information System (GIS) not only at flood point location, but also at point of the existing survey, point of the river crossing measurement, and river crossing point location at each STA with the information of location coordinates, flood depth, flood solutions, and images. Data processing begin with hydrological analysis that will be used for hydraulic analysis using HEC-RAS software and flood-prone map using ArcGIS software. The map is processed and become GIS that built in ArcGIS software. This research product is a flood-prone map impacted by Cilember River overflow in period of 2, 5, 10, 25, 50, and 100 years based on the GIS. The difference of flood distribution generated in each return period does not appear significantly, but it can be seen at the height of flood in every return period. The benefit of this research is to provide information on the vulnerability of flood area to Cimah iCity Government to solve flood problem that occur almost every year in Cimahi City.
Software Design for Depiction and Calculation of Curves Area on Cartesian Coordinates
Authors: Iskandar Akbar , Sumartono Eko , Segar Saink , Fitriani
Published: December 2019

The area which is limited by the curve can be calculated using certain integral function. The process of calculating integral functions is quitely complex and extensive because it is requires to control several rules of integration. In addition, the process of calculating a definite integral function for several equations such as a circle equation requires an example and substitution. This learning software performs various completion processes. This process begin with the process of reading and checking input data. The process is continued by describe the function of the input curve. The process is ended by calculate the area using the certain integral function. This learning software will display an image of the function curve which is inputted and the results of the calculation of the area using the certain integral function. The software also provides facilities for storing input and image data from curve functions in the *.bmp image format.
The Integration of Innovation in Education Technology to Improve The Quality of Website Learning in Industrial Revolution Era 4.0 Using Waterfall Method
Authors: Farikah  , Ukhriyawati Catur F. , Ningsih Tutuk , Susilowati Tuti , Agustiningrum Maria D.B. , Sumardiyono  , Firdaus Dendih F. , Iskandar Akbar , Sallu Sulfikar
Published: December 2019

The integration of educational technology is one of the necessary ways to improve the competence of qualified graduates. This study aims to create an integration of website learning model to improve the quality of students. The Current Study Provided does not indicate the incorporation of existing websites so that students are less aware of the benefits of this lesson. The Participants of this study were lecturers, undergraduate and postgraduate students and educational practitioners throughout Indonesia using online form. Methods Data collection used is direct interview and online survey and needs analysis using waterfall method. The results obtained show the merging of learning that will lead to the needs in the industry era 4.0. This study resulted in a complete innovative learning incorporation as required by Policy Makers.
Analysis of the Effectiveness of the Utilization of Power Monitoring Devices in Reducing Electric Energy Consumption
Authors: Mursid Sri Paryanto , Budi Santoso Hartono
Published: December 2019

Huge amount of energy consumptions in electrical households appliances are greatly influenced by the behaviors of people who live there. Unawareness in the use of the electrical appliances made a surge in electrical bills each month. To make savings, a technology to monitor the electrical energy consumptions is needed. This research focuses on analyzing the use of energy consumption control devices combined with wireless fidelity (WiFi) and mobile phones technology. These devices combine monitoring, reporting and control functions. Any electrical appliances that uses electrical energy from Electricity Company will be connected to this system for monitoring energy consumption. It is recorded and subsequently reported to the user for savings measurement. After the installment of these devices, the test results showed that the savings measurements have decrease the daily energy consumption by 15.88%. While the weekly consumption shows a decrease of 6.43%. Within three months of observation from there was a decrease in energy consumption by 33.77%.
Design of Double Cross Dipole Antenna as NOAA Satellite Signal Receiver for Monitor Cloud Conditions Application
Authors: Rafsyam Yenniwarti , Z. Indra , Khairas Eri Ester , Jonifan  , Karimah Wafi A
Published: December 2019

NOAA is a remote sensing satellite that contains informations about the earth, such as mapping land, sea and reporting weater conditions, cloud conditions and hotspots in an area. NOAA satellite works at the downlink frequency of 137-138 MHz. Double Cross Dipole antenna can be used as signal receiver antenna from NOAA satellite. Double cross dipole antenna is design to operate at frequency range of 137-138 MHz. simulation result of 137.62 MHz frequency generate return of loss as -20.726 dB, the value of VSWR 1.20 bandwidth of 82.32 Mhz, omnidirectional polarization and circular polarization. The result of measurement of double cross dipole antenna it was obtained return loss as-18.911 dB, value of VSWR of 1.255, bandwidth of 32.813 MHz. Double cross dipole antenna can be used to receive NOAA satellite signal in a form of voice. Voice data can be converted into image with the help of WXtoImgsoftware. The result of conversion was in a form of cloud condition in Indonesia area.
Influence of Spiral Tool Path Strategy Towards Incremental Backward Hole-flanging process using Curved Shoulder Forming Tool on Copper Sheet
Authors: Mashudi Imam , Agus Hardjito  , Pondi Udianto
Published: December 2019

Many studies have been done as hole flanges have important functional elements in many lightweight construction parts such as to provide sufficient fastening area, stiffness, bearing support, and allow for positioning, etc. Advancement of CAD/CAM software integrated to CNC machines technology has opened a new technology to enable pre-cut hole on sheet metal formed incrementally into required flange profile and height on its periphery known as incremental hole-flanging (IHF). Unlike conventional hole-flanging, the forming of the flange in the IHF process was using a simple tool pressed incrementally into a pre-cut hole with motion path performed by the NC programs on CNC machine. Hence, low volume production and rapid prototyping to reduce initial cost can be achieved to meet today’s production flexibility. There have not been many types of research to study the forming of flanges in incremental backward hole-flanging (IBHF) of closed or semi-closed profiles. By employing full factorial experimental design, this research focused on whether curved shoulder flange forming tool, process variables, and tool geometry of IBHF on copper plate through a spiral tool path strategy affect the produced flange height. The research yielded the results that the curved shoulder flange forming tool was successfully produced flange height through the spiral path strategy. From the data processing, it is shown that the variable of horizontally forming step, the forming rate, the forming tool rotation, and the tool shoulder radius significantly affects the flange height resulted from the IBHF process.
Performance Analysis Of Grid Tie Inverter With Power Limiter To Increase Utility Power Reduction In One Way kWh Meter Circuit
Authors: Prajogo Sapto , Santoso Budi Hartono
Published: December 2019

The use of grid tie inverter (GTI) in household electricity is intended to reduce the use of electricity from utilities. The configuration of GTI usually does not use batteries and the excess power from PV will be sent to the grid so that it will substitute utility electricity with electricity from GTI. However, this can occur when follow net metering program by installing a export-import kwh meters (two-way kwh meter) or follow feed in tariff program. If the kwh meter used does not support this capability or not following both program, the electric power of GTI will not substitute power from the utility. GTI with power limiter allows the inverter to work like a GTI in general but does not send excess power to the utility. The excess power from PV can be stored into the battery so that when the power shortage of PV will be substituted with power stored in the battery is not from the utility. In this research, conducted a study of the performance of the GTI with a power limiter and compared it with the GTI without a power limiter that works on an electricity network. The results of the study show that the use of GTI with a power limiter can increase the reduction in power usage from utilities by up to 40%.
Quality of Chicken Meat Which is Given Treatment of Electric Stimulation
Authors: Nuraini  , Armila Iva , Hafid Harapin , Ananda Siti Hadrayanti
Published: December 2019

This study aims to investigate the extent to which electrical stimulation affects the quality of native chicken meat. The study was designed using a complete randomized design with four treatments consisting of 20 Volts / 0 minutes (as controls), 20 Volts / 2 minutes, 20 Volts / 3 minutes and 20 Volts / 4 minutes. The parameters observed were shrinkage cooking shrinkage, meat pH, flavor, color, texture and tenderness. The results showed that physically stimulating electricity for two minutes significantly affected the lowest cooking shrinkage compared to the duration of stimulation compared to other stimulations. Electrical stimulation does not affect the pH of meat. The treatment of electrical stimulation significantly affected the organoleptic properties of chicken meat, where the flavor of the meat was favored by the panelists at three minutes of stimulation, as well as the aroma, texture and very apparent tenderness. Color parameters are not affected by electrical stimulation. It was concluded that the two to four minute electrical stimulation treatment with 20 Volt strength had a very significant effect (p <0.01) on cooking losses, tenderness and significantly affected (p <0.05) on taste, aroma and texture of native chicken meat.
The Cost Estimation Using “Cost Significant Model” on The Structure of Beam Girderdi Development of DPU Bina Marga Bridge Province In East Java
Authors: Wulandari Esti , Witjaksana Budi , Oetomo Wateno , Pramoedjo Hadi
Published: December 2019

Cost estimation is one of the construction processes to know the amount of cost for the completion of a project. The cost model on the project should be simple, easy, accurate and the results are accountable. This study is intended to find out the work affecting the total cost of bridge construction, model and cost model. Cost method realization model with the cost model used in DPU BinaMarga East Java Province.

This research chose a location in East Java area with research object of Bridge Girder Construction at DPU BinaMarga East Java Province. The data of the research was collected by using a census of development work packages in the same province of East Java whose funds sourced from APBD, from 2011 to 2014. The research data consisted of nearly equal 6 (six) job project data. Data analysis technique used in this research is using descriptive statistical analysis and inferential analysis.

Based on the calculation, there is a procurement of top and installation buildings, stone and masonry work, pavement and asphalt work, reinforcement work, foundation work, and concrete work significantly to the cost of building girder bridge, 84.72% additional cost, otherwise 15.28 % Caused by other causes, Model cost of development of the Bridge with the Model Significant Cost is: Y = 22.971.133,97 + 1,513 X7 + 1,161 X9 + 2,108 X3. A curation of significant models ranged from -10.20 % to + 6.75 %. Estimates with the Significant Cost Model resulted in better results when compared to parameters using long road parameters that have been used in DPU BinaMarga East Java Province with an accuracy ranging from -38.68 % to + 38.05 %.
Detection of Sigatoka Disease in Plantain Using IoT and Machine Learning Techniques
Authors: Sweetwilliams F. O. , Matthews V. O. , Adetiba E. , Babalola D. T. , Akande V.
Published: December 2019

Achieving United Nations Sustainable Development Goal 2 (UN SDG2) infers an imperative to urgently increase food production by up to 70%. However, concerns have risen that increases in food production have not kept pace with increase in world population, which is estimated to reach 10 billion people by the year 2050. In this paper, an IoT with machine learning based system was developed to acquire and process significant indicators such as temperature, moisture, humidity and leave images for the detection of Sigatoka disease in plantain. Appropriate sensors for detecting the stated disease indicators were interfaced with Raspberry Pi3 microcontroller module to collate and transmit the sensor data wirelessly to ThingSpeak, which is the selected cloud based IoT platform. The acquired leave images were further processed using two image descriptors, namely: Scalable Color Descriptor (SCD) and Histogram of Oriented Gradient (HOG) to extract discriminative color and texture features respectively. The features were then classified to detect the diseased or non-diseased class using Multilayer PerceptronArtificial Neural Network (MLP-ANN). The best accuracy of 98% was produced using the HOG descriptor.
Physico-Mechanical Characterisation of Fuel Briquettes made from Blends of Corncob and Rice Husk
Authors: Ajimotokan H. A. , Ibitoye S. E. , Odusote J. K. , Adesoye O. A. , Omoniyi P. O.
Published: December 2019

Densification of agricultural residues such as husks, shells and cobs into fuel briquettes is an alternative renewable feedstock for producing solid fuels because it improves their physico-mechanical, storage and combustion properties. This paper presents the physico-mechanical characterisation of fuel briquettes made from blends of corncob and rice husk. The raw samples of corncob and rice husk were collected, sorted and pulverised. The pulverised samples were screened to 0.25, 1.0 and 1.75 mm particle sizes, blended at mixing ratios of 80:20, 70:30, 60:40, and 50:50, and afterwards, briquette samples were produced at 25, 50, and 65 kPa compaction pressures respectively with starch as the binder. The variations in the particle size, mixing ratio and compaction pressure have significantly influenced the investigated physico-mechanical properties of the produced briquettes. The briquette made from 80:20 mixing ratio of corncob to rice husk, 0.25 mm particle size and 65 kPa compaction pressure had the highest compressive strength of 111 kN/m2 and the least compressive strength of 39 kN/m2 from briquette with 50:50 ratio of corncob to rice husk, 1.75 mm particle size and 25 kPa compaction pressure. The briquette made from 50:50 mixing ratio of corncob to rice husk, 0.25 mm particle size and 65 kPa compaction pressure spent the longest time to collapse when immersed in water; taking up to 972 seconds and the least time of 480 seconds from briquette with 80:20 mixing ratio corncob to rice husk, 1.75 mm particle size and 25 kPa compaction pressure.
Comprehending the energy consumption pattern of occupancy of an academic structure
Authors: Oyedepo S O , Dirisu J O , Efemwenkiekie U K , Fayomi O S I , Essien E E
Published: December 2019

The energy consumption in the Covenant University campus community has been investigated. A tour round the structure was undertaken to ascertain the consumption culture and to identify lapses on energy usage. An energy consumption pattern roadmap is necessary in accounting on how energy is used up and decision on utilizing redundant energy. This is the focus of the research work to provide an insight to the rate of energy utility. The electrical energy demands are going to get increased in future. Measures are to be taken to minimize use of electricity everywhere so as to reduce undesirable financial load. It is advisable to carry out energy assessment in the campus from time to time, to achieve more effective and proficient use of energy.
Powering Africa Using An Off-Grid, Stand-Alone, Solar Photovoltaic Model
Authors: Ukoba Kingsley , Fadare Olugbenga , Jen Tien-Chien
Published: December 2019

Over 90 % of Sub-Saharan Africa is without electricity access. The rural areas of the few African countries with access lack electricity. Studies have suggested that solar energy systems hold the key to powering the continent. Although, a vast population currently operate fossil-fuel powered generators to meet their basic electricity needs. The study is designed for a 2-bedroom flat inhabited by an average Africa family. A residential building in Akure, Ondo State, Southern Nigeria has this model installed in a stable and reliable condition. The proposed solar photovoltaic model is composed of solar panels, Direct Current (D.C) cables, charge controller, solar batteries, solar inverter, solar bulbs and instrumentation gadgets. The model is an optimum size solar Photovoltaic installation with a maximum power input of 1, 800 W. The maximum allowable load is 1, 000 W and a maximum charging D.C voltage of 28.2 V. The solar-powered system is equipped with a set of six (6) 300 Watts monocrystalline solar panels. A commercial maximum power point tracking (MPPT) charge controller was used for this model. Two (2) units of Deep Cycle AGM Solar Batteries connected in series are installed for the solar photovoltaic system. A pure sine wave solar inverter was used in the developed solar PV model to transform D.C electricity available in the batteries to A.C electricity. Themodel is a flexible one which could be scaled up as may be desired or required. The solar photovoltaic model has a very high prospect for powering Africa. The model has ample potentials to fulfil economic, social and environmental objectives which qualifies it as a sustainable energy option to improve the quality of life. The implementation of this form of sustainable energy will open even development of the continent and end the electricity woes of the populace.
Brief review on the physics of solid-state lighting device
Authors: Emetere M.E , Abodunrin J.T , Fayomi O.O , Iroham C.O
Published: December 2019

In this review, the chronological advances of solid state lighting (SSL) alongside the theoretical predictions was examined. The discussion includes its crystallographic orientations, substrate growth, colour rendering, misfit dislocations, quantum well fabrication, stacking fault and energy efficiency. It has been discovered that the challenges confronting the potential of SSL devices may not just be ambient temperature of the operating environment or the safe limits of the blue/white-light hazard. This paper sheds more light on the physics responsible for the SSL white lighting, wave function lapping at different crystallographic orientations and stress relaxation limits of quantum well (QW) heterointerfaces.
Effect of Aluminium Addition and Grain Refinement on the Microstructure, Mechanical and Physical Properties of Leaded Brass Alloys
Authors: Egole C.P. , Nzebuka G.C.
Published: December 2019

Because Cu-Zn alloys have excellent combination of both physical and mechanical properties such as high thermal and electrical conductivities, good tribological behaviour, relative stability in corrosive environments and high mechanical strength, their study is very important for industrial and academic purposes. Review of previous experiments of leaded brasses focused on the effect of small addition of Al on microstructure and mechanical properties and did not evaluate physical behaviour of the alloy. In the current work, the influence of heavy aluminium addition and grain refinement for leaded brasses was investigated and the analysis is extended to physical properties evaluation. The results obtained show that mechanical properties are directly dependent on the microstructure which is in agreement with previous experiments. Initial addition of Al to the alloys does not result to heavy increase in hardness, but further increase in Al and addition of inoculants lead to significant change in hardness. The same pattern of modification was observed in both compressive strength and ultimate tensile strength. For the physical properties, there is little discrepancy to the sequence of their modification, most especially after grain refinement. There is a steady decrease in electrical conductivity even after grain refinement. This is not the case for thermal properties. The thermal conductivity reduced and then increased tremendously after Ti addition. The microstructure was modified with the addition of Al and Ti grain refiners. The presence of Al promoted formation of β-phase seen in the dark regions of the microstructure while Ti aided equiaxed grain formation.