LOOP ALGORITHMS FOR DUCTILITY ANALYSIS OF COLUMN REINFORCED STEEL WITH YIELD STRENGTH ABOVE 500 MPA

There are many benefits to the use of high-strength reinforcement (above 500 MPa) in reinforced concrete buildings. The advantages of using high-strength reinforcement are reduction steel volume and dimension, reduced construction time, reduction in reinforcement congestion, as well as savings in materials and worker cost. Meanwhile, the investigation of ductility of reinforced concrete element with high-strength reinforcement to resist earthquake effects under current design procedure is needed. In the current standard, ACI 318-71, The maximum specified yield strength was restricted to 60 Ksi (413 MPa) for reinforcement in special seismic system. There were also no ASTM standard specifications for reinforcement with yield strength above 500 MPa. In the design of seismicresisting structures, the analysis of curavture ductility and flexural overstrength factor is of important consideration in order to avoid brittle failure. This paper attempts to anaylze the ductility and re-evaluate the flexural overstrength factor of reinforced concrete column. The tensile tests of steel reinforcement with yield strength above 500 MPa generates stress-strain curve. An idealisations for the monotonic stress-strain curve proposed by mander wasadopted in this study. Whereas in this numerical study of confined concrete columns, the behavior of concrete cored is modeled by the stress-strain relationship of confined concrete proposed by Kappos-Konstantinidis. This stress strain model was used for the momen, curvature, ductility, and flexural overstrength factor analysis.

WHEELED ROBOT WITH ARDUBLOCK PROGRAMMING FOR ELEMENTARY SCHOOL STUDENTS

Robotics technology can be implemented into the elementary school curriculum with the presence of extracurricular robotics or better as robotics only. Robotics in students is taught to assemble and program simple robots packaged in robotics learning media. Robotics activities basically use wheelled robots but have different functions. With the basic assumption of the robot, we can reduce the cost of procurement by making a robot with one wheel but with various functions. The wheeled robot is portable, so it is easy to disassemble. Robotics activities in generaly uses an Arduino controller with the C programming language. Elementary school students have difficulty understanding the language. Ardublock as one of the easy and open-source solutions. This research focused on the working system of a wheeled robot with various features (line tracer, transporter, and wall tracking) as well as the success in using ardublock logic as the programming language of the robot. The results test show that the ardublock program can be used to program the Arduino controller on the robot. The wheeled robot with the line follower feature recorded a travel time of 6.0 seconds on a 200cm trajectory. The wheeled robot with a transporter feature on a 200 cm trajectory takes an average of 8.9 seconds with the success of lifting objects 7 times out of 10 attempts.

SMART SCHOOL MANAGEMENT SYSTEM OF PRESENCE MONITORING TEACHER AS A REALTIME WITH RAD (RAPID APPLICATION DEVELOPMENT) METHOD AT KHADIJAH HIGH SCHOOL SURABAYA

This research create an application for monitoring the presence of teachers when carrying out teaching activities in real time at Khadijah High School Surabaya. The method that will be used in making this application is to use the RAD (Rapid Application Development) method. The RAD method is an application development process based on prototyping, iteration, and repeated feedback. That way the applications that are made can be developed and repaired quickly and are in accordance with the needs and developments of the super-fast digital world. Theprocess of testing this application is carried out by simulating the teaching and learning process carried out by the teacher and monitored directly by the principal in real time. Smart school management system application as a realtime monitoring of teacher attendance using the RAD (Rapid Application Development) method at SMA Khadijah Surabaya. The results of this study are very useful for school principals to monitor teachers in teaching and learning activities at Khadijah High School Surabaya and also make it easier for teachers to make attendance at teaching and learning activities every time.

DECISION SUPPORT SYSTEM SELECTION OF THE BEST CITILINK AGENT CALL CENTER USING THE FUZZY AHP METHOD (Analytical Hierarchy Process)

For the selection of employees, there are usually many factors in fulfilling the assessment in order to get a maximum target. Especially in the field of call centers, it is required to have qualified skills which can solve problems complained of by customers. So that as a call center who receives incoming calls or can be called inbound calls, it must be the key to solving problems and be able to convey good suggestions. However, to get the value of the agent so that its performance is good, there are parameters that must be achieved, namely acd call, acd time, aux time, available time, staffed time and agent skill. best. By doing this, the monitoring system is very easy and more efficient to find out which agents are underperforming or agents who have reached the performance target. For this reason, an application with a case study was created in order to achieve the maximum target. This application will greatly help the team, namely Teamleader, Taber, Spv, Manager as they play an important role in evaluating agents in their performance.

ANALYSIS AND DEVELOPMENT OF LABORATORY INFORMATION SYSTEMS (CASE STUDY : INFORMATICS ENGINEERING LABORATORY, BHAYANGKARA UNIVERSITY, SURABAYA)

At first information systems do not have to be associated with information technology, but with the development of the times,nowadays an information system can not exist without the use of information technology. A system is needed to facilitate the affairs of an organization. The effecctiverss of the system will affect the success of the organization under it. The development of Web-based Information Systems is an effort to develop the implementation of practice and in order to improve the quality of services to students that are effective, efficient and transparent, and directed to achieve the establishment of information networks and service transactions to qualified students without restrictions on partition and space. The end goal is the development of Laboratory Information System is expected to accommodate the concept, the essence and the nature of service to students with excellenees. The results of the test based on questionnaire data. Presentase conformity system reach 92%, where the system runs in accordance with the wishes of responden. While the system discrepancies reach 8%.

MAPPING AND PREDICTION OF COMMUNITY HEALTH LEVEL IN THE EAST JAVA REGION USING ANN BACKPROPAGATION METHOD

Predicting the level of public health in an area is very important to know the development of public health in order to give consideration to local governments in making policies that can increase the level of health and health services for the community. So we need a system that is able to make predictions and describe the development of public health in the years to come. The data used in the study were the percentage of the population who had health complaints and outpatient treatment for a month, the percentage of households that had access to proper sanitation, the percentage of households that had access to decent drinking water sources, the percentage of poor people, the average length of schooling, infant mortality rate, number of health centers and life expectancy. Backpropagation neural network method is a method that is often used in forecasting or prediction. Where this method can identify activities based on past data. Past data will be studied by neural networks so that they have the ability to make decisions on data that has never been studied. This method is expected to provide a prediction of the level of health by studying data from previous years. The results of this study produced a predictive map of the level of public health in the East Java region in 2019, 2020 and 2021 based on the model obtained from the training results with an epoch of 100 and an MSE value of 0.0173254.

CLASSIFICATION OF THE NUTRITION STATUS TODDLER USING THE SVM METHOD (CASE STUDY: BANJARAGUNG VILLAGE, BARENG, JOMBANG)

Improving the health status of children under five is very necessary in determining the next generation of the Indonesian nation. One of the efforts that can be realized is to maintain the nutrition of children under five in the community. Balanced nutrition can increase immunity and increase intelligence so as to make normal growth. In social life, nutritional status is obtained through anthropometric measurements at a posyandu where people generally use the BB/U index or body weight compared to age to determine the nutritional status of toddlers. This study aims to make it easier to identify the nutritional status of toddlers using Data Mining with Support Vector Machine (SVM). system built with PHP programming language and postgreSQL database. This study uses data on 314 toddlers in 4 groups of posyandu in the village. The data was tested 2 times, the first with a 50:50 comparison and the second 70:30 for training data and testing data. The results showed an accuracy of 96% and 98%, in other words, SVM was categorized as good for testing the nutritional status of children under five.