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Conference SENATIK STT Adisutjipto Yogyakarta
Published by P3M STTA
SENATIK merupakan jurnal proceeding seminar nasional teknologi informasi dan kedirgantaraan yang dikelola Pusat Penelitian,dan Pengabdian kepada Masyarakat (P3M) Sekolah Tinggi Teknologi Adisutjipto Yogyakarta. Jurnal ini diterbitkan dalam jangka waktu setahun sekali, dalam bentuk off line/ buku cetak (2337-3881) dan on line (2528-1666), digunakan untuk publikasi karya ilmiah, peneltian, tesis dan desertasi dari dosen dan calon dosen. Sebagai institusi yang memiliki ciri khas kedirgantaraan, maka setiap penerbitan dari jurnal ini akan disertai dengan seminar nasional yang temanya dalam lingkup teknologi informasi dan kedirgantaraan.
Articles
134
Articles
Study on the Effect of Post Weld Heat Treatment (PWHT) Time on the Tensile Strength and Hardness of TIG Weld Joint of Motorcycle Crankcase

Nugroho, Fajar

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Postweld heat treatment (PWHT) is a common practice among building codes to reduce the residual stress, improve the ductility, and decrease the defects. This article describes the welding joint property of motorcycle crankcase material by taking tungsten inert gas (TIG) welding measures before PWHT on 200°C with holding time of 0,4,6, 8 hours. Test data were analyzed in relation to tensile strength, hardness and microstructure on the welding joint. The regions corresponding to the base metal (BM) and heat-affected zone (HAZ) were studied. The effect of holding time under PWHT on properties of joints can be investigated. The results demonstrated that micro-hardness in the weld and tensile strength decreased with PWHT time prolonging, while tensile strength increased with the extension of PWHT time. The microstructure before PWHT was coarse in the joint. With the extension of holding time under PWHT, the structure obtains fine grain and the characteristic becomes obvious.

The Blueprint of AWOS Implementation for Aviation Services at BMKG

Wardani, Duati, Sulistyo, Selo, Mustika, I Wayan

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Weather is very critical for aviation. Especially regarding safety in air transportation. Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) in its duties and functions provides aviation weather information, conducts the latest weather observation activities for the needs of takeoff and landing at airports. The World Meteorological Organization (WMO) has targeted automation with a target achievement in 2017. But currently in conducting the latest weather observations, BMKG still uses conventional weather observation systems even though at some airports Automated Weather Observing Systems (AWOS) have been installed. The automated weather observing system is still not fully implemented yet. This study aims to create a blueprint for the implementation of automatic weather observations for aviation services within the BMKG. Guidelines for making blueprint use the Enterprise Architecture Planning (EAP) framework. EAP defines business and architectural needs related to data, applications, and technology needed to implement automation. The final results achieved are in the form of a blueprint for the implementation of automated weather observing system for aviation services within the BMKG which can be a guide for BMKG in achieving the vision related to aviation weather services.

The Assessment of Internal Control System in Management of Information Technology Based on COSO IC

Fadlan, Muhammad, Winarno, Wing Wahyu, Haryono, Kholid, -, Muhammad

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

 The large number of institutions that use information technology (IT) to help run their usiness processes cannot be separated from various risks to IT. The internal control system is one way that can be used to deal with and even minimize the impact of various risks and COSO Internal Control is one of the frameworks that can be used. The "XYZ" College is one of the educational institutions that have used IT, especially to assist every activity related to students. At present, there are no assessments related to the internal control system in the utilization and management of IT contained in the institution, so it is not known whether the control system is running well or not. For this reason, this study was conducted with the aim of assessing whether the internal control system is currently in accordance with the principles of good internal control based on the COSO Internal Control Framework. The results showed that indirectly the "XYZ" College had applied several principles contained in the COSO Internal Control, even being quite good with a value of 3.28 from a scale of 5.0.

The Effect of Duration of the Rivet Process on the Strength of Single Lap Joining

Priyahapsara, Istyawan

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Good airplane joining supports aircraft strength. The general joining process is using rivet as joining method. The parameter that affects the strength during the riveting process is the duration of the rivet head formation. The purpose was to determine the effect of the duration of rivet head formation on the quality of the joint. The research was carried out with the help of homemade tools, to ensure data consistency. The selected riveting duration is 3, 4, 5, 6 seconds. After connection, each connection was tested for strength through tensile testing and macro photo images from the joining. Results show that the 5-second duration provides the best connection with the tensile test results of 165 MPa. Based on the macro photo image, the 5 second rivet process produces the best connection because it produces the biggest rivet body so that it provides the greatest strength compared to the others.

Design of Batik Crafts Industrial Performance Measurement Model in Wukirsari Region Bantul

Zabidi, Yasrin

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

One important factor in influencing the progress and decline of an industry is the performance factor. Performance issues are not only important for middle-to-upper-level companies and large companies, but also important for small and medium industries such as the batik craft industry in the Wukirsari region, Bantul. Given the importance of performance, researchers tried to design a performance measurement model of the batik craft industry in the Wukirsari region, Bantul with the aim of identifying performance criteria, determining performance indicators, formulating performance indicators, and making performance measurement instruments. The steps in this study are divided into four phases, namely the initial research phase and problem formulation, the design phase, the analysis phase and the conclusion phase. The initial research phase and problem formulation include, the profile of the batik craft industry in the Wukirsari region, Bantul, the current performance evaluation system, problem formulation and research objectives. The design phase includes the design process of the performance measurement model with the Balanced Scorecard method which includes setting strategic objectives, establishing performance indicators (key performance indicators), determining performance indicator formulas, making performance measurement instruments. Analysis phase includes KPI analysis and strategy map analysis. Conclusion phase includes conclusions from the results of research and suggestions for the batik craft industry in Wukirsari, Bantul. From the results of the study obtained four performance perspectives based on the balanced scorecard, namely financial, customer, internal business processes, learning and growth. five, namely: increased sales growth, high customer satisfaction, improved system and better work processes, the creation of a good work climate, and increased employee productivity.There are seven performance indicators formed, namely: the rate of sales growth, the level of customer satisfaction, level of compliance with customer complaints, percentage of defective products, number of new products, level of job satisfaction, and employee productivity. The establishment of a performance measurement worksheet, so that the performance values of each performance indicator and total performance can be known in a certain period.Keywords: Performance, Measurement, Batik

Monitoring system of student performance using data warehouse (Case study: INSTITUT TEKNOLOGI SUMATERA)

Ramdani, Ahmad Luky, Hanifah, Raidah, Pilopa, Okta

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Improving the quality of learning is one of the things that must be achieved in the college academic process. To achieve this, monitoring and evaluation of the results of the learning process is needed, namely by looking at student performance. Based on this, the research aims to develop a university data warehouse with student performance objects that will be used by the board application for the monitoring process. The application was successfully developed with several main features, namely: a) displaying the number of students based on year, region and the entrance to college, b) displaying a comparison of the number of students in each academic year based on student status , d) display student performance every academic year and e) KPI values based on needs analysis. These features have been tested using the blackbox approach and the test results show that the features work properly and produce outputs in corresponding to the test scenario.

Identification of the Use and Utilization of Information Technology for the Residents of Tegalrejo Berbah Sleman Yogyakarta

Nugraheny, Dwi

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

The usage Information Technology of smartphones is increasingly prevalent in various parts of the world, especially the Indonesian people themselves are competing to buy the latest type of smartphone because of user dissatisfaction with the smartphone features offered. This can be seen through users of various ages, ranging from children, teenagers to adults. Likewise for the residents of the Tegalrejo area, the use of information and communication technology has become popular in the community. The purpose of this study was to identify the results of data processing using and utilizing information technology via smartphone by the people of Berbah Sleman Tegalrejo using the quicksort method. Identification results to find out the use and utilization of information technology through smartphones with features that have been used effectively and efficiently by the residents of Tegalrejo Berbah Sleman so as to make a digital literacy community.

Project Optimization of WEB-Based 3d Animation Bus Route Trans Jogja Using CPM

Retnowati, Nurcahyani Dewi

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

The making of informative media in the form of three-dimensional animation on Trans Jogja bus routes really requires good project planning so that the process becomes more effective and efficient. In planning a project, it is necessary to consider the time, cost and scope of a project. Project optimization is done by using the Critical Path Method (CPM) method, which is a technique of analyzing network activity activities or project activities that predict total duration. Project optimization planning through the stages starting from the creation of the Work Breakdown Structure, barchart diagrams with Gantt Chart software, critical path calculations, and the final stages with CPM to determine the fastest time possible for the project to be completed. The results of the WBS are obtained by predecessor of each activity and its duration, the calculation of the critical path is 29 days with path a-b-c-d-e-f-g-h-I-j-l-m-n-o, and from the CPM calculation the total float is 0 so the project can be completed on time

Improvement of Electrical Power System Dynamic Stability Using Fuzzy Logic

Setiawan, Paulus

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

This research has an aim to know the effectiveness of fuzzy logic which takes over the controlling of Proportional Integral Derivative (PID) in repairing the dynamic stability of electrical power system. This research begins with making the mathematic model of electrical power system into a circumstances variable equation and the plant system diagram block model. The structure of fuzzy logic controller system is designed by using 2-input which has three, five, and seven membership functions. The formed system work test is conducted by giving a disruption of increase and decrease electric power, to perceive the result of dynamic order on system variable to rotor speed deviation, angle rotor, voltage terminal, and power electric. Fuzzy logic can increase PIDPSS performance in repairing the electrical power system dynamic stability. The overshoot value decrease to 73.881% - 89.069% and settling time is 57.81% - 67.01% to the rotor speed deviation.

His Color Space Transformation for Detection of "Pisang Mas" Maturity Based on the Skin Color

Sianturi, Jan William, Wicaksono, Bagas Aji, Nugraheni, Anindia Adyutawati, Bintoro, Robertus, Wulandari, Agnes Widianingsih, Priambodo, Kristophorus Abel

SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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Abstract

Banana is one of the favorite foods in Indonesia, one type of banana that is quite popular is Pisang Mas. Sometimes consumers have difficulty expressing the maturity of bananas at this time. Image processing can be one way to overcome this problem. In this study we will process documented banana images using a method used to change HIS space to extract the characteristics of banana skin color. The characteristic that is taken is the center of the image of a banana that is experienced as much as 15x15 pixels. Images of bananas are 20 pictures for ripe bananas and 20 pictures of raw bananas. The level of success in this study resulted in a value of 100%.