International Journal of Applied Sciences and Smart Technologies
International Journal of Applied Sciences and Smart Technologies (IJASST) is published by Faculty of Science and Technology, Sanata Dharma University Yogyakarta-Central Java-Indonesia. IJASST is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in engineering, science, technology, and basic sciences which relate to technology including applied mathematics, physics, and chemistry. IJASST accepts submission from all over the world, especially from Indonesia.
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<![CDATA[Effects of Shock Wave Phenomenon on Different Convergent Lengths in the Mixing Chamber of the Steam Ejector ]]>
<![CDATA[Stefan Mardikus]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3249
<![CDATA[The shock wave phenomenon is a phenomenon in a steam ejector that caused when the working fluid has high pressure, and suddenly it turns into low pressure and high speed. The shock wave effect will be investigated to the different convergent length in the mixing chamber to find the highest entrainment ratio as the performance of steam ejector. Operating pressure in the primary flow was in the range 0.68 MPa - 1.39 MPa, and the secondary flow was set 0.38 MPa to 0.65 MPa. The result of this study demonstrated that the highest entrainment ratio occurred in the convergent length of 69 mm.]]>
<![CDATA[Artificial Generation of Realistic Voices ]]>
<![CDATA[Dhruva Mahajan]]>;
<![CDATA[Ashish Gapat]]>;
<![CDATA[Lalita Moharkar]]>;
<![CDATA[Prathamesh Sawant]]>;
<![CDATA[Kapil Dongardive]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.2744
<![CDATA[In this paper, we propose an end-to-end text-to-speech system deployment wherein a user feeds input text data which gets synthesized, variated, and altered into artificial voice at the output end. To create a text-to-speech model, that is, a model capable of generating speech with the help of trained datasets. It follows a process which organizes the entire function to present the output sequence in three parts. These three parts are Speaker Encoder, Synthesizer, and Vocoder. Subsequently, using datasets, the model accomplishes generation of voice with prior training and maintains the naturalness of speech throughout. For naturalness of speech we implement a zero-shot adaption technique. The primary capability of the model is to provide the ability of regeneration of voice, which has a variety of applications in the advancement of the domain of speech synthesis. With the help of speaker encoder, our model synthesizes user generated voice if the user wants the output trained on his/her voice which is feeded through the mic, present in GUI. Regeneration capabilities lie within the domain Voice Regeneration which generates similar voice waveforms for any text.]]>
<![CDATA[Identity Graph of Finite Cyclic Groups ]]>
<![CDATA[Maria Vianney Any Herawati]]>;
<![CDATA[Priscila Septinina Henryanti]]>;
<![CDATA[Ricky Aditya]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3256
<![CDATA[This paper discusses how to express a finite group as a graph, specifically about the identity graph of a cyclic group. The term chosen for the graph is an identity graph, because it is the identity element of the group that holds the key in forming the identity graph. Through the identity graph, it can be seen which elements are inverse of themselves and other properties of the group. We will look for the characteristics of identity graph of the finite cyclic group, for both cases of odd and even order.]]>
<![CDATA[Human Detection in Video Surveillance ]]>
<![CDATA[Sushama Khanvilkar]]>;
<![CDATA[Santosh Gupta]]>;
<![CDATA[Hinal Rane]]>;
<![CDATA[Calvin Galbaw]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.2747
<![CDATA[Recognition of the human activities in videos has gathered numerous demands in various applications of computer vision like Ambient Assisted Living, intelligent surveillance, Human-Computer interaction.One of the most pioneering techniques for Human Detection in Video Surveillance based on deep learning and this project mainly focuses on various approaches based on that. This paper provides an idea of solution to use video surveillance more effectively, by detecting any humans present and notifying the concerned people. The deep learning model, preferred for fast computation, Convolution Neural Network is used by stacking 3 blocks of layers on fully connected layers. This provided an identification of humans and naïve approach to eliminate inanimate humanlike objects such as mannequins.]]>
<![CDATA[Obtaining the Efficiency and Effectiveness of Fin in Unsteady State Conditions Using Explicit Finite Difference Method ]]>
<![CDATA[Petrus Kanisius Purwadi]]>;
<![CDATA[Budi Setyahandana]]>;
<![CDATA[R.B.P. Harsilo]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3280
<![CDATA[This paper discusses the search for fin efficiency and effectiveness in unsteady state conditions using numerical computation methods. The straight fin under review has a cross-sectional area that changes with the position x. The cross section of the fin is rectangular. The fins are composed of two different metal materials. The computation method used is the explicit finite difference methods. The properties of the fin material are assumed to be fixed, or do not change with changes in temperature. When the stability requirements are met, the use of the explicit finite difference methods yields satisfactory results. The use of the explicit finite difference methods can be developed for various other fin shapes, which are composed of two or more different materials, time-varying convection heat transfer coefficient, and the properties of the fin material that change with temperature.]]>
<![CDATA[IoT Based Smart Classroom ]]>
<![CDATA[Prajas Kadepurkar]]>;
<![CDATA[Prim Rochelle Dsouza]]>;
<![CDATA[Nivya Jomichan]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.2764
<![CDATA[A classroom is a place where there is always room for development; therefore just as the development for a student results in the ease of living, similarly a smart classroom focuses on the structural development leading to effective time and energy utilization. This project offers three major upgradation in classroom; the first being able to book a classroom dynamically using Raspberry Pi and toggling lights and fans using NodeMCU and a mobile application which also helps notify a student about the subject of the lecture, the time and the venue related to the commencement of a period. The second section of this project inputs the attendance of a student check in, using a portable real-time biometric system whose data can further be used to calculate the attendance statistics of each student which can be viewed by the respective student or the teachers can keep a track on their own assigned class using the mobile application. And the last part of the project focuses on keeping track of all the lights and fans, which are on after the lecture. After the lecture is done, it will check the status of the room, whether some other teacher for some other subject is using the lecture hall. Also when the teacher ends the class, the lights and fans will be switched off after 5 minutes buffer provided for the students to checkout. It will wait for 15 minutes and if it still does not receive any request then it will switch off the lights and fans of that particular lecture hall.]]>
<![CDATA[Conceptual Design of Modular Chassis Jig of Student Competition Car ]]>
<![CDATA[Heryoga Winarbawa]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3428
<![CDATA[Chassis jig is needed to ensure that the welded chassis components does not warp or deform during welding process. Through concept screening and concept scoring, multiple design of chassis jigs is narrowed down to next development process. This study aims to design a chassis jig for the fabrication of student car competition chassis. The desired result of this design process is chassis jig with the ability to manufacture a wide variety of student competition car chassis.]]>
<![CDATA[Stone, Paper, Scissors Mini-Game for AI Pet Robot ]]>
<![CDATA[Aditya Satish Aspat]]>;
<![CDATA[Elton Lemos]]>;
<![CDATA[Abhishek Ghoshal]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.2754
<![CDATA[The Artificial Intelligence(AI) Pet Robot is a combination of various fields of computer science. This paper showcases the various functionalities of our AI Pet. Most of the functionalities showcased use the immage processing modules made available through OpenCV. The pet robot has various features such as emotion recognition, follow routine, mini-game etc. This paper discusses the mini-game aspect of the robot. The game has been developed by using VGG16 convolutional network for identification of the action performed by the user. To improve the accuracy we have made use of background subtraction which gives removes all the unwanted objects from the background and gives a simple cutout of the users hand.]]>
<![CDATA[Classification of Toddler Nutrition Using C4.5 Decision Tree Method ]]>
<![CDATA[Kartono Pinaryanto]]>;
<![CDATA[Robertus Adi Nugroho]]>;
<![CDATA[Yanuarius Basilius]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3366
<![CDATA[Nutrition is very much needed in the growth of toddlers. It is very important to give babies a balanced nutritional intake at the right stage so that the baby grows healthy and is accustomed to a healthy lifestyle in the future. Children under five years of age are a group that is vulnerable to health and nutrition problems. In determining the nutritional status, it can be done in a system manner using the C4.5 decision tree classification method and entering several variables or attributes. The dataset tested was 853 toddlers. Classification is carried out to determine the nutritional status based on the weight/age (BB/U), height/age (TB/U) and weight/height (BB/TB) categories. The attributes used for the classification of BB/U are gender, weight and age. The attributes used for TB/U are gender, body length or height, and age. The attributes used for BB/TB are gender, weight, body length or height, and age. The average accuracy of the BB/U category is 90.16%, the average accuracy of the TB/U category is 76.64%, and the average accuracy of the BB/TB category is 83.83%.]]>
<![CDATA[Effects of the Existence of Fan in the Wood Drying Room and the Performance of the Electric Energy Wood Dryer ]]>
<![CDATA[Wibowo Kusbandono]]>;
<![CDATA[Petrus Kanisius Purwadi]]>
<![CDATA[ International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021 ]]>
Publisher : <![CDATA[Universitas Sanata Dharma ]]>
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DOI: 10.24071/ijasst.v3i1.3057
<![CDATA[The purpose of this study is to determine the effect of the presence of a fan in the wood drying room in the drying time of wood. In addition, it is also to determine the performance of the steam compression cycle engine used in wood drying machines and the conditions of air entering and leaving the wood drying room. Wood drying machines work on a source of electrical energy. The research was conducted experimentally. Variations in the study were carried out on the presence of fans in the drying room: (a) there were no fans and (b) there were 2 fans. The dried object is a sengon wood board, which has a length of 2 m, a width of 20 cm, and a thickness of 2 cm. The number of wooden planks is 70 wooden planks of uniform size. The wooden planks before drying have a moisture content of 29.6%, and when dry, have a moisture content of 10%. The research gave the following results: (a) if there are 2 fans in the drying room, the time needed to dry the sengon wood planks is around 42.6 hours, whereas if there is no fan around 49.9 hours (b) the average Coefficient of Performance (COP) of the steam compression cycle engine is 10.65 (c) The air condition enters the drying room when there are 2 fans, has a dry ball air temperature of 40oC with a relative humidity of 32% RH and the air condition when it comes out, has a dry ball air temperature of 28oC with a relative humidity of 73% RH.]]>
