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Aptisi Transactions on Technopreneurship (ATT)
Published by Asosiasi Perguruan Tinggi Swasta Indonesia
ISSN : 26558807     EISSN : 26568888     DOI : https://doi.org/10.34306
Core Subject : Economy, Humanities, Science, Education, Social,
Humanities Computer Science & IT Economics, Econometrics & Finance Education Social Sciences
APTISI Transactions on Technopreneurship (ATT) is an international triannual open access scientific journal published by  Pandawan Sejahtera Indonesia. ATT publishes original scientific researchers from scholars and experts around the world with novelty based on the theoretical, experimental, and numerical framework. The Journal aims to make noteworthy contributions to knowledge across the globe through the publication of original, high-quality research articles in the area of entrepreneurship and the impact of emerging technologies on it. In addition to original research articles, APTISI Transactions on Technopreneurship (ATT) publishes reviews, mini-reviews, case reports, letters to the editor, and commentaries, thereby providing a platform for reports and discussions on cutting edge perspectives in the domain of entrepreneurship. All submitted papers will undergo the strict single-blind peer-reviewing process. The Journal is dedicated to publishing manuscripts via a rapid, impartial, and rigorous review process. Once accepted, manuscripts are approved free online open-access instantly upon publication, allowing users to read, download, copy, distribute, print, search, or link to the full texts, thus providing access to a broad readership.
Arjuna Subject : Bisnis, Menejemen, dan Akutansi (semua kategori) - Sistem Informasi Menejemen
Articles 10 Documents
 1 
Search results for , issue "Vol 3 No 2 (2021): September" : 10 Documents clear
GOOD, BAD AND DARK BITCOIN: A Systematic Literature Review Untung Rahardja; Qurotul Aini; Eka Purnama Harahap; Raihan Raihan
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.175

Abstract

Crypto currency investments have been in demand since the popularity of bitcoin. Crypto currency (cryptocurrency) is a currency based on cryptography or digital currency. The birth of bitcoin as one of the important foundations in the formation of the reputation of the crypto currency. Investing in crypto currencies is considered to provide more security and large profits for investors, with a cryptographic system the crypto currency is difficult to hack and fake. This cryptocurrency is also a digital key with encryption capabilities as security and validity, as well as real value that can be exchanged as an option. The most popular type of virtual currency is known as Bitcoin, and its popularity and strength continue to increase. At first glance, Bitcoin is very confusing. But here are ten facts that can be explained in simple terms, exactly what that little coin is and what happens.
Convolutional Neural Networks in Medical Image Understanding Megha Upreti; Chitra Pandey; Ankur Singh Bist; Buphest Rawat; Marviola Hardini
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.188

Abstract

In the era of social media images/pictures play a vital role. Facebook, whatsapp, instagram everywhere we see a lot of pictures nowadays. Along with social media, the pictures play a very important role in medical science. Medical Image can help in diagnosis, clinical treatment and teaching tasks. Traditional classification of images has reached an end because of its time taking nature and efforts made to extract, select and classify . This problem is solved with the help of CNN(Convolutional neural network).In medical science we have treatment for body anomalies that were not there before .Using the deep learning models of CNN we can detect the disease like Cancer ,Lung Infection and treat it. This article aims to provide a comprehensive survey of applications of CNNs in medical image understanding.
The Influence of Curriculum Based on the Indonesian National Qualifications Framework (KKNI) on the Quality of Student Learning (Studies on Students at the State University of Medan) Blasius Erik Sibarani
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.179

Abstract

The curriculum is one of the supporting factors of successful learning and of course the curriculum is structured to be able to improve the quality of each student. Currently the current curriculum is being discussed, namely the curriculum based on the Indonesian national qualification framework (KKNI). This curriculum is very closely related to the HOTS system (High Order Thinking Skill), where this system requires students / students to think high-level that requires a variety of different learning and teaching steps by just learning facts and concepts alone. The KKNI curriculum requires students to go directly into the real world / field. This curriculum is also expected to be able to harmonize cognitive, psychomotor, and affective. The purpose of this study was to find out and analyze how the influence of KKNI on the quality of student learning. Data collection techniques are by distributing questionnaires to respondents as many as 40 respondents. The research method used in this study is by using a correlational method that is related to the descriptive method, where the writer will look for the relationship between the variables studied, namely the KKNI towards the quality of student learning. The research approach used by the writer is by using qualitative and quantitative approaches. The results showed that there was an influence of the KKNI curriculum on the quality of student learning. The research method used in this study is by using a correlational method that is related to the descriptive method, where the writer will look for the relationship between the variables studied, namely the KKNI towards the quality of student learning. The research approach used by the writer is by using qualitative and quantitative approaches. The results showed that there was an influence of the KKNI curriculum on the quality of student learning. The research method used in this study is by using a correlational method that is related to the descriptive method, where the writer will look for the relationship between the variables studied, namely the KKNI towards the quality of student learning. The research approach used by the writer is by using qualitative and quantitative approaches. The results showed that there was an influence of the KKNI curriculum on the quality of student learning. Keywords: Curriculum, HOTS, KKNI
RETRACTED (ditarik) : Science Literacy in Early Childhood: Development of Learning Programs in the Classroom Choiriyah; Ninda Lutfiani; Alfiah Khoirunisa; Adam Faturahman; Efa Ayu Nabila
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Following rigorous, careful concerns and communication between the publisher and the authors of the article published in Aptisi Transactions on Technopreneurship to article entitled “Science Literacy in Early Childhood: Development of Learning Programs in the Classroom” Vol 3, No 2, pp. 30-36, September 2021. This paper has been withdrawn at the request of the author and has been retracted. The article contained redundant material, the author has informed the editor that the paper was published in the Indonesian Journal of Early Childhood Education Studies, 10(2), pp. 136-142. The publisher apologizes to the authors and readers for the error and any inconvenience caused.
Numerical Simulation of Solar Air Heater using Paraffin Wax-Aluminum Compound as Phase Changing Material Atul Kumar; Prabhakar Bhandari; K.S. Rawat
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.199

Abstract

This paper presents a theoretical investigation of solar air heater using phase change material (PCM). PCM used in present configuration is homogenous mixture of paraffin wax with Aluminium powder. The purpose of using Aluminium powder with paraffin wax is to increase the thermal conductivity. PCM mixtures are encapsulated in cylinders and are used as solar absorbers. Using MATLAB program, the effect of different parameters is studied. It has been observed that with increase in mass flow rate, air outlet temperature decreases and freezing time of cylinder decreases. However, at constant mass flow rate, with increase in cylinder radius, air temperature decreases and while freezing time increase sharply. The different parameters have to be chosen such that performance of solar air heater can be optimized.
Thermo-Fluidic Modelling of a Heat Exchanger Tube with Conical Shaped Insert having Protrusion and Dimple Roughness Bhanu Pratap Singh; Vijay Singh Bisht; Prabhakar Bhandari; K.S Rawat
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.200

Abstract

In the present work, thermo-fluidic behavior of a heat exchanger tube with conical shaped insert has been investigated with the help of finite volume method. To enhance the heat transfer rate, two different types of roughness has been used in conical insert i.e. protrusion and dimple roughness. A three-dimensional computational model with RNG turbulence model is used for the simulation and it has been performed for three different diameters (3 mm, 6 mm and 9 mm) and two different pitch space (120 mm and 180 mm) for both protrusion and dimple roughness. The present model has been validated with Dittus-Boelter equation and with Blasius equation for Nusselt number and friction factor, respectively. For a constant heat flux of 1200 W/m2, effect of roughness, diameter and pitch on Nusselt number and friction factor has been predicted for Reynold number range of 5000 to 30000. From the result, it is found that, the protrusion shaped roughness has better thermal performance factor than dimple shape and diameter of 6 mm has performed better than 3 mm and 9 mm for both the cases of roughness due to favorable flow dynamics.
Blockchain Technology Application: Authentication System in Digital Education Amitkumar; M. Ifran Sanni; Dwi Apriliasari
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.209

Abstract

The application of technology in various aspects of life has made it easy for many people. However, there are also shortcomings in the use of technology, one of which is security issues, both transactions and data. Given these issues in this paper, we propose blockchain technology for an authentication system that will protect data rights and interests and be safe from interference to store information in the form of confidential text, especially in the application of technology in education. From this writing, there are 2 benefits, the first is that all data stored in the education system is guaranteed and there will be increased trust from both parents, teachers and other parties due to the decentralized nature of blockchain.
Influence of Post Covid Change In Consumer Behaviour of Millennials On Advertising Techniques and Practices Prakriti Rashi; Ankur Singh Bist; Ari Asmawati; Mukti Budiarto; Wahyu Yustika Prihastiwi
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.210

Abstract

The pandemic caused by Covid 19 has kicked off survival strategies from vulnerable groups of people to small businesses, which has challenged the core operating practices and modified consumption patterns. Thus, effective marketing strategies are imperative in these times, that not only convey values of the brand but also resonate with people. Market disruptions are most likely to impact millennials and Gen Z and given the exploration and spending propensity, millennials are most likely to drive demand during the pandemic as well as in the post pandemic world. This research proposal aims to explore how consumer habits have changed during pandemic, how likely these habits will stick in the post pandemic world and how advertising needs to be transformed which relates best with millennials. The methodology involves a detailed analysis of literature and gathering insights from social media sites through big data. This research investigates the impact of avoiding deterministic automatisms purchasing processes, implying the need to understand, from an academic and conceptual standpoint, the utility of the set of business strategies to truly influence consumer purchasing behaviour of Millennials.
Exploration of Islamic Religious Learning Innovation Technology with the iLearning Approach Hendriyati Haryani; Erna Astriyani; Viola Tashya Devana
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.211

Abstract

The field of education has an important role for a country in producing high-quality young generations so that they can be responsible for advancing the country. This important role is in line with the function of education, which is to develop abilities and shape the character and civilization of a dignified nation in order to educate the nation's life. Seeing the importance of education for the nation's next generation, it is necessary to innovate quality learning methods from childhood education to education in lectures. In this study, it will focus on improving the quality of learning methods, especially in Islamic religious lessons with the approach ilearning -which has been intensively developed for several years. Researchers will explore learning application innovations with an assessment focus seen from the feasibility component of learning applications, with the resulting structure covering 4 factors: Parental control, contribution to development skill, efficiency and motivation. In this study, the assessment will be carried out by means of interviews in the form of a questionnaire to 100 data and the population calculation method, namely slovin, will be used in this study. The results of this study found an innovative learning application that meets the four assessment criteria. In this study, the dojo application has met 4 learning application assessment criteria by successfully occupying the first position in the four assessment categories. The assessment of parental control gets a percentage of 47%, the assessment of the role of skill development factors gets a percentage of 28%, the efficiency factor gets a percentage of 31% and the last assessment factor is the motivation factor where in the assessment of this factor the dojo application gets a percentage of 31%. Judging from this assessment, the dojo application can be stated as an application that is close to the learning application criteria in accordance with 4 (four) important factors in a learning application.
Hash Algorithm In Verification Of Certificate Data Integrity And Security Muhammad Rehan Anwar; Desy Apriani; Irsa Rizkita Adianita
Aptisi Transactions On Technopreneurship (ATT) Vol 3 No 2 (2021): September
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v3i2.212

Abstract

The hash function is the most important cryptographic primitive function and is an integral part of the blockchain data structure. Hashes are often used in cryptographic protocols, information security applications such as Digital Signatures and message authentication codes (MACs). In the current development of certificate data security, there are 2 (two) types of hashes that are widely applied, namely, MD and SHA. However, when it comes to efficiency, in this study the hash type SHA-256 is used because it can be calculated faster with a better level of security. In the hypothesis, the Merkle-Damgård construction method is also proposed to support data integrity verification. Moreover, a cryptographic hash function is a one-way function that converts input data of arbitrary length and produces output of a fixed length so that it can be used to securely authenticate users without storing passwords locally. Since basically, cryptographic hash functions have many different uses in various situations, this research resulted in the use of hash algorithms in verifying the integrity and authenticity of certificate information.

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