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All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) Internet of Things and Artificial Intelligence Journal InJEBA : International Journal of Economics, Business and Accounting
Zulkarnain , Zulkarnain
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Analysis of Price Perception and Celebrity Endorser on Purchasing Decisions for Skintific Skincare Products of UNRI Gen Z Graduate Students with Intervening Variables Online Customer Review Jayanti, Fitri; Zulkarnain , Zulkarnain; Machasin, Machasin
InJEBA : International Journal of Economics, Business and Accounting Vol. 2 No. 3 (2024): InJEBA (September)
Publisher : Basecamp Economics PubMed

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13279669

Abstract

This study was conducted to determine Analysis of Price Perception and Celebrity Endorser on Purchasing Decisions for Skintific Skincare Products of UNRI Gen Z Graduate Students with Intervening Variables Online Customer Review. The study was conducted by distributing questionnaires to 210 active postgraduate students at the University of Riau born between 1996 and 2010. The results of this study indicate that Celebrity Endorser, Online Customer Review, and price perception have a positive effect on purchasing decisions. Celebrity Endorser and price perception have a positive effect on Online Customer Review. Online Customer Review significantly mediates the relationship between Celebrity Endorser and purchasing decisions. Online Customer Review significantly mediates the relationship between price perception and purchasing decisions.
The Fabrication of Electronics Wearable Bracelets and approach to telecommunications: A Review Adiprabowo , Tjahjo; Ramdani , Dani; Andriana, Andriana; Zulkarnain , Zulkarnain; Hasudungan, Olly Vertus; Ali, Erfansyah; Bethel , Ade Yoska Artadinata; Panca , Dimas
Internet of Things and Artificial Intelligence Journal Vol. 5 No. 2 (2025): Volume 5 Issue 2, 2025 [May]
Publisher : Association for Scientific Computing, Electronics, and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/iota.v5i2.886

Abstract

This research aims to develop an innovative and easy-to-use fetal heart rate monitoring bracelet for pregnant women. The design of this bracelet involves various electronic aspects, including signal acquisition using optical sensors (Ultrasound Doppler, ECG, or PPG), signal processing with a microcontroller and efficient algorithms to eliminate noise and detect heart rate, as well as data display and communication via LCD screen, LED indicator, or Bluetooth connection. The power aspect is an important consideration in the selection of the right battery and power management. The design of the bracelet considers ergonomics and safety for pregnant women and fetuses. Testing and validation are carried out thoroughly, including functionality testing and clinical trials. This research also considers ethical aspects, such as data privacy and information reliability. By integrating all these aspects, it is hoped that this research can produce a prototype fetal heart rate monitoring bracelet that is accurate, safe, and comfortable to use, thus contributing to improving maternal and child health. Wearable Bracelet must-have comfort factors components consisting of Size & Dimensions, Device Weight, Strap Material, Thickness, Flexibility, Component Distribution, Edges & Corners, and Skin Ventilation. From the intructables' sample results the comfort level is 52.5%, while the tool created by Puput Dani Prasetyo has a comfort level of only 50%. And this needs to be increased to >90%.
Pembuatan Alat Uji Putaran Kritis Poros Jufrizal, Ryan; Mukhnizar, Mukhnizar; Afdal , Afdal; Abu , Risal; Zulkarnain , Zulkarnain
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 4 (2023): Oktober
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i4.26059

Abstract

This critical shaft rotation test tool is used to calculate the maximum deflection of a steel shaft. Currently, the critical shaft rotation test tool still uses human power to operate it, namely by rotating the handle to read the rotation value. So the test results carried out are not effective and accurate. This tool uses an electric motor with ¼ HP power and 2800 Rpm rotation as the driving force. So that the results are more accurate, this tool is designed to use an electronic system (sensor) equipped with a digital counter. Making this critical rotation test tool for the shaft goes through several processes, namely, making a table or position of the critical rotation test tool for the shaft using a digital counter, selecting the disk (load), selecting the bearing (pillow block), selecting the electric motor, selecting the shaft, and selecting the voltage regulator. . The testing phase has undergone several testing stages and the results are as planned. The tool that has been made can be operated effectively and obtain results as planned, and its operation is very easy.
Co-Authors Adiprabowo , Tjahjo Afdal , Afdal Ali, Erfansyah Andriana Andriana Bethel , Ade Yoska Artadinata Fitri Jayanti, Fitri Hasudungan, Olly Vertus Jufrizal, Ryan Machasin Machasin Mukhnizar Panca , Dimas Ramdani , Dani Risal Abu