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Hasil Pencarian

Ditemukan 55 dokumen yang sesuai dengan query
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"This book provides an overview of modern sensing technologies and reflects the remarkable advances that have been made in the field of intelligent and smart sensors, environmental monitoring, health monitoring, and many other sensing and monitoring contexts in today’s world. It addresses a broad range of aspects, from human health monitoring to the monitoring of environmental conditions, from wireless sensor networks and the Internet of Things to structural health monitoring. Given its breadth of scope, the book will benefit researchers, practitioners, technologists and graduate students involved in the monitoring of systems within the human body, functions and activities, healthcare technologies and services, the environment, etc."
Switzerland: Springer Cham, 2019
e20502442
eBooks  Universitas Indonesia Library
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Hendriyanto Haditjahyono
"Penelitian ini bertujuan untuk mengoptimalkan performance dari peralatan yang digunakan dalam pembuatan lapisan tipis (film), yang meliputi catu daya evaporator, pengukur tekanan, pengukur temperatur dan pengukur tebal lapisan tipis, agar dapat bekerja secara terintegrasi dan terkendali.
Beberapa hal yang dilakukan dalam penelitian ini adalah mendisain dan membuat rangkaian pengendali temperatur, memperbaiki rangkaian pengukur tekanan, serta memodifikasi rangkaian catu daya evaporator agar dapat dikendalikan secara otomatis oleh pengukur laju evaporasi.
Pada akhir penelitian ini:
1. Temperatur lapisan tipis (film) selama evaporasi dapat dijaga konstan pada temperatur tertentu yang diinginkan dengan fluktuasi ± 5 %.
2. Tekanan ruang vakum dapat diukur menggunakan sebuah pengukur tekanan, baik untuk mengukur tekanan yang lebih besar dari 10-3 mbar dengan metode termal maupun tekanan yang lebih kecil dari 10-3 mbar dengan metode ionisasi. Pergantian dua metode pengukuran tekanan tersebut berlangsung secara otomatis.
3. Laju evaporasi, proses pemanasan awal (pre deposisi) dan tebal akhir lapisan tipis yang diinginkan dapat diprogram sebelumnya. Daya listrik yang diberikan catu daya ke evaporator diatur sepenuhnya oleh rangkaian pengendali.
Oleh karena proses pembuatan lapisan tipis dengan cara evaporasi termal ini bekerja secara otomatis maka kualitas lapisan tipis yang dihasilkannya akan lebih baik dan bersifat repetitif."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1999
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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R. Bagus Suryasa M.
"Intensitas cahaya infra red (pada sensor GP2D12) dapat digunakan sebagai dasar untuk mengukur level cairan pada jangkauan 10 cm hingga 80 cm. Berdasarkan pengukuran level cairan tersebut dapat dirancang-bangun sistem kendali level cairan dengan menggunakan mikrokontroler AVR AT90S8535. Pada sistem kendali level cairan yang menggunakan intensitas cahaya infra red (IR) sebagai dasar pengukurannya, Batas Level Atas dan Batas Level Bawah cairan yang dikendalikan dapat dirubah-rubah sesuai dengan kebutuhan melalui Setting pada program mikrokontroller. Informasi hasil pengukuran dan pengendalian level cairan yang dilakukan oleh mikrokontroler AVR AT90S8535 tersebut secara real time dapat dikirim dan diterima pada jaringan computer lokal (LAN) melalui komunikasi data serial dengan menggunakan RS232 sehingga pemantauan dapat dilakukan di komputer klien yang terhubung dengan jaringan komputer lokal (LAN). Jangkauan jarak ukur sistem pengukuran yang dibangun dapat ditingkatkan melalui peningkatan intensitas emisi infra red dan peningkatan kepekaan tranduser infra red. Sistem kendali level cairan ini dapat dimanfaatkan dan dikembangkan lebih lanjut untuk proses-proses di plant dan industri dengan menambahkan berbagai tranduser dan aktuator yang diperlukan.Komunikasi data dengan LAN dapat dikembangkan lebih lanjut sehingga server LAN dapat mengambil alih sistem kendali yang dilakukan oleh AVR AT90S8535.Peran RS232 dalam Komunikasi data dengan LAN dapat digantikan dengan RS485 yang jangkauannya mencapai 1000 m."
Depok: [Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, ], 2005
T39773-pdf
UI - Tesis Membership  Universitas Indonesia Library
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Rizki Priya Pratama
"The cranes are widely used to facilitate the transport of goods. This project aims to create a miniature crane to study and analyze its behavior, especially the swing of the load while moving, and then develop and implement a system controlling the position and velocity of the load of the crane using a specific control technique. The purpose of controlling this apparatus is automatically move the crane to a particular position at a certain speed, while trying to keep the swing of the mass to a minimum/no sway. The method used is the state feedback control implemented in VB.net and it produces a very good response. The overall structure of the miniature crane system consists of a computer/program, the LabJack, amplifiers, a motor, sensors, and the miniature crane apparatus. The use of linearization technique could overcome the problem of the dead zone on the motor."
Depok: Fakultas Teknik Universitas Indonesia, 2011
T29827
UI - Tesis Open  Universitas Indonesia Library
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Arya Senna Abdul Rachman
"Seiring meningkatnya penggunaan CAD/CAM dan kemajuan pesat Virtual Reality dalam sistem manufaktur maka proses perencanaan assembly (perakitan) bisa dilakukan dalam Dunia Virtual tanpa memerlukan bentuk fisik dari material maupun proses. Karya tulis ini membahas perancangan dan pengembangan sebuah sistem Data Glove yang membaca perpindahan tangan dan lentingan jari menggunakan sensor Inertial Measurement Unit (IMU) dan sensor flex. Microcontroller dan program komputer antarmuka Application Programming Interface (API) kemudian mentranslasikan bacaan sensor menjadi kontrol rotasi, translasi dan zoom di dalam program CAD 3D (Autodesk Inventor). Pengujian kinerja mendemonstrasikan Motion Glove memungkinkan penggunanya untuk melakukan manipulasi objek dalam proses Virtual Assembly secara optimal dan intuitif.

With the increasing use of CAD/CAM and virtual reality in manufacturing system, the assembling process planning can now be done virtually. This paper discusses the design and development of a data glove system, which capture the hand motion and finger flex (respectively using Inertial Measurement Unit (IMU) and flex sensors) connected to microcontroller (a “Motion Glove”). API program then interprets the sensors readings into object rotation, translation and zoom control in a 3D CAD program (Autodesk Inventor). Performance test demonstrates motion glove allows more immersion into virtual reality and consequently more intuitive experience of manipulating objects in virtual assembling process."
Depok: Fakultas Teknik Universitas Indonesia, 2014
S55359
UI - Skripsi Membership  Universitas Indonesia Library
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Tri Yuliani
"Penelitian ini mengembangkan pembuatan biosensor elektrokimia menggunakan nanopartikel core-shell Fe3O4@Au yang dimodifikasi hemoglobin pada Screen Printed Carbon Electrode (SPCE) untuk mendeteksi akrilamida. Fe3O4NP (~4,9 nm) dan core-shell Fe3O4@Au (~5-6,4 nm) berhasil disintesis melalui metode dekomposisi termal. Hasil ini dikonfirmasi oleh analisis UV-Visible Spectrometer (UV-Vis), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) dan Transmission Electron Microscopy (TEM). Studi awal elektrokimia hemoglobin optimum didapatkan pada ABS 0,1 MpH 6 dengan konsentrasi optimal hemoglobin sebesar 2 mg/mL. Fe3O4@Au yang termodifikasi Hb memiliki ukuran yang lebih besar, dikarakterisasi dengan Scanning Electron Microscopy (SEM), FTIR, dan Zeta Potensial. Kinerja Fe3O4@Au/Hb dievaluasi untuk mendeteksi akrilamida dilakukan dengan metode Cyclic Voltammetry (CV) pada rentang potensial -0,8-0,8 V, scanrate 50 mV/s didapatkan koefisien regresi linear R2 = 0,98 pada rentang konsentrasi 0-1 μM dengan Limit of Detection (LOD) sebesar 0,136 μM dan sensitivitas sebesar 0,4411 μA/μM. Selain itu, studi interferensi dilakukan untuk beberapa senyawa sederhana lainnya seperti asam askorbat, melamin, glukosa, kafein dan natrium asetat. Pengukuran akrilamida pada real sampel berupa kopi bubuk dilakukan secara elektrokimia dengan biosensor ini dan divalidasi dengan metode standar High Performance Liquid Performance (HPLC).

This work reports an investigation on the fabrication of electrochemical biosensor based on hemoglobin-modified core-shell Fe3O4@Au nanostructures on screen printed carbon electrode for the detection of acrylamide. Here, both Fe3O4NP (~4.9 nm) and core-shell Fe3O4@Au (~5-6.4 nm) nanostructures were successfully synthesized via thermal decomposition method. These results are discussed by analysis of UV-Visible Spectrometers (UV-Vis), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Transmission Electron Microscopy (TEM). Preliminary electrochemical investigation at ABS pH 6 also revealed that the optimum amount of hemoglobin immobilization were obtained at ABS 0.1 M pH 6 with an optimal hemoglobin concentration of 2 mg/mL. Hb modified Fe3O4@AuNP has a larger size, characterized by Scanning Electron Microscopy (SEM), FTIR, and Zeta Potential. The performance of Fe3O4@Au/Hb was evaluated to detect acrylamide using the Cyclic Voltammetry (CV) method in the potential range of -0.8-0.8 V, a scanrate of 50 mV/s obtained a linear regression coefficient R2=0.98 in the concentration range 0-1 μM with a Limit Detection (LOD) 0.136 μM and sensitivity 0.4411 μA/μM. In addition, studi interference is made for a number of simple compounds such as ascorbic acid, melamine, caffeine and sodium acetate. The measurement of acrylamide in real samples consisting of ground coffee was carried out by electrochemistry with this biosensor and validated by the standard High Performance Liquid Performance (HPLC) method."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
T54553
UI - Tesis Membership  Universitas Indonesia Library
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"This handbook volume aims to provide a comprehensive, self-contained, and authoritative reference in MEMS. It covers the theoretical and practical aspects including but not limited to sensors, actuators, RF MEMS, micro fluids and bio MEMS systems. It is particularly recommended to undergraduates, postgraduates, researchers, scientists, and field experts. This comprehensive summary will provide a solid knowledge background and inspire innovations in this highly interdisciplinary field.
The handbook series consists of 5 volumes: Micro/nano fabrication technology, MEMS, Nanomaterial, Nanomedicine and Applications of micro-/nanotechnologies in IT. Experienced researchers and experts are invited to contribute in each of these areas.The series is published under Springer Major Reference works, which allows continuous online update and publication. These features allow newcomers and other readers to keep in touch with the most up-to-date information in micro-/nanotechnologies.It presents an overview of the knowledge base, as well as selected topics and provides comprehensive and authoritative information on the field for researchers, engineers, scientists and graduate students who are involved in different aspects of micro-/nanotechnologies.This publication will provide inspiration for innovative research and application ideas for continued growth of the field."
Singapore: Springer Singapore, 2019
e20509544
eBooks  Universitas Indonesia Library
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Abd Alazeez Almaleeh
"The purpose of this paper is to classification of three main types of Malaysian honey (Acacia, Kelulut and Tualang) according to their botanical origin using UV–Vis Spectroscopy and digital camera. This paper presented the classification of the honey based on two characteristics from three (3) types of local honey, namely the antioxidant contents and colour variations. The former uses the UV spectroscopy of selected wavelength range, and the latter using RGB digital camera. Principal Component Analysis (PCA) was used for both methods to reduce the dimension of extracted data. The Support Vector Machine (SVM) was used for the classification of honey. The assessment was done separately for each of the methods, and also on the fusion of both data after features extraction and association. This paper shows that classification of the fusion method improved significantly compared to single modality Honey classification based on the fusion method was able to achieve 94% accuracy. Hence, the proposed methods have the ability to provide accurate and rapid classification of honey products in terms of origin. The proposed system can be applied in Malaysia honey industry and further improve the quality assessment and provide traceability."
Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:3 (2017)
Artikel Jurnal  Universitas Indonesia Library
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"This volume covers the various sensors related to automotive and aerospace sectors, discussing their properties as well as how they are realized, calibrated and deployed. Written by experts in the field, it provides a ready reference to product developers, researchers and students working on sensor design and fabrication, and provides perspective on both current and future research."
Singapore: Springer Nature, 2019
e20509816
eBooks  Universitas Indonesia Library
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Afsarimanesh, Nasrin
"This book presents the design of a robust, portable and low-cost PoC sensing system for the early detection of bone loss. The device can measure the level of CTx-I-one of the most sensitive biochemical markers of bone resorption-in serum and transmit the measured value to an IoT-based cloud server. The selectivity of the sensing system to CTx-I has been achieved by coating the sensor with artificial antibodies, prepared by means of molecular imprinting technology. Explaining all aspects of the systems development in detail, the book will be of great interest to all engineers, researchers and scientists whose work involves the development of electrochemical sensors and PoC devices."
Switzerland: Springer Nature, 2019
e20508033
eBooks  Universitas Indonesia Library
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