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Technologies, Volume 9, Issue 3

September 2021 - 25 articles

Cover Story: Electrical impedance tomography (EIT) is a low-cost, safe, and high-temporal-resolution medical imaging modality which is applied extensively in real-time thoracic impedance imaging. Thoracic impedance changes can reveal information about patients’ physiological condition, making EIT a valuable medical monitoring tool. However, EIT is sensitive to measurement noise and modeling errors, making the design of EIT hardware setup challenging. We introduce a simulation approach for EIT system hardware and reconstruction evaluation. It combines the system’s hardware with equivalent RLC circuits of 3D finite-element models based on CT images of thoracic cavities. The measured voltage data are used to perform image reconstruction considering different hardware configurations.View this paper
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Articles (25)

  • Article
  • Open Access
2 Citations
6,967 Views
18 Pages

Open-Source Script for Design and 3D Printing of Porous Structures for Soil Science

  • Romain Bedell,
  • Alaa Hassan,
  • Anne-Julie Tinet,
  • Javier Arrieta-Escobar,
  • Delphine Derrien,
  • Marie-France Dignac,
  • Vincent Boly,
  • Stéphanie Ouvrard and
  • Joshua M. Pearce

Three-dimensional (3D) printing in soil science is relatively rare but offers promising directions for research. Having 3D-printed soil samples will help academics and researchers conduct experiments in a reproducible and participatory research netwo...

  • Article
  • Open Access
4 Citations
3,030 Views
13 Pages

Differences in Contrast Reproduction between Electronic Devices for Visual Assessment: Clinical Implications

  • Ainhoa Molina-Martín,
  • David P. Piñero,
  • María B. Coco-Martín,
  • Luis Leal-Vega and
  • Dolores de Fez

The easy access to electronic devices for users has resulted in the development of a vast range of programs and applications for visual evaluation and diagnosis that can be downloaded to any device. Some of them are based on tasks and stimuli that de...

  • Article
  • Open Access
17 Citations
8,172 Views
23 Pages

Lack of sustainable strategic approaches has led to non-functional, unsafe, inaccessible, and fragmented urban green infrastructure within cities. In sub-Saharan African cities, the development and management of urban green infrastructure are not rea...

  • Feature Paper
  • Article
  • Open Access
2 Citations
5,274 Views
12 Pages

Disrupting Audio Event Detection Deep Neural Networks with White Noise

  • Rodrigo dos Santos,
  • Ashwitha Kassetty and
  • Shirin Nilizadeh

Audio event detection (AED) systems can leverage the power of specialized algorithms for detecting the presence of a specific sound of interest within audio captured from the environment. More recent approaches rely on deep learning algorithms, such...

  • Feature Paper
  • Article
  • Open Access
4 Citations
6,181 Views
12 Pages

Design, Construction and Tests of a Low-Cost Myoelectric Thumb

  • Murat Ayvali,
  • Inge Wickenkamp and
  • Andrea Ehrmann

Myoelectric signals can be used to control prostheses or exoskeletons as well as robots, i.e., devices assisting the user or replacing a missing part of the body. A typical application of myoelectric prostheses is the human hand. Here, the developmen...

  • Communication
  • Open Access
3,798 Views
10 Pages

A Design Study of Orthotic Shoe Based on Pain Pressure Measurement Using Algometer for Calcaneal Spur Patients

  • Dwi Basuki Wibowo,
  • Agus Suprihanto,
  • Wahyu Caesarendra,
  • Adam Glowacz,
  • Rudiansyah Harahap,
  • Ryszard Tadeusiewicz,
  • Eliasz Kańtoch and
  • Pg Emeroylariffion Abas

The pressure pain threshold (PPT) is a useful tool for evaluating mechanical sensitivity in individuals suffering from various musculoskeletal disorders. The aim of this study is to investigate PPT at the heel area in order to assist in the design of...

  • Review
  • Open Access
203 Citations
28,510 Views
37 Pages

Post-Processing of 3D-Printed Polymers

  • John Ryan C. Dizon,
  • Ciara Catherine L. Gache,
  • Honelly Mae S. Cascolan,
  • Lina T. Cancino and
  • Rigoberto C. Advincula

Additive manufacturing, commonly known as 3D printing, is an advancement over traditional formative manufacturing methods. It can increase efficiency in manufacturing operations highlighting advantages such as rapid prototyping, reduction of waste, r...

  • Review
  • Open Access
15 Citations
11,159 Views
20 Pages

Big Data in Biodiversity Science: A Framework for Engagement

  • Tendai Musvuugwa,
  • Muxe Gladmond Dlomu and
  • Adekunle Adebowale

Despite best efforts, the loss of biodiversity has continued at a pace that constitutes a major threat to the efficient functioning of ecosystems. Curbing the loss of biodiversity and assessing its local and global trends requires a vast amount of da...

  • Article
  • Open Access
11 Citations
4,855 Views
28 Pages

The unique art that was developed in Byzantine times is widely accepted as a precursor to the Renaissance and is still evident in monuments either from or influenced by the Byzantium. Visiting such a site is a unique experience due to the lavishly pa...

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Technologies - ISSN 2227-7080