Results 51 to 60 of about 1,438,154 (291)

Investigation of geometric parameters of silicon structures in device layer during manufacture of sensitive elements of micromechanical accelerometers

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
The technological processes of fabrication inertial elements of devices of microelectromechanical systems are investigated. The influence of etch square on critical parameters of the process of deep reactive ion etching, allowing to etch silicon ...
N. S. Karanin
doaj   +1 more source

A Comparative Study on the Suitability of Smartphones and IMU for Mobile, Unsupervised Energy Expenditure Calculi

open access: yesSensors, 2015
The metabolic equivalent of task (MET) is currently the most used indicator for measuring the energy expenditure (EE) of a physical activity (PA) and has become an important measure for determining and supervising a person’s state of health.
Angel Ruiz-Zafra   +4 more
doaj   +1 more source

Exploiting wearable devices for the calibration of inertial navigation systems [PDF]

open access: yes2017 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2017
Wearable devices have many applications, pedestrian navigation among them. In this case, the inertial measurement unit (IMU) is embedded in the wearable device. Moreover, inertial navigation systems (INSs) based on non-foot-mounted IMUs use the step-length-and-heading estimation approach.
Bousdar Ahmed, Dina   +2 more
openaire   +4 more sources

Finding the critical impact energy for micro debris generation in MEMS inertial sensors

open access: yes, 2021
The work presents a consistent follow-up on a study to identify the critical impact energy of suspended polysilicon masses onto stoppers Hi, to prevent creation of debris and particles which affect the lifetime stability of MEMS inertial sensors.
L. Gaffuri Pagani   +4 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Development of a New Wearable Device for the Characterization of Hand Tremor

open access: yesBioengineering, 2023
Rest tremor (RT) is observed in subjects with Parkinson’s disease (PD) and Essential Tremor (ET). Electromyography (EMG) studies have shown that PD subjects exhibit alternating contractions of antagonistic muscles involved in tremors, while the ...
Basilio Vescio   +7 more
doaj   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Low-cost inertial microfluidic device for particle size separation

open access: yes, 2023
Low-cost inertial microfluidic device for particle size ...
Rodríguez, C
core   +2 more sources

Monitoring the Impact of Two Pedagogical Models on Physical Load in an Alternative School Sport Using Inertial Devices

open access: yesSensors
(1) Background: Physical Education sessions subject students to various physical and physiological demands that teachers must understand to design interventions aimed at improving health and fitness.
Olga Calle   +4 more
doaj   +1 more source

Dual-INS pedestrian navigation system design with foot distance measuring

open access: yesDianzi Jishu Yingyong, 2018
In order to meet the application requirements of high-precision pedestrian autonomous navigation and indoor positioning, a prototype of wearable human motion measurement system integrating Arduino and Xsens Awinda inertial measurement kit is designed ...
Zhou Luyang, Hu Yigong, Wu Yuanxin
doaj   +1 more source

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