Results 211 to 220 of about 114,205 (258)

Network analysis of smartphone addiction and sleep disorder symptoms in Chinese college students. [PDF]

PLoS One
Li X, Mao L.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Real time detection of 3-nitrotyrosine using smartphone-based electrochemiluminescence

Biosensors and Bioelectronics, 2021
As an oxidase stress biomarker, 3-nitrotyrosine is closely associated with many cardiovascular diseases. Thus, early diagnosis and real time detection of 3-nitrotyrosine at bedside are highly important. Herein, we developed a handheld electrochemiluminescence (ECL) analysis device, which integrates printed circuit board (PCB) for electrical stimulation
Lihang Zhu, Shuang Li, Wenxin Liu, Jing Chen, Qiwen Yu, Zhen Zhang, Yi Li, Jun Liu, Xing Chen   +8 more
openaire   +2 more sources

3-D Localization for Smartphones using a Single Speaker

2019 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2019
In this paper, we describe a novel 3-D positioning method for a smartphone using only one external speaker. To obtain the smartphone’s 3-D position using this speaker, we apply the concept of a mirror-image speaker. For a mirror-image speaker, the primary reflected signals from the wall or floor are captured as signals transmitted from a "virtual ...
Hiroaki Murakami, Masanari Nakamura, Hiromichi Hashizume, Masanori Sugimoto   +3 more
openaire   +1 more source

A low-cost 3-D printed stethoscope connected to a smartphone

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2016
We demonstrate the fabrication of a digital stethoscope using a 3D printer and commercial off-the-shelf electronics. A chestpiece consists of an electret microphone embedded into the drum of a 3D printed chestpiece. An electronic dongle amplifies the signal from the microphone and reduces any external noise.
Carlos Aguilera-Astudillo, Marx Chavez-Campos, Alan Gonzalez-Suarez, Jose L. Garcia-Cordero   +3 more
openaire   +2 more sources

Cube 3-D orientation from smartphone pictures

2014 IEEE 28th Convention of Electrical & Electronics Engineers in Israel (IEEEI), 2014
Smartphones are exactly what their names imply, smart with a variety of sensors, and due to mass production affordable as computing devices. But an important issue is whether they are robust enough for real computation in embedded systems. This work does a feasibility test, using smartphone images to calculate the 3-D orientation of a cube.
Iaakov Exman, Eyal Ben David
openaire   +1 more source