1. Fabrication of a low-cost and high-resolution papercraft smartphone spectrometer

   http://arxiv.org/abs/1910.12616v1 · arxiv

   We demonstrated the fabrication of a low-cost and high-resolution papercraft smartphone spectrometer and characterized its performance by recording spectra from gas discharge lamps. The optical design and a lab-made narrow slit used in the fabrication led to fine images of the slit on the image sens

2. Smartphone screens as astrometric calibrators

   http://arxiv.org/abs/2303.04961v2 · arxiv

   Geometric optical distortion is a significant contributor to the astrometric error budget in large telescopes using adaptive optics. To increase astrometric precision, optical distortion calibration is necessary. We investigate using smartphone OLED screens as astrometric calibrators. Smartphones ar

3. Between Post-Flaneur and Smartphone Zombie Smartphone Users Altering Visual Attention and Walking Behavior in Public Space

   http://arxiv.org/abs/2103.01217v1 · arxiv

   The extensive use of smartphones in our everyday lives has created new modes of appropriation and behavior in public spaces. Recognition of these are essential for urban design and planning practices which help us to improve the relationship between humans, technologies, and urban environment. This

4. Smartphone sensing platform for emergency management

   http://arxiv.org/abs/1406.3848v1 · arxiv

   The increasingly sophisticated sensors supported by modern smartphones open up novel research opportunities, such as mobile phone sensing. One of the most challenging of these research areas is context-aware and activity recognition. The SmartRescue project takes advantage of smartphone sensing, pro

5. A report on personally identifiable sensor data from smartphone devices

   http://arxiv.org/abs/2003.06159v1 · arxiv

   An average smartphone is equipped with an abundance of sensors to provide a variety of vital functionalities and conveniences. The data from these sensors can be collected in order to find trends or discover interesting correlations in the data but can also be used by nefarious entities for the purp

6. Visualizing acoustical beats with a smartphones

   http://arxiv.org/abs/1605.01370v2 · arxiv

   In this work, a new Physics laboratory experiment on Acoustics beats is presented. We have designed a simple experimental setup to study superposition of sound waves of slightly different frequencies (acoustic beat). The microphone of a smartphone is used to capture the sound waves emitted by two eq

7. Towards ultra-low-cost smartphone microscopy

   http://arxiv.org/abs/2312.11479v1 · arxiv

   The outbreak of COVID-19 exposed the inadequacy of our technical tools for home health surveillance, and recent studies have shown the potential of smartphones as a universal optical microscopic imaging platform for such applications. However, most of them use laboratory-grade optomechanical compone

8. Multi-sensor authentication to improve smartphone security

   http://arxiv.org/abs/1703.03378v1 · arxiv

   The widespread use of smartphones gives rise to new security and privacy concerns. Smartphone thefts account for the largest percentage of thefts in recent crime statistics. Using a victim's smartphone, the attacker can launch impersonation attacks, which threaten the security of the victim and othe

9. Acoustic-based Object Detection for Pedestrian Using Smartphone

   http://arxiv.org/abs/2106.01838v1 · arxiv

   Walking while using a smartphone is becoming a major pedestrian safety concern as people may unknowingly bump into various obstacles that could lead to severe injuries. In this paper, we propose ObstacleWatch, an acoustic-based obstacle collision detection system to improve the safety of pedestrians

10. Predicting Smartphone Battery Life based on Comprehensive and Real-time Usage Data

    http://arxiv.org/abs/1801.04069v1 · arxiv

    Smartphones and smartphone apps have undergone an explosive growth in the past decade. However, smartphone battery technology hasn't been able to keep pace with the rapid growth of the capacity and the functionality of smartphones and apps. As a result, battery has always been a bottleneck of a user

10 hasil · 660 md