The aim of this study was to investigate the validity of the ActiSmile (AS), a physical activity feedback device. Twenty-five participants (age: 36.5 ± 14.3 y) performed nine different activities including standing, running, cycling, playing badminton, sweeping the floor with a broom, and several types of walking for 3 min 25 s each. Each participant received two AS devices, one attached at the...

Wearable devices can gather sensitive information about their users. For this reason, automated authentication and identification techniques are increasingly adopted to ensure security and privacy. Furthermore, identification can be used to automatically customize operations according to the needs of the current user. A gait-based identification method that can be executed in real time on devic...

This paper proposes a novel heading estimation approach for indoor pedestrian navigation using the built-in inertial sensors on a smartphone. Unlike previous approaches constraining the carrying position of a smartphone on the user's body, our approach gives the user a larger freedom by implementing automatic recognition of the device carrying position and subsequent selection of an optimal str...

The typical problems facing garment manufacturers are long production lead time, bottlenecking, and low productivity. The most critical phase of garment manufacturing is the sewing phase, as it generally involves a number of operations or for the simple reason that it’s labor intensive. In assembly line balancing, allocation of jobs to machines is based on the objective of minimizing the workfl...

OBJECTIVE To evaluate effects of cellular phone radiofrequency electromagnetic waves (RF-EMW) during talk mode on unprocessed (neat) ejaculated human semen. DESIGN Prospective pilot study. SETTING Center for reproductive medicine laboratory in tertiary hospital setting. SAMPLES Neat semen samples from normal healthy donors (n = 23) and infertile patients (n = 9). INTERVENTION(S) After l...

Human activity recognition has been a hot topic in recent years. With the advances in sensor technology, there has been a growing interest in using smartphones equipped with a set of built-in sensors to solve tasks of activity recognition. However, in most previous studies, smartphones were used with a fixed position—like trouser pockets—during recognition, which limits the user behavior. In th...

In this paper we present an initial study into the feasibility of using a mobile phone as a personal tactile display when interacting with a tabletop computer. There has been an increase in recent years in large touchscreen computers that use soft keyboards for text input. Text entry performance on such keyboards can be poor due to the lack of tactile feedback from the keys. Our approach is to ...

Various sensors have been recently integrated in a smart-phone and step detection method based on the acceleration sensor of a smart-phone has been introduced for indoor positioning scheme. Many researchers have put their interests on the study of step detection algorithm based on the acceleration sensor. However, the estimation performances of these methods are not good enough or just suitable...

The patient was a 47-year-old man who worked as a sales representative. He presented with a history of falling down stairs two years previously, at which time he sustained trauma to the right shoulder. Since then, he had experienced pain and functional impairment, which he described as being unable to perform intimate hygiene or grab a wallet from his back trouser pocket and difficulty in using...

CASE REPORT The patient, M.M., a nine year old boy was admitted to Ards Hospital on the evening of 25th January, 1964, at 9.30 p.m. An hour previously he had been running along a wall, a few feet above the ground, when he tripped, fell and landed doubled up on the ground. In his right hand trouser pocket he had a knife six inches long, the blade of which was pointing upwards. The point of the k...