A program that automatically detects auroral events in all-sky images taken by the all-sky camera of IRF has been written. Current programs that automatically detect the aurora in all-sky images using the RGB color system often miss strong aurora and sometimes interprets clouds as aurora. To improve …

The thermally-sensitive resistors (thermistors) used in VSL’s water calorimeter to detect the radiation-induced temperature change in water are affected by self-heat. The measurement current used to determine their resistance causes their temperature to increase above that of their environment. The self-heat …

Sensor systems can be deployed in the homes of older adults living alone for functional health assessments. Their information is very useful for health care specialists. The problem lies in developing person independent models while facing a large variability in behavior. We address this problem by, …

Aim Many long-term ostomates are ‘out-of-sight’ of healthcare, and it is unknown how ostomates deal with ostomy- related problems and how these problems affect their quality of life (QOL). The aim is to examine patient-related studies describing ostomy-related problems and their impact on the perceived …

The rise of smart technologies has created new opportunities to support blind and visually impaired persons (VIPs). One of the biggest problems we identified in our previous research on problems VIPs face during activities of daily life concerned the recognition of persons and their facial expressions. …

In 2017 Volvo will deliver 100 self-driving cars as part of the Drive Me project. These cars will be able to drive autonomously on the ring road of Gothenburg, without requiring any driver supervision. To realize this vision, the cars need different algorithms to recognize, and be able to react to, different …

Background: The ability to generate muscle strength is a pre-requisite for all human movement. Decreased quadriceps muscle strength is frequently observed in older adults and is associated with a decreased performance and activity limitations. To quantify the quadriceps muscle strength and to monitor …

Cyber criminals use phishing emails in high-volume and spear phishing emails in low volume to achieve their malicious objectives. Hereby they inflict financial, reputational, and emotional damages on individuals and organizations. These (spear) phishing attacks get steadily more sophisticated as cyber …

Maintaining the quality of data in information systems is an important issue that all organizations face. Existing data quality management solutions are based on offline methods carried out in infrequent intervals (like surveys). These methods suffer inherently from high costs, high delays, and thus …

OBJECTIVE: To determine the prevalence of generalized joint hypermobility (GJH) in Dutch children aged 5.5 years, and to examine the association between GJH and motor performance and development over time. STUDY DESIGN: A prospective cohort of 249 children was recruited. GJH was assessed with the Beighton …