The articulating surfaces of four different sizes of unused pyrolytic carbon proximal interphalangeal prostheses (PIP) were evaluated though measuring several topographical parameters using a white light interferometer: average roughness (Sa); root mean-square roughness (Sq); skewness (Ssk); and kurtosis (Sku). The radii of the articulating surfaces were measured using a coordinate measuring ma...

GSI (Geographical Survey Institute) is researching to apply high-resolution satellite imagery to topographical mapping. Previous studies with IKONOS and SPOT5 show its effectiveness. QuickBird has the highest resolution among the commercial satellites. According to prior studies, QuickBird mono image with DEM gave good results for horizontal accuracy and discrimination. We confirmed the accurac...

OBJECTIVE Electromyogram (EMG) contamination is often a problem in electroencephalogram (EEG) recording, particularly, for those applications such as EEG-based brain-computer interfaces that rely on automated measurements of EEG features. As an essential prelude to developing methods for recognizing and eliminating EMG contamination of EEG, this study defines the spectral and topographical char...

Hydrological drought is critical from both water management and ecological perspectives. Depending on its hydrological physical features, the resilience level of a catchment to groundwater can differ that meteorological drought. This study presents comparison indices based levels 1987 2018. A small area in Croatia, consisting two sub-catchments with continental climate minimum land-use changes ...

BACKGROUND In highly populated African urban areas where access to clean water is a challenge, water source contamination is one of the most cited risk factors in a cholera epidemic. During the rainy season, where there is either no sewage disposal or working sewer system, runoff of rains follows the slopes and gets into the lower parts of towns where shallow wells could easily become contamina...