As one of major underground pipelines, sewerage is an important infrastructure in any modern city. The most common problem occurring in sewerage is leaking, whose position and failure level is typically identified through closed circuit television (CCTV) inspection in order to facilitate rehabilitation process. This paper proposes a novel method of computer vision, morphological segmentation ba...

High-head storage hydropower schemes in Alpine areas are required to produce peak energy and to regulate electricity grids. Nevertheless the unsteady turbine operations induce hydropeaking in the river downstream of the powerhouse. The developed hydrological-hydraulic model can simulate glacier melt, snow pack constitution and melt, soil infiltration and run-off as well as hydraulic structures ...

A single biometric indicator used in biometric system that is uncomfortable with noisy data in user verification process. There are some kinds of restrictions on degree of freedom with some unacceptable error rates. With existing of these problems it’s very difficult for particular to improve the performance a biometric system. In biometric system finger recognition is very necessary process fo...

In the paper, an automatic spatio-temporal video sequence segmentation algorithm is proposed. To address this very daficult computer vision problem, several novel algorithms have been developed which use both spatial and temporal information. First, a novel temporal segmentation algorithm is developed based on our previous work in motion estimation. Second, an iterative split-and-merge spatial ...

We used inclined lithography to fabricate a pneumatic microvalve for tall microchannels such as those used to convey large cells. The pneumatic microvalve consists of three layers. The upper layer is the actual liquid microchannel, which has a parallelogram-shaped cross section of width 500 μm, height 100 μm, and an acute angle of 53.6◦. The lower layer is a pneumatic microchannel that function...

Quality control in ceramic tile manufacturing is hard, labour intensive and it is performed in a harsh industrial environment with noise, extreme temperature and humidity. It can be divided into colour analysis, dimension verification, and surface defect detection, which is the main purpose of our work. Defects detection is still based on the judgment of human operators while most of the other ...

introduction & objective: adequate and proper hydration during surgery is one of the duties of anesthesiologist. based on the different effects of dextrose–containing fluids and dextrose-free fluids on the level of blood sugar, we decided to evaluate the effects of these fluids on the blood sugar level after short-term surgeries. materials & methods: one hundred patients who were scheduled for ...

distance-balanced graphs are introduced as graphs in which every edge uv has the followingproperty: the number of vertices closer to u than to v is equal to the number of vertices closerto v than to u. basic properties of these graphs are obtained. in this paper, we study theconditions under which some graph operations produce a distance-balanced graph.