This paper presents the transient model of a new FACTS device, the center node unified power flow controller(C-UPFC), installed at the midpoint of a transmission line. The C-UPFC consists of three voltage source inverters (VSI) with common DC link. One of the converters is connected in parallel at the midpoint of line and the other two converters are connected in series. The simulation results ...

Assembly line balancing problem belongs to the most investigated topics in manufacturing systems. Since 1955 a lot of exact and heuristic methods were developed and implemented to real factories. Another problem, which occurs in balance process, is an estimation of quality measures of final results. Even optimal solution because of precedence relations includes idle times. Therefore despite of ...

where UN0 is the excretion of urinary nitrogen on a protein-free diet and K is the nitrogen balance index of the dietary nitrogen (1). This is an equation for a straight line in regions of negative and low positive nitrogen balance where this balance is linearly related to absorbed nitrogen. Thus the index (K), which is the rate of change of nitrogen balance with respect to absorbed nitrogen, i...

In our hospital in 1989 a series of 30 healthy elderly people participated in a study to evaluate the effect of physical training on improving balance. Thereafter, the majority of the people in this group continued with some kind of balance training. Seven years later we followed up 17 of the people who had participated in the original study. We wanted to evaluate the balance performance of the...

Glaciers are one of the terrestrial essential climate variables (ECVs) as they respond very sensitively to climate change. A key driver of their response is the glacier surface mass balance that is typically derived from field measurements. It deserves to be quantified over long time scales to better understand the accumulation and ablation processes at the glacier surface and their relationshi...