objectives this study aims to detect the effect of selected aerobic exercises on sleep quality in non-athlete middle-aged women. materials and methods fifteen non-athlete middle-aged women participated in this study, all of them suffered from insomnia. pittsburgh questionnaire was used for determining sleep quality in this sample. four indices including sleep duration, sleep disturbance, sleep ...

In this paper, the class of bilinear systems subjected to unknown inputs for which there exists a disturbance decoupled observer with linear error dynamics is characterised. It is shown that the design of this kind of observer is equivalent to the design of a disturbance decoupled observer for a linear system. This result simplifies considerably the observer design comparatively to those propos...

In high-end testing and manufacturing equipment, a trend exists whereby the traditional servo feed system with ball screw rotary motor will gradually be replaced by direct drive system. The precision motion driven permanent magnet linear synchronous (PMLSM) offers several advantages, including high speed, acceleration, positioning accuracy. However, operating of device affected PMLSM robustness...

Time series analysis can identify outliers in tree-ring widths that may not only indicate past disturbances, but may also estimate the subsequent effe cts of these disturbances on tree growth. Findin g a way to isolate these disturbance signals from tree-ring time series could have broad applications in forest ecology and management. Time series outliers may be expressed as pulse, step, or tren...

background and purpose: birth outcomes and fertility measures are commonly evaluated in maternal and child health integrated program (mchip) in the field of public health. given the key role of time- trend study in the projection of current data to the future, this population-based study aimed to describe the significant changes of birth outcomes and fertility measures in the rural population o...