نتایج جستجو برای: borotropic shift
تعداد نتایج: 136756 فیلتر نتایج به سال:
Fostering autonomous learning has become one of the key concerns of course designers and curriculum planners in the last 20 years which has been validated on both ideological and psychological grounds. However, estimating learners’ readiness to accept autonomous education is an important step prior to moving toward autonomous education. Thus, the current research investigated the patterns of au...
We have developed the effective algorithm for detecting digital binary phase-shift keyed signals. This algorithm requires a small number of arithmetic operations over the signal period. It can be relatively easy implemented based on the modern programmable logic devices. It also provides high interference immunity by identifying signal presence when signal-to-noise ratio is much less that its w...
The existence of shift for periodically correlated processes and its boundedness are investigated. Spectral criteria for these non-stationary processes to have such shifts are obtained.
Background and aims: Security personnel of hospitals in Iran are one of shift worker groups that are affected more than of other shift workers. Methods: This study was performed in 3 hospitals of Shiraz University of Medical Sciences and 130 workers of security personnel were evaluated. Data of shift workers were collected with Survey of Shift workers (SOS) questionnaire and at the same tim...
Background: Shift work can be associated with decreasing performance, changing eating habits, getting into conditions such as fatigue and insomnia, developing individual and social life disorders and health problems. This study is aimed to investigate the prevalence of shift work disorders among nurses working in Ilam’s teaching hospitals in order to provide solutions for dealing with these d...
Background and Aim: Shift work may induce adverse effects such as health problems on human life. The purpose of this study was to investigate shift work-related health problems and their associated risk factors among workers of petrochemical industries. Materials and Methods: This cross-sectional study was carried out in 21 petrochemical companies affiliated to the National Petrochemical Indu...
Aim: To generate and demodulate an amplitude shift keyed (ASK) signal and a binary FSK signal. Amplitude shift keying-ASK-in the context of digital communications is a modulation process, which imparts to a sinusoid two or more discrete amplitude levels. These are related to the number of levels adopted by the digital message. For a binary message sequence there are two levels, one of which is ...
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