In this paper we present an approach to adaptive control of hydraulic actua tors with exible mechanical loads The approach is based on recursive identi cation of low order models of the dynamics from valve input to actuator position and e ective load pressure respectively The model parameters are used to com pute a regulator that gives a well damped system with good servo properties The identi ...

backgrounds and aims: characteristic property among tehran offensive and non- offensive drivers using cloninger , s treatment and character inventory questionnaire was studied. materials and methods: a cross- sectional study was carried out after coordinating with traffic police. 300 drivers: 150 offensive ( drivers with more than ten penalty points and 150 non- offensive drivers with less than...

T his is a case of a 47-year-old German lorry driver with very limited English who presented with sudden onset of a neck pain followed by an occipital headache while he was on the motorway. The pain forced him to stop his vehicle and call a friend who brought him to accident and emergency department. On examination, he had unsteady gait, slight dysarthria and subtle horizontal nystagmus on extr...

Avulsion fracture of the brachioradialis origin at its proximal attachment on the lateral supracondylar ridge of the distal humerus is exceedingly rare, and only two cases have been reported in the literature so far. In this article, we present a 38 years old patient who sustained a closed avulsion fracture of the lateral supracondylar ridge of left humerus at the proximal attachment of brachio...

traffic fatalities are a major cause of morbidity and mortality in iran. occupational sleep medicine field needs more cost-effective and applicable tests for screening purposes. this study reports on a pilot screening study for drowsy drivers in an urban iranian sample of commercial drivers. the maintenance of wakefulness test (mwt) measures the ability to remain awake objectively. sleep latenc...

Exhaust emissions contribute greatly to air pollution, the social cost of which may occur as danger to human health, attracting huge medical expenses, causing absenteeism and hence loss of productivity. These are incentives to reduce exhaust emissions to the barest minimum. Two major cities in Ghana, Accra and Kumasi, are struck by vehicular traffic jams especially during rush-hours and are gra...

the present study aims to simulate the spatial pattern of land use change in lisar protected area,iran. land cover maps for 1989, 2000, and 2007 were depicted using tm, etm+, and irs liss-iii images ofthe area at stake. images were classified using a merge of unsupervised and supervised classification. camarkov model was used to predict land cover maps as a top-down approach in investigating la...