The development of a model-based approach for a damage severity assessment applied on a complex composite skin structure with stiffeners is presented in this paper. Earlier investigations on composite structures with stiffeners revealed that a vibration based structural health monitoring approach, employing the Modal Strain Energy Damage Index (MSE-DI) algorithm can detect and localise delamina...

In this paper, a two-stage method for damage detection and estimation in tall shear frames is presented. This method is based on the first mode shape of a shear frame. We demonstrate that the first mode shape slope is very sensitive to the story stiffness. Thus, at the first stage, by using the grey system theory on the first mode shape slope, damage locations are identified in shear frames. Da...

In this paper we analyse the interactions between fire severity (plant damage) and plant regeneration after fire by means of remote sensing imagery and a field fire severity map. A severity map was constructed over a large fire (2692 ha) occurring in July 1994 in the Barcelona province (north-east of Spain). Seven severity classes were assigned to the apparent plant damage as a function of burn...

objective: patients with bipolar mood disorder constitute a relatively large number of individuals hospitalized in psychiatric hospitals. this disorder is highly co-morbid with other psychiatric disorders and may effect their clinical course. the goal of this study was to determine the co-occurrence rate of anxiety disorders and substance abuse with bipolar mood disorders and their impact on cl...

aim and background: the present study aimed to investigate the symptom severity and quality of life in patients suffering from bipolar disorder. methods and materials: this longitudinal and prospective study was done on 20 patients with bipolar type i disorder who were hospitalized in noor hospital of isfahan, iran. patients were evaluated before hospitalization, at the time of discharge, 3 and...

background chronic obstructive pulmonary disease (copd) is a devastating disease.while there is no cure for copd and the lung damage associated with this disease cannot be reversed, it is still very important to diagnose it as early as possible. objectives in this paper, we propose a novel method based on the measurement of air trapping in the lungs from ct images to detect copd and to evaluate...

The purpose of this study was to investigate the effects of various levels of vestibular function on balance in two, free-standing rhesus monkeys. We hypothesized that postural control strategy depended on the severity of vestibular damage. More specifically, that increased muscle stiffness (via short-latency mechanisms) was adequate to compensate for mild damage, but long-latency mechanisms mu...

conclusions in view of the limitations of the above-mentioned modalities, liver biopsy remains the gold standard method for documentation of diagnosis and estimation of disease severity in nafld. context considering the increasing prevalence of obesity and insulin resistance syndrome worldwide, non-alcoholic fatty liver disease (nafld) has become a major health concern. early diagnosis and prop...

rheumatoid arthritis is a disease associated with painful joints that affects approximately 1% of the population worldwide, and for which no effective cure is available. it is characterized by chronic joint inflammation and variable degrees of bone and cartilage erosion. oxygen metabolism has an important role in the pathogenesis of rheumatoid arthritis. reactive oxygen species (ros) are produc...