نتایج جستجو برای: fatigue
تعداد نتایج: 70017 فیلتر نتایج به سال:
conclusions office workers with chronic hepatitis c, treated with pegylated-interferon-α2b plus ribavirin, had work performance loss. in subjects treated with acetyl-l-carnitine supplementation we observed increased daily activity and reduced presenteeism and fatigue. acetyl-l-carnitinegroup had a smaller reduction of productivity comparing to placebo group. results significant difference were ...
The present paper studies the effect of creating a fillet on fretting fatigue strength of an axle, using different multiaxial fatigue criteria and fretting fatigue damage parameter. Finite element method is applied to obtain stress and strain in the axle and the results obtained from modeling are compared with the experimental test data available in literature. The results show that fretting fa...
Background and purpose: Fatigue is one of the most common disabling complaints in patients with multiple sclerosis (MS). According to recently studies, between 60 to 90% of MS suffer of excessive fatigue. The nature of MS related fatigue is clearly distinct from normal fatigue. Complementary therapies probably effect on reduction of fatigue such as physiotherapy, yoga and exercise therapy. The ...
Nowdays, the prediction and prevention of fatigue failures is converted to one of the most concerns for industry owners. Since the processes of fatigue suddenly occur, it is most important and necessary to recognize the effective factors of fatigue life of structures. Mechanical and thermal multiple loading are the important factors of the fatigue failure. In order to appropriate fatigue design...
The effect of an electroless Ni-Cu-P coating on the fatigue behavior of quenched and tempered CK45 steel has been investigated. The fatigue tests under rotating bending conditions have been conducted in three different conditions of uncoated, as-deposited and shot peened prior to the coating deposition. The results indicate that plating of the base steel leads to a fatigue life reduction. The d...
In this paper, the effect of interference fit on fatigue life of holed plate of mechanical joints was investigated experimentally. Fatigue tests were carried out on the holed specimens of Al-alloy 7075-T6 alloy. The interference fit process consists of force fitting a fastener into the hole with a negative clearance (diameter of the fastener is larger than of the hole) that produces beneficial ...
Background & Aims of the Study: Nursing is one of the highly stressful jobs. Nurses have to provide health service, in many cases, to the patients with incurable disease. Working in such environment induces severe and permanent mental pressures, which in long-run can create fatigue and negative effects on performance of the nurses. The main objective of the present study is to surve...
Purpose: Reaction time is a good indicator of coordination between sensory motion and individual performance. It is the time interval from perceiving sudden stimulus until the reaction to that stimulus. One of the factors affecting reaction time is fatigue. Considering the different characteristics of fatigue in men and women, this study aimed to compare the effect of fatigue on the choice reac...
abstract background: fatigue is the most common and highly disabling symptom of multiple sclerosis (ms) that has negative effects on employment, the process of socialization, compliance with the disease, and other factors effective on activities of daily living. the usage of complementary and alternative medicine methods in ms patients is higher than in the general population. however, there is...
conclusions orem’s self-care model is significantly effective in reducing the fatigue of multiple sclerosis patients. objectives to determining the effect of orem’s self-care model on fatigue in multiple sclerosis patients. patients and methods this research involved a clinical trial. sixty-three multiple sclerosis patients at the vice-chancellor in treatment affairs of yasuj university of medi...
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