shot peening applies a residual compressive stress field (rcsf) on the surface of parts. it also shifts “crack nucleation sites” to sub-surface locations. a nondestructive method of measuring the stresses, sin2ψ was utilized here and the stress values introduced to ansys software. for this purpose, uniform stress in all directions was applied on the con rod. loading on the rod in ansys had thre...

conclusions our findings indicate that fatigue and disability may affect a patient’s quality of life. although mobility may affect the overall quality of life in patients with multiple sclerosis, it may also affect the physical health of ms patients. therefore, the identification of factors affecting the quality of life in ms patients may help in predicting the quality of life, and designing a ...

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...

Abstract: Introduction: Research has shown that many pregnant women in Iran do not exercise during pregnancy. However, exercise, especially endurance exercise during pregnancy, is associated with good maternal and fetal outcomes. Objective: The study aimed to examine the effect of squat exercises on fatigue and the life quality of pregnant women admitted to health centers in Hamadan City, Ira...

conclusions the present study showed the beneficial effects of nutritional training on fatigue and adl in patients with ms. therefore, nurses and dietitians should regularly assess the patients’ dietary pattern and train them and their families about appropriate diet. methods this quasi-experimental one group, pretest and posttest study was performed on 40 patients with ms, who were convenientl...

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 ...

this paper reviews the current literature examining the pervasive symptom of fatigue experienced in three of the most common degenerative neurological conditions: multiple sclerosis (ms), parkinson’s disease (pd) and post-polio syndrome (pps). the existing literature can be considered under four headings definition and prevalence, type, cause, impact of fatigue. fatigue is a common symptom in d...

The inspection of various structures often detects a fatigue cracks developed during long service life. These fatigue cracks significantly reduce remaining fatigue life and fatigue strength. Influence of the initial fatigue cracks size in non-load-carrying fillet-welded one-sided transverse attachment joints on the remaining fatigue life and fatigue strength is considered in this paper. A compu...

Warm mix asphalts (WMA), because of their low production and compact temperatures, may have different behaviors in long term. In the present work, the energy-based criteria along with the 50% reduction in initial stiffness (Nf50%) using four-point bending test under controlled-strain conditions of 1000 microstrain were applied to compare the prepared two warm mix and HMA samples. All these crit...

objective: cancer creates a lot of stress and can significantly affect quality of life. the purpose of this study is to investigate the role of stage of disease, illness perceptions, unmet needs and fatigue in predicting the quality of life of patients with cancer. method: the sample consisted of 120 hospitalized patients in tehran's shohada hospital in 2014 that was selected purposefully....