نتایج جستجو برای: and damage type

تعداد نتایج: 17024786  

Abolfazl Barzgar Bafrouei, Maryam Nafar Sefid Dashti, Marzieh Sadeghi Sefiddashti, Moosa Javdani, Roya Ghorbani Ghahfarokhi,

Lymphocyte is one of the subtypes of white blood cell (WBC) in immune system. Lymphocytes contain T cells, natural killer cells , and B cells. They are the head type of cell found in lymph, which for this reason the name "lymphocyte". Lymphocytes can be recognized by their large nucleus. Infiltration of immune cells in the central nervous system (CNS) helps the start of chronic pain. ...

F. Abdollahi, J. Shahmiri, S. M. Eslami, S. M. Tavakkoli,

This paper aims to introduce topology optimization as a robust tool for damage detection in plane stress structures. Two objective functions based on natural frequencies and shape modes of the structure are defined to minimize discrepancy between dynamic specifications of the real damaged structure and the updating model. Damage area is assumed as a porous material where amount of porosity sign...

Effect of nano-structuration and compounding of YSZ APS TBCs investigated on coating behavior in thermal shock conditions. The coatings were applied on Inconel 738 discs with three different thickness per powder. In order to harmonize the results from the samples, performance factor is defined as a criterion that in the starting of the activity has an amount of about 100 and is reduced after th...

Self-centering rocking walls are known as viable alternatives to typical shear walls, as they provide a number of solutions for eliminating seismic flaws of conventional designs. These rocking walls have a generally positive impact on the seismic behavior of structural systems, but their design makes them susceptible to concrete crushing around their base, which can lead to significantly advers...

J. Junfeng L. Siqi, Y. Tianlai

To understand the seismic damage characteristics of bottom frame-wall buildings and to study their seismic performance, the seismic damage outcomes of  bottom frame-wall structures in Du jiang weir by the Wen chuan earthquake on May 12,2008, China were field observed and studied. The assesment of the seismic damage to the bottom frame-wall masonry in Du jiang weir urban showed that the damage t...

Stroke is the world's largest neurological defect caused by the disruption of brain blood circulation. Apart from death, the severest damage caused by stroke, a plethora of other mental and physical disabilities can ensue the incidence of a stroke. As a result of the continued disruption of blood circulation triggered by a stroke, biochemical and physiological mechanisms affect nerve cells and ...

Kazem Khodai, MohammadReza Dehkhoda, Sohrab Malekzadeh,

The aim of this research was to study the effect of warm up with two different type intensity on plasma antioxidant enzymes and damage indices of lipid, protein and DNA after intensive activity in non-athlete males. 12 non athlete students of kharazmi University participated in this study. Firist, subjects VO2peak were measured by Gas analyzer (Meta Max 3B) on the ergometer cycle with increment...

اکبری حامد, احسان, حسن عبدالی, مائده, خوش قدم, علیرضا, خوش گرد, کریم, رضائی, محمد, صدیقی پاشاکی, عبدالعظیم, غلامی, محمد هادی,

Background and purpose: Breast cancer is the most common type of cancer among women. In radiation therapy for breast cancer it is important to prevent damage to normal tissues particularly to lung tissue. In this study, we investigated the incidence of damage in patients with breast cancer by clinical and dosimetric parameters to identify the predictive factors. Materials and methods: An exp...

Journal: :acta medica iranica 0
mohammad ali naraghi departments of anatomy and institute of cancer, school of medicine, tehran university of medical sciences, tehran, iran.

a 28-year-old man with neurofibromatosis type 1(nf1) presented with a tumor in the sciatic nerve and femoral nerve. the differential diagnosis of malignant peripheral nerve sheath tumor was based on clinical, radiological, and histological evidence. the tumor apparently originated in sciatic nerve at the posterior aspect of the left thigh. the lesion was resected totally without neural damage t...

The presence of part-through cracks with limited length is one of the prevalent defects in the plate structures. Due to the slight effect of this type of damages on the frequency response of the plates, conventional vibration-based damage assessment could be a challenging task. In this study for the first time, a recently developed state-space method which is based on the chaotic excitation is ...

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