نتایج جستجو برای: فولاد st 37
تعداد نتایج: 203731 فیلتر نتایج به سال:
BACKGROUND Electroacupuncture (EA) at acupoint ST 37 (Shangjuxu) has been used to alleviate gastrointestinal symptoms and improve gastrointestinal motility. However, the mechanisms by which EA affects the enteric nervous system (ENS) have scarcely been investigated. In this study, we investigated whether EA could improve ENS function. METHODS A constipation model was established by gastric in...
Background: Coronary artery disease is a major worldwide health issue of immense scope. It the biggest cause death and illness in both male female all over globe. Objective: To assess “prevalence non-ST segment elevation myocardial infarction patients with acute coronary syndrome having normal ECG. Methodology: The current study was cross sectional carried out at department cardiology, Qazi Hus...
Abstract Steel is one of the most widely used metals in engineering. There are several things that make this material by humans, among others, amount quite abundant nature, usually still form iron ore or pure iron. It has good mechanical properties (strength and ductility), easy to work with either casting method machining so it can be made according human wishes, price relatively cheap. This s...
Serotype 1 is an important cause of invasive pneumococcal disease in South Africa and has declined following the introduction of the 13-valent pneumococcal conjugate vaccine in 2011. We genetically characterized 912 invasive serotype 1 isolates from 1989 to 2013. Simpson's diversity index (D) and recombination ratios were calculated. Factors associated with sequence types (STs) were assessed. C...
Symptom-limited cardiopulmonary exercise testing was performed in 37 patients with mitral stenosis (MS) without significant coronary artery stenosis to evaluate factors affecting ST depression in exercise electrocardiograms. The degree of ST depression was not associated with gender or exercise tolerance. The incidence of significant ST depression was higher in the patients receiving than in th...
Twenty four hour ambulatory monitoring was performed on 120 healthy volunteers using a frequency modulated recorder: 50 men and 50 women below 40 years and 20 men between 40 and 60 years were studied. Twenty eight subjects had episodes of ST segment elevation (range 1-3 mm), which occurred almost invariably at night with a slow heart rate 62.4 +/- 10.4 beats/min). ST segment elevation occurred ...
دانشمندان و محققین بسیاری و هر یک با استفاده از روشهای متفاوتی میزان جذب انرژی و همچنین شکل پذیری بادبندهای همگرا را افزایش داده اند از جمله روشهای ارایه شده استفاده از بادبندهای دارای المانهای اصطکاکی بادبندهای دارای غلافهای فولادی یا بتنی و در نهایت استفاده از فیوزها که عمده ترین روش استفاده از آنها درقالب المانهای خمشی می باشند در المان های اصطکاکی از اصطکاک ایجاد شده بین دو صفحه جذب و استهل...
جوشکاری قوس الکتریکی تحت پوشش گاز محافظ یکی از مهم ترین فرآیندهای تولید با کاربردهای زیادی در صنایع مختلف می باشد. امروزه نانوفناوری در زمینه های مختلف برای ساخت محصولاتی با کیفیت خوب استفاده شده است. در تحقیقات جوش استفاده از نانوذرات یک ایده ی جدید و چالش برانگیز برای بهبود کیفیت اتصالات جوشی می باشد. در فرآیند gas metal arc weldind (gmaw) انتخاب مقادیر مناسب برای پارامترهای ورودی فرآیند، امر...
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