نتایج جستجو برای: 5g
تعداد نتایج: 9171 فیلتر نتایج به سال:
5G mobile communications requires system and network considerations from many aspects. Instead of high spectral efficient physical layer communication, We introduce efficient network structure supplying a new design paradigm to meet user experience, spectral efficiency, and energy efficiency, under wide range of services and applications on top of 5G mobile communication networks, with virtual ...
در این بررسی، 208 فرد بدون علائم بالینی بیماری های قلبی-عروقی و سابقه ترومبوز وریدی، از نقاط مختلف ایران با نژادهای متفاوت، مطالعه شدند. جهت ارزیابی توزیع پلی مورفیسمpai-1 4g/5g، یکی از عوامل ژنتیکی ایجاد بیماری های قلبی عروقی در جمعیت ایران، از روش هیبریدیزاسیون معکوس برای تشخیص سریع و دقیق استفاده شد. اساس آزمون روش multiplex pcr و هیبریدیزاسیون بر روی نوار آزمون است. این نوار شامل خطوط موازی...
Data on genetic and environmental factors influencing PAI-1 levels and their consequent effect on clot lysis in black African populations are limited. We identified polymorphisms in the promoter area of the PAI-1 gene and determined their influence on PAI-1act levels and plasma clot lysis time (CLT). We also describe gene-environment interactions and the effect of urbanisation. Data from 2010 a...
BACKGROUND The polymorphism of plasminogen activator inhibitor-1 (PAI-1) 4G/5G gene has been indicated to be correlated with coronary artery disease (CAD) susceptibility, but study results are still debatable. OBJECTIVE AND METHODS The present meta-analysis was performed to investigate the association between PAI-1 4G/5G gene polymorphism and CAD in the Chinese Han population. A total of 879 ...
The variants c.306+5G>A and c.1865T>A (p.Leu622His) of the DNA repair gene MLH1 occur frequently in Spanish Lynch syndrome families. To understand their ancestral history and clinical effect, we performed functional assays and a penetrance analysis and studied their genetic and geographic origins. Detailed family histories were taken from 29 carrier families. Functional analysis included in sil...
Since the 4G concepts have already moved to the standardization phase, we must begin to work on the building blocks of the following generation (which we refer to as 5G) wireless networks. These networks will facilitate the provision of ubiquitous and affordable broadband (very high speed) wireless connectivity. This paper aims at highlighting some of the concepts and technologies which will fa...
The next fifth generation (5G) of wireless communication networks comes with a set of new features to satisfy the demand of data-intensive applications: millimeter wave frequencies, massive antenna arrays, beamforming, dense cells, etc. In this paper, we investigate the use of beamforming techniques through various architectures and evaluate the performance of 5G wireless access networks, using...
BACKGROUND The association between plasminogen activator inhibitor-1 (PAI-1) 4G/5G polymorphism and recurrent pregnancy loss (RPL) risk is still contradictory. We thus performed a meta-analysis. MATERIAL AND METHODS Relevant studies were searched for in PubMed, Web of Science, Embase, and Cochrane Library. An odds ratio (OR) with a 95% confidence interval (CI) was used to assess the associati...
Triggered by the explosion of mobile traffic, 5G cellular network requires evolution to increase the system rate 1000 times higher than the current systems in 10 years. Motivated by this common problem, this paper studies to integrate mm-wave access into current cellular networks as multi-band heterogeneous networks to exploit the ultrawideband aspect of the mm-wave band. This paper provides co...
aims: arsenic contamination of natural water resources has become an important environmental problem in the world. the adsorption method by iron filings adsorbent or zero-valent iron was used. the study aimed to evaluate the efficiency of iron filings in arsenite removal from polluted water and to investigate the effect of magnetic field on the process. materials & methods: this interventional ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید