نتایج جستجو برای: drx

تعداد نتایج: 401  

2017
Hawar Ramazanali Alexey Vinel Magnus Jonsson

The number of wireless connected devices are growing exponentially and the importance of this research area is growing as well to meet the known and looming challenges and expectations. The 5:th Generation telecommunications standard is partly embodied by the Machine-to-Machine (M2M) and Internet of Things (IoT) technologies and standards to handle a big part of these devices and connections. A...

Journal: :Materials 2023

The 2195 Al–Li alloy, as one of the representative third-generation alloys, has extensive applications in lightweight aerospace structures. In this paper, anisotropy mechanical properties and microstructure evolution alloy sheets were investigated under a strain rate 0.01, 0.1, 1 s−1 temperature 440 500 °C. Experimental results showed that hot tensile sheet exhibited strong dependence on loadin...

Journal: :PÄDI boletín científico de ciencias básicas e ingenierías del ICBI 2021

La necesidad del aprovechamiento óptimo de los recursos ha incrementado el interés estudiar otras fuentes fibras celulósicas para emplear en una gran variedad aplicaciones. Este artículo se enfoca la extracción celulosa hoja maíz (Zea mays) mediante dos procedimientos experimentales: ácido y etanosolv. caracterización realizó por espectroscopia infrarroja (FT-IR) difracción rayos X (DRX). Los e...

2002
Lorenza Nisticò Gabriele Giorgi Mara Giordano Andrea Galgani Antonio Petrone Sandra D’Alfonso Massimo Federici Umberto Di Mario Paolo Pozzilli Raffaella Buzzetti Isabella Cascino

Type 1 diabetes is caused by the immune-mediated destruction of the insulin-secreting pancreatic -cells, which is under polygenic control. Several putative diabetes loci have been sorted by whole genome–linkage analyses (1–2) or by directly testing an a priori hypothesis on selected genes or genomic regions (3–4). Linkage with chromosome 5q33–34 was recently detected in 249 sib-pairs from 187 B...

Journal: :Boletín del Museo Chileno de Arte Precolombino 2021

Se presenta la caracterización de 1088 cuentas provenientes colecciones museos y recolecciones campo del norte Salta, Argentina. identificaron confeccionadas sobre toba, pizarra, vidrio, material malacológico minerales. Para 27 ellas se usó meb-edx drx, registrándose turquesa, sodalita ópalo, modificaron sus clasificaciones previas a partir datos geoquímicos observación macroscópica. Fi...

Journal: :Acta Materialia 2023

A number of recent studies have investigated deformation behavior CoCrFeMnNi (Cantor) alloy at elevated temperatures by using plastic to relatively small strains such as tensile testing. Therefore, little has been known about the this typical FCC high-entropy (HEA) in case that material is subjected ultra-high various temperatures. In present study, equi-atomic HEA was successfully deformed ove...

Journal: :Medical physics 2012
Marco Bertolini Andrea Nitrosi Stefano Rivetti Nico Lanconelli Pierpaolo Pattacini Vladimiro Ginocchi Mauro Iori

PURPOSE The purpose of this study is to compare digital radiography systems using the metric effective detective quantum efficiency (eDQE), which better reflects digital radiography imaging system performance under clinical operating conditions, in comparison with conventional metrics such as modulation transfer function (MTF), normalized noise power spectra (NNPS), and detective quantum effici...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید