همهاخبارمکان‌یابراهنمای خریدتصاویرویدیومقالات علمی
درباره برتیناتماس با ماهوش مصنوعی رایگانایمیل رایگانمترجم رایگانDNS رایگانهواشناسیکاوش برتیناتبلیغ در برتینا
درباره سرچحریم خصوصیشرایط

برتینا (فناوری پیشرفته پارسیان) شرکت دانش‌بنیان حوزه هوش مصنوعی

ieeexplore.ieee.org/abstract/document/4585997/

A 0.7-V 100-dB 870-μW digital audio ΣΔ modulator

H Park, KY Nam, DK Su, K Vleugels… - 2008 IEEE Symposium …, 2008 - ieeexplore.ieee.org
۴۹ ارجاع2008

A high-precision, low-voltage, low-power ΣΔ modulator has been designed using a delayed input feedforward architecture and a tracking multi-bit quantizer employing a single …

www.sciencedirect.com/science/article/pii/S0370157320302477PDF

The landscape of QCD axion models

L Di Luzio, M Giannotti, E Nardi, L Visinelli - Physics Reports, 2020 - Elsevier
۱۱۷۷ ارجاع2020

We review the landscape of QCD axion models. Theoretical constructions that extend the window for the axion mass and couplings beyond conventional regions are highlighted and …

iopscience.iop.org/article/10.1088/1757-899X/870/1/012049/metaPDF

Efficient energy of smart grid education models for modern electric power system engineering in Iraq

FT Abed, HTS ALRikabi, IA Ibrahim - IOP Conference Series …, 2020 - iopscience.iop.org
۴۸ ارجاع2020

Smart grid integrates the use of high end technologies so that the generation of energy as well as its delivery can be done with greater performance to the multiple locations and regions…

www.sciencedirect.com/science/article/pii/S0021967399010213

Determination of eight water-and fat-soluble vitamins in multi-vitamin pharmaceutical formulations by high-performance liquid chromatography

P Moreno, V Salvado - Journal of chromatography A, 2000 - Elsevier
۴۲۶ ارجاع2000

In the present work, a reversed-phase high-performance liquid chromatographic procedure has been developed for the determination of water-soluble vitamins (thiamine hydrochloride, …

iopscience.iop.org/article/10.3847/2041-8213/aaf96b/metaPDF

The optical afterglow of GW170817 at one year post-merger

GP Lamb, JD Lyman, AJ Levan… - The Astrophysical …, 2019 - iopscience.iop.org
۲۱۷ ارجاع2019

We present observations of the optical afterglow of GRB 170817A, made by the Hubble Space Telescope, between 2018 February and August, up to one year after the neutron star …

www.sciencedirect.com/science/article/pii/S1570023208004376PDF

Automated GC–MS analysis of free amino acids in biological fluids

H Kaspar, K Dettmer, W Gronwald, PJ Oefner - Journal of Chromatography …, 2008 - Elsevier
۲۵۱ ارجاع2008

A gas chromatography–mass spectrometry (GC–MS) method was developed for the quantitative analysis of free amino acids as their propyl chloroformate derivatives in biological fluids. …

www.sciencedirect.com/science/article/pii/S0048969723005089PDF

The factors influencing the vertical transport of microplastics in marine environment: A review

J Li, E Shan, J Zhao, J Teng, Q Wang - Science of the Total Environment, 2023 - Elsevier
۲۲۵ ارجاع2023

There have been numerous studies that have identified the presence of low-density microplastics (MPs) in the water column and sediments. The focus of current MPs research has …

iopscience.iop.org/article/10.3847/1538-4357/aaf16f/metaPDF

Observations of an electron diffusion region in symmetric reconnection with weak guide field

M Zhou, XH Deng, ZH Zhong, Y Pang… - The Astrophysical …, 2019 - iopscience.iop.org
۱۳۱ ارجاع2019

The Magnetospheric Multiscale spacecraft encountered an electron diffusion region (EDR) in a symmetric reconnection in the Earth’s magnetotail. The EDR contained a guide field of …

nyaspubs.onlinelibrary.wiley.com/doi/abs/10.1111/j.1749-6632.1999.tb08870.x

The distribution of rates of spontaneous mutation over viruses, prokaryotes, and eukaryotes

JW Drake - Annals of the new York Academy of Sciences, 1999 - Wiley Online Library
۲۷۵ ارجاع1999

Although mutation has chaotic aspects, spontaneous mutation rates assume certain characteristic values when expressed per genome per genome duplication. The rate among lytic …

royalsocietypublishing.org/doi/abs/10.1098/rspa.1935.0104PDF

On the instability of a cylindrical thread of a viscous liquid surrounded by another viscous fluid

S Tomotika - Proceedings of the Royal Society of London …, 1935 - royalsocietypublishing.org
۱۶۴۰ ارجاع1935
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