نتایج جستجو برای: قضیه epr

تعداد نتایج: 12280  

2010
A. V. Fionov Anders Lund Weimin Chen N. N. Rozhkova Irina Buyanova

Dispersed detonation nanodiamonds have been studied by continuous-wave (CW) and pulse EPR techniques. The spectrum of bulk radicals (g = 2.0025 ± 0.0002, a Lorentz line shape with ΔHpp = 0.95 ± 0.05 mT) dominated in CW EPR and prevented to record spectra from other paramagnetic species. The pulse EPR spectrum was the superposition of the distorted P1-center spectrum with parameters (g = 2.0025,...

Journal: :Drug discovery today 2006
Arun K Iyer Greish Khaled Jun Fang Hiroshi Maeda

Of the tumor targeting strategies, the enhanced permeability and retention (EPR) effect of macromolecules is a key mechanism for solid tumor targeting, and considered a gold standard for novel drug design. In this review, we discuss various endogenous factors that can positively impact the EPR effect in tumor tissues. Further, we discuss ways to augment the EPR effect by use of exogenous agents...

Nanoparticles of Mn0.5Zn0.5-xCdxFe2O4 with x varying from x = 0.0 to 0.3 were prepared by wet chemical co-precipitation method. The structural and magnetic properties were studied by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM) and Electron Paramagnetic Resonance (EPR) technique. ...

گسیختگی مراکز دفن زباله در سال‌های اخیر سبب اهمیّت بررسی رفتار زباله‌ها گردیده است. زباله‌ها به عنوان اصلی‌ترین عنصر تشکیل‌دهنده در لندفیل‌ها دارای عملکرد پیچیده‌ای می‌باشند. در این تحقیق با استفاده از نتایج انجام آزمایش‌های برش مستقیم بزرگ مقیاس در ابعاد 150*300*300 میلی‌متر بر روی زباله‌های با سنین تازه و سه ماهه، 2 مدل جهت پیش‌بینی رفتار زباله‌ها ارائه شده است. هدف از این تحقیق نیز پیش‌بینی ر...

Nanoparticles of Mn0.5Zn0.5-xCdxFe2O4 with x varying from x = 0.0 to 0.3 were prepared by wet chemical co-precipitation method. The structural and magnetic properties were studied by using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM) and Electron Paramagnetic Resonance (EPR) technique. ...

Journal: Polyolefins Journal 2021

Organocatalysts have attracted enormous interest in the water-crosslinking reaction in silane-grafted polyolefins (SGPOs) system owing to their simplicity, low toxicity and environmentally benign nature compared to organotin catalysts, which are most used in SGPOs system. We focus on organophosphorus compounds including four structure types as organocatalysts; phosphoric acids, phosphoric ester...

ژورنال: پزشکی قانونی 2021

the development of new technology and modern equipment has led to the development of telemedicine systems. As a result, there are dangers such as publishing patient information and intentionally or unintentionally, medical information. The forensic organization, as one of the powerful arms of the judiciary, pursues important cases in the medical and psychiatric commissions to take steps to rea...

Journal: :The journal of physical chemistry. B 2007
Oleg Y Grinberg Benjamin B Williams Andres E Ruuge Stalina A Grinberg Dean E Wilcox Harold M Swartz Jack H Freed

Charcoals prepared from certain tropical woods contain stable paramagnetic centers, and these have been characterized by EPR spectroscopy in the absence and presence of oxygen. The EPR-detectable spin density has been determined, as has been the temperature- and frequency-dependence of the oxygen broadening of the EPR signal, which is orders of magnitude larger than that observed with other mat...

2006
Jesper Simonsen Morten Hertzum

One of the five regions in Denmark has initiated a remarkable and alternative strategy for the development of Electronic Patient Record (EPR) systems. This strategy is driven by Participatory Design (PD) experiments and based on evidence of positive effects on the clinical practice when using EPR systems. We present this PD strategy and our related research on evidence-based IT development. We ...

Journal: :Journal of magnetic resonance 2011
Mark Tseitlin Richard W Quine Sandra S Eaton Gareth R Eaton Howard J Halpern J-H Ardenkjaer-Larsen

The Frank polyphase sequence has been applied to pulsed EPR of triarylmethyl radicals at 25 6 MHz (9.1 mT magnetic field), using 256 phase pulses. In EPR, as in NMR, use of a Frank sequence of phase steps permits pulsed FID signal acquisition with very low power microwave/RF pulses (ca. 1.5 mW in the application reported here) relative to standard pulsed EPR. A 0.2 mM aqueous solution of a tria...

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