نتایج جستجو برای: rmse2and r2 error measurement

تعداد نتایج: 697402  

2001
Tomohiko Uyematsu

|Universal coding problem for the system of Slepian and Wolf (the SW-system) has rst been investigated by Csisz ar and Korner. They considered the correlated memoryless sources, and established a universally attainable error exponent as a function of rate pair (R1;R2) that is positive whenever (R1; R2) is an inner point of the admissible rate region of the SW-system, which is speci ed dependin...

Journal: :Journal of the American Chemical Society 2005
Yong Zhang Haihong Sun Eric Oldfield

We have used density functional theory methods to investigate the solid-state "magic-angle" spinning (MAS) NMR and single-crystal NMR/ENDOR spectra of paramagnetic organometallic complexes and metalloporphyrins. The solid-state MAS NMR chemical shifts (including both diamagnetic and hyperfine contributions) are predicted with a slope of 1.007 and an R2 = 0.967, corresponding to a 28 ppm (or 6.3...

2017
A. Vautier T. Pieper T. Lhommeau H. Petersen M. Christensen

Most of the NIR spectrometers available are not suited for on line measurements in slaughterhouses. The aim of the study was to test the ability of a device dedicated to industrial measurement (NitFom, Frontmatec) for prediction of drip loss and ultimate pH. A calibration model fitting was satisfactory (drip loss, R2=0.59 and pHu, R2=0.70) and the prediction accuracy levels for drip loss were s...

2005
John C. Wood Cathleen Enriquez Nilesh Ghugre J. Michael Tyzka Susan Carson Marvin D. Nelson Thomas D. Coates

Measurements of hepatic iron concentration (HIC) are important predictors of transfusional iron burden and long-term outcome in patients with transfusiondependent anemias. The goal of this work was to develop a readily available, noninvasive method for clinical HIC measurement. The relaxation rates R2 (1/T2) and R2* (1/T2*) measured by magnetic resonance imaging (MRI) have different advantages ...

Journal: :nutrition and food sciences research 0
yasmin mossavar-rahmani department of epidemiology & population health, albert einstein college of medicine, bronx, new york,

self-reported measures of dietary intake are prone to measurement error that may obscure the relationship of diet and disease. this review addresses strategies to decrease errors during collection of dietary data and statistical approaches to deal with measurement issues once the data are collected.  examples from two us studies-- the women’s health initiative (whi) dietary modification trial a...

بختیاری, مرتضی, حمیدی ابرقویی, زهره, ریاحی عالم, نادر, سرکار, سعید , شاکری, ناصر, عقابیان, محمدعلی, قاسم زاده, علی, قناعتی, حسین, لاریجانی, باقر,

Introduction & Objective : The aim of this study was to optimize MRI conventional protocols for BMD(Bone Mineral Density) measurements using MRI Relaxometry in systems not facilitated with special multi echo protocols. Since, cortical and trabecular bone separation can not be performed in DEXA, so the results might lead to erroneous interpretation of BMD values. One method for bone quality dete...

2007
X. Yin A. C. Larson

Introduction R2* measurements have proven useful for a number of abdominal imaging applications [1, 2]. The commonly used multiple-GRE (MGRE) sequence collects a train of echoes after each excitation thereby permitting the reconstruction of separate images at each TE and subsequent derivation of R2* maps. However, spatial resolution and overall volumetric coverage often remains limited due to b...

2015
Aine Marie Gormley-Gallagher Richard William Douglas Brian Rippey Liping Zhu

Separate phases of metal partitioning behaviour in freshwater lakes that receive varying degrees of atmospheric contamination and have low concentrations of suspended solids were investigated to determine the applicability of the distribution coefficient, KD. Concentrations of Pb, Ni, Co, Cu, Cd, Cr, Hg and Mn were determined using a combination of filtration methods, bulk sample collection and...

Journal: :Journal of applied physiology 2004
Khaled F Mansour James A Rowley M Safwan Badr

We have shown that a polynomial equation, FP = AP3 + BP2 + CP + D, where F is flow and P is pressure, can accurately determine the presence of inspiratory flow limitation (IFL). This equation requires the invasive measurement of supraglottic pressure. We hypothesized that a modification of the equation that substitutes time for pressure would be accurate for the detection of IFL and allow for t...

Journal: :Journal of biomolecular NMR 2013
Seho Kim Kuen-Phon Wu Jean Baum

Unprotected amide protons can undergo fast hydrogen exchange (HX) with protons from the solvent. Generally, NMR experiments using the out-and-back coherence transfer with amide proton detection are affected by fast HX and result in reduced signal intensity. When one of these experiments, (1)H-(15)N HSQC, is used to measure the (15)N transverse relaxation rate (R2), the measured R2 rate is convo...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید