The field-shape imperfections measured at room temperature before and after thermal cycling and excitation up to maximum field in three 10 m-long models of the LHC dipole are presented. A systematic variation is observed in the normal sextupole and decapole components. The variation of the other components turns out to be negligible or to randomly vary (as for normal and skew quadrupoles). We s...

second order advantage of excitation-emission fluorescence matrix was applied for the simultaneous determination of ibuprofen and caffeine. the proposed method is based on the measurement of the native fluorescence and recording emission spectra of ibuprofen and caffeine in different excitation wavelengths. the mixture of these compounds was resolved by multivariate curve resolution coupled wit...

We propose a new configuration for a fully metal coated scanning near field (SNOM) probe based on asymmetric corrugations in the metal coating. The variation in the metal surface induces coupling mechanisms leading to the creation of a localized hot spot under linearly polarized excitation. Field localization is an effect of paramount importance for resolution but cannot be achieved with standa...

We consider an atom in interaction with a massless scalar quantum field. We discuss the structure of the rate of variation of the atomic energy for an arbitrary stationary motion of the atom through the quantum vacuum. Our main intention is to identify and to analyze quantitatively the distinct contributions of vacuum fluctuations and radiation reaction to the spontaneous excitation of a unifor...

We developed an integrated monochromatic excitation light source integrating sphere based detection system to accurately characterize the absolute photoluminescence quantum efficiency of commonly used polymer light emitting films without using a reference sample. Our methodology is similar to the method reported by de Mello et al. [Adv. Mater. 9, 230 (1997)] In this Note, we show that the absol...

This paper presents a simplified generator model for use in dynamic studies of electric power systems. The proposed model captures important characteristics of generators that include voltage and frequency variation as well as excitation limits. The behavior of the model is compared to that of a well-accepted higher order model through application to an example two-bus power system. Examination...

An imaging spectrograph equipped with a CCD detector was employed to measure two-dimensional emission images from a glow discharge plasma in atomic emission spectrometry. The emission images at Zn I 334.50 nm for a zinc sample and at Cu I 324.75 nm for a copper sample could be obtained. Their emission intensities were not uniform in the radial direction of the plasma region but became weaker at...

A model for the even-odd effect in fission based on statistical mechanics is presented. It reveals that the variation of the even-odd effect with the mass of the fissioning nucleus and the increase towards asymmetric splits is due to the important statistical weight of configurations where the light fission fragment populates the ground state of an eveneven nucleus. This implies that excitation...

TASAKI, ICHIJI, IRWIN SINGER, AND AKIRA WATANABE. Excitation of squid giant axons in sodium-free external media. Am. J. Physiol, 2 I I (3) : 746-754. rg66.-Studies of membrane impedance and potential variation were made on squid giant axons under sodium-free external conditions. Intracellular perfusion by the double-cannulation method was employed. It was found that with favorable internal cond...

The weak localization effect on a linear absorption spectrum is investigated for disordered s-wave superconductors. vertex correction incorporated into the response function in way that consistent with to one-particle spectrum. of interactions between electrons enhanced by their diffusive motion makes major contribution term. Numerical calculations show suppresses excitation across gap greater ...