in this research, gold nanoparticles were synthesized and functionalized by the antibody of aflatoxins. the quenching of the fluorescence of excitation emission matrices (eem) of two type of aflatoxins (b1, g1), provoked by the gold nanoparticles, was studied by principal component analysis (pca) and multivariate curve resolution with alternating least squares (mcr-als). these aflatoxins show q...

magnetorheological (mr) dampers have the advantage of being tuned by low voltages. this has attracted many researchers to develop semi-active control of structures in theory and practice. most of the control strategies first obtain the desired forces of dampers without taking their dynamics into consideration and then determine the input voltages according to those forces. as a result, these st...

Rubber engine mounts are commonly used to provide vibration attenuation. The loss factor and dynamic stiffness of engine mount provide fundamental information of the energy dissipation. The objectives of this work are to study the frequency-dependant stiffness and loss factor of engine rubber mount and to determine the effect of the orientation angle of the engine mount on the dynamic character...

The dynamic response transfer rate function (TRF) is increasingly used in the field of structural modal parameter identification because it does not depend on white noise assumption excitation. In this paper, interference periodic excitation using TRF analyzed theoretically for a class civil engineering structures with obvious components excitation, and then an method real parameters proposed. ...

Excitation and charge transfer cross sections for collisions of protons with hydrogen are calculated by direct solution of the time-dependent Schrödinger equation on a three-dimensional Cartesian lattice. The 2s , 2p , 3s , 3p , and 3d excitation cross sections and the 1s , 2s , 2p , 3s , 3p , and 3d charge transfer cross sections from the 1s ground state at 10-, 40-, and 100-keV incident proto...

Multi-quantum well Si/Ge nanowires (NWs) were realized by combining molecular beam epitaxy deposition and metal-assisted wet etching, which is a low-cost technique for the synthesis of extremely dense (about 1011 cm-2) arrays of NWs with a high and controllable aspect ratio. In particular, we prepared ultrathin Si/Ge NWs having a mean diameter of about 8 nm and lengths spanning from 1.0 to 2.7 ...

Multilayered Zn–Se–Te structures grown by migration enhanced epitaxy are studied by temperatureand excitation-dependent photoluminescence (PL) as well as magneto-PL. The PL consists of two bands: a blue band, overlaid with band edge sharp lines, dominant at low temperatures and high excitation, and a green band, which appears at elevated temperature and low excitation. Upon varying excitation i...

This paper discusses the derivation of the best related linear dynamic system approximation to a tractorsprayer combination and a parametric model for the related linear dynamic system is identified. It will be of interest to check the degree of non-linearity in order to consider the validity of linear dynamic models. A simple method has been utilised based on the kernel idea of well-chosen per...

Improving the spatial resolution in optical microscopes is a challenging task for many applications. In fluorescence confocal microscopy, the resolution is given by the Detection Efficiency Function (DEF) resulting from the product of the Excitation Efficiency Function (EEF) by the Collection Efficiency Function (CEF). The focalisation of the pump laser beam by a high numerical aperture objecti...