Nuclear quadrupole resonance (NQR) spectroscopy is an accurate method for determination of electric charge distribution around quadrupolar nuclei. Using ab initio computational methods, it is possible to calculate the Nuclear Quadrupole Coupling Constants (NQCCs) with high accuracy and obtain the useful structural information by using these parameters. Sodium Borohydride, NaBH4, is a metal hydr...

We review recent analytical work on mirroring and mimicking behavior of resonance profiles in diffent partial cross sections. This work is related to the work of Fano and Cooper on resonance profiles in total cross sections and that of Starace on resonance profles in partial cross sections. Applications of the new theories (describing mirroring and mimicking behavior) to recent experimental mea...

In structure determination by X-ray crystallography and solution NMR spectroscopy, experimental data are collected as time and ensemble-averages. Thus, in principle, appropriate time and ensemble-averaged models should be used. Refinement of an ensemble of conformers rather than one single structure against the experimental NMR data could, however, result in overfitting the data because of the ...

This paper describes a method for the enhancement of curvilinear structures such as vessels and bronchi in three-dimensional (3-D) medical images. A 3-D line enhancement filter is developed with the aim of discriminating line structures from other structures and recovering line structures of various widths. The 3-D line filter is based on a combination of the eigenvalues of the 3-D Hessian matr...

NDE of airspace sandwich structures is often performed using a simple resonant transducer sensing the information in the frequency domain obtained due to the constructive and destructive interference of elastic waves. Application field of ultrasonic narrowband ultrasonic spectroscopy (NBUS) is likely to increase rapidly with the growing application of layered structures in modern aircraft, for ...

This paper describes a method for the enhancement of curvilinear structures such as vessels and bronchi in 3D medical images. A 3D line enhancement lter is developed with the aim of discriminating line structures from other structures and recovering line structures of various widths. The 3D line lter is based on a combination of the eigenvalues of the 3D Hessian matrix. Multi-scale integration ...

PURPOSE To verify the speech therapy aspects of the stomatognathic system, including phonoarticulatory structures (lips, tongue, and soft palate) and swallowing, respiratory, speech, and phonation (vocal quality and resonance) functions, before and after undergoing adenotonsillectomy. METHODS The study included 22 children, 17 males and 5 females, aged between 5 and 10 years, suffering from h...

The status of molecular ion spectroscopy was elegantly reviewed by Dr. G. H. Herzberg in his Faraday Lecture to the Chemical Society [1] in September of 1971. As of that time thirty-three diatomic ions and six polyatomic ions had been studied by spectroscopic methods. All of these had been observed by absorption or emission in the visible region of the spectrum, except for H1; it had become the...

The founder of the theory of resonance in structural chemistry Linus Pauling established the importance of resonance patterns in organization of living systems. Any living organism is a great chorus of coordinated oscillatory processes. From the formal point of view, biological organism is an oscillatory system with a great number of degrees of freedom. Such systems are studied in the theory of...