Transportation noise contains significant low frequency components. It is difficult to sound insulate buildings against transportation noise because wall cavities are only effective in increasing sound insulation above the mass-air-mass resonance frequency. Stud walls can also have a significant structural resonance in this low frequency range, although it is not yet clear if this is significan...

This doctoral thesis presents new results within modeling analysis and observer design for various types of nonlinear oscillating systems A nonlinear model of a cylinder gyroscope is proposed Through perturbation analysis and simulation the model is shown to be in good agreement with exper imental results Passivity properties and observer design of nonlinear oscillating systems are stud ied and...

Functional gastrointestinal (GI) disorders are collections of symptoms attributable to the GI tract in the absence of mucosal, structural, or biochemical disease. Two of the most common disorders, chronic constipation and irritable bowel syndrome (IBS), have common etiopathogenetic features—notably psychosocial disturbances, dysmotility, and heightened sensitivity. In some patients with IBS, th...

Introduction The dog was probably the first species domesticated by man and has maintained a special place in human affections ever since. The enormous range of phenotypic diversity exhibited by different dog breeds led Darwin to conclude that they could not all have originated from a single recent ancestral species. In fact, recent molecular data demonstrates that all dog breeds are derived fr...

Sponsorship is very important for the sustainable development of sports, and motivation sponsors will have an impact on consumers’ willingness to buy products sports sponsors. This paper takes China’s CBA sponsors, TCL Corporation Li Ning Corporation, as examples conduct empirical stud. Structural equation model, regression analysis, correlation analysis are used in our study. The results show ...