We consider the problem of exact controllability of the wave equation with Dirichlet boundary conditions and multiplicative controls. A multiplicative control is a coeffi cient like uy. Exact controllability result is stated and proved for some particular targets.

Noodle cooking quality is an important aspect in assessing processing quality of Chinese fresh noodles. Forty-six Chinese wheat cultivars and advanced lines from the Northern Plain and the Yellow and Huai River Valleys Winter Wheat Regions were used to determine the relationship between wheat quality characters and evaluation parameters of Chinese fresh noodle cooking quality, including total o...

Dual-energy X-ray computed tomography (DECT) is a powerful tool for non-destructive evaluation for security. In security applications where DECT is used for scanning checked luggage, many different materials may be scanned in various degrees of clutter and metal objects are common. Conventionally, fi ltered back-projection (FBP) is used for image formation and there is no unifi ed treatment of ...

Osmotic drying is a process of partial removal of water by submersing fruits in sucrose solution. Th e goal of this paper is to examine kinetic features of osmotic drying of apricot halves in sucrose solution. For osmotic drying of apricot halves in a thick immovable layer, a planned experiment was conducted. Experimental results were used to create an empirical model of osmotic drying kinetics...

Background: Strength, muscular endurance, and fl exibility are important components of healthy back function. This study determined the reliability and evaluated the validity of selected low back fi eld tests (FITNESSGRAM® Trunk Extension [FG-TE] and Box 90° Dynamic Trunk Extension [B-90° DTE]) when compared to laboratory tests (Parallel Roman Chair Dynamic Trunk Extension [PRC-DTE], Parallel R...

Th e purpose of the present study was to investigate the reliability and validity of the Turkish version of the Tromso Social Intelligence Scale (TSIS) developed by Silvera, Martinussen, and Dahl (2001). 719 students from Sakarya University participated in the study. Construct validity and criterion related validity and reliability were assessed. Factor analysis for Turkish university students ...

This paper studies inference about the values of the parameters in the threshold model in a generalized method of moments (GMM) framework. First, we establish that the extensively studied least squares method leads to substantially oversized tests and confidence intervals when the coeffi cient change is not large. Second, by re-ordering the data to recast the threshold model as a structural bre...

Snow scavenging of sub-micrometre aerosol particles is poorly known, even though it is an important aerosol removal mechanism in the polar and mountainous regions as well as in the upper troposphere and in mid-latitudes in winter. In our study, snow scavenging coeffi cients were calculated using four years of particle number concentration spectra measurements together with meteorological measur...

Introduction: Myostatin regulates skeletal muscle mass and adipogenesis, but serum response to continuous and discontinuous exercises training it has not been studied in menopause and menstrual groups of women. The purpose of this study was to investigate the serum response of myostatin, insulin and glucose to use four different aerobic exercises training in menopause and menstrual groups of wo...

The work of Zhang et al. [18] investigates the existence of periodic solutions in a ODE model, of a three species food chain, based on a modified Leslie-Gower scheme. They consider time dependent periodic coeffi cients to model periodicity of the natural environment. Their main result is that under certain restrictions on these coeffi cients, there exists at least one periodic solution to the t...