in this work, time domain analysis is used to solve adler’s equation in order to obtain the required time, for an oscillator under external injection, reaching the steady-state condition. mathematical approach has been applied to fully describe the transient of frequency acquisition in injection-locked lc and ring oscillators considering their time-varying nature. then, the analysis is verified...

the sales proceeds are the most important factors for keeping alive profitable companies. so sales and budget sales are considered as important parameters influencing all other decision variables in an organization. therefore, poor forecasting can lead to great loses in organization caused by inaccurate and non-comprehensive production and human resource planning. in this research a coherent so...

priority queues have a great importance in the study of computer communication networks in which different types of traffic require different quality of service standards. the discrete-time non-preemptive priority queuing model with priority jumps is proposed in this paper. on the basis of probability generating functions mean system contents and mean queuing delay characteristics are obtained....

a comparative study on the effect of erythromycin and ivermectin on abomasal emptying in holstein-friesian calves motilides namely erythromycin have a great ability to increase abomasal emptying rate. the aim of this study was to evaluate the abomasal emptying rate in calves receiving either erythromycin or ivermectin. five male holstein-friesian calves were given each of the following 4 treatm...

sloshing is a well-known phenomenon in liquid storage tanks subjected to base or body motions. in recent years the use of multiple vertical baffles for reducing the sloshing effects in tanks subjected to earthquake has not been taken into consideration so much. on the other hand, although some of the existing computer programs are capable to model sloshing phenomenon with acceptable accuracy, t...

background : the present study aimed to provide better insight on methodological issues related to time preference studies, and to estimate private and social discount rates, using a rigorous systematic review and meta-analysis. methods : we searched pubmed, embase and proquest databases in june 2013. all studies had estimated private and social time preference rates for health outcomes through...

Poly(ADP-ribosyl)ation is a post-translational modification of proteins in which ADP-ribose units are sequentially transferred from the substrate NAD+ to acceptor proteins on glutamate, aspartate or lysine residues. The enzymes that catalyse this process are commonly called poly(ADP-ribose) polymerases or PARPs. In human, 17 proteins have been gathered in the PARP superfamily, based on their se...

BACKGROUND Plantar pressure assessment can provide information pertaining to the dynamic loading of the foot, as well as information specific to each region in contact with the ground. There have been few studies which have considered the reliability of plantar pressure data and therefore the purpose of this study was to investigate the reliability of assessing plantar pressure variables in a g...

biostratigraphy of bahram formation succession, with 359.8 meter thickness, in the sardar section (north of kerman, central iran) is done in this study. bahram formation is mostly composed of limestones (with a lesser amount of sandstones), and conformably overlies the top sandstone beds of the padeha formation. but, the upper boundary with the hutk formation (late tounaisian) is disconformable...