the speech enhancement techniques are often employed to improve the quality and intelligibility of the noisy speech signals. this paper discusses a novel technique for speech enhancement which is based on singular value decomposition. this implementation utilizes a genetic algorithm based optimization method for reducing the effects of environmental noises from the singular vectors as well as t...

background: participation of nurses in research studies is a requirement of achieving evidence-based nursing, but studies in this regard are limited. this study aimed to determine the viewpoints of nurses regarding the facilitating factors and obstacles of participating in research and utilization of its results in clinical practice. methods: this descriptive study was done in 2013 at teaching ...

in this paper, we consider the construction of a new class ofnumerical methods based on the backward differentiation formulas(bdfs) that be equipped by including two off--step points. werepresent these methods from general linear methods (glms) pointof view which provides an easy process to improve their stabilityproperties and implementation in a variable stepsize mode. thesesuperiorities are ...

designing of a pid controller is a very common method for industrial process control and due to its very simple and efficient function; it is used in a wide variety of industrial applications. pid controller to reduce the steady state error and dynamic response of the system is used. pid controller design is an inevitable problem in setting the coefficients need to try a lot of trial and error,...

One of the important parts technology industrial milk production is organization feeding dairy cows, as in cost costs reach 70%. To determine effectiveness introduction new approaches to it necessary conduct a more detailed analysis – not only impact on productivity, but also take into account economic component. Obtaining high yields impossible due unbalanced rations, poor quality feed and imp...

Purpose: This article aims to observe and measure how modern innovative blockchain technology improves the data quality transparency thus affect stock prices of publicly traded companies after announcing its implementation in their operations. Additionally, objective is compare results with control group non-adopters. Methodology/Approach: We selected 30 public across various sectors, obtained ...

Developing realistic models for the evaluation of sustainable supply chains has turned into a major challenge facing managers. The decision-making approaches proposed here consist of two stages. At the first stage, a dynamic-network data envelopment analysis (DNDEA) model is established for the first time, wherein the current efficiency of a business can be influenced by its prior social and en...