A method to improve l1 performance of the CS (Compressive Sampling) for signals with known spectral energy density is proposed. Instead of random sampling, the proposed method selects the location of samples to follow the distribution of the spectral energy. Samples collected from three different measurement methods; the uniform sampling, random sampling, and energy equipartition sampling, are ...

The possibility that researchers should be able to obtain data from all cases is questionable. There a need; therefore, this article provides probability and non-probability sampling. In paper we studied the differences similarities of two with approach more fritter away time, cost sufficient energy required throughout sample observed. pair shows between them, different articles were reviewed c...

According to agency theory, board of directors plays an important monitoring role in reducing information asymmetry and increasing the transparency of financial statements and social responsibility. This research is concerned with examining board diversity and social responsibility of the firms listed on the Tehran Stock Exchange during the years 2011-2015. To do so, a sample of 98 firms was se...

Sampling errors are generally believed to dominate the errors of analytical measurement during the entire environmental data acquisition process. Unfortunately, environmental sampling errors are hardly quantified and documented even though analytical errors are frequently yet improperly reported to the third decimal point in environmental analysis. There is a significant discrepancy in directly...

This paper considers the design of acoustic surveys for estimating the mean abundance of spatially correlated populations. We examined how the choice of survey design affects the bias and precision of the sample mean as an estimator of mean abundance. Further, we investigated three different ways of estimating the error variance of the sample mean: the pooled within strata variance and two geos...

as global population grows consumption by people around the world and correspondingly demand for food increase. through using a systematic method for innovation, new product development (npd) in food industry has made initial ideas to change into the salable products and services possible in the market (e.g. genetic engineered products). the research method was exploratory mixed type (qualitati...