Search results for "best"

Comparing Alternative Algorithms to Analyze the Beerkan Infiltration Experiment

2014

The increasing interest in the Beerkan Estimation of Soil Transfer parameters (BEST) procedure of soil hydraulic characterization justifies an assessment of alternative methods to analyze infiltration data. The BEST-slope and BEST-intercept algorithms allow estimation of soil sorptivity, S, and saturated soil hydraulic conductivity, Ks, using the transient part of the experimental infiltration curve and the slope and the intercept, respectively, of the linear portion of this curve. With reference to 401 runs performed in Sicily (Italy) and Burundi, this investigation showed that these two algorithms differed by the number of successful runs (positive S and Ks values), with BEST-intercept yi…

INVESTIGATIONS ON INFILTRATION METHODS FOR AN IMPROVED SOIL HYDRAULIC CHARACTERIZATION

2020

Determining hydraulic properties of a loam soil by alternative infiltrometer techniques

2015

Testing infiltrometer techniques to determine soil hydraulic properties is necessary for specific soils. For a loam soil, the water retention and hydraulic conductivity predicted by the BEST (Beerkan Estimation of Soil Transfer parameters) procedure of soil hydraulic characterization was compared with data collected by more standard laboratory and field techniques. Six infiltrometer techniques were also compared in terms of saturated soil hydraulic conductivity, Ks. BEST yielded water retention values statistically similar to those obtained in the laboratory and Ks values practically coinciding with those determined in the field with the pressure infiltrometer (PI). The unsaturated soil hyd…

DETERMINING THE SATURATED HYDRAULIC CONDUCTVITY OF A LOAM SOIL WITH DIFFERENT INFILTROMETER TECHNIQUES

2015

The saturated soil hydraulic conductivity, Ks, is one of the most important soil hydraulic properties since it controls many hydrological processes. This hydrodynamic parameter depends on soil texture and structure and it is very difficult to measure. Infiltrometer techniques are becoming very popular to determine Ks in the field but testing alternative approaches is necessary for specific soil types. For a loam soil, the estimated Ks values with six infiltrometer techniques were compared. The so-called BEST procedure of soil hydraulic characterization, the pressure infiltrometer (PI), single head experiments with both the tension infiltrometer (TI) and the mini disk infiltrometer (MDI), th…

Board Evaluation in Italian Listed Companies

2016

In the last decade performance evaluation of the Board of Directors has become a best practice at national and international level. Italy is an interesting area of analysis given the high concentration of ownership that characterizes companies, including listed companies. In this context the choices of governance that affect the level of disclosure, for which the expectation is to have a low level of disclosure on the practice of BE (Board Evaluation).The first purpose of this paper is to present a resume on the state of the art in terms of BE for Italian listed companies at 31st December 2012, in terms of presence/absence of the practice of disclosure and its more or less extensive disclos…

Service Regulations, Input Prices and Export Volumes: Evidence from a Panel of Manufacturing Firms

2017

Using a panel of firm‐level data from Spanish manufacturers, this study shows that better service regulation reduces the price of intermediate inputs paid by downstream firms. The beneficial cost effects of services reforms extend to both large and small‐to‐medium sized corporations (SME’s), but the former tend to enjoy greater gains. This feature also manifests itself in international markets. We find evidence of an input cost channel through which service regulations affect the volume of exports of large manufacturers, while the evidence of such a channel is weaker for SME’s. Our estimates indicate that, from 1991 to 2007, large firms increased their volume of exports by an average of 20 …

Succeeding in the French market:Recommendations for small businesses

2011

PurposeThe purpose of this research is make managerial recommendations for firms operating or planning to operate in the French market.Design/methodology/approachThis study reports findings from an in‐depth case study covering eight Finnish SMEs operating in the French market. To facilitate the understanding of the recommendations, the findings are discussed through typical features of the French culture.FindingsThe findings report the best practices of eight Finnish SMEs operating in France.Research limitations/implicationsAlthough the case study method made it possible to acquire detailed knowledge about the firms' internationalization, the findings can be generalized only to some extent.…

Interpretation and Chemometric Evaluation of the Bilirubin Interference in the Kinetic Spectrophotometry Determination of Creatinine in Serum by Use …

1992

Abstract SUMMARY In an alkaline picrate medium we demonstrated the occurrence of isosbestic points over the range 520–550 nm, the position depending on the bilirubin content and less on the albumin content. Bilirubin does not markedly modify the ratt constant of the reaction between creatinine and picrate, however, it does modify the intercept of the Ln ΔA vs t, plots. The absolute value of Ln ΔA varies with the concentration, though not with time, which indicates that bilirubin acts by consuming part of the initially present creatinine irrespective of its owr concentration at the wavelengths typically used in the creatinine determination. The Ln ΔA values at the isosbestic points coincide …

The Determination of the Reaction Rate for the First Step in a Consecutive Reaction A → B → C by Absorbance Measurements Using the Wavelength of the …

1977

Kinetic experiments are often followed by spectroscopic measurements in the visible or near ultraviolet region. The advantage is not only that the results can be recorded continuously, which makes very fast reactions accessible, but also that very low concentrations of substrates can be used. This means that only very small amounts are required and, more important perhaps, that reagents can be used in excess. Thus pseudomonomolecular conditions and first-order kinetics often can be achieved easily.

Managing Knowledge in Academic Libraries Are we? Should we?

2016

This article gives an overview of the field of knowledge management and suggests how this can be applied to academic libraries. A literature review has been conducted and has been subject to a critical analysis of comparison to IFLAs standard for “Continuing Professional Development: Principles and Best Practices” (IFLA, 2015). Here IFLA has identified 10 points of best practice. These 10 points will be measured against the literature in the field of knowledge management to ascertain if academic libraries would benefit from a stronger relation to knowledge management.