IMPACT OF SHELTERBELTS ON GROUNDNUT PRODUCTION IN THERILANDS: A DECOMPOSITION ANALYSIS.

In areas characterized by wind erosion and shifting sand dunes, shelterbelts can increase crop yields. Groundnut yields in southern India increased with the introduction and maturation of shelterbelts. Decomposition analysis attributed most of the yield increases to the shelterbelts themselves, with a small portion attributed to input use changes. While shelterbelt cost data are scarce, the estimated value of inputs saved due to shelterbelts suggested a net benefit stream that is initially negative but increasing into the indefinite future. Public investments in shelterbelts may be the most effective means of preventing land degradation.Crop Production/Industries,

PRICE SENSITIVITIES FOR U.S. FROZEN DAIRY PRODUCTS

Price elasticities and flexibilities for a system of frozen dessert products are estimated from scanner data. Simultaneity tests reject exogeneity of conditional expenditures, but not prices or quantities, at the weekly level. Inverting the elasticity matrix to obtain flexibilities, while theoretically appropriate, appears to be empirically unacceptable.Demand and Price Analysis,

1,1′-Bis(4-fluoro­phen­yl)-3,3′-diisobutyl-4,4′-diphen­oxy-1H,1′H-4,4′-bipyrazole-5,5′(4H,4′H)-dione

In the title compound, C38H36F2N4O4, the pyrazole rings form dihedral angles of 50.02 (4) and 18.05 (4)° with their attached fluorobenzene rings, and make dihedral angles of 76.08 (4) and 73.54 (5)° with the aromatic ring of the attached phen­oxy group. In the crystal, the molecules are connected by weak C—H⋯π inter­actions

Techniques Used in Biometric Authentication - Applicability and Future Scope

In recent past, biometrics has emerged rapidly with its worldwide applications for daily living. Novel trends and new developments have been proposed to obtain and pursue many diverse biometric traits. The ignored challenge in the precedent and potential issues need to be addressed together and intensely integrated. The main objective of the paper is to keep up with the innovative technologies on some current theoretical development as well as fresh trends of biometric applications. The topics covered in this paper reflect well both aspects of development. This paper deals with the techniques used for biometric authentication and their future possibilities. This paper also focus on the applicability, strengths and weaknesses of several biometric recognition systems with a comprehensive review of the developments in this field

Information Retrieval on the World Wide Web

Effective search and retrieval are enabling technologies for realizing the full potential of the Web. The authors examine relevant issues, including methods for representing document content. They also compare available search tools and suggest methods for improving retrieval effectiveness

Honeycomb Core Permeability Under Mechanical Loads

A method for characterizing the air permeability of sandwich core materials as a function of applied shear stress was developed. The core material for the test specimens was either Hexcel HRP-3/16-8.0 and or DuPont Korex-1/8-4.5 and was nominally one-half inch thick and six inches square. The facesheets where made of Hercules' AS4/8552 graphite/epoxy (Gr/Ep) composites and were nominally 0.059-in. thick. Cytec's Metalbond 1515-3M epoxy film adhesive was used for co-curing the facesheets to the core. The permeability of the specimens during both static (tension) and dynamic (reversed and non-reversed) shear loads were measured. The permeability was measured as the rate of air flow through the core from a circular 1-in2 area of the core exposed to an air pressure of 10.0 psig. In both the static and dynamic testing, the Korex core experienced sudden increases in core permeability corresponding to a core catastrophic failure, while the URP core experienced a gradual increase in the permeability prior to core failure. The Korex core failed at lower loads than the HRP core both in the transverse and ribbon directions

5-Ethyl-4-methyl-1H-pyrazol-3(2H)-one

In the title compound, C6H10N2O, the 2,3-dihydro-1H-pyrazole ring is approximately planar, with a maximum deviation of 0.013 (1) Å. Pairs of inter­molecular N—H⋯O hydrogen bonds link neighboring mol­ecules into dimers, generating R 2 2(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by inter­molecular N—H⋯O hydrogen bonds. The crystal structure is further stabilized by C—H⋯π inter­actions