in this paper different channels of pomegranate marketing in lorestan province are identified and the economic evaluation of these path ways is discussed. for this purpose, the different marketing margins, the share of marketing agents of final price of product, marketing cost coefficient and marketing efficiency in each channel was calculated. the necessary cross-sectional data and information...

A program for computing pure angular momentum coefficients in relativistic atomic structure for any scalar one– and two–particle operator is presented. The program, written in Fortran 90/95 and based on techniques of second quantization, irreducible tensorial operators, quasispin and the theory of angular momentum, is intended to replace existing angular coefficient modules from GRASP92. The ne...

iran isone of the main pistachiogrowersinthe world. kerman province is the largest grower of pistachio and sirjan is one of the most important pistachio production areas of kerman province. it is important to the study of efficiency status of pistachio growers and improvetheir efficiency and optimum use of resources in the production. the purpose of this study was to determinationtechnical effi...

Design of a multi-stage depressed collector for efficient operation of a Free Electron Laser (FEL) oscillator requires knowledge of the electron beam energy distribution. This knowledge is necessary to determine the voltages of the depressed collector electrodes that optimize the collection efficiency and overall energy conversion efficiency of the FEL. The energy spread in the electron beam is...

We investigated sex-related photosynthetic responses to drought in the dioecious species, Populus cathayana Rehd. Plants were subjected to two watering regimes (100% and 30% of field capacity) in a semi-controlled environment. Drought significantly decreased leaf area (LA), total number of leaves (TNL), specific leaf area (SLA), relative water content, net photosynthetic rate (P(n)), transpirat...

The single-index varying-coefficient models include many types of popular semiparametric models, i.e. single-index models, partially linear models, varying-coefficient models, and so on. In this paper, we first establish the semiparametric efficiency bound for the single-index varying-coefficient model, and develop an estimation method based on the efficient estimating equations. Although our m...