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Search Results: 1 - 10 of 12101 matches for " distribution "
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Il Vespertilio mustacchino Myotis mystacinus (Kuhl, 1817) (Chiroptera, Vespertilionidae) nuova specie per la Calabria
Dino Scaravelli,Gaetano Aloise,Massimo Bertozzi,Gianpaolo Garofalo
Hystrix : the Italian Journal of Mammalogy , 2004, DOI: 10.4404/hystrix-15.1-4329
Abstract: Myotis mystacinus (Kuhl, 1817) (Chiroptera, Vespertilionidae) new species for Calabria region, southern Italy A young male of whiskered bat Myotis mystacinus, dead the 13 July of 1995 in the building of Ecology Department, University of Calabria, in Rende (Cosenza), was found during the taxonomic revision of the bats in the Theriological Collection of "Museo di Storia Naturale della Calabria ed Orto Botanico" of the University of Calabria. This is the southern most sighting of the species in Italy. The bat checklist of the Calabria region includes now 21 species.
A Method to Simulate the Skew Normal Distribution  [PDF]
Dariush Ghorbanzadeh, Luan Jaupi, Philippe Durand
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.513201

A new method is developed to simulate the skew normal distribution. The result is interesting from a practical as well as a theoretical viewpoint. The new method is simple to program and is more efficient than the standard method of simulation by acceptance-rejection method.

The Spatial Distribution Pattern Analysis of City Infrastructure Cases of Urban Management  [PDF]
Jiwei Hou, Jianhua Liu, Siyu Li, Shiran Song, Congcong Li, Yueming Duan, Baoshan Zeng
Journal of Geoscience and Environment Protection (GEP) , 2018, DOI: 10.4236/gep.2018.612002
Abstract: The effective disposal of daily city infrastructure cases is an important issue for urban management. To more effectively utilize a large amount of historical cases data collected and accumulated in the urban grid management system, and to analyze their spatial distribution pattern information for city managers, this study used the comparative kernel density analysis method in two types of cases (i.e. power facilities and traffic guardrail) in Xicheng District, Beijing for the year 2016 and 2017. This research analyzes them at different scales (300 m, 600 m, 1,200 m), and the experiment results show that the method of comparative kernel density analysis is able to provide an intuitively spatial visualization distribution analysis of city infrastructure related cases. The quantitative information of spatial agglomeration degree is helpful for city managers making decision.
Nuclear fragmentation at 4.5 a GeV/c in 28Si with emulsion interactions  [PDF]
A. Abd El-Daiem, A. Abdel-Hafiez, M. A. Khalifa
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.35055
Abstract: The experimental results of complete charge distribution of projectile fragments (PFS) and the total charge of the projectile fragments (PFS ) are presented. Also the multiplicity distributions of (PFS) and the rapidity distribution of shower tracks produced from events with nh = 0 from 28Si with emulsion at 4.5 A GeV /c are obtained.
A Measure to Fight China’s Worsening Income Distribution  [PDF]
Hsiung Bingyuan
Chinese Studies (ChnStd) , 2013, DOI: 10.4236/chnstd.2013.22013
Abstract: China’s income distribution has worsened along with its rapid economic development. It is suggested that the government issues an ID card with a chip and store money in the chip as calculated by a formula based on tax revenues. People can use the money stored for consumption. The measure is likely to prove an effective tool in bringing about a direct and immediate improvement in income distribution.
Cadmium Distribution in Tobacco Growing Soil Fractions: Its Influence on Dried Leaf Contents  [PDF]
Eduardo Ortega, Francisco Javier Lozano, Carlos Manuel Asensio, Sara Montoya, Maria Luisa Lorenzo
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.411B001

Many authors have studied cadmium concentrations in tobacco leaves. However, crops such as tobacco store Cd mainly in their leaves and these are for human consumption. The objective of this study is to establish the cadmium levels present in each of the soils fractions throughout the growing period of tobacco plants, and to examine the influence of these fractions on the total content cadmium in dried leaves. The field select is situated near ofGranadacity (soils from Vega de Granada) loamy calcareous thermic typic Xerorthent. The plant (Nicotiana tabacum, cvs. RJ36 variety), and the soil dedicated to the tobacco crop were contaminated with a fixed amount of Cd (100 mg/kg of CdCl2) in the proximity of the root influence area. The contents of Cd are analysed in channel waters, in different soil fractions and dried tobacco leaves (mg/kg) with the different treatments. In conclusion, the water for irrigation is not a contamination risk for the soil even when user over lengthy periods of time. The fraction presenting higher average values is the one of Cd bound to CaCO3 with 0.161 ppm, and the Cd bioavailable fractions is second in importance, and propose a Cd

Characterization of Negative Exponential Distribution through Expectation  [PDF]
Milind Bhatt B.
Open Journal of Statistics (OJS) , 2013, DOI: 10.4236/ojs.2013.35042

For characterization of negative exponential distribution one needs any arbitrary non-constant function only in place of approaches such as identical distributions, absolute continuity, constant regression of order statistics, continuity and linear regression of order statistics, non-degeneracy etc. available in the literature. Path breaking different approach for characterization of negative exponential distribution through expectation of non-constant function of random variable is obtained. An example is given for illustrative purpose.

Approaches to Solve MID_CPLP Problem: Theoretical Framework and Empirical Investigation  [PDF]
Renduchintala Raghavendra Kumar Sharma, Pritee Agarwal
American Journal of Operations Research (AJOR) , 2014, DOI: 10.4236/ajor.2014.43014

In two-stage warehouse location problem, goods are moved from plants to warehouses at stage-1 (which are larger sized warehouses), and from there to warehouses at stage-2 (which are smaller sized warehouses); and finally to the markets. We aim to minimize the sum of location costs of the warehouses at stage-1 and stage-2; plus the total distribution cost of goods to the markets. In this paper two-stage capacitated warehouse location problem (TSCWLP) is vertically decomposed into the smaller problems, which is attained by relaxing the associated flow balance constraints. This leads to three different versions of Capacitated Plant Location Problem (CPLP) referred as RHS_CPLP, MID_CPLP and LHS_CPLP (Verma and Sharma REF _Ref387068711 \r \h [1]). In this paper MID_CPLP is reduced to RHS_CPLP and a single constraint 0-1 Knapsack problem by relaxing a difficult constraint. Interesting results and conjectures are given. Later two more valid constraints are added to MID_CPLP which are relaxed further to get additional results.

Stochastic Approach on Forest Fire Spatial Distribution from Forest Accessibility in Forest Management Units, South Kalimantan Province, Indonesia  [PDF]
Beni Raharjo, Nobukazu Nakagoshi
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.56055

This study explores stochastic approach to analyzing the forest fire spatial distribution from forest accessibility using 2-parameters Weibull distribution model. MODIS firespot data, as a proxy for forest fire location, from 2001 to 2012 was analyzed by correlating its spatial distribution with the distance from settlement and road/lake in 11 Forest Management Units (FMUs) in South Kalimantan Province, Indonesia. (For more information,please refer to the PDF.)

Characterization of Power-Function Distribution through Expectation  [PDF]
Milind Bhanuprasad Bhatt
Open Journal of Statistics (OJS) , 2013, DOI: 10.4236/ojs.2013.36052

For the characterization of the power function distribution, one needs any arbitrary non constant function only in place of independence of suitable function of order statistics, linear relation of conditional expectation, recurrence relations between expectations of function of order statistics, distributional properties of exponential distribution, record valves, lower record statistics, product of order statistics and Lorenz curve, etc. available in the literature. The goal of this research is not to give a different path-breaking approach for the characterization of power function distribution through the expectation of non constant function of random variable and provide a method to characterize the power function distribution as remark. Examples are given for the illustrative purpose.

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