Zero insulators directly reduce the electrical performance of insulator strings, affecting safe and reliable operation transmission lines. The grounding current string contains characteristic information performance. Extracting can realize detection zero value insulator, which is great significance to ensure In this paper, composite used on ultra-high-voltage (UHV) lines studied analyze influen...

In this paper, we construct a new Lagrangian discrete distribution, named the zero truncated Poisson distribution (LZTPD). It can be presented as generalization of Poissson (ZTPD) and an alternative to intervened (IPD), which was elaborated for modelling both over-dispersed under-dispersed count datasets. The mathematical aspects LZTPD are thoroughly investigated, its connection other distribut...

In this paper, we develop a freight transportation model for railway network considering hazmat transportation issue. In the transportation system considered, different customers can request for carrying hazmat and non- hazmat boxes. It is assumed that the sequence of the trains in the network is known. The objective is assigning the non-hazmat boxes and hazmat boxes to wagons of the trains so ...

adsorption of p-nitrophenol by three different activated carbons (f100, s.e.i. and b.d.h.) was carried out at 301 k and at controlled ph conditions. two different adsorption models (langmuir model and freundlich model) were studied and compared. the adsorption capacity of the carbons depends on the point of zero charge (pzc) and surface area of the carbons. adsorption of the solute at higher ph...

Risk-based assessment methods are commonly used at the contaminated sites by hydrocarbon pollutants. This paper presents the results of a two-dimensional finite volume model of reactive transport of biodegradable BTEX which have been developed for the saturated zone of an unconfined aquifer in the Pump station area of Tehran oil refinery, Iran. The model governing equations were numerically sol...