Dois materiais energéticos, ricos em nitrogênio, baseados em 1-amino-2-nitroguanidina foram sintetizados. O comportamento térmico, propriedades termo-dinâmicas, estruturas eletrônicas e propriedades de detonação foram investigados. As curvas de calorimetria exploratória diferencial (DSC) mostram que 1-amino-2-nitroguanidina 2,4,5-trinitroimidazol (sal 1) pode ser usado como lançador de explosiv...

A grammar compression algorithm, called GCIS, is introduced in this work. GCIS based on the induced suffix sorting algorithm SAIS, presented by Nong et al. 2009. The proposed solution builds factorization performed SAIS during sorting. context-free used to replace factors non-terminals. then recursively applied shorter sequence of resulting encoded exploiting some redundancies, such as common p...

Purpose The aim of this paper is to compare the audit and accountability arrangements Supreme Audit Institutions (SAIs) internationally. Design/methodology/approach Building on a theorisation regulatory space, extended by new spaces public audit, scope research 196 SAIs that are full members International Organization (INTOSAI). study based documentation review, workshops with steering panel, s...

Abstract The need for clean water in the dry season is often higher because many people would experience drought. drought occurred a Central Java area, Tegal, precisely at Warureja Village and its surroundings. purposes are to determine aquifer distribution provide recommendations well drilling points. study used geo-electricity method of Schlumberger configuration field surface observation. Mo...

There is a layer of the unconsolidated confined aquifer (UCA) made non-cemented sand and grit on bed Quaternary thick topsoil in many coal mines east north China. Existing bedrock measures, it poses serious threat to mine safety. Worse, caused supports crushing water inrush disasters (SCWIDs) resulted significant economic losses. Aiming at above problems, this paper adopts simulation experiment...

Apulia, in the absence of surface water, is one of the Italian regions which satisfy their water requirements by drawing large quantities (over 40%) of its water from underground resources. The large amounts drawn from these resources in the last few years due to increasing human activity on the territory has determined a general and inevitable reduction of the quality of the underground water ...

The study aims to determine the hydrologic properties of an aquifer Malamawi Island in terms transmissivity, storage coefficient, and specific discharge using Theis method. was conducted March 2015. 4 inches 2- boreholes are drilled two different locations (Diki Santa Barbara villages) identify lithologic properties. A pumping test performed for forty-five (45) minutes and, drawdowns observed f...