A perlite sample representative of an operating mine in Milos was investigated with respect to the type and spatial distribution of water. A set of different methods was used which finally provided a consistent view on the water at least in this perlite. Infrared spectroscopy showed the presence of different water species (molecular water and hydroxyl groups / strongly bound water). The presenc...

Abstract Various kinds of substrates have been widely used for vegetables grown in soilless culture systems. The use biochar is getting a lot attention. However, the ideal proportion combined with vermicompost high yields has not thoroughly studied. This study aimed to examine pot experiment effect combination rice husk (15% and 30%) (50, 100, 150, 200, 250 g per pot) growing substrate on nutri...

The adsorption characteristics of cadmium and nickel onto expanded perlite from aqueous solution have been investigated with respect to changes in pH of solution, adsorbent dosage, contact time and temperature of the solution. The maximum removal efficiency of Cd (II) is 88.8% at pH 6 and exposure to 10 g/L expanded perlite, while for Ni (II), it is 93.3% at the same pH and exposure to 8 g/L ad...

ABSTRACT: This study evaluated the effect of dietary net energy (NE) levels on growth performance and carcass characteristics barrows from 30 to 70 kg body weight (BW). Sixty with initial (IBW) 31.94 ± 3.54 final (FBW) 71.98 5.99 were allotted one five NE (2.40, 2.45, 2.50, 2.55, 2.60 Mcal kg-1), using a completely randomized block design six replicates two per replicate. The experimental perio...

Cocopeat, a by-product of the coconut (Cocos nucifera L.), is an important soilless media that contains high potassium (K), sodium (Na), and electrical conductivity (EC) depending on its source. Methods for extracting these elements thus lowering EC are yet to be standardized. This study was therefore carried out investigate two extraction methods in cocopeat. A greenhouse pot experiment at Cli...

Abstract The thermal resistance of concrete significantly influences the energy consumption building. Consequently, with high can contribute to envelope’s efficiency. In order obtain conductivity performance required for passive house standard using principles sustainable development, it is essential analyze improvement solutions a low impact on environment. For this reason, necessary methods i...

The adverse effect of mineral dust on general health level of the population has been widely studied lately. The research interest has been mainly focused on the respiratory function of coal miners and workers exposed to silica and asbestos containing dust [1-3] because a significant increase in COPD independent of smoking has been observed [4-5]. Among the materials considered hazardous for wo...