General guidelines to reclaim saline or sodic soils do not adequately consider variables such as pH and the presence of organic matter that are known to affect soil stability. Poor structural stability of sodic, saline-sodic, and high-pH soils adversely influences crop yields; promotes piping, tunneling, and slope erosion; and can accelerate the failure of water conveyance systems. We evaluated...

L. A Souza, F. F. Bellotti, T. Frederico, M. T. Yamashita, and L. Tomio Instituto Tecnológico de Aeronáutica, DCTA, 12228-900, São José dos Campos, Brazil Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark Instituto de Fomento e Coordenação Industrial, 12228-901, São José dos Campos, SP, Brazil Instituto de F́ısica Teórica, UNESP Univ Estadual Paulista, C.P. 70532-...

In this paper we extend concepts of statistical limit superior and inferior (as introduced by Fridy and Orhan) to I−limit superior and inferior and give some I−analogue of properties of statistical limit superior and inferior for a sequence of real numbers. Also we extend the concept of the statistical core to I−core for a complex number sequence and get necessary conditions for a summability m...

* Limit of Blank (LoB), Limit of Detection (LoD), and Limit of Quantitation (LoQ) are terms used to describe the smallest concentration of a measurand that can be reliably measured by an analytical procedure. * LoB is the highest apparent analyte concentration expected to be found when replicates of a blank sample containing no analyte are tested. LoB = mean(blank) + 1.645(SD(blank)). * LoD is ...

The soil is the base layer of construction that must have good carrying capacity. To find out magnitude capacity soil, one them using UCST (Unconfined Compressive Strength Test) testing. This study was conducted by taking samples in Olak Kemang Seberang Jambi City which classified as fat clay soil. purpose this to see effect addition saw ash wood towards properties index values and Test). perce...

In open-pit mine planning, the design of the most profitable ultimate pit limit is a prerequisite to developing a feasible mining sequence. Currently, the design of an ultimate pit is achieved through a computer program in most mining companies. The extraction of minerals in open mining methods needs a lot of capital investment, which may take several decades. Before the extraction, the p...