Results 31 to 40 of about 114,535 (299)
AgricultureIncreasing total soil porosity and optimizing pore distribution improve soil water-holding capacity, thereby alleviating drought impacts on crop yields in semi-arid regions. A three year split-plot field experiment was conducted, with organic fertilizer (
Min Zhao +6 more
doaj +1 more source
Revista Brasileira de Ciência do Solo, 2004 A integração da lavoura com a pecuária altera a estrutura do solo, que, por sua vez, interfere nas características físicas na camada superficial. O objetivo deste trabalho foi avaliar os atributos físicos de solo e o rendimento de grãos num Latossolo ...
S. T. Spera +3 more
doaj +1 more source
Agronomy, 2020 In many areas, organic crop production systems have been shown to contribute to maintaining good soil condition. The organic production system has been recommended as an alternative to conventional agriculture.
Anna Maria Gajda +2 more
doaj +1 more source
Determination of Porosity in Fluidized-Bed Carburized P/M Compacts Using an Image Software Analysis
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2021 The aim of this research was to study the porosity in carburizing in fluidized-bed on sintered alloys produced by powder metallurgy route using an image analysis software and to compare the obtained results with the conventional method for porosity ...
Mihaela MARIN, Florin-Bogdan MARIN
doaj +1 more source
Closed versus total porosity for ice core RECAP_S2, 49-73 m
, 2017 Closed versus total porosity for ice core RECAP_S2, 49-73
Schaller, Christoph Florian +5 more
core +1 more source
Revista Brasileira de Ciência do Solo, 2009 Atributos físicos de solo foram avaliados num Latossolo Vermelho distrófico típico, em Passo Fundo, RS, dez anos após o estabelecimento (1993 a 2003) de cinco sistemas de produção integrando culturas produtoras de grãos, pastagens de inverno e ...
Silvio Tulio Spera +3 more
doaj +1 more source
Porosity analysis of three types of balsa (Ochroma pyramidale) wood depending on density
Journal of Wood Science, 2022 Balsa (Ochroma pyramidale), which is the lowest density wood, is a useful species in various industries. In general, balsa can be divided into three types (low density: LD, middle density: MD, high density: HD).
Eun-Suk Jang, Chun-Won Kang
doaj +1 more source
Experimental Investigating of Compaction Effect on Porosity Measurement for Carbonate Rocks
Iraqi Geological Journal, 2022 Oil and natural gas may be found in commercial reservoirs, porous and easily permeable rocks. Porosity is an essential characteristic of reservoirs. This research focuses on comparing laboratory-measured porosity to log porosity. A comparison of
Ahmed Watten, Mohammed S. Aljwad
doaj +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView.This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir +2 more
wiley +1 more source
Coordination number versus total porosity for ice core B49, 73-90 m
, 2017 Coordination number versus total porosity for ice core B49, 73-90
Schaller, Christoph Florian +5 more
core +1 more source