Results 61 to 70 of about 675 (179)

Eucalyptus pellita Plantations May Alter Soil Physicochemical Properties in the Dry Semideciduous Forest Zone in Ghana

Applied and Environmental Soil Science, Volume 2025, Issue 1, 2025.
Aims Although eucalyptus plantation forestry in West Africa is soaring, its impacts on the soil properties remain inadequately understood. This study investigated the impacts of eucalyptus plantations on soil physical and chemical properties and examined the relationship between soil properties, plantation structure, and carbon stocks in Ghana ...
Bertrand F. Nero, E. G. Zaki
wiley   +1 more source

Synthesis and Electrochemical Feature of a Multiple-Phases Li-Rich Nickel Manganese Oxides Cathode Material

International Journal of Electrochemical Science, 2011
A cathode material with multiple phases, containing Li2O-deficient layered Li-rich nickel manganese oxides and spinel LiNi0.5Mn1.5O4, was prepared by controlling the calcination temperature.
Jun Wang, Yonggao Xia, Xiayin Yao, Minghao Zhang, Yiming Zhang, Zhaoping Liu   +5 more
doaj   +1 more source

Enhancement of copper mobilization using acidic AlCl3 − rich lixiviant

Minerals Engineering
Copper (Cu) extraction from low-grade ores is limited by the formation of secondary minerals that can passivate the surfaces of Cu-sulphide minerals in these ores. Hence, a novel approach utilizing AlCl3 as a lixiviant was developed to modify coupled dissolution-reprecipitation processes at the mineral interface. The formation of Al-rich phases instead
Ansah, Eric O., Black, Jay R., Haese, Ralf R.   +2 more
openaire   +3 more sources

DRY GOOSEBERRY (Physalis peruviana L) WITH PRETREATMENT OF OSMOTIC DEHYDRATION

Vitae, 2009
This study find the air temperatures for dehydrating Cape gooseberry, (Physalis peruviana L), with osmotic dehydration as a pretreatment, using a solution of sucrose of 70 o Brix to 40 oC by 16 hours. The highest level of β-carotene degradation, 98%, due
Adriana M. CASTRO, Ligia RODRÍGUEZ, Edgar M. VARGAS   +2 more
doaj  

Efeito do intemperismo artificial em quatro madeiras tropicais monitorado por espectroscopia de infravermelho (DRIFT) Effect of artificial weathering on tropical woods monitored by infrared spectroscopy (DRIFT)

Química Nova, 2008
Four tropical woods, were investigated to compare their performance and natural resistances to artificial weathering using the diffuse reflectance infrared Fourier transform spectroscopy (DRIFT).
Tereza Cristina Monteiro Pastore, Cynara Caroline Kern de Oliveira, Joel Camargo Rubim, Kelly de Oliveira Santos   +3 more
doaj   +1 more source

Uranium in the Surrounding of San Marcos-Sacramento River Environment (Chihuahua, Mexico)

The Scientific World Journal, 2012
The main interest of this study is to assess whether uranium deposits located in the San Marcos outcrops (NW of Chihuahua City, Mexico) could be considered as a source of U-isotopes in its surrounding environment.
Marusia Rentería-Villalobos, Manuel Reyes Cortés, Juan Mantero, Guillermo Manjón, Rafael García-Tenorio, Eduardo Herrera, Maria Elena Montero-Cabrera   +6 more
doaj   +1 more source

LIXIVIATION OF IMAZETHAPYR AND IMAZAMOX IN DIFFERENT SOILS

, 2007
O uso de herbicidas nos cultivos agrícolas tem aumentado progressivamente. Concomitantemente, houve também uma crescente preocupação com o meio ambiente, no sentido de prevenir ou mitigar impactos ambientais negativos. A contaminação de águas subsuperficiais por agrotóxicos decorre, principalmente, da lixiviação de seus resíduos.
Pasqualetto, Antônio, Zito, Roberto Kazuhiko, Ruiz, Hugo A., Silva, Antônio Alberto da   +3 more
openaire   +1 more source

Contribuição à avaliação ambiental de materiais e componentes construtivos: proposta de método para obtenção de extrato lixiviado

Ambiente Construído
Os materiais de construção civil estão sujeitos à lixiviação de seus constituintes, que podem levar à contaminação do ambiente. No Brasil, a avaliação ambiental de materiais e componentes com resíduos é realizada por análise do extrato lixiviado ...
Marlova Piva Kulakowski, Feliciane Andrade Brehm, Claudio de Souza Kazmierczak, Mariele Lunkes   +3 more
doaj   +1 more source

Crosslinked Poly(HEMA)–Based Cellulose Nanocrystal Contact Lenses: Polymer Structure and Nanoparticle Lixiviation

International Journal of Polymer Science
Poly(HEMA)-based materials are widely used in medical devices, with well-established applications in soft contact lenses (CLs). Owing to their simplicity and the extensive literature available, poly(HEMA) derivatives—particularly crosslinked HEMA:EGDMA ...
Arthur Spilit, Syed Ali Faran, Alain Dufresne, Laurence Fitzhenry, Marcos Mariano   +4 more
doaj   +1 more source