Results 21 to 30 of about 18,220 (209)

Concentration of uranium in groundwater and its correlation with the gamma activity of primordial radionuclides in the bedrock samples: A study from northeastern part of Bengaluru city, India

Radiation Protection and Environment, 2018
The present investigation aims to study the incorporation of uranium from the bedrock to groundwater through leaching. In view of this, rock powder samples were collected in the form of slurry from the bedrock of freshly drilled borewells of the study ...
Gladys Mathews, N Nagaiah, M B Karthik Kumar, M R Ambika, N Karunakara, B C Prabhakar   +5 more
doaj   +1 more source

Effect of Shungite Application on the Temperature Sensitivity of Allium cepa Respiration under Two Soil Water Regimes

Agronomy, 2021
For agricultural soils with low natural fertility, the possibility of using rock powders as an alternative source of nutrients and/or improver of soil physical parameters is under discussion and study.
Elena Ikkonen, Svetlana Chazhengina, Olga Bakhmet, Valeria Sidorova   +3 more
doaj   +1 more source

Nepheline Syenite and Phonolite as Alternative Potassium Sources for Maize

Agronomy, 2021
Some silicate rocks are a rich source of potassium (K), with the possibility for use in agriculture. The present study aimed to evaluate the agronomic efficiency index (AEI) of nepheline syenite (NS) and phonolite (PN) rocks in comparison with potassium ...
Thiago Assis Rodrigues Nogueira, Bruno Gasparoti Miranda, Arshad Jalal, Luís Gustavo Frediani Lessa, Marcelo Carvalho Minhoto Teixeira Filho, Nericlenes Chaves Marcante, Cassio Hamilton Abreu-Junior, Arun Dilipkumar Jani, Gian Franco Capra, Adônis Moreira, Éder de Souza Martins   +10 more
doaj   +1 more source

Precipitation of amorphous iron and aluminum during the weathering of rock dust in soil columns [PDF]

Scientia Agricola
The application of rock dust (RD) in agricultural soils has shown the capacity to improve soil conditions for plant growth. However, the successful use of RD requires understanding its effects on weathering in soil surfaces and its possible products.
Rafael Cipriano da Silva, Clécia Cristina Barbosa Guimarães, Antonio Carlos de Azevedo, Marcelo Rodrigo Alves, José Alexandre Melo Demattê   +4 more
doaj   +1 more source

Rock powder amendment in enhancing plant-mediated carbon sequestration

Frontiers in Climate
The global quest for controlling climate change and ensuring environmental sustainability has necessitated the need for the adoption of environmentally friendly measures for greenhouse gas emission control.
Matthew C. Enebe, Richard W. Griffin, Javad Barouei, Ram L. Ray   +3 more
doaj   +1 more source

Application of X-ray Powder Diffraction Method in Identification and Classification of Leptite

Yankuang ceshi, 2020
BACKGROUND The identification of leptite is usually based on microscopic identification technology, but it is very difficult to distinguish tiny feldspar, quartz, and layered silicate minerals such as chlorite, montmorillonite and mica using a microscope.
WU Yue, CHI Guang-cheng, LIU Xin
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

Chemical attributes of a remineralized Oxisol

Ciência Rural, 2017
: Remineralizers are comminuted rocks that are applied to soil, and their use as an agricultural amendment was regulated in Brazil in 2013. However, mechanisms of action of these materials must be better known to enable them to be best used in ...
Rafael Cipriano da Silva, Marina Elias Cury, João José Cardinali Ieda, Renata Alcarde Sermarini, Antonio Carlos de Azevedo   +4 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source