Results 81 to 90 of about 6,804 (226)

Higher diversity of Rhizobium leguminosarum biovar viciae populations in arable soils than in grass soils [PDF]

open access: yes, 1999
The bacterial genetic diversity after long-term arable cultivation was compared with that under permanent grassland using replicated paired contrasts, Pea-nodulating Rhizobium leguminosarum populations were sampled from pairs of arable and grass sites at
Palmer, K M, Young, J P W
core   +2 more sources

Biodegradable Polymers for Plant Nutrient Delivery and Recovery

open access: yesMacromolecular Bioscience, Volume 25, Issue 8, August 2025.
This review article discusses the use of biodegradable polymers to address several grand challenges in agriculture: to improve the delivery of nitrogen and phosphorous to crops, to optimize plant uptake, and to enhance the recovery of these nutrients from wastewater, to recycle them and reduce water pollution. Abstract The current use of fertilizers is
Alice Boarino   +4 more
wiley   +1 more source

Preparation Process of Attapulgite/Nano Iron Composite and its Removal Application to Methylene Blue

open access: yesKuangchan zonghe liyong
This is an article in the field of ceramics and composites. Methylene blue is a typical pollutant industrial wastewater.It will bring great harm to the water body if it is discharged arbitrarily without treatment.
Guangxi HE   +4 more
doaj   +1 more source

Origin and distribution of mineral species in limestone caves [PDF]

open access: yes, 1971
More than 80 mineral species are known to result from secondary chemical reactions in solutional limestone caverns. These minerals are transitional and end-products of carbonate wall rock interactions with ground water and organic residue.
Broughton, Paul L.
core   +1 more source

Recent Progress of Advanced Composites for Broadband Electromagnetic Wave Absorption

open access: yesSmall Structures, Volume 6, Issue 7, July 2025.
This review summarizes the latest developments in multidimensional design strategies for broadband electromagnetic (EM) wave‐absorbing materials. The most significant recent advancements in 0D–3D materials toward the achievement of broadband EM wave absorption are thoroughly reviewed.
Zhiheng Wei   +4 more
wiley   +1 more source

A novel deproteinization method from crude polysaccharides of Meretrix meretrix Linnaeus based on palygorskite‐chitosan composite aerogel sieving effect

open access: yeseFood, Volume 6, Issue 2, April 2025.
Structure‐controlled palygorskite‐chitosan composite aerogels were synthesized to selectively separate proteins from polysaccharides of Meretrix meretrix Linnaeus. Abstract Due to the delicious taste and remarkable bioactivities of Meretrix meretrix L., they have garnered attention in food field.
Yong Zhu   +7 more
wiley   +1 more source

A study of some chemical and physical properties of the clay minerals nontronite, attapulgite and saponite [PDF]

open access: yes, 1942
Publication authorized October 12, 1942."The bulletin comprises the major part of the thesis presented by O.G. Caldwell for the degree of doctor of philosophy in the University of Missouri"--P.
Caldwell, Orval Graham, 1906-   +1 more
core  

Interaction of Eu-isotopes with saponite as a component of the engineered barrier [PDF]

open access: yes, 2011
Bentonite is accepted as the best clay material in the engineered barrier of deep geological repositories (DGRs) for radioactive waste disposal. In recent years, the interactions between a wide range of rare-earth (REE) cations and smectites have been ...
Alba Carranza, María Dolores   +6 more
core   +1 more source

Comprehensive physicochemical study of dioctahedral palygorskite-rich clay from Marrakech High Atlas (Morocco) [PDF]

open access: yes, 2013
This study is devoted to the physicochemical and mineralogical characterizations of palygorskite from Marrakech High Atlas, Morocco. The raw clay and its Na?-saturated\ 2 lm fraction were characterized using chemical, structural, and thermal analytical ...
Amjoud, M'barek   +10 more
core   +4 more sources

Application of hydrophobic fluorinated silicon oxide nanoparticle coating on electrodynamic screen (EDS) films for enhancing self-cleaning function of solar collectors [PDF]

open access: yes, 2020
Optical surfaces, which are exposed to outdoor environmental conditions, are susceptible to dust deposition. Sunlight incident on the surface of photovoltaic (PV) modules is attenuated by the dust layer accumulation on the front surface of the modules ...
Guo, Yuchun
core  

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