Results 21 to 30 of about 131 (104)
Sedimentological and Geochemical Study of Foundation Zone Sediment at Baiji City, North Iraq
Tikrit Journal of Pure Science, 2023 The study includes grain size analysis, clay minerals, selected heavy metals, total dissolved solids and chemical properties. The grain size analyses of (78) samples indicate that the upper layers of the floodplain are fine where the lower layers are ...
LaftaS.Kadhim +2 more
doaj +1 more source
Thermoelastic properties nanocomposite chloroprene of rubber with montmorilonit
Кераміка: наука і життя, 2021 The problem that arises during the operation of tires is cyclic deformation, in which there is a conversion of mechanical energy into heat. However, due to the low thermal conductivity of rubber, repeated cyclic loads of products based on them lead to heating, which is due to the phenomenon of mechanical hysteresis.
openaire +2 more sources
SINTESIS DAN KARAKTERISASI FOTOKATALIS TiO2 MONTMORILONIT TERPILAR ALUMINA
Jurnal Pijar Mipa, 2017 Abstrak. Dispersi TiO2 ke dalam montmorilonit terpilar alumina (PILM) telah sukses dilakukan. Fotokatalis dibuat dengan menginterkalasikan Al13 ke dalam montmorilonit alam kemudian dikalsinasi pada temperatur 500oC. Dispersi TiO2 ke dalam montmorilonit terpilar aluminium (PILM) dilakukan dengan menggunakan metode impregnasi dengan konsentrasi teoritis ...
Iwan Sumarlan, Is Fatimah, Karna Wijaya
openaire +6 more sources
Мінеральні ресурси України, 2020 The article presents the results of diamond prospecting studies in the Subotska structure of the Inhulskyi megablock of Ukrainian Shield. For the results, it is indicated that the Subotska structure is mimicked by crater rocks and in some cases by ...
G. A. Kalashnyk
doaj +1 more source
Karakteristik Alterasi dan Mineralisasi Hidrotermal Daerah Hulawa, Gorontalo, Indonesia
Jambura Geoscience Review, 2020 Gold is one of the precious metals with high economic value, so the exploration process becomes an important stage to find new resources so that gold production remains optimal.
Umar Zulkarnain Bakkar +3 more
doaj +1 more source
Morfologi Hakisan dan Sifat Serakan Lempung Kaolinit dan Montmorilonit di Kawasan Tropika
Sains Malaysiana, 2022 Tanah terserak merupakan tanah bermasalah lantaran sifat semula jadinya yang mudah bertindak balas apabila terdapat kehadiran air lalu meningkatkan potensi hakisan cerun. Kewujudan ion natrium pada mineral lempung tanah melemahkan ikatan elektrokimia tanah terserak menyebabkan zarah lempung menolak dan menjauhi satu sama lain.
Azlan Shah Nerwan Shah +2 more
openaire +1 more source
Journal of Chemistry, Volume 9, Issue 1, Page 407-414, 2012., 2012 2,3‐Dihydro‐1H‐1,5‐benzodiazepines were synthesized by reaction of o‐phenylenediamine with ketones (acyclic / cyclic) under solvent free conditions in the presence of tetra butyl ammonium bromide (TBAB) in short reaction time with excellent yield.
Mohammad A. Baseer, Asgar Jafar Khan
wiley +1 more source
AMINA, 2022 Senyawa di(2-etilheksil) ftalat (DEHP) merupakan salah satu polutan yang ditetapkan oleh European Union (EU) dan World Health Organization (WHO) ke dalam daftar polutan utama dan dianggap paling bermasalah bagi kesehatan manusia yaitu dapat menimbulkan gangguan sistem endokrin, sistem saraf, dan hepatotoksik. DEHP digunakan sebagai plasticizer terutama
Reza Roisatul Umma +2 more
openaire +1 more source
Humus and Humic Acids of Luvisol and Cambisol of Jiguli Ridges, Samara Region, Russia
Applied and Environmental Soil Science, Volume 2009, Issue 1, 2009., 2009 Luvisols and Cambisols are two types of sub‐boreal soils, which are known as continental and humid‐ocean types of soils in deciduous forests respectively. Morphological features of soil, which are frequently used as the main argument in solum diagnostics, are subjective and do not give final decision that continental Cambisols are a specific type of ...
Evgeny Abakumov +3 more
wiley +1 more source
The Dependence of the XRD Morphology of Some Bionanocomposites on the Silicate Treatment
Journal of Nanomaterials, Volume 2008, Issue 1, 2008., 2008 The degree of intercalation of the polyvinyl alcohol‐starch blend with the layered silicate is increased if the silicates is untreated or intercalated with ammonium ions that contain small radicals. If untreated silicate like NaMMT is used, it is possible to obtain exfoliated‐intercalated nanocomposites. The materials based on PVOH, starch, and Nanocor
Doina Dimonie +5 more
wiley +1 more source