Results 101 to 110 of about 1,299,170 (374)

Anti-Corrosion and Tribo-Mechanical Properties of Co-deposited Zn–SnO2 Composite Coating [PDF]

open access: yes, 2015
Zn–SnO2 composite coatings were prepared by direct potential using electrolytic co-deposition technique from sulfate solution. The effect of Zn2? and SnO2 concentrations in deposited bath on the mechanical properties and morphological characteristics ...
Fayomi, O. S. I, Popoola, A. P. I.
core  

Portable and Raman imaging usefulness to detect decaying on mortars from Punta Begoña Galleries (Getxo, North of Spain) [PDF]

open access: yes, 2016
Punta Begoña Galleries were built in 1918 in Getxo (Basque Country, North of Spain) but were abandoned in 1960. Nowadays, their conservation state is very poor.
Arana Momoitio, Gorka   +6 more
core   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

From Meteorite to Meteor-Wrong: Investigating a controversial specimen from Cuba

open access: yesRevista Mexicana de Ciencias Geológicas
The meteorite “Cuba”, whose type of mass is catalogued as MNCN No. 17294 (Museum of Natural Sciences, Madrid, Spain), has long been considered an official meteorite, included in the Meteoritical Society’s online database.
Yasmani Ceballos-Izquierdo   +2 more
doaj   +1 more source

شناسایی ترکیب شیمیایی پوشش لعاب گلی و رنگ‌های بکار رفته در برخی از سفالینه‌های گلابه‌ای منقوش مکشوفه از منطقه سیستان [PDF]

open access: yesمطالعات در دنیای رنگ, 2023
یکی از مهم‌ترین انواع سفال‌های اوایل دوران اسلامی، در ایران، سفالینه‌‌های گلابه‌ای منقوش است که در قرون سوم و چهارم هجری قمری ‏به ویژه در عصر سامانیان در ایران توسعه و گسترش یافته است.
مسعود باتر   +1 more
doaj  

Petrographic evaluation of a 50-year-old concrete pavement made with quartzitic aggregate [PDF]

open access: yes, 2015
A 50-year-old pavement from the city of La Plata (Province of Buenos Aires, Argentina), which had recently been replaced due to significant deterioration (cracks, sinking, etc.), was examined.
Coelho Dos Santos, Gabriela   +2 more
core  

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Identification of Heavy Metals in Crystals of Sand and Silt Fractions of Soils by Scanning Electron Microscopy (SEM EDS/WD-EPMA)

open access: yes, 2018
Studies of heavy metals are concentrate on clay fractions, but coarser fractions of the soil can constitute significant sources of structural forms of heavy metals.
Araína Hulmnn Batista   +3 more
semanticscholar   +1 more source

Feasibility of waste-derived hydroxyapatite mixed with ultra high molecular weight polyethylene composites for fused deposition modeling process [PDF]

open access: yes, 2018
In this study, feasibility of waste-derived hydroxyapatite (HAp) reinforced UHMWPE composites for Fused Deposition Modeling (FDM) process was investigated.
Md Ansari, Mohamad Helmi
core   +1 more source

Estudio comparativo de capas de TiO2depositadas por PLD a presión atmosférica y nebulización pirolítica [PDF]

open access: yes, 2018
Las nanocapas cerámicas son ampliamente estudiadas por su interés en aplicaciones tecnológicas. Estos recubrimientos pueden conformar celdas solares, superficies de transmisión, emisión o reflexión selectiva de luz, entre otras tantas aplicaciones.
Alvira, Fernando Carlos   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy