Results 181 to 190 of about 871,982 (402)

Synthesis of Primary Amines via Reductive Amination of Aldehydes and Ketones Over a Ni‐Doped MFM‐300(Cr) Catalyst

open access: yesAdvanced Science, EarlyView.
Reductive amination of aldehydes and ketones to primary amines with high selectivity and yield can be achieved over Ni‐doped MFM‐300(Cr) in the presence of NH3 and H2. In situ inelastic neutron scattering, coupled with modeling, reveals that cooperativity between Ni active sites and MFM‐300(Cr) affords an optimal microenvironment for the selective ...
Wenyuan Huang   +18 more
wiley   +1 more source

Pore structure analysis of grain based model of sedimentary rock by means of digital image analysis [PDF]

open access: bronze, 2015
Fourier Dzar Eljabbar Latief   +3 more
openalex   +1 more source

Rock Identification [PDF]

open access: yes
This hands-on activity covers the basics of rock identification. After a brief discussion of the terms 'rock' and 'mineral', students will study the characteristics and classifications of the three major rock groups (igneous, metamorphic, and sedimentary)
John Pratte
core  

Centimeter‐Scale Self‐Assembling Tendon Organoids Drive Tissue Regeneration

open access: yesAdvanced Science, EarlyView.
Centimeter‐scale tendon organoids are engineered by mimicking the extracellular matrix and optimizing chemical cues to guide tendon stem/progenitor cells. These large, self‐assembling constructs overcome conventional size limitations and exhibit enhanced tenogenic differentiation, extracellular matrix production, and mechanical resilience. Their tissue‐
Tianshun Fang   +16 more
wiley   +1 more source

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