Results 61 to 70 of about 1,049,660 (248)

Simplified Procedure for General Synthesis of Monosubstituted Piperazines—From a Batch Reaction Vessel to a Flow (Microwave) Reactor

open access: yesMolecules, 2020
We reported a novel simplified synthetic procedure for the preparation of monosubstituted piperazine derivatives which can now be easily prepared in a one-pot-one-step way from a protonated piperazine with no need of introduction of a protecting group ...
Dana Němečková   +4 more
doaj   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

A spectroscopic analysis of carbons derived from heat treated phenolic-resins

open access: yes, 1995
The aim of this study is to determine the degree to which the aromaticity of carbons produced from heat-treated (to 1000°C) acid-catalysed phenolic resins is altered when the resin precursors are combined with furfuryl-alcohol, paraformaldehyde and ...
Hurley, Colin A (15929756)
core   +1 more source

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

open access: yesAdvanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová   +6 more
wiley   +1 more source

Rule-Based Design of Synthetic Transcription Factors in Eukaryotes

open access: yes, 2013
To design and build living systems, synthetic biologists have at their disposal an increasingly large library of naturally derived and synthetic parts.
Peccoud, Jean   +2 more
core   +1 more source

The efficiency of macroporous polystyrene ion-exchange resins in natural organic matter removal from surface water

open access: yesE3S Web of Conferences, 2017
Natural water sources used for water treatment contains various organic and inorganic compounds. Surface waters are commonly contaminated with natural organic matter (NOM). NOM removal from water is important e.g. due to lowering the risk of disinfection
Urbanowska Agnieszka   +1 more
doaj   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk   +4 more
wiley   +1 more source

Synthetic biology

open access: yes, 2009
There is currently much excitement surrounding the rapidly growing discipline of synthetic biology, which utilizes the design and construction principles of engineering to develop, evolve and standardize biological components and systems. This systematic
Ali Tavassoli, Tavassoli, Ali
core   +1 more source

Designing and study of composites reinforced with shredded corn stalks using a variety of matrices based on dammar, epoxy and acrylic resins

open access: yesPolymer Testing
The primary goal of this research was to develop and evaluate environmentally friendly composite materials. Shredded corn stalks, regarded as both renewable resources and industrial by-products, were employed as the main reinforcement.
Cosmin Mihai Mirițoiu   +2 more
doaj   +1 more source

Materials‐Driven Additive Manufacturing for Electrical Machines: Qualification‐Oriented Design Beyond Geometric Freedom

open access: yesAdvanced Engineering Materials, EarlyView.
This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley   +1 more source

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