Results 71 to 80 of about 679,102 (329)

Digital Ink Technology for e-assessment [PDF]

open access: yes, 2008
Current research has shown that lecturers marking electronic assignments, typically Word documents, are able to provide personalised feedback at a relevant point in a student’s piece of assessment using paper technology such as a Tablet PC.
Fisher, Wendy A.
core  

L-Drawings of Directed Graphs

open access: yes, 2015
We introduce L-drawings, a novel paradigm for representing directed graphs aiming at combining the readability features of orthogonal drawings with the expressive power of matrix representations.
A Garg   +16 more
core   +1 more source

Physical mechanisms governing pattern fidelity in microscale offset printing [PDF]

open access: yes, 2001
We have studied the offset printing of liquid polymers curable by exposure to ultraviolet light onto flat and unpatterned silicon and glass substrates.
Darhuber, Anton A.   +2 more
core   +2 more sources

Coordinated Multi‐Component Gradient Engineering of Catalyst Layers for Advanced Polymer Electrolyte Fuel Cells

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou   +15 more
wiley   +1 more source

Cephalopod Ink: Production, Chemistry, Functions and Applications

open access: yesMarine Drugs, 2014
One of the most distinctive and defining features of coleoid cephalopods—squid, cuttlefish and octopus—is their inking behavior. Their ink, which is blackened by melanin, but also contains other constituents, has been used by humans in various ways for ...
Charles D. Derby
doaj   +1 more source

Ethics in ADR Representation: A Roadmap of Critical Issues [PDF]

open access: yes, 1997
Much ink has been spilled in recent years on the ethics and standards that should be applied to third party neutrals acting as mediators, arbitrators or evaluators in a variety of alternative (or as we now say, appropriate ) dispute resolution fora ...
Menkel-Meadow, Carrie
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Emission of reactive oxygen species during degradation of iron gall ink [PDF]

open access: yes, 2010
Iron gall inks are characterised by high contents of acids and transition metals, promoting degradation of cellulose due to hydrolysis and oxidation, respectively. Their chemical interaction with the environment is not well understood, especially in view
Cassar, M.   +5 more
core  

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

open access: yesAdvanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar   +4 more
wiley   +1 more source

Use of the Vandercook Proof Press to Predict Rotogravure Print Quality [PDF]

open access: yes, 1970
The object of this thesis is to investigate a new idea in predicting printability for rotogravure printing. Present proof presses in the gravure industry are clumsy, expensive, and in most cases, impractical for regular use.
Phee, Patrick
core   +1 more source

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