Results 21 to 30 of about 2,054,798 (317)

Residual polymer stabiliser causes anisotropic electrical conductivity during inkjet printing of metal nanoparticles

Communications Materials, 2021
Inkjet printed metal nanoparticles are known to have lower electrical conductivity than those produced by traditional approaches. Here, anisotropic electrical conductivity is attributed to organic residuals from the metal nanoparticle ink, reducing ...
Gustavo F. Trindade, Feiran Wang, Jisun Im, Yinfeng He, Adam Balogh, David Scurr, Ian Gilmore, Mariavitalia Tiddia, Ehab Saleh, David Pervan, Lyudmila Turyanska, Christopher J. Tuck, Ricky Wildman, Richard Hague, Clive J. Roberts   +14 more
doaj   +1 more source

3D Printing Using Ti-Al Nanopowders: Mechanisms of Structure Formation

Metals, 2022
In the presented research work, 3D materials were fabricated by additive moulding by means of extrusion of a mixture of high filled polymers and nanopowders of Ti-Al intermetallides with subsequent sintering at 1100 ± 20 °C, 1200 ± 20 °C and 1250 ± 20 °C
Vladimir Promakhov, Alexey Matveev, Artem Babaev, Nikita Schulz, Nikita Toropkov, Alexander Vorozhtsov, Marat Lerner   +6 more
doaj   +1 more source

Knowledge-based bidirectional thermal variable modelling for directed energy deposition additive manufacturing

Virtual and Physical Prototyping
Directed energy deposition additive manufacturing (DED-AM) has gained significant interest in producing large-scale metallic structural components. In this paper, a knowledge-based machine learning (ML) approach, combining both physics-based simulation ...
Jian Qin, Pradeeptta Taraphdar, Yongle Sun, James Wainwright, Wai Jun Lai, Shuo Feng, Jialuo Ding, Stewart Williams   +7 more
doaj   +1 more source

On additive invariants of actions of additive and multiplicative groups

, 2013
Let X be an algebraic variety with an action of either the additive or multiplicative group. We calculate the additive invariants of X in terms of the additive invariants of the fixed point set, using a formula of Białynicki-Birula.
Hu, W.
core   +1 more source

4D printing of shape-programmable polymer-derived ceramics via two-stage folding-assisted pyrolysis strategy

Virtual and Physical Prototyping
Polymer-derived ceramics (PDCs) can be used in wide applications due to their high hardness and stable chemical properties. However, these characteristics lead to the challenging controllable deformation of additively manufactured PDCs.
Long Jiang, Chongyu Long, Shufeng Xiong, Xuming Wang, Yan Mo, Jinhui Zeng, Zhiyuan Liu, Changyong Liu, Zhangwei Chen   +8 more
doaj   +1 more source

Additive Spanners: A Simple Construction

, 2014
We consider additive spanners of unweighted undirected graphs. Let $G$ be a graph and $H$ a subgraph of $G$. The most na\"ive way to construct an additive $k$-spanner of $G$ is the following: As long as $H$ is not an additive $k$-spanner repeat: Find a ...
Knudsen, Mathias Bæk Tejs
core   +1 more source

Zeolitic Imidazolate Frameworks Serve as an Interface Layer for Designing Bifunctional Bone Scaffolds with Antibacterial and Osteogenic Performance

Nanomaterials, 2023
The integration of hydroxyapatite (HA) with broad-spectrum bactericidal nano-silver within biopolymer-based bone scaffolds not only promotes new bone growth, but also effectively prevents bacterial infections.
Jingxi Huang, Chen Cheng, Youwen Yang, Jun Zan, Cijun Shuai   +4 more
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar, Denise M. Connolly, Ellen Kellington, Elyse Zelunka, Karla Kerrigan, Furqan Shaikh, Paul C. Nathan, Meredith S. Irwin, Sarah Cohen‐Gogo   +8 more
wiley   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis, Okeleji Olayinka, Mariam Z. Quraishi, Lakshmi V. Srivaths, Deborah L. Brown, Neethu M. Menon, Ricardo A. Mosquera, Ashwin P. Patel, James M. Stark, Aravind Yadav   +9 more
wiley   +1 more source

Optimising the manufacturing of a β-Ti alloy produced via direct energy deposition using small dataset machine learning

Scientific Reports
Successful additive manufacturing involves the optimisation of numerous process parameters that significantly influence product quality and manufacturing success.
Ryan Brooke, Dong Qiu, Tu Le, Mark A. Gibson, Duyao Zhang, Mark Easton   +5 more
doaj   +1 more source