Results 101 to 110 of about 804,787 (398)

Machine Learning‐Based Design of 3D‐Printable Microneedles for Enhanced Tissue Anchoring with Reduced Tissue Damage

Advanced Engineering Materials, EarlyView.
A machine learning‐driven framework is introduced to optimize 3D‐printable microneedles for enhanced tissue anchoring and reduced insertion damage. The optimized design achieves a 6.0‐fold improvement in pull‐out‐to‐penetration energy ratio over conventional shapes.
Jegyeong Ryu, Jiyeop Kim, Chan Wook Park, Hae‐Yoon Kim, Deukhee Lee, Amy Kyungwon Han   +5 more
wiley   +1 more source

Comparison of Fe, Zn, Mn, Cu, Cd and Pb concentration in spruce needles collected in the area of Gdansk and Gdynia in Northern Poland

Environmental Protection and Natural Resources, 2018
The aim of the investigation was to assess the utility of spruce needles as a potential material to be used for monitoring the contamination level of the environment of Tricity agglomeration (represented by Gdansk and Gdynia).
Konieczyński Paweł, Moszczyński Jan, Wesołowski Marek   +2 more
doaj   +1 more source

Micromechanical Characterization of 316L‐V4E Steel Transitions Produced by Electron Beam Powder Bed Fusion with Dual‐Hopper Alternating Layer Strategy

Advanced Engineering Materials, EarlyView.
This work applies High‐Speed Nanoindentation to study multi‐material transitions in powder bed fusion–electron beam melting components. The aim is to assess the mechanical gradients and interfacial behavior between American iron and steel institute 316L stainless steel and V4E tool steel in additively manufactured structures.
Laia Ortiz‐Membrado, William Sjöström, Francesc Barberà Flichi, Carlos Botero, Anton S. Tremsin, Antonio Mateo, Emilio Jiménez‐Piqué   +6 more
wiley   +1 more source

Density functional theory for colloidal mixtures of hard platelets, rods, and spheres

, 2005
A geometry-based density functional theory is presented for mixtures of hard spheres, hard needles and hard platelets; both the needles and the platelets are taken to be of vanishing thickness.
Ansgar Esztermann, Hendrik Reich, Matthias Schmidt, P. Bryk, P. G. Bolhuis, R. Evans   +5 more
core   +1 more source

Microcellular Poly (Ethylene‐Co‐Vinyl Acetate)/Lignin Nanocomposites for Soft Ferroelectrets

Advanced Engineering Materials, EarlyView.
Lignin valorization for advanced porous polymer nanocomposites development and an upscaling route for continuous manufacturing of soft ferroelectrets for energy harvesting are studied. This work examines the role of lignin and carbon nanotubes (CNT) in modifying the mechanical, dielectric, and ferroelectret properties of poly (ethylene‐co‐vinyl acetate)
Yuchen Lian, Zihe Li, Chris Bowen, James Roscow, Alan M. Wemyss, Chaoying Wan   +5 more
wiley   +1 more source

Multimedia arts learning: connecting STEAM among special education students

Discover Education
This qualitative case study explored the integration of Multimedia Arts into Science, Technology, Engineering, and Mathematics (STEM) education, transforming it into Science, Technology, Engineering, Arts, and Mathematics (STEAM) for special education ...
Sahar Aghasafari, Tim Needles, Mark Malloy   +2 more
doaj   +1 more source

n-Alkanes in the needle waxes of Pinus heldreichii var. pančići [PDF]

Journal of the Serbian Chemical Society, 2010
This is the first report of n-alkanes in needle epicuticular waxes of the variety Bosnian pine, Pinus heldreichii var. pančići. n-Hexane extracts of needle samples, originating from seven isolated localities in Serbia, were analysed by gas chromatography
BILJANA NIKOLIĆ, VELE TEŠEVIĆ, IRIS ĐORĐEVIĆ, MILKA JADRANIN, MARINA TODOSIJEVIĆ, PETAR D. MARIN, SRĐAN BOJOVIĆ   +6 more
doaj  

Estimated quantification of residual volume in vaccines supplies and its impact on the Brazilian health system [PDF]

Anais da Academia Brasileira de Ciências
Between 2017 and 2021, the Brazilian Unified Health System (BUHS) administered a total of 527,903,302 doses of immunizations. Each immunization results in the presence of a residual volume (RV) due to syringe dead space (DS).
YAGO MARCOS PESSOA-GONÇALVES, ANA LUCIA G. DE JESUS, HENRIQUE C.P. CARVALHO, CHAMBERTTAN S. DESIDÉRIO, RAFAEL O. TREVISAN, WESLLEY G. BOVI, MARCOS VINÍCIUS DA SILVA, CARLO JOSÉ F. OLIVEIRA   +7 more
doaj   +1 more source

Ion sputter textured graphite [PDF]

, 1982
A specially textured surface of pyrolytic graphite exhibits extremely low yields of secondary electrons and reduced numbers of reflected primary electrons after impingement of high energy primary electrons. An ion flux having an energy between 500 eV and
Curren, A. N., Forman, R., Sovey, J. S., Wintucky, E. G.   +3 more
core   +1 more source

3D‐Printable Near‐Infrared‐Responsive Microscale Cantilever made of the Composite Consisting of Ceramic Particles and Graphene Flakes

Advanced Engineering Materials, EarlyView.
A near infrared‐responsive microscale cantilever is developed using a 3D‐printable composite based on photocurable resin consisting of sepiolite and graphene flakes. The material absorbs 1064 nm light, causing shape transformation with an average displacement of 1.3 mm in 1.7 s. Displacement is measured via video recording.
Karolina Laszczyk, Weronika Chuda, Piotr Kamedulski, Damian Nowak   +3 more
wiley   +1 more source