Results 121 to 130 of about 1,661,808 (287)

Nanometer Layer Coating to Lactose Particles for Optimization of Dexamethasone Pulmonary Delivery

Advanced Science, EarlyView.
Nanometer layer coating (NLC) was investigated and its mechanism illustrated by advanced characterization techniques. The effects and application for the inhalation of dexamethasone (DEX) were demonstrated through in vitro and in vivo evaluation. This approach increased DEX bioavailability and enabled the dose to be reduced to 1/30 of the intravenous ...
Qin Nie, Jiahe Liu, Xiangyu Zhao, Siying Yang, Han Sun, Bingqian Jia, Xiaohong Ren, Xintao Chen, Lixin Sun, Li Wu, Caifen Wang, Jiwen Zhang   +11 more
wiley   +1 more source

Selective Laser Sintering of a Stainless Steel Powder [PDF]

, 2003
The research presented in this thesis was part of a larger collaborated project (LastForm Programme) to research engineering solutions for the rapid manufacture of large scale (0.5m – 5.0m in length) low, medium and high temperature tooling (from room ...
Hauser, Carl
core   +2 more sources

A Comparative Study of the As-Built Microstructure of a Cold-Work Tool Steel Produced by Laser and Electron-Beam Powder-Bed Fusion

Metals
A high-alloy (Cr-Mo-V) cold-work tool steel was manufactured by laser powder-bed fusion (PBF-LB) without preheating and by electron-beam powder-bed fusion (PBF-EB) with the build temperature set at 850 °C.
Mikael Åsberg, Fengxiang Lin, Patrik Karlsson, Christos Oikonomou, Emil Strandh, Markus Uhlirsch, Pavel Krakhmalev   +6 more
doaj   +1 more source

Revealing the Underlying Mechanisms in Performance Enhancement of Shellular Lattice Electrodes During Anion Exchange Membrane Water Electrolysis Process

Advanced Science, EarlyView.
Micro laser powder bed fusion enables architected nickel shellular lattice gas diffusion layers for anion exchange membrane water electrolysis. Among regular open cell geometries, the Gyroid lattice promotes bubble release, convective reactant replenishment and continuous electron transport, delivering low overpotentials, enhanced charge transfer and ...
Tianxiao Niu, Rui Li, Xiao Chen, Deyong Sun, Tianyu Gao, Junhao Ding, Shuo Qu, Xu Song   +7 more
wiley   +1 more source

How small changes to methylated piperidinium cations impact the synthesis of zeolite SSZ‐39

AIChE Journal, EarlyView.
Abstract Here we report a synthesis study of SSZ‐39 with four different organic structure directing agents (OSDA). The goal was to determine how subtle changes to the OSDA architecture impact crystallization kinetics, material composition, and other properties.
Onyinyechukwu Ukagha, Daniel F. Shantz
wiley   +1 more source

Life cycle assessment of additively manufactured elastocaloric Ni-Ti heat pump/refrigeration components and the effect of design geometry on the environmental impact categories

Results in Engineering
Elastocaloric Ni-Ti alloys offer solid-state heat pump and cooling applications. The environmental impact of elastocaloric Ni-Ti parts manufactured via powder bed fusion was assessed using life cycle assessment with the ReCiPe method.
Anesu Nyabadza, Karthikeyan Tamil, Lehar Asip Khan, Sujith S. Kumar, Corné Muilwijk, Greg McNamara, Kevin O'Toole, Lorna Fitzsimons, Dermot Brabazon   +8 more
doaj   +1 more source

Tomography of Laser Powder Bed Fusion Maraging Steel

Materials
The presence of defects in additive manufactured maraging steel is a widespread problem as its dependence on processing parameters significantly influences it. Using X-ray computed tomography, along with optical microscope data limited to 2D images, quantifies the internal porosity present on a compact tension sample typically employed in fatigue ...
Pablo M. Cerezo, Jose A. Aguilera, Antonio Garcia-Gonzalez, Pablo Lopez-Crespo   +3 more
openaire   +4 more sources

Detecting microscale surface imperfections in powder bed fusion through light scattering and machine learning – validation of inspection principles [PDF]

Microscale surface imperfections in laser beam powder bed fusion (PBF-LB) additively manufactured parts, such as balling, spattering, and surface pores, can substantially reduce component quality but are difficult to detect with current real-time ...
Hooshmand, Helia, Liu, Mingyu, Koca, Ahmet, Leach, Richard   +3 more
core   +1 more source

The Legislation for Providing Animal Access in Australian Residential Aged Care: It's Not a Zoo

Australian Journal of Social Issues, EarlyView.
ABSTRACT Providing meaningful animal contact to residential aged care facility (RACF) residents is problematic due to a lack of animal policies and National Guidelines. This paper examines how Australian Legislation could influence access to animal contact in RACFs and aims to answer the question, ‘Could current Legislation facilitate the development ...
Wendy Newton, Tania Signal, Jenni A. Judd   +2 more
wiley   +1 more source

Crystallographic Texture and Phase Transformation in Titanium Alloys Fabricated via Powder Bed Fusion Processes: A Comprehensive Review

Metals
Additive manufacturing (AM) of titanium alloys enables the production of complex, high-performance components, but the steep thermal gradients and rapid solidification involved make it challenging to control crystallographic texture and phase evolution ...
Rajesh Kannan Arasappan, Hafiz Muhammad Rehan Tariq, Ha-Seong Baek, Minki Kim, Tea-Sung Jun   +4 more
doaj   +1 more source