Results 91 to 100 of about 1,709,689 (401)

Additive Manufacturing of Gradient Stiffness Honeycombs Using Thermoplastic Polyurethane Composite Material Variations

open access: yesAdvanced Engineering Materials, EarlyView.
By combining porous, solid, and carbon fiber‐reinforced thermoplastic polyurethane within a single 3D printed honeycomb structure, this current work achieved precise control over spatial stiffness while ensuring strong interlayer adhesion. The findings demonstrate enhanced energy absorption and densification strain, outperforming traditional uniform ...
Savvas Koltsakidis   +2 more
wiley   +1 more source

Isotropic pyrolytic carbons [PDF]

open access: yes, 1972
Depositing carbon on high-temperature substrate that is kept in motion by vibration produces isotropic pyrolytic graphite or carbon without using fluidized ...
Shimizu, H.
core   +1 more source

Process parameter selection and optimization of laser powder bed fusion for 316L stainless steel: A review

open access: hybrid, 2022
Nissar Ahmed   +3 more
openalex   +1 more source

Liquid Crystal Elastomers Under Confinement: A Review of Template‐Based Fabrication and Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Template‐assisted confinement offers powerful ways to control the alignment, structure, and function of liquid crystal elastomers. This review highlights several templating strategies and details how geometry and interfaces shape material responses.
Meng Zhang   +7 more
wiley   +1 more source

Raised Beds for Vegetable Production in Urban Agriculture

open access: yesUrban Agriculture & Regional Food Systems, 2018
Raised beds are commonly used in urban agriculture, but crop production benefits have not been well studied. The objective of this 2-yr field experiment in Illinois was to determine the effects of urban production ...
Elizabeth A. Miernicki   +2 more
doaj   +1 more source

An investigation of particle mixing in a gas-fluidized bed [PDF]

open access: yes, 1968
Mechanism for particle movement in gas-fluidized beds was studied both from the theoretical and experimental points of view.
Carlson, R. E., Gabor, J. D.
core   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi   +5 more
wiley   +1 more source

Rotary plant growth accelerating apparatus [PDF]

open access: yes, 1975
Rotary plant growth accelerating apparatus for increasing plant yields by effectively removing the growing plants from the constraints of gravity and increasing the plant yield per unit of space is described.
Dedolph, R. D.
core   +1 more source

Estimated Emergency and Observational/Quarantine Capacity Need for the US Homeless Population Related to COVID-19 Exposure by County; Projected Hospitalizations, Intensive Care Units and Mortality [PDF]

open access: yes, 2020
This report estimates the potential hospitalization, ICU use and mortality rates associated with COVID-19 infection among the homeless population in the United States, as well as unmet need for emergency and observational/quarantine beds/units.
Byrne, Thomas   +4 more
core   +1 more source

Prediction of the Thermal Conductivity of Beds Which Contain Polymer Coated Metal Particles [PDF]

open access: yes, 1990
Structural parts of ceramics or metals can, in principle, be made by laser sintering polymer coated ceramic or metal powders, followed by conventional methods for removing the binder and sintering in ovens.
Badrinarayan, B., Barlow, J.W.
core   +1 more source

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