Results 61 to 70 of about 8,091,828 (309)

Skateboards as a Sustainable Recyclable Material

open access: yesRecycling, 2018
The exact number of skateboards manufactured every year is unknown, but it is estimated to be in the millions. Most skateboard decks are made from a high grade of maple (Acer spp.) veneer plywood and typically last only a few months before they break or ...
Dylan T. Willard, Joseph R. Loferski
doaj   +1 more source

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel   +2 more
wiley   +1 more source

THE SPECIFIC GRAVITY OF PORTLAND CEMENT. [PDF]

open access: yesMinutes of the Proceedings of the Institution of Civil Engineers, 1906
n ...
openaire   +2 more sources

Presentism and Quantum Gravity [PDF]

open access: yes, 2001
There is a philosophical tradition of arguing against presentism, the thesis that only presently existing things exist, on the basis of its incompatibility with fundamental physics.
Monton, Bradley
core  

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Potato response to potassium application rates and timing under semi-arid conditions

open access: yesAdvances in Horticultural Science, 2013
A two-year experiment (2004-2005) was conducted at Tal Amara Research Station in the Bekaa Valley of Lebanon to evaluate the influence of progressive application of K rates and application timing on yield, yield components and tuber quality of potato ...
F. Karam   +4 more
doaj   +1 more source

Low Specific Gravity Syndrome

open access: yesClinical Chemistry, 1968
Abstract Data strongly suggest that the longer patients have been treated in New Castle State Hospital, the higher the probability that they will demonstrate the low specific gravity syndrome. It is believed that a probably unrecognized alteration in human water metabolism among institutionalized patients who have chronic, severe ...
H W, Gillen, C E, Pippinger
openaire   +2 more sources

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon   +4 more
wiley   +1 more source

Specific Gravity Balance

open access: yes, 1920
Specific gravity balance, accession no.44; circa 1920 The specific gravity balance provides a measure of weight as a function of volume. Dr. Donald D.
The Rockefeller University
core   +1 more source

Physical properties of beech wood thermally modified in hot oil and in hot air at various temperatures

open access: yesMaderas: Ciencia y Tecnología, 2015
In this study, beech wood was treated in hot oil and in hot air to determine the differences in the effects of the two processes on the physical properties of the wood.
Bekir Cihad Bal
doaj  

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