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Material efficiency: providing material services with less material production. [PDF]
Philos Trans A Math Phys Eng Sci, 2013 Material efficiency, as discussed in this Meeting Issue, entails the pursuit of the technical strategies, business models, consumer preferences and policy instruments that would lead to a substantial reduction in the production of high-volume energy-intensive materials required to deliver human well-being.
Allwood JM +3 more
europepmc +3 more sources
Vision Sensing-Based Online Correction System for Robotic Weld Grinding
Chinese Journal of Mechanical Engineering, 2023 The service cycle and dynamic performance of structural parts are affected by the weld grinding accuracy and surface consistency. Because of reasons such as assembly errors and thermal deformation, the actual track of the robot does not coincide with the
Jimin Ge +5 more
doaj +1 more source
Crystals, 2022 The effects of droplets filling the molten pools during the double-sided laser beam welding (DSLBW) of T-joints was established. The dynamic behavior of the keyhole and the molten pool under different droplet filling modes were analyzed.
Jin Peng +7 more
doaj +1 more source
Efficiently Updating Materialized Views [PDF]
ACM SIGMOD Record, 1986 Query processing can be sped up by keeping frequently accessed users' views materialized. However, the need to access base relations in response to queries can be avoided only if the materialized view is adequately maintained. We propose a method in which all database updates to base relations are first filtered to remove from ...
Jose A. Blakeley +2 more
openaire +1 more source
Counterintuitive example on relation between ZT and thermoelectric efficiency [PDF]
, 2020 The thermoelectric figure of merit ZT, which is defined using electrical conductivity, Seebeck coefficient, thermal conductivity, and absolute temperature T, has been widely used as a simple estimator of the conversion efficiency of a thermoelectric heat
Choi, Eun-Ae +5 more
core +2 more sources
A Comparative Study on Asperity Peak Modeling Methods
Chinese Journal of Mechanical Engineering, 2021 The peak identification scheme based method (three-point definition) and the spectral moments based method (spectral moment approach) are both widely used for asperity peak modeling in tribology.
Wei Zhou +3 more
doaj +1 more source
Nature Communications, 2023 Light-based 3D bioprinting is now employed widely to fabricate geometrically complex constructs for various biomedical applications. However, the inherent light scattering defect creates significant challenges in patterning dilute hydrogels to form high ...
Ning He +11 more
doaj +1 more source
Research progress in preparation and processing technology of C/SiC composites
Journal of Aeronautical Materials, 2021 Carbon fiber reinforced silicon carbide ceramic based (C/SiC) composites are widely used in industrial, aerospace and other fields due to their high strength, hardness and wear resistance.
JIAO Haowen, CHEN Bing, ZUO Bin
doaj +1 more source
Numerical Simulation of Molten Pool Dynamics in Laser Deep Penetration Welding of Aluminum Alloys
Crystals, 2022 In this paper, the numerical simulation of molten pool dynamics in laser deep penetration welding of aluminum alloys was established based on the FLUENT 19.0 software.
Jin Peng +6 more
doaj +1 more source
Evaluation of Chitosan Derivatives Modified Mesoporous Silica Nanoparticles as Delivery Carrier
Molecules, 2021 Chitosan is a non-toxic biological material, but chitosan is insoluble in water, which hinders the development and utilization of chitosan. Chitosan derivatives N-2-Hydroxypropyl trimethyl ammonium chloride (N-2-HACC) and carboxymethyl chitosan (CMCS ...
Qi Li +6 more
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