Results 31 to 40 of about 23,310 (265)

Mode of life and hydrostatic stability of orthoconic ectocochleate cephalopods: Hydrodynamic analyses of restoring moments from 3D printed, neutrally buoyant models [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Theoretical 3D models were digitally reconstructed from a phragmocone section of Baculites compressus in order to investigate the hydrostatic properties of the orthoconic morphotype.
David J. Peterman   +3 more
doaj   +1 more source

Sorption of petroleum products with natural sorbents

open access: yesАлматы технологиялық университетінің хабаршысы, 2021
This article presents the results of a study of cleaning the water surface from contamination with petroleum products. Kulantaussky vermiculite, the birthplace of the Turkestan region, was studied as a sorbent.
A. K. Iskendirova   +2 more
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

The Magic of Buoyancy and Hydrostatics –Buoyancy and Effective Forces

open access: yesModern Applied Science, 2017
More than 2000 years after Archimedes formulated his famous law, there is today still some disagreement as to the physical understanding and actual acceptance and application of Archimedes’ Principle. This paper is prepared in the support of the full validity of Archimedes’ Principle, always calculating buoyancy as the weight of displaced fluid ...
Arnfinn Nergaard   +2 more
openaire   +2 more sources

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič   +7 more
wiley   +1 more source

Elastic Properties and Thermal Expansion Behavior of a Polycrystalline VMnFeCoNi High‐Entropy Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
The high‐entropy alloy (HEA) V20Mn20Fe20Co20Ni20 (composition in at.%) can be made single‐phase face‐centered cubic (FCC) when annealed above 1338 K followed by water quenching. In this state, the alloy exhibits the greatest strength‐ductility combination of any quinary single‐phase FCC HEA.
Guillaume Laplanche   +3 more
wiley   +1 more source

On the Role of Psychological Health and Buoyancy in EFL Teachers' Professional Commitment

open access: yesFrontiers in Psychology, 2022
Teachers have the main role in cultivating the future members of the community by their effort in the educational space, and indeed, the quality of education would not be accomplished without the ultimate determinations of enthusiastic and committed ...
Manman Li
doaj   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

Modeling Development of a Diamagnetically Stabilized Magnetically Levitated Gravimeter

open access: yesSensors
The aim of this work is to create a new type of gravimeter that can function effectively in the challenging conditions of space, specifically on the surfaces of planets and moons.
Kazi Rifat Bin Rafiq   +5 more
doaj   +1 more source

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