Results 1 to 10 of about 2,529,348 (175)

Expansion of bovine skeletal muscle stem cells from spinner flasks to benchtop stirred-tank bioreactors for up to 38 days

open access: yesFrontiers in Nutrition, 2023
IntroductionSuccessful long-term expansion of skeletal muscle satellite cells (MuSCs) on a large scale is fundamental for cultivating animal cells for protein production.
Dimitrios Tzimorotas   +6 more
doaj   +1 more source

A type of symmetrical differential lever displacement amplification mechanism

open access: yesMechanics & Industry, 2021
The paper proposes a type of symmetrical flexure hinge displacement amplification mechanism, which is based on the differential lever to effectively improve the displacement output stroke of the PZT and reduce the additional displacement.
Fan Wei   +3 more
doaj   +1 more source

Efficient Process Optimization [PDF]

open access: yesConcurrent Engineering, 2003
A computer-based system for modelling and optimizing processes is presented. The Design Structure Matrix (DSM) process representation was used to model the processes due to its compact, generic and easily quantifiable nature. The system is capable of calculating a number of process performance metrics that are focussed towards determining the degree of
Whitfield, R. I.   +3 more
openaire   +2 more sources

An experimental investigation of the mechanical variables influence on soybean biodiesel production using the response surface methodology

open access: yesRevista Brasileira de Engenharia de Biossistemas, 2022
Biodiesel is a fuel derived from renewable sources such as vegetable oils, animal fats, or residual oils. Although it is a potential source of energy, the efficiency of the production of this fuel depends on several factors, including variables ...
Wedja Timóteo Vieira   +5 more
doaj   +1 more source

Factorial design and surface method to optimization ethylic biodiesel production from chicken wastes [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2021
To produce biodiesel, one of the most important factors is the quality of the oil used in the production. However, other factors such as price and availability should also be taken into consideration.
Silva Neto Daniel Luiz da   +3 more
doaj   +1 more source

Numerical study on instantaneous heat transfer characteristics of AC arc-fault

open access: yesAIP Advances, 2021
Studying the heat transfer characteristics of alternating current (AC) arc-fault to electrodes is a key issue in electrical fires. In this paper, an instantaneous heat transfer numerical model of AC arc-fault is developed based on the magneto ...
Qirong Wu   +4 more
doaj   +1 more source

Optimal Thermodynamic Processes For Gases [PDF]

open access: yesEntropy, 2020
In this paper, we consider an optimal control problem in the equilibrium thermodynamics of gases. The thermodynamic state of the gas is given by a Legendrian submanifold in a contact thermodynamic space. Using Pontryagin’s maximum principle, we find a thermodynamic process in this submanifold such that the gas maximizes the work functional.
Alexei Kushner   +2 more
openaire   +4 more sources

Research on Waste Plastics Classification Method Based on Multi-Scale Feature Fusion

open access: yesSensors, 2022
Microplastic particles produced by non-degradable waste plastic bottles have a critical impact on the environment. Reasonable recycling is a premise that protects the environment and improves economic benefits. In this paper, a multi-scale feature fusion
Zhenxing Cai   +5 more
doaj   +1 more source

Impact and Optimization of the Conditions of Extraction of Phenolic Compounds and Antioxidant Activity of Olive Leaves (Moroccan picholine) Using Response Surface Methodology

open access: yesSeparations, 2023
The Moroccan picholine tree’s leaves contain phenolic compounds that benefit human health. However, the amount and type of these compounds can vary based on factors such as the extraction method and conditions.
El Mustapha El Adnany   +7 more
doaj   +1 more source

The relationship between patient satisfaction and visual and optical outcome after bilateral implantation of an extended depth of focus multifocal intraocular lens

open access: yesAdvances in Ophthalmology Practice and Research, 2022
Purpose: To evaluate patient satisfaction after implantation of the Tecnis Symfony multifocal intraocular lens (MIOL). Methods: 120 eyes of 60 subjects with senile cataract were bilaterally implanted with the Tecnis Symfony IOL. Follow-up examination was
Kata Miháltz   +3 more
doaj   +1 more source

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