scholarly journals Scale-up and On-line Monitoring of Gas-solid Systems Using Advanced and Non-invasive Measurement Techniques

2014 ◽  
Vol 83 ◽  
pp. 469-476 ◽  
Author(s):  
Muthanna Al-Dahhan ◽  
Shreekanta Aradhya ◽  
Faraj Zaid ◽  
Neven Ali ◽  
Thaar Aljuwaya
Keyword(s):  
Measurement Techniques ◽  
Scale Up ◽  
Non Invasive ◽  
On Line ◽  
Invasive Measurement

scholarly journals Methods of Assessing Degradation of Supercapacitors by Using Various Measurement Techniques

2019 ◽  
Vol 9 (11) ◽  
pp. 2311 ◽  
Author(s):  
Stanislaw Galla ◽  
Arkadiusz Szewczyk ◽  
Janusz Smulko ◽  
Patryk Przygocki
Keyword(s):  
Measurement Method ◽  
Measurement Techniques ◽  
Qualitative Evaluation ◽  
Measurement Methods ◽  
Qualitative Assessment ◽  
Non Invasive ◽  
Measurement Results ◽  
Qualitative Analyses ◽  
Invasive Measurement

This article presents the qualitative analyses of the construction of supercapacitor samples. The analyses are based on the suggested thermographic measurements as well as the technique of testing the inherent noise of the investigated element. The indicated assessment methods have been referred to the currently used parameters for the qualitative evaluation of supercapacitors. The approach described in this paper, which introduces additional parameters assessing worn out of supercapacitors, can be included in the so-called non-invasive measurement methods, which allow the assessment of the condition of the sample under test. This article presents the applied measurement stands and verifies of the applicability of measurement methods in relation to the currently used parameters allowing for the qualitative assessment of supercapacitors. The measurement method presented in this article was used to study prototypes of supercapacitors. The measurement results allow for more accurate characterization of the observed element. Conducted tests revealed, at the same time, that one of the proposed evaluation methods, based on measurements of inherent noise of tested supercapacitors, is a method predicting their degradation.

scholarly journals Using Colour Images for Online Yeast Growth Estimation

Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 894
Author(s):  
Elias August ◽  
Besmira Sabani ◽  
Nurdzane Memeti
Keyword(s):  
Measurement Techniques ◽  
Region Of Interest ◽  
Non Invasive ◽  
Model Predictions ◽  
Density Values ◽  
Colour Changes ◽  
Shake Flasks ◽  
Research Questions ◽  
Growth Estimation ◽  
Invasive Measurement

Automatisation and digitalisation of laboratory processes require adequate online measurement techniques. In this paper, we present affordable and simple means for non-invasive measurement of biomass concentrations during cultivation in shake flasks. Specifically, we investigate the following research questions. Can images of shake flasks and their content acquired with smartphone cameras be used to estimate biomass concentrations? Can machine vision be used to robustly determine the region of interest in the images such that the process can be automated? To answer these questions, 18 experiments were performed and more than 340 measurements taken. The relevant region in the images was selected automatically using K-means clustering. Statistical analysis shows high fidelity of the resulting model predictions of optical density values that were based on the information embedded in colour changes of the automatically selected region in the images.

scholarly journals Investigating the Effect of Different Drying Strategies on the Quality Parameters of Daucus carota L. Using Dynamic Process Control and Measurement Techniques

2021 ◽  
Author(s):  
Sharvari Raut ◽  
Rosalizan Md Saleh ◽  
Phil Kirchhofer ◽  
Boris Kulig ◽  
Oliver Hensel ◽  
...  
Keyword(s):  
Measurement Techniques ◽  
Specific Energy Consumption ◽  
Infrared Camera ◽  
Process Efficiency ◽  
Total Carotenoid ◽  
Rehydration Ratio ◽  
Daucus Carota L ◽  
Non Invasive ◽  
Temperature Controlled ◽  
Invasive Measurement

AbstractThe present work aims to improve the understanding of the effect of different drying strategies at varying temperatures on the dynamic drying behaviour and quality of organic products such as carrots using non-invasive measurement techniques. For this purpose, carrot slices of 3 mm thickness were dried under three different strategies namely air temperature controlled (A), product temperature controlled (P) and stepwise temperature controlled (S) at different temperatures (50 °C, 60 °C and 70 °C) to measure and analyse the changes in moisture content, colour, total carotenoid retention, water activity, rehydration ratio and specific energy consumption. From the investigation performed, it was incurred that the application of different drying strategies influences rather significantly both the product quality as well as the overall process efficiency. Modelling the drying curves deemed Page model to be a good fit for all the strategies with R2adj = 0.99 and RMSE = 0.01. The results also show that implementing strategy P not only led to shorter drying times but also led to higher total carotenoid retention within the samples (TCR = 0.59–0.73). Colour changes, however, were observed to be maximum with strategy P as compared to strategy A and strategy S. Furthermore, the use of a non-invasive measurement technique such as infrared camera proved to be reliable in order to detect the phase transition of the product during the drying process.

scholarly journals Aging‐related changes in swallowing, and in the coordination of swallowing and respiration determined by novel non‐invasive measurement techniques

2014 ◽  
Vol 15 (6) ◽  
pp. 736-744 ◽  
Author(s):  
Chin‐Man Wang ◽  
Ji‐Yih Chen ◽  
Chiung‐Cheng Chuang ◽  
Wen‐Chun Tseng ◽  
Alice MK Wong ◽  
...  
Keyword(s):  
Measurement Techniques ◽  
Non Invasive ◽  
Invasive Measurement

Non Invasive Measurement Techniques in Porous Media

1991 ◽  
pp. 883-921 ◽  
Author(s):  
S. A. Bories ◽  
M. C. Charrier-Mojtabi ◽  
D. Houi ◽  
P. G. Raynaud
Keyword(s):  
Porous Media ◽  
Measurement Techniques ◽  
Non Invasive ◽  
Invasive Measurement
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