Piezoelectric tuning fork based mass measurement method as a novel tool for determination of antibiotic activity on bacterial biofilm

2012 ◽  
Vol 175 ◽  
pp. 34-39 ◽  
Author(s):  
Grzegorz Gula ◽  
Karol Waszczuk ◽  
Tomasz Olszak ◽  
Joanna Majewska ◽  
Jolanta Sarowska ◽  
...  
Keyword(s):  
Measurement Method ◽  
Tuning Fork ◽  
Mass Measurement ◽  
Antibiotic Activity ◽  
Bacterial Biofilm

Investigation on Measurement Method of Weight Volume Based on Acoustics

2012 ◽  
Vol 487 ◽  
pp. 816-820 ◽  
Author(s):  
Wang Jian ◽  
Chang Qing Cai ◽  
Zhang Yue ◽  
Man Hong Hu ◽  
Xiao Lei Wang ◽  
...  
Keyword(s):  
Measurement System ◽  
Measurement Method ◽  
Mass Measurement ◽  
Accurate Method ◽  
Uncertainty Of Measurement ◽  
Measuring Volume ◽  
Hydrostatic Method ◽  
Complicated Process ◽  
Class E

The measurement value of weight volume is important for correcting buoyancy influence in the mass measurement. Traditional measurement method of weight volume is hydrostatic method. It is the most accurate method currently, but it is a complicated process requiring the weight to be wetted in a reference fluid. To eliminate the influence of liquid against weight mass in the determination of weight volume of the hydrostatic method, the measurement method of weight volume based on acoustics is introduced in the paper. The results from 1 kg to 20 kg show accuracy of the measurement system is enough to measuring volume of class E weight. The relative extend uncertainty of measurement method of weight volume based on acoustics is less than 8×10-4.

scholarly journals Piezoelectric Tuning Fork Mass Sensors as a Novel Tool for Determination of Antibiotic Activity on Pseudomonas Aeruginosa Biofilm

2011 ◽  
Vol 25 ◽  
pp. 980-983 ◽  
Author(s):  
G. Gula ◽  
K. Waszczuk ◽  
T. Olszak ◽  
J. Majewska ◽  
T. Gotszalk ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Tuning Fork ◽  
Antibiotic Activity ◽  
Mass Sensors

scholarly journals A New Test of Filterability for Unprocessed Wines Evaluation of the Enzyme Efficiency

2021 ◽  
Vol 10 (2) ◽  
pp. 55-66
Author(s):  
Amélie Vallet-Courbin ◽  
Soizic Lacampagne ◽  
Rose Marie Canal-Llauberes ◽  
Sigolène Mattalana Malzieu ◽  
Tihomir Kanev ◽  
...  
Keyword(s):  
Suspended Matter ◽  
Measurement Method ◽  
Membrane Filtration ◽  
Enzyme Treatment ◽  
Filtration Process ◽  
Enzyme Efficiency ◽  
Different Types ◽  
Definition Of ◽  
Selection Of

A new Test of Filterability has been developed. Measurements carried out with different types of wines indicate that the new filterability index is a useful tool for understanding and predicting the propensity to fouling of treated or untreated wines, e.g. with or without enzyme addition. The measurement method used in the Test of Filterability, requires only one type of membrane for all types of wine, and uses the same equipment as the traditional Fouling Index. Numerous trials have demonstrated that the filtration of wines is governed by standard blocking law. The definition of the new Test of Filterability, based on this filtration law, is proposed. The choice of membrane and the selection of the optimal pore size were based on the results of the experiments. Current methods used for the determination of fouling properties in wine filtration have been developed for the membrane filtration of small quantities of suspended matter. Enzyme treatment is a process often used in wine clarification. The new Test of Filterability indicates the best conditions for the filtration of all types of wines. The test is easy to implement and has been validated with various wines. This new Test of Filterability is an important tool for winemakers as it constitutes a simplified test of a wine's filterability. The new test may also be used to determine the filtration process that is best adapted to each wine while reducing the number of operations. The same approach may be adopted for the filtration of other liquids. 

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