Determination of soil biodegradation half-lives from simulation testing under aerobic laboratory conditions: A kinetic model approach

2008 ◽  
Vol 156 (1) ◽  
pp. 99-105 ◽  
Author(s):  
Michael Matthies ◽  
Johannes Witt ◽  
Jörg Klasmeier
Keyword(s):  
Kinetic Model ◽  
Laboratory Conditions ◽  
Soil Biodegradation ◽  
Simulation Testing ◽  
Model Approach

Determination of cores electrification during the flow in the modified Wurster apparatus

2016 ◽  
Vol 1 (20) ◽  
pp. 5-15
Author(s):  
Wojciech Ludwig ◽  
Tadeusz Mączka
Keyword(s):  
Measurement System ◽  
Charge Accumulation ◽  
Laboratory Conditions ◽  
Pharmaceutical Materials

The purpose of this paper was presentation of the value of cores electrification during their flow in the modified Wurster apparatus, applied for dry encapsulation of pharmaceutical materials. Previous works of the authors dealt with vulnerability of the particles of different diameter, produced by SYNTAPHARM (Cellets 1000, 700 and 100) on electrification in laboratory conditions. The presented work gives the results of examination on particles electrification in real conditions of their stable circulation in a column. The measurement system, that was applied, allowed determination of electrification potential and electrification current. Those quantities, which are the measures of charge accumulation on cores were determined for several particles (Cellets 1000, 700 and 500) with the different humidity, for different mass of the bed and spouting gas velocities.

Residue Desulfurization: A Kinetic Model Approach

2007 ◽  
Vol 28 (3) ◽  
pp. 383-389
Author(s):  
K. Le Lannic ◽  
I. Guibard
Keyword(s):  
Kinetic Model ◽  
Model Approach

scholarly journals Evaluation of Usefulness of the Designed Laboratory Photobioreactor for Microalgae Cultivation in Controlled Conditions

2016 ◽  
Vol 20 (1) ◽  
pp. 13-22
Author(s):  
Beata Brzychczyk ◽  
Zbigniew Kowalczyk ◽  
Jan Giełżecki
Keyword(s):  
Culture Medium ◽  
Dry Mass ◽  
Biomass Growth ◽  
Microalgae Cultivation ◽  
Freshwater Microalgae ◽  
Laboratory Conditions ◽  
Medium Concentration ◽  
Controlled Conditions ◽  
The Impact

AbstractThe objective of the paper was to analyse the use of the designed photobioreactor for freshwater microalgae cultivation in the controlled laboratory conditions. The work covered the design and construction of photobioreactors (PBR) and setting up comparative cultivations of freshwater microalgae chlorelli vulgaris along with determination of the biomass growth intensity for a varied amount of supplied culture medium. It was found out that the constructed PBR may be used for microalgae cultivation in the controlled conditions. The impact of the culture medium amount on the growth of chlorelli vulgaris was proved. As a result of the increase of culture medium concentration to 30.1-120.4 ml·l−1 of water, dry mass in photobioreactorsincreased respectively from 1.33 g·dm−3 to 4.68 g·dm−3.

scholarly journals Determination of mechanical properties of soil under laboratory conditions

2014 ◽  
Vol 60 (Special Issue) ◽  
pp. S66-S69 ◽  
Author(s):  
V. Malý ◽  
M. Kučera
Keyword(s):  
Mechanical Properties ◽  
Penetration Depth ◽  
Measuring Device ◽  
Laboratory Conditions ◽  
Measuring Network ◽  
Set Up ◽  
Different Diameters ◽  
Different Levels ◽  
Properties Of Soil

This paper presents the mechanical properties of soil. In order to determine the properties of soil under laboratory conditions, a special measuring device was constructed, viz. a bevameter. Two types of soil with different levels of moisture were examined and their mechanical properties were determined. Measurements were taken of non-compressed soil. A measuring network was set up, consisting of measuring and recording devices. In the course of measuring, the force and penetration depth of the pressing plate were recorded simultaneously. Three different diameters of pressing plate were used, namely 38, 50 and 70 mm. The pressure on the contact area was calculated after completion of the measurements, and the relationships between pressure and penetration depth were presented graphically.

scholarly journals EFEKTIVITAS BALI GO LIVE SEBAGAI MEDIA PROMOSI DIGITAL PARIWISATA BALI

Jurnal IPTA ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 16
Author(s):  
Ni Luh Putu Septiani ◽  
I Nyoman Sudiarta ◽  
Putu Agus Wikanatha Sagita
Keyword(s):  
Sampling Method ◽  
Descriptive Analysis ◽  
Validity And Reliability ◽  
Epic Model ◽  
Quantitative Descriptive Analysis ◽  
Analysis Technique ◽  
Effectiveness Measurement ◽  
Quantitative Descriptive ◽  
Model Approach

The purpose of this research is to know the effectiveness of using Bali Go Live Channel as media promotion digital of Bali Tourism by using EPIC Model approach. Effectiveness measurement is done by obtaining value of empathy dimension, persuation dimension, impact dimension, and communication dimension from digital promotion conducted by Bali Go Live Channel to know how effective promotion is done. Determination of samples in this study using accidental sampling method as much as 100 respondents tourists. Data collection techniques used questionnaires and interviews. Data analysis technique in this research is quantitative descriptive analysis, validity and reliability analysis, simple tabulation analysis, and EPIC Model analysis. From the results of quantitative descriptive analysis can be seen that the measurement of dimensions empathy, dimension persuasion, dimension impact, and dimension communication entered in the range of effective scale. The results of this study show the use of Bali Go Live Channel as a digital promotion media of Bali tourism declared effective. This is shown from the EPIC Rate of 3.98 which fall into the effective category.

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