scholarly journals Determination of Optimum Operating Conditions of Different Types of Intercooler Designs in Supercharged Engines

2021 ◽  
Author(s):  
Cengiz ÖNER ◽  
Ali ÖZ
Keyword(s):  
Operating Conditions ◽  
Optimum Operating ◽  
Different Types

scholarly journals Analytical application of acidic victoria blue 4R mixture with KBrO3 for the kinetic determination of traces of antimony(III) by spectrophotometry

2012 ◽  
Vol 31 (1) ◽  
pp. 29
Author(s):  
Violeta Mitić ◽  
Snežana Nikolić-Mandić ◽  
Vesna Stankov-Jovanović
Keyword(s):  
Reaction Rate ◽  
Kinetic Method ◽  
Operating Conditions ◽  
Rate Equations ◽  
Optimum Operating ◽  
Acid Media ◽  
Kinetic Determination ◽  
Hydrochloric Acid Media ◽  
Optimized Conditions

The present paper describes a simple, selective and sensitive kinetic method for the determination of trace amounts of Sb(III) in the presence of Sb(V) based on its inhibition effect on the redox reaction between bromate and Victoria blue 4R (V.B. 4-R) in hydrochloric acid media. The reaction was followed spectrophotometrically by measuring the decrease in the absorbance of V.B. 4-R at 596.3 nm. Optimum operating conditions regarding reagent concentrations were established. The optimized conditions yielded a theoretical detection limit of 1.30·10‒8 g cm–3 Sb(III) based on the 3S0 criterion. The method allows the determination of Sb(III) in the range of 5·10‒8 ‒ 1.1·10‒6 g cm–3. The effects of certain foreign ions the reaction rate were determined for an assessment of the selectivity of the method. The kinetic parameters of the reaction were reported, and the rate equations were suggested. The results were validated statistically and through recovery studies. The proposed method has been successfully applied to the determination of Sb(III) in various model and real samples.

scholarly journals Quantitative analysis of ibuprofen in pharmaceuticals and human control serum using kinetic spectrophotometry

2008 ◽  
Vol 73 (8-9) ◽  
pp. 879-890 ◽  
Author(s):  
Snezana Mitic ◽  
Gordana Miletic ◽  
Aleksandra Pavlovic ◽  
Biljana Arsic ◽  
Valentina Zivanovic
Keyword(s):  
Rapid Determination ◽  
Pharmaceutical Formulations ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Kinetic Spectrophotometry ◽  
Human Control ◽  
Control Serum ◽  
Tangent Method ◽  
Kinetic Spectrophotometric

The aim of this work was to develop a new kinetic spectrophotometric method for the determination of ibuprofen in pharmaceutical formulations. Ibuprofen was determined in an acidic ethanolic medium by monitoring the rate of appearance of 1-nitroso-2-naphthol, resulting from the displacement by ibuprofen of Co(III) from the tris(1-nitroso-2-naptholato)cobalt(III) complex. The optimum operating conditions regarding reagent concentrations and temperature were established. The tangent method was adopted for constructing the calibration curve, which was found to be linear over the concentration range 0.21-1.44 and 1.44-2.06 ?g ml-1. The optimized conditions yielded a theoretical detection limit of 0.03 ?g ml-1 based on the 3.3 S0 criterion. The interference effects of the usual excipients of powdery drugs, foreign ions and amino acids on the reaction rate were studied in order to assess the selectivity of the method. The developed procedure was successfully applied for the rapid determination of ibuprofen in commercial pharmaceutical formulations and human control serum. The unique features of this procedure are that the determination can be performed at room temperature and the analysis time is short. The newly developed method is simple, inexpensive and efficient for use in the analysis of a large number of samples.

scholarly journals Influence of NaCl on the polymerization of vinyl monomers by the suspension process

2019 ◽  
pp. 19-23
Author(s):  
Erika Montero ◽  
David Contreras-López ◽  
Rosalba Fuentes ◽  
María Del Rosario Galindo
Keyword(s):  
Batch Reactor ◽  
Research Work ◽  
Chemical Properties ◽  
Polymeric Materials ◽  
Operating Conditions ◽  
Suspension Process ◽  
Different Types ◽  
Physical And Chemical ◽  
And Chemical Properties

The production of artificial polymers is, today, one of themost important activities of the chemical industry, polymersare widely used in everyday life, as, there are different types of polymers, they can be used for different uses. These polymeric materials have unique mechanical, physical and chemical properties, which most other materials do not possess, not to mention that its cost is lower than the other materials. The present research work focuses on the determination of optimal operating conditions for the polymerization of styrene and methyl methacrylate in a Batch reactor, as well as the influence of inorganic salt in this case NaCl in the performance of reaction and in the size of the material polymer, through the process of suspension using a synthetic route of polymerization by radical free conventional (FRP), where viscometry to the polymeric material testing was performed for this way characterize it, and to determine factors of interest such as the molecular weight, etc.

A novel comprehensive procedure for determination of optimum operating conditions for cleaner energy production system

2018 ◽  
Vol 42 (10) ◽  
pp. 3339-3350 ◽  
Author(s):  
Yuhao Huang ◽  
Li Shui ◽  
Saeed Asghari ◽  
Paweena Prapainainar ◽  
Akhil Garg ◽  
...  
Keyword(s):  
Production System ◽  
Energy Production ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Energy Production System

Contribution to the Identification and Quantitative Determination of Carbon Black in Vulcanizates by Thermogravimetric Analysis

1976 ◽  
Vol 49 (4) ◽  
pp. 1060-1067 ◽  
Author(s):  
R. Pautrat ◽  
B. Metivier ◽  
J. Marteau
Keyword(s):  
Quantitative Analysis ◽  
Thermogravimetric Analysis ◽  
Carbon Black ◽  
Quantitative Determination ◽  
Elementary Particles ◽  
Operating Conditions ◽  
Different Types ◽  
Nitrile Rubbers ◽  
Good Repeatability

Abstract It has been verified that, in a number of cases, thermogravimetric analysis permits quantitative determination and identification of carbon blacks in the free state or in vulcanized compounds. The proper operating conditions can give sufficiently good repeatability and adequate precision for most routine analyses. As is the case in other methods for determining the loading, numerous difficulties were encountered with elastomers which graphitize on heating. However, quantitative analysis of black in nitrile rubbers remains possible, but the identification of different types of black is very difficult. The authors propose to continue this study, particularly into the new families of blacks, primarily into the function of the diameter of their elementary particles and their degree of structure.

Dewatering of Golden Horn sludge with geotextile tube and determination of optimum operating conditions: A novel approach

2021 ◽  
pp. 1-13
Author(s):  
Ümit Karadoğan ◽  
Gökhan Çevikbilen ◽  
Sevde Korkut ◽  
Mehmet Emin Pasaoglu ◽  
Berrak Teymur
Keyword(s):  
Operating Conditions ◽  
Optimum Operating ◽  
Geotextile Tube ◽  
Golden Horn ◽  
Novel Approach
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