Determination of rational process variables for multi-step centrifugal mills

The article presents the results of research on the determination of rational technological parameters for the production of chopped semi-products using emulsions from collagen-containing raw materials fermented by bacteria of the genus Lactobacillus. Water dosages are installed in the composition of chopped semi-finished products: 12% – with emulsions from pork skin and tails and 11% - with emulsion from connective tissue. Duration of ingredients mixing (5 minutes), sequence of raw materials laying during manufacture of articles, as well as duration of heat treatment of chopped semiproducts is determined: 25 minutes – during steaming (t = 95–100 °С), 20 minutes – during baking (t = 180 °C), 15 minutes – during frying (t = 110 °C), while recommended methods of bringing semifinished products to culinary readiness are steam treatment and baking, which allow for improved functional and technological (TUS – 79.3-81.8%, weight loss during heat treatment – 5.1–7.9%), structural and mechanical (PNS - 1413.9–1470.4 Pa) and organoleptic indicators (juiciness, appearance, consistency, taste, smell) of these products (9 points according to the 9-point system).

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Methodic tools to optimize marketing expenses of the innovatively active industrial enterprises in Ukraine

Problems and Perspectives in Management ◽

10.21511/ppm.14(1).2016.05 ◽

2016 ◽

Vol 14 (1) ◽

pp. 44-50 ◽

Cited By ~ 5

Author(s):

Oleg Olefirenko

Keyword(s):

Mathematic Model ◽

Machine Building ◽

Practical Implementation ◽

Industrial Enterprises ◽

Managerial Decisions ◽

Production Distribution ◽

Market Situation ◽

The Given ◽

Rational Process

The efficient sales policy of the machine building innovatively active enterprises is connected with its rational process financing. Optimal determination of innovative production distribution expenses is top-priority element to increase economic subject’s activity profitability and to increase its competitive positions at the market. Thus, planning of costs for innovatively active machine building enterprises sales has to be based on economic and rationally adaptive mathematic tools to industrial enterprises activity specific. Practical implementation of the mentioned task is possible owing to economic and mathematic model to plan costs for innovatively active enterprises production, which preconditions urgency of the given research. Besides the tools investigation is also urgent and it allows to foresee future expenses amounts for sales, demand for production and profit of the innovatively active industrial enterprise, behavior in future depending on market situation. The article deals with scientific and methodic approach to optimize distribution expenses of the innovatively active industrial enterprises in Ukraine. Economic and mathematic modeling methods allowed to formalize models to plan distribution expenses of innovatively active enterprise, demand and profits, that is prerequisite to form prognostications by proper directions. Practical implementation of the suggested scientific and methodic approach on the example of machine building enterprise in Ukraine results in confirmation of models correspondence and establishment of inefficiency to distinguish expenses. It gives evidence about necessity to optimize expenses of enterprise and to introduce active managerial decisions concerning its activity profitability growth

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Accurate determination of process variables in a solid-state fermentation system

Process Biochemistry ◽

10.1016/s0032-9592(96)00019-2 ◽

1996 ◽

Vol 31 (7) ◽

pp. 669-678 ◽

Cited By ~ 22

Author(s):

J.P. Smits ◽

A. Rinzema ◽

J. Tramper ◽

E.E. Schlösser ◽

W. Knol

Keyword(s):

Solid State ◽

Solid State Fermentation ◽

Accurate Determination ◽

Process Variables ◽

Fermentation System

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Statistical Determination of Plating Process Variables for Multilayer Ceramic Chip Capacitors

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1989.tb06074.x ◽

1989 ◽

Vol 72 (12) ◽

pp. 2279-2281 ◽

Cited By ~ 8

Author(s):

Doug A. Benm ◽

Carol J. Feltz ◽

Richard Haynes ◽

Steven C. Pinault

Keyword(s):

Process Variables ◽

Statistical Determination ◽

Multilayer Ceramic

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An Investigation of the Synthesis Parameters of the Reaction of Hydroxyapatite Precipitation in Aqueous Media

International Journal of Chemical Reactor Engineering ◽

10.2202/1542-6580.1778 ◽

2008 ◽

Vol 6 (1) ◽

Cited By ~ 4

Author(s):

João F Gomes ◽

Cristina C Granadeiro ◽

Miguel A Silva ◽

Milton Hoyos ◽

Rodrigo Silva ◽

...

Keyword(s):

Orthophosphoric Acid ◽

Aqueous Media ◽

Good Control ◽

Process Variables ◽

Synthesis Parameters ◽

Laboratory Reactor ◽

Size And Morphology ◽

Inorganic Components ◽

Orthophosphoric Acid Solution

Hydroxyapatite (HAP), described by the formula Ca10(PO4)6(OH)2, is one of the inorganic components of the hard tissues of living bodies such as bones and teeth. HAP is a calcium phosphate-based bio-ceramic, which has been used for several years in medicine and dentistry because of its excellent biocompatibility with human tissues. The success of its application in these fields depends upon factors such as the composition, crystallinity, size and morphology of HAP particles. This paper describes the work performed regarding the synthesis of this compound by a wet method comprising the direct precipitation of orthophosphoric acid solution to a calcium hydroxide solution, the process being described by the following reaction: 10 Ca(OH)2 + 6 H3(PO4) <=> Ca10(PO4)6(OH)2 + 18 H2O. Synthesis was performed in a laboratory reactor, 700mL in capacity, which was instrumented and controlled using a computer interface, so that the influence on process variables, such as reaction temperature, pH, medium inertization by N2, velocity of stirring and the flow rate input of H3(PO4), could be assessed. The influence of these parameters was, therefore, evaluated in terms of the required composition and morphology of HAP formed particles. The particles were analysed by FTIR, XRD, SEM and EPMA for the determination of the Ca/P ratio. From the obtained results, it can be concluded that HAP particles, having suitable properties for use in medicine, could effectively be prepared by this technique, provided that a good control of the involved process variables is maintained.

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Experimental Determination of Kinetic Parameters for the Removal of Ethylacetate and Xylene in a Biofilter

International Journal of Chemical Reactor Engineering ◽

10.1515/1542-6580.3015 ◽

2012 ◽

Vol 10 (1) ◽

Author(s):

Saravanan Viswanathan ◽

Manivasagan Rajasimman ◽

Rajamohan Natarajan

Keyword(s):

Ethyl Acetate ◽

Gas Flow ◽

Treatment Plant ◽

Inlet Concentration ◽

Process Variables ◽

Flow Rates ◽

Maximum Elimination Capacity ◽

Operating Regimes ◽

Industry Wastewater

Abstract The biofilter packed with pressmud and inoculated with activated sludge obtained from pharmaceutical industry wastewater treatment plant was employed for the removal of ethyl acetate and xylene in this study. The effect of process variables like gas flow rates (0.03, 0.06, 0.09 and 0.12 m3 h-1), inlet concentration of ethyl acetate (1.75, 3.0, 7.0 and 10.5 g.m-3) and xylene (0.2, 0.4, 0.6 and 1.2. g.m-3) on the performance of biofilters was validated. The removal efficiency exceeded 97% for ethyl acetate at inlet concentrations up to 3.0 g.m-3 and 95% for xylene at inlet concentrations up to 0.4 g m-3. The maximum elimination capacity of 165 g m-3 h-1 and 66 g m-3 h-1 for the mixture of ethyl acetate and xylene were obtained. A steady state mathematical model was tested and proved to adequately describe the experimental results at the two operating regimes for both ethyl acetate and xylene.

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