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Date: 2016-02-01
Type: Text
Identifier: tut:1393
Description: Cold-tolerant bacteria, also known as psychrotrophic bacteria, are notorious contaminants of milk in the refrigerated dairy food chain. These organisms, especially the pseudomonads, may produce heat r ... More
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Date: 2016
Language: en
Type: Text
Identifier: tut:5067
Description: A hitherto unidentified medicinal plant is here identified for the first time as Pteronia camphorata (L.) L., an aromatic shrub of the Asteraceae family endemic to the western and southern coastal reg ... More
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Date: 2015/10/01
Subject: Environment | Safety
Language: en
Identifier: tut:3399
Description: Tough environmental laws and stringent government policies have revolutionised the refrigeration sector, especially concerning the cycle fluid known as the refrigerant. It has been observed that only ... More
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Date: 2015/02/06
Language: en
Type: Text
Identifier: tut:3145
Description: The stability of biodiesel is dependent on storage conditions such as contact with ambient air and metals, exposure to sunlight and high temperature conditions which accelerate oxidation reactions. In ... More
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Date: 2010/08/16
Language: en
Type: Text
Identifier: tut:5045
Description: Advance wastewater-treatment techniques such as adsorption are essential in the removal of non- biodegradable toxic wastes from water. In this study, the use of South African coal fly ash, an industri ... More
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Date: 2010/ 08/09
Subject: Adsorption. | Charcoal.
Language: en
Type: Text
Identifier: tut:4088
Description: Roughing filtration is an important pre-treatment process for wastewater, because it efficiently separates fine solid particles over prolonged periods, without the addition of chemicals. For this stud ... More
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Date: 2009-11-05
Subject: Simulation | Mixing
Type: Text
Identifier: tut:1941
Description: Stirred tanks are typically used in many reactions. The quality of mixing generated by the impellers can be determined using either experimental and simulation methods, or both methods. The experiment ... More
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Date: 2008-05-08
Type: Text
Identifier: tut:1346
Description: Most studies on the antihypertensive effects of bioflavonoids have reported short-term effects (within 7 weeks) at high concentrations (40–100 mg kg–1 day–1). The present study by contrast has investi ... More
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Date: 2004/05/01
Subject: Automobile | Wheel
Language: en
Type: Text
Identifier: tut:3400
Description: In a recent article, we considered factors influencing the build-up of corruga-tions on dirt roads and the reactions of vehicles to them. We suggested that corrugations are (at least in part) a conseq ... More
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Date: 2003/08/07
Language: en
Type: Text
Identifier: tut:3401
Description: A simple linear model for predicting the width of the riparian zone in terms of channel width and bank slope satisfactorily describes the Olifants River system and may be of wider application.
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