Determination of domestic water meter accuracy degradation rates in Uganda

2015 ◽  
Vol 64 (4) ◽  
pp. 486-492 ◽  
Author(s):  
Deanroy Mbabazi ◽  
Noble Banadda ◽  
Nicholas Kiggundu ◽  
Harrison Mutikanga ◽  
Mohammed Babu
Author(s):  
J. A. du Plessis ◽  
J. J. Hoffman
Keyword(s):  

Materials ◽  
2016 ◽  
Vol 9 (8) ◽  
pp. 627 ◽  
Author(s):  
Eshwara Nidadavolu ◽  
Frank Feyerabend ◽  
Thomas Ebel ◽  
Regine Willumeit-Römer ◽  
Michael Dahms

2018 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
Intan Syahbanu ◽  
Annisa Anugraini ◽  
Husna Amalya Melati

Cellulose Acetate is a material with wide range in applications. Cellulose acetate may obtain from natural resources, such as areca fiber. Polymers should have uniform molecular weight for the applications and could be modify by ultrasonic waves. Ultrasonic treatment on polymer entangled with polymer degradation. In this research, degradation kinetics of cellulose acetate in acetone had been studied. Analysis was performed by determination of intrinsic viscosity in polymer solution system.  Intrinsic viscosity was successfully obtained by fitting data using Huggins equation, indicate molecular interaction in polymer solution should not be neglected.  Increasing in sonication time reducing the intrinsic viscosities as well as molecular size in solutions.  Degradation rate constant and reaction order were obtained 5,975x10-3(g.mL-1)0,1.min-1 and 1,0616, respectively.  Kinetics model was successful to determine the degradation rates of cellulose acetate on acetone by correlation coefficient (R2) at 0,966.


2018 ◽  
Vol 59 ◽  
pp. 00004
Author(s):  
Iwona Klosok-Bazan ◽  
Mateusz Filipowski ◽  
Michal Stojak

The determination of raw water hardness subsequently treated and used for domestic water supplies is a useful parameter to characterize the present total dissolved solids as well as for calculation dosages for lime-soda softening application. Because water hardness concentrations have not been proven to be health related, the final achieved level is mainly an economic function. To identify existing trends, the changes in water hardness in Grotowice intake for the years 1999-2017 have been analysed. The obtained results indicate clearly that the water hardness in three wells shows a slight downward trend, but on the other hand, one trend is rising in another direction.


1987 ◽  
Vol 67 (1) ◽  
pp. 55-64 ◽  
Author(s):  
S. MAHADEVAN ◽  
F. D. SAUER ◽  
J. D. ERFLE

Mixed rumen microorganisms present in bovine rumen fluid were extracted with butanol-acetone to provide a dry powder which retained 75–80% of the proteolytic activity of strained rumen fluid (SRF). Sixty percent of the proteolytic activity of the powder was extracted with water and concentrated on an Amicon XM-300 filter to give a protease preparation which had about 30% of the activity present in the SRF. The protease preparation was used for the determination of the rates of feed protein degradation in vitro by incubating at pH 6.8 in 0.1 M potassium phosphate buffer and measuring the rate of amino acid (and ammonia) production by the ninhydrin method. The relative degradation rates of the true proteins from feedstuffs tested were: soybean meal > fish meal > linseed meal and blood meal > canola meal > corn gluten meal. Substituting Streptomyces griseus protease for the rumen protease gave results which were very different from those obtained with the rumen enzyme. The advantages of using the rumen protease over other in vitro methods and the practical applicability of the procedure are discussed. Key words: Rumen, protease, preparation, in vitro, feed protein degradability


2019 ◽  
Vol 40 (1-2) ◽  
pp. 69-99
Author(s):  
Dennis V. Blanco

Abstract The paper analyzes urban water governance paradigms in the Philippines using available literature and describes the various water policies with specific emphasis on the underlying main legal frameworks which relate to urban domestic water governance. It also focuses on various urban domestic water governance actors, institutions and stakeholders involved and engaged in water governance as an added dimension. Employing a synthesis integrative review and policy-capacity analysis, the paper proposes some key policy-capacity solutions in which urban domestic water governance actors and stakeholders can adopt and replicate, such as capacity-building, epistemic governance, and hydrosolidarity, as possible recommendations or ways forward in urban domestic water good governance studies. Finally, the paper recommends the need for potential review and reform of the main legal foundations, functions, and responsibilities of water institutions through the assignment and determination of jurisdictional capacities exclusively to specialized agencies within the urban domestic water governance framework.


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