Results 91 to 100 of about 5,393 (139)

The triple cost of tobacco and sugary drinks: health, economy and the environment. [PDF]

Rev Peru Med Exp Salud Publica
Alcaraz A, Espinola N.
europepmc   +1 more source

Assessing the Environmental and Economic Footprint of Leakages in Water Distribution Networks

The 8th International Electronic Conference on Water Sciences
Athanasios V. Serafeim, Anastasios Perdios, Nikolaos Th. Fourniotis, George Kokosalakis, Andreas Langousis   +4 more
openaire   +1 more source

Research on the active sealing and promoting extraction technology of high-gas mine working face return air corner gas. [PDF]

Sci Rep
Sun B, Gong X, Fan X, Cheng X, Yang P, Xiao L, Cheng C, Ma X.   +7 more
europepmc   +1 more source

Structural and Functional Improvement in Persistent Macular Edema Following Internal Limiting Membrane Peeling Coupled With Integrated Optical Coherence Tomography-Guided Cyst Puncture of Intracystic Hyperreflective Material. [PDF]

J Vitreoretin Dis
Upadhyaya A, Narula R, Takkar B.
europepmc   +1 more source

Systematic evaluation and meta-analysis of transcardiac intracavitary and transesophageal echocardiography-guided left atrial appendage occlusion surgery. [PDF]

Front Cardiovasc Med
Luo B, Niu Y, Zhang L, Cheng Z.
europepmc   +1 more source

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Economic Optimization of Distribution Leakage Control

Water and Environment Journal, 1988
ABSTRACTEvry WATER DISTRIBUTION system has an economic optimum level of leakage. To maintain that optimum level of leakage there is a corresponding optimum level of leakage control activity.Despite much work on this subject, particularly in recent years with publication of DoE Report No. 261, many undertakers remain unclear about their economic optimum
exaly   +2 more sources

Economics, Mothercraft and Leakage II

New Blackfriars, 1933
The social conditions of our times which we have briefly examined in our previous article have seriously impaired the art or craft of motherhood. The principal reason for this has been economic insecurity together with the contributory causes already referred to, the ‘dissipation of life’ and the diminished population of the home.The economic security ...
exaly   +2 more sources

Effect of Clearance Leakage Loss on Economics of Steam Turbine

2009 International Conference on Energy and Environment Technology, 2009
The leakage loss is very important to the economics of steam turbine. But in the practical operation process, the radial clearance often is enlarged in steam turbine flow passage. Aimed at this phenomenon, the influences of clearance leakage on the relative internal efficiency and the power of steam turbine are studied in this paper.
Lihua Cao, Pengfei Hu
exaly   +2 more sources

Analysis of Economic Leakage Level and Infrastructure Leakage Index Indicator by Applying Active Leakage Control

Journal of Pipeline Systems Engineering and Practice, 2021
AbstractActive leakage control (ALC) has an important place in the management and prevention of leaks in water or/and gas distribution systems.
Salih Yilmaz, Mahmut Firat, Abdullah Ateş, Özgür Özdemir   +3 more
openaire   +1 more source

Leakage Targets and Socio‐Economic Efficiency

Water and Environment Journal, 2001
AbstractDuring the last few years, the introduction of mandatory leakage targets for UK water companies has had the positive effect of reducing levels of leakage, while requiring the companies to operate at an economic level of leakage. Unfortunately, the determination of company‐specific economic levels of leakage have been a source of disagreement ...
F. J‐C. Bouchart, H. M. Salleh, J. W. Sawkins, P. W. Jowitt   +3 more
openaire   +1 more source