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Articles 1 - 6 of 6
Full-Text Articles in Engineering
Should Tortuosity Still Be Used In Upscaling?, Francisco J. Valdes-Parada, Mark L. Porter, Brian D. Wood
Should Tortuosity Still Be Used In Upscaling?, Francisco J. Valdes-Parada, Mark L. Porter, Brian D. Wood
Francisco J. Valdes-Parada
The concept of tortuosity is an integral part of models that describe trans- port in multiscale systems. Traditionally, tortuosity is de#12;ned as the ratio of an e#11;ective path length to the shortest path length in a representative sample of the porous medium microstructure. While the latter can be unambiguously speci#12;ed, the same is not true for the e#11;ective path length, since it changes from one type of transport to another. Consequently, it is possible to have di#11;erent tortuosity values for di#11;erent transport processes taking place in the same system. In order to avoid running into unclear interpretations, we pro- pose …
Sonochemical Degradation Of Chlorinated Organic Compounds, Phenolic Compounds And Organic Dyes–A Review, Pankaj Chowdhury, T. Viraraghavan
Sonochemical Degradation Of Chlorinated Organic Compounds, Phenolic Compounds And Organic Dyes–A Review, Pankaj Chowdhury, T. Viraraghavan
PC
Sonochemical processes have been widely used in chemistry and chemical engineering field. Recently, these processes have found new applications in the environmental field, because of advantages in terms of operational simplicity, secondary pollutant formation and safety. Several studies have reported on sonochemical degradation of organic compounds that are toxic in nature. The objective of this review was to identify and examine some of the studies on sonochmical degradation of chlorinated organic compounds, phenolic compounds and organic dyes. This review also examines the basic theory of sonochemical reactions and the use of sonochemical reactors for environmental applications.
Assessment Of The Impact Of The European Co2 Emissions Trading Scheme On The Portuguese Chemical Industry, João F. Gomes
Assessment Of The Impact Of The European Co2 Emissions Trading Scheme On The Portuguese Chemical Industry, João F. Gomes
João F Gomes
No abstract provided.
Suchy System Oczyszczania Spalin Ze Spalania Odpadów Niebezpiecznych – Ocena Skuteczności Usuwania Substancji Gazowych I Możliwości Spełniania Standardów Emisyjnych, Robert Oleniacz
Robert Oleniacz
The research object was a medical waste incineration plant with a flue-gas treatment system based on dry sorption agent injection to combustion gases before a high-efficiency particulate collector. A combustion system was consisted with the fluidized bed reactor (starved air gasifier) and the secondary combustion chamber. As the dry absorbent was used a mixture of high reactive hydrated lime and activated carbon. Activated carbon content in the mixture was 5-10 % by mass. The absorbent was injected in the minimal recommended amount (4-5 kg/h). Applied collector was a ceramic filter with total filtration area of 120 m2 and guaranteed outlet …
The Development Of Humans – A Study Including Languages, Cultures, Religions And Genetics, Dr. Erik Dahlquist, Dr. Allan Dahlquist
The Development Of Humans – A Study Including Languages, Cultures, Religions And Genetics, Dr. Erik Dahlquist, Dr. Allan Dahlquist
Dr. Erik Dahlquist
The book covers the development of culture, religion, language and genetics of the human population since prehistory. Four main cultures have spread around the globe: 1) Monosyllabic language people with ancestor cult 2) Austroasiatic people with sun worshipping and megalit graves. Counting with 20 as the base 3) Uralic speaking people with kings from the sky, and strong city states. Moon and mother godess. Don´t differentiate between male and female, he and she. 4) Inflectual language speaking people with sky gods and cattles. Indoeuropeans. Often endings differentiating he and she. Shows how original cultures are refelected in todays society.
Making The Case For Community-Based Laboratories, Earthea Nance
Making The Case For Community-Based Laboratories, Earthea Nance
Earthea Nance, PhD (Stanford University, 2004)
No abstract provided.