Xem 1-20 trên 115 kết quả Engineered membranes
  • There is increasing political and environmental pressure on industry to clean up the water which it uses in many processes, and to re-use this water where possible. This cleaning is done using specially-developed industrial membranes and this book covers the types and design of membranes, how they work and in which industries they are used. Special attention is paid to the textile, food/ beverage, pharmaceutical, oil and pulp and paper industries where such membranes are in regular use.

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  • The study of catalytic membranes and membrane reactor processes is a multidisciplinary activity, which in recent years has attracted the attention of scientists and engineers in a number of disciplines, including materials science, chemistry and biology, and chemical and biochemical engineering.

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  • Calculation of disposal costs may involve a set of tasks. It may be necessary to calculate material flows (an engineering exercise) from the plant's production process so that wastes can be desegregated and tracked. These material flows will then have to be translated into disposal costs. This calculation can be complex. Consider the issues that arise if the waste is destined for landfill disposal. First, there will be marginal disposal costs associated with transport of the waste. Second, the waste's contribution to landfill costs must be calculated.

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  • Improvements in the fields of membrane-protein molecular biology and biochemistry, technical advances in structural data collection and processing, and the availability of numerous sequenced genomes have paved the way for membrane-protein structural genomics efforts. There has been significant recent progress, but various issues essential for

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  • This text is written to all chemical engineering students who are participating in courses about membrane processes and membrane technology. You are supposed to have the basic skills in mathematics and chemistry in general. Thus, this text is for students who have completed the basic engineering introduction courses. This text gives an introduction to principles behind pressure driven membrane processes. Relevant theory and models will be presented together with terms widely used in the world of membrane technology. ...

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  • Summarizing the offers made, we are proud to say that not only is the university one of the biggest training schools for business administration and engineering, but it also is one of the most re- spected, as shown by recent rankings. The university ranking system developed by the Centre for Higher Education Development (CHE, Centrum für Hochschulentwicklung) places our department in the top group with regard to reputation of professors, laboratory equipment and study conditions.

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  • The biologic phenotype underlying chronic periodontitis, including the biofilm and the host response, tend to vary among individuals despite a similar clinical diagnostic category (Offenbacher et al. 2007). Consequently, disease screening should ideally be based on clinical determinations and the biologic phenotype (Page and Kornman 1997). Other associated factors include environmental exposures, as well as differences in genetic and possibly epigenetic composition (Page and Kornman 1997).

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  • In 2010, the Nursing and Midwifery Board of Australia raised the English language proficiency requirement for registration as a nurse to an Overall score of 7.0 in the Academic module of the IELTS Test, with 7.0 in each of the components that comprise the Test. Other professional registration boards have also instituted an IELTS requirement (discussed in Merrifield, 2008). According to information on the IELTS website, as of November 2010, 48 professional associations in Australia identified an IELTS requirement (International English Language Testing System, 2010a).

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  • Defining the various tasks required of GDHit was essential before any visual brainstorming was approached. These tasks, once defined, helped clarify perceptions of layout and functionality. The main function of the timeline is to search content chronologically (span a set number of years), filter content (through the classification of various categories), read content (the most important single function of the timeline) and filter contextually rather than linearly (by filtering content through the Tags).

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  • In recent years, earthquake damage caused by the massive earthquake that happened in many countries. For example, more than 250,000 people have been killed by the earthquake Haiti January 2010. In addition, more than 15,000 people have been killed by the Japanese Tohoku The earthquake and Japan Tohoku coast was devastated by a large tidal wave March 2011.

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  • Technological advances in cases are included in the equipment around us every day, our life is safer, hand in hand with economic advantage and ecology. This book collects original research related to composite materials, their properties and tested from different perspectives. Programs are divided into five groups according to their main purpose: the material properties, natural resources, manufacturing, Experimental and model.

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  • Several new aspects have been highlighted: for example, a novel role for lipids as receptors which drive protein sorting, the diversity of the sorting events that occur at the level of the Golgi apparatus, and the cross talk between exocytosis and autophagy. Moreover, an interesting example of how the knowledge of these pathways is exploited to generate novel secretory routes to direct the synthesis of bio-molecules in “cell factories” is discussed.

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  • In the last decade, we have witnessed a rapid growth in research and development of nanotechnology, especially nanostructured materials. Nanoporous materials as an important class of nanostructured materials possess high specific surface area, large pore volume, uniform pore size, and rich surface chemistry. These materials present great promises and opportunities for a new generation of functional materials with improved and tailorable properties for applications in adsorption, membranes, sensors, energy storage, catalysis and photocatalysis, and biotechnology, etc.

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  • Students presented an original copy of their IELTS Test (Academic module) results obtained after 1 July 2007 (when half band scores were introduced for Speaking and Writing) and before 26 May 2009. These results are referred to in this report as Test 1 scores. The students undertook a second IELTS Test for the study on 10 July 2010. For most of the students, this was immediately preceding the final semester of their undergraduate program. For a few, it was at the end of their final semester. The results of this test are referred to in this report as Test...

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  • The life cycle of the retrovirus consist of several steps. It begins with the binding of the viral envelope to cellular receptors, which enables fusion of the viral envelope with the cellular membrane. Consequently, the viral particle is uncoated, liberating the viral core into the cell cytoplasm. The viral DNA is reverse transcribed to DNA. Then, the viral DNA is transported to the nucleus where it is integrated into the host cell’s genome. From there, viral DNA is transcribed to RNA, some of which is translated to proteins.

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  • Thus, it remedies soil degradation, desertification, and deforestation. Jatropha is native of tropical America, but now flourish in many parts of the tropics and sub-tropics in Africa/Asia. Various parts of the plant are of medicinal(both human and veterinary purposes) value for instance, and are under intensive scientific investigation. The oil is a strong purgative, widely employed as an antiseptic for cough, skin diseases, and a pain reliever from rheumatism. Jatropha latex can heal wounds and also has antimicrobial properties (Openshaw, 2000).

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  • The data we use to address these questions are taken from a large-scale matched worker-firm data set for Germany, the IAB Linked Employer-Employee data set (LIAB). This data set links the IAB-Establishment Panel with individual data for the entire population of workers from the Employment Statistics Register. Due to its administrative nature, one of the major advantages of this data set is that it offers very reliable information on individual daily wages inclusive of supplemental pay as long as such pay is subject to social security contributions.

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  • Teaching language as an activity is important especially where learners lack the expected writing proficiency. In Andhra Pradesh, it has been observed that many ESL learners at class IX level, especially those from regional medium schools do not have the required writing proficiency. This could be because of several factors such as inadequate writing practice in the classroom, poor vocabulary, examination oriented writing, teacher- dictated writing, lack of exposure to English, lack of a homogenous English speaking community, limited reading habits and so on.

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  • In the next block processing features to detect a particular event in the case external devices, or to identify, study, and signal the brain to recognize patterns, will be used as input for the following blocks that translate to control command of the external device. Last but not least important, is the block set effects supervision Operative mode of BCI devices under the supervision of users, this is if the device is active in on-line / Off linemode, or if it ismodifying its internal parameters in the learning phase in order to regulate the activity of users....

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  • o maintain the ability to chew with one's own teeth over as much of one's life as possible, all people should receive regular check-ups by a dentist once or twice yearly, even if they have no symptoms such as pain or swelling. Finally, a book describing in detail the oral care system presented in this pamphlet was published by Ishiyaku Shuppan in the summer of 2004. In addition, a videotape showing in detail the oral care system was published by Chuohoki Shuppan in 2003. Please refer to it for more detailed information. ...

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