Porous particle

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  • Volume flow rate of compressed air is provided by a separate rate Pneumatic valve for each engine. This article is structured as follows: first, a mathematical modeling of mechatronic systems origin, which results in a state-space description of nonlinear icon.

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  • Introduction: Most electrochemical reactions take place at the interface of two or more phases. Hence the area of reaction plays a vital role in determining the efficiency of an electrochemical process, just like in any surface reaction. There are several ways to increase the available area for reaction in an electrochemical cell: multiple electrodes are stacked alternatively, bipolar electrodes are used, and, sometimes, the reaction surface is modified by etching or coating with large surface area particles. ...

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  • Determination of periodontal diagnosis and the extent and severity of periodontal tissue damage through standard periodontal assessment has traditionally been based on an array of clinical measurements, including probing depth (PD), clinical attachment level (CAL), bleeding on probing (BOP), plaque index (PI) and radiographic findings.

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  • April Klein finds a negative relation between audit committee independence and earnings management. 10 This finding is consistent with the idea that a lack of independence impairs the ability of boards and audit committees to monitor management. On the other hand, audit committees of corporate boards are typically not very active. They usually meet just a few (two or three) times a year.

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  • The amount of energy that people used in the past two decades is equivalent to the total amount of energy in the past. This huge increase of energy use has been made possible by extending depletion of fossil reserves and is clearly unsustainable. Does it mean that once the reserves are exhausted the amount of energy available to humans would be similar before the era of fossil fuels? Not necessarily. Currently, the total energy used by mankind No. 1/5500 fraction of the total incident solar energy on earth....

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  • Adsorption occurs whenever a solid surface is exposed to a gas or liquid: it is defined as the enrichment of material or increase in the density of the fluid in the vicinity of an interface. Under certain conditions, there is an appreciable enhancement in the concentration of a particular component and the overall effect is then dependent on the extent of the interfacial area. For this reason, all industrial adsorbents have large specific surface areas (generally well in excess of 100mZg-I) and are therefore highly porous or composed of very fine particles...

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  • This is due to the fact that in green leaves, the chlorophylls and carotenoids have a broad absorption band in the 400-500 nm spectral region and blue light does not penetrate very deeply into the leaf tissue, and as a result the fluorescence associated to blue light excitation is mainly generated in the green mesophyll cells close to the leaf`s surface, therefore little absorption occurs.

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  • A questionnaire was applied including variables social, demographic, occupational, clinical, toxicological and tomatoes consumption habits. The pilot study was carried out on 10% of the total of the sample, although they did not make part of the research. Following the criteria of inclusion, all laborers engaged in tomato planting entered into the study, provided that they were permanent residents in the community, who had used OF, C and OC pesticides at least during the six months previous to the study, and also who volunteered to participate in the study....

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  • Cigarette smokers were 2.7 times more likely to have respiratory diseases than those of non-smokers. Similarly consumption of alcohol and use of non-smoked tobacco were found to be risk factors of hypertension. BMI more than 25 was risk factor for hypertension and diabetes. On the other hand risk of respiratory diseases and cataract increased below a BMI of 18.5. Risk for musculoskeletal problems was found to be higher in both extremes of physical status. The higher risk of diseases to the both extremes of BMI suggests a U- shaped relationship of diseases with BMI. BMI less 18.

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  • Chromatography is the separation method for biological molecules from the analytical to the preparative scale. Few of the recent advances in life science, whether in "proteomics" or in the industrial production of recombinant therapeutics, would have been possible without the help of chromatographic separations. Concomitantly, chromatography nowadays stands for much more than a batch column packed with porous particles

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  • Pulp and paper is a mature industry. Industrialised paper manufacturing in Europe started in the early 19th century (Berkhout, 2005). It is a capital and resource-intensive industry that contributes to many environmental problems, including global warming, human tox- icity, eco-toxicity, photochemical oxidation, acidification, nutrification, and solid wastes (Blazejczak and Edler, 2000). Paper is made of natural fibres, either from wood or from recycled materials. Figure 1 below presents a schematic representation of the production system.

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  • Humidity is one of the main causes of decay in buildings, particularly rising damp, caused by the migration of moisture from the ground through the materials of the walls and floors via capillary action. This water comes from groundwater and surface water. The height that moisture will reach through capillary action depends upon factors such as the quantity of water in contact with the particular part of the building, surface evaporation conditions, wall thickness, building orientation and the presence of salts....

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  • Our empirical analysis uses two different data sources: the RobertWood Johnson Foundation’s 1997 Employer Health Insurance Survey (EHIS) and MEDSTAT MarketScan commercially insured health claims and eligibility information for 1998–1999. We first use the EHIS data to examine turnover patterns and their relationship to firm and employee characteristics. The EHIS data reveal that small firms are very heterogeneous; the heterogeneity concerns workers’ turnover rates, besides workers’ age distribution and other health-related demographic variables.

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  • In many developed nations, significant progress has been made in reducing direct discharges of pollutants into water bodies, primarily through increased treatment of industrial wastewater before it is discharged. An OECD report found that in member countries in the past several decades, “industrial discharges of heavy metals and persistent chemicals have been reduced by 70-to-90 percent or more in most cases” (OECD 2006).

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  • There is growing recognition of the large health and productivity costs imposed by poor indoor environmental quality (IEQ) in commercial buildings—estimated variously at up to hundreds of billions of dollars per year. This is not surprising as people spend 90% of their time indoors, and the concentration of pollutants indoors is typically higher than outdoors, sometimes by as much as 10 or even 100 times. 6 The relationship between worker comfort/pro- ductivity and building design/operation is com- plicated.

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  • Depending on the purpose of the classification, various factors and criteria are considered (e.g. example the ecosystem functions, the end-use of the product, type of users, economic value, property regimes, management characteristics, etc.). However, none of the classification schemes are universal, and all of them have advantages or disadvantages, depending on the context of their application. Bearing in mind the FORVALUE objectives and its main accent on the non-market forest goods and services, four classification approaches, were considered and are describe in more detail.

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  • Agriculture faces the enormous challenge o producing globally almost 50% more food b 2030 and doubling production by 2050. Thi will likely need to be achieved with less wat mainly because of growing pressures from urbanisation, industrialisation and climate change. In this context, it will be important in the future for farmers to receive the right signals to increase water use efficiency and improve agricultural water management, wh preserving aquatic ecosystems.

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  • Furniture layout design falls under the umbrella of space planning, a sub-field of interior design that deals with the allocation of spatial resources [Kilmer and Kilmer 1992; Kubba 2003; Pile 2007; Karlen 2009]. To identify guidelines for furniture layout we have consulted manuals on furniture layout [Talbott 1999;Ward 1999; Sharp 2008] and have interviewed four professional designers who specialize in arranging furniture. An effective furniture layout must address both functional and vi- sual criteria.

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  • Therefore, the integration of the sensors in the furniture is one of the ways to implement an invisible ubiquitous computing environment. The second advantage is that for Ambient Assisted Living solutions, elderly people prefer not to be aware of the existence of the sensors, since this presence is understood as a reminder that they need this support, and it is highly important not to make these deployments highly impacting in people, in order to achieve a higher acceptance.

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  • The next step is to deploy Outpost Network Security Client to the client computers in the Active Directory domain (Windows 2000 or later). This can be done via Group Policy using the Software installation policy. As the policy is applied to computers that are subject to the Group Policy Object (GPO) only, the GPO must be linked to the computers you want to protect, otherwise the policy will not be applied and Outpost Network Security Client will not be installed. You can then link the policy to any other computer and it will be applied during its next startup or...

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