Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Boundaries national

Cowardin, L. M., V. Carter, F. C. Golet, and E. T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. Eish and Wildlife Service, U.S. Department of Interior, Washington, DC. Lewis, W. M. 1995. Wetlands—Characteristics and Boundaries. National Research Council, National Academy Press, Washington, DC. 306 pp. [Pg.65]

Lewis, W. M. 1995. Wetlands—Characteristics and Boundaries. National Research Council, National Academy Press, Washington, DC. 306 pp. [Pg.738]

Water loss in operating an HDR faciUty may result from either increased storage within the body of the reservoir or diffusion into the rock body beyond the periphery of the reservoir (38). When a reservoir is created, the joints which are opened immediately fill with water. Micropores or microcracks may fill much more slowly, however. Figure 11 shows water consumption during an extended pressurization experiment at the HDR faciUty operated by the Los Alamos National Laboratory at Fenton Hill, New Mexico. As the microcracks within the reservoir become saturated, the water consumption at a set pressure declines. It does not go to zero because diffusion at the reservoir boundary can never be completely elirninated. Of course, if a reservoir joint should intersect a natural open fault, water losses may be high under any conditions. [Pg.271]

When assessing potential tollers for a project where an international presence is prescribed or simply expanding your selection of available tollers, the same basic approach presented here can be used. However, some elements may need to be implemented differently, expanded, or combined to accurately depict a toller s capabilities when crossing national and cultural boundaries. A client should still seek the same ethics regarding safety, environmental responsibility, quality and contractual obligations as described previously. [Pg.38]

J.M. McGlaun, Improvements in CSQII A Transmitting Boundary Condition, SAND82-1248, Sandia National Laboratories, Albuquerque, NM, 87185, 1982. [Pg.351]

Let s take the example of benzene, which at 12,000 ppm, is 100% LEL. The National Fire Protection Association (NFPA) states that equipment can operate, without LEL monitors or controls, if the LEL is less than 25% LEL. For benzene then, 25% LEL is equal to 3,000 ppm. This upper boundary becomes a dictating factor in the selection and design of the oxidation equipment. If the concentration is higher than 25% LEL, the NFPA requirements state that an LEL monitor is required. Using an LEL monitor, NFPA guidelines allow operation up to 50% LEL (a 2 1 safety factor). Thus, 100% LEL is explosive if the stream is at 25%, a factor safety of four exists. [Pg.478]

Expansion into new markets and/or the development of new types of business relationships (e.g. customer or supplier) across national boundaries. [Pg.51]

Human resource management/development across national boundaries and across cultures. [Pg.80]

The boundary conditions were used to obtain special forms of these equations at the boundary nodes. The complete pelletizer model contained a total of 207 differential and algebraic equations which were solved simultaneously. The differential/algebraic program, DASSL, developed at Sandia National Laboratories 2., .) was used. The solution procedure is outlined in Figure 5. [Pg.139]

The UK Government has, for more than six years, funded the Valid Analytical Measurement (VAM) Programme, which is aimed at improving the quality and comparability of analytical measurements. The work undertaken within VAM is key to the underpinning of a modern physico-chemical and biochemical National Measurement System, By disseminating the activities of VAM across international boundaries and linking with other national measurement system VAM also aims to ensure the comparability of data worldwide. Thus VAM provides an infrastructure under which reliable measurements can be made for trade, regulation and health and safety provision. [Pg.269]

As Director of the Division of Chemistry at the National Science Foundation, Hancock pioneered many new initiatives, especially those that encouraged interdisciplinary and international collaborations. He had an expansive view of chemistry as a science and urged chemists to pursue imaginative research on the discipline s traditional boundaries that would expand chemistry s frontiers. In materials chemistry, he saw a vital and growing area to which chemists could make important contributions. Under his leadership, the Division s support for research in materials chemistry grew to over 20 million in 1993. [Pg.10]

Figure 6.9 Laser desorption mass spectra of extracts of the Murchison and Allende carbonaceous chondrites and an extraction from the K/T boundary. (Adapted from Becker L, Poreda R. J. and Bunch T. E., 2000 by permission of the Proceedings of the National Academy of Sciences 97 2979)... Figure 6.9 Laser desorption mass spectra of extracts of the Murchison and Allende carbonaceous chondrites and an extraction from the K/T boundary. (Adapted from Becker L, Poreda R. J. and Bunch T. E., 2000 by permission of the Proceedings of the National Academy of Sciences 97 2979)...
A significant amount of lead emitted in a country is transported beyond the national borders contributing to the trans-boundary transport. In 2002 as much as 4.8 kt (around 60% of total anthropogenic emission) of atmospheric lead, emitted in Europe were involved in transport across state borders. Absolute magnitudes of lead transported outside countries vary substantially from country to country. It was calculated as difference between national emission and deposition to the country. This magnitude depends on national emission, size of the territory, climatic conditions and spatial distribution of emission sources within the country. [Pg.368]

Each country is not only a receptor but also a source of the trans-boundary transport. As much as 153 t (60% of anthropogenic emission in Europe) of cadmium, emitted in Europe, leaves the territory of the counties and is involved in the long-range transport. The highest absolute value—30 t/yr—of cadmium transported across national borders was obtained for Poland. The significant exporters of cadmium are Spain, the Russian Federation, Romania and Italy. Nearly 40 t of cadmium is transported outside the European Union. Besides, only nine countries control more than 75% of cadmium trans-boundary transport. [Pg.369]

Figure 10 presents calculated values of trans-boundary depositions of B[a]P from Eastern European countries, that is, depositions outside a country due to national emission sources. For some countries these depositions can reach 2-5.8 tons per year. [Pg.391]

The FDA has the legal authority to regulate clinical investigations in the United States when the investigational products move across state or national boundaries. Under the FDA regulations, review and approval by an IRB is required for any experiment that involves a test article and one or more human subjects, either patients or healthy persons, and that is subject to the requirements for prior submission to the FDA (21 CFR 50.3). Such review is also required for any experiment the results of which are intended to be submitted later to, or held for inspection by the FDA. [Pg.786]

Hardly any French scientists studied abroad. Kirrmann was unusual in his decision to spend a year in Munich in 1930, but he had, after all, been born in German Alsace. John C. Smith notes in his history of Oxford s Dyson Perrins Laboratory, directed by Robert Robinson in the 1920s and 1930s, that there was a great mixture there of ages and nationalities among the twenty or so research students each year but never, until 1947, a French person. 91 This insularity contributed to the closure of the boundaries of the research school associated with Lespieau s laboratory at the Ecole Normale Superieure and to its exclusion from the wider disciplinary history of physical organic chemistry and theoretical chemistry. [Pg.179]

A reciprocal proportionality exists between the square root of the characteristic flow rate, t/A, and the thickness of the effective hydrodynamic boundary layer, <5Hl- Moreover, f)HL depends on the diffusion coefficient D, characteristic length L, and kinematic viscosity v of the fluid. Based on Levich s convective diffusion theory the combination model ( Kombi-nations-Modell ) was derived to describe the dissolution of particles and solid formulations exposed to agitated systems [(10), Chapter 5.2]. In contrast to the rotating disc method, the combination model is intended to serve as an approximation describing the dissolution in hydrodynamic systems where the solid solvendum is not necessarily fixed but is likely to move within the dissolution medium. Introducing the term... [Pg.140]


See other pages where Boundaries national is mentioned: [Pg.112]    [Pg.266]    [Pg.2164]    [Pg.8]    [Pg.363]    [Pg.960]    [Pg.964]    [Pg.1042]    [Pg.5]    [Pg.2]    [Pg.81]    [Pg.627]    [Pg.130]    [Pg.9]    [Pg.173]    [Pg.471]    [Pg.268]    [Pg.60]    [Pg.26]    [Pg.32]    [Pg.361]    [Pg.370]    [Pg.385]    [Pg.449]    [Pg.168]    [Pg.177]    [Pg.101]    [Pg.607]    [Pg.24]    [Pg.177]    [Pg.299]    [Pg.14]   
See also in sourсe #XX -- [ Pg.18 , Pg.215 ]




SEARCH



© 2024 chempedia.info