Xem 1-6 trên 6 kết quả Conceptual air
  • Cyclones are a key element of the atmospheric circulation in the midlatitudes (Carlson, 1998). Cyclogenesis, for which a first conceptual model was presented by the Bergen school (Bjerknes, 1910), occurs most frequently at the polar front. The various ascending and descending airstreams typically associated with these cyclones carry a range of different chemical signatures (Cooper et al., 2002). The so-called warm conveyor belt (WCB) – a strongly ascending airstream ahead of a cyclone’s cold front (Browning et al.

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  • Public authorities are major consumers in Europe, spending some 16 % of the EU’s gross domestic product (which is a sum equivalent to half the GDP of Germany). By using their purchasing power to opt for goods and services that also respect the environment, they can make an important contribution towards sustainable development.

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  • Permanent grass cover crop is a technique used in the vineyards of Villa Bel-Air. As a result, the grass absorbs the water and the nutrients from the top layer of the soil, and forces the vine roots to go deeper and deeper to find nourishment. Throughout the year, de-budding, leaf-thinning and crop thinning are performed by the technical team. All of these manual operations ensure the perfect health and maturity of each bunch. The harvested grapes are then transferred onto a modern sorting table to remove all remaining vegetal matter.

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  • To stress the salience and urgency of the national situation as dictated by contemporary terrorism and to underscore the need for behavioral and social science understandings of that situation are to pronounce the self-evident. Terrorism, already recognized by some as the looming form of international conflict in the late twentieth century, moved dramatically to center stage on September 11, 2001, and promises to occupy national attention for decades.

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  • The Office of Force Transformation (OFT) and the Office of the Assistant Secretary of Defense for Networks and Information Integration (OASD [NII]) have developed a conceptual framework for conducting analyses and enhancing understanding of network-centric operations (NCO) capabilities. RAND is one of the supporting organizations that assiste

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  • Computers are one of the most important tools in any field of science and especially in physics. A student in an undergraduate lab will appreciate the help of a computer in calculating a result from a series of measurements. The more advanced researcher will use them for tasks like simulating an experiment, or solving complex systems of equations. Physics is deeply connected to mathematics and requires a lot of calculational skills. If one is only interested in a conceptual understanding of the field, or an estimate of the outcome of an experiment, simple calculus will probably suffice.

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