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Topic is one of the core types in Freebase. Topics contain a set of default properties that are generally useful when describing a topic: display name, alias, article, image and webpage.
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about 2,000 Topic topics matching:
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| x name | x image | x Also known as | x article | x Subjects |
| C |
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C programming language |
C is a general-purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.
Although C was designed for implementing system software, it is also widely used for...
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| Microsoft Excel |
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Excel |
Microsoft Excel (full name Microsoft Office Excel) is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called...
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| Stefan-Boltzmann constant |
The Stefan–Boltzmann constant (also Stefan's constant), a physical constant denoted by the Greek letter σ, is the constant of proportionality in the Stefan–Boltzmann law: the total energy radiated per unit surface area of a black body in unit time...
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| C++ |
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CPP, C plus plus |
C++ (pronounced "See plus plus") is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. It is regarded as a middle-level language, as it comprises a combination of both high-level and low-level language...
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| Wind speed |
Wind speed is the speed of wind, the movement of air or other gases in an atmosphere. It is a scalar quantity, the magnitude of the vector of motion.
Wind speed has always meant the movement of air in an outside environment, but the speed of air...
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| Commonwealth Scientific and Industrial Research Organisation |
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CSIRO |
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) is the national government body for scientific research in Australia. It was founded in 1926 originally as the Advisory Council of Science and Industry.
Research highlights...
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| Advisory Council of Science and Industry | ||||
| Solar constant |
The solar constant is the amount of incoming solar radiation per unit area, measured on the outer surface of Earth's atmosphere, in a plane perpendicular to the rays. It is measured by satellite to be roughly 1366 watt per square metre. Thus, for...
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| Photosynthetically active radiation |
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Photosynthetically active radiation, often abbreviated PAR, designates the spectral range (wave band) of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis. This spectral region...
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| Leaf Area Index |
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Leaf Area Index or LAI is the ratio of total upper leaf surface of vegetation divided by the surface area of the land on which the vegetation grows. LAI is a dimensionless value, typically ranging from 0 for bare ground to 6 for a dense forest....
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| FORTRAN 77 | ||||
| Century |
Century models litter and soil organic matter, C, N, P, and S dynamics through
an annual cycle over time scales of centuries and millennia.
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| TRIFFID |
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TRIFFID updates plant distribution depending on the CO2 fluxes at the land-atmosphere interface.
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| Soil evaporation rate | ||||
| Precipitation intercepted by canopy | ||||
| Albedo for short-wave radiation | ||||
| Albedo for long-wave radiation | ||||
| CO2 assimilation rate at light saturation for individual leaves | ||||
| Potential CO2 assimilation rate at light saturation for individual leaves | ||||
| Assimilation CH20 requirement for dry matter production | ||||
| Assimilate requirement for dry matter production | ||||
| Assimilate requirement for leaf dry matter production | ||||
| Assimilate requirement for root dry matter production | ||||
| Assimilate requirement for storage organ dry matter production | ||||
| Assimilate requirement for stem dry matter production | ||||
| Atmospheric transmission coefficient | ||||
| Total transpiration rate of canopy | ||||
| Actual vapour pressure | ||||
| Black-body radiation | ||||
| Mass fraction carbon in leaves | ||||
| Mass fraction carbon in roots | ||||
| Mass fraction carbon in storage organs | ||||
| Mass fraction carbon in stems | ||||
| Amount of carbon in crop | ||||
| Sum of integrated carbon fluxes into and out of crop | ||||
| Conversion factor for remobilisation of stem carbohydrates into glucose | ||||
| LPJ |
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The following description is taken from this source.The Lund-Potsdam-Jena Dynamic Global Vegetation Model (LPJ) combines
process-based, large-scale representations of terrestrial vegetation dynamics
and land-atmosphere carbon and water exchanges...
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| CO2 production factor for growth of leaves | ||||
| CO2 production factor for growth of roots | ||||
| CO2 production factor for growth of storage organs | ||||
| CO2 production factor for growth of stems | ||||
| Coefficient for effect of water stress on dry matter partitioning | ||||
| Daily average temperature | ||||
| Declination of the sun | ||||
| Death rate of leaf area | ||||
| Death rate of leaves | ||||
| Day number for crop emergence | ||||
| Drainage rate below the root zone | ||||
| Drying power term in Penman equation | ||||
| Daily extra-terrestrial radiation | ||||
| Number of days since last rain | ||||
| Daily effective temperature | ||||
| Daily total gross CO2 assimilation of the crop | ||||
| Gross CO2 assimilation rate | ||||
| Daily maximum temperature | ||||
| Daily minimum temperature | ||||
| Daily solar radiation | ||||
| Development stage of crop | ||||
| Ear area index | ||||
| Ear area/weight ratio | ||||
| Soil-specific extinction coefficient | ||||
