C4 pathway A pathway of carbon fixation, found most commonly in tropical plants that have high rates of growth and photosynthesis and that are adapted to high temperatures, strong light, low carbon dioxide levels, and low water supply. Its importance lies mainly in its reduction of photorespiration.
PT 100 RTD means Resistance temperature detector(RTD) of platinum with 100 ohms resistance at zero degree centigrade.
Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature by correlating the resistance of the RTD element with temperature.Most RTD elements consist of a length of fine coiled wire wrapped around a ceramic or glass core.t is also possible to get Pt1000 sensors where 1000 is for the resistance in ohm at 0 Â°C. The sensitivity of a standard 100 ohm sensor is a nominal 0.385 ohm/Â°C. RTDs with a sensitivity of 0.375 and 0.392 ohm/Â°C as well as a variety of others are also available.