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.
The resistance of the element of the RTD isprovided at various temperatures. The element acts as a temperature senor because with the change oftemperature, the material changes resistance in a predictable manner.RTDs are characterized by a linear positive change in resistance with respect to temperature.latinum is the mostwidely specified RTD element type due to its wide temperature range, accuracy, stability, as well as thedegree of standardization among manufacturers. Nickel, copper, and nickel-iron alloys are also used.RTDs are often characterized by their base resistance at 0Â°C.