Wide-dynamic-range promoters engineered for cyanobacteria

Wide-dynamic-range promoters engineered for cyanobacteria

BACKGROUND Cyanobacteria, prokaryotic cells with oxygenic photosynthesis, are excellent bioengineering targets to convert solar energy into solar fuels. Tremendous genetic engineering approaches and tools have been and still are being developed for prokaryotes. However, the progress for cyanobacteria is far behind with a specific lack of non-native inducible promoters. RESULTS We report the d...

Wide Dynamic Range

Wide-dynamic-range sensors

Orly Yadid-Pecht, MEMBER SPIE Ben-Gurion University of the Negev Electrical and Computer Engineering Department P.O. Box 653 Beer-Sheva 84105 Israel E-mail: [email protected] Abstract. The work done to provide image sensors (CCDs and CMOS) with a wide dynamic range is reviewed. The different classes of solutions, which consist of logarithmic sensors, ‘‘clipped’’ sensors, multimode sensors, frequ...

Wide dynamic range imaging

Interest in technologies that can help improve image sensors—in terms of cost, noise and dynamic range—is growing as quickly as the market for them. Dynamic range (DR) quantifies the ability of a sensor to image highlights and shadows. If we define the dynamic range of the sensor as 20 log(S/N), where S is the maximal signal value and N is the sensor noise, the typical image sensors will have a...

Wide Dynamic Range Acquisition for Ultrasonic Signals

This paper describes our progress in the development of a novel technique of dynamic range expansion we call DRE. The resulting algorithms provide 16 effective bits and a spurious-free dynamic range of 96dB for most RF digitizers, even those collecting at 5GS/sec or higher. The recorded signals are linear and require no log amplifiers. Log amplifiers may provide acceptable dynamic range yet the...