Radiation dose measurements of radiopharmaceuticals and calibrators at different voltages fluctuations were evaluated. Low high doses technetium, iodine fluorine pharmaceuticals measured in voltages. The results showed that only low could make small insignificant differences.

We present a detailed analysis of the fundamental noise sources in superconducting transition-edge sensors (TESs), ac voltage biased at MHz frequencies and treated as weak links. have studied resistive transition function bath temperature several detectors with different normal resistances geometries. show that excess noise, typically observed TES electrical bandwidth, can be explained by equil...

unlike traditional power grids, smart grids have the advantage of bidirectional power flow and having distributed generations. distributed generation systems are usually supplied by renewable sources which can cause unpredicted voltage fluctuations as a result of being intermittent. while traditional compensating devices deal with the problem of voltage fluctuation and reduced power quality wit...

In this paper we report a new method for determining the critical threshold of the Fréedericksz transition driven by an electric field. It is based on the measurement of the amplitude of the molecule fluctuations as a function of the voltage difference applied to a planar nematic cell. The precise measurement of the director fluctuations of the liquid crystal is made possible by the use of a ve...

In order to achieve the purpose of energy economization by reducing the operating voltage of an asynchronous motor when it's running at no load or light load, a new kind of intelligent energy-saving motor controller is designed in this paper. This controller judges different load conditions by collecting the operating current, and it has the function of tracking the load automatically in accord...

Neocortical pyramidal neurons in vivo are subject to an intense synaptic background activity but little is known of how this activity affects cellular responsiveness and what function it may serve. These issues were examined in morphologically reconstructed neocortical pyramidal neurons in which synaptic background activity was simulated based on recent measurements in cat parietal cortex. We s...

The imbalanced utilization and the diversity of circuitry cause on-chip temperature gradients. Different sections of high-performance integrated circuits typically operate at different temperatures. Furthermore, environmental temperature fluctuations can cause significant variations in the die temperature. Temperature fluctuations alter the speed characteristics of CMOS circuits. Several techni...

The theory of charge partition noise of quasiparticles in a superconducting tunnel junction is developed. The charge fluctuations are shown to have a significant contribution from partition noise that arises from the quantum superposition of the electron and hole character of the quasiparticles. These fluctuations are dominant at small bias voltage. The charge fluctuations are compared to the u...