On the other hand the later will be affected by lowering speed of the overall system when using voltage scaling technique (Tawfik & Kursun 2009). Another technique called Voltage Island comes to solve the problem of the RT-DVS technique which different blocks can be run at different voltages for saving power in a non-critical island/block (Puri et al. 2005). Puri et al. also show that Voltage Island may require the use of level-shifters (to change the voltage supply level) when two block... ... middle of paper ... ...02).
Nachaiyasit and Stuckey (1997) studied the effect of organic and hydraulic load on an anaerobic baffled reactor and observed significant differences in reactor performance in both cases. While the increase in OLR can trigger microbial growth, low OLR can cause starvation. So, the increase in OLR can be used as a means to increase biogas production rate. However, the response of each trophic group to change in loading condition should be taken into account. For maintenance of reactor stability, proper balance between each trophic group of microbial communities is very important.
Although excess Pb increase crystallization it worsens the morphology. PZT films deposited with excess Pb tend to have a rougher surface. Works Cited Multi‐ion‐beam reactive sputter deposition of ferroelectric Pb(Zr,Ti)O3 thin films S. B. Krupanidhi, H. Hu, and V. Kumar Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
The process of introduction of impurities to intrinsic crystalline structure is known as doping and will be explained below.... ... middle of paper ... ...l voltage could alter the height of the potential barrier. When positive terminal of a battery is connected to n-type and the negative terminal of the battery is connected to the p-type the electrons in the n-type will be attracted to the positive terminal while holes in p-type will be attracted to the negative terminal. Thus the depletion layer will increase preventing a current flow across the p-n junctions. This is called reversed bias. A current flow is only generated when the positive terminal of the battery is connected to the p-type and the negative terminal of the battery is connected to the p-type.
Constant tool feeding was preferred over gravity feed machining to reduce the hole diameter and crack formation at the hole surface. This was due to the force due to hitting of the electrode and workpiece at the hole exit. Similar types of observations were reported by Yang et al. . Experiments were conducted with different process parameters like voltage, duty factor and electrolyte concentration.
Then the PMT generates an electrical pulse relative to the absorbed gamma energy. The phenomenon known as a parallax-error or depth-of-interaction (DOI) error  which reduces the sensitivity and reconstruction quality of PET, most probably happened when the photons enter to the detector with non-perpendicular angle. Phosphor sandwich (phoswich) detectors  are considered as one of the methods used to reduce the parallax-error. The phoswich detector is a stack of two or more different scintillation crystals; i.e. with different decay time constants, optically coupled to a single PMT.
Here, we present the use of energy performance simulation early in the design method saving features. We examined some of the new paradigm in the design of processors and their intrinsic motivation, performance characteristics comments. The most effective way to reduce processor energy consumption method is designed to operate at a high frequency : a reduced voltage (and therefore frequency) . This is the main control mechanism power Transmeta Crusoe chip in for . There is a limit , however, can reduce the number of VDD ( for a given technology ) , which is because the circuit can b... ... middle of paper ... ...eplace the desktop processor as the development of innovative microprocessor technology .
NAME: - Parag Rao COURSE: -EE295 TOPIC: - 5 page report SJSUID: -008932014 LOW POWER FPGA Power consumption is an important issue in modern FPGA’s. Greater performance and complexity has led to higher power dissipation per chip, while the use of deep sub-micron processes has resulted in higher static power in the forms of sub-threshold leakage and gate leakage. Heating solutions for devices with high power dissipation is expensive. If FPGA’s are to be used in portable devices, power consumption needs to be reduced. -powered applications, high power consumption may prohibit the use of FPGA altogether.
the suppress severity of vibration is passive vibration technique which is used in structural dynamics to control vibration. Passive damping method is adding a layer of damping which is highly dissipative material like viscoelastic material and applied to metal objects to increase the damping in the total structure. Adding these materials to a structure or material system improves the vibration response by reducing the resonant peak response, reducing setVibrations of structures are responsible for causing many problems such as unbalanced forces in machines, structural fatigue, external excitations. For better performances of machine components it becomes more essential to reduce or eliminate these unwanted vibrations, so that to lifetime of structures will increase. One of the efficient technique used for the suppress severity of vibration is passive vibration technique which is used in structural dynamics to control vibration.
Technology progresses in the fields such as: electronic industries, high power engine and optical device that produce high heat flux is in a way that conventional methods are not able to remove the heat generated by these devices and need to advance cooling methods. There are two ways to improve the cooling processes. The first way is design of new cooling device with smaller channel dimensions that causes enhanced convective heat transfer coefficient due to increased fluid velocity [1, 2]. The use of microchannel as a cooling device for dissipating heat from silicon integrated circuit was first proposed by Tuckerman and Pease . Two important goals in the electronics cooling are the reduction of maximum temperature of the device, and minimization of temperature gradients on the device surface that can be achieved by the use of microchannel heat sink (MCHS) .