A burst-mode transmitter achieves 6 ns turn-on time by utilizing a fast frequency settling ring oscillator in digital multiplying delay-locked loop and a rapid on-off biasing scheme for current mode output driver. The resistor tuning-based ring oscillator avoids the use of bias voltages and thereby eliminates the related settling time overhead. The calibrated rapid on-off biasing circuit utiliz...

The oil sands mining and extraction processes in Canada produce large volumes of tailings that are a mixture of mainly water, clay, sand, chemicals and bitumen. This residue is deposited into tailings ponds where sand settles faster than fine clays which require many years to fully consolidate. Therefore, land reclamation and water recirculation become significant environmental impacts. The tai...

The results of batch settling tests (BST) are used to investigate settling behavior of solids suspension, which contribute to sizing thickeners. Conventional methods in analyzing BST on the basis of visual and graphical procedures lead to sub-optimally sized and selected thickeners. A computational approach based on quantitative analysis of BST can be beneficial. About 300 settling experiments ...

We study the structure and properties of hot MHD accretion onto a Kerr black hole. In such a system, the hole is magnetically coupled to the inflowing gas and exerts a torque onto the accretion flow. A hot settling flow can form around the hole and transport the angular momentum outward, to the outer edge of the flow. Unlike other hot flows, such as advectionand convection-dominated flows and i...

The term high-rate sedimentation used here refers to the use of shallow gravitational settlers with detention periods of not more than 15 min to achieve comparable or better settling efficiencies normally obtained in conventional rectangular settling tanks having detention periods of usually more than 2 hr. The settlers can be rectangular, circular, or any other convenient shape. They can be ei...

It is well known that timing jitter can degrade the bit error rate (BER) of receivers that recover clock information from the input data. However, timing jitter can also result in an indefinite increase in the settling time of clock recovery circuits at the receivers, particularly in low swing mesochronous systems. Mesochronous clock retiming circuits are required in repeaterless low swing on-c...

the activated sludge process is the most used biological wastewater treatment method in the world. sludge bulking is one of the most common problems relateing to activated sludge wastewater treatment, and this fact causes poor settling in secondary sedimentation tank. sludge volume index(svi) and the zone settling velocity(zsv) are parameters to quantify the settleability of activated sludge . ...

This paper develops an inventory model for non deteriorating items with time dependent demand rate of production with constant inflation rate. In this model shortages are not allowed, the effect of inflation rate and delay in payments are discussed. In the study mathematical models are also derived under two different cases, i.e. Case-I the credit period is less than or equal to the cycle time ...