In this study, hydrophobic talc nanoparticles were applied as a novel class of solid flotation collector. The aim of this work was to understand the effect of talc nanoparticles size and dosage on the quartz flotation recovery. X-ray analysis, dynamic light scattering, and scanning electron microscopy were conducted. Flotation tests were performed in modified a Hallimond flotation cell. The Zet...

Advent of multimedia applications, which require data links with ever-increasing capacity, is necessitating highspeed optical communication systems and driving research and development for high-speed ICs operating at 40 Gb/s. These optical fiber communication systems require high performance and low power chipsets, which incorporate useful service functions. Figure 1 illustrates a typical recei...

A 4Gb/s power and area efficient clock/data recovery (CDR) circuit is proposed. Fully-differential design is employed to reject any common mode noises and to significantly reduce power/ground bounce. An analog dual delay-locked loop (DLL) architecture continuously aligns the clock sampling edge to the center of incoming data eye-opening. A self-correcting function prevents the phase capture ran...

This paper presents the design of a clock and data recovery circuit having a high data rate of 9.95328 Gb/s by using delay locked loop with Switched Capacitor (SC) filter to improve the jitter transfer function and jitter tolerance as it has high Q and low center frequency. From the results it is seen that the besides the conventional DLL circuit , the circuit using SC filter of fc= 311.04 MHz ...

Fractional flow analysis confirms the advantages of surfactant alternative gas injection (SAG) in enhanced oil recovery, but an adsorption phenomenon that has been affected by several factors, weakens the effectiveness of SAG injection. In this study, the effects of sacrificial agent, gas phase, and surfactant concentration on adsorption density on silica mineral were investigated by static and...

A new dynamic subdivision surface model is pro posed for shape recovery from D data sets The model inherits the attractive properties of the Catmull Clark subdivision scheme and is set in a physics based mod eling paradigm Unlike other existing methods our model does not require a parameterized input mesh to recover shapes of arbitrary topology allows direct ma nipulation of the limit surface v...

This paper extends the traditional binocular stereo problem into the spacetime domain, in which a pair of video streams is matched simultaneously instead of matching pairs of images frame by frame. Almost any existing stereo algorithm may be extended in this manner simply by replacing the image matching term with a spacetime term. By utilizing both spatial and temporal appearance variation, thi...

The development of amine scrubbing processes for coal and natural gas-fired power plants is essential to reduce CO2 emissions. The design of tailor-made dynamic models to predict CO2 capture in amine scrubbing processes is fundamental for optimal control operations. This paper presents the use of SIMPCA, a subspace system identification technique used to develop a dynamic empirical model for an...

Our interest is in understanding three aspects of complex, online knowledge work processes. First is how to provide model-driven process enactment support and event data capture for globally dispersed enterprise processes, resources and users. Second is how to discover process structures and resource usage patterns from emergent and dynamic process enactments. Third is how to recover or repair ...

Abstract: The motion recovery for a class of movements in the space by using stereo vision is considered by observing at least three points in this paper. The considered motion equation can cover a wide class of practical movements in the space. The observability of this class of movement is clarified. The estimations of the motion parameters which are all time-varying are developed in the prop...