Vickers indentation is used to measure the hardness of materials. In this study, numerical simulation of Vickers indentation experiment was performed for Diamond like Carbon (DLC) coated materials. DLC coatings were deposited on stainless steel 304 substrates with Chromium buffer layer using RF Magnetron and T-shape Filtered Cathodic Vacuum Arc Dual system The objective of this research is to u...

Traveling wave Ti:LiNbO, Mach-Zehnder optical modulators with buried electrodes and etched grooves in the SiO, buffer layer are analyzed by the finite element method. The tradeofl between the bandwidth BW and the half-waue voltage V, is discussed. The value of BW/V7 is used to weight the total performance of the modulator. Taking a thick buffer layer and etching deep grooves in the buffer layer...

A two-station tandem manufacturing system with limited buffer sizes and production capacity is considered. The problem is to examine the stability of the system and to control the service rates to meet an exogenous Poisson demand. A sufficient and necessary condition for the system stability is provided. It is shown that the optimal control policy for this finite buffer capacity problem has the...

A finite-buffer queueing model is considered with batch Poisson input and controllable service rate. A batch that upon arrival does not fit in the unoccupied places of the buffer is partially rejected. A decision to change the service mode can be made at service completion epochs only and vacation (switch-over) times are involved to prepare for the new mode. During a switch-over time service is...

It has recently been shown that a combined input output queued (CIOQ) switch with a speedup factor of 2 can exactly emulate an output-queued (OQ) switch [1]-[6]. In particular, the maximal matching algorithm, named Least Cushion First/Most Urgent First (LCF/MUF) algorithm presented in [6], can be executed in parallel to achieve exact emulation. However, the buffer size at every input and output...

We derive estimators of throughput sensitivity to changes in buffer capacity for continuous flow models of a transfer line comprising two machines separated by a buffer of finite capacity, where machines are subject to operation-dependent failures, i.e., a machine cannot fail when it is idle. Both repair times and failure times may be general, i.e., they need not be exponentially distributed. T...

Providing a photonic alternative to the current electronic switching in the backbone, optical packet switching (OPS) and optical burst switching (OBS) require optical buffering. Optical buffering exploits delays in long optical fibers; an optical buffer is implemented by routing packets through a set of fiber delay lines (FDLs). Previous studies pointed out that, in comparison with electronic b...

Remote estimation with an energy harvesting sensor with a limited data and energy buffer is considered. The sensor node observes an unknown Gaussian field and communicates its observations to a remote fusion center using the energy it harvested. The fusion center employs minimum mean-square error (MMSE) estimation to reconstruct the unknown field. The distortion minimization problem under the o...

Due to the continuous advancements of orthogonal frequency division multiplexing (OFDM) and multiple antenna techniques, multiuser input output (MU-MIMO) OFDM is a key enabler both fourth fifth generation networks. In this paper, we consider problem weighted sum-rate maximization under latency constraints in finite buffer multicell MU-MIMO systems. Unlike previous works, optimization variables ...

We propose a methodology for validating microarchitecture specifications. We view microarchitecture features as specific operations on entries of various buffers in the processor. Our validation approach is to determine the functionality of a buffer type, model its operations at the microarchitecture level using abstract finite state machine (FSM) models, and rigorously generate instruction seq...