In this study, we consider the production environment of no-wait reentrant flow shop with the objective of minimizing makespan of the jobs. In a reentrant flow shop, at least one job should visit at least one of the machines more than once. In a no-wait flowshop scheduling problem, when the process of a specific job begins on the first machine, it should constantly be processed without waiting ...

A 256 144-bit TCAM is designed in 0.18m CMOS. The proposed TCAM cell uses 4T static storage for increased density. The proposed match-line (ML) sense scheme reduces power consumption by minimizing switching activity of search-lines and limiting voltage swing of MLs. The scheme achieves a match-time of 3 ns and operates at a minimum supply voltage of 1.2 V.

In this paper, the problem of lot sizing, scheduling and delivery of several items in a two-stage supply chain over a finite planning horizon is studied. Single supplier via a flexible flow line production system (FFL), produces several items and delivers them directly to an assembly facility. Based on basic period (BP) strategy, a new mixed zero-one nonlinear programming model has been develop...

In this paper, we critique the initiative for public private partnership in passenger train operations, started by Ministry of Railways July 2020. First, examine each clusters terms parameters having implications on market and design coherence. The include category service (based running time), kms per week, hours week average speed. Second, present salient features bid conditions as documents ...

Mixed-model assembly line (MMAL) is a type of assembly line where several distinct models of a product are assembled. MMAL is applied in many industrial environments today because of its greater variety in demand. This paper considers the objective of minimizing the work overload (i.e., the line balancing problem) and station-to-station product flows. Generally, transportation time between stat...

In this paper a mixed-model assembly-line sequencing problem with the goal of minimizing work overload is addressed. We consider time windows in work stations of the assembly line (closed stations). Different versions of a product to be assembled in the line (e.g. automotive industry), which require different processing time according to the work required in each work station are considered. In...

Effectiveness of the existing local bus stops as transition points in mass transportation system Dhaka metropolitan city area was investigated through a questionnaire survey among 120 randomly selected passengers at four namely, Azimpur, Jhigatola, Collegegate and Motijheel, between March June, 2004. Bus stop found one major factors for common people that influence standard services. Inappropri...

Individuals base decisions on their surroundings and change their minds based on the action of others and interactions with the environment. Current Cellular Automata techniques for modeling pedestrian movement predetermine the individual’s goals and do not change them throughout the execution of the simulation. To allow the individuals to make decisions as the simulation progresses a technique...

Since unexpected sudden deaths have been reported with the use of diverse non-cardiac drugs, cardio-safety experts focused their attention on security measures to improve survival rates in heart stoppages due to this prescribed drugs (Inchauspe 2010a). Considering that prolongation of the QTc is a reliable marker of a menacing arrhythmia called torsade de pointes (TdP) - that can progress to ve...

To make paper, machines spray wet pulp on a moving screen and extract the water from it by squeezing it between rollers, before drying it using heat and rolling it on reels as finished product. The water extracted in the squeezing process is removed by a continuous roll of fabric called a felt. There are typically three felts on a paper machine. Felts wear out over time, and therefore must be r...