This paper presents the design and implementation of the new Active Memory Manager Unit (AMMU) designed to be embedded into System-on-Chip CPUs. The unit is implemented using VHDL in Field Programmable Gate Array (FPGA) technology. The modified buddy system is used as the hardware algorithm for memory management. The RISC compatible open-source CPU is deployed with the memory management unit to...

Digitization of modern world has led to increasing use of digital equipment. The pioneer equipment in this regard is Digital Pulse Width Modulators. Although there is limit on clock frequency which is to be used in digital circuit. This paper describes simple Digital Pulse Width Modulator with optimized Area using Field Programmable Gate Arrays (FPGA). The proposed architecture uses a phase shi...

The marketing and operations management arms in a firm must work in coordination – marketing efforts to create demand go to waste if supply is suboptimal, and vice versa. However, achieving this coordination has remained a long-standing problem, because in most firms these units are managed in a decentralized manner. A major source of conflict is that marketing compensation is usually heavily w...

Purpose: The problem includes the three objective functions: minimizing the total cost, the net rejected items and the inverse total value of purchasing (TVP), while satisfying capacity and demand requirement constraints. Design/methodology/approach: The model is established for supplier selection problem and later the proposed single objective model is used to calculate the optimum order quant...

The NHS is now in its third year of contracting. We are repeatedly told by the Department of Health that purchasing is "the main vehicle for achieving better health and better health services."' To what extent are health authorities in a position to ensure more equitable distribution of health by commissioning the most appropriate package of high quality and value for money services?"2 Below I ...

We consider a biodiesel production company that collects waste vegetable oil from source points that generate waste in large amounts. The company uses the collected waste as raw material for biodiesel production. The manager of this company needs to decide which of the present source points to include in the collection program, which of them to visit on each day, which periodic routing schedule...

A given overall aggregate sales history could be the realization of very different purchasing scenarios. For example, a low sales level for a new product could be the result of: (i) many consumers making a trial purchase but very few of them making a repeat purchase (because the product does not meet their expectations), or (ii) a low trial rate but a high level of repeat purchasing amongst the...