this paper presents the design procedure and implementation results of a proposed hardware which performs different satellite image compressions using fpga xilinx board. first, the method is described and then vhdl code is written and synthesized by ise software of xilinx company. the results show that it is easy and useful to design, develop and implement the hardware image compressor using ne...

the purpose of this article is to investigate a two-echelon supply chain inventory problem consisting of a single-vendor and a single-buyer with controllable lead time and investment for quality improvements. this paper presents an integrated vendor-buyer inventory model in order to minimize the sum of the ordering cost, holding cost, setup cost, investment for quality improvement and crashing ...

We study the earliness-tardiness scheduling problem on a single machine with due date assignment and controllable processing times. We analyze the problem with three different due date assignment methods and two different processing time functions. For each combination of these, we provide a polynomialtime algorithm to find the optimal job sequence, due date values and resource allocation minim...

0360-8352/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.cie.2011.08.019 ⇑ Corresponding author. Tel.: +98 111 2197584; fax E-mail addresses: [email protected] (V. Kay com (I. Mahdavi), [email protected] (G In most deterministic scheduling problems job processing times are considered as invariable and known in advance. Single machine scheduling problem with controllable proces...

Sludge is a byproduct of wastewater processing suitable for biogas production. The biogas consisting of about 60% methane can be used to generate electricity and heat. A data-driven approach for optimization of biogas production process in a wastewater treatment plant is presented. The process model is developed using routinely collected data categorized as controllable and uncontrollable varia...

We present a unified analysis for single-machine scheduling problems in which the actual job processing times are controlled by either a linear or a convex resource allocation function and also vary concurrently depending on either the job’s position in the sequence and/or on the total processing time of the already processed jobs. We show that the problem is solvable in Oðn log nÞ time by usin...

Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and an accurate answer is returned. Batch mode processing has long been unacceptable to users. In this paper we describe the need for online aggregation processing, in which aggregation operators provide ongoing feedback, and are c...

Four studies examined whether verbal behavior is mindful (cognitive) or mindless (automatic). All used Langer, Blank, and Chanowitz's (1978) experimental paradigm. Experimenters approached subjects at copying machines and asked to use it first. Their requests varied in the amount and kind of information given. Study 1 found less compliance when experimenters gave a controllable reason (". . . b...