Technical problems with compression units in mechanical vapour recompression systems

Investigation of Heat Loss in Ethanol-Water Distillation Column with Direct Vapour Recompression Heat Pump

Vapour recompression system has been used to enhance reduction in energy consumption and improvement in energy effectiveness of distillation columns. However, the effects of certain parameters have not been taken into consideration. One of such parameters is the column heat loss which has either been assumed to be a certain percent of reboiler heat transfer or negligible. The purpose of this st...

Approximation of Grammar-Based Compression via Recompression

In this paper we present a simple linear-time algorithm constructing a context-free grammar of size O(g log(N/g)) for the input string, where N is the size of the input string and g the size of the optimal grammar generating this string. The algorithm works for arbitrary size alphabets, but the running time is linear assuming that the alphabet Σ of the input string can be identified with number...

Energy Conservation in Ethanol-Water Distillation Column with Vapour Recompression Heat Pump

Problems of materials in mechanical heart systems.

C'rirretill>available inaterials for niechaiiical hear ,terns are siirveyed, particrilarly with respect to long-term implatitatioti, from the viewpoiiits of availability a i d workability, mechariical aiid biological durability, and compat ibility with hlocid and tissiie. Some materials have one or more desirable physical properties, hut tione off'ers perfect blood and t lie compatibility. 1Ird...

Longest Common Extensions with Recompression

Given two positions i and j in a string T of length N , a longest common extension (LCE) query asks for the length of the longest common prefix between suffixes beginning at i and j. A compressed LCE data structure is a data structure that stores T in a compressed form while supporting fast LCE queries. In this article we show that the recompression technique is a powerful tool for compressed L...