In this paper, we investigate various concepts of leftmost derivation in grammars controlled by bicoloured digraphs, especially regarding their descriptive capacity. This approach allows us to unify the presentation of known results regarding especially programmed grammars and matrix grammars, and to obtain new results concerning grammars with regular control, and periodically time-variant gram...

It is well-known that certain classes of classical categorial grammars are learnable, within Gold’s paradigm of identification in the limit, from positive examples. In the search for classes which can be learned efficiently from strings, we study the class of 2-letter rigid grammars, which is the class of classical categorial grammars with an alphabet of two letters, each of which is assigned a...

Due to the increasing complexity of today’s logistic systems, new planning and control methods are necessary. Autonomously controlled processes are a possible solution to cope with these new requirements. In order to verify this thesis, the development of an evaluation system is necessary which measures the logistic objective achievement, the level of autonomous control and the level of complex...

Margiad E. Williams, Judy Hutchings, Tracey Bywater, David Daley, Christopher J. Whitaker Centre for Evidence-Based Early Intervention, Bangor University, Bangor, UK Institute for Effective Education, University of York, York, UK School of Community Health Science, Queens Medical Centre, University of Nottingham, Nottingham, UK North Wales Organization for Randomised Controlled Trials in Health...

In AAMT there are two investigation committees, one the study group on efficient use of MT systems, and the other the study group on controlled language for MT. There is another similar group in Japan Electronic Industries Development Association (JEIDA), which investigates the proper use of MT systems including the establishment of MT evaluation methodology. The foliowings are mainly based on ...

Electrospinning is a simple and versatile encapsulation technology. Since electrospinning does not involve severe conditions of temperature or pressure or the use of harsh chemicals, it has great potential for effectively entrapping and delivering bioactive compounds. Recently, electrospinning has been used in the food industry to encapsulate bioactive compounds into different biopolymers (carb...

experimental study of the cyclic behavior of unsaturated materials is more complex than that of the saturated materials due to the required equipment, experience and time. furthering investigations in the field of unsaturated materials is necessary to better understand its complexity and sensitivity of unsaturated cyclic parameters to different determinants such as suction path, stress path, lo...

the catalytic oxidation of toluene to benzoic acid in the liquid phase has been studied in an un-stirred tank reactor. low concentration of acetic acid was added in order to increase the solubility of the catalyst in toluene. the dependence of the rate of reaction on the concentration of toluene catalyst and oxygen pressure was studied. it has been suggested that liquid phase oxidation of tolue...

in the present study, floating drug delivery beads (fdds) were prepared with sodium alginate/ starch blend as a matrix, sodium hydrogen carbonate as a pore forming agent, methyl cellulose as a binder and barium chloride solution as a hardening agent. in order to prepare the beads with different porosity and morphology the ratio between pore forming agent to polymer blend and ratio of the consti...

background: this study aimed to assess the effectiveness of topiramate, a glutamate-modulating agent, in patients with treatment-resistant obsessive-compulsive disorder (ocd) as an adjunct to serotonin reuptake inhibitors (sris). materials and methods: thirty-eight patients with refractory ocd, were randomly assigned to receive topiramate or placebo. this study was designed as a 12-week, double...