Ito, M. and G. Thierrin, Congruences, infix and cohesive prefix codes, Theoretical Computer Science 136 (1994) 471 485. A language L _~ X * is called a cohesive prefix code if xLyc~L ~ 0 implies that y = 1 and xL c L for any x, y~X*. An example of cohesive prefix codes is an infix code. We determine first the structure of cohesive prefix codes and then we study several relationships between max...

Semiconductors with wide bandgap are crucial for optoelectronic devices and energy applications owing to their electron confinement, high optical transparency tunable electrical conductivity. Therefore, in this study, the quantum confinement effect of chalcogenide semiconductor nanocrystals such as ZnS, ZnSe, ZnTe, SnS, SnSe SnTe studied based on Brus model using effective mass approximation, h...

Cohesive laws describe the resistance to incipient separation of material surfaces. A cohesive finite element is formulated on the basis of a particular cohesive law. Cohesive elements are placed at the boundary between adjacent standard volume finite elements to model fatigue damage that leads to fracture at the separation of the element boundaries per the cohesive law. In this work, a cohesiv...

In recent years, writing, as one of the most important communicative skills, has been drawing increasing attention in English language teaching in China. This paper presents an investigation into the use of decomposition in Latent Semantic Analysis (LSA) to analyze textual coherence. Based on LSA and Halliday and Hasan’s (1976) concepts of cohesion and their categorization of cohesive devices, ...

This paper discusses the development of writing skills of Dutch students of English and Spanish as foreign languages. Essays written in three consecutive years were analyzed for essay length, word length, and type/token ratio — reflecting linguistic competence. A selection of essays was analyzed for argument structure and the use of cohesive devices. These same essays were ranked holistically b...

This paper describes a visually guided robot that can plan paths, construct maps and explore an indoor environment. The robot uses a trinocular stereo vision system to produce highly accurate depth images at 2 Hz allowing it to safely travel through the environment at 0.5 m/s. The algorithm integrates stereo vision, occupancy grid mapping, and potential field path planning techniques to form a ...

Abstract The present study is an attempt to investigate the relationship between cohesive readability of expository texts and reading comprehension in EFL students with different proficiency levels. One hundred students formed the participant of this study. They were undergraduate students majoring in English at University of Isfahan. To collect the relevant data, participants were divide...

Cohesive frames are linguistic elements that precede the grammatical subject in the main clause. This study investigated the frequencies and communicative purposes of cohesive frame types in results and discussion section of research articles from 4 disciplines. To run this study, 40 results and discussion sections of research articles were selected from 4 disciplines, namely Applied Linguistic...