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Abstract
Examining the meaning of a word with the approach of cognitive semantics, through the radial network, analyzes the change of the meaning of the word in different contexts in the form of a systematic pattern. In this view, the word has a central meaning, which is also seen in the secondary concepts. Based on this, the secondary meanings that are proposed for the word are somehow tied with the central meaning and a semantic network is formed. Due to the fact that this theory can explain the semantic development of the word and clarify how they came about, we decided to use it to explain the semantic network of zikr in the Qur'an with a descriptive and analytical method. Dealing with the word zikr according to this theory leads us to the following conclusions: The linguistic remembrance of Allah along with the presence of the heart is the central meaning of the word zikr. This meaning is the central core of the coherent semantic network, which consists of six radial meanings based on the first meaning.
 

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The prototype of any category is the member or set of members of a category that best represents the category as a whole. Not everything fits perfectly in a category. Categories are defined by an intersection of properties that make up their members. The language is set of different categories and we should attend to categories in language teaching. Gender and mother language are among these components that should be considered in the teaching and learning process. Research about prototype is necessity because no basic prototype study, and the impact of gender and mother language on the formation of this concept have not been made among farsi lernears. As a result, one group of forty speakers who were learning Farsi selected. Each group included 20 men and 20 women. Men from Hojjatieh school and women from the Bent-Alhoda center were selected, both under the supervision of the Almustafa international university. In the category of domestic animals, 41.17% of men chose cows, while the same percentage of women chose sheep, horses, and dogs. In the field of sports, in addition to the first choice, the second and third choices of women and men were completely different, men have chosen shooting and cricket, and women have chosen volleyball, football and walking. Also, in the category of vehicles, although both sexes chose airplane as their first choice, their next choices were different, men chose train and car while women chose bus, car and bicycle.
 

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1- Introduction
Prepositions are amongst the multi-meaning and very flexible words in the language of the Quran with extensive concepts. It is clear that God has bestowed on this attribute to convey his purpose. The application of the prototype theory to the analysis of the focal meaning and the radial meanings of these letters can certainly provide a coherent semantic network for each of them. Accordingly, the purpose of this study is to explain the focal meaning of the word "on" as one of the most widely used letters in the Quran with a cognitive approach. This will be achieved after identifying the trajectory and the Landmark which proves the existence of a coherent network of concepts that are linked to the prototype.
2. Questions and hypotheses
The most important questions and hypotheses of this research are:
1. What is the focal meaning and radial meanings of On in Quranic discourse?
2. How the relationship between the focal meaning and the radial meanings of “On” in the form of a meaningful network can be explained?
3. How the contrast between traditional and cognitive look at the Prepositions of the story is explained?
The hypotheses are as follows:
- The focal meaning of “On”, as in traditional sources, is "superiority".
- The focal meaning of "superiority" is the core of the semantic network of the word "On". Other distinct meanings of "On" are connected to the central core with the help of two "compromise and contradictory" clusters.
- The semantic network model in the cognitive perspective has confirmed the multidimensional problem of letters in classical sources, but the example template points out that the radial meanings of a letter must be coherent with a focal meaning. According to this model, existence of a letter instead of another letter is rejected because of its lack of semantic communication.
3. Research Innovation
What distinguishes this study from the views of traditional trainers is that modern linguistics for each of the superscripts considers a central or focal meaning that is called the supreme example, and another meaning that is related to this sense, is in fact its expanded or metaphorical meaning. They create a coherent semantic network for each of these letters. However, in the traditional perspective, there is no coherence between the meanings for a term with its initial meaning.
4- Method
Based on the belief that the prepositions are a rich source in the methodological understanding and interpretation of the Quran, the present study seeks to rely on a descriptive-analytical method regarding the multidimensional theory of these letters by considering the basic elements of this approach such image schema, prototype pattern, trajectory and landmark .The semantic network provides a coherent semantic meaning for this letter in the Quranic verses.
5- Results and Discussion
The Quranic data review points out that the focal meaning of the Jar letter 'On', is 'superiority'. This meaning is the central core of a coherent semantic network, consisting of twelve radial meanings in two semantic clusters (compromise and contradictory) based on the first meaning. It should be noted that, using the cognitive model of the prototype, replacement of On into the Prepositions "men", "fi", "baa" and "laam" in the Quranic discourse was distorted.
 

 

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Semantic broadening is one of the important processes of semantic change that has long been studied by experts and especially by historical-philological semanticists. In this process, which occurs over time, the meaning of a word broadens from time period A to time period B and thus, in addition to its previous meaning, the word includes a new concept. Semantic broadening over time leads to a multitude of meanings. A word is used to refer to a new unit of language in terms of its similarity to a new concept, and based on the Prototype theory. As such, in addition to its original meaning, it is also applied in a new sense. This "similarity" has, in many cases, led to confusion between semantic broadening and metaphor, and a group of words that has undergone semantic broadening is considered as metaphors. The present research, in addition to explaining semantic broadening, examines the difference of this process with metaphor, and, in particular, by emphasizing Persian verbs, tries to show that many of the constructs considered as metaphor, are, in fact, instances of semantic broadening that, as a result of this process, have gained multiple meanings. Relying on examples, in particular, examples of Persian verbs, this paper attempted to emphasize the distinction between semantic broadening and metaphor, and to show that, by tradition, in our metaphor, one tends to separate the tenor from the simile and apply it on other contexts. However, in the case of semantic broadening, the tenor is by no means used in different contexts. Words are semantically broadened over time and their semantic scope expands, which is a process quite different from metaphor. As such, the results of this study indicate the subtle distinction that exists between semantic broadening and the process of metaphor, which is often neglected. In metaphor, the "tenor" is derived from the simile, and is used in other sentences instead of the "vehicle"; in a way that the "tenor" adopts the semantic behavior of the “vehicle”. However, in semantic broadening, an independent process occurs, and what emerges as the process of semantic broadening is the semantic expansion of other units of the simile.
 

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The main purpose of the present study was investigating concrete, temporal and abstract meanings of prepositions "in" for Persian speakers and "dar" for non-Persian speakers. This study attempted to examine the impact of traditional approach compared to cognitive approach in learning different concepts of the prepositions. For this purpose, first the spatial and prototype meanings of preposition "in" were studied from Oxford Advanced Learner Dictionary (2016) and then the spatial and prototype meanings of preposition "dar" were extracted according to Farhang Sokkan (Anvari, 2002), respectively. Finally, sentences and phrases including these prepositions were chosen according to Vision 1 (2016) and Farsi Biamoozim (2009) in the intermediate level. Data collection, took place among 30 students of Noor high school and 30 non-Persian learners at Jame-e-Almostafa of Mashhad.  Sample groups were selected randomly, then they were divided into control and experimental groups. Data analysis in Independent T-Test (comparison of pre-tests in control and experimental groups) displayed there isn’t significantly improvement between prior knowledge of learners before teaching (control pre-tests 12.57, experimental pre-tests 12.43), whereas comparison of post-tests showed there is significantly more improvement between in experimental groups compared to control groups (control post-tests 12.33, experimental post-tests 25.73). The results indicated that compared to traditional approach, applying cognitive method had significantly improvement in teaching different concepts of the prepositions. The results of this paper suggests effective strategies in teaching prepositions for language teachers.

1.  Introduction

Persian Language learning is one of the most complex issues in teaching foreign languages. One of the most important issues in language is teaching and learning prepositions. Rote learning lacks comprehensive analysis of the different senses of prepositions.  Compared to other approaches, cognitive linguistics offers the aspects of meaningful learning (Song, 2013: 1). Cognitive approach to language and grammar is shown a systematic form.  Accordingly, in this paper, we are going to examine the impact of traditional approach compared to cognitive approach in learning different concepts of the prepositions "in" for Persian speakers and "dar"  for non-Persian speakers based on Langacker “Domain theories” (1987).
 

2.  Literature Review

The present study is concerned with a Cognitive Linguistics meaningful approach to teaching prepositions. This study attempted to examine the impact of cognitive approach compared to traditional approach in learning different concepts of the prepositions. In the interaction between human beings and their environment, human experience is imposed on a structure in terms of natural dimensions of the kind. In some studies (Lakoff & Johnson, 1980; Tyler & Evans, 2003; Lakoff & Johnson, 1987; Langacker, 1987) there are theoretical definitions to explain Cognitive Linguistics and its impacts in teaching language and prepositions. Other researches (Song, 2013; Tyler, Mueller & Ho, 2011; Rasekh Mahand & Ranjbar Zarabi, 2013; Golfam & Yoosefi Rad, 2006; Badamdari, Alizadeh, Eghbali & Vahidi, 2017) investigated experimental method to teaching different prepositions by Cognitive Linguistics approach. Their findings shows applying cognitive method had significantly improvement in teaching different concepts of the prepositions.
 

3.  Methodology

In this paper, first of all, based on Tyler and Evans' prototype criteria (2003), we have determined the prototype and different meanings of the spatial and prototype meanings of preposition "in" from Oxford Advanced Learner Dictionary (2016) and then the spatial and prototype meanings of preposition "dar" according to Farhang Sokkan (Anvari, 2002), respectively. Finally, sentences and phrases including these prepositions were chosen according to Vision 1 (2016) and Farsi Biamoozim (2009) in the intermediate level. Data collection, took place among 30 students of Noor high school and 30 non-Persian learners at Jame-e-Almostafa of Mashhad.  Sample groups were selected randomly, then they were divided into control and experimental groups. Data analysis were estimated by spss (Independent T-Test) in control and experimental groups.
 

4.  Conclusion

The present study was concerned with a cognitive approach to provide an instructional methods for Persian and Non-Persian speakers to learn prepositions “in” and “dar”. The results of the study will enrich our understanding of reconceptualization and learning by a Cognitive approach. In this study, we taught the spatial as well as other senses of these prepositions. Data analysis in Independent T-Test (comparison of pre-tests in control and experimental groups) displayed there isn’t significantly improvement between prior knowledge of learners before teaching (control pre-tests 12.57, experimental pre-tests 12.43), whereas comparison of post-tests showed there is significantly more improvement between in experimental groups compared to control groups (control post-tests 12.33, experimental post-tests 25.73). The results indicated that compared to traditional approach, applying cognitive method had significantly improvement in teaching different concepts of the prepositions. The findings open up an effective perspective strategies in teaching prepositions for language teachers

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Shape Memory Alloy (SMA) wires are currently employed in robotics as actuators of prosthetic limbs and medical equipment due to advantages such as reducing the size in the application, high power-to-weight ratio and elimination of complex transmission systems. In this paper, a fuzzy control system has been designed and implemented for an artificial finger using the SMA actuators. This robotic finger has been designed and modeled with three revolute joints and three SMA wires as the tendon in order to adduction each phalange of the finger and torsional springs to restore them to their original positions. The dynamic model of the finger has been simulated in MATLAB/Simulation. Based on the simulation results, optimal choice of parameters and system features has been obtained and a prototype of finger has been built and tested. Gains of the controllers are set so that the current applied to SMA wires has minimum overshoot and the output of the system has minimal time to achieve stability. The comparison between the simulation results and the actual measured data show that the simulated model is accurate.