آرایه

Open Access Article

1 - The Influence of the Arabic Language on Fifth Century's Poetries
Ibrahim Fallah

Language and literature express the identity, originality and personality of a nation. The connection and influence between Persian and Arabic language and literature has always been reciprocal. The influence of Arabic on Persian dates back to afore the advent More

Language and literature express the identity, originality and personality of a nation. The connection and influence between Persian and Arabic language and literature has always been reciprocal. The influence of Arabic on Persian dates back to afore the advent of Islam. However, by manifestation of Islam, the mentioned influence spread in Iranian thought and culture, but the fifth century which is one of the brilliant centuries of the Islamic period, the influence of Qur'an and Arabic on Persian poetry is more visible than previous periods. Since Arabic literature enriches Persian language and literature, its influence has been in various fields including words, phrases, imagination, thought, and style. As Arabic is the language of Qur'an and sacred texts, Iranians and Persian literature paid special attention to it and were greatly influenced by it. The present research entitled "The Influence of the Arabic Language on Fifth Century's Poetries" seeks to study and analyze the impact of Arabic language on fifth-century poetry as well as to examine the influential genres. The results show that the types of influence of Arabic language on fifth century's poems include applying Arabic words and phrases, contents of Arabic concepts translated into Arabic verses, rhetorical figures of speech such as quotation and simile. Manuscript profile

Open Access Article

2 - A Semantic Study of Optative Style in the Holy Quran
Marzieh Kohandel Jahromi Mahmood Abdanan Mahdezade

One of the Holy Quran’s supremacies in eloquence and its flawless language is that it has a special manner of expressing different subjects, and since the Holy Quran has been revealed in a literary language, it expresses its extraordinary messages in the most beau More

One of the Holy Quran’s supremacies in eloquence and its flawless language is that it has a special manner of expressing different subjects, and since the Holy Quran has been revealed in a literary language, it expresses its extraordinary messages in the most beautiful and artistic style. One of these styles or methods is the optative style .The present article attempts to cite and study the verses displaying the use of the optative style. Manuscript profile

Open Access Article

3 - A study on Semantic development in Holy Quran
Farhad Abdollah Zadeh Foad Abdollah Zadeh

Terms and meanings have inseparable relation with each other in Holy Quran; this tight relationship creates high capacity in semantic development. Holy Quran has chosen easy and abstainer patterns which include complete meanings while having attractive and deep appearan More

Terms and meanings have inseparable relation with each other in Holy Quran; this tight relationship creates high capacity in semantic development. Holy Quran has chosen easy and abstainer patterns which include complete meanings while having attractive and deep appearance in a way that a single term or a phrase containing clear appearance can be interpreted differently and various. The goal of the present paper is to express various meanings of lexical and semantic factors which cause creation or development of meanings in terms and phrases in descriptive – analytical method and by applying Holy Quran's Verses.  One of the outcomes of the research is that Holy Quran applies various morphological and rhetorical rules and methods which conduces semantic development. Manuscript profile

Open Access Article

4 - Psychological schemas Syntax-to-view interface In Forough Farrokhzad's Poem "Gift"
Rashin Mobasheri Hossein Hasanpour Alashti Morteza Mohseni

10.30495/dk.2022.1940505.2340

The way of thinking that results from the influence of brain processes can produce a variety of syntactic rules; Therefore, various factors including motivation, fear, emphasis, etc. cause the position of words to shift and produce different types of expressive and verb More

The way of thinking that results from the influence of brain processes can produce a variety of syntactic rules; Therefore, various factors including motivation, fear, emphasis, etc. cause the position of words to shift and produce different types of expressive and verbal arrays, which in turn creates different visual regions. Schemas are the common boundaries between author, text, and audience that can be represented based on a particular visual logic. Based on this approach and considering the overlap of the interpretation of the text and the author and the psychological confirmations of Forough Farrokhzad's poem "Gift", she uses the cinematic image, because this poem is based on depth images and positive images through (Vision) ability and visualization (Light and darkness) of action. In terms of the structure of imagery, night and darkness, are in the center, Poetic images have been created using symbolism. with the aim of brevity that justifies the closed view. The tone of this image is sad based on the music of the poem as a result, it requires a slow rhythm in the sequences, this poem has two paragraphs that, depending on the content, make the beginning and end of the image contrast. This poem is also functionally social and as a critical statement, it deals with both the critique of society and the way out of social and cultural impasse. Manuscript profile

Open Access Article

5 - Lexical Ambiguity, Exclusive Style of Hafiz
Ahmad Zakeri Assad Safari Bandpey Mohammad Sadeqi

Manuscript profile

Open Access Article

6 - Robust Direction of Arrival Estimation of Wideband LFM Signals using Dechirping Algorithms with a few Snapshots in the Linear Array
Abbas Partovi Sangi Jasem Jamali Mohammad Hossein Fatehi Dindarlou Mohammad Mehdi Ghanbarian

10.30495/jce.2022.689027

Wideband linear frequency modulation (LFM) signals are widely used in systems such as radar, sonar and mobile. DOA estimation algorithms LFM signals rely on a large number of time frames (Snapshot). Therefore, they are not suitable for low power and real-time applicatio More

Wideband linear frequency modulation (LFM) signals are widely used in systems such as radar, sonar and mobile. DOA estimation algorithms LFM signals rely on a large number of time frames (Snapshot). Therefore, they are not suitable for low power and real-time applications. In this paper, we present a low computation based estimation method based on the SPICE algorithm for linear arrays using the Fourier transform FFT. The method is to first develop the dechirping algorithm for LFM signals using the FFT converter, then modify the SPICE algorithm for uniform linear arrays (ULA), then obtain the DOA calculations for a few number of snapshots with low computational volumes. The simulation results of the proposed MSPICE algorithm (i.e. modified SPICE algorithm) show that the proposed algorithm is better than other algorithms such as MUSIC and SPICE. We have shown that the proposed method has acceptable accuracy in both low SNRs and low error in high SNRs. In addition, in terms of computational volume, it is much less than the MUSIC and SPICE methods and will have a good robustness compared to other methods. Manuscript profile

Open Access Article

7 - Synthesis of linear array of antennas by Newton binomial method to reduce the level of lateral petals of the beam
Maryam Rahimi kazeroni Ghasem Ravaei

Antenna arrays are one of the most susceptible types of antennas in this field due to having the necessary capabilities for beam shaping, beam conduction, direction, and high gain. In general, in pattern synthesis of an array of antennas, the main focus is on determinin More

Antenna arrays are one of the most susceptible types of antennas in this field due to having the necessary capabilities for beam shaping, beam conduction, direction, and high gain. In general, in pattern synthesis of an array of antennas, the main focus is on determining the excitation of the antennas to produce a desired pattern. The problem of determining the excitation of the antennas in the array can be divided into three main categories. The first issue of antenna pattern synthesis is the production of a pattern whose zeros are in the desired directions. The second problem is the production of a pattern with a very narrow beamwidth that the level of the lateral petals is very low compared to the main petal. The third problem is the production of a shaped beam. In this paper, the pattern synthesis of an array of antennas with very narrow beams and very low lateral petal surface area compared to the main petal is discussed. There are several different ways to do this in antenna articles and books. One of these methods is Newton binomial method. In this paper, a linear array is used to produce a very narrow beam and reduce the surface of the lateral petals using Newton Pattern Synthesis. Manuscript profile

Open Access Article

8 - Examine the code used in the RAID structure and improve these codes by their organized structure by Heming code
Hasan Ghasemi Ali Zaghian

Array codes are error-correcting codes of very low complexity, originally used for hacking and decryption in RAID and other storage applications. The structure of these codes is very simple and the implementation of coding and decoding algorithms for them is easy. Altho More

Array codes are error-correcting codes of very low complexity, originally used for hacking and decryption in RAID and other storage applications. The structure of these codes is very simple and the implementation of coding and decoding algorithms for them is easy. Although these codes have a high rate, due to their design limitations, they do not get the highest possible rate. In fact, Hamming codes get the highest possible rates for their design structure. In this paper, we compare the rate and complexity of array codes when compared to Hemingway codes and provide a more efficient rate for these codes by using the structure of Heming code in array codes. Manuscript profile

Open Access Article

9 - Estimation for signal reception in mobile smart antennas
Farnush Heidari

  In this paper, different estimation methods for signal radiation will be investigated. We will divide these methods into several categories. The first category is conventional or classical methods that do not affect the signal and noise properties and only estima More

  In this paper, different estimation methods for signal radiation will be investigated. We will divide these methods into several categories. The first category is conventional or classical methods that do not affect the signal and noise properties and only estimate the signal direction according to the power of the array. The second category of these methods is called subspace methods or methods based on special vectors. Other methods are maximum correct methods Manuscript profile

Open Access Article

10 - Design and Synthesis of an Embedded Processor to Sort Data Based on the Internal Memory of a Programmable Logic Array
H. Amin Zadeh

Sorting is still one of the main challenges in processing input digital binary data. Depending on implementation of the sorter, the three main factors are speed, chip area and power consumption.  When realized on a floating point gate array (FPGA), sorter acts like More

Sorting is still one of the main challenges in processing input digital binary data. Depending on implementation of the sorter, the three main factors are speed, chip area and power consumption.  When realized on a floating point gate array (FPGA), sorter acts like an embedded processor beside many other processing units. For these implementations, the number of CLBs occupied by the sorter is very important. In this paper, a new algorithm is proposed to implement sorter on FPGA using minimum number of CLBs. Unlike previous algorithms which employ comparator to sort data, this high-power large-area unit is not needed in and most of the process can be fulfilled by the available random access memory (RAM). In addition to less number of CLBs, this approach also improves reliability. To show the effectiveness of the proposed technique, a 256 word sorter with 16 bits word length is synthesized on xilinx spartan 3 XC3S1500 based on this method. Manuscript profile

Open Access Article

11 - Congeries, the Ornament of All Figures of Speech
Seyed Mojtaba Hosseini, Gholamreza Fathi,

Congeries is the most effective figure of speech that is created by the poet    through choosing approp riate words. Also called “taxis,” congeries makes other figures of speech take an active role in the literary work. However, literary-term More

Congeries is the most effective figure of speech that is created by the poet    through choosing approp riate words. Also called “taxis,” congeries makes other figures of speech take an active role in the literary work. However, literary-terminology books do not give a comprehensive definition of the term “congeries”; thus, they need to be reviewd. This paper is an attempt to offer a correct definition of “congeries” through various examples.     Manuscript profile

Open Access Article

12 - Homa’s Wing Shadow
Maryamossadat Ranjbar Fateme Kazerani

According to myths narrations، Homa (osprey) was an auspicious fowl and prosperity messenger that sho was under the the protection of her، would have been wealthy and prosperous. This fowl is always mentioned by poets because it’s an osprey and didn’t hurt a More

According to myths narrations، Homa (osprey) was an auspicious fowl and prosperity messenger that sho was under the the protection of her، would have been wealthy and prosperous. This fowl is always mentioned by poets because it’s an osprey and didn’t hurt any thing. Although Saeb has used these contents in his poetry، but has used literary arrays too، for example irony، allegory and simile the same as poets on his age. He has used norm breaking to present a different personality of osprey. Saeb believed that the reason of instability state of osprey and his disliking to her is because of her dark and transient shadow. The image of osprey presented by Saeb has made her as a terrestrial and tangible created.  Also he believed that the reason of auspiciousness of this myth fowl is because of her humility and the reason of her fame is her satisfactory to some bones. So، Saeb didn’t want to be under the protection of osprey (homa) because he believed that prosperity is an inherent adjective not acquire. He used this myth fowl to describe nature and unimportant issues، that all of them are mentioned above and are analyzed in different accepts.   Manuscript profile

Open Access Article

13 - A study of the aesthetics of language and literary arrays in Saadi poetry
shahrbanoo ranjbar Mohammad ali Davood abadi mohammad reza zaman ahmadi

If we do not call Sheikh Ajal, Saadi Shirin Sokhan, the lord of Persian poetry and literature, we should undoubtedly and without exaggeration consider him one of the brightest stars in the vast expanse of Persian language, literature and culture. As the great and pionee More

If we do not call Sheikh Ajal, Saadi Shirin Sokhan, the lord of Persian poetry and literature, we should undoubtedly and without exaggeration consider him one of the brightest stars in the vast expanse of Persian language, literature and culture. As the great and pioneers of Persian literature know Saadi's words and expression as eloquence, rhetoric, simplicity and beauty, these characteristics have caused Sheikh Shiraz's words to continue to capture the hearts of his audience from all walks of life despite centuries of conquest. Saadi's poems are pleasant, concise and tangible for all Persian speakers. What has been exuded from Saadi's pen is in a beautiful word, and this beauty attracts Saadi's poetry. Saadi is a unique master of language, whether in the level of words and phrases, or in the method of effective and captivating sentences and endings, or in the use and invention of literary innovations and arrays, or in creative illustrations. Saadi connects all these great masters in composing poetry with his pure feeling, emotion and exemplary humanity, and according to his own words, if the speaker speaks, the reader will feel this unique beauty. In fact, for this reason, it must be said that Saadi is a poet of beauty and aesthetics. Manuscript profile

Open Access Article

14 - The process of political poetry after constitutionalism based on the opinions and opinions of Adib al-Mamalek Farahani
Rohollah Nabi Abdol Yousefi Seyyed Mahmoud Seyed Sadeghi Dr. Maryam Parhizkari

The literature of the Qajar era underwent fundamental changes in the structure of Iran's political, social and cultural spheres due to the constitutionalism movement. This modernity left a tremendous impact on the poetry and prose of this period. One of the most importa More

The literature of the Qajar era underwent fundamental changes in the structure of Iran's political, social and cultural spheres due to the constitutionalism movement. This modernity left a tremendous impact on the poetry and prose of this period. One of the most important features of the poetry of the constitutional era is the difference and type of vision of the poets towards the existing realities, which led to the creation of new themes. One of the most important themes in Persian poetry of the constitutional era is "freedom, homeland and justice". In this research, the author aims to investigate the literary arrays in the political poems of Adib al-Mamalek Farahani, using descriptive-analytical method and library tools. Adib al-Mamalek is one of the poets of the constitutional era and the awakening period, and most of his poems are about political and social themes. The results of the research show that Adib has used the literary arts in his poems to address the themes of homeland, freedom and justice, and because he was a religious person, in addition to paying attention to the hints related to Iran before Islam, he also paid attention to Iran during the Islamic period. Paying attention and regarding the issue of love for the country, his patriotism was not accompanied by hatred of Arabs. Recommendations for rule of law, criticism of ignorance and neglect, criticism of the inappropriate performance of the parliament, criticism of the judiciary and attention to justice are considered other poetic themes of Adib. Manuscript profile

Open Access Article

15 - چندگونگی ایهام در غزلیات سعدی
seyyed mohsen mehdi niya

Manuscript profile

Open Access Article

16 - A new look at the poetic prose of Naftha - al – Masdour
farideh salamat niya saied kheirkhah barzaki

Naftha-al-Masdour is a book written by  shahab-el-din mohammad  khorandazy, during the mongl’s attack. the prose of this book is mixed with the stylistic device, so the prose of Naftha-al-masdour is equal to the poem. the domination of the writer to use More

Naftha-al-Masdour is a book written by  shahab-el-din mohammad  khorandazy, during the mongl’s attack. the prose of this book is mixed with the stylistic device, so the prose of Naftha-al-masdour is equal to the poem. the domination of the writer to use the stylistic device and the images poetic more closer the prose of this book to a poem. there is not only the lots of the stylistic device but also there is the feeling of humanity and equal the explication’s poetic .so we can consider this book as a poetic prose. this prose is a literary prose that its writer use the images and pictures poetic and the prose in the same time. if these stylistic devices are used more closer to a poem. in this search, we try to show the stylistic device and the beuty poetic of the Naftha-al-masdour, to help the ewaders to find another way to read the book. Manuscript profile

Open Access Article

17 - Aesthetics in the works of naser keshavarz
naser kazem khanlu hossein ariyan nasrin biranvand

Talk about artists and philosophers. In the past the aesthetics. Beautiful form of poetry in form and content elements interact with each other.in a review of chidrens poetry harmonic and rhythmic aesthetic of clear rational instrument of thought and fantasy of the orig More

Talk about artists and philosophers. In the past the aesthetics. Beautiful form of poetry in form and content elements interact with each other.in a review of chidrens poetry harmonic and rhythmic aesthetic of clear rational instrument of thought and fantasy of the original elements. To get a true insight and understanding of the singers can be of utility and aesthetics valve to make deep thoughts and inner worlds and poets became emotional and in this way to angles and khbayay entered their minds and by understanding and more insight immortal hesitated.The present research A comparative study of aesthetic array literal and spiritual works of  naser keshavarz and with the aim of introducing aesthatic aspects of chidrens portry naser keshavarz has been developed. This research method is descriptive and analytical nature and the purpose of theoretical and material provided library studies.The most important aspects of the aesthetic poetry  naser keshavarz on the outer side of the inner and spiritual music is studied. .The result of this research shows that the industry naser keshavarz expressive and innovative childrens poetry have special significance Manuscript profile

Open Access Article

18 - Design and Modeling of Ultrasonic Phased Array Testing and Ultrasonic waves propagation Simulation in Metal Plate by Finite Element Software (ABAQUS)
shahram yareiee

Ultrasonic Phased Arrays are an emerging technology in nondestructive testing and evaluation. The type of linear phased array probe is a prevailing type in which elements are placed side by side and longitudinally. In this paper ultrasonic phased array testing (UPAT) is More

Ultrasonic Phased Arrays are an emerging technology in nondestructive testing and evaluation. The type of linear phased array probe is a prevailing type in which elements are placed side by side and longitudinally. In this paper ultrasonic phased array testing (UPAT) is introduce and in order to modeling and design UPAT consideration of wave equation solution by Finite Element is proposed. ABAQUS 6.14 is used as finite element software. Wave propagation in two form is simulated, straight and inclined. Direct and sectorial scanning is based on these forms of waves propagation. Time delay is the most important issue that should be considered in UPAT modeling. Results of simulation is verified by comparing previous research in UT field. Finally, results in additional to proposed the obvious view of UPAT, it's so useful for properly design probes and defect detection UPAT devices. Using finite element methods in this field is cost and time effective. Manuscript profile

Open Access Article

19 - Architectural Properties and Decorations in Khosrowabad Mansion at Sanandaj
Mohammad Ibrahim Zarei

Several buildings in the city of Sanandaj have been identified from the Qajar period. One of the buildings of the Qajar period, the city is building Khosrvabad. The building is architecturally important buildings. Mansion is located next to large Chaharbagh. This collec More

Several buildings in the city of Sanandaj have been identified from the Qajar period. One of the buildings of the Qajar period, the city is building Khosrvabad. The building is architecturally important buildings. Mansion is located next to large Chaharbagh. This collection represents the governors and rulers of Kurdistan in the course of this type of large-scale construction. The certificate and the evidence available in this area as a summer resort Chaharbagh Ardalan has been used by governors. The building has a building area of about eight thousand square meters. Given its importance to local historians and even some foreign and domestic travelers has attracted. Making time in a poem on the tablet of stone on the building Khosrvabad 1223.AH Is clear. This is the script Nasta liq. On the inside courtyard of the building entrance has been installed. Fath Ali Shah is the history of the state. In this inscription, the word Chahar, pleasant palace and its founder and his son, Amanullah Khan, Fath Ali Shah Khosrow second of Kurdistan and governors have been mentioned. It was so impressive monuments of the city of Sanandaj. Should be noted that the architecture does not scale for any home in Sanandaj. Some features of this building is a unique building in the west of Iran. This historical record, process, change the structure of architecture, architectural Decoration and other home influence is the city of Sanandaj. Manuscript profile

Open Access Article

20 - Taxonomic value of flower morphology and spur in Persian Delphinium
Masoomeh Hasanbarani fariba Sharifnia Mostafa Assadi

The genus Delphinium belongs to the Delphinieae tribe and Ranunculaceae family; in Iran according to flora Iranica has 29 species with zygomorphic flower. In this study, the morphological information of flower and spur in Delphinium species was studied to determine the More

The genus Delphinium belongs to the Delphinieae tribe and Ranunculaceae family; in Iran according to flora Iranica has 29 species with zygomorphic flower. In this study, the morphological information of flower and spur in Delphinium species was studied to determine the importance of these characters in identifying species of this genus. Inflorescence condition, flower color, sepal flower, the color of sepals and petals comparative to each other, spur shape, spur curvature and spur tip were investigated. Statical analysis was conducted by SPSS software and cluster analysis was performed by Average linkage method. The results showed that flower color is one of the important traits in identifying Iranian Delphinium species, so that these genera are divided into two groups of yellow and non-yellow flower. Also, shape and spur curvature can differ from cylindrical, attenuate and inflatum. However, these character don’t correlate with distribution and the area where plant is grown. D. saniculifolium has a inflatum spur among specimens. Herbarium image of flower in different species are presented. Manuscript profile

Open Access Article

21 - Determining the Optimal Composition of Industrial Paint Formulation and Productivity Enhancement in Related Production Processes Using FMEA Technique and Taguchi Orthogonal Arrays
Ahmad Ebrahimi Mehdi Rezaei

10.30495/qjopm.2020.1874313.2558

In today's competitive world, various organizations have been constantly concerned with improving production processes as a way to enhance product quality.  Experiment design is a statistical quality control method leading to increased product quality, and thereby, More

In today's competitive world, various organizations have been constantly concerned with improving production processes as a way to enhance product quality.  Experiment design is a statistical quality control method leading to increased product quality, and thereby, enhanced manufacturing productivity. The present study set out to identify and prioritize the defects in industrial paints produced by Partofooldam industrial paint manufacturing company through failure mode and effects analysis (FMEA) and to determine optimal value levels for the identified effective factors using Taguchi Orthogonal Array Method. To serve the purpose, six trihedral factors and one dihedral factor were defined and the L18 array was selected for designing the required experiments. The findings indicated that the best paint quality was obtained in the experimental condition with over 10 micron granulation, peak metal temperature (PMT) of 232°C, high quality pigment, resin content of 55%, catalyst content of 4.1%, using medium quality plate and maximum content of additives. The effectiveness of the proposed method was determined by comparing the risk priority number (RPN) in FMEA before and after implementing Taguchi Method which showed a 19 point drop in the mean RPNs for all the identified problems. The results verified the impact of Taguchi’s method on reducing product failure risk and enhancing product quality.   Manuscript profile

Open Access Article

22 - مؤلفه‌های ادب غنایی در تاریخ جهانگشای جوینی
مهدی ضیایی

Manuscript profile

Open Access Article

23 - Angular Resolution Enhancement of the MIMO Radar by Using the 2D Nested Array Method
Rasoul Dehghani Rouhollah Aghajani

In phased array systems, increasing the array length and consequently increasing the number of antenna elements are needed to improve spatial resolution. It can be addressed by MIMO radars using orthogonal signals from multiple transmitters and using the virtual array. More

In phased array systems, increasing the array length and consequently increasing the number of antenna elements are needed to improve spatial resolution. It can be addressed by MIMO radars using orthogonal signals from multiple transmitters and using the virtual array. Virtual element's locations are derived from the convolution of the physical elements of the transmitter and receiver. To understand the functionality of MIMO radars, virtual array has been introduced. As the virtual array be larger, the radar angle resolution increase. Increasing the degree of freedom of the virtual array is highly dependent on the array of transmitter and receiver elements placement. The Nested Array which is one of the well-known methods in alignment of MIMO radar array elements, is investigated. In this article, the new nested array is examined and implemented in one dimension. The very innovative idea of this article is to use the new 2D nested array. A multi-step approach for implementing two-dimensional arrays using a new nested array for a MIMO radar is presented which can be generalized to any other structure with different number of elements. Finally, the advantages of the proposed method in terms of angular bandwidth of the main radar are presented. The results show that the proposed method is much more efficient than the other methods. The comparative results presented at the end of this article shows that the half-power beam width of the proposed method is approximately 0.3 degrees while this value for the nested method is more than 2 degrees. Manuscript profile

Open Access Article

24 - Robust DOA Estimation in the Presence of Mutual Coupling effect with Application in Auxiliary Vehicle Positioning
Zahra Dehghani Naser Parhizgar Hamid Azad

As an important branch of the Internet of Vehicles (IoV), vehicle positioning has drawn extensive attention. Traditional positioning systems based on a global positioning system incur long delays, and may fail due to obstructions. In this article, we propose an auxiliar More

As an important branch of the Internet of Vehicles (IoV), vehicle positioning has drawn extensive attention. Traditional positioning systems based on a global positioning system incur long delays, and may fail due to obstructions. In this article, we propose an auxiliary positioning architecture, whose core is to estimate the direction of arrival (DOA) of signals from landmarks, such as wireless access points, utilizing a sensor array in the vehicle. Due to space limitations, the array may be placed in an arbitrary geometry and may suffer from mutual coupling effects, and it is possible that the effect of mutual coupling between the array elements greatly reduces the independence of the elements of the array, and this effect involves the interaction of each element with its nearby objects. Mutual coupling in antenna arrays can critically degrade the performance of signal processing algorithms. In this paper, a new and accurate form of mutual impedance matrix (MIM) is used to compensate for the effect of mutual coupling in uniform linear arrays (ULA) by a new method based on solving the boundary value problem for all array elements. By using the MIM in the DOA estimation algorithms, these algorithms will be robust to the mutual coupling effect. The simulation results confirm the performance improvement of the proposed DOA estimation algorithm. The proposed architecture can obtain robust self-localization with existing vehicular ad hoc networks, and it can collaborate with other positioning systems to provide a safe driving environment. Manuscript profile

Open Access Article

25 - 2D-DOA Estimation of LFM Signal Wideband Using Low Snapshots Dechirping Algorithm in a Two-Dimensional Circular Array
Abbas Partovi Sangi Jasem Jamali Mohammad Hossein Fatehi Mohammad Mehdi Ghanbarian

Wideband linear frequency modulation (LFM) signals are widely used in systems such as radar, sonar, and mobile. 2D-DOA algorithms for LFM signals are relying on a large number of snapshots. For this reason, they are not suitable for low-power applications. In this paper More

Wideband linear frequency modulation (LFM) signals are widely used in systems such as radar, sonar, and mobile. 2D-DOA algorithms for LFM signals are relying on a large number of snapshots. For this reason, they are not suitable for low-power applications. In this paper, we present an algorithm-centered estimation method with low estimation of signal parameters via rotational invariance technique (ESPRIT) calculations based a 2D circular array using a fractal Fourier transform (FrFT). Furthermore, the utilization of a circular array facilitates the two-dimensional DOA calculation. Therefore, the procedure is that firstly, we develop the Dechirping process for LFM signals using the FrFT; secondly, we extend the ESPRIT algorithm- as used for linear arrays (ULA) - for 2D circular arrays (UCA). Finally, DOA calculations are made for a low number of snapshots with low computational volume. The simulation results of the proposed MESPRIT (i.e. modified ESPRIT) algorithm show that this algorithm outperforms compared to other algorithms like MUSIC and TSFDOA. We also have shown that the proposed method has an acceptable accuracy in low SNRs and creates less error in high SNRs. It was also demonstrated that for all algorithms, accuracy of azimuth angle is better than the elevation angle’s.   Manuscript profile

Open Access Article

26 - Design and Implementation of an Intelligent High Frequency Counter with Optimized Architecture on a Low Cost FPGA Chip XC6SLX9-2FTG256C
Sayyed Hossein Keyhomayoon Mehdi Amoon

In this paper, a 2 GHz counter is implemented on a low-cost XC6SLX9-2FTG256C field-programmable gate array (FPGA) chip from the Spartan6 family with a 500 ps resolution. Since the hardware resources contained in this chip are not sufficient to implement this design, and More

In this paper, a 2 GHz counter is implemented on a low-cost XC6SLX9-2FTG256C field-programmable gate array (FPGA) chip from the Spartan6 family with a 500 ps resolution. Since the hardware resources contained in this chip are not sufficient to implement this design, and also the inherent delays of the hardware resources inside the chip are about few nanoseconds, achieving this accuracy is very important. The architecture used in this research is based on the phase difference clocks that has been implemented after optimization. To achieve this accuracy, it is necessary to design and implement counters with high clock frequency, low jitter and low skew, without dependence on hold time and setup time. Alternative hardware resources have also been used to compensate for the lack of hardware resources required to implement routing clocks. Manuscript profile

Open Access Article

27 - Improved Angular Tracking Accuracy in Phased Array Radar
Ehsan Asgari Mojdeh Mahdavi Ruhollah Hafezifard

Monopulse is a technique which is used to detect radiation direction of waves. Radiation can be originated from active sources such as radar antennas, disturbances, etc., or passive sources, such as the reflector plates of an aircraft. Nowadays, monopulse technique has More

Monopulse is a technique which is used to detect radiation direction of waves. Radiation can be originated from active sources such as radar antennas, disturbances, etc., or passive sources, such as the reflector plates of an aircraft. Nowadays, monopulse technique has been used in many modern radar systems. In radar tracking accuracy, the criterion for evaluating the angulation function is the differential gradient. It needs to have accurate information about antenna dimensions and wavelengths. In this paper, the difference gradient value is normalized and can be completed with knowing the radiation pattern of the antenna without knowing wavelength and gate dimensions. Then, by choosing a four-horns feed, the feed is optimized based on the squint angle. The results indicate that in the whole functional range, the optimum squint angle has the least angular error. Simulations provide us with confidence in the superior performance of the radar tracker with an optimal squint angle for all target angles within the range of the pattern of monopulse radar. Manuscript profile

Open Access Article

28 - Improvement and Optimization of Homogeneous Composite in Array Antennas using Convolution Neural Network
Gohar Varamini Behnam Dorostkar Yaghouti

Antenna structure and performance, bandwidth, gain and guidance are the most important performance indicators. For this purpose, RL homogeneous transmission line is very important due to low loss, phase changes, frequency bandwidth, zero and negative order resonance, mi More

Antenna structure and performance, bandwidth, gain and guidance are the most important performance indicators. For this purpose, RL homogeneous transmission line is very important due to low loss, phase changes, frequency bandwidth, zero and negative order resonance, miniaturization and easy construction, and is very suitable in the design of broadband and array antennas. The right-left hand structure in the antennas due to the difference in the phase of the right part in the repetition of arrays and the thickness of the layer has phase delay and finally deviation of the radiation pattern. On the other hand, the blockage of the transmission line on the left causes bandwidth restriction and increasing the number of casualties in the system. In this paper, with the help of deep learning (DL), composite defects are solved and optimized arrayed antenna. The proposed antenna transmission line design in the range of 2-7 GHz, optimum resonance frequency of 4.5 GHz and convolution, dual resonance and spiral inductor neural algorithm are loaded onto the patch in four arrays. The use of convolutional neural network (CNN) in the left transmission line compensates for the right phase delay and finally enables optimal phase changes, correction of radiation pattern and continuous scanning of phase arrays. Also, by creating gaps in the microstrip patch, bandwidth limit is removed and the system losses are reduced. Secondary dimensions compared to the primary dimension are reduced to about 60% in size and miniature according to the smart modified model. The results of this improved composite showed an increase in bandwidth of 20.3 and the efficiency of the radiation pattern by more than 96%. On the other hand, small dimensions, appropriate frequency bandwidth and simple network design have been provided. Manuscript profile

Open Access Article

29 - Hardware Implementation of LMS-Based Adaptive Noise Cancellation Core with Low Resource Utilization
Omid Sharifi Tehrani Mohsen Ashorian Payman Moallem

 A hardware implementation of adaptive noise cancellation (ANC) core is proposed. Adaptive filters are widely used in different applications such as adaptive noise cancellation, prediction, equalization, inverse modeling and system identification. FIR adaptive filt More

 A hardware implementation of adaptive noise cancellation (ANC) core is proposed. Adaptive filters are widely used in different applications such as adaptive noise cancellation, prediction, equalization, inverse modeling and system identification. FIR adaptive filters are mostly used because of their low computation costs and their linear phase. Least mean squared algorithm (LMS) is used to train FIR adaptive filter weights. Advances in semiconductor technology especially in digital signal processors (DSP) and field programmable gate arrays (FPGA) with hundreds of mega hertz in speed, will allow digital designers to embed essential digital signal processing units in small chips. But designing a synthesizable core on an FPGA is not always as simple as DSP chips due to complexity and limitations of FPGAs. In this paper we design anLMS-based FIR adaptive filter for adaptive noise cancellation based on VHDL97 hardware description language (HDL) and Xilinx SPARTAN3E (XC3S500E) which utilizes low resources and is high performance and FPGA-brand independent so can be implemented on different FPGA brands (Xilinx, ALTERA, ACTEL). Simulations are done in MODELSIM and MATLAB and implementation is done with Xilinx ISE. Finally, result are compared with other papers for better judgment. Manuscript profile

Open Access Article

30 - Centerline Longitudinal Shunt Slot Excitation by Elliptic shaped single Ridge Waveguide
Mehdi Moradian Mohammad Khalaj-Amirhosseini Majid Tayarani

The Application of elliptic shaped ridge waveguide is presented for excitation of a centreline longitudinal shunt slot antenna. The proposed method is realized by adding elliptic shaped to the ridge of the single ridge waveguide. The elliptic shaped ridge is placed exac More

The Application of elliptic shaped ridge waveguide is presented for excitation of a centreline longitudinal shunt slot antenna. The proposed method is realized by adding elliptic shaped to the ridge of the single ridge waveguide. The elliptic shaped ridge is placed exactly under the longitudinal slot and the slot placed along centreline of the waveguide. It is shown that for a typical slot, the slot normalized conductance can be increased by increasing the elliptic shaped depth. The simulation results show that the proposed structure can be considered as a proper candidate for replacing the conventional longitudinal shunt slot. Manuscript profile

Open Access Article

31 - Evaluation of oligonucleotide microarray technology for the detection of foodborne bacterial pathogens
Meysam Sarshar Abbas Doosti Anis Jafari Nader Shahrokhi

Background and Objectives: Traditional methods for detection of foodborne pathogenic bacteria, which cause disease in human, are time consuming and laborious, so there is a necessity for developing a reliable and powerful method for the rapid detection of microbial path More

Background and Objectives: Traditional methods for detection of foodborne pathogenic bacteria, which cause disease in human, are time consuming and laborious, so there is a necessity for developing a reliable and powerful method for the rapid detection of microbial pathogens in food. The aim of this study, is designing primers to amplify the DNA encoding the 23S rDNA genes from a wide range of bacterial species and tested the ability and efficiency of 23S rDNA sequence to detection of foodborne pathogenic bacteria. Materials and methods: The 23S rDNA sequences of 9 foodborne pathogenic bacterial species based on the GenBank DNA sequence database were used to design oligonucleotide probes by Vector NTI software. Oligonucleotide probes for each bacterial species (total 28 probes) were designed and applied to nitrocellulose membranes. Digoxigeni (DIG) labeled 23S rDNAs were amplified by polymerase chain reaction (PCR) from bacteria using two universal primers, and were hybridized to the membrane array. Results: Escherichia coli, Listeria monocytogenes, Enterococcus faecalis, Vibrio cholerae, Shigella dysantria, Staphylococcus aurues, Salmonella enterica, Proteus vulgaris, and Bacillus cereus were used as the most common foodborne pathogens and results showed that except Shigella dysantria, the others can be detected and identified by our microarrays. The sensitivity of the microarray assay was 103 CFU of bacteria. Conclusion: This study showed that 23S rDNA has sufficient sequence diversity for species identification and is useful for monitoring the populations of pathogenic bacteria. Thus, the oligonucleotide microarray is a powerful tool for the rapid detection and identification of pathogens. Manuscript profile

Open Access Article

32 - Discuss the literary aspects of the poems of Mirzadeh Eshghi
Ahmad Ranjbar Malahat Najafi arab

Seyed Mohammad Reza Mirzadeh Eshghi (1273 - 1303 AD. N.) Constitution and vowed known contemporary poets, statesmen of his time is prolific. This article is based on a discuss of literature of love poems, his mastery of the knowledge and different ‌ lightness axis is pr More

Seyed Mohammad Reza Mirzadeh Eshghi (1273 - 1303 AD. N.) Constitution and vowed known contemporary poets, statesmen of his time is prolific. This article is based on a discuss of literature of love poems, his mastery of the knowledge and different ‌ lightness axis is proved, he identifies strengths and weaknesses. A love poem to come up with innovations and one of those impressions is the first poetry attributed to him. Even in more traditional formats, as well as he is known for making Mosammt Tarjyy Sakhth. If you want to change the meter, but the demand is not desired. Most of his imagery stereotypes and old, but sometimes in the context of dynamic imagery poem flows more or less on Ashash added appeal. Among the array of literary greatest effort to promote poetry through music, puns and repetitions, and contradictions association through observation and Tlmyhhast Alnzrha. Bob also shows that there is interest ‌ allusions from ancient Iran, ancient Iranian culture and history does not recognize. Manuscript profile

Open Access Article

33 - بررسی وجوه زیبایی شناسی نوشتار زویا پیرزاد در سه مجموعه داستان
شهلا حائری سمانه رودبار محمدی

Manuscript profile

Open Access Article

34 - Preparation of ZnO/CeO2 Nanocomposite Arrays within Monolithic Cordierite Honeycomb
ایمان صفائی

In this study, ordered ZnO/CeO2 nanocomposite arrays were synthesized within the monolithic cordierite honeycomb using a simple, green and cost effective hydrothermal method. Primary ZnO seeds with (0 0 2) texture were grown within honeycomb’s channels by dipping More

In this study, ordered ZnO/CeO2 nanocomposite arrays were synthesized within the monolithic cordierite honeycomb using a simple, green and cost effective hydrothermal method. Primary ZnO seeds with (0 0 2) texture were grown within honeycomb’s channels by dipping technique and subsequent heating of the substrates at 350˚C. The average diameter of ZnO seed particles was estimated to be 60 nm from SEM micrographs by the use of Digimizer software. Highly aligned, compact and homogenous ZnO nanorod arrays with the diameter of 200 nm were formed in monolithic cordierite honeycomb by a novel two-step hydrothermal method at 80 oC. ZnO nanorod arrays were used as a core for the preparation of ceria coating. A ceria coating was deposited on ZnO nanorods in the second step of hydrothermal synthesis. Formation of ZnO and ceria phases was also confirmed by X-ray diffraction results. Manuscript profile

Open Access Article

35 - Studying the Communicative and Media function of the Types of Images and LiteraryArrays in the Quatrains of Jalil Safar Beiki
Akbar Sha'bani Hadi Pir Gazi

Abstract         One of the transformations which has taken place in contemporary quatrain, is the focus on the media and communicative aspect of this short literary mold. Since the modern composers of the quatrain don't have much opp More

Abstract         One of the transformations which has taken place in contemporary quatrain, is the focus on the media and communicative aspect of this short literary mold. Since the modern composers of the quatrain don't have much opportunity to deal with the expounding of different problems, they have tried to communicate with their readers through the media capacity of the imagery and literary arrays and transfer the micro and macro implications to them.  To this credit, in the present article, by documentation of library sources and through the descriptive – analytic approach, the communicative functions of the figures of speech in the quatrains of Jalil Safar Beiki, one of the most distinguished quatrains composed, will be investigated. He has been able to transfer the love, religious theme and personal conditions and philosophic , political, social, moral and patriotism to his readers by using the types of imagery, simile, punt arrays, harmony, allusion, repetition, and exaggeration to his readers. Therefore, figures of speech have great impact in transferring the process of the message to the target group in Safar Beiki quatrains. Manuscript profile

Open Access Article

36 - A Narrow Research in the Spiritual Rhetoric Arrays in Mirza Mohsen Ta'sir Tabrizi Diwan
Raziyeh Aghazadeh

Abstract         From the aesthetic point of view, the rhetorics is a science by which the beauty of the word is revealed and it is a collection of the crafts which more or less converts the ordinary words to literary ones. One of the More

Abstract         From the aesthetic point of view, the rhetorics is a science by which the beauty of the word is revealed and it is a collection of the crafts which more or less converts the ordinary words to literary ones. One of the basic elements of the poetry, especially in the Indian Style, in addition to narrow types of imagery, is the arrays used in the poetry of this period of time. Mirza Mohsen Ta'sir Tabrizi is of the poets who followed Saeb Tabrizi's school. He has taken great advantage by using eloquent language and innovative arrays which included verbal and spiritual skills in expressing his thoughts and tenets. In this research which has been done in descriptive-analytic method, Ta'sir Tabrizi's Diwas has been investigated from spiritual rhetorics and its significant points have been distinguished. Mystics' agnosticism, the manner of equity, paradox, the order of numbers, the true way of speech, comparison, using parallel words. Among the above-mentioned items: the abstraction, manner of equity, the true way of speech and allusion are of higher frequency. Manuscript profile

List of Articles آرایه

Sanad

Links

Related Centers

Technical Support

Official pages