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مرکز اطلاعات علمی SID1
مرکز اطلاعات علمی SID
اسکوپوس
مرکز اطلاعات علمی SID
ریسرچگیت
strs
Journal: 

NEGAREH

Issue Info: 
  • Year: 

    2011
  • Volume: 

    6
  • Issue: 

    18
  • Pages: 

    35-47
Measures: 
  • Citations: 

    0
  • Views: 

    5458
  • Downloads: 

    3724
Abstract: 

Qajar period can be seen as innovations and new developments in art and architecture. Among these developments, the growing relationship and exchanges with the West, Seeking new knowledge and new science to Iran, Special effects seen on the Art and Architecture and especially buildings decoration are in the Qajar period.Among the most important developments and New knowledge can be cited invention and log in photography, Log in and application of correspondence postal stamps and New European postcards.In this article, research methods is used description- Analysis and Studies Library in Architecture of The MASJID-MADRESEH and also Field Studies To participate in the building and Direct observation. And the impact of these developments Review and assessment has been on the decorations Mashid-MADRESEH of Qajar.Based on the reviews and studies, much of the decorating and tiling designs Mashid-Madrseh of Qajar is modeled Photos, stamps and postcards of that period.And images of monuments, Landscapes and architecture, Birds, grapes, crown, winged angels and humans, European men' s clothing, The flower vases and bowls and plates With various flowers, especially roses and lily In designs and decorative tiling And sculpted monuments seen.

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Author(s): 

MOVAHED ZIA

Issue Info: 
  • Year: 

    2010
  • Volume: 

    7
  • Issue: 

    2
  • Pages: 

    5-14
Measures: 
  • Citations: 

    0
  • Views: 

    171
  • Downloads: 

    20
Abstract: 

In Islamic traditional textbooks modal operators sometimes come before propositions, sometimes before the predicates and sometimes at the end of propositions. This makes the interpretation of modality in each case as de re or de dicto difficult. Given Ibn SVnÏ's discussion of and sensitivity to this distinction, in this paper by examining the position of modality in the contradictories and converses of modal categorical propositions as well as their positions in modal syllogisms I will try to find a reasonable answer to this important issue.

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Issue Info: 
  • Year: 

    2012
  • Volume: 

    1
  • Issue: 

    2
  • Pages: 

    1-16
Measures: 
  • Citations: 

    1
  • Views: 

    5109
  • Downloads: 

    2384
Abstract: 

Magnificent and beauty contributed to the architecture, especially during the Islamic era, is due to the decoration of the buildings. Chahar Bagh masjed-MADRESEH (mosque-school) in Isfahan is one of masterpieces of Safavid period and also masjed Seyyed is Isfahan is one of the buildings built in the early Qajar period, especially in terms of decoration and tiling patterns.Review, study and comparison of tiling patterns of the two buildings Can be recognized the cultural identity of these two buildings. The present research is based on the relative lack of scientific study of the historical architecture of the schools buildings in our country especially in the field of decorating and using analysis-description method and library studies in the field of architectural decorations of the two buildings and the field studies, tries to assist and compares the tiling patterns of the two distinctive buildings from Qajar and Safavid eras.Research findings show that the geometric and plant motifs on the tiles, decorating most of Chahar Bagh School, is abstract which benefits from a simple and fluent solidity, of which the decorative handwriting is dominantly Kufic and thulth handwritings. In masjed-MADRESEH Seyed, the decorative images such as fruits, grapes, flowers, vases, bowls, landscape and plates have been used in a high multiplicity and also applied, under the impact of decorative arts, in the West, as some realistic, abstract and non-duplication designs. Nastaliq hadwritiing is the most dominant in the inscriptions.

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گارگاه ها آموزشی
Issue Info: 
  • Year: 

    2013
  • Volume: 

    0
  • Issue: 

    44
Measures: 
  • Views: 

    1365
  • Downloads: 

    0
Abstract: 

IN THIS PAPER, WE STUDY A GRAPH G WHICH SATISFIES (P1) CONDITION, (FORMULA) FOR ANY XYÏ E (G).WE SHOW THAT G IS Z3-CONNECTED OR CONTAINS K-4 AS A SUBGRAPH IF SATISFIES (P 1) CONDITION. FURTHER WE SHOW THAT IF VI IS A SET OF VERTICS WITH DEGREE I AND V2 IS NOT DEPENDENT SET OR G [V 2 ÈV 3] CONTAINS AN ODD CYCLE, THEN G IS NOT Z3-CONNECTED.

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Author(s): 

DAGHIGH H. | BAHRAMIAN M.

Issue Info: 
  • Year: 

    2009
  • Volume: 

    4
  • Issue: 

    2
  • Pages: 

    55-64
Measures: 
  • Citations: 

    0
  • Views: 

    18419
  • Downloads: 

    14688
Abstract: 

Let E be an elliptic curve over the finite field Fq, P a point in E(Fq) of order n, and Q a point in the group generated by P. The discrete logarithm problem on E is to find the number k such that Q = kP. In this paper we reduce the discrete logarithm problem on E[n] to the discrete logarithm on the group F*q , the multiplicative group of nonzero elements of Fq, in the case where n ï q - 1, using generalized jacobian of E.

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Author(s): 

REZAI VALI

Issue Info: 
  • Year: 

    2016
  • Volume: 

    8
  • Issue: 

    1 (14)
  • Pages: 

    1-16
Measures: 
  • Citations: 

    0
  • Views: 

    3108
  • Downloads: 

    375
Abstract: 

Traditional Grammarians have recognized three categories in Persian including infinitive, verbal noun and HAcsele Masdar (HM).There have been much debates on the nature of these categories especially concerning their inclusion in the category of verbs or nouns. In this paper these categories are studied within the framework of the typological prototype. According to Croft (2003) the semantic class of words alone cannot distinguish parts of speech cross-linguistically. Instead, another criterion named propositional act function is required. The semantic class includes objects, properties and actions. The propositional act functions are reference, predication and modification. It will be demonstrated that the category of infinitive and verbal noun are both a combination of action and reference. HM is not a subclass of infinitive at all, because it lacks the semantic feature of action. What has been called HM in traditional grammar is indeed the result of a derivational process with the aid of the suffix aÏi creating nouns from adjective and adjectves from nouns. The typological prototype approach provides a universal conceptual space for parts of speech that works cross-linguistically. However, the non- prototypical combinations of semantic class and propositional act functions often embrace more than one member in individual languages. In such cases we can distinguish different categories using formal and functional criteria.

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strs
Writer: 

Issue Info: 
  • Year: 

    2009
  • Volume: 

    0
  • Issue: 

    20
Measures: 
  • Views: 

    2310
  • Downloads: 

    0
Keywords: 
Abstract: 

LET G BE A GROUP AND LET S BE A SUBSET OF G SUCH THAT 1GÏS AND S=S−1. LET G=CAY(G, S) BE A CAYLEY GRAPH ON G RELATIVE TO S. THEN G IS SAID TO BE NORMAL EDGE-TRANSITIVE, IF NAUT(G)(G) ACTS TRANSITIVELY ON EDGES. IN THIS PAPER WE DETERMINE ALL NORMAL EDGE-TRANSITIVE CAYLEY GRAPHS ON A QUATERNION GROUP Q2N OF VALENCY 4. IN ADDITION WE GIVE NORMAL EDGE-TRANSITIVE CAYLEY GRAPHS ON A QUATERNION GROUP Q2N OF SOME OTHER VALENCIES.

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Author(s): 

AMANI MOHAMMAD | SAFAVIAN AREZU

Journal: 

EMERGENCY MANAGEMENT

Issue Info: 
  • Year: 

    2016
  • Volume: 

    5
  • Issue: 

    10
  • Pages: 

    35-40
Measures: 
  • Citations: 

    0
  • Views: 

    118
  • Downloads: 

    33
Abstract: 

Natural hazard risk assessment helps decision makers for planning and prioritizing disaster management strategies. This paper focuses on the prediction of different scenarios and assessing the risk of soil liquefaction.The vulnerability of the elements due to soil liquefaction was determined. The Gorgan state (1600 km2) in Golestan Province of Iran was considered as a case study for assessing the vulnerability due to this phenomenon. Soil deposits map, ground water depth, and the earthquake acceleration map (based on the occurred historical earthquake points) have been prepared in this study. An empirical liquefaction model as a function of the three studied variables was used to model the liquefaction in four hazard classes using the ArcGIS software. Possible scenarios were determined considering the potential of superposing the peak rate of the ground acceleration and water depth. The area of liquefied zones was estimated using the geographical information systems (GIS). In this study, the collection of data and digital maps using ArcGIS software base as well as the three-parameter model SWM, soil liquefaction hazard zonation map to the area south of Gorgan in Golestan province in Slvlhay 30Ï30 were prepared. According to the results of without risk to very high-risk potential that the area most studied in class is without risk. Aq Qala city limits because of the proximity to the center -discharge is too high earthquake hazard class, and because Gorganrood the scope of this town passes increases the probability of liquefaction.

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Author(s): 

MONTAZERI MAJID

Issue Info: 
  • Year: 

    2014
  • Volume: 

    12
  • Issue: 

    36
  • Pages: 

    209-228
Measures: 
  • Citations: 

    0
  • Views: 

    88
  • Downloads: 

    33
Abstract: 

This paper investigates spatial variability of temperature trends over Iran in the last 48 years. In order to evaluate the trends, time series of minimum, maximum, and mean temperature for all synoptic and climatologic stations throughout Iran from 1961 up to 2008 were collected. With the help of the prepared data base, the isothermal maps with spatial resolution of 15Ï15 Km were calculated and plotted by Kriging interpolation method. So that each map with 7196 pixels covered Iran’s borders. Therefore, 3 (three) arrays with dimension 7196*48 were provided.For evaluating the temperature trend, parametric methods of Linear Regression and Mann-Kendall test have been used. Using such tests on each of the arrays showed that Iran’s temperature is increasing. Such increase has happened more in flat and low height areas. Among these, minimum temperature is more important and in 60% of the country shows an increasing trend, while the increasing trend of maximum temperature covers only 27% of the country. On the other hand, the trend intensity is not the same in all the zones, and for minimum trend, its intensity in Kerman province at the west of Loot desert and in Shahdad area, central parts of Semnan province, east of Khuzestan, south of Ilam province and west of Kermanshah province is more and these areas are more endangered with environmental damages resulting from increasing minimum temperature, while the provinces of North Khorasan, Hamedan, Chaharmahal Bakhtiyari are endangered with increasing trend of temperature.

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Author(s): 

KHOSRAVI H.

Issue Info: 
  • Year: 

    2012
  • Volume: 

    1
  • Issue: 

    1
  • Pages: 

    47-51
Measures: 
  • Citations: 

    0
  • Views: 

    58
  • Downloads: 

    20
Abstract: 

In this paper we study right n-Engel group elements. By modifying a group constructed by Newman and Nickel, we construct, for each integern n ³ 5, a 2-generator group G=áa, bñ with the property that b is a right n-Engel element but where [bk,n a] is of infinite order when k Ï {0, 1}.

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