scholarly journals EVALUATION STUDY ON WOODEN PILLAR MOSQUES BUILT IN ANATOLIA IN THE 13TH CENTURY

2021 ◽  
Vol 11 (1) ◽  
pp. 131-161
Author(s):  
Filiz KARAKUŞ

In this article, mosques that are carried on wooden poles, which have a very important place among Anatolian Seljuk and Principalities (Beyliks) Period mosques and covered with flat wooden roofs, are discussed. With the continuation of the wooden pillar mosque tradition in Central Asia, very important examples of this building type, which were brought to Anatolia by the Turks in the Anatolian Seljuk State Period, were revealed in the 13th century. In this study, Beyşehir Eşrefoğlu Mosque, Afyon Ulu Mosque, Ankara Arslanhane (Ahi Şerafettin Mosque) and Sivrihisar Ulu Mosque, which are the most magnificent examples of this building type, were investigated. After the archive and literature researches about these buildings were done, a catalog study of the buildings was made. Within the scope of this study, the formal features of the buildings such as plan, facade, construction technique, plan type, number of entrances, the presence of the last congregation and the presence of a gathered floor, the environmental relation, the spatial characteristics such as the carrier element and the architectural elements were examined. The aim of the article is to make a general inference on the wooden pillar mosques built in Anatolia in the 13th century in line with the data obtained from the studies and to determine the common aspects of wooden pillar mosques built in four different parts of Anatolia. In the light of the information obtained as a result of the catalog studies and archive scans, it has been observed that the structures have similar characteristics especially in terms of the materials and construction techniques used, but some of their features differ and take shape in line with the construction traditions of the places where they are located. Konya Sahipata Mosque, which was built in the 13th century, was excluded from the scope of the study, as its general characteristics were completely changed after the fire.

2021 ◽  
Vol 11 (1) ◽  
pp. 131-161
Author(s):  
Filiz KARAKUŞ

In this article, mosques that are carried on wooden poles, which have a very important place among Anatolian Seljuk and Principalities (Beyliks) Period mosques and covered with flat wooden roofs, are discussed. With the continuation of the wooden pillar mosque tradition in Central Asia, very important examples of this building type, which were brought to Anatolia by the Turks in the Anatolian Seljuk State Period, were revealed in the 13th century. In this study, Beyşehir Eşrefoğlu Mosque, Afyon Ulu Mosque, Ankara Arslanhane (Ahi Şerafettin Mosque) and Sivrihisar Ulu Mosque, which are the most magnificent examples of this building type, were investigated. After the archive and literature researches about these buildings were done, a catalog study of the buildings was made. Within the scope of this study, the formal features of the buildings such as plan, facade, construction technique, plan type, number of entrances, the presence of the last congregation and the presence of a gathered floor, the environmental relation, the spatial characteristics such as the carrier element and the architectural elements were examined. The aim of the article is to make a general inference on the wooden pillar mosques built in Anatolia in the 13th century in line with the data obtained from the studies and to determine the common aspects of wooden pillar mosques built in four different parts of Anatolia. In the light of the information obtained as a result of the catalog studies and archive scans, it has been observed that the structures have similar characteristics especially in terms of the materials and construction techniques used, but some of their features differ and take shape in line with the construction traditions of the places where they are located. Konya Sahipata Mosque, which was built in the 13th century, was excluded from the scope of the study, as its general characteristics were completely changed after the fire.


2021 ◽  
Vol 18 (1) ◽  
pp. 108-130
Author(s):  
Emine Yıldız Kuyrukçu ◽  
Hatice Ülkü Ünal

Postmodern architectural products that can be described as kitsch have become rapidly consumed objects because they have appealed to the whole society. As a demand stimulating, easily comprehensible, and rapidly consumable product, kitsch has gained an important place in postmodern culture and architecture. These features of kitsch have easily made it a paradoxical part of consumption culture. After the Neoclassical boom in the 18th century, architectural movements such as Eclecticism, Orientalism, and Historicism became widespread in the 19th century. Towards the end of the 20th century, these tendencies came to the fore again within the Postmodern paradigm, and new kitsch architectural structures have begun to be produced in these undertakings in accordance with the spirit of the period. Eclecticism which has become prominent again in postmodern architecture has been referred to as neo-eclecticism or eclectic populism and has been defined as a style that ‘complexity, uncertainty and contradictions’ are expressed, ‘references from history and symbolic elements are used. Together with various historical forms in the postmodern period, orientalist images have been also used. Images consisting of stylized views of the Western culture on the Orient and that are not based on an authentic eastern depiction have been used in the production of orientalist architectural form. In recent years, eclectic, kitsch, orientalist, neoclassical forms that are independent of context and time have been frequently encountered in architectural applications in also Turkey. On one hand, elements from Turkish culture have been used and on the other hand, architectural elements from foreign cultures have been preferred. It is seen that there have been contradictions between form and meaning in educational structures built in Turkey during the period that the paradigms of the Postmodern era have been dominant. In this study, it is aimed to read and analyze the concepts of kitsch, eclecticism, neoclassicism, orientalism in the postmodern paradigm on recent university buildings and campus portals. In line with this purpose, an extensive literature research was conducted within the scope of the study; in the case study, recent university buildings and portals were analyzed in terms of postmodernism, the historical periods and architectural elements they derived were determined.


Author(s):  
C. Azil ◽  
B. Djebri ◽  
L. Rovero

<p><strong>Abstract.</strong> In the Souf region of Algeria, all vernacular buildings are covered by domes, built with an unusual building material, the desert rose stone, peculiar to the region. These domes represent an element of identity of the region and describe a unique urban landscape that deserves to be protected and enhanced. Unfortunately, these architectural elements have suffered damage that devalues the urban landscape compromising their conservation. In particular, many domes have severe cracks and have collapsed in large areas.</p><p>Diagnostic investigations were carried out with the aim to understand the causes of the damages and to carry out guidelines for consolidation.</p><p>In particular, in situ surveys have allowed to analyze the employed construction technique, the collection of samples for the chemical-physical and mechanical investigations of the materials and a manual geometric survey of a typical building module. In addition, a Finite Element Model of a building module was realized with the aim of investigating structural behavior.</p><p>Considerations were made on the influence of the dome shape on structural behaviour and on the fractures pattern detected in many domes.</p>


Epohi ◽  
2021 ◽  
Vol 29 (2) ◽  
Author(s):  
Yurii Dolzhenko ◽  
◽  
Anna Tarasova

The work is devoted to the 10th–13th-century paleodemographic data regarding the city of Chernigov and its districts, and to their introduction into the scientific domain. The study is based on the data on the anthropological series of Chernigov in the 10th–13th centuries, divided into three samples according to the topographic principle. This series is characterized by a low average life expectancy in comparison to other southern Old Rus cities. The feature of the necropolises of Chernigov indicating the predominance of female burials over male ones, revealed in the 1980s, has been confirmed at a new level. A study of the demographic parameters of the Chernigov population groups in the 10th–13th centuries, united on a territorial basis, has shown differences in their structure, probably reflecting the peculiarities of the life quality, social status, and professional specialization of the population of different parts of the city. Further research into the remains of the city’s population with methods of paleopathology, osteometry, osteoscopy, radiology, etc., as well as the analysis of aspects of the political history of the region, would help shed light on the possible causes of the identified features of the demographic structure of the population in the pre-Mongolian period.


2021 ◽  
Author(s):  
Suciu Felicia ◽  
Roșca Adrian Cosmin ◽  
Lupu Carmen ◽  
Popescu Antoanela ◽  
Badea Victoria

"The history of medicinal plants is associated with the evolution of civilization. In all regions of the world, the history of nations shows that these plants have always occupied an important place in medicine, in cosmetic products, and culinary preparations. The paper aims to determine the total polyphenols in different parts of the species Lysimachia nummularia L. In our study, we focused on the extraction of polyphenolic compounds in different solvents. The solvents used in the extraction were: 40% ethanol, concentrated methanol, in water. The total polyphenol content was determined by spectrophotometric methods, a method from the European Pharmacopoeia 10.0, with minor modifications. The total polyphenol content of different extracts varied depending on the extraction process. Different parts of the plant and different solvents were used in the determinations carried out to establish the optimal extraction method for the organs of Lysimachia nummularia L."


1991 ◽  
Vol 28 (04) ◽  
pp. 213-222
Author(s):  
K. E. Harrington ◽  
R. Hansen ◽  
A. L. Marshall ◽  
M. Hubert

Increased structural weight has always been a major disadvantage and probably the main objection to using concrete hulls. Postwar development in materials and construction techniques has led to claims that it is now possible to achieve structural weights equalling or closely approaching those of equivalent steel hulls. After reviewing the postwar material and construction technique developments, this paper compares the structural weight of existing and equivalent steel and concrete barge and pontoon hull designs. It is found that increased structural weight is a dual factor advantageous in some applications but disadvantageous in others, and that despite the postwar developments concrete barges and pontoons are still heavier than equivalent steel hulls.


2007 ◽  
Vol 97 (4) ◽  
pp. 379-386 ◽  
Author(s):  
H.C. Zhang ◽  
G.X. Qiao

AbstractThe tribe Fordini is a fascinating group because of its complicated life history, primary host specificity and gall-forming characteristic. Different species produce galls with different morphology on different parts of the host plants. The EF-1α-based, COI-based and combined sequences-based phylogenetic trees with three algorithms MP, ML and Bayes all strongly suggest that Fordini is a monophyletic group with two clades corresponding to two subtribes, Fordina and Melaphidina, each also monophyletic. Some important morphological characters and primary host plants of aphids were mapped onto the phylogenetic tree to analyse the division of subtribes and to uncover at which level the aphids correspond to their primary hosts, Pistacia and Rhus. Results suggest that the division of subtribes in Fordini is closely related to host selection of aphids. The evolution of gall morphology and the probable driving force behind it in this tribe were also discussed. The Fordini aphids seem to have evolved towards a better ability to manipulate their host plant, induce strong sinks and gain high reproductive success. Galls in this tribe evolved mainly along two directions to attain this goal: (i) by enlarging the gall from small bag to spherical, even big cauliflower-like, and changing the galls' location or forming two galls in their life cycle (Fordina); (ii) by moving the gall position from midrib, petiole of the leaflet, and eventually to the common petiole of the compound leaf (Melaphidina).


1946 ◽  
Vol 24c (2) ◽  
pp. 26-38 ◽  
Author(s):  
Margaret Newton ◽  
T. Johnson

During the period 1919 to 1944, 65 physiologic races were identified from a total of 4543 isolates derived from uredial collections of Puccinia graminis Pers. var. Tritici Erikss. & Henn. Forty-nine races were obtained in the Prairie Provinces from a study of 3475 isolates; 40 in Eastern Canada from 1013 isolates, and 12 in British Columbia from 55 isolates. During this period, the predominant races have shown notable fluctuations in their prevalence. Races 36, 17, and 21 were the most common races until shortly after 1930 and were largely responsible for the severe rust losses suffered by Marquis and other common wheats during the decade preceding that year. Races 34 and 49 were collected frequently from 1927 to about 1935. All of these races diminished greatly in their prevalence between 1930 and 1936, whereas race 56, which was first collected in Canada in 1931, has become the predominant race since 1934. It was this race that played a major part in the stem rust epiphytotic of 1935. Another recent change in the racial population was a recrudescence in 1940 of race17, which for several previous years had been of minor importance. In 1941 this race challenged the pre-eminent position of race 56 but receded again in succeeding years to minor significance.The distribution of races is somewhat similar but not identical in different parts of Canada. Races 36 and 21 have been relatively more common in the Prairie Provinces than in Eastern Canada, while the contrary is true of race 38. Only about a dozen of the 65 races collected in Canada have thus far assumed much economic importance, a few others may be considered of minor significance, but at least two-thirds of the races have been found only occasionally and have, for reasons not fully understood, failed to gain even a limited distribution.A comparison of the number of physiologic races collected in Eastern Canada and the Prairie Provinces, respectively, has indicated a somewhat greater variety of physiologic races in the former region, a condition that may perhaps be explained by the presence of the common barberry in many localities in Eastern Canada.


2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Shahla Afsharpaiman ◽  
Musa Zare ◽  
Masoud Yasemi ◽  
Tannaz Jamialahmadi ◽  
Amirhossein Sahebkar

Background. The keratorefractive surgeries (KRS) are one of the most common ocular surgeries. One of the dangerous complications of these surgeries is infectious keratitis (IK), which is the second cause of blindness after cataract surgery. The purpose of this study was to estimate the prevalence of IK after KRS in different parts of the world. Methods. In order to obtain relevant studies, all national and international databases including IranMedex, SID, Magiran, IranDoc, Medlib, ScienceDirect, PubMed, Scopus, Cochrane, Embase, Web of Science, and Google Scholar were searched using standard keywords. Results. IK prevalence after KRS was 0.000496% (0.000145% for the left eye and 0.000149% for the right eye). IK prevalence after KRS in the United States, Europe, and Asia was 0.000667%, 0.000473%, and 0.000045%, respectively, in all of which the common microorganisms were Staphylococci. Meta-regression showed no significant association between IK after KRS and either sample size or publication year of the studies. IK prevalence after KRS in the right eye was more than that in the left one. Also, the probability of IK incidence after LASIK surgery was more than PRK and LASEK. In the evaluation of continents, IK after KRS in the United States was more frequent compared with Europe and Asia. Conclusions. This study provided data as to the overall prevalence of IK following KRS and its variations according to the types of eye, surgery, pathogenic microorganism, and geographical location.


2013 ◽  
Vol 19 (4) ◽  
pp. 591-607 ◽  
Author(s):  
Moatassem Abdallah ◽  
Mohamed Marzouk

Tunnel construction is one of the important infrastructure projects, which is vital for enhancing the transportation networks, especially in congested cities. Tunnel projects are characterized by long durations, large budgets, complexities, repetitive construction tasks, risks, and uncertainties. Several construction techniques have been developed in the tunnel construction industry to improve the constructability of tunnels and decrease the impact on surrounding structures. This paper presents a framework for planning tunnel construction using computer simulation. The proposed tool aids contractors in estimating the required time and cost for construction. Five tunnel construction techniques have been considered in the development of this tool with different ground supporting techniques. The proposed framework consists of three modules: (1) tunnel analyzer module, (2) simulation module, and (3) decision support module, and is capable of selecting the best construction technique using fuzzy group decision-making method based on time, cost and other selection criteria that could be defined during the decision-making phase. This decision method ranks alternatives based on a group of experts and a predefined set of criteria. Numerical examples are introduced to illustrate the capabilities of the proposed framework.


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