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Variations of Air Temperature and Precipitation in Asian and European Parts of Istanbul
Zafer Aslan, Fadime Giden, Hatice Koyuncu, Ayten Kalafat
Dogal Afetler ve Cevre Dergisi , 2016, DOI: 10.21324/dacd.75393
Abstract: Frequency of showers and floods show an increasing trend in recent year in the world. Role of climate changing on frequency of natural hazardous depends on topographic structure, vegetation cover, land use- land surface classification and urbanization. This paper covers analyses of spatial and temporal variations of air temperature and precipitation at four selected stations (Bah?ek?y, Florya, G?ztepe and ?ile) in European and Asian parts of Istanbul. Mean air temperature variations show an increasing trend between 3% and 5% at G?ztepe and Florya. The extreme increasing ratio of monthly maximum air temperature values (6%) is observed at ?ile. Increasing trends of monthly total rainfall rates at Bah?ek?y and ?ile are 10% and 17% respectively. Role of urbanizations on temporal and spatial variations of daily, monthly averages and extremes of variables have been statistically evaluated in this paper.
Broadbent’s Cognitive Approach and Its Effect on Motor Performance in Sports  [PDF]
Mehmet Koyuncu
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.25073
Abstract: This study aimed to test Broadbent’s attentional filtering theory in the perceptual motor task of dart throwing. Dart board size was manipulated in order to reduce the amount of information to be filtered in the participants’ field of view. Sample consisted of 122 college students (63 males and 59 females) ranging in age from 17 to 36. Participants’ task was to throw 18 darts at the center of targets 45 cm, 30 cm and 15 cm in diameter. Performance was measured as radial distance from the bulls-eye of each dart. One way ANOVA, Repeated Measure of ANOVA was used in the analysis of the obtained data. The results of our study showed that dart throwing performance gave better results in cases where target’s field of view was reduced, compared to the ones in which target’s field of view was increased. Consistent with Broadbent’s central claim, results showed that fewer stimuli in the field of view required less processing, thus, better performance. Also, those subjects that were exercising regularly did better than the ones that were not exercising. This study provides evidence that reducing target’s field of view in dart throwing increases the chances to obtain better results.
An Application of Kalman Filtering and Artificial Neural Network with K-NN Position Detection Technique  [PDF]
Hakan Koyuncu, Baki Koyuncu
Wireless Sensor Network (WSN) , 2017, DOI: 10.4236/wsn.2017.98013
Abstract: RFID technology is one of the important technologies to determine the object locations. Distances are calculated with respect to calibration curves of RSSI amplitudes. The aim of this study is to determine the 2D position of mobile objects in the indoor environment. The importance of the work is to show that localization by using Artificial Neural Network plus Kalman Filtering is more accurate than using classical KNN method. An indoor wireless sensing network is established with strategically stationed RFID transmitter nodes and a mobile object with a RFID receiver node. A fingerprint map is generated and K-Nearest Neighbourhood algorithm (KNN) is deployed to calculate the object locations. Fingerprint coordinates and RSS values received at these coordinates are deployed to set up an Artificial Neural Network (ANN). This network is used to determine the unknown object locations by using RSS values received at these locations. The accuracy of object localization is found to be better with ANN technique than KNN technique. Object coordinates, determined with ANN technique, are subjected to Kalman filtering. The results show that localization accuracies are improved and localization error distances are reduced by 46% with the deployment of ANN + Kalman Filtering.
Reproductive Performance of Kivircik Ewes on Accelerated Lambing Management
Mehmet Koyuncu
Pakistan Journal of Biological Sciences , 2005,
Abstract: The aim of the study was to determine the effects of accelerated lambing scheme of three lambing in two years. Ewes were bred at 8 month intervals; July (J), March (M) and November (N). Lambing rates for J, M and N were found 89.6, 90.5 and 92.2%, respectively. Litter size at birth in J (1.56) and M (1.54) differed (p<0.01) with respect to N (1.31). Lamb survival at weaning in J (94.7%) was higher (p<0.05) than M (90.4%) and N (91.3%). Weaning rate was affected (p<0.01) by breeding date; N-ewes had fever lambs weaned than J and M-ewes. In general, both prolificacy and weaning rate were consistently higher (p<0.05) as ewe`s age increased. This accelerated lambing scheme generated a ewe productivity, on an annual basis, of 1.33 0.07 lambing, a litter size of 1.77 0.22 at birth and 1.66 0.21 at weaning. Considering the July values as those representing an annual breeding, the accelerated lambing scheme increased lamb production 15% at birth and 19% at weaning. The results indicated that Kivircik ewes have a good potential for production systems requiring improved prolificacy or accelerated lambing management.
ON THE NUMBER OF EIGHTEEN IN HUSN U ASK HüSN ü A K’TA ON SEK Z SAYISI üZER NE
Zeynep KOYUNCU
Turkish Studies , 2009,
Abstract: Eighteen is regarded as highly important and sacred by Mevlevism because Hayy, one of Allah’s 99 names, constitutes eighteen with the method of ebced; consonants of the phrase “bismillahirrahmanirrahim” are eighteen and Mevlana composed the first eighteen couplets of Mesnevi by himself.As a Mevlevi poet Sheikh Galip considered eighteen in his written work too. This article aims to explain number of eighteen and its multiples in the poems of Sheikh Galip’s “Hüsn ü A k”. On sekiz say s , Allah' n 99 isminden biri olan Hayy’ n ebced hesab ile on sekize kar l k gelmesi, besmelenin sessiz harflerinin adedinin on sekiz olu u ve Mevlana'n n Mesnev adl eserinin ilk on sekiz beytini bizzat kendisinin yazmas sebebiyle Mevlev ler i in nemli ve kutsal say l r. eyh Galip de Mevlev bir air olarak Hüsn ü A k adl eserinde on sekiz say s na nem vermi tir. Bu makale, eyh Galip'in Hüsn ü A k’ nda ge en on sekiz ve katlar na dair manzumeleri tan tmay ama lamaktad r.
TANNERS IN OTTOMAN STATE OSMANLI DEVLET NDE DEBBA LAR
Miyase KOYUNCU
Turkish Studies , 2009,
Abstract: In Ottoman Empire the artisans are representatives of the productor section of the cities. From raw materials to the product at the hand of consumers all process of production have been uder the control and inspection of both the state and the guilds. In this study the activities and problems of tanners tried to be studied as an example of Ottoman artisans. Osmanl Devleti’nde ehirli üretici kesimi esnaf temsil eder. Ham maddeden tüketici eline ula an nihai ürüne kadar tüm üretim a amalar esnaf loncalar ve devlet taraf ndan denetim ve control alt nda tutulmaya al lmaktad r. Bu al mada Osmanl esnaf na bir rnek olarak stanbul’daki debba lar n faaliyetleri ve sorunlar üzerinde durulmaktad r.
Internal Jugular Vein Performance After Functional Neck Dissection and the Role of Seprafilm
Mehmet KOYUNCU
Trakya Universitesi Tip Fakultesi Dergisi , 2009,
Abstract: Objectives: This study was designed to investigate the postoperative internal jugular vein function after functional neck dissection and the role of Seprafilm on postoperative healing.Patients and Methods: Twenty-three patients undergoing functional neck dissection were randomly assigned to two groups. Group 1 consisted of 13 patients whose internal jugular veins were wrapped with Seprafilm. Group 2 consisted of 10 patients as the control group. Internal jugular vein function was assessed preoperatively and at three months after the operation.Results: The results of the Doppler examinations revealed no significant difference in postoperative internal jugular vein function between the two groups.Conclusion: Postoperative healing process does not have a significant role in postoperative internal jugular vein narrowing after functional neck dissection.
Integrally Indecomposable Polytopes
Fatih Koyuncu
Sel?uk Journal of Applied Mathematics , 2006,
Abstract: Gao gave a criterion for the integral indecomposability, with respect to the Minkowski sum, of polytopes lying inside a pyramid with an integrally indecomposable base. Here, we weakened this criterion to the polytopes lying inside the convex hull of two polytopes, one of which is integrally indecomposable, being in two parallel nonintersecting hyperplanes.
Irreducible Polynomials by the Polytope Method over Integral Domains
Fatih Koyuncu
Sel?uk Journal of Applied Mathematics , 2005,
Abstract: Ostrowski realized that there is a relation between the factorization of a multivariate polynomial over any field and the integral decomposition of the Newton polytope of this polynomial. Here, we extended this result to the multivariate polynomials over any integral domain. Moreover, we observed that this result is also valid for some special kind of multivariate polynomials over any commutative ring.
Levi-Stratuss Yap salc l
Ahmet KOYUNCU
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2011,
Abstract: In this study we discuss the structuralist approach popularity of which grew in a diverse range of fields, including linguistics,sociology, psychology and ethnography in social sciences starting from the 1950s and one of the most fundamental members ofsructuralist movement, Levi-Strauss and the reasons his thought is based on this concept. In this context the term of structuralistapproach, the origin of structuralism, the difficulty of its definition as a movement, the concept of structure whose origins can betraced back to ancient Greek and the structuralist mode of reasoning which became the focus of philosophical and scientificstudies in 20th century, its founder members, concepts and definitions, the language it uses within itself, are introduced regardingthe scientific and philosophical condition of the era.Claude Levi-Strauss in the 1950s, analyzed cultural phenomena including mythology, kinship (the Alliance theory and theincest taboo), and food preparation. In addition to these studies, he produced more linguistically-focused writings where heapplied Saussure's distinction between langue and parole in his search for the fundamental mental structures of the human mind,arguing that the structures that form the "deep grammar" of society originate in the mind and operate in us unconsciously. Levi-Strauss was inspired by information theory and mathematics.In the very beginning of anthropology, the theorists believed Levi-Strauss analyzes cultural phenomena such as languages,myths and kinship systems to discover what ordered patterns, or structures, they seemed to display. These, he suggested, couldreveal the structure of the human mind. He reasoned that behind the surface of individual cultures there must exist naturalproperties (universals) common to us all. Levi-Strauss focused his attention on the patterns or structures existing beneath thecustoms and beliefs of all cultures. Although structuralism searches universal laws of human mind but the inquiry and its analysisis fundamentally distinctive from the evolutionary point of view. He believed in mental structure on the basis of universal mentalthought process, emphasizing on the perception, 'mental thought process is universal and innate'.Levi-Strauss an interpretation provided new impetus to the understanding of human mind as well as the cultural world thatdiffused beyond the frontier of contemporary anthropology. Levi-Strauss derived structuralism from a school of linguistics whosefocus was not on the meaning of the word, but the patterns that the words form. Levi-Strauss's contribution gave us
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