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Search Results: 1 - 10 of 1448 matches for " Bar?? Kendirli "
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Fourier Coefficients of a Class of Eta Quotients of Weight 16 with Level 12  [PDF]
Bar?? Kendirli
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.68133
Abstract: Recently, Williams [1] and then Yao, Xia and Jin [2] discovered explicit formulas for the coefficients of the Fourier series expansions of a class of eta quotients. Williams expressed all coefficients of 126 eta quotients in terms of \"\" and \"\" and Yao, Xia and Jin, following the method of proof of Williams, expressed only even coefficients of 104 eta quotients in terms of \"\" and \"\" . Here, by using the method of proof of Williams, we will express the even Fourier coefficients of 360 eta quotients i.e., the Fourier coefficients of the sum, f(q) + f(?q), of 360 eta quotients in terms of \"\" and \"\".
Representations by Certain Sextenary Quadratic Forms Whose Coefficients Are 1, 2, 3 and 6  [PDF]
Bar?? Kendirli
Advances in Pure Mathematics (APM) , 2016, DOI: 10.4236/apm.2016.64018
Abstract: Here, we determine formulae, for the numbers of representations of a positive integer by certain sextenary quadratic forms whose coefficients are 1, 2, 3 and 6.
Cusp Forms in and the Number of Representations of Positive Integers by Some Direct Sum of Binary Quadratic Forms with Discriminant
Bar Kendirli
International Journal of Mathematics and Mathematical Sciences , 2012, DOI: 10.1155/2012/303492
Abstract: A basis of 4(Γ0(47)) is given and the formulas for the number of representations of positive integers by some direct sum of the quadratic forms 21
The direct sum of 5 and 6 binary quadratic forms with discriminant -47
B. Kendirli
International Journal of Algebra , 2012,
Economics of Cut Flower Production in Greenhouses: Case Study from Turkey
Berna Kendirli,Belgin Cakmak
Agricultural Journal , 2013,
Abstract: Turkey`s cut flower sector is an agricultural production area with a high export potential despite its problems related with production and marketing. Enterprises in this sector may be classified in two groups as enterprises with export towarded production (big-modern enterprises) and with domestic market towarded production (small-family enterprises) according to their structural and economical properties. This study aimed to determine investment and operation-maintenance expenses of 4 different greenhouse enterprises selected from the above-mentioned groups and economical investigation of rose and carnation production of these enterprises. Results of the study indicated that the expenses of big-modern type enterprises with plastic greenhouses decreased 11.36 m 2 than the other big-modern type. The biggest investment expenses were observed in the enterprises using geothermal heating; when the incomes of these enterprises were investigated in general rose production along with plastic greenhouses were found to be more profitable. Small-family type enterprises were found to be less profitable due to their low investments. In conclusion size of the enterprise, level of the utilized production technology along with the type of cut flower produced are factors affecting the investments profitability in enterprises producing cut flowers.
Irrigation and Economic Aspect of Vineyard in the Gediz basin of Turkey
Berna Kendirli,Belgin Cakmak
Pakistan Journal of Biological Sciences , 2004,
Abstract: The objectives of this study are to obtain irrigation scheduling and to determine the gross return values of vineyard in the Gediz basin both in adequate and limited water conditions. The irrigation programme for adequate water conditions (100%) and the appropriate limited irrigation programme for 90, 80, 70, 60, 50% limited water. The amount of water applied in adequate water conditions is between 467-656 mm whereas in limited water conditions it is between 232-593 mm in clay loam soil. In the adequate water conditions, the highest gross return values were obtained from average and rainy year conditions in both fresh and raisins. In both irrigation conditions, the highest gross return was obtained from raisins
Structural analysis and functional characteristics of greenhouses in the Mediterranean region of Turkey
NY Emekli, B Kendirli, A Kurunc
African Journal of Biotechnology , 2010,
Abstract: This study was carried out to determine the structural analysis and functional characteristics of the greenhouses in the Mediterranean region where 87% of the greenhouse production area in Turkey is concentrated. Information about types, material and construction properties, placement and arrangement of greenhouses in the research area was gathered by questionnaires; then greenhouses in enterprises were divided into three groups based on the covering material, load bearing materials and directional placement. Five greenhouse types with the most economic cross-section were selected and loads acting on structural members of these were calculated. The stretch ratios, resulting from loads acting on beams of each greenhouse, were analyzed by SAP2000 program. Also, the stretch ratios as per whether greenhouse types and covering materials have a statistically significant effect were examined. According to the obtained data, it was found that all of the selected greenhouses could not carry the dead and/or dynamic loads safely. It was also obtained that covering material has a significant effect on dead loads but not on dynamic loads at 0.05 probability levels whereas dead and dynamic loads were significantly affected by structural materials of the greenhouses.
Evaluation of Agricultural Water Use: A Case Study for Kizilirmak
B. Cakmak,B. Kendirli,Y. Ucar
Journal of Tekirdag Agricultural Faculty , 2007,
Abstract: Water is not only a renewable source but also a limited substance. Population growth and development in industry bring about competition among the sectors of water use. Agriculture has the largest rate of water use among the sectors. Most of irrigation schemes cannot be operated efficiently due to management, operation and maintenance problems. Since the farmers irrigate crops based on physical observations of plants, applied irrigation water and irrigation interval are not based on any technical criteria. Also, since water fees cannot be calculated based on amount of water used, it leads excessive water use. A certain land area becomes unavailable for agricultural purposes due to soil salinity and excessive water use. For these reasons, the issues of efficient water use and irrigation performance evaluation are the most critical issues in water use evaluation studies.In this study, water use performance indicators in K z l rmak Basin Irrigation Schemes for the years were 2003-2005 were determined; the results were discussed and evaluated. The water use efficiency indicators including output per unit command area, output per unit irrigated area, output per unit irrigation supply and output per unit water consumed, relative water supply and irrigation ratio were determined as 66-5550 $/ha, 1095-7620 $/ha, 0.03-1.17 $/m3, 0.28-2.18 $/m3, 0.8-9.7, %1-98, respectively.
When the Need for Cognitive Structure does not Cause Heuristic Thinking: The Moderating Effect of the Perceived Ability to Achieve Cognitive Structure  [PDF]
Yoram Bar-Tal
Psychology (PSYCH) , 2010, DOI: 10.4236/psych.2010.12013
Abstract: This research explores the hypothesis that the relationship between need for cognitive structure (NCS) and the use of cognitive biases is moderated by the perceived ability to achieve cognitive structure (AACS). NCS is defined as the extent of preference to use cognitive structuring vs. piecemeal processing as a means to achieve certainty. AACS refers to the extent to which individuals believe that they are able to use information processing processes (cognitive structuring or piecemeal) that are consistent with their level of NCS. To examine this hypothesis, Study 1 explored the effect of the NCS by AACS interaction on the use of confirmation bias. Study 2, demonstrated this effect on the use of framing heuristic. The results of the two studies confirm the hypothesis.
Replacement of Process Scale Chromatography by Counterflow Membrane Cascades  [PDF]
Edwin N. Lightfoot, Bar?? ünal
Advances in Bioscience and Biotechnology (ABB) , 2014, DOI: 10.4236/abb.2014.511106
Abstract: Invention and innovation, always important, become ever more so in these fast changing and competitive times. They are in addition primarily dependent upon the dynamic behavior of the human mind. Our underlying purpose here is to examine these creative processes and to provide means to make them more effective. This is a timely effort because our understanding of perception and its interpretation by the human brain is very rapidly advancing. Even experimental insights into mental activity can be determined with rapidly increasing effectiveness. The framework of our discussion is that of evolution dynamics, and the scientific bases are rapidly developing neural sciences. However the bulk of our discussion deals with a specific example: the replacement of process scale chromatography by membrane-mediated steady counterflow in downstream processing. We do this because inventive activities must depend upon intimate knowledge of the systems available.
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