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Search Results: 1 - 10 of 465 matches for " Ebru Kavak Akpinar "
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Modeling of Climatic Parameters and Determination of Climatic Differences in the City of Elazig-Turkey and its Close Regions  [PDF]
Sinan Akpinar, Ebru Kavak Akpinar
Journal of Environmental Protection (JEP) , 2010, DOI: 10.4236/jep.2010.11006
Abstract: This study deals with the climatic parameters and the climatic differences in Elazig and its close regions (cities of Malatya, Tunceli, Bingöl, Erzincan). Data on mean monthly temperature, daily maximum-minimum temperature, rela-tive humidity, pressure, wind speed, rainfall, solar radiation and sunshine duration were analyzed and modeled for 10-year period, from 1994 to 2003. Malatya city was the hottest area whole period, while the Erzincan city was the coldest area. Maximum temperatures were at highest values in Tunceli. Minimum temperatures reached the warmest values in the Malatya. Erzincan city was the most humid area almost throughout the period while Malatya was the least humid area. Wind speed reached the highest values in the Elazig and the lowest values in the Tunceli. Pressure reached the highest values in the Malatya and the lowest values in the Erzincan. Direct solar radiation reached the highest val-ues in the Tunceli and the lowest values in the Erzincan. Sunshine duration reached the highest values in the Malatya and the lowest values in the Erzincan. A regression analysis was carried out by using the linear regression technique to model the climatic parameters. The models developed can be used in any study related to climatic and its effect on the environment and energy. The models developed in this study can be used for future predictions of the climatic parame-ters and analysing the environmental and energy related issues in Elazig and its close regions (cities of Malatya, Tun-celi, Bingöl, Erzincan).
Ebru Akpinar,Sinan Akpinar
Journal of Urban and Environmental Engineering , 2010,
Abstract: Monthly average daily data of climatic conditions over the period 1994–2003 of cities in the east Anatolia region of Turkey is presented. Regression methods are used to fit polynomial and trigonometric functions to the monthly averages for nine parameters. The parameters namely temperature, maximum–minimum temperature, relative humidity, pressure, wind speed, rainfall, solar radiation and sunshine duration are useful for renewable energy applications. The functions presented for the parameters should enable determination of specific parameter values and prediction of missing values. They also provide some insight into the variation of these parameters. The models developed can be used in any study related to climatic and its effect on the environment and energy.
Ebru Akpinar,Sinan Akpinar,Hakan ?ztop
Journal of Urban and Environmental Engineering , 2009,
Abstract: In the present study, relationship between monitored air pollutant concentrations such as SO2 and the total suspended particles (TSP) data and meteorological factors such as wind speed, temperature, relative humidity and atmospheric pressure was investigated in months of October, November, December, January, February, and March during the period of three years (2003, 2004 and 2005) for Elaz city. According to the results of linear and non-linear regression analysis, it was found that there is a moderate and weak level of relation between the air pollutant concentrations and the meteorological factors in Elaz city.
Structural and Optical Properties of Zinc Nitride Films Prepared by Pulsed Filtered Cathodic Vacuum Arc Deposition

中国物理快报 , 2007,
Abstract: Polycrystalline zinc nitride films are deposited on Corning 7059 glass substrates by pulsed filtered cathodic vacuum arc deposition (PFCVAD). The crystallographic structure is studied by means of x-ray diffraction. Thesemeasurements show that all the films are crystallized in the cubic structure, in a preferred orientation along the (332) and (631) directions. Weak XRD signal shows small crystallites distributed in an amorphous tissue. A small improvement of crystallinity is observed with annealing. Optical parameters such as absorption, energy band gap, Urbach tail, extinction coefficients have been determined. The Urbach tail energy is decreased with annealing at 500°C for one hour. Energy band gap values are found to be increased byannealing.
Time Dependent Wave Packet Study of the H-+ H2 Nonreactive Scattering  [PDF]
Sinan Akpinar, Seda Surucu
Journal of Quantum Information Science (JQIS) , 2011, DOI: 10.4236/jqis.2011.12013
Abstract: Time dependent wave packet calculations have been performed for the H-+ H2nonreactive scattering, summed of elastic and inelastic probabilities, on the recent reported potential energy surface of the systems. The total probabilities for total angular momentum J up to 35 have been calculated to get the converged integral cross sections over collision energy range of 0.20 - 1.42 eV. Integral cross-sections and rate constants have been calculated from the wave packet transition probabilities for the initial states (υ = 0, j = 0) by means of J-shifting method and uniform J-shifting method for J > 0.
Pyrenophora graminea in Fields Sown-spring Barley Angora in Arid District of Turkey
H. Kavak
Pakistan Journal of Biological Sciences , 2004,
Abstract: Barley leaf stripe caused by Pyrenophora graminea was detected for the first time in dryland district of Turkey. With the approximate 3.2% infection rate, the first symptom of the pathogen was detected at the tillering growth stage in 2002 growing season. In second surveys conducted at the milk-ripe stage of Angora barley cv, disease severity was measured approximately 5.3% as a sum. In this assessment, diseased plants were displayed three differ infection type as physiologically in the following; plants without ears, plants with ears but without seeds and plants with ears having deformed seeds. Rates of these symptoms were approximately 2.8, 1.5 and 1%, respectively. The yield loss from leaf stripe was estimated as 5% in 2002. When same crops were treated with experiments in 2003, 9.6% of seeds were displayed P. graminea in vitro tests, while 7.9% of plants demonstrated this infection in field experiments. According to the present results, it is suggested that the direct effect of leaf stripe on yield lose was minor but, it was very important when quarantine conditions are taken into consideration.
Reaction of Some Peach (Prunus persica) Varieties to the Leaf Curl Disease Caused by Taphrina deformans in Arid District of Turkey
H. Kavak
Plant Pathology Journal , 2005,
Abstract: Leaf curl disease, caused by Taphrina deformans(Berk.) Tul., was screened on peach trees located in arid district of Turkey. Different degrees of infection was displayed by ten peach variety at orchard stands in anl urfa district. Assessments were made on upper five leaves of four reverse shoots per tree and ten trees were monitored for each variety during two years. Reaction degrees of varieties were grouped according to infected leaf rates displayed after results were tested with the variance analyse. The most resistant variety was IN and displayed this disease at 26 and 31% infection rates with scale value 2 in 2000 and 2001, respectively. The most susceptible variety was CH and exhibited the leaf curl at the 98 and 100% infection rates with scale value 4 in 2000 and 2001, respectively.
K saltmalar
Aysen Kavak
Türk Kütüphanecili?i , 1996,
The Effects of Sport on the Body Measure from Students of Different Disciplines
Vatan Kavak
Dicle Medical Journal , 2005,
Abstract: Problems arising from excessive body weight may be overcome. Sport emerges to take a great part in this respect. This paper shows how human body is affected by sport.The individuals were selected from the students of two different disciplines. The body measure of students totaling to 200,, was then compared to those of the same number of students, who did not perform a regular physical activity. The values pertaining to the weight variable, implied a significant difference for both males and females. The BMI values obtained for the all students were in “no risk” group, while the average BMI values for the all female students, emerged to exhibit differences from those of the all male students.The results and the findings of this investigation implied that physical activities practiced regularly, have an influence on the body measure index of individuals.
LC Türkiye Tarihi (DR401-DR741) Tablosu
Aysen Kavak
Türk Kütüphanecili?i , 1998,
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