Macro and Micro Element Analysis of Some Geophytes by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Author : Adil UMAZ, Firat AYDIN, Mehmet FIRAT, Abdulselam ERTAS | Abstract | Full Text | Abstract :In this study, metal contents of Na, K, Mg, Fe, Al, Se, Li, Ba, Be, Cu, Co, Cd, Cr, Mn, Ni, Zn, Pb, B, Mo, and Ti elements of species Allium kharputense, Allium pseudo ampeloprasum, Allium rhetoreanum, Allium shatakiense, Allium vineale, Eremurus spectabilis, Fritillaria persica, and Tulipa sintenisii the geophytes which is edible and used as ornamental plants were determined by ICP-MS. Samples consisting of the aboveground parts of the species used in the study were prepared by adding
concentrated nitric acid and hydrogen peroxide in the microwave solubilization process before being analyzed by ICP-MS. When all species are evaluated according to the metal analysis results of the species used in the study, Na (3054 mg/kg) and Ba (52.68 mg/kg) of A. kharputense species, K (60065 mg/kg), Cu (18.58 mg/kg), Zn (68.14 mg/kg) and Mo
(2.65 mg/kg) of F. persica species, Fe (2285 mg/kg) Cr (8.19 mg/kg), Mn (91.89 mg/kg), Ni (14.82 mg/kg), Pb (3.24 mg/kg), Mg (30505 mg/kg), Al (2556 mg/kg), Ti (183 mg/kg), Se (49.56 mg/kg), Li (2.69 mg/kg), Be (0.05 mg/kg) and Co (2.58 mg/kg) of T. sintenisii species, Cd (4.69 mg/kg) of A. vineale species, B (255 mg/kg) of E. spectabilis species were determined to have higher metal contents. While Cd content of A. rhetoreanum, A. shatakiense, A. vineale, E. spectabilis, F. persica and T. sintenisii species were higher than WHO, Pb contents were found to be low.
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| Investigation of the Effects of the Type and Amount of Offset Printing Ink Used in Metal Packaging Production on Printing Results | Author : Osman SIMSEKER | Abstract | Full Text | Abstract :Metal Offset Printing System is one of the important printing systems produced in metal packaging production. The image to be printed in this system is first transferred to the offset printing plate. When the system starts up, the ink in the places to be printed on the plate and the dampening water in the places that will not be printed are first transferred to the blanket with a certain pressure and then to the metal substrate passing between the blanket and the printing cylinder with a certain pressure. In this study, test prints of 0.2g and 0.3g weights were made with Mineral Oil Based Conventional ink and UV ink used in metal offset printing and the effects of ink change and quantity change on printing results were investigated. For this purpose, test prints were carried out on the Unenamelled and Enamelled surfaces of the metal in the IGT Test Printing device with the same environment and material properties as Conventional and UV ink. The average of the measurements made over 3 of the 4 test prints made for
the measurement were taken visually properly. Comparison was made by measuring the density of the prints, printing brightness (printing brightness) and Chroma. After the examination, it was observed that the enamel coating had sufficient contrast writing, ink density and Chroma values and an effective increase in print gloss value, as well as the type and quantity of ink, affect the print density and print gloss. |
| Evaluation of Quality Traits of Durum Wheat Varieties Lines and Landraces | Author : Sertaç TEKDAL, Mehmet YILDIRIM | Abstract | Full Text | Abstract :Southeastern Anatolia Region is the gene center of durum wheat and the best quality wheat is grown in this region in terms of industrial sector. Landraces that have been adapting to the region for many years have gained importance in terms of natural products in recent times. These genotypes are also used in breeding programs and are important genetic resources. The quality parameters of some durum wheat varieties, lines and
local populations were examined in this study conducted in Diyarbakir and Kiziltepe locations, with 2 replications according to randomized blocks trial design in the 2011-2012 growing season. In the study, 50 varieties, 25 landraces and 75 lines (total 150 genotypes) were used as materials. In the study, test weight, thousand kernel weight, protein content, vitrousness
ratio, mSDS value and semolina color were investigated. While the varieties did not show any superiority for properties, the lines had superiority in terms of test weight, semolina color and mSDS values. Landraces were found to be lower in terms of test weight, semolina color and mSDS than varieties and lines, but higher in terms of protein content, vitreousness ratio and thousand kernel weight. As a result, it is understood that durum wheat landraces are important genetic resources in terms of
quality and have significant potential for use in breeding programs. |
| Analysis of the Effects of Different Core Materials on Transformer Efficiency | Author : Yildirim ÖZÜPAK | Abstract | Full Text | Abstract :Transformers are among the most important components of the electricity transmission and distribution network. The high efficiency of transformers means that power systems work efficiently. Technological advances in power systems impose responsibility on transformer designers to produce both more economical and more efficient transformers. It is a complex
three-dimensional structure consisting of a large number of modules such as transformer, core, windings, isolation, and many other equipments. There are different types of magnetic materials used in the core of the transformer. However, amorphous magnetic materials and transformers designed with these materials have started to be the center of attention. In
this study, the Finite Element model of the core-type transformer was analyzed by using FEM-based ANSYS-Maxwell software of the transformer whose core was designed with different magnetic materials to find the losses of the transformer with the same dimensions and operating conditions. Analyzes were made to compare different electromagnetic properties such as magnetic flux density, current density, core losses, eddy current losses, and magnetic vector potential for different core materials. |
| Cultivation of Forage Pea and Important Agricultural Traits of GAP Pembesi Forage Pea Cultivar | Author : Mehmet Salih SAYAR | Abstract | Full Text | Abstract :Forage pea (Pisum sativum spp. arvense L.) is one of the annual coolseason legume forage species. It has high forage yield and forage quality, when harvested in the appropriate period of the plant. Due to the superior features of the species, many researchers have intensively studied on the species in Turkey for improving new cultivars in the recent years. As a
result of the intensive breeding studies carried out the Southeastern Anatolia Region ecological conditions, the first forage pea variety of the region, GAP Pembesi, was registered. When compared the other annual legume forages, the outstanding feature of the GAP Pembesi cultivar is its earliness in flowering and seed maturing time. Moreover, it was found
remarkable in terms of both forage yield and seed yield. According to the results of field trials conducted at different times and locations, determined means of some characteristics of the GAP Pembesi forage pea cultivar were as follows; natural plant height-85-110, main stem length-100-180 cm, main stem thickness 3.5-5.5 mm, fresh forage yield 2500-3500 kg da1, dry forage yield 600-800 kg/ha, crude protein ratio in the dry matter forage 20-22%, the number of pods per plant 10-30 pods / plant, seed number per pod 5-7 seeds/pod, biological yield 700-800 kg da-1, straw yield 500-550 kg da-1, seed yield 250-300 kg da-1, harvest index 35-40% and thousand grain weight 160-210 g. As a result, cultivation of forage pea by
choosing the GAP Pembesi cultivar in the Southeastern Anatolia Region ecological conditions not only will contribute to the sustainable use of our agricultural lands but also making significant contributions to supply quality roughage that its shortage is one of the biggest problem of animal husbandry of Turkey.
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| The Effects of Water/Cement Ratio on Properties of Roller Compacted Concretes | Author : Ismail KILIÇ, Saadet Gökçe GÖK | Abstract | Full Text | Abstract :In the experimental study, roller compacted concrete (RCC) with concrete class of C 30/37 was designed. CEM I 42.5 R Portland cement, four different sizes of aggregate and tap water were used in the mixtures. Water/cement ratios were determined as 0.32, 0.35, 0.38 and 0.41. The water amount was kept constant where the cement and aggregate amounts
were changed in concretes having different water/cement ratios. Cylindrical specimens with a diameter of 15 cm and a height of 30 cm were produced for the determination of the compressive strengths at the ages of 7 and 28 days. 15 cm × 15 cm × 75 cm sized prismatic beams were produced to determine the flexural strengths at the age of 28 days while 15
cm × 15 cm × 15 cm cubic RCC specimens were produced to determine the depth of water penetration under pressure and wear resistance. According to the results of the data obtained, the effects of water/cement ratio on properties of concrete were determined.
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| Use of Organotypic Brain Slices in Neurobiological Studies | Author : Elif MUTLU, Hasan H. S. ABUIYADA | Abstract | Full Text | Abstract :Organotypic brain slice cultures have now become a routine protocol in neurobiology researches. Thanks to the advancement in brain section culture techniques, the opportunity has emerged to examine the pathophysiology of many brain diseases in a tissue context very close to the in vivo situation. In addition to being an alternative to the long-term use of anesthetics and muscle relaxants in in vivo studies, it offers advantages such as maintaining the structural integrity of cell cultures and homogenates, while this culture environment also brings some disadvantages. Throughout this review study, brain slice culture technology was considered together with its advantages and disadvantages and its place in neurobiology studies was examined. These systems, in which cellular integrity is preserved, are much more efficient and useful in
many areas such as neurodegeneration, neurogenesis, neurotoxicity compared to in vitro cell culture and in vivo experimental animal studies. |
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