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VIII. Sebze Tarımı Sempozyumu (23-26 Haziran 2010 Van) Bildiri Kitabı

CEMALOĞLU, Nazmi

Serada organik domates yetiştiriciliğinde bitki besleme.

166718

Özel yetenekli öğrencilerin yaratıcı yazma beceri düzeylerinin incelenmesi
Investigating creative writing skills of gifted and talented students

Özcan, Bahadır

Bu araştırmada, Bilim ve Sanat Merkezinde (BİLSEM) öğrenim görmekte olan özel yetenekli öğrencilerin yaratıcı yazma beceri düzeylerinin cinsiyet ve yetenek alanı değişkenlerine göre incelenmesi amaçlanmıştır. Bu araştırma nedensel karşılaştırma türü bir çalışmadır. Araştırmanın çalışma grubunu BİLSEM’de öğrenim gören resim, müzik ve genel yetenek alanlarında özel yetenekli olduğu tespit edilen 85 öğrenci oluşturmaktadır. Veriler, öğrencilerden alınan yazılı anlatımların değerlendirilmesinde Yaratıcı Yazma Dereceli Puanlama Anahtarı (rubric) kullanılmıştır. Verilerin analizinde bağımsız gruplar için t-testi ve Kruskal Wallis-H testi kullanılmıştır. Araştırmanın sonucunda özel yetenekli erkek öğrencilerin, yaratıcı yazma düzeyleri kız öğrencilerden anlamlı düzeyde daha yüksektir. Ayrıca resi...

169658

Can Plant Extracts Be Used as an Alternative for Short- and/or Long-Term Storage of Semen in Some Animal Species?

Tuncer,, Pürhan Barbaros

Ex situ koruma, genetik kaynakların ve nesli tükenmekte olan kanatlıların korunmasında önemli bir yöntemdir. Gamet koruması için kanatlılarda tek yöntem spermanın dondurulmasıdır. Çünkü kanatlı yumurtaları oldukça hacimlidir ve bunların dondurularak saklanması için kullanılan kriyoprotektanların çözüm sonu uzaklaştırılması pek mümkün değildir. Son yirmi yılda, standart kanatlı spermasının don durma teknolojisini geliştirmek için birçok çalışma yapılmıştır. Farklı ırklara uyum sağlamak için birçok girişim ve yöntem araştırılmıştır. Bu bölümde, ilk olarak spermatozoanın yapısı ve kanatlı spermasının dondurulmasını etkileyen ana faktörlerden bahsedilmiştir. Nanopartiküller ve sperma sulandırıcılarına katılan nanopartiküllerin sperma dondurulabilirliği üzerine etkileri hakkında bilgi verilmiş...

169771

The effects of Fe2O3 based DOC and SCR catalyst on the exhaust emissions of diesel engines

Resitoglu, Ibrahim Aslan

The effects of Fe2O3 based DOCs (Diesel Oxidation Catalyst) and SCR (Selective Catalytic Reduction) catalysts on the exhaust emissions of diesel engine were investigated in this experimental study. The investigated catalysts, Al2O3 - TiO2/CeO2/Fe2O3 (ATCF) and Al2O3- Nb2O5/CeO2/Fe2O3 (ANCF), were produced with impregnation method and aged for 6 h at 600 degrees C. FE-SEM (Field Emission Scanning Electron Microscopy), XRD (X-Ray Diffraction), XRF (X-Ray Fluorescence) and BET (Brunauer-Emmett-Teller) Surface Area analyzes were carried out to determine the specifications of catalysts. The catalytic performances of the DOCs were tested for the oxidation of CO, HC, PM, NO while SCR catalysts were tested for SCR of NOx using NH3. An individual exhaust system was built up and mounted to the engin...

Makale2020Fuel 4 | 0 Erişime Kapalı
169772

Nanostructured Photocatalysts Chapter 15 - Black phosphorus-based photocatalysts for energy and environmental applications

Altan, Orhan

Photocatalysis using semiconductor materials to conduct chemical reactions more efficiently with the aid of sunlight irradiation is foreseen as a promising solution to combat the energy and environmental pollution crisis that the world is facing at present. Finding a suitable semiconductor material that harvests a large portion of the sunlight spectrum with high photocatalytic efficiency lies in the heart of photocatalysis. In this regard, black phosphorus (BP), a rising star two-dimensional (2D) semiconducting material, has recently been regarded as an abundant, nontoxic, metal-free, and cheap photocatalyst with a suitable bandgap and broad light absorption ability. In this chapter, after the introduction of the general properties and synthesis of BP, the photocatalytic efficiency of BP a...

169777

Boosting formic acid dehydrogenation via the design of a Z-scheme heterojunction photocatalyst: The case of graphitic carbon nitride/Ag/Ag3PO4-AgPd quaternary nanocomposites

Altan, Orhan

The development of an efficient, eco-friendly, practical, and selective way to decompose formic acid (FA) into H2 and CO2 is crucial for the utilization of FA as a chemical hydrogen storage material in hydrogen economy. In this regard, photocatalytic FA dehydrogenation attracts great attention owing to its potential to meet the above-mentioned requirements. Interestingly, there is no example of heterojunction photocatalyst that tunes the hole potential of the semiconductor, resulted in a better photocatalytic activity. We report herein for the first time the design and fabrication of a novel Z-scheme heterojunction photocatalyst for FA dehydrogenation, denoted as g-CN/Ag/Ag3PO4-AgPd comprising graphitic carbon nitride (g-CN) and Ag3PO4 semiconductors, Ag and AgPd alloy nanoparticles (NPs)....

Makale2021Applied Surface Science 2 | 0 Erişime Kapalı
169802

The influence of band bending phenomenon on photocatalytic Suzuki-Miyaura coupling reaction: The case of AgPd alloy nanoparticles supported on graphitic carbon nitride

Altan, Orhan

The development of solar-powered systems for applications other than energy, such as photocatalytic organic reactions, will benefit in the resolution of environmental issues while also lowering production costs. In this study, the photocatalytic activity of g-CN(G)-AgPd, which was prepared by synthesizing AgPd alloy nanoparticles (NPs) on g-CN, was investigated in the Suzuki-Miyaura coupling (SMC) reaction. The photocatalytic activity of g-CN(G)-AgPd in an ethanol/water mixture at ambient temperature was discovered to be among the highest ever recorded. Under vis-light illumination, g-CN(G)-AgPd converted all of the aryl iodides and most of the aryl bromides investigated to desired coupling products in 15 min with excellent isolated yields, and it was used at least five times without signi...

Makale2022Applied Surface Science 2 | 0 Erişime Kapalı
169804

A rare example of the in situ formation of palladium nanoparticles: The emergence of catalytically active palladium nanoparticles from Pd (II) phosphine complexes in the Suzuki–Miyaura coupling reaction

Altan, Orhan

Suzuki–Miyaura coupling (SMC) reactions are one of the most promising routes for carbon–carbon bond formation. It is believed that metal complexes, particularly palladium complexes, are the most effective catalysts for this purpose. However, the catalysis nature whether it is homogenous or heterogeneous is under debate. It is commonly believed that a homogenous catalysis pathway is responsible for the catalytic activity when the phosphine ligands are present in the structure due to the strong phosphorus-metal interactions. In this study, Pd (II) complexes of phosphino-benzaldoxime ligands were synthesized, characterized, and tested in SMC reactions. Interestingly, it was found that the catalytic activity increased by 11 times when the amount of catalyst was reduced by 10-fold and increased...

169807

The rational design of a graphitic carbon nitride-based dual S-scheme heterojunction with energy storage ability as a day/night photocatalyst for formic acid dehydrogenation

Altan, Orhan

Photocatalytic formic acid dehydrogenation (FAD) has been regarded as one of the most promising methods of producing H2 in a sustainable manner. In the photocatalytic FAD reaction, photogenerated holes play an important role in the reaction mechanism and thus in the efficiency of photocatalysts. However, the design of photocatalytic systems capable of generating high hole potential without compromising the reducing ability of the photocatalyst is extremely rare for the FAD reaction. In this respect, we report herein a novel and highly efficient heterojunction photocatalyst composed of 2D graphitic carbon nitride, 2D MnO2, 1D MnOOH, and 0D PdAg alloy nanoparticles, denoted as GCN/MnO2/MnOOH-PdAg, that can create high reduction and oxidation potentials via a dual S-scheme heterojunction. The...

169995

Estimation of soil liquefaction using artificial intelligence techniques: an extended comparison between machine and deep learning approaches

Şehmusoğlu, Eyyüp Hakan | Kurnaz, Talas Fikret | Erden, Caner

This study investigates the effectiveness of various deep learning (DL) algorithms in predicting soil liquefaction susceptibility. We explore a spectrum of algorithms, including machine learning models such as Support Vector Machines (SVMs), K-Nearest Neighbors (KNN), and Logistic Regression (LR), alongside DL architectures like Convolutional Neural Networks (CNNs), Long Short-Term Memory networks (LSTMs), Bidirectional LSTMs (BiLSTMs), and Gated Recurrent Units (GRUs). The performance of these algorithms is assessed using comprehensive metrics, including accuracy, precision, recall, F1-score, receiver operating characteristic (ROC) curve analysis, and area under the curve (AUC). Cross-entropy loss is employed as the loss function during model training to optimize the differentiation...

170014

Development of Fe2O3 based catalysts to control pollutant emissions in diesel engines

Resitoglu, Ibrahim Aslan | Yıldırımcan, Saadet

Exhaust after treatment systems have become a necessity to eliminate pollutant emissions as required by standard. Nowadays, DOC and SCR are widely used after treatment technologies in diesel vehicles. In this experimental study carried on DOC and SCR systems, two different catalysts as Al2O3-TiO2/Fe2O3 and Al2O3-Pt/Fe2O3 were produced with impregnation method. The catalysts were characterized by Field Emission-Scanning Electron Microscope (FE-SEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Brauner-Emmett-Teller (BET). Each catalyst was tested as DOC and SCR in real working state to see the effect of catalyst on pollutant emissions in diesel engine. Results showed that the use catalysts as DOC led to significant decrease in CO, HC, NO and smoke emissions. The exhaust temperature...

Makale2017Fuel 0 | 0 Erişime Kapalı
169369

Genomewide association of male reproductive traits in Aksaray Malakli dogs

Tuncer, Pürhan Barbaros | Büyükleblebici Serhat

Male reproductive parameters are often used for the functional examination and evaluation of predicted genetic values for future aspects. However, these traits are relatively reliable until the measurable effects are expressed on desired traits. Therefore, we aimed to associate the single nucleotide polymorphism (SNP) geno type of the investigated characteristics and reproductive loci. A total of 46 male dogs aredividedintothreeagegroups(I≤3years,n = 19; II 4–6 years; n = 19, and III ≥7years,n = 8). The testis, scrotum and body weight, libido sexualis and ejaculation time for each fraction were monitored as functional traits, while the pH, fractional semen volume, motility, concentration, and abnormal and dead spermatozoa rate were recorded as spermatological traits. The A...

169396

The effect of cysteine and glutathione on sperm and oxidative stress parameters of post-thawed bull semen

Tuncer, Pürhan Barbaros | Büyükleblebici, Serhat

The aim of this study was to determine the effects of antioxidants such as reduced glutathione (GSH) and cysteine in Laiciphose extender on semen parameters, fertilizing ability, lipid peroxidation (LPO) level and glutathione peroxidise (GPx) activity of post-thawed bull semen. Totally 54 ejaculates of three bulls were used in the study. Five groups, namely; GSH (0.5 and 2 mM), cysteine (5 and 10 mM) and control group, were conducted to test the antioxidants in Laiciphose . Insemination doses were processed that each 0.25-mL straw contained 15 106 sperm. The addition of antioxidants did not present any significant effect on the percentages of post-thaw sperm morphology (acrosome and total abnormalities), subjective, CASA and progressive motilities, as well as sperm motility characteristics...

169489

Değişik sulandırıcılar ile dondurulan aygır spermalarının in vitro değerlendirilmesi üzerine çalışmalar

Tuncer, P. B.

The aim of this research was to investigate spermatolojical charecteristics of stallion semen frozen with lactose and tris extenders. This experiment was done in the Anadolu State Farm and five Pure Arabian Stallions were used. Semen taken from five Arabian Stallions were extended in a way that to ensure 100x106 /cm3 motile spermatozoa by lactose and tris extenders and frozen in the macrotube in liquid nitrogen vapour. In the semen after thawing of 500C-40 seconds the average values of semen; sperm motility (%),total percentage of abnormal sperm (%), percentage of abnormal acrosome (%) and thermo-rezistance test motility (%) in 1., 2. and 3. hours were recorded; %47.44; %31.73; %22.64; %22.74; %9.13 and %2.58 respectively for frozen semen by lactose. In the semen after thawing of 500C-...

169506

Evaluationofpost-thawqualityofBrown-SwissandHolsteinbullsemendilutedwith different extenders

Tuncer,, Pürhan Barbaros

Aim: To evaluate post-thaw guality of Brown-Swiss and Holstein bull semen diluted with different extenders. Materials and Methods: Ejaculates obtained from Holstein (n=36) and Brown-Swiss (n=36) bulls were divided into three aliquots and diluted with Tris-based, Optidyl® and Bioxcell® extenders, respectively. Thereafter they were frozen and thawed following a standard protocol. The effectiveness of freezing extenders was assessed according to postthaw sperm motility, acrosomal and total abnormalities and plasma membrane integrity. Results: With respect to Holstein bull semen, the highest percentages of sperm subjective (p

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DEVELOPMENT OF ARTIFICIAL INTELLIGENCE-SUPPORTED OBJECTIVE CRITERIA IN THE APPRECIATION OF THE MORAL ELEMENT IN TAX EVASION CRIMES: A LEGAL AND CRITICAL EVALUATION

Özsungur, Fahri

According to the provisions of General Communiqué No. 306 of the Tax Procedure Law, tax inspection authorities (tax inspectors and assistant tax inspectors) are granted the authority to evaluate whether a taxpayer has deliberately committed the act of using forged or misleading documents in terms of their content and to decide whether to file a criminal complaint. In this context, the authorities are under a direct obligation to report the offense to the Public Prosecutor’s Office. Under the provisions of the communiqué, the determination of intent with respect to documents that are established to have been used as forged or misleading in terms of their content, as well as the assessment of the concept of “knowledge,” is left entirely to the discretion of the tax inspection author...

Kitap Bölümü2025Nobel Yayınları 23 | 0 Erişime Kapalı
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