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2019

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Karyomorphological Features Of Turkish Centaurea (Subgenus Cyanus, Asteraceae) Species And Its Taxonomic Importance, Emrah Şi̇ri̇n, Meryem Bozkurt, Tuna Uysal, Kuddi̇si̇ Ertuğrul Jan 2019

Karyomorphological Features Of Turkish Centaurea (Subgenus Cyanus, Asteraceae) Species And Its Taxonomic Importance, Emrah Şi̇ri̇n, Meryem Bozkurt, Tuna Uysal, Kuddi̇si̇ Ertuğrul

Turkish Journal of Botany

In this study, the karyomorphology of 20 Turkish Centaurea (subgenus Cyanus) taxa was examined. The number of chromosomes of 11 taxa belonging to the subgenus Cyanus was determined for the first time. As a result of the karyomorphological studies, the number of basic chromosomes was determined to be x = 8, 10, and 12 in annuals and x = 10 and 11 in perennials. The populations are tetraploid in the seven perennial taxa and polyploidy is not rare for this group. On the other hand, all annual taxa are diploid. Considering the asymmetry indices, we can conclude that most taxa …

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The Epiphytic Bryophyte Vegetation Of Kamilet Valley (Artvin, Turkey), Mevlüt Alataş, Nevzat Batan, Tülay Ezer Jan 2019

The Epiphytic Bryophyte Vegetation Of Kamilet Valley (Artvin, Turkey), Mevlüt Alataş, Nevzat Batan, Tülay Ezer

Turkish Journal of Botany

In this study, the vegetation of epiphytic bryophytes in the Kamilet Valley and its surroundings (Arhavi, Artvin) was investigated. The study area is located within the borders of the Eastern Black Sea Mountains and is one of the 122 important plant areas in Turkey. The investigation of epiphytic bryophyte communities was carried out in 2016 during different vegetation periods according to Braun-Blanquet?s phytosociological methodology. Phytosociological data obtained from 65 relevés were ordinated using detrended correspondence analysis (DECORANA) and classified using two-way indicator species analysis (TWINSPAN). Consequently, six epiphytic bryophyte communities new to Turkey were determined with TWINSPAN and DECORANA: Leucobryo-Tetraphidetum …

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Genetic Structure And Diversity Of Adonis L. (Ranunculaceae) Populations Collected From Turkey By Inter-Primer Binding Site (Ipbs) Retrotransposon Markers, Arash Hossein Pour, Faruk Karahan, Emre İlhan, Ahmet İlçi̇m, Kami̇l Hali̇loğlu Jan 2019

Genetic Structure And Diversity Of Adonis L. (Ranunculaceae) Populations Collected From Turkey By Inter-Primer Binding Site (Ipbs) Retrotransposon Markers, Arash Hossein Pour, Faruk Karahan, Emre İlhan, Ahmet İlçi̇m, Kami̇l Hali̇loğlu

Turkish Journal of Botany

The genus Adonis L. is a member of Ranunculaceae and consists of perennial and annual herbaceous plants included in the tribe Adonideae under the subfamily Ranunculoideae. Botanically, Ranunculaceae comprises vital medicinal plants. Molecular markers are one of the most effective tools for exploring genetic variation that can enhance breeding efficiency. To identify the genetic diversity of 62 Adonis ecotypes collected from different regions in Turkey, the interprimer binding site (iPBS) retrotransposon system was used. Of the 83 iPBS primers used, 10 provided sufficient polymorphic data, generating a total of 204 alleles. The number of iPBS bands per individual was 3.29, …

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Assessment Of Benthic Diatoms Taxonomic Diversity At Coastal Biotopes With Different Anthropogenic Impact (Crimea, The Black Sea), Elena Nevrova, Alexei Petrov Jan 2019

Assessment Of Benthic Diatoms Taxonomic Diversity At Coastal Biotopes With Different Anthropogenic Impact (Crimea, The Black Sea), Elena Nevrova, Alexei Petrov

Turkish Journal of Botany

An analysis of the taxonomic diversity of benthic diatoms was carried out for near-shore biotopes of Crimea with different content of trace metals and organic pollutants (PCBs, PAHs, DDTs). Taxonomic distinctness indices such as average taxonomic distinctness, AvTD (Δ+) and variation in taxonomic distinctness, VarTD (Λ+) were used for evaluation of the hierarchical structure of diatom taxocenes of two intact sites (Dvuyakornaya Bay and Cape Fiolent) and two heavily polluted water areas (Sevastopol Bay and Balaklava Bay). The highest similarity of species was revealed between healthy biotopes, in spite of their differences in hydrological and hydrochemical conditions. AvTD values for …

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Bioassessing Ecological Status Of Surface Waters In The Araban-Yavuzeli Catchment (Turkey): Application Of Diatom Indices, Abuzer Çelekli̇, Fatma Bi̇lgi̇ Jan 2019

Bioassessing Ecological Status Of Surface Waters In The Araban-Yavuzeli Catchment (Turkey): Application Of Diatom Indices, Abuzer Çelekli̇, Fatma Bi̇lgi̇

Turkish Journal of Botany

Within the scope of the European Union Water Framework Directive, diatom assemblages as biological quality components were used to evaluate the ecological status of 12 surface waters in the Araban-Yavuzeli catchment between October 2013 and October 2014. A total of 75 diatom species were identified during the study period. Amphora ovalis, Denticula elegans, Gomphonema parvulum,Gomphonema truncatum, and Navicula cryptocephala were commonly observed. The relationship between diatom assemblages and environmental factors was assessed by canonical correspondence analysis and weighted average regression. Dissolved oxygen, tem-perature, nitrate, biological oxygen demand, lead, and copper played significant roles in the distribution and composition of diatom …

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Study Of Seed Coat Microsculpture Organization During Seed Development In Zygophyllum Fabago (Zygophyllaceae), Elham Mohajel Kazemi, Mina Kazemian, Fatemeh Majid Zadeh, Mahbubeh Aliasgharpour, Ali Movafeghi Jan 2019

Study Of Seed Coat Microsculpture Organization During Seed Development In Zygophyllum Fabago (Zygophyllaceae), Elham Mohajel Kazemi, Mina Kazemian, Fatemeh Majid Zadeh, Mahbubeh Aliasgharpour, Ali Movafeghi

Turkish Journal of Botany

The ontogeny of seed coat and endosperm tissue in Zygophyllum fabago L. was studied to determine their developmental importance using different histochemical and microscopic techniques. Our results revealed that the ovuleof Z. fabago was of the anatropous and bitegmic type. The inner epidermis cells were retained up to the end of seed development, whereas the other layers were removed in the early stages. Moreover, the outer integument was changed into the seed coat sculptures during the seed development. Concurrently, multiple cytoplasmic strings were formed at the seed coat cells. Fluorescence microscopic analysis indicated that callose and polyphenols were laid down …

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Nutlet Structures Of Subsection Fragiles Of The Genus Stachys (Lamiaceae) From Turkey And Their Systematic Applications, Mehmet Cengi̇z Karai̇smai̇loğlu, Özal Güner Jan 2019

Nutlet Structures Of Subsection Fragiles Of The Genus Stachys (Lamiaceae) From Turkey And Their Systematic Applications, Mehmet Cengi̇z Karai̇smai̇loğlu, Özal Güner

Turkish Journal of Botany

This paper includes the morphological and anatomical characters of the nutlets of 7 endemic species of the subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and the systematic significance of these characteristics, using one-way analysis of variance and cluster and principal component analyses. Morphological characters such as the dimensions, shapes, colors, and surfaces of the nutlets were studied using light and scanning electron microscopes. The structures and thicknesses of the pericarp and endosperm layers, as well as the sizes of the cotyledon in the nutlets, were anatomically studied. The outcomes revealed that the taxa varyfrom each other in terms …

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A New Subspecies Of Saxifraga Artvinensis V.A.Matthews (Saxifragaceae) From Northeastern Anatolia, Sali̇h Terzi̇oğlu, Kami̇l Çoşkunçelebi̇, Murat Erdem Güzel Jan 2019

A New Subspecies Of Saxifraga Artvinensis V.A.Matthews (Saxifragaceae) From Northeastern Anatolia, Sali̇h Terzi̇oğlu, Kami̇l Çoşkunçelebi̇, Murat Erdem Güzel

Turkish Journal of Botany

Saxifraga artvinensis V.A.Matthews, which is endemic to Turkey, was discovered on Tiryal Mountain (A8 Artvin, northeastern Turkey). Approximately 175 km from its type locality, a new population of the species was discovered, in the Picea orientalis forest in the Altındere Valley National Park, in A7 Trabzon (northeastern Turkey). A comparison with the known population of S. artvinensis confirmed that this new population represented a new taxon and is described as S. artvinensis subsp. meryemii Terzioğlu & Coşkunç. An identification key and comparison with closely related taxa, based on both morphological and molecular properties, are also provided. The studied samples, belonging …

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Artificial Neural Models Of Concentrations Of Fungal Spores In The Air For Aerobiological Research, Agnieszka Grinn-Gofron Jan 2019

Artificial Neural Models Of Concentrations Of Fungal Spores In The Air For Aerobiological Research, Agnieszka Grinn-Gofron

Turkish Journal of Botany

This article describes in detail an advanced statistical method, the artificial neural network, and the possibilities for its application in aerobiological analyses. The study and models involve the concentration of fungal spores in the air and their relationship with various biological and environmental factors. The author hopes that this work will contribute to a wider use of this method not only in the study of spores but also the concentration of pollen grains.

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Characterization And Tissue-Specific As Well As Heat-Stress Expression Analysis Of Cbl-Interacting Protein Kinase Genes In Dimocarpus Longan Lour, Wei Zheng, Xueming Dong, Xuefei Yu, Qiuying Zhang Jan 2019

Characterization And Tissue-Specific As Well As Heat-Stress Expression Analysis Of Cbl-Interacting Protein Kinase Genes In Dimocarpus Longan Lour, Wei Zheng, Xueming Dong, Xuefei Yu, Qiuying Zhang

Turkish Journal of Botany

The CBL-interacting protein kinase (CIPK) gene family plays important roles in plant growth, development, and responses to abiotic stresses. To date, the CIPKs have been extensively identified and characterized in various plants. However, there have been few studies on CIPKs in Dimocarpus longan Lour (D. longan). In this study we identified eight putative CIPKs in D. longan (DlCIPKs) according to RNA-seq data. The physicochemical properties, subcellular localization, conserved motifs, phylogenetic relationships, glycosylation and phosphorylation sites, and gene ontology annotation were analyzed using bioinformatics tools. The tissue-specific and heat-stress-responsive expressions were systematically investigated as well. Ten motifs widely maintained by DlCIPKs …

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Biology Of Flowering And Insect Visitors Of Iris Aphylla L. (Iridaceae), Agnieszka Dabrowska, Magdalena Smigala, Bozena Denisow, Krystyna Winiarczyk Jan 2019

Biology Of Flowering And Insect Visitors Of Iris Aphylla L. (Iridaceae), Agnieszka Dabrowska, Magdalena Smigala, Bozena Denisow, Krystyna Winiarczyk

Turkish Journal of Botany

The paper presents the morphology of the flower of Iris aphylla L., which is a protected species in many European countries. The study comprises phenological observations of flowering and assessment of nectar and pollen production, and flowering and fruiting abundance. Additionally, the number of insect visitors on the flowers was monitored. The investigations of specimens originating from 4 populations in central-eastern Poland (Wyzyna Lubelska Upland) were conducted in the Botanical Garden of Maria Curie-Sklodowska University. It was found that morphological features of the analysed flowers, i.e. the 6-angular ovary and the perianth tube, which is 2-fold longer than the ovary, …

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Investigating The Anatomy Of The Halophyte Salsola Crassa And The Impact Of Industrial Wastewater On Its Vegetative And Generative Structures, Narjes Sadat Mohammadi Jahromi, Parissa Jonoubi, Ahmad Majd, Mansooreh Dehghani Jan 2019

Investigating The Anatomy Of The Halophyte Salsola Crassa And The Impact Of Industrial Wastewater On Its Vegetative And Generative Structures, Narjes Sadat Mohammadi Jahromi, Parissa Jonoubi, Ahmad Majd, Mansooreh Dehghani

Turkish Journal of Botany

Salsola crassa M.B. is one of the most successful plants used against industrial pollutants. In this study, we selected young Salsola crassa M.B. plants from their natural habitats. Some plants were irrigated with industrial wastewater containing Fe, Co, Ni, Cu, Pb, and Zn, and others were irrigated with tap water for 3-4 months. Afterwards, the shoots and roots were randomly cut, separated, fixed, dyed, and observed using light microscopy. Structural changes were analyzed by stereology. There were some differences in appearance and structure between the treated and control samples. For example, the number of leaves and flowers and the size …

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Cover And Contents Jan 2019

Cover And Contents

Turkish Journal of Botany

No abstract provided.

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Amanita Cinis And A. Olivovaginata (Basidiomycota, Amanitaceae), Two New Species, And The First Record Of A. Emodotrygon, From Northwestern Pakistan, Sadiq Ullah, Andrew William Wilson, Rodham Elliott Tulloss, Muhammad Fiaz, Gregory Michael Mueller, Abdul Nasir Khalid Jan 2019

Amanita Cinis And A. Olivovaginata (Basidiomycota, Amanitaceae), Two New Species, And The First Record Of A. Emodotrygon, From Northwestern Pakistan, Sadiq Ullah, Andrew William Wilson, Rodham Elliott Tulloss, Muhammad Fiaz, Gregory Michael Mueller, Abdul Nasir Khalid

Turkish Journal of Botany

Two new species found in Northwestern Pakistan in the mushroom genus Amanita are described and illustrated. Phylogenetic data derived from nuclear ribosomal ITS and LSU regions along with morphological characterizations indicate that these species are novel. Amanita cinis is a member of section Roanokenses, while A. olivovaginata is representative of the section Vaginatae. Amanita emodotrygon, recently described from the state of Uttarakhand, India, is new to Pakistan.

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Looking In The Heads Of Experienced Teachers – Do They Use The Wide Range Of Principles Of Effective Teaching When Analysing Lessons?, Wilfried Plöger, Matthias Krepf, Daniel Scholl, Andreas Seifert Jan 2019

Looking In The Heads Of Experienced Teachers – Do They Use The Wide Range Of Principles Of Effective Teaching When Analysing Lessons?, Wilfried Plöger, Matthias Krepf, Daniel Scholl, Andreas Seifert

Australian Journal of Teacher Education

This study aimed to examine whether principles of effective teaching constitute essential criteria for a systematic and successful analysis of lessons. After watching a video of a complete lesson, the participants (each of nine experienced and pre-service teachers) were asked to analyse this lesson in terms of effectiveness for pupils’ learning in the form of an open dialogue. Their comments were analysed by means of a qualitative content analysis and revealed that the experienced teachers independently used the wide range of principles of effective teaching and differed significantly from the pre-service teachers in this regard. Particularly striking were the large …

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Construction Of The Holonomy Invariantfoliated Cocycles On The Tangent Bundle Via Formal Integrability, Fatemeh Ahangari Jan 2019

Construction Of The Holonomy Invariantfoliated Cocycles On The Tangent Bundle Via Formal Integrability, Fatemeh Ahangari

Turkish Journal of Mathematics

This paper is dedicated to exhaustive structural analysis of the holonomy invariant foliated cocycles on the tangent bundle of an arbitrary $(m+n)$-dimensional manifold. For this purpose, by applying Spencer theory of formal integrability, sufficient conditions for the metric associated with the semispray $S$ are determined to extend to a transverse metric for the lifted foliated cocycle on $TM$. Accordingly, this geometric structure converts to a holonomy invariant foliated cocycle on the tangent space, which is totally adapted to the Helmholtz conditions.

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A Novel Graph-Operational Matrix Method For Solving Multidelay Fractional Differential Equations With Variable Coefficients And A Numerical Comparative Survey Of Fractional Derivative Types, Ömür Kivanç Kürkçü, Ersi̇n Aslan, Mehmet Sezer Jan 2019

A Novel Graph-Operational Matrix Method For Solving Multidelay Fractional Differential Equations With Variable Coefficients And A Numerical Comparative Survey Of Fractional Derivative Types, Ömür Kivanç Kürkçü, Ersi̇n Aslan, Mehmet Sezer

Turkish Journal of Mathematics

In this study, we introduce multidelay fractional differential equations with variable coefficients in a unique formula. A novel graph-operational matrix method based on the fractional Caputo, Riemann-Liouville, Caputo-Fabrizio, and Jumarie derivative types is developed to efficiently solve them. We also make use of the collocation points and matrix relations of the matching polynomial of the complete graph in the method. We determine which of the fractional derivative types is more appropriate for the method. The solutions of model problems are improved via a new residual error analysis technique. We design a general computer program module. Thus, we can explicitly monitor …

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A Discrete Chaotic Dynamical System On The Sierpinski Gasket, Mustafa Saltan, Ni̇sa Aslan, Bünyami̇n Demi̇r Jan 2019

A Discrete Chaotic Dynamical System On The Sierpinski Gasket, Mustafa Saltan, Ni̇sa Aslan, Bünyami̇n Demi̇r

Turkish Journal of Mathematics

The Sierpinski gasket (also known as the Sierpinski triangle) is one of the fundamental models of self-similar sets. There have been many studies on different features of this set in the last decades. In this paper, initially we construct a dynamical system on the Sierpinski gasket by using expanding and folding maps. We then obtain a surprising shift map on the code set of the Sierpinski gasket, which represents the dynamical system, and we show that this dynamical system is chaotic on the code set of the Sierpinski gasket with respect to the intrinsic metric. Finally, we provide an algorithm …

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Spectral Properties Of Boundary-Value-Transmission Problems With A Constant Retarded Argument, Erdoğan Şen Jan 2019

Spectral Properties Of Boundary-Value-Transmission Problems With A Constant Retarded Argument, Erdoğan Şen

Turkish Journal of Mathematics

In this work, spectra and asymptotics of eigenfunctions of a generalized class of boundary value problems with constant retarded argument are obtained. Contrary to previous works in the literature, the problem has nonclassical transmission conditions.

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Global Dynamics Of Perturbation Of Certain Rational Differenceequation, Sabina Hrustic, Mustafa Kulenovic, Samra Moranjkic, Zehra Nurkanovic Jan 2019

Global Dynamics Of Perturbation Of Certain Rational Differenceequation, Sabina Hrustic, Mustafa Kulenovic, Samra Moranjkic, Zehra Nurkanovic

Turkish Journal of Mathematics

We investigate the global asymptotic stability of the difference equation of the form \begin{equation*} x_{n+1}=\frac{A x_{n}^{2}+F}{a x_{n}^{2}+e x_{n-1}}, \quad n=0,1,\ldots, \end{equation*}% with positive parameters and nonnegative initial conditions such that $x_0 + x_{-1}>0$. The map associated to this equation is always decreasing in the second variable and can be either increasing or decreasing in the first variable depending on the parametric space. In some cases, we prove that local asymptotic stability of the unique equilibrium point implies global asymptotic stability.

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A Class Of Finite Difference Schemes For Singularly Perturbed Delay Differential Equations Of Second Order, Pramod Chakravarthy Podila, Kamalesh Kumar Jan 2019

A Class Of Finite Difference Schemes For Singularly Perturbed Delay Differential Equations Of Second Order, Pramod Chakravarthy Podila, Kamalesh Kumar

Turkish Journal of Mathematics

In this paper, we proposed a new class of finite difference schemes for solving singularly perturbed delay differential equation of second order. The proposed schemes are oscillation-free and more accurate than conventional schemes on a uniform mesh. These schemes are easily adaptable on special meshes like Shishkin mesh or Bakhvalov mesh and are uniformly convergent with respect to the perturbation parameter. The error analysis has been carried out and numerical examples are presented to show the accuracy and efficiency of the proposed schemes.

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Quantum Integral Equations Of Volterra Type In Terms Of Discrete-Time Normal Martingale, Jinshu Chen, Yuling Tang Jan 2019

Quantum Integral Equations Of Volterra Type In Terms Of Discrete-Time Normal Martingale, Jinshu Chen, Yuling Tang

Turkish Journal of Mathematics

In this paper, we aim to introduce a quantum linear stochastic Volterra integral equation of convolution type with operator-valued kernels in a nuclear topological algebra. We first establish the existence and uniqueness of the solutions and give the explicit expression of the solutions. Then we prove the continuity, continuous dependence on free terms and other properties of the solution.

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On Isotropic Projective Ricci Curvature Of C-Reducible Finsler Metrics, Laya Ghaemnezhad, Bahman Rezaei, Mehran Gabrani Jan 2019

On Isotropic Projective Ricci Curvature Of C-Reducible Finsler Metrics, Laya Ghaemnezhad, Bahman Rezaei, Mehran Gabrani

Turkish Journal of Mathematics

Projective Ricci curvature is a projective invariant quantity in Finsler geometry which is introduced by Z. Shen. In this paper, we study special projective Ricci curvature of C-reducible Finsler metrics. The necessary and sufficient conditions of these metrics, which cause these metrics to be weak or isotropic projective Ricci curvature, are found and it is proved that C-reducible Douglas metric of isotropic PRic-curvature must be PRic flat. The same theorem for C-reducible metrics of scalar flag curvature is also investigated.

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Positivity Of Continuous Time Irregular Linear Descriptor Systems, Mahmoud Mansouri, Kameleh Nassiri Jan 2019

Positivity Of Continuous Time Irregular Linear Descriptor Systems, Mahmoud Mansouri, Kameleh Nassiri

Turkish Journal of Mathematics

The positivity of continuous-time irregular linear descriptor systems is investigated in this study. The present method is introduced based on Weierstrass decomposition. We obtain necessary and sufficient conditions for the positivity of the linear irregular descriptor systems. The conditions are investigated by two examples with Simulink/MATLAB.

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Sherman's Inequality And Its Converse For Strongly Convex Functions Withapplications To Generalizedf-Divergences, Slavica Ivelic Bradanovic Jan 2019

Sherman's Inequality And Its Converse For Strongly Convex Functions Withapplications To Generalizedf-Divergences, Slavica Ivelic Bradanovic

Turkish Journal of Mathematics

Considering the weighted concept of majorization, Sherman obtained generalization of majorization inequality for convex functions known as Sherman's inequality. We extend Sherman's result to the class of n-strongly convex functions using extended idea of convexity to the class of strongly convex functions. We also obtain upper bound for Sherman's inequality, called the converse Sherman inequality, and as easy consequences we get Jensen's as well as majorization inequality and their conversions for strongly convex functions. Obtained results are stronger versions for analogous results for convex functions. As applications, we introduced a generalized concept of f-divergence and derived some reverse relations for …

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Synthesis, Characterization, And Magnetic Properties Of Nanosizedzn0.5co0.5erxfe2-Xo4 Prepared By Coprecipitation Method, Zouheir Bitar, Doaa El-Said Bakeer, Ramadan Awad Jan 2019

Synthesis, Characterization, And Magnetic Properties Of Nanosizedzn0.5co0.5erxfe2-Xo4 Prepared By Coprecipitation Method, Zouheir Bitar, Doaa El-Said Bakeer, Ramadan Awad

Turkish Journal of Physics

In the present work, the effect of doping zinc cobalt ferrite by different concentrations of Er3+ on structural, optical, and magnetic properties was studied. Nanosized Zn0.5Co0.5ErxFe2-xO4 (0 ≤ x ≤ 0.2) was synthesized by the coprecipitation method. XRD analysis confirmed the formation of one phase face FCC spinel structure belonging to the Fd3m space group. TEM exhibited that the particle size decreased with the increase of Er3+ content, which is in agreement with XRD results. Two significant absorption bands from FTIR spectra were observed between 400 and 600 cm-1. The band gap energy value obtained from UV-Vis increased with the …

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Determination Of Fluence Rate Distribution In A Multilayered Skin Tissue Model Byusing Monte Carlo Simulations, Hali̇l Arslan, Bahar Pehli̇vanöz Jan 2019

Determination Of Fluence Rate Distribution In A Multilayered Skin Tissue Model Byusing Monte Carlo Simulations, Hali̇l Arslan, Bahar Pehli̇vanöz

Turkish Journal of Physics

Information on light-tissue interaction is important for clinical applications of lasers. The Monte Carlo technique is one of the commonly used methods to simulate photon propagation and to describe energy absorption in biological tissues. In this study, fluence rate distributions of 633 nm and 830 nm light inside a multilayered skin tissue model have been investigated by using two different simulation software programs: GAMOS tissue optics plug-in and MCML. Results of the plug-in for the fluence rate distributions are in very good agreement with the ones from MCML for both of the wavelengths. This shows that GAMOS tissue optics plug-in …

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A Hard X-Ray Self-Amplified Spontaneous Emission Free-Electron Laser Optimization Using Evolutionary Algorithms For Dedicated User Applications, Di̇dem Ketenoğlu, Gazi̇ Erkan Bostanci, Ayhan Aydin, Bora Ketenoğlu Jan 2019

A Hard X-Ray Self-Amplified Spontaneous Emission Free-Electron Laser Optimization Using Evolutionary Algorithms For Dedicated User Applications, Di̇dem Ketenoğlu, Gazi̇ Erkan Bostanci, Ayhan Aydin, Bora Ketenoğlu

Turkish Journal of Physics

Accelerator-based fourth-generation light sources are utilized in a wide range of interdisciplinary applications such as nanotechnology, materials science, biosciences, and medicine. A hard X-ray free-electron laser (FEL), as a state-of-the-art light source, was optimized using evolutionary algorithms for dedicated user applications such as X-ray Raman scattering (XRS), resonant inelastic X-ray scattering (RIXS), and X-ray emission spectroscopies (XES). Optimal parameter sets were obtained for an in-vacuum planar undulator driven by an 8 GeV electron beam. Performance parameters of self-amplified spontaneous emission (SASE) operation (i.e. optimized SASE performance parameters through evolutionary algorithms) were found to be consistent with operating X-ray FEL facilities …

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An Ambient Assisted Living System For Dementia Patients, Özgün Yilmaz Jan 2019

An Ambient Assisted Living System For Dementia Patients, Özgün Yilmaz

Turkish Journal of Electrical Engineering and Computer Sciences

Dementia is a major health and social care challenge of today and the near future as a result of increased human lifespan. Currently, there is no therapeutic solution for dementia, but a solution for managing the wandering behavior of dementia patients can be provided by an ambient assisted living system. In this paper, the design and implementation of iCarus, which is an intelligent ambient assisted living system for dealing with wandering behavior in early stages of dementia, is described. The aim of iCarus is to provide independent living for elderly people and a cost-effective way of monitoring them. iCarus is …

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Spatial-Aware Global Contrast Representation For Saliency Detection, Dan Xu, Shucheng Huang, Xin Zuo Jan 2019

Spatial-Aware Global Contrast Representation For Saliency Detection, Dan Xu, Shucheng Huang, Xin Zuo

Turkish Journal of Electrical Engineering and Computer Sciences

Deep learning networks have been demonstrated to be helpful when used in salient object detection and achieved superior performance than the methods that are based on low-level hand-crafted features. In this paper, we propose a novel spatial-aware contrast cube-based convolution neural network (CNN) which can further improve the detection performance. From this cube data structure, the contrast of the superpixel is extracted. Meanwhile, the spatial information is preserved during the transformation. The proposed method has two advantages compared to the existing deep learning-based saliency methods. First, instead of feeding the deep learning networks with raw image patches or pixels, we …

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