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SOME TOPOLOGICAL AND GEOMETRICAL PROPERTIES OF THE SEQUENCE SPACE e^r (u, p)

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Acta Mathematica Scientia 2012年第4期32卷 1513-1528页

作者： serkan demiriz Celal Çakan Department of Mathematics Faculty of Arts and ScienceGaziosmanpasa University60250-TokatTurkey Faculty of Education Ínönü University44280-MalatyaTurkey

In this paper, we introduce the sequence space e^r（u,p） and investigate its some topological and geometrical properties such as basis, α-,β-, γ- duals and the uniform Opial property.

关键词： paranormed sequence spaces matrix transformations Luxemburg norm anduniform Opial property

Effect of recycled brick powder on the properties of selfcompacting fiber reinforced mortars produced with different cement types

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Frontiers of Structural and Civil Engineering 2024年第5期18卷 743-759页

作者： serkan ETLI Department of Civil Engineering Kahramanmaras Sutcu Imam UniversityKahramanmaraş46040Turkey

It is known that clay-based building materials such as bricks and tiles accumulate in landfills at the end of their useful *** an alternative,recycling clay-based building material can reduce the negative environmental *** brick powder(RBP)is obtained by grinding waste brick and tile collected from end-of-life *** the scope of the study,the use of self-compacting fiber reinforced mortars(SCFRMs)produced with RBP using CEM-I 42.5R and 52.5R class cements for two different cement classes was *** accordance with EFNARC,a water binding ratio of 0.42 was used to control the workability and strength of the *** the produced SCFRM,1%,2%,and 3%by weight binder Polypropylene(PP)fiber was added to the blends with 10%,20%,and 30%RBP substitutes.A total of 32 SCFRM mixes were produced and *** flexural and compressive strengths at 7,28,56,and 90 d were evaluated on the produced *** addition,porosity and water absorbency values were examined since these are significant for durability *** was observed that the use of RBP increases durability,and the use of fiber can have positive effects in terms of both durability and strength.

关键词： cement strength tile/brick dust self-compacting fiberized mortar

[ℓ_(p)]_(e.r) Euler-Riesz Difference Sequence Spaces

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Analysis in Theory and Applications 2021年第4期37卷 557-571页

作者： Hacer Bilgin Ellidokuzoglu serkan demiriz Department of Mathematics Recep Tayyip Erdo˘gan UniversityRizeTurkey Department of Mathematics Tokat Gaziosmanpa¸sa UniversityTokatTurkey

Bas¸ar and Braha[1],introduced the sequence spaces˘ℓ_(∞),c˘and c˘0 of EulerCesaro bounded,convergent and null difference sequences and studied their some´***,in[2],we introduced the sequence spaces[ℓ_(∞)]_(e.r),[c]_(e.r)and[c_(0)]_(e.r)of Euler-Riesz bounded,convergent and null difference sequences by using the composition of the Euler mean E1 and Riesz mean Rq with backward difference operator∆.The main purpose of this study is to introduce the sequence space[ℓ_(p)]_(e.r)of Euler-Riesz p−absolutely convergent series,where 1≤p<∞,difference sequences by using the composition of the Euler mean E1 and Riesz mean Rq with backward difference operator∆.Furthermore,the inclusionℓ_(p)⊂[ℓ_(p)]_(e.r)hold,the basis of the sequence space[ℓ_(p)]_(e.r)is constucted andα−,β−andγ−duals of the space are ***,the classes of matrix transformations from the[ℓ_(p)]_(e.r)Euler-Riesz difference sequence space to the spacesℓ_(∞),c and c0 are *** devote the final section of the paper to examine some geometric properties of the space[ℓ_(p)]_(e.r).

关键词： Composition of summability methods Riesz mean of order one Euler mean of order one backward difference operator sequence space BK space Schauder basis β−duals matrix transformations

Analysis of a New Toothbrushing Technique through Plaque Removal Success

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Open Journal of Stomatology 2024年第3期14卷 133-152页

作者： Elhadi A. A. Shkorfu serkan Kurt Fatih Atalar Ali Olamat Aysel Ersoy Department of Electrical and Electronic Engineering Istanbul University-Cerrahpa&scedila Avc&imathlar Istanbul Türkiye Department of Electronics and Communication Engineering Y&imathld&imathz Technical University Istanbul Türkiye Department of Bioengineering Y&imathld&imathz Technical University Istanbul Türkiye

Background/Aims: Determining the levels of oral health and the quality of dental care are fundamental to building concepts of oral health. This study aims to assess toothbrushing techniques using a technical and physical model, clarifying how children and pre-adults learn to brush their teeth. Materials and Methods: Data were recorded from 23 participants, both male and female of various ages, using a proposed electronic toothbrush equipped with X-Y-Z axes pathways. The data, collected before and after training experiments, were processed with MATLAB to generate plots for the three axes. Results: The study revealed that most parameter values, such as Mean Difference Between Amplitudes (MAV, 6.00), Wilson Amplitude (WAMP, 179.419), and Average Amplitude Coupling (AAC, 1.270), decreased from before to after the experiments. Furthermore, the average overall epoch lengths (AVG) showed a 75% reduction in movement amplitude between the two experiments. Conclusion: Dentist observations indicated which brushing methods were acceptable or not. Analytical values suggest that individuals learn the toothbrushing technique effectively, and medical observations clearly demonstrate the success of the proposed method.

关键词： Techno-Physical Toothbrushing Oral Hygiene Education Dental Technology Plaque Analysis

Erratum to “Plant Defense against Necrotrophic Pathogens” [American Journal of Plant Sciences 11(12) (2020) 2122-2138]

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American Journal of Plant Sciences 2024年第2期15卷 122-138页

作者： Mahmoud H. Ghozlan Nikita Gambhir Eman EL-Argawy serkan Tokgöz Dilip K. Lakshman Amitava Mitra University of Nebraska Lincoln NE USA USDA-ARS Beltsville MD USA

The original online version of this article (Ghozlan, M.H., EL-Argawy, E., Tokgöz, S., Lakshman, D.K. and Mitra, A. (2020) Plant Defense against Necrotrophic Pathogens. American Journal of Plant Sciences, 11, 2122-2138. https://***/10.4236/ajps.2020.1112149) was published mistakenly without another co-author, Nikita Gambhir. In this regard, we revise authors and “how to cite” sections by adding her name.

关键词： Effectors Host Immunity Signaling P/MAMP ETI Disease Resistance

RELIABILITY OF LINEAR (n,f,k) SYSTEMS WITH WEIGHTED COMPONENTS

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Journal of Systems Science and Systems Engineering 2010年第3期19卷 277-284页

作者： serkan ERYILMAZ Timur AKSOY Department of Mathematics Izmir University of Economics Faculty of Computer Science and Engineering Sabanci University

The （n,f, k）： F（G） system consists ofn components and the system fails （works） if and only if there are at least flailed （working） components or at least k consecutive failed （working） components. These system models can be used in electronic equipment, automatic payment systems in banks, and furnace systems. In this paper we introduce and study the （n, f, k）：F and （n, f, k）： G systems consisting of weighted components. Recursive equations are presented for reliability evaluation of these new models. We also provide some conditions on the weights to represent weighted-（n,f, k） systems as usual （n,f, k） systems.

关键词： Consecutive-weighted-k-out-of-n systems system reliability weighted-k-out-of-n systems weighted-(n,f k) systems

Theoretical demonstration of the hybrid focusing points of sonic crystal flat lenses and possible applications

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Chinese Physics B 2013年第7期22卷 393-399页

作者： serkan Alagoz Baris Baykant Alagoz Department of Physics Inonu University Department of Electric-Electronics Inonu University

We demonstrate the hybrid focusing points of sonic crystals for a multi-source array applied to flat sonic crystal lenses. The contributions of different point source couples form hybrid focusing points. Ray-trace analyses are conducted for acoustic flat lenses with multi-source configurations. The finite-difference time-domain （FDTD） simulation of flat lenses with multi-source configurations demonstrates the establishment of pure and hybrid focusing points in a pyramidal constellation. The number of focusing points in the pyramidal constellation depends on the number of point sources. We propose an acoustic device for fine-tuning the location of a far-field hybrid focusing point and discuss its benefits for acoustic energy focusing application.

关键词： negative refraction sonic crystal metamaterials wave focusing acoustic flat lens

Management of floor heave at Bulga Underground Operations – A case study

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International Journal of Mining Science and Technology 2019年第1期29卷 73-78页

作者： Sungsoon Mo Kudret Tutuk serkan Saydam School of Minerals and Energy Resources Engineering The University of New South Wales Glencore Coal Assets Australia

This paper presents an overview of the floor heave management at the Glencore Bulga Underground Operations and investigates the contributing factors to the behaviour of the floor. The mine experienced a number of major floor heave events in gateroads on development. As the longwall face approached the roadways, the magnitude of floor heave frequently increased, while new floor heave also ***, severe floor heave events took place along the longwall face. The most observed failure mode was buckling. While regular floor measurements were conducted to better understand the nature of the phenomenon, and various measures were considered to control the deformation of floor, the mining height was increased for the predicted floor heave domains, which facilitated effective management of the floor issues. The experience in the mine indicates that mainly high horizontal stresses with greater depths of cover and certain types of floor lithology configuration are likely to contribute to the failures of floor strata.

关键词： Floor heave Floor failure Buckling Failure mechanism

SYNTHESIS,CHARACTERIZATION AND SELECTIVITY STUDIES OF POLY(ACRYLAMIDE) INCORPORATING SCHIFF BASES

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Chinese Journal of Polymer Science 2009年第5期27卷 675-683页

作者： Nursen Sari serkan zcan Department of Chemistry Faculty of ScienceGazi University

Three novel polymers incorporating Schiff bases,derived from condensation reactions of poly(acrylamide) with 5- chloro-2-hydroxybenzaldehyde,5-bromo-2-hydroxybenzaldehyde and 5-methyl-2-hydroxybenzaldehyde,have been synthesized,and their Cu(Ⅱ) and Ni(Ⅱ) complexes have been *** ~1H-NMR signals of the—CH=N—and—NH_2 groups have been utilized to determine the relative abundances of Schiff base and acrylamide groups in the polymers containing Schiff ***(acrylamide) incorporating Schiff bases and ...

关键词： Selectivity Incorporating Schiff bases Conductivity.