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Journal of Earth Science 2024年第2期35卷 394-415页

作者： Cengiz Okuyucu U.Kagan Tekin Cagri Guzgun kaan Sayit Department of Geological Engineering Konya Technical UniversityKonya42250Turkey Department of Geological Engineering Hacettepe UniversityAnkara06800Turkey Department of Geological Engineering Middle East Technical UniversityAnkara06800Turkey

The Beyşehir-Hoyran Nappes,one of the tectonostratigraphic units of the Taurides,are thought to be originated from the Izmir-Ankara Ocean(northern branch of Neotethys).In this study,Late Paleozoic rock units from the blocks of Beyşehir-Hoyran Nappes were studied in detail using foraminiferal assemblages in two different locations from the southwest of Karaman City(southern Turkey).In both places,blocks/slices and pebbles of various origins are embedded within a highly sheared matrix of Late Cretaceous Age,and the whole unit can be regarded as a sedimentary mé*** ages of the blocks from the southwest of Karaman City range from the Late Serpukhovian(Late Mississippian)to Late Capitanian(Middle Permian)with some depositional breaks(e.g.,Bashkirian,Kasimovian).Combined with the previous data from the Mersin Mélange,which also include the remnants of the Beyşehir-Hoyran Nappes,our new findings suggest that a shallowing-upward sequence,characterized by a shallow water environment with foraminifera-bearing limestones,was deposited over the Tournaisian pelagic sequence in the Beyşehir-Hoyran Nappes till the Early Moscovian(Early Middle Pennsylvanian).This shallowing-upward sequence in the Beyşehir-Hoyran Nappes could be related to the Late Paleozoic Glaciation on the Gondwana supercontinent(Glacial Ⅱ),which resulted in a sea-level drop and deposition of platform carbonates during the Viséan–Early Moscovian(Middle Mississippian to Early Middle Pennsylvanian)time *** absence of the main part of the Middle-Upper Pennsylvanian deposits(continental phase during the Middle Moscovian–Middle Gzhelian)in the Beyşehir-Hoyran Nappes can be mainly attributed to the occurrence of a mantle plume and partially to the effect of Late Paleozoic Gondwanan Glaciation(Glacial Ⅲ).Progressive uplifting by the buoyant mantle plume material has resulted in rifting at the center of the basin where the Beyşehir-Hoyran Nappes have *** rifting process led to tectonic destabiliz

关键词： foraminifera Carboniferous and Permian Beyşehir-Hoyran Nappes plume rifting Neotethys paleontology

Prediction of the undrained shear strength of remolded soil with non-linear regression,fuzzy logic,and artificial neural network

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Journal of Mountain Science 2024年第9期21卷 3108-3122页

作者： YÜNKÜL kaan KARAÇOR Fatih GÜRBÜZ Ayhan BUDAK TahsinÖmür Department of Civil Engineering Faculty of Engineering and ArchitectureTokat Gaziosmanpaşa UniversityTokat 60100Türkiye Department of Civil Engineering Faculty of Engineering and ArchitectureKafkas UniversityKars 36000Türkiye Department of Civil Engineering Faculty of EngineeringGazi UniversityAnkara 06570Türkiye Ministry of Youth and Sports Ankara 06090Türkiye

This study aims to predict the undrained shear strength of remolded soil samples using non-linear regression analyses,fuzzy logic,and artificial neural network modeling.A total of 1306 undrained shear strength results from 230 different remolded soil test settings reported in 21 publications were collected,utilizing six different measurement *** water content,plastic limit,and liquid limit were used as input parameters for fuzzy logic and artificial neural network modeling,liquidity index or water content ratio was considered as an input parameter for non-linear regression *** non-linear regression analyses,12 different regression equations were derived for the prediction of undrained shear strength of remolded ***-Forward backpropagation and the TANSIG transfer function were used for artificial neural network modeling,while the Mamdani inference system was preferred with trapezoidal and triangular membership functions for fuzzy logic *** experimental results of 914 tests were used for training of the artificial neural network models,196 for validation and 196 for *** was observed that the accuracy of the artificial neural network and fuzzy logic modeling was higher than that of the non-linear regression ***,a simple and reliable regression equation was proposed for assessments of undrained shear strength values with higher coefficients of determination.

关键词： Undrained shear strength Liquidity index Water content ratio Non-linear regression Artificial neural networks Fuzzy logic

All-optical image denoising using a diffractive visual processor

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Light(Science & Applications) 2024年第3期13卷 429-445页

作者： Çağatay Işıl Tianyi Gan Fazil Onuralp Ardic Koray Mentesoglu Jagrit Digani Huseyin Karaca Hanlong Chen Jingxi Li Deniz Mengu Mona Jarrahi kaan Akşit Aydogan Ozcan Electrical and Computer Engineering Department University of CaliforniaLos AngelesCA 90095USA Bioengineering Department University of CaliforniaLos AngelesCA 90095USA California NanoSystems Institute(CNSI) University of CaliforniaLos AngelesCA 90095USA University College London Department of Computer ScienceLondonUnited Kingdom

Image denoising,one of the essential inverse problems,targets to remove noise/artifacts from input *** general,digital image denoising algorithms,executed on computers,present latency due to several iterations implemented in,e.g.,graphics processing units(GPUs).While deep learning-enabled methods can operate non-iteratively,they also introduce latency and impose a significant computational burden,leading to increased power ***,we introduce an analog diffractive image denoiser to all-optically and non-iteratively clean various forms of noise and artifacts from input images–implemented at the speed of light propagation within a thin diffractive visual processor that axially spans<250×λ,whereλis the wavelength of *** all-optical image denoiser comprises passive transmissive layers optimized using deep learning to physically scatter the optical modes that represent various noise features,causing them to miss the output image Field-of-View(FoV)while retaining the object features of *** results show that these diffractive denoisers can efficiently remove salt and pepper noise and image rendering-related spatial artifacts from input phase or intensity images while achieving an output power efficiency of~30–40%.We experimentally demonstrated the effectiveness of this analog denoiser architecture using a 3D-printed diffractive visual processor operating at the terahertz *** to their speed,power-efficiency,and minimal computational overhead,all-optical diffractive denoisers can be transformative for various image display and projection systems,including,e.g.,holographic displays.

关键词： remove rendering holographic

Alternating Cell Direction Implicit Method using Approximate Factorization on Hybrid Grids

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Advances in Applied Mathematics and Mechanics 2022年第3期14卷 539-576页

作者： ali Ruhsen Cete Oguz kaan Onay Adana Alparslan Turke¸s Science and Technology University AdanaTurkey Middle East Technical University AnkaraTurkey

In this study,a novel fast-implicit iteration scheme called the alternating cell direction implicit(ACDI)method is combined with the approximate factorization *** application aims to offer a mathematically well-deﬁned version of the ACDI method and to increase the accuracy of the iteration scheme used for the nu-merical solutions of partial differential *** ACDI method is a fast-implicit method that can be used for unstructured *** use of fast implicit iteration meth-ods with unstructured grids is not common in the *** new ACDI method has been applied to the unsteady diffusion equation to determine its convergence and time-dependent solution ability and *** numerical tests are conducted for different grid types,such as structured,unstructured quadrilateral,and hybrid polygonal ***,the ACDI was applied to the unsteady advection-diffusion equation to understand the time-dependent and progression capabilities of the pre-sented ***,a full potential equation solution is created to understand the complexﬂow solving ability of the presented *** results of the numerical study are compared with other fast implicit methods,such as the point Gauss–Seidel(PGS)and line Gauss–Seidel(LGS)methods and the fourth-order Runge-Kutta(RK4)method,which is an explicit scheme,and the Laasonen method,which is a fully im-plicit *** study increased the abilities of the ACDI *** to the new ACDI method,the approximate factorization method,which is used only in structural grids that are known to be advantageous,can be applied to any mesh structure.

关键词： Approximate factorization ACDI method fast implicit schemes

EOS of neutron-rich matter and pure neutron matter

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Science China(Physics,Mechanics & Astronomy) 2012年第3期55卷 443-449页

作者： MANISA kaan Physics Department Dumlupinar UniversityKütahya 43100Turkey

We report the equation of state(EOS) of pure neutron matter(PNM) and neutron-rich matter(NRM) for the realistic Urbana V 14 two nucleon interaction,obtained by using a Variational Monte Carlo(VMC) ***,many body interactions are included as a phenomenological density dependent term in the *** binding energy per nucleon is calculated for different densities and various isospin asymmetry *** results on NRM and PNM are compared with relativistic Brueckner-Hartree-Fock theory and relativistic Hartree-Fock model with the unitary correlation operator *** results obtained in this study show reasonable agreement with both of these relativistic Hartree-Fock *** also compare the binding energies obtained in this study with those obtained by various authors employing different methods and techniques.

关键词： nuclear structure nuclear forces nuclear matter nuclear matter aspects of neutron stars

Electrophysiological evaluation of alterations in penile sensation due to penile prosthesis implantation in patients with erectile dysfunction

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Asian Journal of Urology 2023年第4期10卷 541-545页

作者： İbrahim Erol ali Yıldız kaan Karamık Hakan Anıl Ekremİslamoğlu TuncayÇakır Mutlu Ateş Murat Savaş Department of Urology Antalya Training and Research HospitalUniversity of Health SciencesAntalyaTurkey Department of Physical Medicine and Rehabilitation Antalya Training and Research HospitalUniversity of Health SciencesAntalyaTurkey

Objective The present study was aimed to determine the effect of penile prosthesis implantation(PPI)surgery on penile sensation by evaluating the penile electromyography(EMG)*** The research was designed as a prospective *** patients who were diagnosed with organic erectile dysfunction and had underwent PPI surgery between January 2017 and January 2018 in the Urology Clinic of Antalya Training and Research Hospital were included in this *** sensory EMG was performed on each patient 1 day prior to the surgery by the Physical Therapy and Rehabilitation ***,the control EMG study was also performed in the 3rd and 6th postoperative *** We included 27 patients in this study who attended regular follow-ups and had complete EMG *** of the 27 patients,23(85.2%)patients had received malleable(ProMedon)penile prosthesis,one(3.7%)patient had received a two-piece inflatable(Ambicor)penile prosthesis,and three(11.1%)patients had received a three-piece inflatable(AMS 700 CXR)penile *** mean nerve conduction value(NCV)of the patients was 29.85(standard derivation:22.54;range:0-78.4)m/s during the preoperative period,whereas it was 27.64(standard derivation:24.72;range:0-83.3)m/s in the 3rd postoperative month and 24.80(standard derivation:22.31;range:0-88.4)m/s in the 6th postoperative *** was no significant difference between preoperative NCV and 3rd postoperative month NCV(p=0.607).Similarly,no significant difference was observed between preoperative NCV and 6th postoperative month NCV(p=0.276).Additionally,the change between NCV values at postoperative 3rd and 6th months was not statistically significant(p=0.553).Conclusion Significant loss of penile sensation does not occur in patients who undergo PPI surgery.

关键词： Penile prosthesis Penile sensation Electromyography Erectile dysfunction

An adaptive Markov chain algorithm applied over map-matching of vehicle trip GPS data

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Geo-Spatial Information Science 2021年第3期24卷 484-497页

作者： Bilge kaan Karamete Louai Adhami Eli Glaser Engineering GeospatialKinetica DB IncArlingtonVAUSA

Markov chains have frequently been applied to match the probable routes with a set of GPS trip data that a pilot vehicle is emitting over a specific graph road network. This class of mapmatching (MM) algorithms presently demonstrates and involve statistical and ad-hoc measures to drive the Markov chain transitional probabilities in picking the best route combinations constrained over the graph road network. In this study, we have devised an adaptive scheme to modify the Markov Chain (MC) kernel window as we move along the GPS samples to reduce the mistakes that can happen by the use of narrower MC widths. The measure for temporarily increasing the MC window width is chosen to be the ratio between the geodesic distance of current route to the actual geodesic distance between each pair of GPS samples. This adaptive use of MC has shown to have hardened the results significantly with tolerable computational cost increase. The details of the overall algorithm are depicted by the example routes extracted from various vehicle trips and the results are shown to validate the usefulness of the algorithm in practice.

关键词： Hidden Markov chain(HMC) map-matching(MM) graph networks

Are radiological modalities really necessary for the long-term follow-up of patients having blunt solid organ injuries? A single center study

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World Journal of Emergency Medicine 2019年第3期10卷 177-181页

作者： Mehmet Ilhan Recep Ercin Sonmez Abdullah Kut Safa Toprak ali Fuat kaan Gok Mustafa Kaylhan Günay Cemalettin Ertekin Department of General Surgery Istanbul University Istanbul Medical Faculty Istanbul Turkey Department of General Surgery Istanbul Medeniyet University Istanbul Turkey

Dear editor, During the past two decades, management of blunt solid organ injuries had shifted from conventional surgery to more conservative approach, namely nonoperative management (NOM).[1] The non-operative approach mainly depends on the trauma experience of surgeons and the institution, quality of radiographic imaging and its interpretation.[2-5] If the surgeon decides to observe the patients by NOM, close monitoring of vital signs and frequent physical examinations must be done accordingly with radiological evaluations if needed.

关键词： Dear editor two decades namely nonoperative management

Dual-Port Content Addressable Memory for Cache Memory Applications

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Computers, Materials & Continua 2022年第3期70卷 4583-4597页

作者： Allam Abumwais Adil Amirjanov kaan Uyar Mujahed Eleyat Department of Computer Engineering Near East UniversityNicosiaN.Cyprus via Mersin-10Turkey Computer Systems Engineering Arab American UniversityJenin240Palestine

Multicore systems oftentimes use multiple levels of cache to bridge the gap between processor and memory *** paper presents a new design of a dedicated pipeline cache memory for multicore processors called dual port content addressable memory(DPCAM).In addition,it proposes a new replacement algorithm based on hardware which is called a near-far access replacement algorithm(NFRA)to reduce the cost overhead of the cache controller and improve the cache access *** experimental results indicated that the latency for write and read operations are significantly less in comparison with a set-associative cache ***,it was shown that a latency of a read operation is nearly constant regardless of the size of ***,an estimation of the power dissipation showed that DPCAM consumes about 7%greater than a set-associative cache memory of the same *** results encourage for embedding DPCAM within the multicore processors as a small shared cache memory.

关键词： Multicore system content addressable memory dual port CAM cache controller set-associative cache power dissipation