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Impact of different sampling rates on precise point positioning performance using online processing service

Geo-Spatial Information Science 2021年第2期24卷 302-312,I0008页

作者： Serdar Erol Reha metin Alkan İ.Murat Ozulu Veli Ilçi Department of Geomatics Engineering Istanbul Technical UniversityIstanbulTurkey Department of Technical Programs Hitit UniversityÇorumTurkey Department of Geomatics Engineering Ondokuz Mayıs UniversitySamsunTurkey

In this study,the effect of different sampling rates(*** recording interval)on the Precise Point Positioning(PPP)solutions in terms of accuracy was *** this purpose,a field test was carried out inÇorum province,Turkey,on 11 September *** this context,a Geodetic Point(GP)was established and precisely coordinated.A static GNSS measurement was occupied on the GP for about 4-hour time at 0.10 second(s)/10 Hz measurement intervals with the Trimble R10 geodetic grade GNSS *** original observation file was converted to RINEX format and then decimated into the different data sampling rates as 0.2 s,0.5 s,1 s,5 s,10 s,30 s,60 s,and 120 *** these RINEX observation files were submitted to the Canadian Spatial Reference System-Precise Point Positioning(CSRS-PPP)online processing service the day after the data collection date by choosing both static and kinematic processing *** this way,PPP-derived static coordinates,and the kinematic coordinates of each measurement epoch were *** PPP-derived coordinates obtained from each decimated sampling intervals were compared to known coordinates of the GP for northing,easting,2D position,and height *** to the static and kinematic processing results,high data sampling rates did not change the PPP solutions in terms of accuracy when compared to the results obtained using lower sampling *** results of this study imply that it was not necessary to collect GNSS data with high-rate intervals for many surveying projects requiring cm-level accuracy.

关键词： Precise Point Positioning(PPP) online GNSS postprocessing service high-rate GNSS sampling rate monitoring structure behavior

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Assessing the publication output in the field of forensic science and legal medicine using Web of Science database from 2011 to 2020

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Forensic Sciences Research 2022年第4期7卷 748-760页

作者： Bedirhan Sezer Öner metin Orbay Department of Forensic Medicine Faculty of MedicineAmasya UniversityAmasyaTurkey Department of Mathematics and Science Faculty of EducationAmasya UniversityAmasyaTurkey

The aim of this study was ***,it analyzed the characteristics of the publication outputs for the Legal Medicine(LM)category using the Web of Science(WoS)database during ***,it discussed the distribution of the papers for the 25 most productive countries/regions in terms of quality and quantity,such as the h-index and GDP per ***,it investigated the trend and temporal stability of the journal impact factor(JIF)and determined the percentage of the journal *** findings suggested that the number of papers,the average number of pages of the papers,the average number of cited references in the papers,the average number of authors per paper,the percentage of open access papers,as well as international and domestic collaboration tended to increase ***,the productivity was limited when compared to the whole WoS database,since there was no significant change in the number of the *** countries/regions with the highest number of publications were not those that made the most impact in terms of the widespread impact of the *** level of international cooperation and the funding for the research had dramatic impact on the visibility of *** average JIF has increased significantly while the journal self-citation rates have decreased in a similar *** journals have had very stable(have not fluctuated)impact factors over *** the period studied,the journals with the higher impact factors(Q1,Q2)published many more papers than journals with the lower impact factors(Q3,Q4).

关键词： Bibliometrics citation analysis forensic science legal medicine Web of Science

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A Biomimetic Climbing Robot Based on the Gecko

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Journal of Bionic Engineering 2006年第3期3卷 115-125页

作者： Carlo Menon metin Sitti Carnegie Mellon University Pittsburgh Pennsylvania 15213-389 USA

The excellent climbing performance of the gecko is inspiring engineers and researchers for the design of artificial systems aimed at moving on vertical surfaces. Climbing robots could perform many useful tasks such as surveillance, inspection, repair, cleaning, and exploration. This paper presents and discusses the design, fabrication, and evaluation of two climbing robots which mimic the gait of the gecko. The first robot is designed considering macro-scale operations on Earth and in space. The second robot, whose motion is controlled using shape memory alloy actuators, is designed to be easily scaled down for micro-scale applications. Proposed bionic systems can climb up 65 degree slopes at a speed of 20 mm·s^-1.

关键词： gecko robotics biomimetics climbing space memory alloy

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Temperature and Thickness Effects on Electrical Properties of InP Films Deposited by Spray Pyrolysis

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Chinese Physics Letters 2009年第1期26卷 260-263页

作者： Refik Kayah Mehmet An Mustafa Oztas metin Bedir Funda Aksoy Department of Physics Arts and Sciences Faculty Nigde University Nigde Turkey Department of Physics Arts and Sciences Faculty Erciyes University Kayseri Turkey Department if Physics and Engineering Engineering Faculty Gaziantep University Gaziantep Turkey

InP film samples are prepared by spray pyrolysis technique using aqueous solutions of InCl3 and Na2HPO4, which are atomized with compressed air as carrier gas onto glass substrates at 500° C with different thicknesses of the films. The structural properties of the samples are determined by x-ray diffraction （XRD）. It is found that the crystal structure of the InP films is polycrystalline hexagonal. The orientations of all the obtained films are along the c-axis perpendicular to the substrate. The electrical measurements of the samples are obtained by dc four-probe technique on rectangular-shape samples. The effects of temperature on the electrical properties of the InP films are studied in detail.

关键词： THIN-FILMS BEAM EPITAXY SOLAR-CELLS GROWTH-RATE DEPENDENCE solar cells thickness-effect electrical properties Temperature Indium phosphide Films Growth rate spray pyrolysis DEPENDENCE

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Inhomogeneous Quantum Invariance Group of Multi-Dimensional Multi-parameter Deformed Boson Algebra

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Chinese Physics Letters 2012年第1期29卷 8-10页

作者： Azmi Ali Altintas metin Arik Ali Serdar Arikan Emre Dil Faculty of Engineering Okan UniversityTuzlaIstanbulTurkey Department of Physics Boğazici UniversityBebekIstanbulTurkey Department of Physics Sakarya UniversityEsentepeSakaryaTurkey

We investigate the inhomogeneous invariance quantum group of the d-dimensional d-parameter deformed boson *** is found that the homogeneous part of this quantum group is given by the𝑑-parameter deformed general linear *** construct the d-matrix which collects all information about the non-commuting structure of the quantum group for the two-dimensional case.

关键词： group. algebra. parameter

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Characterization of Undoped and Cu-Doped ZnO Thin Films Deposited on Glass Substrates by Spray Pyrolysis

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Chinese Physics Letters 2006年第4期23卷 939-942页

作者： metin Bedir Mustafa Oztas A. Necmeddin Yazici E. Vural Kafadar Department of Engineering Physics University of Gaziantep Gaziantep 27310 Turkey

Undoped and copper doped zinc oxide （ZnO） thin films have been prepared on glass substrates by spray pyrolysis technique. The films were doped with copper using the direct method by addition of a copper salt （CuCl2） in the spray solution of ZnO. Variation of structural, electrical, optical and thermoluminescence （TL） properties with doping concentrations is investigated in detail.

关键词： CHEMICAL-VAPOR-DEPOSITION ZINC-OXIDE FILMS OPTICAL-PROPERTIES TRANSPARENT

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Telenutrition for the management of inflammatory bowel disease:Benefits,limits,and future perspectives

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World Journal of Clinical Cases 2023年第2期11卷 308-315页

作者： Merve Güney Coşku Ezgi Kolay metin Basaranoglu Department of Nutrition and Dietetics Istanbul Medipol UniversityFaculty of Health SciencesIstanbul 34810Turkey Department of Nutrition and Dietetics Institute of Health SciencesIstanbul Medipol UniversityIstanbul 34810Turkey Dietitian Independent ResearcherIstanbul 34000Turkey Department of Gastroenterology Bezmialem Vakif University Faculty of MedicineIstanbul 34093Turkey

Patients with inflammatory bowel disease(IBD)require lifelong and personalized care by a multidisciplinary healthcare ***,the traditional medical model is not ideal for patients who require continuous close monitoring and whose symptoms may dramatically worsen between regularly scheduled ***,close dietary follow-up and monitoring of IBD in a traditional setting are challenging because of the disease complexity,high pressure on outpatient clinics with a small number of IBD specialist dietitians,and rising *** the significant burden of IBD,there is a need to develop effective dietary management *** coronavirus disease 2019 pandemic caused an unprecedented shift from in-person care to delivering health care via technological remote *** nutrition therapy and consultation can be provided by telenutrition through remote electronic communication applications that could greatly benefit patient *** might be useful,safe,and cost-effective compared with standard *** is likely that virtual care for chronic diseases including IBD will continue in some form into the *** review article summarizes the evidence about telenutrition applications in the management of IBD patients,and we gave an overview of the acceptance and impact of these interventions on health outcomes.

关键词： Telenutrition Telemedicine Digital health Inflammatory bowel disease Symptom monitoring Self-management

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Neutrophil-lymphocyte ratio is useful for the prognosis of patients with hepatocellular carcinoma

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World Journal of Gastroenterology 2014年第28期20卷 9631-9632页

作者： Huseyin Kayadibi Erdim Sertoglu metin Uyanik Serkan Tapan Department of Medical Biochemistry Adana Military Hospital Biochemistry Laboratory of Anittepe Dispensary Ankara Mevki Military Hospital Department of Medical Biochemistry GATA School of Medicine

There is increasing evidence that neutrophil-lymphocyte ratio (NLR) may play a role in predicting recurrence in patients with hepatitis B virus-related hepatocellular carcinoma (HCC) after liver transplantation. In the original study by Yan et al, it was aimed to determine whether an elevated NLR is associated with tumor recurrence. Total tumor size (> 9 cm) and macro-vascular invasion were found to be more significant than NLR according to the multivariate logistic regression analysis. Therefore, substantive significance should be emphasized rather than NLR because total tumor size and macro-vascular invasion are easier and more expressive than NLR in assessing HCC recurrence. NLR and platelet-lymphocyte ratio (PLR) are markers which are easy to obtain and can be used as inflammation indicators. Moreover, assessment of both NLR and PLR may add some value as a good predictor of risk for post-liver transplantation HCC recurrence. However, while the study was constructed on whole blood analysis, further details about the features and performance characteristics of the whole-blood analyzer, and preanalytical/analytical variables should also be mentioned.

关键词： Hepatocellular carcinoma Liver transplantation Neutrophil-lymphocyte ratio Platelet-tolymphocyte ratio Prognosis

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Is increased red cell distribution width an indicating marker of nonalcoholic steatohepatitis and fibrotic stage?

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World Journal of Gastroenterology 2014年第35期20卷 12711-12712页

Red cell distribution width (RDW) may play an important role in predicting steatohepatitis and liver fibrosis. In the original study, it was aimed to determine whether RDW could be used for this purpose or not. There are studies indicating that higher RDW is correlated well with components of metabolic syndrome. Because nonalcoholic fatty liver disease is now recognized as the hepatic manifestation of metabolic syndrome, possible impact of the accompanying confounders on the study findings should have been detailed. There may be a patient selection bias due to use of improper cut-off values for alcohol consumption and inclusion of only subjects with normal aminotransferase levels and normal abdominal ultrasonography. Patients without hepatosteatosis on ultrasonography and with any restriction of aminotransferase levels should have been included in the control group, because isolated aminotransferase elevation is not decisive in the diagnosis of hepatosteatosis. Although iron, vitamin B12 and folic acid deficiencies were included in exclusion criteria, functional forms of these molecules like methylmalonic acid, homocysteine, ferritin levels and total iron binding capacity, which are more sensitive and specific parameters for vitamin B12 and folic acid deficiencies, were not mentioned. Consequently, RDW, an inexpensive, non-invasive, but powerful indicator overlooked on whole blood analysis, itself without other inflammatory markers may not accurately provide information about progression of nonalcoholic steatohepatitis and fibrosis.

关键词： Anemia Fibrosis Red cell distribution width Steatohepatitis Steatosis

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A Late Cretaceous ensimatic arc developed during closure of the northern branch of Neo-Tethys(central-northern Turkey)

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Geoscience Frontiers 2019年第3期10卷 1015-1028页

作者： metin Beyazpirin? Ali Ekber Ak?ay Ali Yilmaz Meftun Kerem S?nmez Geological Research Department General Directorate of Mineral Research and Exploration (MTA) Department of Environmental Engineering Engineering Faculty Cumhuriyet University

Studies on differentiation of ensimatic arc units from melange units in the Northern Anatolian Ophiolitic Belt(NAOB) are very rare. The study area represents the southern edge of the central part of the *** aim of the study is to distinguish the main units of NAOB and to define the geotectonic setting of the Darmik Ensimatic Arc Association(DEAA). To study the ensimatic arc units as an independent tectonic unit is important and facilitates understanding of the geological evolution of the NAOB. During field studies, the contact relationships within the Darmik Ensimatic Arc Association(DEAA) units and also with other tectonic units were reviewed. Then, paleontological, geochronological, petrological and also geochemical properties of the DEAA have been defined. In the present study, ensimatic arc units have been distinguished from ophiolitic association for the first time, in the region. As a result of the study, the DEAA is divided into two levels and lower level named as the Kartal unit and upper level named as the izibüyük unit. In the Kartal unit, basaltic and andesitic lavas with their equivalent pyroclastic rock units are dominant. Radiolarite and mudstones interbedded within the Kartal unit of DEAA have Turonian and Santonian age. In addition, the age of basalt samples of DEAA are 98.7 ± 2.4 Ma, defined using the^(40)Ar/39 Ar method. The izibüyük unit of DEAA comprises conglomerate, sandstone, claystone, mudstone,clayey limestone, micritic limestone with volcanic interbeds and also calciturbidites. Santonian-Maastrichtian ages were obtained from this unit of the DEAA. In conclusion, the age of DEAA is widely accepted as Late Cretaceous. After the evaluation of the analysis, the volcanics of the DEAA originated from calcalkaline-basalts, which reflect ensimatic arc magmatism.

关键词： North Anatolian Ophiolitic Belt Double subduction zones Darmik ensimatic arc Turkey

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