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Glass Fibre Reinforced Concrete Rebound Optimization

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Computer Modeling in Engineering & Sciences 2017年第2期113卷 203-218页

作者： Sadik alper YILDIZEL Muhammet Ensar YIGIT Gokhan KAPLAN Karamanoglu MehmetBey UniversityFaculty of EngineeringCivil Engineering DepartmentKaraman/T URKEY Celal Bayar University Faculty of EngineeringCivil Engineering DepartmentManisa/TURKEY Kastamonu University Kastamonu Vocational SchoolKastamonu/TURKEY

Glass fibre reinforced concrete placement technique generates losses due to rebound effects of the already sprayed concrete *** concrete amount cause a significant difference between the initial mix design and emplaced mix *** from the structural differences,it comes with a cost increase which was resulted by the splashed concrete *** factors such as viscosity and quantity of mixes dominate this rebound amount in sprayed glass fibre reinforced concrete applications depending on production technologies and processes;however,this research focuses on the spray distance and the angle of the spray gun which mainly effects the rebound amount in glass fibre reinforced concrete *** paper aims to understand the required angle and distance for glass fibre reinforced concrete mixes having on-site plastic viscosity *** fibre reinforced mixtures were also modelled with a finite element method based software and,the analysis results were compared with production line *** of the analysis and on-site studies showed a decisive correlation between,discharge distance,discharge angle and the viscosity of the concrete.

关键词： Glass fibre glass fibre reinforced concrete finite elements method spray distance spray Angle

Radiotherapy of brain metastases from non-small cell lung cancer

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Journal of Cancer Metastasis and Treatment 2019年第2期4卷 39-50页

作者： Esra korkmaz KirakIi Ufuk YiImaz Department of Radiation Oncology Dr.Suat Seren Chest Disease and Surgery Training and Research Hospitalİzmir 35200Turkey Department of Pulmonology University of Health ScienceDr.Suat Seren Chest Disease and Surgery Training and Research Hospitalİzmir 35200Turkey

Brain metastases risk at the time of diagnosis or during the course of disease is high in non-small cell lung cancer (NSCLC). Even the incidence of brain metastases has increased in recent years, due to detection of smaller asymptomatic lesions with MRI screening as well as improved survival as a consequence of developments in systemic therapies. In the last decade, there have been many trials in the management of NSCLC patients with brain metastases, questioning the role of adjuvant whole brain radiotherapy (WBRT) after surgery or stereotactic radiosurgery (SRS), WBRT, compared to best supportive care in patients not amenable to surgery, aggressive local therapies in solitary brain metastases, postsurgical cavity SRS, SRS in non-oligometastatic patients, cranial radiotherapy in patients with driver mutations, thyrosine kinase inhibitors, immune check point inhibitors and the impact of therapies on neurocognitive functions and quality of life. The main objective of this review is to provide an update on current trends in radiotherapy in the management of newly diagnosed brain metastases from NSCLC.

关键词： Radiotherapy whole-brain radiotherapy stereotactic radiotherapy stereotactic radiosurgery brain metastases lung cancer

AC susceptibility and FC-ZFC magnetic properties of SrTb_(x)Fe_(12-x)O_(19) and SrTm_(x)Fe_(12-x)O_(19) hexaferrites:a comparative study

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Journal of Rare Earths 2021年第8期39卷 1003-1009页

作者： Y.Slimani M.A.Almessiere A.Demir korkmaz A.Baykal I.Ercan Department of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.0.Box 198231441 DammamSaudi Arabia Department of Chemistry Istanbul Medeniyet University34700 UskudarIstanbulTurkey Department of Nanomedicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441 DammamSaudi Arabia

In this comparative study,Tb and Tm substituted Sr-hexafe rrites(HFs) with the chemical compositions of SrTb_(x)Fe_(12-x)O_(19) and SrTm_(x)Fe_(12-x)O_(19)(x=0.00,0.02 and 0.04) were fabricated via citrate sol-gel *** AC susceptibility and FC-ZFC magnetization were *** product structure and morphologies were also investigated via XRD,TEM and SEM along with *** of temperature dependence of magnetization M-T and AC magnetic susceptibility versus temperature were carried *** various synthesized HFs displayed ferrimagnetic behavior within 10-325 *** lower temperatures,super-spin glass-like behavior was ***-Arrhenius and Vogel-Fulcher models were employed to explore the experimental data of AC susceptibility.

关键词： M-type hexaferrites Magnetic properties AC susceptibility FC/ZFC Rare earths

Effect of thulium substitution on conductivity and dielectric belongings of nanospinel cobalt ferrite

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Journal of Rare Earths 2020年第10期38卷 1103-1113,I0003页

作者： B.Unal M.A Almessiere A.Demir korkmaz Y.Slimani A.Baykale Institute of Forensic Sciences and Legal Medicine Istanbul University-CerrahpasaBuyukcekmece CampusAlkent 2000BuyukcekmeceIstanbul 34500Turkey Department of Biophysics.Institute for Research&Medical Consultations(IRMC) Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of Chemistry Istanbul Medeniyet University34700 IstanbulUskudarTurkey Department of Nano-Medicine Research Institute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441 DammamSaudi Arabia

The CoTmx Fe2-x O4(x≤0.1) NPs were synthesized sonochemically.X-ray powder diffraction patterns and TEM images of the samples prove their chemical purity and cubic structure-morphology,*** substitution ratio of thulium ions to cobalt ferrites have an important effect on the characteristic evaluation of both electrical and dielectric characteristic measured at frequencies up to 3.0 MHz between room temperature and 120℃.Since the thulium substitution has a very strong effect on the characteristic evaluation of both electrical and dielectric properties of cobalt-ferrite samples,four substitutio nal ranges-none,small,medium and high were determined for the interpretation of contribution of thulium ratio to ac/dc conductivity,dielectric constant,dielectric loss and tangent *** increases with the incremental frequencies,in general depending on a variety of tendencies of both temperature and substitutional Tm ratios while the activation energy varies with a high dependency to the regional level of Tm substitution in Co-ferrites *** Arrhenius graph appears to provide us with a single activation energy much higher than 400 meV for x=0.02,which can be attributed to electron hopping mechanisms,apart from other substituted spinel ferrites.

关键词： Spinel ferrites Dielectric properties Conductivity CoFe2O4 Tm3+substitution Rare earths

The removal of Cr(Ⅵ) through polymeric supported liquid membrane by using calix[4]arene as a carrier

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Chinese Journal of Chemical Engineering 2019年第1期27卷 85-91页

作者： Canan Onac Ahmet Kaya Duygu Ataman Nefise Ayhan Gunduz H.korkmaz Alpoguz Department of Chemistry Pamukkale University

In this work, the transport and removal of Cr(Ⅵ) were achieved through supported liquid membrane(SLM) by using a 5,17, di-tert-butyl-11,23-bis[(1,4-dioxa-8-azaspiro [4,5]decanyl)methyl]-25,26,27,28-tetrahydroxy calix[4]arene carrier, dissolved in 2-nitrophenyl octyl ether *** studied parameters are the solvent effect in the membrane phase, the effect of carrier concentration, and the acid type in the donor *** Celgard 2500 was used as a membrane *** used the Danesi mass transfer model to calculate the permeability coefficients for each studied *** addition, AFM and SEM techniques were used to characterize the surface morphology of the prepared Celgard 2500 membrane that included the calix[4]arene carrier.

关键词： Resorcinarene Liquid membrane Cr(Ⅵ) Surface characterization

Psychiatric Symptoms in Rapid-onset Obesity with Hypothalamic Dysfunction, Hypoventilation, and Autonomic Dysregulation Syndrome and its Treatment： A Case Report

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Chinese Medical Journal 2016年第2期129卷 242-243页

作者： Habib Erensoy Mehmet Emin Ceylan alper Evrensel Department of Psychiatry Uskudar University Istanbu134330 Turkey

To the Editor： Rapid-onset obesity with hypothalamic dysfunction, hypoventilation, and autonomic dysregulation （ROHHAD） syndrome is a rare disease. It is diagnosed in childhood （usually at 3-4 years of age）. It a... 详细信息

关键词： Rapid-onset hypothalamic dysfunction autonomic dysregulation

Gastric pneumatosis intestinalis associated with malignancy:An unusual case report

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World Journal of Gastroenterology 2009年第6期15卷 758-760页

作者： Ahmet Bilici Berrin Karadag alper Doventas Mesut Seker Department of Medical Oncology Dr.Lutfi Kirdar Kartal Education and Research HospitalKartal 34210 IstanbulTurkey Department of Internal Medicine Sisli Etfal Education and Research Hospital34210 IstanbulTurkey Department of Internal Medicine Istanbul Education and Research Hospital34210 IstanbulTurkey

Pneumatosis intestinalis(PI)is an uncommon disease defined as gas-filled cysts that are found in the wall of the gastrointestinal(GI)*** exact causes of PI are still unclear,but it may associated with coexisting diseases,such as some GI disorders,connective tissue disease,some medication and drugs,and rarely *** most common localization is the small *** PI secondary to malignancy has been rarely *** report on a 94-year- old man with gastric PI associated with inoperable adenocarcinoma localized in the *** the gastrojejunostomy and choledochojejunostomy bypass,his general condition improved and PI disappeared,but he died due to poor performance status and malignancy 6 mo *** suggest that in patients presenting with PI,malignancy should be considered in the differential diagnosis.

关键词： Pneumatosis intestinalis Malignancy Adenocarcinoma

Neutronic study on the effect of first wall material thickness on tritium production and material damage in a fusion reactor

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Nuclear Science and Techniques 2022年第4期33卷 33-50页

作者： HacıMehmet S¸ahin Güven Tunc¸ alper Karakoc¸ Melood Mohamad Omar Department of Energy Systems Engineering Technology FacultyKarabuk UniversityKarabukTurkey Department of Energy Systems Engineering Technology FacultyGazi UniversityAnkaraTurkey Department of Energy Systems Engineering Institute of Graduate ProgramsKarabuk UniversityKarabukTurkey

In this study,the effects of changing first wall materials and their thicknesses on a reactor were investigated to determine the displacement per atom(DPA)and gas production(helium and hydrogen)in the first wall,as well as the tritium breeding ratio(TBR)in the coolant and tritium breeding ***,the modeling of the magnetic fusion reactor was determined based on the blanket parameters of the International Thermonuclear Experimental Reactor(ITER).Stainless steel(SS 316 LNIG),Oxide Dispersion Strengthened Steel alloy(PM2000 ODS),and China low-activation martensitic steel(CLAM)were used as the first wall(FW)*** family molten salt materials(FLiBe,FLiNaBe,FLiPb)and lithium oxide(LiO_(2))were considered the coolant and tritium production material in the blanket,*** transport calculations were performed using the wellknown 3D code MCNP5 using the continuous-energy Monte Carlo *** built-in continuous energy nuclear and atomic data libraries along with the Evaluated Nuclear Data file(ENDF)system(ENDF/B-V and ENDF/B-VI)were ***,the activity cross-section data library CLAW-IV was used to evaluate both the DPA values and gas production of the first wall(FW)*** interface computer program written in the FORTRAN 90 language to evaluate the MCNP5 outputs was developed for the fusion reactor *** results indicated that the best TBR value was obtained for the use of the FLiPb coolant,whereas depending on the thickness,the first wall replacement period in terms of radiation damage to all materials was between 6 and 11 years.

关键词： ITER First wall material Material damage Tritium breeding ratio Fluorides family molten salt materials

Trabeculectomy with large area mitomycin-C application as a first-line treatment in advanced glaucoma: retrospective review

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International Journal of Ophthalmology(English edition) 2014年第1期7卷 104-109页

作者： Zeynep Aktas Safak korkmaz Murat Hasanreisoglu Merih Onol Berati Hasanreisoglu Department of Ophthalmology Gazi University Medical Faculty Department of Ophthalmology Duzce Ataturk State Hospital Wold Eye Hospital

AIM: To evaluate the outcomes of trabeculectomy with large area mitomycin-C(MMC) application as a first line treatment in advanced glaucoma. ·METHODS: The records of 55 patients with severe visual field defects undergoing trabeculectomy were retrospectively reviewed. The patients were classified as first-line therapy to either early trabeculectomy(initial trabeculectomy-Group 1) or long term medical therapy followed by trabeculectomy(primary trabeculectomy-Group 2). Trabeculectomy was performed with large-area MMC application. Intraocular pressure(IOP) values,visual acuities,mean deviations,morphology and function of the blebs,necessity for anti-glaucomatous medications and surgical complications were reported. ·RESULTS: There were 20 eyes of 18 patients in Group 1 and 37 eyes of 37 patients in Group 2. The mean preoperative IOPs in Groups 1 and 2 were 40.2±10.0mmHg(27-68mmHg) and 29.0±4.4mmHg(21-41mmHg),respectively(P=0.001). Average preoperative mean deviations(MD) in Groups 1 and 2 were 17.4±2.8dB(13.3-23dB) and 17.9± 2.4dB(13.7-23.2dB),respectively(P=0.441). Postoperative IOPs significantly decreased and were comparable in both Groups. The mean number of medications was significantly higher in Group 2(P =0.005). No cystic bleb formation was observed in Group 1,whereas 4 patients from Group 2(10.8%) developed cystic bleb(P =0.040). No visually devastating complication has occurred in both Groups. ·CONCLUSION: Initial trabeculectomy with large areaMMC application might be applied in patients with advanced glaucoma with low complication rates. Long-term topically applied anti-glaucomatous medications seem to increase the risk of cystic bleb formation.

关键词： trabeculectomy advanced glaucoma large area mitomycin-C application