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| 1 | Effect of Y addition on microstructure and corrosion behavior of extruded Mg-Zn-Nd-Zr alloy显示文摘In this study,the effect of Y addition(0,0.5,1 and 2 wt%)on microstructure and corrosion properties of Mg-6Zn-0.5Zr-1 Nd(wt%)alloy was investigated.The alloys were produced by low-pressure die casting method and extruded at 300℃and 400℃after homogenization treatment at 400℃for 24 h.The results showed that the as-cast microstructure of the alloy with no Y addition consisted ofα-Mg,Mg-Zn binary and Mg-Zn-Nd ternary phases.With increasing Y additions,the average grain size showed a substantial decrease and two kinds of ternary Mg-Zn-Y ternary phases,designated as I-phase(Mg3Zn6Y)and W-phase(Mg3Zn3Y2)were formed.Homogenization treatment resulted in a partial dissolution of second phase particles.Extrusion process gave rise to a remarkable grain refinement due to the DRX mechanism.The extruded alloys with no Y addition exhibited poor corrosion resistance due to the strong micro galvanic coupling effect.Y additions up to 1 wt%improved the corrosion resistance due to the formation of finer grains,fine and uniform distribution of second phase particles and more stable oxide film. | Huseyin Zengin Yunus Turen | 2020 | Journal of Magnesium and Alloys2020，8，3： | 11 |
| 2 | Retinal nerve fiber layer thickness changes in obstructive sleep apnea syndrome: one year follow-up results显示文摘·AIM: To investigate the retinal nerve fiber layer(RNFL)thickness changes in patients with obstructive sleep apnea syndrome(OSAS) for one year follow-up. To discuss the possibility of detecting tendency of glaucoma in this population by using spectral domain optical coherence tomography(3D-OCT-2000 Spectral domain).·METHODS: After polysomnographic study, all subjects(64 OSAS patients and 40 controls) underwent detailed ophthalmological examination. After these examinations,patients with glaucoma and patients who had ophthalmological and/or systemic disease were excluded from the study.Totally, 20 patients in OSAS group and five patients in controls were excluded from the study in the first examination and follow-up period. The RNFL thickness was assessed with OCT. Forty-four OSAS patients and 35 control subjects were followed up for12 mo. RNFL thickness change and OSAS patients were evaluated for severity of disease by Apnea-Hypopnea Index(AHI).·RESULTS: Forty-four OSAS patients and 35 controls were enrolled in the study. Statistically significance was found between OSAS patients and controls at the 12 thmo.Average RNFL thickness was found to be significantly lower in last measurements in OSAS patients when compared with first measurements and control subjects(P <0.001, 0.002, respectively). There was a statistically significant correlation among AHI, and RNFL thickness(P <0.05).·CONCLUSION: The results suggest that the patients with OSAS were related with a proportional decrease in the RNFL thickness. These patients should be followed up regularly for glaucomatous changes. Detecting more RNFL thinning in severe OSAS was important. | Mehmet Ozgur Zengin Ibrahim Tuncer Eyyup Karahan | 2014 | International Journal of Ophthalmology(English edition)2014，7，4： | 9 |
| 3 | Analysis of temporal changes in land cover and landscape metrics of a managed forest in the west Black Sea region of northern Turkey: 1970–2010显示文摘Forest structure changes continuously by natural and anthropogenic effects. Because the level of goods and services provided by forest ecosystems are related to this structure, some attributes have to be controlled while they are being managed. In this paper we describe the long-term temporal changes in land area and landscape metrics related to different land uses of a managed forest in Turkey. The study was carried out for the Daday Forest Planning Unit located in the west Black Sea region of northern Turkey. The total area is 16,813 ha and besides wood production, it is managed for erosion control, public health, aesthetics, and recreation. Stand type maps that were constructed in 1970,1989, 1999, and 2010 were used in this analysis. Transition matrixes that illustrate area changes among cover types and temporal changes on some landscape metrics were obtained using Geographic Information Systems. Stands were separated into small patches, and thus the number of patches increased nearly two-fold between 1970 and 2010. The total forest edge increased and through the associated fragmentation, the amount of core forest area decreased at the landscape scale. Landscape metrics were applied to digitized versions of historical maps to assess how forest area changed. Human use of the land has changed, forest management practices have evolved, and these along with natural forest growth have contributed to interesting changes in landscape character. | Hayati Zengin Ahmet Salih Degermenci Pete Bettinger | 2018 | Journal of Forestry Research2018，29，1： | 5 |
| 4 | 添加锡对AS21镁合金显微组织和耐腐蚀性能的影响(英文)显示文摘研究添加锡对AS21 镁合金显微组织和耐腐蚀性能的影响。采用低压压铸法制备分别添加0、0.5、1 和2 wt.% Sn 的AS21 合金。用光学显微镜和扫描电镜进行显微组织表征,通过在3.5% NaCl 溶液中浸渍和电化学腐蚀试验研究合金的耐腐蚀性能。微观检测结果显示,AS21 合金中含有α-Mg、孤立的β-Mg17Al12 和汉字状Mg2Si 金属间化合物相。随着Sn 含量的增加,Mg2Si 相的分布变得更加离散和致密。当Sn 添加量为2 wt.%时,形成遍布于整个组织的富Sn 网状结构,汉字状组织由短棒状的Mg2Si 相排列组成。持续浸泡腐蚀试验表明,随着锡含量的增加,AS21 合金的降解程度不断降低,当锡含量为2 wt.%时,AS21 合金的腐蚀速率降低约65%。电化学腐蚀试验也表明,随着锡含量的增加,AS21 合金的耐蚀性逐渐提高。 | Huseyin ZENGIN Yunus TUREN Hayrettin AHLATCI Yavuz SUN Abdullah Cahit KARAOGLANLI | 2019 | Transactions of Nonferrous Metals Society of China2019，29，7： | 4 |
| 5 | Microstructure,mechanical properties and corrosion resistance of as-cast and as-extruded Mg-4Zn-1La magnesium alloy显示文摘Microstructure,mechanical properties and corrosion resistance of as-cast and as-extruded Mg-4 wt%Zn-1 wt%La magnesium alloys were investigated.The alloys were produced by low-pressure die casting method and extruded at 350℃after homogenization at 400℃for 24 h.The results show that the as-cast alloy mainly consists of primaryα-Mg matrix and Mg-Zn-La ternary second phases(also called T-Phase)along grain boundaries and isolated spherical particles inside the grains.After extrusion at350℃,the average grain size decreases by 81%due to dynamic recrystallization mechanism and T-phase particles are distributed along the extrusion direction.The elongation,yield strength and tensile strength of the as-cast Mg-4Zn-1La alloy increase by 179%,90%and 40%,respectively,as a result of the extrusion process.The as-extruded Mg-4Zn-1La alloy shows better corrosion resistance than the as-cast alloy due to increased grain boundaries and decreased content of T-phase. | Huseyin Zengin Yunus Turen Hayrettin Ahlatci Yavuz Sun | 2020 | Rare Metals2020，39，8： | 4 |
| 6 | Comparison of the Retinomax hand-held autorefractor versus table-top autorefractor and retinoscopy显示文摘AIM:To compare noncycloplegic and cycloplegic results of Retinomax measurements with findings achieved after cycloplegia using table-top autorefractor and retinoscopy.METHODS:The study included 127 patients(mean age96.7mo,range 21 to 221).Retinomax(Rmax)(Nikon Inc.,Japan)was used to obtain noncycloplegic refraction.Under cycloplegia,refraction was measured with Rmax,table-top autorefractor(TTR)(Nikon NRK 8000,Inc.,Japan)and retinoscopy.The values of sphere,spherical equivalent,cylinder and axis of cylinder were recorded for Rmax,TTR and retinoscopy in each eye.All results were analyzed statistically.RESULTS:The mean spheric values(SV),spherical equivalent values(SEV)and cylindrical values(CV)of the noncycloplegic Rmax(SV:0.64 D,SEV:0.65 D and CV:0.03 D,respectively)were found to be significantly lower than cycloplegic TTR(1.43 D,1.38 D and 0.3 D;P=0.012,P=0.011 and P=0.04,respectively)and retinoscopy(1.34 D,1.45 D and 0.23 D;P=0.04,P=0.002 and P=0.045,respectively).Mean cycloplegic SV,SEV,CV were not significantly different between Rmax and TTR,Rmax and retinoscopy,TTR and retinoscopy.Cycloplegic or noncycloplegic axis values were not different between any method.CONCLUSION:Rmax may be used successfully as a screening tool but may not be accurate enough for actual spectacle prescription.Cycloplegic Rmax measurements may be able to identify refractive error in children because of approximate results to retinoscopy. | Ibrahim Tuncer Mehmet Ozgur Zengin Eyyup Karahan | 2014 | International Journal of Ophthalmology(English edition)2014，7，3： | 3 |
| 7 | An assessment of antioxidant status in patients with carbon monoxide poisoning显示文摘BACKGROUND: Carbon monoxide poisoning(COP) is an important cause of mortality and morbidity worldwide. This study was to investigate the levels of serum paraoxonase(PON), arylesterase(ARYL), ceruloplasmin(Cp), and sulfhydryl(-SH) in the treatment of COP, and to further understand the pathophysiology of COP.METHODS: This prospective study comprised 107 individuals with COP(group 1) and 50 healthy volunteers(group 2). Serum, plasma, and erythrocyte samples were taken on admission from all participants with COP. This process was repeated in the 90 th and 180 th minutes of treatment. Samples were taken from the control group only once. The levels of plasma PON, ARYL, Cp activity and-SH were measured in both groups.RESULTS: Age, gender, and carboxyhemoglobin level were not correlated with PON, ARYL, Cp, and-SH levels. PON, ARYL, and-SH levels were signifi cantly decreased in group 1 compared with group 2. Conversely, Cp was signifi cantly elevated in group 1 in contrast to group 2. Although ARYL was lower on admission in patients with COP than that was observed in the 90 th and 180 th minutes(P<0.001), Cp was higher on admission than at the other time points(P<0.001).CONCLUSIONS: Participants with COP had decreased levels of antioxidants(PON, ARLY, and-SH). COP represses the antioxidant system. | Suat Zengin Behcet A Sahin Karta Basri Can Mustafa Orkmez Abdullah Taskin Ugur Lok Bediha Gulen Cuma Yildirim Seyithan Taysi | 2014 | World Journal of Emergency Medicine2014，5，2： | 2 |
| 8 | Inappropriate use of digoxin in patients presenting with digoxin toxicity显示文摘尽管有它的狭窄的治疗学的索引和毒性, BackgroundDigoxin 遗体今天广泛地使用了。学习是调查异羟基洋地黄毒苷的不恰当的使用和老病人的长期的结果的百分比的这的目的就医了因为异羟基洋地黄毒苷 toxicity.MethodsThe 学习包括了为异羟基洋地黄毒苷毒性就医的 99 个连续病人。如果参加者压抑左室的收缩功能,为异羟基洋地黄毒苷的不恰当的使用的另外的学习标准被考虑(喷射部分 <45%) 不在包括贝它块和 angiotensin-converting-enzyme 禁止者治疗的最佳的医药治疗上或如果参加者有永久 AF 尽管有它的狭窄的治疗学的索引,不在最佳的贝它块 therapy.ResultsAppropriate 异羟基洋地黄毒苷用法上的人,在 33 个病人被证实。99 个病人中的 16 个的一个总数死了,与 22.1 ± 的一吝啬的后续时间;10.3 months.ConclusionsContrary 到流行信仰,不恰当的异羟基洋地黄毒苷用法的率仍然保持高。由于它的狭窄的治疗学的索引和毒性,异羟基洋地黄毒苷应该根据当前的证据和指南更小心地被使用。 | Mustafa Adem Tatlisu Kazim Serhan Ozcan Baris Gungor Ahmet Zengin Mehmet Baran Karatas Zekeriya Nurkalem | 2015 | Journal of Geriatric Cardiology2015，12，2： | 2 |
| 9 | Evolution of Microstructure, Residual Stress, and Tensile Properties of Mg–Zn–Y–La–Zr Magnesium Alloy Processed by Extrusion显示文摘The microstructure, texture, residual stress, and tensile properties of Mg–6 Zn–2 Y–1 La–0.5 Zr(wt%) magnesium alloy were investigated before and after extrusion process, which performed at 300 °C and 400 °C. The microstructural characterizations indicated that the as-cast alloy was comprised of α-Mg, Mg–Zn, Mg–Zn–La, and Mg–Zn–Y phases. During homogenization at 400 °C for 24 h, most of the secondary phases exhibited partial dissolution. Extrusion process led to a remarkable grain refi nement due to dynamic recrystallization(DRX). The degree of DRX and the DRXed grain size increased with increasing extrusion temperature. The homogenized alloy did not show a preferential crystallographic orientation, whereas the extruded alloys showed strong basal texture. The extrusion process led to a signifi cant improvement on the compressive residual stress and mechanical properties. The alloy extruded at 300 °C exhibited the highest basal texture intensity, the compressive residual stress and hardness, and yield and tensile strengths among the studied alloys. | Huseyin Zengin Yunus Turen Muhammet Emre Turan Fatih Ayd?n | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，11： | 2 |
| 10 | Determination of fire-access zones along road networks in firesensitive forests显示文摘Wild forest fires are one of the greatest environmental disasters affecting forest resources. Along the coastal zone of the Mediterranean region in Turkey,forested areas are classified as first-degree, fire-sensitive areas. Every year, thousands of hectares of forests have been destroyed in Turkey. In this study, fire-access zones were determined in the Mediterranean forests of Turkey, by utilizing geographic information systems(GIS) technology. The effective reach distance of fire hoses from both sides of roads was considered in order to delineate fireaccess zones. The effective reach distance can vary based on the technical capabilities and hydraulic capacity of fire trucks(minimum and maximum pressures on water pump);terrain structures(uphill, downhill and flat); and ground slope. These factors and their influences were studied in fire sensitive forest areas located in the eastern Mediterranean city of Kahramanmaras? in Turkey. First, terrain structures on both sides of the road network and groundslope classes were determined based on GIS data layers.Then, fire access zones were delineated according to water pressure data, terrain structures, and ground-slope classes.The results indicated that 69.30 % of the forested areas were within the fire-access zones, while the rest of the forest was out of reach the fire hoses. The accessible areas were also calculated for forested areas with different firesensitivity degrees. The accessible areas were 69.59, 69.96,and 67.16 % for the forested areas that are sensitive to fires at the first, second, and third degrees, respectively. This finding has implications for the monitoring and management of fire threats in areas outside of the reach distance.The outside areas should receive extra attention and monitoring during the fire season so that fires are detected ahead of time and management has sufficient time to react.Besides, new roads should be considered for these areas in order to access more lands in a shorter amount of time. | Abdullah Emin Akay Michael G.Wing Murat Zengin Osman Kose | 2017 | Journal of Forestry Research2017，28，3： | 2 |
| 11 | Thoracofemoral bypass for treatment of juxtarenal aortic occlusion显示文摘 | Koksal C Sarikaya S Zengin M | 2002 | Asian Cardiovasc Thorac Ann2002，10，2： | 1 |
| 12 | Synthesis, characterization and cytotoxicity of novel modified poly[(maleic anhydride)‐ co ‐(vinyl acetate)]/noradrenaline conjugate显示文摘 | Gulderen Karakus Zubeyde Akin Polat Ali Fazil Yenidunya Haci Bayram Zengin Can Bulent Karakus | 2012 | Polym. Int2012，，3： | 1 |
| 13 | Role of inferior vena cava and right ventricular diameter in assessment of volume status:a co- mparative study:ultrasound and hypovolemia显示文摘 | Zengin S A1 B Gene S | 2013 | The American journal of emergency medicine2013，31，： | 1 |
| 14 | Thoracofemoral bypass for treatment of juxtarenal aortic occlusion显示文摘 | Koksal C Sarikaya S Zengin M | 2002 | Asian Cardiovasc Thorac Ann2002，10，2： | 1 |
| 15 | Eco-leather: Chromium -free eather production using Titanium, Oligomeric Melamine -Formaldehyde Resin, and Resorcinol Tanning Agents and the Properties of the Resulting Leathers 显示文摘 | Zengin A C A Crudu M Maier S S | 2012 | Ekoloji2012，21，82： | 1 |
| 16 | Effect of interferon and ribavirin combined with amantadine in interferon and ribavirin non-responder patients with chronic hepatitis C (genotype 1)显示文摘AIM: To evaluate the efficacy of amantadine plus interferonalpha and ribavirin in non-responder patients with chronic hepatitis C.METHODS: Twenty-six non-responder patients received the regimen of IFN-α-2a at a dose of 6 million units three times a week, 1 000-1 200 mg of ribavirin daily, and 200 mg of amantadine daily in divided doses over 48 wk. After the end of treatment, at the 72nd wk, a sustained viral response rate was determined.RESULTS: An early (after 12 wk of therapy) response was seen in 34.6% (9/26) of patients. Response rate at the 24th wk was 42.3% (11/26). End of treatment response (ETR) was 53.8% (14/26). Sustained viral response (SVR) was 42.3% (11/26). There was a statistically significant difference between 0 and 12 wk (P = 0.04), 0 and 24 wk (P = 0.01), 0 and 48 wk (P = 0.00), and 0 and 72 wk (P = 0.001). No patient had severe adverse effects during the treatment.CONCLUSION: Combination regimen of interferon-α,ribavirin and amantadine can enhance sustained viral response on IFN-α and ribavirin non-responder patients with HCV. Triple therapy with amantadine should be evaluated in further studies. | Dilek Oguz Bahattin Cicek Levent Filik Bulent Odemis Mesut Kilic Engin Altintas Neslihan Zengin Emin Altiparmak | 2005 | World Journal of Gastroenterology2005，11，4： | 1 |
| 17 | Cost management through product design:target costing approach显示文摘 | Zengin Y Ada E | 2010 | International Journal of Production Research2010，48，19： | 1 |
| 18 | Chemical and biological treatment technologies for leather tannery chemicals and wastewaters: A review 显示文摘 | Lofrano G Meriq S Zengin G E | 2013 | Science of The Total Environment2013，，： | 1 |
| 19 | Determination of user profile at city parks: a sample from Turkey显示文摘 | Yilmaz S Zengin M Demireioglu Yildiz N | 2007 | Building and Environment2007，42，： | 1 |
| 20 | An environmentally benign synthesis of fiavones from 1,3-diketones using silica gel supported NaHSO4catalyst显示文摘 | Kucukislamoglu M Nebioglu M Zengin M | 2005 | J Chem Res2005，9，： | 1 |
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