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| 1 | 半胱氨酸在碳钢与硫酸界面的缓蚀行为(英文)显示文摘Interfacial behavior of cysteine (Cys) between mild steel and sulfuric acid solution as a corrosion inhibitor has been studied with electrochemical AC (alternating current) and DC (direct current) techniques at (25.0±0.1) ℃. The AC impedance results were evaluated using equivalent circuits in which a constant phase element (CPE) has been replaced with double layer capacitance (Cdl) to represent the frequency distribution of experimental data. Changes in impedance parameters (charge transfer resistance and double layer capacitance) indicated that cysteine molecules acted by accumulating at the metal/solution interface. The fractional coverage of the metal surface (θ) was determined using AC impedance results and it was found that the adsorption of cysteine on the mild steel surface followed a Langmuir isotherm model with a standard free energy of adsorption (△G0 ads) of -35.1 kJ·mol-1. To clarify the type of interaction between mild steel surface and cysteine molecules with a molecular orbital approach, electronic properties, such as, the highest occupied molecular orbital (HOMO) energy, the lowest unoccupied molecular orbital (LUMO) energy, and the frontier molecular orbital coefficients have been calculated. Energy gaps for the interaction of mild steel surface and cysteine molecules (ELUMO Fe-EHOMO Cys and ELUMO Cys-EHOMO Fe) were used to determine whether cysteine molecules acted as electron donors or electron acceptors when they interacted with the mild steel surface. The local reactivity was evaluated through the condensed Fukui indices. Theoretical calculations were carried out using the density functional theory (DFT) at B3LYP level with the 6-311++G(d,p) basis set for all atoms by Gaussian 03W program. | ZCAN Muzaffer KARADA■ Faruk DEHRI lyas | 2008 | 物理化学学报2008,24,8: | 5 |
| 2 | Imatinib response of gastrointestinal stromal tumor patients with germline mutation on KIT exon 13:A family report显示文摘Familial gastrointestinal stromal tumor(GIST) is a rare autosomal dominant disorder associated with mutations in the KIT gene in the majority of cases. Although, exon 11 appears to be the hot spot region for approximately 95% of germline mutations, pathogenic variations have also been identified in exon 8, 13 and 17. Exon 13 germline mutations are extremely rare amongst familial GISTs and seven families with a germline mutation have been reported to date. Moreover, the role of imatinib mesylate in this rare familiar settings is not completely known so far. We describe here clinical, imaging, pathological and genetic findings of a family with four affected members; grandmother, his son and two grand-sons having a germline gain-of-function mutation of KIT in exon 13 and discuss the imatinib mesylate treatment surveillance outcomes towards disease management. | Gulgun Engin Serpil Eraslan Hülya Kayserili Yersu Kapran Haluk Akman Ali Akyuz Nuri Faruk Aykan | 2017 | World Journal of Radiology2017,9,9: | 3 |
| 3 | Is adiponectin level a predictor of nonalcoholic fatty liver disease in nondiabetic male patients?显示文摘AIM: To study the levels of adiponectin in nondiabetic patients with nonalcoholic fatty liver disease (NAFLD) in comparison with control group.METHODS: Thirty-five patients who had elevated serum aminotransferase levels with bright liver and 34 healthy volunteers without liver disease were evaluated. Age,gender and body mass index (BMI) were recorded. Fasting plasma glucose, insulin, adiponectin, proinsulin and lipid profile were measured. A standard oral glucose tolerance test (OGTT) with insulin response was performed and the index of insulin resistance was calculated according to the homeostasis model assessment (HOMA) method.RESULTS: According to the OGTT results, none of the participants had diabetes. Serum adiponectin levels were statistically significantly lower in patients with NAFLD than in control group (8.14±3.4 μg/mL vs12.4±9.4 μg/mL,respectively, P<0.01). A statistically significant correlation was found between adiponectin and BMI (r: -0.33, P<0.01),HOMA (r: -0.26, P<0.05), proinsulin (r: -0.32, P<0.01),AST (r: -0.25, P<0.05), ALT (r: -0.26, P<0.05) or GGT (r: -0.22, P<0.05). In multiple regression analysis models,adiponectin levels were the only predictor of NAFLD in males, whereas in female group it was the BMI.CONCLUSION: Low adiponectin level might be a predictor of NAFLD especially in male nondiabetics. | Haluk Sargin Mehmet Sargin Hülya Gozu Asuman Orcun Gülcan Baloglu Murat Ozisik Mesut Seker Oya Uygur-Bayramicli | 2005 | World Journal of Gastroenterology2005,11,37: | 3 |
| 4 | Comparison of multichannel intraluminal impedance-pH monitoring and reflux scintigraphy in pediatric patients with suspected gastroesophageal reflux显示文摘AIM To evaluate the agreement of multichannel intraluminal impedance-p H monitoring(MII-p HM) and gastroesophageal reflux scintigraphy(GES) for the diagnosis of gastroesophageal reflux disease. METHODS Seventy-five consecutive patients with suspectedgastroesophageal reflux disease(GERD) underwent 24-h combined MII-p HM recording and one hour radionuclide scintigraphy during the course of the MIIpH M study. Catheters with 6 impedance channels and 1 p H sensor were placed transnasally. Impedance and p H data analysis were performed automatically and manually. For impedance monitoring, reflux was defined as a retrograde 50% drop in impedance, starting distally and propagating retrogradely to at least the next two more proximal measuring channels. Reflux index(RI, percentage of the entire record that esophageal p H is < 4.0) greater than 4.2% for p HM and number of refluxes more than 50 for 24 h for MII were accepted as positive test results. At scintigraphy, 240 frames of 15 seconds duration were acquired in the supine position. Gastroesophageal reflux was defined as at least one reflux episode in the esophagus. After scintigraphic evaluation, impedance-pH recordings and scintigraphic images were evaluated together and agreement between tests were evaluated with Cohen's kappa.RESULTS Sufficient data was obtained from 60(80%) patients(34 male, 56.7%) with a mean age of 8.7 ± 3.7 years(range: 2.5-17.3 years; median: 8.5 years). Chronic cough, nausea, regurgitation and vomiting were the most frequent symptoms. The mean time for recording of MII-pH M was 22.8 ± 2.4 h(range: 16-30 h; median: 22.7 h). At least one test was positive in 57(95%) patients. According to diagnostic criteria, GERD was diagnosed in 34(57.7%), 44(73.3%), 47(78.3%) and 51(85%) patients by means of p HM, MII, GES and MII-p HM, respectively. The observed percentage agreements/κ values for GES and p HM, GES and MII, GES and MII-p HM, and MII and p HM are 48.3%/-0.118; 61.7%/-0.042; 73.3%/0.116 and 60%/0.147, respectively. There was no or slight agreement between GES and p HM alone, MII alone or MII-p HM. p H monitoring alone missed 17 patients compared to combined MII-p HM. The addition of MII to pH monitoring increased the diagnosis rate by 50%.CONCLUSION No or slight agreement was found among p H monitoring, MII monitoring, MII-pH monitoring and GES for the diagnosis of gastroesophageal reflux disease. | Nuray Uslu Kizilkan Murat Fani Bozkurt Inci Nur Saltik Temizel Hülya Demir Aysel Yüce Biray Caner Hasan Ozen | 2016 | World Journal of Gastroenterology2016,22,43: | 2 |
| 5 | Acute abdomen caused by nontraumatic hemoperitoneum is the first manifestation of gastric low grade stromal tumor显示文摘BACKGROUND:Gastrointestinal stromal tumors(GISTs) are the most common mesenchymal tumors of the gastrointestinal tract in adults.We treated surgically a man with acute abdomen caused by non-traumatic hemoperitoneum and diagnosed by low grade gastric GIST.METHODS:A 51-year-old Caucasian man came to the hospital for abdominal pain for 3 hours.He had no history of abdominal trauma.On admission,he was conscious and alert,and he had hypotension(80/50 mmHg) and moderate tachycardia.Abdominal ultrasonography showed the presence of free peritoneal fluid.Abdominal magnetic resonance imaging(MRI) showed diffuse intraabdominal hemorrhage and solid mass lesion at the greater curvature of the stomach.At an emergency laparotomy,a pedunculated,fragile mass of 5x6 cm originating from the posterior wall of the stomach was seen.The tumor was resected.Histopathologically a gastrointestinal stromal tumor was detected.RESULTS:The patient had an uneventful postoperative course and was discharged on the sixth postoperative day.Follow-up showed no recurrence of the tumor 8 months after surgery.CONCLUSION:Intraabdominal bleeding is a rare presentation of gastrointestinal stromal tumors.The diagnosis of the tumor should be based on whether sudden abdominal pain occurs in patients with an intraabdominal mass. | Savas Yakan Enver Ilhan Fevzi Cengiz Hülya Mollamehmetoglu Kemal Emre Telciler | 2012 | World Journal of Emergency Medicine2012,3,3: | 2 |
| 6 | Advances in reduction of NO_x and N_2O emission formation in an oxy-fired fluidized bed boiler显示文摘Fossil fuel combustion is one of the major means to meet the mounting global energy demand. However, the increasing NO_x and N_2 O emissions arising from fossil fuel combustion process have hazardous effects. Thus, mitigating these gases is vital to attain a sustainable environment. Interestingly, oxy-fuel combustion in fluidized bed for carbon capture and minimized NO_x emissions is strongly sustainable compare to the other approaches. It was assessed that NO_x formation and fuel-N conversion have significant limitation under oxy-fluidized bed compared to air mode and the mechanism of NO_x formation is still deficient and requires further development. In addition, this review paper discussed the potential of primary measure as low emission process with others supplementary techniques for feasible NO_x reduction. The influences of combustion mode, operating parameters, and reduction techniques such as flue gas recirculation, oxygen staging, biomass co-firing, catalyst, influence of fluidized bed design and structure, decoupling combustion and their merges are respectively evaluated. Findings show that significant minimization of NO_x emission can be achieved through combination of primary and secondary reduction techniques. | Khalid El Sheikh Mohammad Jakir Hossain Khan Mahar Diana Hamid Siddhartha Shrestha Brahim Si Ali G.A.Ryabov Lya A.Dolgushin Mohd Azlan Hussain Tatiana V.Bukharkina Elena A.Gorelova | 2019 | Chinese Journal of Chemical Engineering2019,27,2: | 2 |
| 7 | Adsorption of Pb(II) ions from aqueous solution by native and activated bentonite: Kinetic, equilibrium and thermodynamic study显示文摘 | Ali R?za Kul Hülya Koyuncu | 2010 | Journal of Hazardous Materials2010,,1: | 2 |
| 8 | 不同种类AA7075-AA5754合金冷态金属转移焊的腐蚀行为和力学性能(英文)显示文摘冷金属转移(CMT)焊接是一种全新的电弧焊技术,在薄板及异种材料的焊接中取得了良好的效果。不同类型铝接头的腐蚀行为应根据腐蚀介质对其结构可能造成的失效的影响来进行预测。研究了热输入对ER5356焊丝CMT焊接的AA5754-AA7075接头力学性能和腐蚀速率的影响。在焊缝金属和AA7075基体金属的部分熔化区都可观察到气孔的形成,这是由于锌的蒸发作用造成的。随着热输入的增加,AA7075基体金属发生过时效和锌汽化,AA5754基体金属晶粒粗化,从而降低了抗拉强度。AA7075-AA5754接头的平均抗拉强度在235~240MPa。所有样品中,塑性断裂均发生在AA5754母材一侧。腐蚀机理以点蚀为主。随着热输入的增加,耐蚀性逐渐增强。为优化耐腐蚀性和强度,建议热输入值在95至110 J/mm之间。 | Nilay ??MEZ Hülya DURMU? | 2020 | Journal of Central South University2020,27,1: | 2 |
| 9 | High volatility, thick tails and extreme value theory in value-at-risk estimation显示文摘 | Ramazan Gen?ay Faruk Sel?uk Abdurrahman Ulugülya?ci | 2003 | Insurance Mathematics and Economics2003,,2: | 2 |
| 10 | Thoracic disc henliation mimicking acute lumbar disc disease显示文摘 | Lya RK Chang HS Tang LM | 1999 | Spine1999,24,4: | 1 |
| 11 | The cagA status of Helicobacter pylori isolates from dyspeptic children in Turkey显示文摘 | ?nci Nur Salt?k Hülya Demir Doruk Engin ?zge Darka Ertun? Yakut Aky?n Nurten Ko?ak | 2003 | FEMS Immunology and Medical Microbiology2003,,3: | 1 |
| 12 | An Investigation into Breastfeeding Characteristics of Mothers Attending Childbirth Education Classes显示文摘 | Samiye Mete Kerziban Yenal Hülya Okumu | 2010 | Asian Nursing Research2010,4,4: | 1 |
| 13 | An analysis of decentralized collection and processing of end-of-life products显示文摘 | Ibrahim Karakayali Hülya Emir-Farinas Elif Akcali | 2007 | Journal of Operations Management2007,,6: | 1 |
| 14 | Implementing the multilayer retinal model on the complex-cell CNN-UM chip prototype显示文摘 | Bálya D Petrás I Roska T | 2004 | International Journal of Bifurcation and Chaos2004,14,2: | 1 |
| 15 | The Use of Expressive Methods for Developing Empathic Skills显示文摘 | Neslihan Keser ?zcan Hülya Bilgin Nevin Eracar | 2011 | Issues in Mental Health Nursing2011,,2: | 1 |
| 16 | Nasal and bronchial response to exercise in children with seasonal allergic rhinitis out of the pollen season显示文摘 | Koray Harmanc? Bar?s Urhan Hülya An?l Abdulkad?r Kocak | 2015 | Int Forum Allergy Rhinol2015,,: | 1 |
| 17 | The internet and social life显示文摘 | Bargh JA McKenna LYA | | 0,,: | 1 |
| 18 | Vitamin D3 down- regulates Proinflammatory eytokine response to Myeobaeterium tu- berculosis through Pattern recognition releptors while inducing protective cathelicidin prodnction 显示文摘 | Khoo AL Chai LYA Koeren HJPM | 2011 | Cytokine2011,55,2: | 1 |
| 19 | Performance analysis of a hybrid systemunder quality impact of returns显示文摘 | Hülya B Aybek K | 2009 | Computers&IndustrialEngineering2009,56,2: | 1 |
| 20 | Particle-size,size distribution and dislocations in nanocrystalline tungsten-carbide显示文摘 | Ungára T Borbélya A Goren-Muginstein G R | 1999 | Nanostructured Materials1999,11,1: | 1 |