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| 1 | Corrosion Protection of Electro-Galvanized Steel by Green Conversion Coatings显示文摘A cerium-based chemical conversion process was studied. First, zinc coating obtained from a free-cyanide alkaline bath, with derivative of imidazol with new brightener, was investigated, zinc-plated steel specimens were treated with a solution of 50 mmol·L-1 Ce(NO3)3. The corrosion behavior of bare and treated mild galvanized steel was evaluated during exposure to 0.5 mol·L-1 NaCl for different immersion time, using Tafel polarization curves and electrochemical impedance spectroscopy (EIS) measurements. The surface morphology of the coating was studied using scanning electron microscopy (SEM). The composition and chemical percent of the coating were examined by X-ray dispersion energy (EDAX). The results of these measurements showed that the newly developed cerium-based conversion coating process was a promising candidate for replaciog the conventional chromate treatments used at present for galvanized steel. | Mirghasem Hosseini Habib Ashassi-Sorkhabi Heshmat Allah Yaghobkhani Ghiasvand | 2007 | Journal of Rare Earths2007，25，5： | 29 |
| 2 | Predictive value and main determinants of abnormal features of intraoperative cholangiography during cholecystectomy显示文摘BACKGROUND:The major issue with intraoperative cholangiography (IOC) is whether its diagnostic accuracy for common bile duct (CBD) stones matches that of other diagnostic procedures,and thus,whether it will become a routine diagnostic procedure.The current study aimed to address the main determinants of CBD stone diagnosis in IOC among an Iranian population.METHODS:In a retrospective review database-based study conducted in Taleghani Hospital in Tehran between 2006 and 2008,baseline data and perioperative information of 2060 patients (male to female ratio 542:1518,mean age 53.7 years) who were candidates for cholecystectomy and underwent concomitant IOC for confirming CBD stones were reviewed.The predictive power of this procedure for diagnosis of abnormal biliary ducts with the focus on biliary stones was determined.RESULTS:Overall mortality and morbidity following cholecystectomy in the study population were 0.6% and 2.6%,respectively.Both early mortality and morbidity due to cholecystectomy were higher in male than female.The prevalence of CBD stones in IOC was 3.4% (5.2% in male and 2.8% in female,P=0.008).Among those without gallstones,8.7% had CBD stones and only 3.1% had concomitant gallstones and CBD stones.The main predictors of stone appearance as an abnormal feature of IOC during cholecystectomy were:advanced age (OR=1.022,P=0.001),male gender (OR=1.498,P=0.050),history of abdominal surgery (OR=1.543,P=0.040) and preoperative endoscopic retrograde cholangiopancreatography (OR=5.400,P<0.001).CONCLUSIONS:IOC is a safe and accurate method for the assessment of bile duct anatomy and stones.Therefore,the routine use of IOC within cholecystectomy seems reasonable and is recommended. | Shahram Yousefpour Azary Heshmat Kalbasi Ali Setayesh Mirhadi Mousavi Asad Hashemi Mahsa Khodadoostan Mohammad Reza Zali Amir Houshang Mohammad Alizadeh | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，3： | 11 |
| 3 | Structural stifness and coulomb damping in compliant foil journal bearings: theoretical considerations 显示文摘 | Ku C-P R Heshmat H | 1994 | STLE Tri Trans1994，37，3： | 1 |
| 4 | Analysis of gas-lubri- cated complaint thrust bearings显示文摘 | Heshmat H Walowit J A Pinkus O | 1983 | ASME Journal of Lu- brication Technology1983，105，4： | 1 |
| 5 | Design and evalua- tion of an ultrahigh speed micro-machining spindle显示文摘 | Jahanmir S Ren Z Heshmat H | 2010 | Ma- chining Science & Technology2010，14，2： | 1 |
| 6 | Structural damping of selfacting compliant foil journal bearings 显示文摘 | Heshmat H Ku C-P R | 1994 | ASME Jour of Trib Trans1994，116，1： | 1 |
| 7 | Performance of a complaint foil seals in a small gas turbine engine simulator employing a hybrid foil/ball bearing support system 显示文摘 | Salehi M Heshmat H | 2001 | Tribology Transactions2001，44，3： | 1 |
| 8 | Evaluation of the efficacy of blood glucose home monitoring device 显示文摘 | Bastanhagh MH Shirvan AR Heshmat R | 2007 | Med Sci Mouit2007，13，3： | 1 |
| 9 | Analysis of gas lubri cated foil journal bearings显示文摘 | Heshmat H Walowit J A Pinkus O | 1983 | ASME Journal of Lubrication Tribology1983，105，10： | 1 |
| 10 | Advancements in the Performance of Aerodynamic Foil Journal Bearings: High Speed and Load Capacity 显示文摘 | Heshmat H | 1994 | ASME Jour Tribol1994，116，： | 1 |
| 11 | Compliant foil bearing structur- al stiffness analysis: Part I theoretical model including strip and variable bump foil显示文摘 | Roger K C P Heshmat H | 1992 | Journal of Tribology1992，144，2： | 1 |
| 12 | First report on simplified diagnostic criteria for pre-hypertension and hypertension in a national sample of adolescents from the Middle East and North Afri- ca: The CASPIAN-Ill study显示文摘 | KELISHADI R HESHMAT R ARDALAN G | 2014 | J Pediatr ( Rio J )2014，90，1： | 1 |
| 13 | Analysis of gas lubricated compliant thrust bearings 显示文摘 | Heshmat H Pinkus O | 1983 | ASME J Lubr Technol1983，105，4： | 1 |
| 14 | Expression of the apoptosis inhibitor Bcl-2 in sputum eosinophils from children with acute asthma显示文摘 | E1-Gamal Y Heshmat N Mahran M | 2004 | Clin Exp Allergy2004，34，11： | 1 |
| 15 | Expression of galectin-3, nm- 23, and cyclooxygenase-2 could potentially discriminate between benign and malignant pheochromocytoma显示文摘 | Saffar H Sanii S Heshmat R | 2011 | AmJ Clin Pathol2011，135，3： | 1 |
| 16 | Histological Evaluation of Single and Double-visit Direct Pulp Capping with Different Materials on Sound Human Premolars: A Randomized Controlled Clinical Trial 显示文摘 | Banava S Fazlyab M Heshmat H | 2015 | Iran Endod J2015，10，2： | 1 |
| 17 | Traction characteristics of high-temperatare powder-lubricated ceramics ( si3 n4/alpha-sic) 显示文摘 | Heshmat H S Dill J F | 1992 | Tribology Transactions1992，35，2： | 1 |
| 18 | Increasing prevalence of iron deficiency in overweight and obese children and adoles- cents 显示文摘 | Heshmat M Katayoon B Soroush Z | 2006 | Eur J Pediatr2006，165，11： | 1 |
| 19 | Structural stifness and coulomb damping in compliant foil Journal bearings : parametric studies 显示文摘 | Ku C-P R Heshmat H | 1994 | STLE Trib Trans1994，37，3： | 1 |
| 20 | Microstruc- ture-fracmm behavior relationships of slot-welded rail steels 显示文摘 | Aldinton Allie Heshmat Aglan Mahmood Fateh | 2011 | Metallurgical and Materials Transactions A2011，42，： | 1 |
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