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| 1 | Influences of diffusion bonding process parameters on bond characteristics of Mg-Cu dissimilar joints显示文摘In many circumstances,dissimilar metals have to be bonded together and the resulting joint interfaces must typically sustain mechanical and/or electrical forces without failure,which is not possible by fusion welding processes.The melting points of magnesium(Mg)and copper(Cu)have a significant difference(nearly 400℃)and this may lead to a large difference in the microstructure and joint performance of Mg-Cu joints.However,diffusion bonding can be used to join these alloys without much difficulty.This work analyses the effect of parameters on diffusion layer thickness,hardness and strength of magnesium-copper dissimilar joints.The experiments were conducted using three-factor,five-level,central composite rotatable design matrix.Empirical relationships were developed to predict diffusion layer thickness,hardness and strength using response surface methodology.It is found that bonding temperature has predominant effect on bond characteristics.Joints fabricated at a bonding temperature of 450℃, bonding pressure of 12 MPa and bonding time of 30 min exhibited maximum shear strength and bonding strength of 66 and 81 MPa, respectively. | G. MAHENDRAN V. BALASUBR AMANIAN T. SENTHILVELAN | 2010 | Transactions of Nonferrous Metals Society of China2010，20，6： | 10 |
| 2 | Enhanced recovery after surgery protocol enhances early postoperative recovery after pancreaticoduodenectomy显示文摘Background: Enhanced recovery after surgery(ERAS) protocol is a multimodal, multidisciplinary and evidence-based approach to reduce surgical stress and enhance recovery in the postoperative period. This study aimed to analyze the outcome of ERAS protocol in patients after pancreaticoduodenectomy(PD). Methods: A total of 50 consecutive patients with pancreatic/periampullary cancer who underwent PD between January 2016 to August 2017 were included in the study. As per the institute ERAS protocol, nasogastric tube(NGT) was removed on postoperative day(POD) 1 if output was less than 200 mL and oral sips were allowed; oral liquids were allowed on POD2; semisolid diet by POD3; abdominal drain was removed on POD 4 if output was less than 100 mL with no evidence of postoperative pancreatic fistula(POPF); normal diet was allowed on POD5. Discharge criteria on POD6 were afebrile, tolerating oral normal diet, pain free and no surgery related complications(defined as per the ISGPS definitions). Results: NGT was removed on POD1 in 45(90%) patients, abdominal drain removed by POD4 in 41(82%) and 43(86%) patients were discharged on POD6. There was no 30-day postoperative mortality. Three(6%) patients had delayed gastric emptying(DGE). None had postoperative hemorrhage and POPF. Readmission rate was 8%. A significant relation was found between the length of hospital stay(LOS) with age( P < 0.05) and a marginal relation between LOS and postoperative albumin( P = 0.05). Conclusions: ERAS protocol can be safely followed in the perioperative care of patients who undergo PD. Early removal of NGT and allowing oral diet restore bowel function early. ERAS decreases the LOS and postoperative complications. | Ramasamy Mahendran Mallika Tewari Vinod Kumar Dixit Hari Shankar Shukla | 2019 | Hepatobiliary & Pancreatic Diseases International2019，18，2： | 9 |
| 3 | Hepatic Artery Pseudoaneurysms: A Single-Center Experience显示文摘 | Raghavendra Nagaraja Mahendran Govindasamy Vibha Varma Amitabh Yadav Naimish Mehta Vinay Kumaran Arun Gupta Samiran Nundy | 2013 | Annals of Vascular Surgery2013，，6： | 2 |
| 4 | Analyzing the effe- ct of diffusion bonding process parameters on bond character- istics of Mg-AI dissimilar joints显示文摘 | Mahendran G Bahu S Balasubramanian V | 2010 | Journal of Materials Eng- ineering and Performance2010，19，5： | 1 |
| 5 | Prospective rando- mized controlled trial : conventional versus powered phlebectomy 显示文摘 | Aremu MA Mahendran B Butcher W | 2004 | JVas Surg2004，39，1： | 1 |
| 6 | Thermal Degradation Kinetics of Structurally Diverse Poly(bispropargyl ethers-bismaleimide) Blends显示文摘Structurally diverse bispropargyl ethers using resorcinol,quinol,4,4￠-dihydroxy biphenyl,bisphenol-A,4,4￠-dihydroxy diphenyl ketone,4,4￠-dihydroxy diphenylsulphone,trimethyl indane bisphenol and tetramethyl spirobiindane bisphenol were prepared by using phase transfer catalyst.Synthesized materials were separately blended with 4,4￠-bismaleimido diphenyl methane(BMIM)in mole ratios(0.5:0.5).The materials were thermally cured and the structural characterisation and the thermal properties of these cross-linked materials are investigated using Fourier-transform infrared(FTIR)spectrophotometer and thermogravimetric analyzer(TGA).Among the different materials investigated poly MRPE,poly MBPEBPA and poly MSPE show higher onset degradation temperature of 300°C indicating higher thermal stability.The degradation kinetics is investigated using Flynn-Wall-Ozawa(FWO),Vyazovkin(VYZ)and Friedman(FRD)methods.Amongst the various cured materials investigated,the activation energy(Ea-D)values obtained for poly MRPE and poly MKPE were observed to increase continuously froma=0.2 to 0.8 and the values range from 199 kJ/mol to 245 k J/mol and 153 k J/mol to 295 k J/mol respectively.The crosslinked materials resulting from these bispropargyl monomers definitely need more energy for bond cleavage due to the presence of more aromatic units.The volatile products obtained during the thermal degradation of the polymers were analyzed using thermogravimetric-Fourier transform infrared analyses(TG-FTIR).The phenols,substituted phenols,carbon monoxide,carbon dioxide and small amount of aniline were found to be the major products during thermal degradation of these cured blends. | Jeyaraj Pandiyan Dhanalakshmi Mahendran Arunjunai Raj Chinnaswamy Thangavel Vijayakumar | 2016 | Chinese Journal of Polymer Science2016，34，3： | 1 |
| 7 | Chemopreventive effect of Lactoba-cillus rhamnosus on growth of a subcutaneously implanted bladder cancercell line in the mouse显示文摘 | Lim BK Mahendran R Lee YK | 2002 | Jpn J Cancer Res2002，93，1： | 1 |
| 8 | Nitric oxide induces cyclooxyenase expression and inhibits cell growth in colon cancer cell lines 显示文摘 | Lin Q Chan ST Mahendran LIR | 2003 | Carcinogenesis2003，24，4： | 1 |
| 9 | Behavior of cold-formed steel wall frames lined with plasterboard显示文摘 | Telue Y Mahendran M | 2001 | Journal of Constructional Steel Research2001，57，： | 1 |
| 10 | Strength of screwed connections in crest-fixed trapezoidal steel claddings 显示文摘 | Mahaarachchi D Mahendran M | 2005 | Australian Journal of Structural Engineering2005，6，1： | 1 |
| 11 | Flexural capacity of hollow flange beams显示文摘 | P Avery M Mahendran | 2000 | Journal of Constructional Steel Research2000，53，： | 1 |
| 12 | Ultimate capacity of innovative cold-formed steel columns 显示文摘 | Narayanan S Mahendran M | 2003 | Journal of Constructional Steel Research2003，59，： | 1 |
| 13 | Model-free kinetic analysis of melamine-formaldehyde resin cure 显示文摘 | Kandelbauer A Wuzella G Mahendran A | 2009 | Chemical Engineering Journal2009，152，： | 1 |
| 14 | Thermal and ionic conductivity studies of plasticized PMMA/PVdF blend polymer electrolytes显示文摘 | RAJENDRAN S MAHENDRAN O MAHALINGA T | 2002 | J European Polymer2002，38，： | 1 |
| 15 | Finite element analysis and design of crest-fixed trapezoidal steel claddings with wide pans subject to pull-through failures 显示文摘 | Mahaarachchi D Mahendran M | 2004 | Engineering Structures2004，26，11： | 1 |
| 16 | Lithium ion conduction in plasticized PMMA/PVdF polymer blend electrolytes 显示文摘 | RAJENDRAN S MAHENDRAN O KANAN R | 2002 | Materials Chem And Phy2002，74，： | 1 |
| 17 | Cyclic pull-out strength of screwed connections in steel roof and wall cladding systems using thin steel battens 显示文摘 | Mahendran M Mahaarachcbi D P | 2002 | Journal ofStructural Engineering ASCE2002，128，6： | 1 |
| 18 | Evaluation of antidiabetic effect of embelin from Embelia ribes in alloxan induced diabetes in rats显示文摘 | Mahendran S Badami S Maithili V | | 0，，： | 1 |
| 19 | Optimiastion of extracellulara tannase production from Paecilomyces variotii显示文摘 | Raaman N Mahendran B Jaganathan C | 2010 | Word Journal of Microbiology and Biotechnology2010，26，6： | 1 |
| 20 | The impact of differential expression of extracellular matrix metalloproteinase inducer,matrix metalloproteinase-2,tissue inhibitor of matrix metalloproteinase-2 and PDGF-AA on the chronicity of venous leg ulcers显示文摘 | Mwaura B Mahendran B Hynes N | 2006 | Eur J Vasc Endovasc Surg2006，31，3： | 1 |
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