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| 1 | Vibrational characteristics of piping system in air conditioning outdoor unit显示文摘The modal analysis of piping system in air conditioner (AC) outdoor unit is essential to investigate the vibration properties of the system. In view of the growing significance of numerical finite element (FE) model for vibration behaviour prediction, the AC piping elastic end support characterization has been explored. The axial and radial stiffness variables (ka, kr1, kr2) of the compressor-piping mounting are obtained and represented by dynamic stiffness of compressor grommet. They are obtained from dynamic load deflection test based on compressor operating condition such as excitation frequency and amplitude. The unknown stiffness variables of the other tube end (chassis-piping mounting) are determined by parameter fine tuning. An experimental modal analysis using impact hammer test has also been employed to determine the vibration properties such as natural frequencies, mode shapes and damping ratio of the piping structures. The modal parameters acquisition using SCADAS mobile acquisition system and LMS Impact Testing software is compared with the corresponding simulated modal properties using Abaqus. Most of the simulated natural frequencies achieve good correlation with the measured frequencies and it is reasonably a good prediction model to predict vibration behaviour of AC piping structures. | S. K. LOH W. F. FARIS M. HAMDI W. M. CHIN | 2011 | Science China(Technological Sciences)2011,54,5: | 17 |
| 2 | Post-Percutaneous Nephrolithotomy Extensive Hemorrhage: A Study of Risk Factors显示文摘 | Ahmed R. El-Nahas Ahmed A. Shokeir Ahmed M. El-Assmy Tarek Mohsen Ahmed M. Shoma Ibrahim Eraky Mahmoud R. El-Kenawy Hamdy A. El-Kappany | 2007 | The Journal of Urology2007,,2: | 3 |
| 3 | Comparison of Outcomes of Different Varicocelectomy Techniques: Open Inguinal, Laparoscopic, and Subinguinal Microscopic Varicocelectomy: A Randomized Clinical Trial显示文摘 | Ahmed M. Al-Kandari Hani Shabaan Hamdi M. Ibrahim Yehya H. Elshebiny Ahmed A. Shokeir | 2007 | Urology2007,,3: | 2 |
| 4 | Decision-Making about PSA Testing and Prostate Biopsies: A Qualitative Study Embedded in a Primary Care Randomised Trial显示文摘 | Kerry N.L. Avery Jane M. Blazeby J. Athene Lane David E. Neal Freddie C. Hamdy Jenny L. Donovan | 2007 | European Urology2007,,6: | 1 |
| 5 | Protective Effect of Egyptian Propolis against Rabbit Pasteurellosis显示文摘 | Somia A. Nassar Amira H. Mohamed Hamdy Soufy Soad M. Nasr Stelvio M. Bandiera | 2013 | BioMed Research International2013,,: | 1 |
| 6 | Effect of temperature on the performance of an anaerobic tubular reactor treating fruit and vegetable waste显示文摘 | H. Bouallagui O. Haouari Y. Touhami R. Ben Cheikh L. Marouani M. Hamdi | 2003 | Process Biochemistry2003,,12: | 1 |
| 7 | Investigating the fretting fatigue life of thin film titanium nitride coated aerospace Al7075-T6 alloy显示文摘 | E. Zalnezhad Ahmed A.D. Sarhan M. Hamdi | 2013 | Materials Science & Engineering A2013,,: | 1 |
| 8 | Repetitive forging (RF) using inclined punches as a new bulk severe plastic deformation method显示文摘 | A. Babaei G. Faraji M.M. Mashhadi M. Hamdi | 2012 | Materials Science & Engineering A2012,,: | 1 |
| 9 | Mortality prediction of nonalcoholic patients presenting with upper gastrointestinal bleeding using data mining显示文摘 | Abd Elrazek M.A. Abd Elrazek Hamdy M. Mahfouz Amro M. Metwally Ahmed M. El-Shamy | 2014 | European Journal of Gastroenterology & Hepatology2014,,2: | 1 |
| 10 | Bioreactor performance in anaerobic digestion of fruit and vegetable wastes显示文摘 | H. Bouallagui Y. Touhami R. Ben Cheikh M. Hamdi | 2004 | Process Biochemistry2004,,3: | 1 |
| 11 | General Evaluation of Biocide (Bt-ASF-1) Produced from Iraqi Isolate of Bacillus thuringiensis显示文摘 | A. S. Ahmed S. Kadim F. M. Sajet J. A. Juwaed A. Hamdy I. Atyia S. A. Alhamid | 2011 | Journal of Agricultural Science and Technology(B)2011,1,5: | 1 |
| 12 | The Patterns of Expression of an Apoptosis-Related CK18 Neoepitope, the bcl-2 Proto-Oncogene, and the Ki67 Proliferation Marker in Normal, Hyperplastic, and Malignant Endometrium显示文摘 | Hassan M. Morsi Mathie P.G. Leers Wolfram J?ger Viveka Bj?rklund Martin Radespiel-Tr?ger Hamdy El Kabarity Marius Nap Norbert Lang | 2000 | International Journal of Gynecological Pathology2000,,2: | 1 |
| 13 | Influence of substrate and annealing temperatures on optical properties of RF-sputtered TiO 2 thin films显示文摘 | M.M. Hasan A.S.M.A. Haseeb R. Saidur H.H. Masjuki M. Hamdi | 2009 | Optical Materials2009,,6: | 1 |
| 14 | Preliminary results of intrastromal corneal ring segment implantation to treat moderate to severe keratoconus显示文摘 | Islam M. Hamdi | 2011 | Journal of Cataract & Refractive Surgery2011,,6: | 1 |
| 15 | Semirigid Ureteroscopy for Ureteral Stones: A Multivariate Analysis of Unfavorable Results显示文摘 | Ahmed R. El-Nahas Nasr A. El-Tabey Ibrahim Eraky Ahmed M. Shoma Ahmed S. El-Hefnawy Ahmed M. El-Assmy Shady Soliman Ramy F. Youssef Mahmoud R. El-Kenawy Ahmed A. Shokeir Hamdy A. El-Kappany | 2009 | The Journal of Urology2009,,3: | 1 |
| 16 | WEIGHTED PSEUDO ALMOST-PERIODIC SOLUTIONS OF SHUNTING INHIBITORY CELLULAR NEURAL NETWORKS WITH MIXED DELAYS显示文摘In this paper,we prove the existence and the global exponential stability of the unique weighted pseudo almost-periodic solution of shunting inhibitory cellular neural networks with mixed time-varying delays comprising different discrete and distributed time delays.Some sufficient conditions are given for the existence and the global exponential stability of the weighted pseudo almost-periodic solution by employing fixed point theorem and differential inequality techniques.The results of this paper complement the previously known ones.Finally,an illustrative example is given to demonstrate the effectiveness of our results. | Mohammed Salah M'HAMDI Chaouki AOUITI Abderrahmane TOUATI Adel M. ALIMI Vaclav SNASEL | 2016 | Acta Mathematica Scientia2016,36,6: | 1 |
| 17 | Performances comparison between laboratory and full-scale anaerobic digesters treating a mixture of primary and waste activated sludge显示文摘 | H. Bouallagui L. Marouani M. Hamdi | 2010 | Resources, Conservation & Recycling2010,,1: | 1 |
| 18 | Percutaneous nephrolithotomy in treatment of large stones within horseshoe kidneys显示文摘 | Ahmed A. Shokeir Ahmed R. El-Nahas Ahmed M. Shoma Ibrahim Eraky Mahmoud El-Kenawy Alaa Mokhtar Hamdy El-Kappany | 2004 | Urology2004,,3: | 1 |
| 19 | Factors Affecting Stone-free Rate and Complications of Percutaneous Nephrolithotomy for Treatment of Staghorn Stone显示文摘 | Ahmed R. El-Nahas Ibrahim Eraky Ahmed A. Shokeir Ahmed M. Shoma Ahmed M. El-Assmy Nasr A. El-Tabey Shady Soliman Ahmed M. Elshal Hamdy A. El-Kappany Mahmoud R. El-Kenawy | 2012 | Urology2012,,6: | 1 |
| 20 | Effect of Precision Error on T-scores and the Diagnostic Classification of Bone Status显示文摘 | Gary M. Kiebzak Kenneth G. Faulkner Wynn Wacker Ronald Hamdy Edith Seier Nelson B. Watts | 2007 | Journal of Clinical Densitometry2007,,3: | 1 |