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| 1 | Control of a Two-wheeled Machine with Two-directions Handling Mechanism Using PID and PD-FLC Algorithms显示文摘This paper presents a novel five degrees of freedom (DOF) two-wheeled robotic machine (TWRM) that delivers solutions for both industrial and service robotic applications by enlarging the vehicle′s workspace and increasing its flexibility. Designing a two-wheeled robot with five degrees of freedom creates a high challenge for the control, therefore the modelling and design of such robot should be precise with a uniform distribution of mass over the robot and the actuators. By employing the Lagrangian modelling approach, the TWRM′s mathematical model is derived and simulated in Matlab/Simulink?. For stabilizing the system′s highly nonlinear model, two control approaches were developed and implemented: proportional-integral-derivative (PID) and fuzzy logic control (FLC) strategies. Considering multiple scenarios with different initial conditions, the proposed control strategies′ performance has been assessed. | Khaled M. Goher Sulaiman O. Fadlallah | 2019 | International Journal of Automation and computing2019,16,4: | 3 |
| 2 | Multifractal Analysis of Geochemical Stream Sediment Data in Bange Region, Northern Tibet显示文摘The aim of this study is to quantify the geochemical elements distribution patterns analyzed from stream sediment data and then to delineate favorable areas for mineral exploration. A total of 7 270 stream sediment samples were collected from four subareas and 37 rock(ore) chip samples from five different locations in the Bange region, northern Tibet(China). The multifractal spectra of 12 elements including Au, Ag, As, Cu, Mo, Pb, Zn, W, Sn, Bi, Sb and Hg are represented by the method of moments, and characterized by five quantitative multifractal parameters. The results show that the multifractality for Cu and Bi in the Gongma area is much stronger than those in other subareas. Both the asymmetry index of multifractal spectra and the variance coefficients of Cu and Bi in this area are the highest, which imply that the distribution pattern of Cu and Bi in the Gongma area is the most heterogeneous. These multifractal parameters indicate that the Gongma area is the most favorable for prospecting Cu and Bi. The results obtained by the method of moments are in agreement with petrochemical analysis and field observation. It is suggested that multifractal analysis can be used as an effective tool to evaluate the ore-forming potential in the study area and to provide new approaches for geochemical exploration. | Xianzhong Ke Shuyun Xie Youye Zheng Salah Fadlallah Awadelseid Shunbao Gao Liming Tian | 2015 | Journal of Earth Science2015,26,3: | 3 |
| 3 | Continued evidence for safety of endoscopic retrograde cholangiopancreatography during pregnancy显示文摘AIM: To report the safety of continued use of endoscopic retrograde cholangiopancreatography(ERCP) during pregnancy at various maternal ages.METHODS: A retrospective chart review of pregnant patients who underwent ERCP at a tertiary academic center was undertaken between 2002 and 2012. Pertinent past medical history and initial presenting laboratory data were collected. Review of the procedure note for each ERCP performed provided documentation of lead shielding, type of sedation, fluoroscopy time, and post-procedure complications. Patients' clinical courses were reviewed until the time of delivery and pregnancy complications with fetal outcomes were examined. Data was stratified based upon the mother's age at the time of ERCP: 18-21, 22-29, and ≥ 30 years of age.RESULTS: Twenty pregnant patients who underwent ERCP between 2002 and 2012 were identified. The mean age at the time of ERCP was 26.4 years(18-38 years) and the average trimester was the second. The indications for ERCP were choledocholithiasis in 17 patients, gallstone pancreatitis in 2 patients, and cholangitis in 1 patient. The mean fluoroscopy time of ERCP was 3.8 min(0.3-23.6 min). Sphincterotomy was performed in 18 patients with therapeutic intent and not as a prophylactic measure to prevent recurrences. Clinical documentation of use of protective shielding was found in only 8 notes(40%). Post procedure complications were limited to two cases of post-ERCP pancreatitis(10%). Elective cholecystectomy was performed shortly after ERCP in 11 of the pregnant patients. Birth records were available for 16 patients, of which 15 had fullterm pregnancies. Cesarean sections were performed in 5(31%) patients. Term birth weight was greater than 2500 g in all cases except one in which the mother had a known hypercoagulable state. CONCLUSION: ERCP during pregnancy is both safe and efficacious regardless of maternal age or trimester. | Sean Fine Joshua Beirne Silvia Delgi-Esposti Fadlallah Habr | 2014 | World Journal of Gastrointestinal Endoscopy2014,6,8: | 2 |
| 4 | Effect of Ri fampicin and gentamicin on shiga toxin 2 expression level and the SOS response in Escherichia coli O 104:H4显示文摘 | FADLALLAH S M RAHAL E A SABRA A | 2015 | Foodborne Pathog Dis2015,12,1: | 1 |
| 5 | Sexual reproduction, development and larval biology in scleractinian corals显示文摘 | FADLALLAH Y H | 1983 | Coral Reefs1983,2,3: | 1 |
| 6 | Transepithelial photorefrac-tive keratectomy: clinical results 显示文摘 | Fadlallah A Fahed D Khalil K | 2011 | J Cataract Refract Surg2011,37,10: | 1 |
| 7 | Transepithelial photorefractive kera-tectomy:Clinical results显示文摘 | Fadlallah A Fahed D Khalil K | 2011 | J Cataract Refract Surg2011,37,18: | 1 |
| 8 | Outcome of acute promyelocytie leukemia (APL) in children and adolescents: an analysis in two consecutive trials of the European APL Group 显示文摘 | Bally C Fadlallah J Leverger G | 2012 | J Clin Oncol2012,30,14: | 1 |
| 9 | Transepithelial photorefraetive kerateetomy:Clinical resuhs显示文摘 | Fadlallah A Fahed D Khalil K | 2011 | J Cataract Refract Surg2011,37,: | 1 |
| 10 | 查看详情显示文摘 | Hamieh T Fadlallah M B Schultz J | | 0,,01: | 1 |
| 11 | Reef coral survival and mortality at low temperatures in the Arabian Gulf: new sixties-specific lower temperaturelimits显示文摘 | Cales S L Fadlallah Y H | 1991 | Coral Reefs1991,9,4: | 1 |
| 12 | Outcome of acute promyelocytic leukemia(APL) in children and adolescents:an analysis in two consec- utive trials of the European APL Group 显示文摘 | Bally C Fadlallah J Leverger G | 2012 | J C/in Oncol2012,30,14: | 1 |
| 13 | DC/AC uni- fied OTFT compact modeling and circuit design for RFID applications 显示文摘 | Fadlallah M Billiot G Eccleston W | 2007 | Solid-State Electronics2007,51,7: | 1 |
| 14 | Outcome of acute promyelocytic leukemia (APL) in children and adolescents:an analysis in two consecutive trials of the European APL Group显示文摘 | Bally C Fadlallah J Leverger G | | 0,,14: | 1 |
| 15 | Transepithelial photorefractive keratectomy: clinical results显示文摘 | Fadlallah A Fahed D Khalil K | 2011 | J Cataract Refract Surg2011,37,10: | 1 |
| 16 | Safety and visual out- come of Visian ICL implantation after collagen cross-linking in keratocorus显示文摘 | Fadlallah A Dirani A EI Rami H | 2013 | J Refract Surg2013,29,2: | 1 |
| 17 | Comparison of 2 types of intrastromal corneal ring segments for keratoconus显示文摘 | Haddad W Fadlallah A Dirani A | | 0,,07: | 1 |
| 18 | Transepithelial photorefractive keratectomy: clinical results显示文摘 | Fadlallah A Fahed D Khalil K | 2011 | J Cataract Refract Surg2011,37,10: | 1 |
| 19 | A simple thermal CVD method for carbon nanotube synthesis on stainless steel 304 without the addition of an external catalyst显示文摘 | Baddour C E Fadlallah F Nasuhoglu D | 2008 | Carbon2008,47,12: | 1 |
| 20 | Thematic Mapping of Subtidal Coastal Habitats in the Western Arabian Gulf Using Landsat TM Data-Abu Ali Bay,Saudi Arabia显示文摘 | Khan M A Fadlallah Y H Al-Hinai K G | 1992 | International Journal of Remote Sensing1992,13,: | 1 |