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Abdolhossein Ayoubi,Moharram Kazemi,Mohammad Sadegh Sanie,Saman Sobh Heydari 보안공학연구지원센터 2016 International Journal of Bio-Science and Bio-Techn Vol.8 No.2
This paper studies the synchronization of SA and AV Node Oscillators using PSO optimized RBF-based controllers systems. High levels of control activities may excite unmodeled dynamics of a system. This matter changes the rules of controlling the system and achieving an acceptable control performance. In fact, the objective here is to reach a trade-off between tracking performance and parametric uncertainty. Two methods are proposed to synchronize the general forms of Van Der Pol (VDP) Model and their performance. These methods use the radial basis function (RBF)- based neural controllers for this purpose. The first method uses a standard RBF neural controller. Particle swarm optimization (PSO) algorithm is used to derive and optimize the parameters of the RBF controller. In the second method, with the aim of increasing the robustness of the RBF controller, an error integral term is added to the equations of RBF neural network. For this method, the coefficients of the error integral component and the parameters of RBF neural network are also derived and optimized via PSO algorithm. For better comparison, simulation results show the effectiveness and superiority of the proposed methods in both performances in comparison with SMC controller.
Data Transfer among Urology Research Centers in Universities of Medical Sciences
Abdolhossein Ayoubi,Mohammad Sadegh Sanie,Moharram Kazemi,Saman Sobh Heydari 보안공학연구지원센터 2016 International Journal of Bio-Science and Bio-Techn Vol.8 No.1
This paper studies Health Information System (HIS) for administrative automation by the use of library and internet resources .The Goal is to identify valid urology research centers in the country so that scientific communications be increased; indeed idea exchange, technology and up-to-date urology knowledge be achieved .Thus, we will be able to promote the science level and to search novel diagnostic methods and to treat urology diseases especially kidney disease. There have been some collaborations with executive-research centers in the country in order to do some researches in urology field of study [1]. The method applied here is making use of different data transfer styles to clarify which one is suitable for urology research centers. Finally, it can be declared as conclusion that an available health information system brings a better decision making in the treatment processes and develops therapeutic results. The contribution of this study is significant when management of Information is on the focus in health systems.
Baharak Ayoubi-Feiz,Soheil Aber 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.10
A conductive activated charcoal plate (ACP) was prepared from a low-cost, abundant, and non-conductive charcoal. The prepared ACP was characterized using N2 adsorption/desorption isotherms, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Brunauer-Emmett-Teller (BET) surface area of the charcoal and the ACP was 0.58m2 g−1 and 461.67m2 g−1, respectively. The ACP was employed in textile wastewater treatment using electrosorption process. Response surface methodology (RSM) was applied to design the experiments. The decolorization efficiency of 76% at optimum conditions of voltage=450mV, pH=4, and contact time=120 min indicated that the ACP has promising potential to decolorize textile wastewater. Moreover, the results of the kinetic analyses demonstrated that wastewater treatment followed pseudo-first order kinetic model. The ACP electrode could be regenerated and reused effectively at five successive cycles of electrosorption/electrodesorption.
Robotic versus laparoscopic revisional bariatric surgeries: a systematic review and metanalysis
Karim Ataya,Hussein El Bourji,Ayman Bsat,Amir Al Ayoubi,Al Moutuz Al Jaafreh,George Abi Saad 대한내시경로봇외과학회 2023 Journal of Minimally Invasive Surgery Vol.26 No.4
Purpose: In recent years, the need for revisional bariatric surgery (RBS) procedures has experienced a noteworthy surge to confront complexities and weight recidivism. Despite being a subject of controversy for many, the utilization of the Da Vinci robotic platform (Intuitive Surgical, Inc.) may present benefits in RBS. This study aimed to evaluate the outcomes of robotic RBS in comparison to Laparoscopic RBS. Methods: A meticulous and thorough analysis was ensured through a comprehensive exploration of the literature, which included PubMed, Medline, Scopus, and Cochrane. This exploration was conducted in adherence to the directives outlined in the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The Newcastle- Ottawa scale was used for quality assessment. Results: A total of 11 studies were included in this meta-analysis, comprising 55,889 in the laparoscopic group and 5,809 in the robotic group. No significant differences were observed in the leak, bleeding, operative time, or length of stay across both groups. However, the robotic group showed higher rates of conversion to open surgery (odds ratio [OR], 0.65; 95% confidence interval [CI], 0.53–0.79; p < 0.0001; I2 = 0%), reoperation (OR, 0.70; 95% CI, 0.57– 0.87; p = 0.0009; I2 = 6%), and readmission (higher rate of readmission in the robotic group; OR, 0.76; 95% CI, 0.62–0.92; p = 0.005; I2 = 30%) Conclusion: Robotic-assisted bariatric surgery has no significant advantage over conventional laparoscopic surgery. Further research is warranted to explore and evaluate surgeons’ methodology and proficiency differences.