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Cap-assisted endoscopy for esophageal foreign bodies:A metaanalysis

World Journal of Meta-Analysis 2023年第1期11卷 38-46页

作者： zahid ijaz tarar Umer Farooq Matthew L Bechtold Yezaz A Ghouri Department of Internal Medicine University of MissouriColumbiaMO 65212United States Department of Medicine Loyola UniversityChicagoIL 60153United States Department of Medicine University of Missouri-ColumbiaColumbiaMO 65212United States Department of Internal Medicine Division of Gastroenterology and HepatologyUniversity of MissouriColumbiaMO 65212United States

BACKGROUND Esophageal foreign bodies are common around the *** approaches,such as cap-assisted endoscopy,have been introduced as an alternative to conventional ***,we performed a meta-analysis ono cap-assisted endoscopy versus conventional endoscopy for removal of esophageal foreign *** To investigated the effectiveness of cap-assisted endoscopy with conventional *** An extensive literature search was performed(December 2021).For esophageal foreign body removal,cap-assisted endoscopy was compared to conventional endoscopy for procedure time,technical success of the procedure,time of foreign body retrieval,en bloc removal,and adverse event rate using odds ratio and mean *** Six studies met the inclusion criteria(n=1305).Higher odds of technical success(P=0.002)and en bloc removal(P<0.01)and lower odds of adverse events(P=0.02)and foreign body removal time(P<0.01)were observed with cap-assisted endoscopy as compared to conventional *** For esophageal foreign bodies,the technique of cap-assisted endoscopy demonstrated increased en bloc removal and technical success with decreased time and adverse events as compared to conventional techniques.

关键词： Esophageal foreign body Food bolus Endoscopy Snares Forceps Assisted devices Capassisted endoscopy

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Entropy generation applications in flow of viscoelastic nanofluid past a lubricated disk in presence of nonlinear thermal radiation and Joule heating

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Communications in Theoretical Physics 2021年第9期73卷 37-50页

作者： Aamar Abbasi Waseh Farooq M ijaz Khan Sami Ullah Khan Yu-Ming Chu zahid Hussain M Y Malik Department of Mathematics University of Azad Jammu and Kashmir Muzaffarabad13100 Pakistan Department of Mathematics and Statistics Riphah International University I-14Islamabad 44000Pakistan Department of Mathematics COMSATS University IslamabadSahiwal 57000Pakistan Department of Mathematics Huzhou UniversityHuzhou 313000China Department of Mathematics College of SciencesKing Khalid UniversityAbha 61413Saudi Arabia

Entropy generation is the loss of energy in thermodynamical systems due to resistive forces,diffusion processes,radiation effects and chemical *** main aim of this research is to address entropy generation due to magnetic field,nonlinear thermal radiation,viscous dissipation,thermal diffusion and nonlinear chemical reaction in the transport of viscoelastic fluid in the vicinity of a stagnation point over a lubricated *** conservation laws of mass and momentum along with the first law of thermodynamics and Fick’s law are used to discuss the flow,heat and mass transfer,while the second law of thermodynamics is used to analyze the entropy and *** numbers of independent variables in the modeled set of nonlinear partial differential equations are reduced using similarity variables and the resulting system is numerically approximated using the Keller box *** effects of thermophoresis,Brownian motion and the magnetic parameter on temperature are presented for lubricated and rough *** local Nusselt and Sherwood numbers are documented for both linear and nonlinear thermal radiation and lubricated and rough *** representations of the entropy generation number and Bejan number for various parameters are also shown for lubricated and rough *** concentration of nanoparticles at the lubricated surface reduces with the magnetic parameter and Brownian *** entropy generation declines for thermophoresis diffusion and Brownian motion when lubrication effects are *** is concluded that both entropy generation and the magnitude of the Bejan number increase in the presence of *** current results present many applications in the lubrication phenomenon,heating processes,cooling of devices,thermal engineering,energy production,extrusion processes etc.

关键词： entropy generation viscoelastic fluid lubricated surface nonlinear thermal radiation Joule heating Keller box method

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Estimation of infiltration models parameters and their comparison to simulate the onsite soil infiltration characteristics

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International Journal of Agricultural and Biological Engineering 2019年第3期12卷 84-91页

作者： Hafiz Umar Farid zahid Mahmood-Khan ijaz Ahmad Aamir Shakoor Muhammad Naveed Anjum Muhammad Mazhar Iqbal Muhammad Mubeen Muhammad Asghar Department of Agricultural Engineering Bahauddin Zakariya UniversityMultan-Pakistan Center of Excellence in Water Resources Engineering(CEWRE) University of Engineering and TechnologyLahore-Pakistan Division of Hydrology Water-Land Resources in Cold and Arid Regions Cold and Arid Region Environmental and Engineering InstituteChinese Academy of SciencesLanzhou 730000China Graduate School of Water Resources Sungkyunkwan UniversitySuwon-si 2066Korea Department of Environmental Sciences COMSATS Institute of Information TechnologyVehari-Pakistan

Detailed knowledge about soil characteristics and site-specific final steady infiltration rate could help to increase the irrigation water use efficiency and decrease water losses in agricultural *** experiments were conducted on Agricultural Research Farm of Bahauddin Zakariya University,Multan,Pakistan during *** cumulative infiltration depth was measured using double ring infiltrometer at selected six points of the study *** commonly used infiltration models such as Kostikov’s,Philip’s and Horton’s were fitted to the field infiltration data for determination of model parameters and to find the best fit model for the study ***’s infiltration model’s parameters such as empirical constant‘c’and infiltration decay constants‘k’were obtained in the ranges of 0.140-0.290 and 0.307-0.433,***’s infiltration model’s parameters such as sorptivity‘S’and conductivity constant‘A’were found in the ranges of 0.167-0.288 cm/min1/2 and-0.001 to-0.009 cm/min,***,the Horton’s model’s‘parameter‘k’was obtained in the range of-1.619 *** value of infiltration capacity at onset of infiltration(fo)was obtained as 1.744 to 3.491 for all the six *** analysis showed that the infiltration models using the estimated parameters have satisfactory prediction capability at all the selected ***’s model provided the lowest mean values for RMSE(0.235)and highest mean values for ME(94%);and the lowest mean values for MPD(0.127).This indicated that infiltration can be well-described by the Horton’s model at the selected site.

关键词： infiltration characteristics infiltration models parameters estimation perdition capability

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