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Delayed Pseudoaneurysms of Vertebral Artery Post Penetrating Trauma: A Case Report

Case Reports in Clinical Medicine 2024年第4期13卷 95-100页

作者： ahmad rezaee azandariani Leili Ebrahimi Farsangi Mohammad Mahdi Talimkhani Department of Radiology School of Medicine Besat Hospital Hamadan Iran Cardiology Department Albirz University of Medical Science Karaj Iran School of Medicine Hamadan University of Medical Sciences Hamadan Iran

Objective: Vascular injuries usually present immediately after the penetration, but the delayed onset of vascular symptoms caused by vessel dissection or aneurysm after a traumatic event is extremely rare. Vertebral artery injury is a low-frequency but high-mortality injury. We aim to report evidence of delayed onset of vascular symptoms following penetrating trauma in the neck. Materials and Methods: A case report. Results: A 19-year-old boy was referred to our hospital and complained of a mass in the right part of his neck (right mandibular angle). He gave a history of penetrating trauma to his neck 2 months ago. The mass was expanding during these 2 months and doesn’t respond to antibiotic therapy. In the examination, 3 × 3 cm, firm, nonmobile, and without tenderness and pain mass was palpated in the second level of his neck. Doctors ordered a Doppler sonography in the hospital where a yin-yang pattern was reported. A 36 × 43 × 40 mm heterogeneous, solid, and hypodense area close to C1-C2-C3 with vascular flow was discovered in the right submandibular area after computed tomography (CT)-angiography. The patient was referred to an interventional neurologist for angiography and due to the lack of flow at the distal of the V3 segment, he decided to sacrifice this artery by two coils. Conclusion: Penetrating neck injuries are usually asymptomatic, but these injuries are often accompanied by hemorrhage, neurological symptoms, dysphagia, odynophagia, and windpipe. Penetrating lesions of the vertebral artery are rare and very difficult to diagnose. Also, these lesions are challenging for surgeons due to complex anatomy and difficult surgical exposure. So, endovascular treatment was used to treat the patient.

关键词： Penetrating Trauma Delayed Pseudoaneurysms Vertebral Artery

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Primary liver cancer spectrum:current knowledge and the next steps

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Hepatobiliary Surgery and Nutrition 2024年第1期13卷 157-160页

作者： Mohammad Saeid rezaee-Zavareh Ekaterina K.Koltsova Yujin Hoshida Ju Dong Yang Middle East Liver Diseases Center TehranIran Cedars-Sinai Cancer Smidt Heart InstituteCedars-Sinai Medical CenterLos AngelesCAUSA Division of Digestive and Liver Diseases Department of Internal MedicineUniversity of Texas Southwestern Medical CenterDallasTXUSA Karsh Division of Gastroenterology and Hepatology Cedars-Sinai Medical CenterLos AngelesCAUSA Comprehensive Transplant Center Cedars-Sinai Medical CenterLos AngelesCAUSA Samuel Oschin Comprehensive Cancer Institute Cedars-Sinai Medical CenterLos AngelesCAUSA

Hepatocellular carcinoma(HCC)and intrahepatic cholangiocarcinoma(iCCA)constitute the main subtypes of primary liver cancers(PLCs)as a major cause of cancer-related mortality and *** emerge from varying quantities and levels of differentiation among major liver cells,comprising hepatocytes,mucin-or non-mucin-producing cholangiocytes,and hepatic progenitor cells(HPCs)with the capability to differentiate into either hepatocytes or cholangiocytes.

关键词： Liver cancer spectrum hepatocellular carcinoma(HCC) cholangiocarcinoma(CCA) integrated analysis

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Numerical Modelling Investigation of Wave Interaction on Composite Berm Breakwater

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China Ocean Engineering 2021年第5期35卷 631-645页

作者： Seyed Morteza MARASHIAN Mehdi ADJAMI ahmad rezaee MAZYAK Water and Environmental Engineering Department Faculty of Civil EngineeringShahrood University of TechnologyShahroodIran Faculty of Civil and Environmental Engineering Tarbiat Modares UniversityTehranIran

The breakwaters have experienced many changes during their construction *** changes have been considered to improve their performance,depending on their environmental conditions and *** modelling was conducted using FLOW-3 D *** this study,the wave overtopping from composite berm breakwater as new conceptual structure and the pressure imposed on the composite berm breakwater are considered and *** results show a decrease of 84.01,70.88 and 61.42 percent of the wave overtopping in the composite berm breakwater,in comparison to the rubble mound breakwater,horizontally caisson breakwater and caisson breakwater,***,the pressure applied to the composite berm breakwater with the pressure applied to the horizontally caisson breakwater was compared and *** berm breakwater compared with horizontally caisson breakwater in P1,the amount of the obtained pressure decreased by 52.09%,in P2 the amount of the obtained pressure decreased by 63.07%,in P3 decreased by 76.09%and in Pu,this pressure reduced by53.92%.For the composite berm breakwater,the impact of three types of berms,homogenous berm(Type 1),a berm consisting of armor-filter(Type 2)and multi-layer berm(Type 3)with the aim of optimizing the hydraulic responses and wave interaction on the caisson of the breakwater was examined and *** total,Type 3 will be recommended with a significant reduction in the overtopping values and maximum pressure.

关键词： composite berm breakwater wave interaction berm breakwater wave overtopping pressure rubble mound breakwater horizontally caisson breakwater caisson breakwater

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Theoretical study of failure in composite pressure vessels subjected to low-velocity impact and internal pressure

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Frontiers of Structural and Civil Engineering 2020年第6期14卷 1349-1358页

作者： Roham RAFIEE Hossein RASHEDI Shiva rezaee Composites Research Laboratory Faculty o f New Science&TechnologiesUniversity o f TehranTehran ***Iran

A theoretical solution is aimed to be developed in this research for predicting the failure in internally pressurized composite pressure vessels exposed to low-velocity *** in-plane and out-of-plane failure modes are taken into account simultaneously and thus all components of the stress and strain fields are *** this purpose,layer-wise theory is employed in a composite cylinder under internal pressure and low-velocity *** stress/strain components are fed into appropriate failure criteria for investigating the occurrence of *** case of experiencing any in-plane failure mode,the evolution of damage is modeled using progressive damage modeling in the context of continuum damage ***,mechanical properties of failed ply are degraded and stress analysis is performed on the updated status of the *** the event of delamination occurrence,the solution is *** obtained results are validated with available experimental observations in open *** is observed that the sequence of in-plane failure and delamination varies by increasing the impact energy.

关键词： composite pressure vessel low-velocity impact failure theoretical solution progressive damage modeling

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FREE VIBRATION ANALYSIS OF SIMPLY SUPPORTED BEAM WITH BREATHING CRACK USING PERTURBATION METHOD

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Acta Mechanica Solida Sinica 2010年第5期23卷 459-470页

作者： Mousa rezaee Reza Hassannejad Department of Mechanical Engineering University of Tabriz

In this paper, a new analytical method for vibration analysis of a cracked simply supported beam is investigated. By considering a nonlinear model for the fatigue crack, the governing equation of motion of the cracked beam is solved using perturbation method. The solution of the governing equation reveals the superhaxmonics of the fundamental frequency due to the nonlinear effects in the dynamic response of the cracked beam. Furthermore, considering such a solution, an explicit expression is also derived for the system damping changes due to the changes in the crack parameters, geometric dimensions and mechanical properties of the cracked beam. The results show that an increase in the crack severity and approaching the crack location to the middle of the beam increase the system damping. In order to validate the results, changes in the fundamental frequency ratios against the fatigue crack severities are compared with those of experimental results available in the literature. Also, a comparison is made between the free response of the cracked beam with a given crack depth and location obtained by the proposed analytical solution and that of the numerical method. The results of the proposed method agree with the experimental and numerical results.

关键词： free vibration cracked beam breathing crack damping factor perturbation method

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A NEW APPROACH TO FREE VIBRATION ANALYSIS OF A BEAM WITH A BREATHING CRACK BASED ON MECHANICAL ENERGY BALANCE METHOD

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Acta Mechanica Solida Sinica 2011年第2期24卷 185-194页

作者： Mousa rezaee Reza Hassannejad Department of Mechanical Engineering University of Tabriz

In this paper, a new approach to free vibration analysis of a cracked cantilever beam is proposed. By considering the effect of opening and closing the crack during the beam vibration, it is modeled as a fatigue crack. Also, local stiffness changes at the crack location are considered to be a nonlinear amplitude-dependent function and it is assumed that during one half a cycle, the frequencies and mode shapes of the beam vary continuously with time. In addition, by using the experimental tests, it is shown that the local stiffness at the crack location varies continuously between the two extrerae values corresponding to the fully closed and the fully open cases of the crack. Then, by using the mechanical energy balance the dynamic response of the cracked beam is obtained at every time instant. The results show that for a specific crack depth, by approaching the crack location to the fixed end of the beam, more reduction in the fundamental frequency occurs. Furthermore, for a specific crack location, the fundamental frequency diminishes and the nonlinearity of the system increases by increasing the crack depth. In order to validate the results, the variations of the fundamental frequency ratio against the crack location axe compared with experimental results.

关键词： free vibration fatigue crack beam amplitude-dependent local stiffness superhar-monic time-dependent mode

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Sweet-spot mapping through formation evaluation and property modelling using data from the Goldwyer Formation of the Barbwire Terrace,Canning Basin

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Petroleum 2019年第1期5卷 13-29页

作者： Munther Alshakhs Reza rezaee Curtin University Petroleum Engineering Department26 Dick Perry AvenueKensingtonWA6152Australia

The Goldwyer Formation of the Canning Basin has been regarded as a highly prospective shale *** study assesses the potential prospectivity of this source rock as an unconventional hydrocarbon *** the sparsity of wells penetrating the Middle Ordovician Goldwyer across the vast underexplored area of the Canning Basin,a basin-wide study of the source rock is not *** assessment of the Barbwire Terrace,a subdivision of the Canning Basin,is carried out *** assessment includes the estimation of key shale play properties,such as,total organic carbon,total porosity,water saturation,and brittleness *** property was estimated from available well data by testing multiple estimation *** values were derived from multiple regressions of different well data.A simplified Archie's equation was used to estimate water *** porosity method was primarily used for total porosity *** data along with density were utilized to estimate brittleness *** property was then modelled across the Goldwyer Formation within the *** provided geostatistical estimates on the propagation of such *** order to generate sweet spot maps for the Barbwire Terrace,averaged maps of different properties were combined in a weighted *** approach attempts to simplify the complexity of unconventional resource assessment,which therefore has provided a single product evaluating the prospectivity of the Goldwyer as a hydrocarbon *** have shown that TOC and porosity are mostly the deciding factors for the prospectivity of this source rock,given that their values can be too small where the Goldwyer is deemed ***,sweet-spot maps show that most prospective zone is the Upper Goldwyer(Goldwyer I),followed by the upper parts of the Lower Goldwyer(Goldwyer III).More specifically,southern flanks of north-western and middle regions of the Barbwire Terrace tend to be more pr

关键词： Sweet-spot maps Formation evaluation Petrophysical modelling

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Effect of particle size on high-pressure methane adsorption of coal

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Petroleum Research 2016年第1期1卷 53-58页

作者： Jie Zou Reza rezaee Department of Petroleum Engineering Curtin UniversityWestern AustraliaAustralia

Adsorbed gas cannot be neglected in the evaluation of coalbed methane and shale gas since a significant proportion of gas is stored in the form of adsorbed *** methane of coal and shale has been widely studied by high-pressure methane adsorption *** sample treatment of the experiment,the sample is crushed and sieved to a particular particle size ***,how particle size influence high-pressure methane adsorption is still *** this study,low-pressure nitrogen(N_(2))and high-pressure methane adsorption have been measured on coal samples with different particle *** to N2 sorption analysis,pore volume and surface area increase with particle size *** size distribution of small pores(10nm)decreases with decreasing particle *** particle size by crushing sample introduces new connectivity for closed pores to the particle *** responses of isotherms of high-pressure methane adsorption are different with different particle *** adsorption at initial pressure(145psi)increases with decreasing particle *** increase rate at high pressure(435-870psi)decreases with particle size *** can be explained that fine sample has more pore volume and higher pore volume proportion of small pores(<10nm).Sample with particle size of 150-250μm has the highest Langmuir volume.

关键词： particle size high-pressure methane adsorption coal shale gas

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A new integrated approach to resolve the saturation profile using high-resolution facies in heterogenous reservoirs

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Petroleum 2022年第3期8卷 318-331页

作者： Abdelrahman Elkhateeb Reza rezaee Ali Kadkhodaie WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthAustralia Earth Sciences Department Faculty of Natural SciencesUniversity of TabrizTabrizIran

The saturation calculation in complex reservoirs remains a major challenge to the oil and gas *** simple formations,a tendency towards simple saturation models such as Archie or Simandoux for clean and shaly reservoirs respectively is always *** models were found to be working effectively in homogeneous formations within which the porosity and permeability are linked in the light of a simple facies *** the rocks show some degrees of heterogeneity,the well-logs are usually affected by different *** adversely results in a compromised or averaged log profiles that may affect the saturation *** wells drilled across a shaly sand of high heterogeneity have been studied in the Perth Basin,Western *** aim is to resolve the hydrocarbon saturation and explain the high productivity results,despite the high water saturation,obtained through a conducted formation well test across the interested reservoir zones.A new integration technique between a suite of conventional and advanced logging tools together with the capillary pressure measurements has been carried out to generate a high-resolution reservoir saturation profile,that is lithofacies *** different independent methods were used in the studied wells to calculate the saturation and to reduce the uncertainty of the final estimated *** methods are the resistivity-based saturation,the NMR-based irreducible saturation,and a new application through saturation height ***,through the workflow,an effective calibration for the magnetic resonance T2 cutoff has been applied that is supported by the excellent reservoir production behavior from such complex *** methodology will help resolve the saturation calculation as one of the most challenging reservoir parameters,particularly where the resistivity logs are affected in complicated shaly sand *** effectiveness of the workflow shines the possibility to predict h

关键词： Reservoir facies Permeability Hydraulic flow units Formation evaluation Shaly sand Saturation height modeling

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A randomized nonmonotone adaptive trust region method based on the simulated annealing strategy for unconstrained optimization

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International Journal of Intelligent Computing and Cybernetics 2019年第3期12卷 389-399页

作者： Saman Babaie-Kafaki Saeed rezaee Department of Mathematics Semnan UniversitySemnanIran

Purpose–The purpose of this paper is to employ stochastic techniques to increase efficiency of the classical algorithms for solving nonlinear optimization ***/methodology/approach–The well-known simulated annealing strategy is employed to search successive neighborhoods of the classical trust region(TR)***–An adaptive formula for computing the TR radius is suggested based on an eigenvalue analysis conducted on the memoryless Broyden-Fletcher-Goldfarb-Shanno updating ***,a(heuristic)randomized adaptive TR algorithm is developed for solving unconstrained optimization *** of computational experiments on a set of CUTEr test problems show that the proposed randomization scheme can enhance efficiency of the TR *** implications–The algorithm can be effectively used for solving the optimization problems which appear in engineering,economics,management,industry and other ***/value–The proposed randomization scheme improves computational costs of the classical TR ***,the suggested algorithm avoids resolving the TR subproblems for many times.

关键词： Nonlinear programming Simulated annealing Adaptive radius Trust region method,Unconstrained optimization

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