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Severe unilateral congenital ptosis with poor levator function:tarsoconjunctival mullerectomy plus levator resection vs frontalis sling procedure

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International Journal of Ophthalmology(English edition) 2022年第8期15卷 1254-1260页

作者： Abolfazl Kasaee Mostafa Aliabadi Laily Najafi mansooreh jamshidian-tehrani Farabi Eye Hospital Tehran University of Medical Sciences(TUMS)Tehran ***Iran Endocrine Research Center Institute of Endocrinology and MetabolismIran University of Medical Sciences(IUMS)Tehran ***Iran Ophthalmic Plastic Surgery Farabi Eye HospitalTehran University of Medical Sciences(TUMS)Tehran ***Iran

AIM:To compare frontalis sling and tarsoconjunctival mullerectomy plus levator resection(TCMLR)in subjects with severe unilateral congenital ptosis with poor levator function(LF).METHODS:A prospective non-randomized nonblinded single center clinical *** patients with severe unilateral congenital ptosis with poor LF were *** frontalis sling and TCMLR were performed and the functional,cosmetic outcomes,complications,and success rate were evaluated at 1,3,and 6mo *** t-test,Chi-square,Fishers exact,and nonparametric MannWhitney tests were used by SPSS ***:Frontalis sling and TCMLR procedures were performed on 26 and 24 patients *** mean age was 10.97±*** was significantly better in the TCMLR group at months 1,3,and 6(P=0.002).Lagophthalmos was more common in the TCMLR group(no significant difference).At month 3,mild punctate epithelial erosions were observed more in the frontalis sling group(P=0.002).Significant complete success rate of 1st and 6th month for the frontalis sling vs TCMLR groups were 50%vs 20.8%(P=0.02),and 38.4%vs 50%(P=0.03)***:Complete success rate of TCMLR is higher in long-term follow-up in contrast with the frontalis sling in the *** complications are more detected in mid-term follow-ups in both groups.

关键词： tarsoconjunctival mullerectomy levator resection frontalis sling congenital ptosis

Normal Crossings Singularities for Symplectic Topology:Structures

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Acta Mathematica Sinica,English Series 2024年第1期40卷 107-160页

作者： Mohammad FARAJZADEH-tehrani Mark MCLEAN Aleksey ZINGER The University of Iowa MacLean HallIowa CityIA 52241 Department of Mathematics Stony Brook UniversityStony BrookNY 11794

Our previous papers introduce topological notions of normal crossings symplectic divisor and variety,show that they are equivalent,in a suitable sense,to the corresponding geometric notions,and establish a topological smoothability criterion for normal crossings symplectic *** present paper constructs a blowup,a complex line bundle,and a logarithmic tangent bundle naturally associated with a normal crossings symplectic divisor and determines the Chern class of the last *** structures have applications in constructions and analysis of various moduli *** a corollary of the Chern class formula for the logarithmic tangent bundle,we refine Aluffi’s formula for the Chern class of the tangent bundle of the blowup at a complete intersection to account for the torsion and extend it to the blowup at the deepest stratum of an arbitrary normal crossings divisor.

关键词： Normal crossings divisor Chern class Logarithmic tangent bundle

Effect of Intrauterine Laser Therapy at the IVF Success Rate on Infertile Patients with a History of IVF Failure: A Pilot Non-Blinded Study

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Advances in Sexual Medicine 2024年第3期14卷 21-30页

作者： Fateme Hoseinzade Hatav tehrani Shahriyar Mirshams Yasaman Zandi Mehran Michael Hans Weber Department of Physical Medicine and Rehabilitation Isfahan University of Medical Sciences Isfahan Iran Department of Obstetrics and Gynecology Isfahan University of Medical Sciences Isfahan Iran Department of Physical Medicine and Rehabilitation Novin Comprehensive Physical Medicine Center Isfahan Iran Biomedical Engineering Center Dubai UAE International Society of Medical LASER Applications Lauenfoerde Germany

Backgrounds: While there’s developing proof aimed toward improving embryo implantation thru a focal point on great development, restrained studies have been performed on enhancing endometrial receptivity. Intrauterine Laser Therapy (LT) can be powerful in selling endometrial cell proliferation, therefore enhancing the achievement of assisted reproductive techniques (ART). The contemporary look at aimed to research the effectiveness of effective intrauterine lasers in growing endometrial thickness and the achievement of being pregnant rate. Materials and Methods: In the current clinical randomized trial (RTC) study, the infertile women (20 - 42 years old) referred to the infertility clinic in 2023-2024 who were candidates for IVF treatment with recurrent implantation failure (RIF) history were included. The patients were divided into two main groups: the intervention group;low level laser therapy (LLLT) after hormone administration) (n = 52) and the control group (hormone administration without LT) (n = 52). The IVF success rate and change in endometrial thickness before and after the LT were compared in groups. Results: There was a significant difference between groups (p Conclusion: It appears that the incorporation of Intrauterine LT in the realm of infertility could significantly impact as a novel supplementary treatment in improving endometrial receptivity and pregnancy rate.

关键词： Infertility IVF Implementation Intrauterine Low Level Laser Therapy

Effect of extrusion process on microstructure and mechanical and corrosion properties of biodegradable Mg-5Zn-1.5Y magnesium alloy

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International Journal of Minerals,Metallurgy and Materials 2022年第3期29卷 490-502页

作者： Hassan Jafari Amir Houshang Mojiri tehrani Mojiri tehrani Mahsa Heydari Materials Engineering Department Faculty of Materials Engineering and Interdisciplinary ScienceShahid Rajaee Teacher Training University16785-136 TehranIran

The effect of extrusion temperature and ratio on the microstructure, hardness, compression, and corrosion behavior of Mg-5Zn-1.5Y alloy were analyzed in this study. The microstructural observations revealed that the cast alloy consists of α-Mg grains, and Mg3Zn6Y and Mg3Zn3Y2 intermetallic compounds, mostly located on the α-Mg grain boundaries. Extruded alloy at higher temperatures showed coarser grain microstructures, whereas those extruded at higher ratios contained finer ones, although more dynamic recrystalized grains with lower intermetallics were measured at both conditions. Combined conditions of the lower temperature (340°C) and higher ratio (1:11.5) provided higher compressive strengths. However, no significant hardness improvement was achieved. The extrusion process could decrease the corrosion rate of the cast alloy in simulated body fluid for over 80% due to primarily the refined microstructure. The extrusion temperature showed a more pronounced effect on corrosion resistance compared to the extrusion ratio, and the higher the extrusion temperature, the higher the corrosion resistance.

关键词： magnesium alloy biodegradable extrusion microstructure mechanical properties corrosion

Airborne GNSS-Receiver Threat Detection in No-Fading Environments

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Journal of Beijing Institute of Technology 2022年第6期31卷 613-620页

作者： Omid Sharifi-tehrani Department of Electrical and Communication Engineering Imam Hussein Comprehensive UniversityTehranIran.

Jamming and spoofing detection of global navigation satellite systems(GNSS)is of great *** and military aerial platforms use GNSS as main navigation systems and these systems are main target of threat *** this paper a simple method based on different empirical probability density functions of successive received signal powers and goodness of fit tech-nique is proposed for airborne platforms such as unmanned aerial vehicle(UAV),in no fading *** two different paths between UAV-satellite and UAV-threat,experience different empirical probability density functions which can be used to distinguish between authentic and threat *** results including detection and false alarm probabilities show good perfor-mance of proposed method as well as low computational burden.

关键词： detection global navigation satellite systems(GNSS) jamming spoofing unmanned aerial vehicle

Sensitivity Analysis of Pollutants and Pattern Factor in a Gas Turbine Model Combustor due to Changes in Stabilizing Jets Characteristics

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Journal of Thermal Science 2022年第5期31卷 1622-1641页

作者： BAZDIDI-tehrani Farzad TEYMOORI Alireza GHIYASI Mehdi School of Mechanical Engineering Iran University of Science and TechnologyTehran16846-13114Iran

In the present paper,a sensitivity analysis of pollutants and pattern factor in a model combustor due to changes in the geometrical characteristics of stabilizing jets has been carried *** exhaust pollutants including NO_(x),CO and soot have been chosen due to their harmful effect on the *** pattern factor has been also considered owing to its impact on turbine *** geometrical characteristics comprise diameter,angle and position of stabilizing ***-Lagrangian approach has been employed to model liquid fuel injection and distribution,breakup and evaporation of *** the analysis of reactive-spray flow characteristics,RANS approach,realizable k-εturbulence model,discrete ordinates radiative heat transfer model and steady flamelet combustion model together with the chemical reaction mechanism of diesel fuel(C_(10)H_(22))have been ***_(x) modeling has been performed via *** analysis is such that by making variations in the problem inputs(diameter,angle and position of jets)in an organized manner,the effects on the outputs(NO_(x),CO,soot and pattern factor)are *** number and order of simulations are predicted by design of experiments and full factorial *** have been analyzed using analysis of *** has been observed that if interactions among the characteristics of jets are considered,it is possible to analyze the exhaust pollutants more *** fact,by using the interactions,it is likely to find a point where all output parameters are *** show that by considering interactions of stabilizing jet characteristics,the maximum values of NO_(x),CO,soot and pattern factor change from 13.927 ppm,11.198%mole fraction,2.877 ppm and 0.043 to 26.233 ppm,14.693%mole fraction,142.357 ppm and 0.060,***,the minimum values change from 5.819 ppm,7.568%mole fraction,0.013 ppm and 0.029 to 6.098 ppm,5.987%mole fraction,0.002 ppm and 0.027,respectively.

关键词： model jet-stabilized combustor liquid fuel injection sensitivity analysis design of experiments pollutants pattern factor

Grayscale image statistics of COVID-19 patient CT scans characterize lung condition with machine and deep learning

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Chronic Diseases and Translational Medicine 2022年第3期8卷 191-206页

作者： Sara Ghashghaei David A.Wood Erfan Sadatshojaei mansooreh Jalilpoor Medical School Shiraz University of Medical SciencesShirazIran Deparment of Research DWA Energy LimitedLincolnLN59JPUK Department of Chemical Engineering Shiraz UniversityShiraz71345Iran

Background:Grayscale image attributes of computed tomography(CT)of pulmonary scans contain valuable information relating to patients with respiratory *** attributes are used to evaluate the severity of lung conditions of patients confirmed to be with and without ***:Five hundred thirteen CT images relating to 57 patients(49 with COVID-19;8 free of COVID-19)were collected at Namazi Medical Centre(Shiraz,Iran)in 2020 and *** visual scores(VS:0,1,2,3,or 4)are clinically assigned to these images with the score increasing with the severity of COVID-19-related lung *** deep learning and machine learning techniques(DL/ML)are used to distinguish the VS class based on 12 grayscale image ***:The convolutional neural network achieves 96.49%VS accuracy(18 errors from 513 images)successfully distinguishing VS Classes 0 and 1,outperforming clinicians’visual *** algorithmic score(AS),involving just five grayscale image attributes,is developed independently of clinicians’assessments(99.81%AS accuracy;1 error from 513 images).Conclusion:Grayscale CT image attributes can be successfully used to distinguish the severity of COVID-19 lung *** AS technique developed provides a suitable basis for an automated system using ML/DL methods and 12 image attributes.

关键词： computed tomography analysis confusion-matrix analysis COVID-19 lung feature recognition grayscale image attributes visual versus algorithmic classification

Activated Hard Shell of Apricot Stones： A Promising Adsorbent in Gold Recovery

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Chinese Journal of Chemical Engineering 2008年第1期16卷 112-118页

作者： mansooreh Soleimani Tahereh Kaghazchi Faculty of Chemical Engineering AmirKabir University of Technology Tehran 15875-4413 Iran

活性炭被证明了是为从水溶液的许多金属离子的恢复的有效吸附物。在这研究，伊朗的李属石头的激活的难壳从 electro-plating 废水被用于金恢复。象吸附物的剂量和粒子大小那样的参数的效果，最适 PH，在金恢复上混合的焦虑速度被调查。... 详细信息

活性炭被证明了是为从水溶液的许多金属离子的恢复的有效吸附物。在这研究，伊朗的李属石头的激活的难壳从 electro-plating 废水被用于金恢复。象吸附物的剂量和粒子大小那样的参数的效果，最适 PH，在金恢复上混合的焦虑速度被调查。结果证明在最佳操作条件下面，超过 98% 金离子在就 3 h 以后被吸附到活性炭上。另外，吸附的金牌能是从由剥去方法改进的这吸附物的 eluted。这个过程在缓冲冼脱与包含有机溶剂的水溶液跟随的环境温度与强碱包含黄金沉重的吸附物的接触。它被发现李属石头的那激活的难壳代替的潜力在黄金进口了商业活性炭吸附过程。

关键词：杏核活性壳黄金回收价值吸附剂

Micromechanical simulation and experimental investigation of aluminum-based nanocomposites

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Defence Technology（防务技术） 2021年第1期17卷 196-201页

作者： Mohammad Javad Ghasemi Mohammad Silani Ali Maleki Mostafa jamshidian Department of Mechanical Engineering Isfahan University of TechnologyIsfahan84156-83111Iran

Ceramic reinforced metal matrix nanocomposites are widely used in aerospace and auto industries due to their enhanced mechanical and physical *** this research,we investigate the mechanical properties of aluminum/Nano-silica composites through experiments and ***/Nanosilica composite samples with different weight percentages of silica nanoparticles are prepared via powder *** this method,Nano-silica and aluminum powders are mixed and compressed in a mold,followed by sintering at high *** tensile testing of the nanocomposite samples shows that adding one percent of Nano-silica causes a considerable increase in mechanical properties of nanocomposite compared to pure aluminum.A computational micromechanical model,based on a representative volume element of aluminum/silica nanocomposite,is developed in a commercial finite element *** model employs an elastoplastic material model along with a ductile damage model for aluminum matrix and linear elastic model for nano-silica *** careful determination of model parameters from the experimental results of pure aluminum samples prepared by powder metallurgy,the proposed computational model has shown satisfactory agreement with *** validated computational model can be used to perform a parametric study to optimize the microstructure of nanocomposite for enhanced mechanical properties.

关键词： Aluminum/nano-silica composites Powder metallurgy Micromechanics