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Modeling multi regional counter flow combustion of lycopodium dust cloud with considering radiative heat loss

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Journal of Central South University 2017年第11期24卷 2638-2648页

作者： Bidabadi Mehdi Ebrahimi farzaneh Bordbar Vahid School of Mechanical Engineering Department of Energy ConversionCombustion Research LaboratoryIran University of Science and Technology(IUST)Tehran ***Iran

In this work, an analytical model is presented to simulate the combustion process of organic dust with considering radiative heat loss effect in counterflow configuration. A thermal model has been generated to estimate the flame propagation speed in various dust concentrations. The structure of premixed flame in a symmetric configuration, containing uniformly distributed volatile fuel particles, with nonunity Lewis number is examined with strain rate issue. The flame structure is divided into six zones: first heating, drying, second heating, volatile evaporation, reaction and post-flame zones. At first, the governing equations of lycopodium combustion dust particles are written for each zone. Finally, boundary conditions and matching conditions are applied for each zone in order to solve the differential equations. The purpose of this article is to analyze radiation heat transfer on lycopodium flame propagation dust particles and characteristics to check the effect of parameters on combustion.

关键词： radiative heat counterflow lycopodium analytical model

Simultaneous Placement of Tie-lines and Distributed Generations to Optimize Distribution System Post-outage Operations and Minimize Energy Losses

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CSEE Journal of Power and Energy Systems 2021年第2期7卷 318-328页

作者： farzaneh Shojaei Mohammad Rastegar Morteza Dabbaghjamanesh Department of Power and Control Engineering School of Electrical and Computer EngineeringShiraz UniversityShirazIran Electrical and Computer Engineering Department The University of Texas at DallasUSA.

This study proposes a new method which aims to optimally install tie-lines and distributed generations *** is done to optimize the post-outage reconfiguration and minimize energy losses and energy not supplied of distribution *** number and location of tie-lines,as well as the number,size,and location of DGs,are pinpointed through teaching the learning-based optimization(TLBO)*** objective function in the current research is to minimize the costs pertaining to the investment,operation,energy losses,and energies not *** addition to the normal operational condition,fault operational condition is also ***,the optimal post-fault reconfigurations for fault occurrences in all lines are ***,the operational constraints such as the voltage and line current limits are taken into account in both normal and post-fault operational ***,the modified IEEE 33-bus and 69-bus distribution test systems are selected and tested to demonstrate the effectiveness of the simultaneous placement of DGs and tie-line technique proposed in this paper.

关键词： Distribution system reliability distributed generation energy loss post-outage reconfiguration tie-lines

Urban-rural differences in the pregnancy-related adverse outcome

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Gynecology and Obstetrics Clinical Medicine 2023年第1期3卷 51-55页

作者： Vahid Mehrnoush Amene Ranjbar farzaneh Banihashemi Fatemeh Darsareh Mitra Shekari Malihe Shirzadfardjahromi Mother and Child Welfare Research Center Hormozgan University of Medical SciencesBandar AbbasIran Urology Department Northern Ontario School of MedicineThunder BayOntarioCanada Fertility and Infertility Research Center Hormozgan University of Medical SciencesBandar AbbasIran

Background:Little is known about potential urban-rural differences in adverse pregnancy *** purpose of this study is to look into the urban-rural differences in the trend of adverse maternal and neonatal ***:We retrospectively assessed the pregnancy outcome of singleton pregnant mothers who gave birth at a tertiary hospital in Bandar Abbas,Iran,between January 1st,2020,and January 1st,*** were divided into two groups based on living residency:1)urban groupand 2)rural *** factors,obstetrical factors,maternal comorbidities,and adverse maternal and neonatal outcomeswere extracted from the electronic data of each *** Chi-square testwas used to compare differences between the groups for categorical *** regression models were used to assess the association of adverse pregnancy,childbirth,and neonatal outcome with living ***:Of 8888 mothers that gave birth during the study period,2989(33.6%)lived in rural *** pregnancy was more common in the rural *** mothers had a higher education than rural *** mothers were at higher risk for preterm birth aOR 1.81(CI:1.24-2.99),post-term pregnancy aOR 1.5(CI:1.07-2.78),anemia aOR 2.02(CI:1.07-2.34),low birth weight(LBW)aOR 1.89(CI:1.56-2.11),need for neonatal resuscitation aOR 2.66(CI:1.78-3.14),and neonatal intensive care unit(NICU)admission aOR 1.98(CI:1.34-2.79).On the other hand,the risk of cesarean section was significantly lower compared to urban mothers aOR 0.58(CI:0.34-0.99).Conclusions:Our study discovered that mothers living in rural areas had a higher risk of developing anemia,preterm birth,post-term pregnancies,LBW,need for neonatal resuscitation,and NICU admission,but a lower risk of cesarean section.

关键词： Pregnancy outcome Urban Rural Living residency

GNSS smartphones positioning: advances, challenges, opportunities, and future perspectives

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Satellite Navigation 2021年第1期2卷 329-351页

作者： farzaneh Zangenehnejad Yang Gao Department of Geomatics Engineering Schulich School of EngineeringUniversity of Calgary2500 University Drive N.WCalgaryAB T2N 1N4Canada

Starting from 2016,the raw Global Navigation Satellite System(GNSS)measurements can be extracted from the Android Nougat(or later)operating *** then,GNSS smartphone positioning has been given much attention.A high number of related publications indicates the importance of the research in this field,as it has been doing in recent *** to the cost-effectiveness of the GNSS smartphones,they can be employed in a wide variety of applications such as cadastral surveys,mapping surveying applications,vehicle and pedestrian navigation and ***,there are still some challenges regarding the noisy smartphone GNSS observations,the environment effect and smartphone holding modes and the algorithm development part which restrict the users to achieve high-precision smartphone *** this review paper,we overview the research works carried out in this field with a focus on the following aspects:first,to provide a review of fundamental work on raw smartphone observations and quality assessment of GNSS observations from major smart devices including Google Pixel 4,Google Pixel 5,Xiaomi Mi 8 and Samsung Ultra S20 in terms of their signal strengths and carrier-phase continuities,second,to describe the current state of smartphone positioning research field until most recently in 2021 and,last,to summarize major challenges and opportunities in this ***,the paper is concluded with some remarks as well as future research perspectives.

关键词： Smartphone positioning GNSS Carrier-to-noise density ratio(C/N0) Precise point positioning(PPP) Real-time kinematic positioning(RTK)

Analysis of axial strain in one-dimensional loading by different models

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Acta Mechanica Sinica 2010年第5期26卷 745-753页

作者： G.Aryanpour M.farzaneh NSERC/Hydro-Québec/UQAC Industrial Chair on Atmospheric Icing of Power Network Equipment(CIGELE) and Canada Research Chair on Engineering of Power Network Atmospheric Icing(INGIVRE) CIGELE Université du Québec à Chicoutimi(UQAC)555 Boul.de l'Université

Different phenomenological equations based on plasticity, primary creep （as a viscoplastic mechanism）, secondary creep （as another viscoplastic mechanism） and different combinations of these equations are presented and used to describe the material inelastic deformation in uniaxial test. Agreement of the models with experimental results and with the theoretical concepts and physical realities is the criterion of choosing the most appropriate formulation for uniaxial test. A model is thus proposed in which plastic deformation, primary creep and secondary creep contribute to the inelastic deformation. However, it is believed that the hardening parameter is composed of plastic and primary creep parts. Accordingly, the axial plastic strain in a uniaxial test may no longer be considered as the hardening parameter. Therefore, a proportionality concept is proposed to calculate the plastic contribution of deformation.

关键词： Modelling Uniaxial test Plastic - Creep Strain hardening - Proportionality

Ant colony optimization as a descriptor selection in QSPR modeling for prediction of λ_(max) of azo dyes

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Chinese Chemical Letters 2012年第10期23卷 1209-1212页

作者： Morteza Atabati farzaneh Khandani School of Chemistry Damghan UniversityDamghanIran

A quantitative structure-property relationship （QSPR） study was suggested for the prediction of λ-max of azo dyes. After optimization of 3D geometry of structures, different descriptors were calculated by the HyperChem and Dragon softwares. A major problem of QSPR is the high dimensionality of the descriptor space; therefore, descriptor selection is the most important step for these studies. In this paper, an ant colony optimization （ACO） algorithm was proposed to select the best descriptors.

关键词： QSPR Ant colony optimization Azo dyes λmax

Pyrrhotite Fe_(1−x) S microcubes as a new anode material in potassium-ion batteries

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Microsystems & Nanoengineering 2020年第1期6卷 425-434页

作者： Yang Xu farzaneh Bahmani Runzhe Wei Department of Chemistry University College London20 Gordon StreetLondon WC1H 0AJUK National&Local United Engineering Laboratory for Power Batteries Faculty of ChemistryNortheast Normal UniversityChangchun 130024China

Potassium-ion batteries are an emerging energy storage technology that could be a promising alternative to lithium-ion batteries due to the abundance and low cost of *** on potassium-ion batteries has received considerable attention in recent *** the progress that has been made,it is important yet challenging to discover electrode materials for potassium-ion ***,we report pyrrhotite Fe_(1−x) S microcubes as a new anode material for this exciting energy storage *** anode delivers a reversible capacity of 418 mAh g−1 with an initial coulombic efficiency of~70%at 50 mAg^(−1) and a great rate capability of 123 mAh g^(−1) at 6Ag^(−1) as well as good *** analysis shows the structural stability of the anode after cycling and reveals surface-dominated K storage at high *** merits contribute to the obtained electrochemical *** work may lead to a new class of anode materials based on sulfide chemistry for potassium storage and shed light on the development of new electrochemically active materials for ion storage in a wider range of energy applications.

关键词： potassium anode cycling

A review on the cracking,baking and leaching processes of rare earth element concentrates

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Journal of Rare Earths 2017年第8期35卷 739-752页

作者： farzaneh Sadri Amir Mohammad Nazari Ahmad Ghahreman Department of Mining Engineering Queen's University 25 Union Street Kingston Ontario K7L 3N6 Canada

Rare earth elements（REE） are a set of seventeen chemical elements in the periodic table, which have been found in a variety classes of minerals in the world. The global demand for REE and their compounds has increased in high-tech applications over the past decades due to their chemical, catalytic, electrical, magnetic, and optical properties. After mining, comminution and ore beneficiation, hydrometallurgical and pyrometallurgical processes are carried out to recover REE compounds. The concentrate cracking is a process wherein the structure of a REE mineral is modified in order to dissolve REE in a weak acid solution. This would be accomplished through various techniques such as alkaline cracking and acid baking. The cracked concentrate is then leached to dissolve REE in a solution and subsequently recover those via neutralization, precipitation or solvent extraction methods. This paper reviewed the cracking and leaching methods applied to REE concentrates to produce an intermediate product for further REE separation.

关键词： rare earth elements alkaline cracking acid baking leaching separation

The effect of antioxidants on increased oocyte Competence in IVM: a review

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Reproductive and Developmental Medicine 2023年第3期7卷 180-188页

作者： Arezoo Solati Sina Taghvimi Zeinab Jamali farzaneh Vahedi Mostafa Moazamfard Sedigheh Bahmyari Ahmad Movahedpour Hassan Ghasemi Department of Reproductive Biology School of Advanced Medical Sciences and TechnologiesShiraz University of Medical SciencesShirazIran Department of Biology Faculty of ScienceShahid Chamran University of AhvazAhvazIran Department of Medical Genetics School of MedicineTehran University of Medical SciencesTehranIran Department of Medical Biotechnology School of Advanced Medical Sciences and TechnologiesShiraz University of Medical SciencesShirazIran Department of Operating Room Faculty of ParamedicineBehbahan University of Medical SciencesBehbahanIran Behbahan Faculty of Medical Sciences BehbahanIran Abadan University of Medical Sciences AbadanIran.

In vitro maturation(IVM)is considered a potential assisted reproductive technology that is a safer and simpler alternative to conventional in vitro *** is primarily used in patients with impaired oocyte maturation and for the treatment of infertile women who are at risk of fertility *** addition,IVM is currently used mainly in polycystic ovarian syndrome patients with a high ovarian response and is stll considered an experimental option in fertility *** highly competent oocytes during IVM is considered a key step in the success of in vitro production(IVP)of *** factors,such as culture medium conditions and other supplements,have a significant impact on oocyte IVM *** of the known disruptors of oocyte developmental competence in IVP is oxidative stress(Os),which is caused by an imbalance between the production and neutralization of reactive oxygen species(ROS).In vitro conditions induce supraphysiological ROS levels due to exposure to an oxidative environment and the isolation of the oocyte from the follicle protective antioxidant *** the importance of Os in oocyte competence,the establishment of standardized antioxidant IVM systems is critical for improving the overall success of *** review focuses on the main antioxidants tested to protect oocytes against OS in IVM.

关键词： In vitro maturation Oocyte maturation Oxidative stress Free radicals Antioxidant Reactive oxygen species