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Reconfiguration of Active Distribution Networks Equipped with Soft Open Points Considering Protection Constraints

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Journal of Modern Power Systems and Clean Energy 2023年第1期11卷 212-222页

作者： Ali Azizi Behrooz Vahidi Amin foroughi Nematollahi Department of Electrical Engineering of the Amirkabir University of Tech‐nology TehranIran

The purpose of active distribution networks(ADNs)is to provide effective control approaches for enhancing the operation of distribution networks(DNs)and greater accommodation of distributed generation(DG)*** the integration of DG sources into DNs,several operational problems have drawn attention such as overvoltage and power flow alteration *** problems can be dealt with by utilizing distribution network reconfiguration(DNR)and soft open points(SOPs).An SOP is a power electronic device capable of accurately controlling active and reactive power *** significant aspect often overlooked is the coordination of protection devices needed to keep the network safe from *** implementing DNR and SOPs in real DNs,protection constraints must be *** paper presents an ADN reconfiguration approach that includes DG sources,SOPs,and protection *** approach selects the ideal configuration,DG output,and SOP placement and control by employing particle swarm optimization(PSO)to minimize power loss while ensuring the correct operation of protection devices under normal and fault *** proposed approach explicitly formulates constraints on network operation,protection coordination,DG size,and SOP ***,the proposed approach is evaluated using the standard IEEE 33-bus and IEEE 69-bus networks to demonstrate the validity.

关键词： Distributed generation network reconfiguration protection system soft open point

Are women more susceptible to ischemic heart disease compared to men? A literature overview

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Journal of Geriatric Cardiology 2021年第4期18卷 289-296页

作者： Masoud Majidi Vahid Eslami Pardis Ghorbani Mahnoosh foroughi Clinical Research and Development Center Shahid Modarres HospitalShahid Beheshti University of Medical SciencesTehranIran Cardiovascular Research Center Shahid Beheshti University of Medical SciencesTehranIran

Ischemic heart disease(IHD) is known as the leading cause of death in both genders. Moreover, significant sex differences were found in cardiac structure, function, pathophysiology, presentation, treatment, and outcome of IHD. The presence of unique risk factors such as exposure to menarche and pregnancy, more anemia, hypertension, and autoimmune disorders in women have recently received attention. Ischemic symptoms are more indefinite and vague in women compared to men as well as a delay in diagnosis, treatment, and worse outcomes compared to men. Women usually receive less evidence-based treatment and intervention, with less concern on preventive health care. Clinical trials primarily recruit male patients and women are underrepresented. Without any correct diagnosis, treatment, and prevention, these problems are accumulated and continue up to older age. Accordingly, with the belief of longer life in women and the increased prevalence of IHD with aging, it will become an important public health problem and concern in the future. This narrative review aimed to provide an overview of some of the differences between the two genders in terms of IHD with paying more attention to practical points.

关键词： IHD presentation A literature overview Are women more susceptible to ischemic heart disease compared to men

Nanoplasmonic magneto-optical isolator [Invited]

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Chinese Optics Letters 2021年第8期19卷 130-137页

作者： Vahid foroughi Nezhad Chenglong You Georgios Veronis School of Electrical Engineering and Computer Science Louisiana State UniversityBaton RougeLouisiana 70803USA Center for Computation and Technology Louisiana State UniversityBaton RougeLouisiana 70803USA Department of Physics and Astronomy Louisiana State UniversityBaton RougeLouisiana 70803USA

We introduce a nanoplasmonic isolator that consists of a cylindrical resonator placed close to a metal-dielectric-metal(MDM) waveguide. The material filling the waveguide and resonator is a magneto-optical(MO) material, and the structure is under an externally applied static magnetic field. We theoretically investigate the properties of the structure and show that the cavity mode without MO activity splits into two modes when the MO activity is present. In addition, we find that the presence of the MDM waveguide leads to a second resonance due to the geometrical asymmetry caused by the existence of the waveguide. We also show that, when MO activity is present, the cavity becomes a traveling wave resonator. Thus, the transmission of the structure depends on the direction of the incident light, and the proposed structure operates as an optical isolator.

关键词： plasmonics metal optics magneto-optic systems

The Effects of Nanoparticle Additives on Thermophysical Properties of Concrete Mixtures

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Open Journal of Civil Engineering 2022年第4期12卷 587-614页

作者： Kamran Rahmati Shadbad Ali foroughi-Asl Siamak Talatahari Sassan Mohasseb Faculty of Civil Engineering University of Tabriz Tabriz Iran ETH SMTEAM GmbH Meilen Switzerland

In recent years, energy-retrofitting is becoming an imperative aim for existing buildings worldwide and increased interest has focused on the development of nanoparticle blended concretes with adequate mechanical properties and durability performance, through the optimization of concrete permeability and the incorporation of the proper nanoparticle type in the concrete matrix. In order to investigate the potential use of nanocomposites as dense barriers against the permeation of liquids into the concrete, three types of nanoparticles including Zinc Oxide (ZnO), Magnesium Oxide (MgO), and composite nanoparticles were used in the present study as partial replacement of cement. Besides, the effect of adding these nanoparticles on both pore structure and mechanical strengths of the concrete at different ages was determined, and scanning electron microscopy (SEM) images were then used to illustrate the uniformity dispersion of nanoparticles in cement paste. It was demonstrated that the addition of a small number of nanoparticles effectively enhances the mechanical properties of concrete and consequently reduces the extent of the water permeation front. Finally, the behavioral models using Genetic Algorithm (GA) programming were developed to describe the time-dependent behavioral characteristics of nanoparticle blended concrete samples in various compressive and tensile stress states at different ages.

关键词： Nanoparticle Blended Concretes Zinc Oxide (ZnO) Magnesium Oxide (MgO) Composite Nanoparticles Genetic Algorithm (GA) Programming Time-Dependent Behavioral Model

无溶剂条件下以N-甲基-2-吡咯烷酮硫酸氢盐为离子液体催化剂高效、环境友好一锅法合成1,5-苯二氮衍生物(英文)

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催化学报 2015年第5期36卷 734-741页

作者： Hossein Naeimi Hossein foroughi Department of Organic Chemistry Faculty of Chemistry University of Kashan

A powerful and environmentally benign method has been developed for the one-pot synthesis of 4-substituted-1,5-benzodiazepines via the three-component reaction of a series of aldehydes with dimedone and o-phenylenediamine using [H-NMP][HSO_4] as a Brnsted acidic ionic liquid catalyst under solvent-free conditions. The key benefits of this new method over existing techniques include high yields, the use of a green catalyst, short reaction times and facile catalyst separation.

关键词：离子液体催化剂无溶剂条件一锅合成邻苯二胺环境友好二氮杂 N-甲基硫酸氢

AWeb 3.0 ontology based on similarity:a step toward facilitating learning in the Big Data age

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Journal of Management Analytics 2015年第3期2卷 216-232页

作者： Abbas foroughi Gongjun Yan Hui Shi Dazhi Chong College of Business University of Southern IndianaEvansvilleUSA Strome College of Business Old Dominion UniversityNorfolkUSA

Web 3.0 technology will revolutionize the learning process,enabling data linking to connect learning resources and create ontologies for different areas of knowledge that enable‘smart searches.’Smart or semantic searches perceive relationships among various pieces of information and present them to the *** has been proposed as a theory to guide learning in this new Web 3.0 *** paper discusses the relevance of connectivism and then develops an ontology for learning *** authors propose a hybrid similarity measure to evaluate the similarity among different learning *** paper presents a case study that was conducted to evaluate the proposed similarity measure on education data sets and demonstrates the effectiveness of the proposed methods.

关键词： Web 3.0 Semantic Web connectivism learning theory learning resources ontology similarity business analytics Big Data

Integrated Biostratigraphy, Depositional Setting and Geochemical Analyses for Petroleum Potential Evaluation of the Lower Cretaceous(Barremian – Albian) Strata of the Koppeh-Dagh Basin, Northeastern Iran

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Acta Geologica Sinica(English Edition) 2019年第6期93卷 1885-1899页

作者： Sharifi MOHAMMAD foroughi FARIBA Ghasemi-Nejad EBRAHIM Shekarifard ALI Yazdi-Moghadam MOHSEN Sarfi MEHDI Department of Geology Faculty of SciencesUniversity of TehranTehranIran School of Chemical Engineering College of EngineeringUniversity of TehranTehranIran Exploration Directorate of the National Iranian Oil Company TehranIran School of Earth Sciences Damghan UniversityDamghanIran

The lower Cretaceous rock units of the Koppeh-Dagh Basin of northeastern Iran were investigated here in terms of biostratigraphy,depositional setting and geochemical analyses to find out if they,alike other parts of the world,are rich in *** this purpose,a stratigraphic framework is established using calcareous nannofossil and palynological elements.A nannoplankton zonation based on which subzones of the zones CC7–CC8 of Sissingh(1977)and their equivalent NC6–NC8 of Roth(1978)was established indicating a Late Barremian–Albian *** assemblages led us to establish the local palynozone of Odontochitina operculata.A dominantly marginal basin to a transitional zone between shelf and basin under a dysoxic–anoxic condition with low to moderate sedimentation rates coincided with a gradual sea level rise was introduced as the environment of deposition for the strata via interpretation of the palynological parameters and quantitative *** obtained data from Rock-Eval pyrolysis in compilation with palynofacies analysis reveals that the studied succession contains mainly gas-prone type III *** Spore Coloration Index(SCI)alongside with the Rock-Eval pyrolysis results(low values of HI and TOC)proves that these rock units locally produced natural gas during the time under consideration.

关键词： Koppeh-Dagh Lower Cretaceous Biostratigraphy Palaeoenvironment Rock-Eval pyrolysis

Experimental investigation into L-Arg and L-Cys eco-friendly surfactants in enhanced oil recovery by considering IFT reduction and wettability alteration

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Petroleum Science 2020年第1期17卷 105-117页

作者： Hamed foroughi Asl Ghasem Zargar Abbas Khaksar Manshad Mohammad Ali Takassi Jagar A.Ali Alireza Keshavarz Department of Petroleum Engineering Abadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Petroleum Engineering Ahwaz Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AhwazIran Department of Petroleum Engineering Faculty of EngineeringSoran UniversitySoranKurdistan RegionIraq Department of Petroleum Engineering College of EngineeringKnowledge UniversityErbilKurdistan RegionIraq School of Engineering Edith Cowan UniversityJoondalupWA 6027Australia

Surfactant flooding is an important technique used to improve oil recovery from mature oil reservoirs due to minimizing the interfacial tension(IFT)between oil and water and/or altering the rock wettability toward water-wet using various surfactant agents including cationic,anionic,non-ionic,and amphoteric *** this study,two amino-acid based surfactants,named lauroyl arginine(L-Arg)and lauroyl cysteine(L-Cys),were synthesized and used to reduce the IFT of oil–water systems and alter the wettability of carbonate rocks,thus improving oil recovery from oil-wet carbonate *** synthesized surfactants were characterized using Fourier transform infrared spectroscopy and nuclear magnetic resonance analyses,and the critical micelle concentration(CMC)of surfactant solutions was determined using conductivity,pH,and turbidity *** results showed that the CMCs of L-Arg and L-Cys solutions were 2000 and 4500 ppm,*** was found that using L-Arg and L-Cys solutions at their CMCs,the IFT and contact angle were reduced from 34.5 to 18.0 and15.4 mN/m,and from 144°to 78°and 75°,***,the L-Arg and L-Cys solutions enabled approximately 11.9%and 8.9%additional recovery of OOIP(original oil in place).It was identified that both amino-acid surfactants can be used to improve oil recovery due to their desirable effects on the EOR mechanisms at their CMC ranges.

关键词： Chemical EOR Amino-acid surfactant IFT Wettability Coreflooding

Domestic Robots Localization and Navigation Using by CNN

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Domestic Robots Localization and Navigation Using by CNN