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Tectonic paleostress field and its impact on the geodynamic evolution of Central Iran, case study: the Shotori Mountain

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Journal of Mountain Science 2023年第10期20卷 3018-3034页

作者： Razieh ABBASPOUR Seyed Morteza MOUSAVI Ahmad RASHIDI Mohammad Mahdi KHATIB shahram SHAFIEIBAFTI Department of Geology University of BirjandBirjand ***Iran Department of Earthquake Research Shahid Bahonar University of KermanKerman ***Iran International Institute of Earthquake Engineering and Seismology Tehran ***Iran Department of Geology Shahid Bahonar University of KermanKerman ***Iran

The Shotori mountain range is located along the northern terminus of the Nayband fault on the eastern and western domains of the Tabas and Lut blocks,*** range with NNW-SSE trending and approximately 120 km long includes a series of thrust faults approaching the right-lateral strike-slip Nayband *** the Shotori range has experienced various geological events since the Triassic,our investigations suggest that the basement of the Central Iranian subcontinent of the Shotori range contains the early Triassic deep sedimentary with normal faults which confirms Triassic tensional tectonic stress regime in the *** the middle Triassic,the mountain range has experienced thrust and strike-slip ***,in this study,we reconstruct the stress regimes for different geological periods using fault-slip *** inversion of faultslip data reveals drastic temporal changes in the maximum stress regime(σ1)over the Triassic,Jurassic,Cretaceous,Paleogene,Neogen,and *** reconstruction of the stress field based on the age and direction of fault movement reveals that the direction of the maximum horizontal stress axis(σ1)under a tensional stress regime was approximately N129°in the Early *** stress regime is the cause of thinning and subsidence of the Shotori sedimentary *** the middle Triassic,theσ1 direction was about N81°and the upper Triassic,theσ1 direction was almost N115°.The middle Triassic and upper Triassic stress states exhibited two distinct strike-slip and compressive stress *** stress regime led to the uplift of the Shotori sedimentary *** the Jurassic,the direction of the maximum horizontal stress axis(σ1)was~NW-SE under a compressive stress *** the Triassic,theσ1 direction was~*** stress regime led to the formation of the high topography of the Shotori Mountain *** the Late Cretaceous,the direction of the maximum horizontal stress axis(σ1)under the extensional stress

关键词： Paleostress Fault-slip data Geodynamics Shotori mountain range Tabas Central Iran

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Domestic PV System with Feedback Linearization-based Control Strategy for Module-level MPPT under Partial Shading Condition

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Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1530-1539页

作者： Hamidreza Toodeji shahram Aghaei Department of Electrical Engineering Yazd University

A partial shading condition can adversely affect the energy conversion efficiency of domestic photovoltaic(PV) systems. Connecting each PV module to a microinverter and performing module-level maximum power point tracking(MPPT)are proposed as promising solutions. In this paper, a feedback linearization-based control strategy is designed for the nonlinear system by a novel straightforward approach. The obtained nonlinear control law can independently govern each microinverter, providing module-level MPPT for PV modules without DC optimizer. Moreover, PV modules can be easily connected or disconnected due to the lug-and-play ability of the proposed controller. As a result, the proposed PV system can be easily maintained and extended even by non-expert users. Moreover,any module failure in the proposed PV system can be tolerated without impacts on the normal operation of other PV *** advantages of the proposed control strategy are verified by the simulation of a test PV system in MATLAB/Simulink under various partial shading conditions as well as adding or removing PV modules.

关键词： Domestic photovoltaic(PV)system microinverter power optimizer module-level maximum power point tracking(MPPT) plug-and-play feedback linearization-based control strategy

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Internal Combustion Engine as a New Source for Enhancing Distribution System Resilience

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Journal of Modern Power Systems and Clean Energy 2021年第5期9卷 1130-1136页

作者： Ahad Abessi shahram Jadid Department of Electrical Engineering Iran University of Science and TechnologyTehranIran

Enhancing distribution system resilience is a new challenge for *** distribution loads,especially the residential customers and high-priority loads after disasters,is vital for this *** this paper,the internal combustion engine(ICE)vehicles are firstly introduced as valuable backup energy sources in the aftermath of disasters and the use of this technology is ***,the improvement of distribution system resilience is investigated through supplying smart residential customers and injecting extra power to the main *** this method,it is assumed that the infrastructure of distribution system is partially damaged(common cases)and it can be restored in less than one *** extra power of residential customer can be delivered to other loads.A novel formulation for increasing the injected power of the smart home to the main grid using ICE vehicles is ***,the maximum backup duration in case of extensive damages in the distribution system is calculated for some commercial ICE *** this case,the smart home cannot deliver extra energy to the main grid because of its *** results demonstrate the effectiveness of the proposed method for increasing backup power during power *** is also shown that ICE vehicles can supply residential customers for a reasonable amount of time during a power outage.

关键词： Internal combustion engine(ICE) smart home building energy management system(BEMS) distribution system resilience

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Evaluating the effect of montelukast tablets on respiratory complications in patients following blunt chest wall trauma:A double-blind,randomized clinical trial

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Chinese Journal of Traumatology 2023年第2期26卷 116-120页

作者： Soleyman Heydari Hadi Khoshmohabat Ali Taheri Akerdi Fathollah Ahmadpour shahram Paydar Department of Surgery Baqiyatallah University of Medical SciencesTehranIran Trauma Research Center Baqiyatallah University of Medical SciencesTehranIran Trauma Research Center Shahid Rajaee(Emtiaz)Trauma HospitalShiraz University of Medical SciencesShirazIran

Purpose:Patients with multiple traumas are at high risk of developing respiratory complications,including pneumonia and acute respiratory distress *** pulmonary complications are associated with systemic inflammation and pulmonary neutrophilic ***-receptor antagonists are anti-inflammatory and anti-oxidant drugs subsiding airway *** present study investigates the effectiveness of montelukast in reducing pulmonary complications among trauma ***:This randomized,double-blind,placebo-control trial was conducted in patients with multiple blunt traumas and evidence of lung contusion detected via CT *** excluded patients if they met at least one of the following conditions: 0.05).At the end of the study,the mean (SD) of pulmonary contusion volume (mm3) (right side = 116748.74 (361705.12),left side = 64522.03 (117266.17)) of the treatment group were comparable to that of the placebo group (right side = 40051.26 (64081.56),left side = 25929.12 (47417.13),p = 0.228 and 0.082,respectively).Moreo

关键词： Acute respiratory distress syndrome Montelukast Leukotrienes Contusions Injuries

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Developing energy forecasting model using hybrid artificial intelligence method

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Journal of Central South University 2015年第8期22卷 3026-3032页

作者： shahram Mollaiy-Berneti Young Researchers and Elites Club Bandar Abbas Branch Islamic Azad University

An important problem in demand planning for energy consumption is developing an accurate energy forecasting model. In fact, it is not possible to allocate the energy resources in an optimal manner without having accurate demand value. A new energy forecasting model was proposed based on the back-propagation(BP) type neural network and imperialist competitive algorithm. The proposed method offers the advantage of local search ability of BP technique and global search ability of imperialist competitive algorithm. Two types of empirical data regarding the energy demand(gross domestic product(GDP), population, import, export and energy demand) in Turkey from 1979 to 2005 and electricity demand(population, GDP, total revenue from exporting industrial products and electricity consumption) in Thailand from 1986 to 2010 were investigated to demonstrate the applicability and merits of the present method. The performance of the proposed model is found to be better than that of conventional back-propagation neural network with low mean absolute error.

关键词：预测模型人工智能方法误差反向传播神经网络国内生产总值能源资源能量开发混合

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Anthropometric Characteristics of Elite Male Taekwondo Players Based on Weight Categories

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Journal of Science in Sport and Exercise 2022年第1期4卷 91-97页

作者： Mohsen Mirali shahram Faradjzadeh Mevaloo Craig Bridge Fariborz Hovanloo Department of Exercise Physiology Physical Education and Sport Science CollegeShahid Beheshti UniversityVelenjakTehranIran Head of Health and Sport Studies Department Strategic Studies and Research CenterSport and Youth MinistryTehranIran Sports Nutrition and Performance Research Group Edge Hill UniversitySt Helens Department of Exercise Physiology Physical Education and Sport Science CollegeShahid Beheshti UniversityTehranIran

Purpose The aim of this study was to investigate the anthropometric characteristics of elite taekwondo players based on weight categories,and to determine if the length of the lower extremities might influence player’s success-level.A total of 59 elite male taekwondo players(22.02±3.07 years)participated in this *** All anthropometric assessments were performed according to the standards and methodology of the International Society for Advancement of *** 18 anthropometrical variables were measured for each athlete and compared between 7 different weight *** players were also divided into two groups(national and international)and the ratios of sitting-height to stature were *** There were significant differences(P0.05)between weight *** height/stature ratio was significantly dif-ferent(P<0.05)between the two groups,where the international group had longer lower extremities than the national *** The findings of this study provide a valuable framework to support talent identification programmes and the development of specialised preparatory strategies for different weight divisions with the sport.

关键词： Anthropometry Combat sports Weight division Somatotype Lower limbs Body fat

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HEAT-RESISTANT,PYRIDINE-BASED POLYAMIDES CONTAINING ETHER AND ESTER UNITS WITH IMPROVED SOLUBILITY

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Chinese Journal of Polymer Science 2010年第1期28卷 29-37页

作者： Hassan Ebadi shahram Mehdipour-Ataei Islamic Azad University of Shahreza P.O.Box 81145-311 ShahrezaIsfahanIran Iran Polymer and Petrochemical Institute P.O.Box 14965/115 TehranIran

A diamine containing ether and ester units, as basic monomer for the preparation of polyamides, was prepared via three consecutive reactions. Nucleophilic substitution reaction of 1,4-dihydroxy benzene with 4-nitrobenzoyl chloride produced 4-hydroxyphenyl 4-nitrobenzoate （HPNB）. Reduction of nitro groups to amino groups using Fe and HC1 resulted in preparation of 4-hydroxyphenyl 4-aminobenzoate （HPAB）. The diamine was synthesized through nucleophilic substitution reaction of HPAB with 2,6-dichloropyridine. The precursors and diamine were fully characterized by common methods, and the diamine was polycondensed with different diacid chlorides in the presence of an acid scavenger to prepare new polyamides. The polyamides were characterized, and their physical properties including thermal stability and behavior, inherent viscosity and solubility were studied.

关键词： Polyamide Polycondensation Diamine Ester Ether.

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HEAT-RESISTANT PYRIDINE-BASED POLY(ETHER-ESTER)S: SYNTHESIS, CHARACTERIZATION AND PROPERTIES

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Chinese Journal of Polymer Science 2013年第1期31卷 171-178页

作者： shahram Mehdipour-Ataei Ali Mahmoodi Department of Chemistry Islamic Azad University

A pyridine-based diacid was synthesized via nucleophilic substitution reaction of 4-hydroxy benzoic acid with 2,6- dichloropyridine in the presence of potassium carbonate. The diacid was characterized using FT-IR and 1H-NMR spectroscopic methods and also with elemental analysis. Polycondensation reaction of the diacid with different diols including 1,4-dihydroxy benzene, 1,5-dihydroxy naphthalene, bis-phenol A and bis-phenol-P resulted in preparation of pyridine-based poly（ether-ester）s. The polymers were characterized and their physical and thermal properties including inherent viscosity, molecular weight, solubility, thermal stability, thermal behavior and crystallinity were studied. They revealed high heat-resistance and improved solubility in polar solvents. Structure-property relations for the prepared polyester were also studied.

关键词： Polyester Polymer synthesis and characterization Thermal properties Structure-property relations.

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A Survey of Techniques for Brain Anomaly Detection and Segmentation Using Machine Learning

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International Journal of Communications, Network and System Sciences 2023年第7期16卷 151-167页

作者： Kamala Narayanan shahram Latifi Department of Electrical and Computer Engineering University of Nevada Las Vegas Las Vegas Nevada USA

In this research report, various Machine Learning (ML) models are discussed for the purpose of detecting brain anomalies like tumors. In the first step, we review previous work that uses Deep Learning (DL) to classify and detect brain tumors. Next, we present a detailed analysis of the ML methods in tabular form to address the brain tumor morphology, accessible datasets, segmentation, extraction, and classification using DL, and ML models. Finally, we summarize all relevant material for tumor detection, including the merits, limitations and future directions. In this study, it is found that employing DL-based and hybrid-based metaheuristic approaches proves to be more effective in accurately segmenting brain tumors, compared to the conventional methods. However, the brain tumor segmentation using ML models suffers from drawbacks due to limited labelled data, variability in tumor appearance, computational memory requirements, transparency in models, and difficulty in integration into clinical workflows. By pursuing techniques such as Data Augmentation, Pre-training, Active-learning, Multimodal fusion, Hardware acceleration, and Clinical integration, researchers and developers can overcome the bottlenecks and enhance the accuracy, efficiency, and clinical utility of ML-based brain tumor segmentation models.

关键词： Department of Electrical and Computer Engineering University of Nevada Las Vegas Las Vegas Nevada USA

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Utilising a Lagrangian approach to compute maximum fault current in hybrid AC-DC distribution grids with MMC interface

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High Voltage 2019年第1期4卷 18-27页

作者： shahram Negari David Xu Department of Electrical and Computer Engineering Ryerson University350 Victoria StreetTorontoONCanada M5B 2K3

Hybrid AC-DC networks are transforming high-voltage transmission and medium-voltage distribution grids by embracing the advantages of both AC and DC systems,which facilitates the inclusion of renewable energy sources and distributed *** modular multilevel converters(MMCs)are vastly employed in such hybrid networks,determining their maximal fault current in worst-case scenario is a critical design factor for planning and implementation of a reliable protection *** study develops a novel mathematical framework that applies a Lagrangian energy method to calculate the maximal fault *** method allows to account for converter's internal energy and compute its impact on the amplitude of the fault *** is shown when the converter is interfacing weak AC sources with high internal impedance such as wind farms or solar farms,dumping the internal energy of the converter into the fault is the salient contributing factor of the fault ***,to distinguish and classify the output overcurrent as either ignorable transients or destructive faults,a perceptron with sigmoid threshold is *** model is verified using a simulated medium-voltage hybrid AC-DC distribution network.

关键词： fault magnitude distribution

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