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Digital twin-enabled smart facility management: A bibliometric review

Frontiers of Engineering Management 2024年第1期11卷 32-49页

作者： Obaidullah hakimi Hexu LIU Osama ABUDAYYEH Department of Civil and Construction Engineering Western Michigan UniversityKalamazooMI 49008-5316USA

In recent years,the architecture,engineering,construction,and facility management(FM)industries have been applying various emerging digital technologies to facilitate the design,construction,and management of infrastructure *** twin(DT)has emerged as a solution for enabling real-time data acquisition,transfer,analysis,and utilization for improved decision-making toward smart *** research on DT for FM has been undertaken in the past *** paper presents a bibliometric analysis of the literature on DT for FM.A total of 248 research articles are obtained from the Scopus and Web of Science *** is then utilized to conduct bibliometric analysis and visualize keyword co-occurrence,citation,and co-authorship networks;furthermore,the research topics,authors,sources,and countries contributing to the use of DT for FM are *** findings show that the current research of DT in FM focuses on building information modeling-based FM,artificial intelligence(AI)-based predictive maintenance,real-time cyber–physical system data integration,and facility lifecycle asset *** areas,such as AI-based real-time asset prognostics and health management,virtual-based intelligent infrastructure monitoring,deep learning-aided continuous improvement of the FM systems,semantically rich data interoperability throughout the facility lifecycle,and autonomous control feedback,need to be further *** review contributes to the body of knowledge on digital transformation and smart FM by identifying the landscape,state-of-the-art research trends,and future needs with regard to DT in FM.

关键词： digital twin building information modeling facility management semantic interoperability artificial intelligence intelligent monitoring autonomous control feedback

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The role of selective serotonin reuptake inhibitors and tricyclic antidepressants in addressing reduction of Meniere's disease burden:A scoping review

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第3期10卷 206-212页

作者： Alexander A.Missner Mana Sheykhsoltan Amir hakimi Michael Hoa Georgetown University School of Medicine WashingtonDistrict of ColumbiaUSA Department of Otolaryngology-Head and Neck Surgery Georgetown University Medical CenterWashingtonDistrict of ColumbiaUSA Auditory Development and Restoration Program National Institute on Deafness and Other Communication DisordersNational Institutes of HealthBethesdaMarylandUSA

Objective:To assess the effect of selective serotonin reuptake inhibitors(SSRIs)and tricyclic antidepressants(TCAs)in reducing vertigo,tinnitus,and hearing loss among patients with Meniere's disease(MD).Data Sources:The following databases were utilized in this scoping review:Ovid Medline,PubMed-NCBI,CINAHL,Cochrane Library,Web of Science,and ***:Studies were identified through the following search phrases:"serotonin specific reuptake inhibitors"OR"tricyclic antidepressants"AND"Meniere's disease."References from included manuscripts were examined for possible inclusion of additional ***:The literature search yielded 23 results,which were screened by three independent *** studies and three duplicates were *** examination of references from the included studies yielded two additional publications.A total of four published studies assessing SSRIs and TCAs among 147 patients with MD were ultimately *** studies described significant reductions in vertigo attack frequency among patients treated with either SSRIs or TCAs compared to their pretreatment *** studies assessed the drugs'effects on hearing,of which none found a significant difference among patients treated with SSRIs or *** study found a significant decrease in patient-reported tinnitus following treatment with TCAs or SSRIs compared to their pretreatment ***:Data exploring SSRIs and TCAs among patients with MD suggests that these medications may reduce the frequency of tinnitus and vertigo,although there was significant heterogeneity in outcome *** remains a need for larger-scale prospective studies that emphasize objective data to evaluate their effective-ness in reducing common MD symptoms.

关键词： aural fullness clinical trials Meniere's disease scoping review sensorineural hearing loss serotonin specific reuptake inhibitors tricyclic antidepressants vertigo

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肾透明细胞癌的放射基因学研究:CT影像特征和基因突变的相关性

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国际医学放射学杂志 2014年第2期 174-174页

作者： C.A.Karlo P.L.D.Paolo J.Chaim a.a.hakimi I.Ostrovnaya P.Russo 肖雅雯 Department of Radiology Memorial Sloan -Kettering Cancer Center 1275 York Ave Radiology Academic OfficesRoom C278 New York NY

目的探讨肾透明细胞癌(RCC)的CT特征和VHL、PBRM1、SETD2、KDM5C和BAP1基因突变的相关性。材料与方法本项回顾性研究经机构审查委员会批准,符合HIPAA

关键词：肾透明细胞癌 RCC BAP 基因突变点突变基因学影像特征 CT 相关性

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Recent tectonic activity in Central Alborz Mountain,Iran:morphometric analysis and knickpoint identification

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Journal of Mountain Science 2020年第12期17卷 3137-3161页

作者： Parisa SHOKRI Maryam DEHBOZORGI Saeid hakimi ASIABAR Department of Earth Science Kharazmi UniversityTehran15719-14911Iran Department of Geology Lahijan BranchAzad UniversityGilan1616Iran

Alborz,as part of the Alpine-Himalayan orogeny belt,has been the result of the convergence of the Central Iranian and Eurasian plate since the late *** study area located in Central Alborz encompasses different Quaternary ***,the present study aimed to evaluate the effect of faults on river landforms through morphotectonic indices and the causes of knickpoints and knickzones in the Bedrock Rivers in part of Central *** this end,six morphometric indices such as longitudinal gradient(SL),hierarchical anomaly(Δα),the bifurcation index(R),hypsometric integral and hypsometric curve(Hi-Hc),relative relief(Bh),and basin shape(Bs) were calculated and analyzed in38 sub-basins of the ***,the area was divided into extremely high,high,medium,and low tectonic activity areas using the relative tectonic activity(IAT).Normalized steepness and concavity indices along with the longitudinal profiles of the streams were obtained using Matlab and Arc GIS *** on the findings,the existence of slope-break knickpoints at the mountain piedmont at the outlet of large rivers through active faults demonstrated that most of these landforms were created by movements along the main faults such as Khazar,Nusha,Soheil,Deylaman,Kashachal,representing high tectonic activity in the central and southern parts of the study ***,the values of these indices were extremely low and indicated low tectonic activity in the northern parts located in the embayment part of the Caspian ***,the findings revealed that these classes correspond well to the areas with landforms such as V-shaped and narrow valleys,gorges,deflected and offset streams,deformed Neogene,and Quaternary units that indicate the post-Neogene activity.

关键词： Morphotectonic Bedrock rivers Knickpoint Quaternary Fault Uplift Central Alborz

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The effect of Fe doping on structural and magnetic properties of nanocrystallite Co_2Cr_(1-x)Fe_xAl Heusler alloys prepared by mechanical alloying

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Chinese Physics B 2012年第11期21卷 459-466页

作者： M.hakimi P.Kameli H.Salamati Department of Physics Isfahan University of Technology

Mechanical alloying has been used to produce nanocrystallite Co2Crl-xFexAl （x = 0, 0.4, 0.6, 1） Heusler alloys. The formation of the L21 phase of Co2Cr1-xFexAl by the mechanical alloying method was investigated. The effect of Fe doping on the structural and magnetic properties of the samples was also studied. The results were compared with the Slater Pauling prediction. A comparison between these samples and those prepared by the arc-melting method in the literature was made. An increase of the coercivity Hc with the increasing Fe doping level was observed. This phenomenon was explained by the increases of lattice strain and magnetic anisotropy with the increasing Fe content.

关键词： magnetic property X-ray diffraction nanocrystallite mechanical property

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Estimating oak forest parameters in the western mountains of Iran using satellite-based vegetation indices

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Journal of Forestry Research 2020年第2期31卷 541-552页

作者： Adel Nouri Bahman Kiani Mohammad Hossein hakimi Mohammad Hossein Mokhtari Department of Forest Sciences Faculty of Natural ResourcesYazd UniversityYazdIslamic Republic of Iran Department of Desert Management Faculty of Natural ResourcesYazd UniversityYazdIslamic Republic of Iran

Remote sensing is an important tool for studying and modeling forest *** indices obtained from Landsat-8 remotely sensed data were used to estimate the forest parameters in the western mountains of *** sample points were selected on the map of Bayangan County,Kermanshah province,*** each point,a cluster of five rectangular plots of 8100 m2 and 200 m apart was *** clusters were primarily sampled to determine the variance of the forest *** coefficient of variation was used as a criterion for sample *** density,canopy cover and basal area per hectare were calculated for each *** indices were extracted fromthe Landsat-8 images for each *** linear and nonlinear regressions were conducted to develop the *** models were validated using an independent data *** of model parameters was statistically *** results showed that Normalized difference vegetation index(NDVI)and Transformed normalized difference vegetation index(TNDVI)followed by Simple ratio vegetation index(SRVI)were the best predictors,explaining up to 91%of the variations with high *** NDVI,Soil adjusted vegetation index 2(SAVI2)and SRVI,the cubic model was more appropriate than the linear model for predicting the forest *** this model,the R-square value increased while NRMSE decreased *** Infrared percentage vegetation index(IPVI),the quadratic model was better,but,for other vegetation indices,nonlinear models were not superior to linear ***,it can be concluded that Landsat-8 imagery is suitable for predicting forest parameters in the oak forests of western *** course,large plots must be selected,and pre-classification is necessary to gain accurate and precise estimations.

关键词： Basal area Canopy cover Density Landsat-8 Modeling

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Generation’Y Behavior on Lazada E-commerce

Generation’Y Behavior on Lazada E-commerce

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作者： Penpetch hakimi 浙江工商大学

学位级别：硕士

The research aims to（1）study the behavior of Gen Y Thai consumers and digital marketing of LAZADA in Thailand,and（2）find the most important factors of digital marketing affecting Thai consumers on e-commerce via *** sampling group is ecommerce users on LAZADA,GEN Y about 400 *** research instrument is a *** used for the research are frequency,percentage,mean,standard deviation,and hypothesis testing in *** results are as follows.1)The behavior of Gen Y Thai consumers and digital marketing of LAZADA in Thailand;the reason they purchase goods or use services via LAZADA due to relatively lower than the general market-based on 143 people or 35.80%,followed by oneself as an influence of consuming goods and services on LAZADA made of 278 people or 69.50%.About 182 people or 45.50% has a frequency of consumption via LAZADA of 1-2 times per *** majority of the respondents purchase goods or services on LAZADA at the price between 501-1,200 THB which is made of 172 people or 43.00%.The most used device to enter the LAZADA website is through Google with made of 349 people or 867.30%.About154 people or 38.50% spends time browsing the website between 16.01-20.00 and 20.01-24.00 *** the most frequent category of purchasing goods or services is health and beauty which made of 193 people or 33.30%.*** most important factors of digital marketing affecting Thai consumers on ecommerce via LAZADA include business-to-business（B2B）,business-to-consumer（B2C）,and consumer-to-consumer（C2C）,respectively.

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Experimental Study on Transverse Bending Performance of Steel-UHPC Composite Deck

Experimental Study on Transverse Bending Performance of Stee...

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作者： Abdul Wasim hakimi 湖南大学

学位级别：硕士

正交异性钢桥面具有强度高、自重轻、适用性强等特点,广泛应用于大跨度桥梁的桥面体系。然而,长期的工程实践表明,传统的正交异性钢桥面存在结构复杂、焊缝多、沥青混凝土桥面铺装刚度不足等问题,在往复车轮荷载作用下容易出现疲劳开裂... 详细信息

正交异性钢桥面具有强度高、自重轻、适用性强等特点,广泛应用于大跨度桥梁的桥面体系。然而,长期的工程实践表明,传统的正交异性钢桥面存在结构复杂、焊缝多、沥青混凝土桥面铺装刚度不足等问题,在往复车轮荷载作用下容易出现疲劳开裂和路面损伤。针对这些问题,人们提出了一系列可行的解决方法,包括但不限于增加钢板厚度、采用水泥基铺装层代替沥青铺装层、提高焊接质量等。近年来,针对上述问题,湖南大学邵旭东教授团队将UHPC这一高性能材料的优势引入到桥面板结构,提出了一种新型钢-UHPC轻型桥面结构体系(LWCD),该体系由一层35-60mm的UHPC覆盖在传统桥面,通过剪力钉与桥面连接。但这种结构仍然依托于正交异性钢桥面,其结构复杂、焊缝多等问题仍无法得到根本解决。本文研究了一种新型的钢板-UHPC轻型组合桥面板结构的横向受弯性能,该结构采用开孔钢板(PBL)作为UHPC和钢板之间的连接件(PBL剪力连接键),相比于钢-UHPC轻型桥面板(LWCD),该类型结构取消了正交异性桥面板的纵向肋,大大减少了焊缝作业,简化了施工程序,且相比LWCD结构主要依托正交异性桥面来提供刚度,该类型桥面板在一定情况下可以单独作为独立受力结构。作为一种新的结构体系,关于该结构的研究和应用,目前尚处于起步阶段,为探明该类型桥面板的横向受弯性能,作者基于在建的实际桥梁工程制作了4片全尺寸试件,对组合桥面板的抗弯性能进行了试验研究,得到了荷载-挠度曲线、应变分布、结构刚度和承载力、开裂荷载、裂缝宽度、裂缝发展模式、破坏模式、滑移行为等规律,此外,利用数字图像识别观测系统(DIC)对其中两个试件进行应变分布分析。随后,利用Abaqus CAE软件建立了组合板的有限元模型,利用非线性分析,对组合板的受力状况进行了模拟,通过与试验测试结果比较,验证了有限元分析的正确性,在此基础上展开参数研究。根据试验结果,作者还建立了考虑UHPC抗拉贡献的组合板抗弯承载力的理论计算公式,计算结果表明,所提出来的公式与试验结果吻合良好。本文从背景工程出发,进行了上述研究分析,研究方法与所得结论可为类似结构的研究发展贡献力量。

关键词：钢板-UHPC组合桥面板 PBL剪力连接键试验研究受弯性能有限元分析

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Mechanistic, Energetic and Structural Aspects of the Adsorption of Carmustine on the Functionalized Carbon Nanotubes

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Chinese Journal of Structural Chemistry 2017年第10期36卷 1639-1646页

作者： KHORRAM Rabeeh MORSALI Ali RAISSI Heidar hakimi Mohammad BEYRAMABADI S. Ali Chemistry Department Payame Noor University 19395-4697 Tehran I. R. of IRAN Department of Chemistry Mashhad Branch Islamic Azad University Mashhad Iran & Research Centerfor Animal Development Applied Biology Mashhad Branch Islamic Azad University Mashhad 917568 Iran Chemistry Department University of Birjand Birjand Iran

Using density functional theory, noncovalent interactions and two mechanisms of covalent functionalization of drug carmustine with functionalized carbon nanotube（CNT） have been investigated. Quantum molecular descriptors of noncovalent configurations were studied. It was specified that binding of drug carmustine with functionalized CNT is thermodynamically suitable. NTCOOH and NTCOCl can bond to the NH group of carmustine through OH（COOH mechanism） and Cl（COCl mechanism） groups, respectively. The activation energies, activation enthalpies and activation Gibbs free energies of two pathways were calculated and compared with each other. The activation parameters related to COOH mechanism are higher than those related to COCl mechanism, and therefore COCl mechanism is suitable for covalent functionalization. COOH functionalized CNT（NTCOOH） has more binding energy than COCl functionalized CNT（NTCOCl） and can act as a favorable system for carmustine drug delivery within biological and chemical systems（noncovalent）. These results could be generalized to other similar drugs.

关键词： carmustine, covalent and noncovalent adsorption, functionalized carbon nanotubes, quantum molecular descriptors, reaction mechanisms

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Diversification, bank performance and risk:have Tunisian banks adopted the new business model?

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Financial Innovation 2017年第1期3卷 315-339页

作者： Helmi Hamdi Abdelaziz hakimi Khemais Zaghdoudi Aix-Marseille University CERGAM(4225) MarseilleFrance University of Jendouba Faculty of LawEconomics and Management of JendoubaJendoubaTunisia

Background:The objective of this paper is ***,we test the most important factors that determine the level of non-interest income for Tunisian ***,we study the impact of non-interest income on banks’profitability measured by both return on assets(ROA)and return on equity(ROE).Finally,we investigate the relationship between non-interest income and the level of risk ***:To achieve this goal,we used annual data of 20 Tunisian banks during the period *** the empirical section we performed a Dynamic Panel Data ***:Empirical results indicate that the main determinants of non-interest income are:relative performance(RROA and RROE),bank size,loan specialization and new epayments channels,automatic teller machine(ATM)and credit *** also find that diversification increases bank performance for both ROA and ROE ***,non-interest income appears to be negatively and significantly correlated with the effect on the level of ***:Tunisian banks are invited to more diversify their activities and do not focus only on the traditional *** noninterest income seems to be associated with a higher level of profitability and a lower risk.

关键词： income performance return

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