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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

Preparation, characterization, and antibacterial activity of γ-irradiated silver nanoparticles in aqueous gelatin

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International Journal of Minerals,Metallurgy and Materials 2013年第4期20卷 403-409页

作者： Majid Darroudi Mansor B. Ahmad mohammad hakimi Reza Zamiri Ali Khorsand Zak Hasan Ali Hosseini Mohsen Zargar Department of Modern Sciences and Technologies School of Medicine Mashhad University of Medical Sciences Department of Chemistry Faculty of Science Universiti Putra Malaysia Chemistry Department Payame Noor University Department of Materials Engineering and Ceramic CICECO University of Aveiro Electroceramics and Materials Lab. Physics Department Faculty of Science Ferdowsi University of Mashhad Faculty of Science Qom Branch Islamic Azad University

Colloidal silver nanoparticles （Ag-NPs） were obtained through γ-irradiation of aqueous solutions containing AgNO3 and gelatin as a silver source and stabilizer, respectively. The absorbed dose of γ-irradiation influences the particle diameter of the Ag-NPs, as evidenced from surface plasmon resonance （SPR） and transmission electron microscopy （TEM） images. When the γ-irradiation dose was increased （from 2 to 50 kGy）, the mean particle size was decreased continuously as a result of γ-induced Ag-NPs fragmentation. The antibacterial properties of the Ag-NPs were tested against Methicillinresistant Staphylococcus aureus （MRSA）（Gram-positive） and Pseudomonas aeruginosa （P.a）（Gram-negative） bacteria. This approach reveals that the γ-irradiation-mediated method is a promising simple route for synthesizing highly stable Ag-NPs in aqueous solutions with good antibacterial properties for different applications.

关键词： silver nanoparticles silver nitrate gelatin gamma rays irradiation bacteria

Application of Nickel（Ⅱ） Thiosemicarbazone Supported on Nano Porous Silica as a Catalyst for Selective Oxidation of Alcohols

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材料科学与工程（中英文B版） 2011年第6期1卷 759-765页

作者： mohammad hakimi Reza Takjoo Abbas Gholami Taymaz Tabari Department of Chemistry Payame Noor University Tehran 19395-4697 Iran Department of Chemistry School of Sciences Ferdowsi University of Mashhad Mashhad 91775-1436 Iran Department of Chemistry Faculty of Sciences Islamic Azad University Gorgan Branch Iran

Digital twin-enabled smart facility management: A bibliometric review

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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

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

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

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

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

Generation’Y Behavior on Lazada E-commerce

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Generation’Y Behavior on Lazada E-commerce

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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阿富汗潘杰希尔省体育旅游发展的可行性研究

阿富汗潘杰希尔省体育旅游发展的可行性研究

作者： mohammad Ayaz hakimi（科米）首都体育学院

学位级别：硕士

本文着重对阿富汗体育旅游管理的分析和对潘杰希尔省体育旅游的具体研究,结果表明体育旅游产业的发展对阿富汗的经济增长和发展非常重要。阿富汗是该地区接纳体育旅游人数最多的国家,但出于明确的原因,这一巨大流量从未被确定,规划,稳... 详细信息

本文着重对阿富汗体育旅游管理的分析和对潘杰希尔省体育旅游的具体研究,结果表明体育旅游产业的发展对阿富汗的经济增长和发展非常重要。阿富汗是该地区接纳体育旅游人数最多的国家,但出于明确的原因,这一巨大流量从未被确定,规划,稳定和巩固。潘杰希尔省的体育旅游是一个未知的行业,潘杰希尔体育旅游的调查很重要,因为潘杰希尔省是一个贫困省,旅游业可以帮助该省的经济发展、增加人民的财力、加强人们与外界的联系和传播贡献文化方面等等。在研究的最后,伴随着挑战和机遇,提出了解决方案和建议,以扩大和改善该地区的体育旅游产业。本研究的数据是通过阅读书籍、文章、分发来自(游客,运动员,教师,政治家,旅游专家和管理人员)的问卷、访谈和相关文件等来获得的,受访者了解潘杰希尔省体育旅游的现状,此次采访的主要目的是为了了解潘杰希尔省体育旅游的现状及其发展。使用SPSS和MS Excel软件对数据结果进行了分析,并以表格和图表的形式呈现了结论。调查显示,阿富汗的旅游系统存在广泛的问题,从缺乏明确的政府旅游政策到该国的高水平暴力和不安全以及财政问题。阿富汗体育旅游缺乏发展的最重要原因之一是不安全,由于阿富汗的不安全因素,大多数国家不允许其国民前往该国旅行;与此同时阿富汗旅游景点也存在交通问题:体育旅游面临的巨大挑战是缺乏铺砌的道路、必要的设施和设备以及运送游客的航班,这些问题都直接影响到潘杰希尔省和阿富汗对体育旅游的发展和认可。在发展体育旅游方面,阿富汗旅游局应通过完善基础设施、建立稳定的体育旅游组织等方式,提高其在该领域的表现。详细规划兴建现代体育设施、宾馆、交通道路、繁华旅游景点、住宅、娱乐设施,拓展旅游娱乐空间,加强管理和监督,为体育旅游者提供体育设施和游玩设施,确保安全加强财力使媒体广告和人力资源培训成为其战略的一部分。

关键词：体育体育旅游体育旅游管理阿富汗与潘杰希尔省