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Spatio-temporal suspended sediment fingerprinting under different land management practices

2012 Asian Pacific Conference on Energy,Environment and Sustainable Development(APEESD 2012)

作者： Alireza Dehghani Ali Akbar Safavi mohammad Jafar Nazemossadat seyed mohammad hessam mohammadi School of E.Learning instrumentation and automation Shiraz University School of Electrical and Computer Engineering Shiraz University School of Agriculture Shiraz University School of E. Learning instrumentation and automation Shiraz University

This paper presents an investigation of satellite data and ground data about aerosols and then modelsthe mentioned data over Shiraz using artificial neural networks. MODIS satellite data are available on 36 various frequency bands. In this study, a good correlation between ground data and the 10 first satellite image bands is being shown. Specially, the best correlation was found in band number 8. Therefore, using neural networks and ground data along with satellite information, a model of aerosols is constructed. In the mentioned model, satellite data of band 8 and ground data are used as network input and output, respectively. The results show the effectiveness of the proposed model.

关键词： Aerosols Pollution Monitoring Modeling Neural Network Shiraz MODIS

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International Journal of Sediment Research 2023年第4期38卷 481-493页

作者： Maziar mohammadi Abdulvahed Khaledi Darvishan Nader Bahramifar seyed Jalil Alavi Department of Watershed Management Engineering Faculty of Natural Resources Tarbiat Modares University Department of Geography University of Zurich Department of Environmental Science Faculty of Natural Resources Tarbiat Modares University Department of Forestry Faculty of Natural Resources Tarbiat Modares University

Understanding spatio-temporal suspended sediment dynamics is more important in large watersheds due to the decisive role of local source apportionment in sediment transport and yield. The Talar River with a large mountainous watershed in northern Iran, which plays a vital role in water supply for agriculture and drinking, recently has faced quality degradation. The current study explores the relative contribution of suspended sediment sources using geochemical tracers and fingerprinting techniques in high and low flow periods along this river. Soil samples were collected from four major land uses including rangeland, forest, rainfed agriculture, and irrigated agriculture, as well as riverbanks and riparian zones along the main river. Furthermore, suspended sediment was sampled at four sampling points along the main river in two seasons. Land use apportionment in suspended sediment yield was calculated using an unmixing model included in a newly developed package(Finger Pro) in high flow and low flow, separately. The fingerprinting results showed a highly spatio-temporal dynamic for sediment source contribution along the main river in high and low flow periods. Natural land uses(forest and rangeland) in upstream reaches and agricultural land uses and riverbank sources in downstream reaches showed higher contributions to suspended sediment yield. The mean contribution of various land uses for both high and low flow periods indicated substantial contributions from forest(34%-41%) and riverbanks(31%-33%). The significant difference in sediment geochemical properties for the two flow seasons highlights the important role of the prevailing climatic-hydrologic condition on river ***, this issue indicates that sediment source contributions and transfer mechanisms are highly dynamic in Talar River watershed. The current study outcomes provide essential knowledge to create a robust strategy for mitigation of river sediment pollution.

关键词： Land use River water quality Sediment fingerprinting Sustainability Unmixing model

Functionalized Graphene Oxide with Bismuth and Titanium Oxide Nanoparticles for Efficiently Removing Formaldehyde from the Air by Photocatalytic Degradation-Adsorption Process

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Journal of Analysis and Testing 2023年第4期7卷 444-458页

作者： Mohsen mohammadi Asl Hamid Shirkhanloo Nabiollah Mansouri seyed Ali Reza Haji seyed Mirzahosseini Farideh Atabi Department of Environmental Engineering Faculty of Natural Resource and EnvironmentScience and Research BranchIslamic Azad UniversityTehran 14778-93855Iran Research Institute of Petroleum Industry(RIPI) West BoulevardOlympic VillageTehran 14857-33111Iran

Formaldehyde(HCHO)is formed through the oxidation of volatile organic compounds(VOCs)and can cause human *** oxide and titanium oxide nanoparticles-functionalized nanographene oxide(Bi_(2)O_(3)/TiO_(2)@NGO)were used to rapidly remove the HCHO from the air by a photocatalytic degradation-adsorption process(PC-DAP).The formaldehyde vapor in pure air was generated in a dynamic system within a chamber,and flowed over Bi_(2)O_(3)/TiO_(2)@NGO adsorbent inside a fixed-bed quartz reactor(FBQR)under UV irradiation at optimized conditions(250C).At atmospheric pressure,the flow rate and gas hourly space velocity(GHSV)were adjusted to 300 mL/min and 100-450 L/h,*** radicals of HCHO and nanographene oxide(NGO)were generated through the UV-photochemical process,enhancing the chemical adsorption through the radicals’*** the other hand,the semi-degradation process by catalytic oxidation process converted some HCHO into raw materials of CO_(2)and H_(2)O,while the unconverted HCHO was physically absorbed by ***,the HCHO concentration in the outlet system was measured by gas chromatography with a flame ionization detector(GC-FID)after derivatizing formaldehyde with 2,4-dinitrophenylhydrazine(DNPH)and ***,efficient removal of HCHO from the air,the removal efficiency of more than 95%,was achieved through physical/chemical adsorption and the *** mean removal efficiencies for HCHO with Bi_(2)O_(3)-TiO_(2)@NGO,TiO_(2)@NGO,Bi_(2)O_(3)@NGO,and NGO were 98.7%,73.6%,61.8%,and 11.4%,respectively(n=10,RSD<5%).The methodology was validated by spiking different concentrations of standard HCHO into pure air.

关键词： Formaldehyde removal Air Functionalized graphene oxide UV radiation Photocatalytic degradation-adsorption process

Solvent extraction of rubidium from gold waste using conventional SX and new CFE methods

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Rare Metals 2015年第11期34卷 818-828页

作者： mohammad Reza Tavakoli mohammadi seyed mohammad Javad Koleini Sepideh Javanshir Hossein Abolghasemi Mahmoud Abdollahy Mineral Processing Department Tarbiat Modares University Mining Engineering Department University of Birjand Oil and Gas Center of Excellence School of Chemical Engineering College of Engineering University of Tehran

Solvent extraction（SX） of rubidium（Rb） from leaching filtrate of gold waste（GW） in Mouteh Processing Plant by 18-crown-6（18C6） was studied. High potential of new column flotoextraction（CFE） method in extraction of Rb from dilute solutions was also demonstrated. First, the factors affecting SX of Rb from a synthetic rubidium sulfate solution(containing 100 mg·L-1Rb) were identified.0.05 mol·L-118C6 in kerosene, 0.02 mol·L-1picric acid in aqueous phase, aqueous to organic（A/O） ratio of 1, p H7 and mixing time of 15 min are the optimum values for affective factors. The three-stage precipitation with sodium carbonate, p H adjustment with sulfuric acid and two-stage evaporation and crystallization were conducted to purify the leaching from impurities such as Fe, Al, Mn, Ca and especially competing cations of K and Na. Almost complete extraction of Rb and K from final filtrate containing 0.08 mol·L-1picric acid was performed using 0.2 mol·L-118C6 in kerosene. The Rb and K strippings of 99.12 % and 9.93 %, respectively, are obtained with 2 mol·L-1nitric acid with A/O ratio of 2. Finally, the performance comparison of the CFE and SX methods in similar conditionsshows increased extraction of K and Rb by 16 % and 5 %,respectively, using CFE method.

关键词： Rubidium Gold waste Solvent extraction Column flot

The lack of association between different LDL-C levels and oxidized LDL in patients with type 2 diabetes

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Chronic Diseases and Translational Medicine 2023年第4期9卷 329-335页

作者： Soghra Rabizadeh seyed Arsalan seyedi seyed Ali Nabipoorashrafi Maryamossadat Omidvar Siahkalmahalleh Amirhossein Yadegar Fatemeh mohammadi Armin Rajab Alireza Esteghamati Manouchehr Nakhjavani Endocrinology and Metabolism Research Center(EMRC) Vali-Asr HospitalSchool of MedicineTehran University of Medical SciencesTehranIran

Background:High concentrations of low-density lipoprotein cholesterol(LDL-C)have been a known risk factor for cardiovascular ***,the role of oxidized LDL(ox-LDL)in forming atherosclerosis plaque has been ***,it has not yet been proven that atherogenic LDL-C byproducts like ox-LDL will decrease by keeping the LDL levels at the desired *** study aimed to examine the relationship between LDL-C and ox-LDL in different LDL-C values in patients with type 2 diabetes(T2D).Methods:In this cross-sectional study,347 patients with T2D who received statins were ***-C values were defined into four groups as LDLC100 mg/dL in patients with ***,the revealed association of ox-LDL with TG level and TG/HDL ratio may be considered in the clinic.

关键词： atherosclerosis diabetes mellitus lipids lipoproteins low-density lipoprotein oxidized LDL

Validation of EST-derived STS markers localized on ***-3BS for Fusarium head blight resistance in wheat using a‘Wangshuibai’derived population

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Journal of Genetics and Genomics 2008年第10期35卷 625-629页

作者： Amir mohammad Naji mohammad Moghaddam mohammad Reza Ghaffari Hashem Pour Irandoost Laleh Karimi Farsad seyed Mostafa Pirseyedi seyed Abolghasem mohammadi Behzad Ghareyazie Mohsen Mardi Department of Agronomy and Crop Breeding Shahed University of Tehran Department of Agronomy and Plant Breeding University of Tabriz Department of Genomics Agricultural Biotechnology Research Institute of Iran

A few EST-derived STS markers localized on ***-3BS, a major QTL for resistance to Fusarium head blight （FHB） in wheat, have been previously identified in the ＇Sumai 3＇/＇Stoa＇ population. In this study, we used a ＇Wangshuibai＇（resistant）/＇Seri82＇（susceptible） derived population, linkage group, QTL, and quantitative gene expression analysis to assess the genetic background dependence and stability of the EST-derived STS markers for use in marker aided selection to improve FHB resistance in wheat. Based on our results, a QTL in the map interval of Xsts3B-138_1-Xgwrn493 on chromosome 3BS was detected for FHB resistance, which accounted for up to 16% of the phenotypic variation. BLASTN analysis indicated that Xsts3B-138_1 sequence had significant similarity with the resistance gene analogue. Real-time quantitative PCR showed that the relative expression of Xsts3B-138_1 in ＇Wangshuibai＇ at 96 h after inoculation was 2.6 times higher than ＇Seri82＇. Our results underlined that EST-derived STS3B-138 markers could be predominantly used in marker aided selection to improve FHB resistance in wheat.

关键词： EST-derived STS markers Qfhs.ndsu-3BS Fusarium head blight wheat

Adaptive Fuzzy Sliding Mode Control of Under-actuated Nonlinear Systems

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International Journal of Automation and computing 2018年第3期15卷 364-376页

作者： Amir Hossein Davaie Markazi mohammad Maadani seyed Hassan Zabihifar Nafiseh Doost-mohammadi School of Mechanical Engineering Iran University of Science and Technology

A new extension of the conventional adaptive fuzzy sliding mode control（AFSMC） scheme, for the case of under-actuated and uncertain affine multiple-input multiple-output（MIMO） systems, is presented. In particular, the assumption for non-zero diagonal entries of the input gain matrix of the plant is relaxed. In other words, the control effect of one actuator can propagate from a subgroup of canonical state equations to the rest of equations in an indirect sense. The asymptotic stability of the proposed AFSM control method is proved using a Lyapunov-based methodology. The effectiveness of the proposed method for the case of under-actuated systems is investigated in the presence of plant uncertainties and disturbances, through simulation studies.

关键词： Adaptive fuzzy sliding mode control (AFSMC) nonlinear systems uncertain systems under-actuated systems remoteenvironmental monitoring units (REMUS).

Complications of intrastromal bevacizumab injection in lamellar keratoplasty

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International Journal of Ophthalmology(English edition) 2020年第2期13卷 356-358页

作者： mohammad Soleimani Ahad Shahbazi Nader mohammadi seyed Ali Tabatabaei Ocular Trauma and Emergency Department Eye Research CenterFarabi Eye HospitalTehran University of Medical SciencesTehran ***Iran

Dear Editor,We would like to report complications of intrastromal bevacizumab injection for corneal neovascularization(CNV)after lamellar keratoplasty(LK)in two *** is a significant risk factor for graft *** leads to graft failure by disturbing the immune function of the cornea after penetrating keratoplasty(PKP).Studies reported that more than fifty percent of graft failure occurs in this condition[1].

关键词： bevacizumab Complications lamellar keratoplasty

Dynamic Adaptive Finite Element Analysis of Acoustic Wave Propagation Due to Underwater Explosion for Fluid-structure Interaction Problems

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Journal of Marine Science and Application 2015年第3期14卷 302-315页

作者： seyed Shahab Emamzadeh mohammad Taghi Ahmadi Soheil mohammadi Masoud Biglarkhani Islamic Azad University Kangan Branch Kangan *** Iran Department of Civil Engineering Tarbiat Modares University Tehran 14115-143 Iran School of Civil Engineering University of Tehran Tehran 4563-11155 Iran Department of Civil Engineering University of Hormozgan Hormozgan 3995 Iran

在这份报纸，进附近的结构上的水和他们的效果里的远域爆炸波浪的繁殖的调查被执行。为远域结构，包围结构的液体的运动可以被假定小，允许管理液体方程的 linearization。这个问题的完全的分析必须在包围液体包含结构和爆炸波浪的繁殖... 详细信息

在这份报纸，进附近的结构上的水和他们的效果里的远域爆炸波浪的繁殖的调查被执行。为远域结构，包围结构的液体的运动可以被假定小，允许管理液体方程的 linearization。这个问题的完全的分析必须在包围液体包含结构和爆炸波浪的繁殖的动态反应的同时的答案。在这研究，一个动态适应有限元素过程被建议。它到一个 2D 液体结构相互作用的解决方案的应用程序在时间域被调查。研究包括：一) 计算远地散布波浪由于在水下看情况时间的声学的波浪方程的爆炸包括答案， b ) 用联合 Euler-Lagrangian 途径的液体结构相互作用分析，和 c ) 适应有限元素过程采用错误估计，并且重新协调。时间的网孔改编被格子的本地新生基于压力功能的弯曲用时间依赖者错误指示物完成。作为结果，全面反应被一个动人的网孔更好比一个相等的一致网孔预言。另外，当精确性被改进时，为大问题的计算的费用被减少。

关键词：自适应有限元分析冲击波传播水下爆炸流体结构相互作用欧拉-拉格朗日方法时间依赖性有限元程序网格自适应

具有最优玻璃形成能力的Zr-Co(Cu)-Al大块金属玻璃及其压缩性能（英文）

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Transactions of Nonferrous Metals Society of China 2018年第8期28卷 1543-1552页

作者： Masoud mohammadi RAHVARD Morteza TAMIZIFAR seyed mohammad Ali BOUTORABI School of Materials Science and engineering Center of Excellence for High Strength Alloys Technology Iran University of Science and technology Tetuan *** Iran

采用铜模吸铸法在三元Zr_(56)Co_(28)Al_(16)和四元Zr_(56)Co_(28)-xCuxAl_(16)(x=2,4,5,6,7,摩尔分数,%)非晶合金中形成大块金属玻璃(BMGs)。本研究主要目的是找到四元Zr Co(Cu)Al合金中形成大块金属玻璃的最优成分,并提高母合金的塑... 详细信息

采用铜模吸铸法在三元Zr_(56)Co_(28)Al_(16)和四元Zr_(56)Co_(28)-xCuxAl_(16)(x=2,4,5,6,7,摩尔分数,%)非晶合金中形成大块金属玻璃(BMGs)。本研究主要目的是找到四元Zr Co(Cu)Al合金中形成大块金属玻璃的最优成分,并提高母合金的塑性。采用X射线衍射(XRD)技术、透射电镜(TEM)和差示扫描量热法(DSC)研究非晶合金的结构及其玻璃形成能力(GFA)。此外,利用压缩试验、显微硬度、纳米压痕和扫描电镜(SEM)讨论塑性提高的可能机制。含铜合金中玻璃形成能力最强的是Zr_(56)Co_(22)Cu_6Al_(16)合金,与基体合金相似。此外,Zr_(56)Co_(22)Cu_6Al_(16)大块金属玻璃的塑性从基体合金的3.3%显著增加到6%。最后,结合铜和钴的正混合热,讨论合金塑性和GFA的变化。

关键词：大块金属玻璃锆基合金玻璃形成能力塑性