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Rheological properties of low fat yogurt containing cress seed gum

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Agricultural Sciences 2013年第9期4卷 29-32页

作者： Armita Behnia Hojjat Karazhiyan Razieh Niazmand Abdol reza mohammadi Nafchi Department of Chemical Engineering Islamic Azad University Shahrood Branch Shahrood Iran Department of Food Chemistry Research Institute for Food Science and Technology (RIFST) Mashhad Iran Department of Food Science and Technology Islamic Azad University Damghan Branch Damghan Iran Department of Food Science and Technology Islamic Azad University Torbat-Heydarieh Branch Mashhad Iran

Yogurt—a milk based mix fermented by lactic acid bacteria is a valuable health food for both young and old. Milk is the main ingredient of yogurt. However, most yogurts contain additional solids such as milk solids nonfat to boost the nonfat milk solids. Stabilizers such as natural gums are added to improve and maintain gel firmness and consistency, while also for many people to improve appearance and mouth feel. Hydrocolloidsspecifically stabilize gel structure, increaseviscosity and either from networks with milk constituents and establish a separate gel structure. In current research, a natural local plant Iranian hydrocolloid, cress seed gum, is added to yogurt formulation and its rheological propertiesare evaluated using a rotational viscometer. Different famous rheological models have beenused to fit shear stress-shear rate data’s. The results demonstrated that cress seed gum has a good potential to be used as a stabilizer in yogurt formula.

关键词： Yogurt Hydrocolloids Cress Seed Gum Rheological Properties Viscosity

Light Scattering and SAXS Study of AOT Microemulsion at Low Size Droplet

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Soft Nanoscience Letters 2012年第1期2卷 8-12页

作者： Soheil Sharifi Masoud Amirkhani Jahanbakhsh Mashaiekhy Asla Mohamad reza mohammadi Othmar Marti 不详

We study collective diffusion coefficient (Dc) of Water-in-oil nanoemulsions (L2 phase) stabilized by AOT and dispersed in n-Decane oils by dynamic light scattering (DLS). At constant water concentration we vary the oil concentration and there is clear evidence for a changing collective diffusion coefficient of the droplets in AOT nanoemuslion. The collective diffusion coefficient in AOT nanoemulsions is studied from relaxation investigations with dynamic light scattering. Also, we study the collective diffusion coefficient (Dc) of droplets with add the TBAC to the droplets of AOT nanoemulsion. We discuss the results with study structural investigations with small-angle x-ray scattering. The results of this study suggest that the formation of non-spherical aggregates at low concentration of droplets can describe the behavior of the collective diffusion coefficient at AOT nanoemulsion.

关键词： Nano-droplet Microemulsions Light scattering SAXS Diffusion

Road safety data collection systems in Iran: A comparison based on relevant organizations

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Chinese Journal of Traumatology 2020年第5期23卷 265-270页

作者： Homayoun Sadeghi-Bazargani Sakineh Sharifian Davoud Khorasani-Zavareh Raana Zakeri Mehdi Sadigh Mina Golestani Mousa Amiri reza Masoudifar Farzad Rahmani Nasser Mikaeeli Javad Namvaran Khalil Pour-Ebrahim Mahdi rezaei Babak Arabzadeh Bahram Samadirad Aliashraf Seyffarshad Fariba Mirza-mohammadi-Teimorloue Shahin Kazemnezhad Soudabe Marin Saeede Sheikhi reza mohammadi Research Center for Evidence-Based Medicine Tabriz University of Medical SciencesTabrizIran Department of Health in Emergencies and Disasters School of Public Health and SafetyShahid Beheshti University of Medical SciencesTehranIran Workplace Health Promotion Research Center(WHPRC) Department of Health in Emergencies and DisastersShahid Beheshti University of Medical SciencesTehranIran Department of Health Services Management Iranian International Safe Community Support CenterTabriz University of Medical SciencesTabrizIran Road Traffic Injury Research Center Tabriz University of Medical SciencesTabrizIran Iranian Traffic Police TehranIran University of Tabriz Islamic Azad TabrizIran Department of Emergency Medicine Road Traffic Injury Research CenterTabriz University of Medical SciencesTabrizIran Iranian Traffic Police TabrizIran Payame Noor University(PNU) TehranIran Karafarin Insurance TabrizIran Legal Medicine Research Center Legal Medicine OrganizationTehranIran Shohada Medical Research and Training Hospital Tabriz University of Medical SciencesTabrizIran Department of Biostatistics and Epidemiology School of HealthTabriz University of Medical SciencesTabrizIran Department of Neurobiology Care Sciences and Society(NVS)H1Division of Family Medicine and Primary CareHuddingeSweden

Purpose:Various organizations and institutions are involved in road traffic injury(RTI)and crash registration such as police,forensic medicine organization,hospitals and emergency medical *** there is a substantial uncertainty in interpreting the data,duplicated data collection and missing data in relation to RTI in most *** study aims to identify data sources for RTI surveillance in Iran and to explore traffic safety data source domains,data elements and detailed information by each data ***:This is a qualitative study which was conducted in 2017 in *** were collected employing semi-structured interviews with informants in road safety organizations in relation to traffic safety including Police,Ministry of Health and Medical Education as well as Forensic Medicine Organization and other *** completing the preliminary extraction information,the minimum data set was used and compared in each ***:Eight different organizations relevant to road traffic safety were *** main domain of data provided by each one consists of Emergency Medical System form,Police KAM114 form,Ministry of Transport and Road Administration,Red Crescent Organization/Disaster Management Information System,Ministry of Health and Medical Education,Forensic Medicine Organization,Insurance Company and Ministry of *** system has its own database,based upon its scope and mainly at crash and postcrash status and little on pre-crash ***:All current registry systems are not surveillance systems for RTI *** data have been collected in various registry systems in Iran,but most of the collected variables are duplicated in each *** the other hand,some variables like alcohol and substance abuse,child seat belt,helmet use in relation to RTI prevention are missed in all ***,it is a critical need to integrate and establish a comprehensive surveillance system,with focus on the

关键词： Accidents,traffic Integrated surveillance system Prevention and control

原油沥青质含量对纳米颗粒-十二烷基硫酸钠发泡二氧化碳泡沫稳定性的影响

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石油勘探与开发 2024年第1期51卷 212-222页

作者： SADEGHI Hossein KHAZ'ALI Ali reza mohammadi Mohsen 伊斯法罕理工大学化学工程系伊朗伊斯法罕84156-83111 丹麦技术大学丹麦海洋工程技术中心丹麦灵比2800

采用十二烷基硫酸钠(SDS)表面活性剂和SiO_(2)纳米颗粒作为发泡体系,在不同原油沥青质含量下进行泡沫稳定性实验,测量CO_(2)泡沫半衰期;采用扫描电子显微图像、紫外分光光度法测试和Zeta电位测量,分析沥青质降低CO_(2)泡沫稳定性的机理... 详细信息

采用十二烷基硫酸钠(SDS)表面活性剂和SiO_(2)纳米颗粒作为发泡体系,在不同原油沥青质含量下进行泡沫稳定性实验,测量CO_(2)泡沫半衰期;采用扫描电子显微图像、紫外分光光度法测试和Zeta电位测量,分析沥青质降低CO_(2)泡沫稳定性的机理。研究表明:当合成油与发泡体系质量比为1∶9时,合成油沥青质质量分数从0增至15%,SDS稳定泡沫半衰期从751 s减少至239 s,SDS-SiO_(2)稳定泡沫半衰期从912 s缩短至298 s;当合成油与发泡体系质量比为2∶8时,随着沥青质质量分数增大,SDS稳定泡沫半衰期从526 s缩短至171 s,SDS-SiO_(2)稳定泡沫半衰期从660 s缩短至205 s。由于沥青质与SDS和SiO_(2)纳米颗粒在水相中的相互作用,Zeta电位绝对值减小,颗粒表面电荷降低,导致薄液膜两侧界面之间的排斥力减小,从而破坏泡沫稳定性。

关键词： CO_(2)泡沫泡沫稳定性沥青质二氧化硅纳米颗粒十二烷基硫酸钠(SDS) 排斥力表面电荷 Zeta电位

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The effects of different autumn-seeded cover crops on subsequent irrigated corn response to nitrogen fertilizer

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Light Scattering and SAXS Study of AOT Microemulsion at Low Size Droplet

Agricultural Sciences（农业科学） 2010年第3期

作者： Gholam reza mohammadi Mohammad Eghbal Ghobadi

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Influences of adsorptions of some inorganic molecules on electronic, optical, and thermodynamic properties of Mg_(12)O_(12) nanocage: A computational approach

Soft Nanoscience Letters（软纳米科学报） 2012年第1期

作者： Soheil Sharifi Masoud Amirkhani Jahanbakhsh Mashayekhi Asla Mohammad reza mohammadi Othmar Marti

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Chinese Physics B 2018年第8期27卷 280-289页

作者： Asghar mohammadi Hesari Hamid reza Shamlouei Chemistry Department Lorestan UniversityI(horram AbadLorestanIraa

According to density functional theory, we investigate the effects of BF3, BF4, BCI3, A1F3, AICI3, A1Br3, 13eF3, GaF3, GaC13, GaBr3, NO3, BS2, BSO, BO2, F2, PFs, PC15, and ASF5 molecules on the geometric, electronic, linear, and nonlinear optical properties of an Mg12012 nanocage. The thermodynamic stability and feasibility of the adsorption process are investigated by analyzing the free energy. It is shown that the adsorptions of almost all molecules on the Mg12OI2 surface are exothermic. The calculations of the polarizability of these nanoclusters show that among the studied molecules, BeF3 has the largest influence on the polarizability value （a≈315 a.u., the unit a.u. is short for atomic unit）. The static first hyperpolarizability （β0） value is increased in the presence of these superhalogens. This increase is greatest for BeF3 and BF4 of which the highest value of the first hyperpolarizability （βO≈ 5775 a.u.） is related to a BeF3_c（e@Mgl2Ol2） nanocluster. The adsorption position is a key to estimating the value of increasing the first hyperpolarizability.

关键词： Mg1201 polarizability hyperpolarizability binding energy nanocage DFT calculation

Synthesis of a PEBAX-1074/ZnO nanocomposite membrane with improved CO_2 separation performance

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Journal of Energy Chemistry 2017年第3期26卷 454-465页

作者： Navid Azizi Toraj mohammadi reza Mosayebi Behbahani Research and Technology Center of Membrane Processes Chemical Engineering DepartmentIran University of Science and Technology (IUST) Gas Engineering Department Petroleum University of Technology

In this investigation, polymeric nanocomposite membranes（PNMs） were prepared via incorporating zinc oxide（ZnO） into poly（ether-block-amide）(PEBAX-1074) polymer matrix with different loadings. The neat membrane and nanocomposite membranes were prepared via solution casting and solution blending methods, respectively. The fabricated membranes were characterized by field emission scanning electron microscopy（FESEM） to survey cross-sectional morphologies and thermal gravimetric analysis（TGA）to study thermal stability. Fourier transform infrared（FT-IR） and X-ray diffraction（XRD） analyses were also employed to identify variations of the chemical bonds and crystal structure of the membranes, respectively. Permeation of pure gases, CO, CHand Nthrough the prepared neat and nanocomposite membranes was studied at pressures of 3–18 bar and temperature of 25 °C. The obtained results showed that the fabricated nanocomposite membranes exhibit better separation performance compared to the neat PEBAX membrane in terms of both permeability and selectivity. As an example, at temperature of 25 °C and pressure of 3 bar, COpermeability, ideal CO/CHand CO/Nselectivity values for the neat PEBAX membrane are 110.67 Barrer, 11.09 and 50.08, respectively, while those values are 152.27 Barrer,13.52 and 62.15 for PEBAX/ZnO nanocomposite membrane containing 8 wt% ZnO.

关键词： Nanocomposite membrane ZnO nanoparticles PEBAX-1074 CO2/CH4 separation

Synthesis and Characterization of Indium Niobium Oxide Thin Films via Sol—Gel Spin Coating Method

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Journal of Materials Science & Technology 2013年第10期29卷 923-928页

作者： Saeed mohammadi Mohammad reza Golobostanfard Hossein Abdizadeh School of Metallurgy and Materials Engineering College of EngineeringUniversity of Tehran Center of Excellence for High Performance Materials University of Tehran

In the present study, niobium-doped indium oxide thin films were prepared by sol-gel spin coating technique. The effects of different Nb-doping contents on structural, morphological, optical, and electrical properties of the films were characterized by means of X-ray diffraction （XRD）, field emission scanning electron microscopy （FESEM）, atomic force microscopy （AFM）, UV-Vis spectroscopy, and four point probe methods. XRD analysis confirmed the formation of cubic bixbyite structure of In203 with a small shift in major peak position toward lower angles with addition of Nb. FESEM micrographs show that grain size decreased with increasing the Nb-doping content. Optical and electrical studies revealed that optimum opto-electronic properties, including minimum electrical resistivity of 119.4 × 10^-3 Ω cm and an average optical transmittance of 85% in the visible region with a band gap of 3.37 eV were achieved for the films doped with Nb-doping content of 3 at.%. AFM studies show that addition of Nb at optimum content leads to the formation of compact films with smooth surface and less average roughness compared with the prepared ln2O3 films.

关键词： Indium oxide Nb-doping Sol-gel spin coating Transparent conductive oxide Opto-electronic properties