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CD9 role in proliferation, rejuvenation, and therapeutic applications

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Genes & Diseases 2024年第3期11卷 95-97页

作者： Sai Priyanka Kodam Neda baghban Mujib Ullah Institutefor Immunityand Transplantation Stem Cell Biology and Regenerative MedicineSchool of MedicineMolecular Medicine Department of MedicineStanford UniversityPaloAltoCA94304USA

The CD9 gene,also known as the Tspan29 gene,codes for a protein called CD9,which is a member of the tetraspanin family of transmembrane proteins.^(1) The CD9 protein is involved in various cellular processes,including cell proliferation,differentiation,adhesion,and migration.^(1,2) CD9 has also been found to play a role in the regulation of stem cell proliferation and differentiation.

关键词： migration. therapeutic CD9

Broadrange tunable slow and fast light in quantum dot photonic crystal structure

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Chinese Physics B 2017年第12期26卷 283-289页

作者： Alireza Lotfian Reza Yadipour Hamed baghban Department of Electrical and Computer Engineering University of Tabriz Tabriz *** Iran School of Engineering-Emerging Technologies University of Tabriz Tabriz *** Iran

Slow and fast light processes, based on both structural and material dispersions, are realized in a wide tuning range in this article. Coherent population oscillations （CPO） in electrically tunable quantum dot semiconductor optical amplifiers lead to a variable group index ranging from the background index （nbgd） to^30. A photonic crystal waveguide is then dispersion engineered and a group index of 260 with the normalized delay-bandwidth product （NDBP） of 0.65 is achieved in the proposed waveguide. Using comprehensive numerical simulations, we show that a considerable enhancement of slow light effect can be achieved by combining both the material and the structural dispersions in the proposed active QDPCW structure. We compare our developed FDTD results with analytical results and show that there is good agreement between the results, which demonstrates that the proposed electrically-tunable slow light idea is obtainable in the QDPCW structure. We achieve a total group index in a wide tuning range from nbgd to^1500 at the operation bandwidth, which shows a significant enhancement compared with the schemes based only on material or structural dispersions. The tuning range and also NDBP of the slow light scheme are much larger than those of the electrically tunable CPO process.

关键词： photonic crystal quantum dot slow light semiconductor optical amplifier

Estimating solubility of supercritical H_2S in ionic liquids through a hybrid LSSVM chemical structure model

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Chinese Journal of Chemical Engineering 2019年第3期27卷 620-627页

作者： Alireza baghban Jafar Sasanipour Sajjad Habibzadeh Zhi'en Zhang Chemical Engineering Department Amirkabir University of Technology Gas Engineering Department Petroleum University of Technology Key Laboratory of Low-grade Energy Utilization Technologies and Systems Ministry of Education of China Chongqing University

Development of a predictive tool for H_2S solubility estimation can be very helpful in gas sweetening industry. Experimental databases on H_2 S solubility were rarely available, so as reliable predictive models. Thus, in this study the H_2 S solubility database was established, and then a Least-Squares Support Vector Machine(LSSVM) approach based on the established database is proposed. Group contribution method was also applied to eliminate the model's dependence on experimental data. Accordingly, our proposed LSSVM model can predict H_2 S solubility as a function of temperature, pressure, and 15 different chemical structures of Ionic liquids(ILs). Root Mean Square Error(RMSE) and coefficient of determination(R^2) are 0.0122 and 0.9941, respectively. Moreover, comparison of our model with other existing models showed its reliability for H_2 S solubility in ILs. This can be very useful for engineers dealing with gas sweetening process in different applications of analysis, simulation, and designation.

关键词： Ionic liquid Hydrogen sulfide LSSVM Group contribution method

Manganese Oxide(MnO) and Cadmium Dioxide(CdO2) Attached to Carbon Nanotube(8, 0) as Anodes of Metal-ion Batteries: a DFT Study

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Chinese Journal of Structural Chemistry 2020年第3期39卷 415-420,376页

作者： SHAHABODDIN Shamshirband ALIREZA baghban NARJES Nabipour MEYSAM Najafi Department for Management of Science and Technology Development Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Information Technology Ton Duc Thang UniversityHo Chi Minh CityVietnam Department for Chemical Engineering Amirkabir University of TechnologyMahshahr CampusMahshahrIran Institute of Research and Development Duy Tan UniversityDa Nang 550000Vietnam Medical Biology Research Center Health Technology InstituteKermanshah University of Medical SciencesKermanshah 67149-67346Iran

Performance of carbon nanotube(CNT) and their attached metal oxides(manganese oxide(MnO) and cadmium dioxide(CdO2)) structures as anode electrodes in lithium-ion battery(LIB) and potassium-ion battery(KIB) are investigated. The Gibbs free energy of adsorption of Li and K atoms/ions on surfaces of CNT(8, 0), CNT(8, 0)-MnO and CNT(8, 0)-CdO2 are calculated. The cell voltages(Vcell) of Li and K atoms/ions adsorption on studied surfaces are examined. The Vcell of LIBs with metal-oxides attached to CNT(8, 0) as anode electrodes are higher than those KIBs. The adsorbed metal oxides(MnO and CdO2) on CNT(8, 0) increased the charges, electronic conductivity and Vcell of LIB and KIB, efficiently. The CNT(8, 0)-CdO2 as anode electrodes in LIB and KIB is proposed.

关键词： nanotube metal ion battery metal oxide cell voltage DFT

Polyacrylamide hydrogel application in sand control with compressive strength testing

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Petroleum Science 2019年第1期16卷 94-104页

作者： Mahsa baghban Salehi Asefe Mousavi Moghadam Samira Zargari MarANDi Department of Petroleum Engineering Chemistry and Chemical Engineering Research Center of Iran Faculty of Chemical Engineering Tarbiat Modares University

Sand production is one of the major problems in sandstone reservoirs. Different mechanical and chemical methods have been proposed to control sand production. In this paper, we propose a chemical method based on using polyacrylamide/chromium triacetate hydrogel to investigate sand production in a synthetic sandpack system. To this end, a series of bulk experiments including the bottle test and rheological analysis along with compression tests were conducted. Experimental results indicated that the compressive strength of the sandpack was increased as much as 30 times by injecting 0.5 pore volume of hydrogel. Also, it was found that the increases in cross-linker and polymer concentrations exhibited a positive impact on the compressive strength of the sandpack, mostly by cross-linker concentration(48 psi). Hydrogel with a higher value of cross-linker could retain its viscoelastic properties against the strain which was a maximum of 122% for 0.5 weight ratio of cross-linker/polymer. The presence of salts, in particular divalent cations, has a detrimental effect on the hydrogel stability. The maximum strain value applied on hydrogel in the presence of CaCl_2 was only about 201% as compared to 1010% in the presence of distilled water. Finally, thermogravimetric analysis and its derivative showed that the hydrogel could retain its structure up to 300 °C. The results of this study revealed the potential application of the hydrogel to control sand production.

关键词： Sand control - Rheology Hydrogel strength Compressive strength Sandpack

Effect of axial length and anterior chamber depth on the peripheral refraction profile

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International Journal of Ophthalmology(English edition) 2021年第2期14卷 292-298页

作者： Masoud Khorrami-Nejad Raha Moradi Alireza Akbarzadeh baghban Bahram Khosravi Translational Ophthalmology Research Center Farabi Eye HospitalTehran University of Medical SciencesTehran ***Iran School of Rehabilitation Shahid Beheshti University of Medical SciencesTehran ***Iran Proteomics Research Center Department of BiostatisticsSchool of Allied Medical SciencesShahid Beheshti University of Medical Sciences

AIM:To evaluate the effect of axial length(AL)and anterior chamber depth(ACD)on peripheral refractive profile in myopic patients compared to emmetropic ***:This cross-sectional study was conducted in right eyes of 58 participants of whom 38 were emmetropic and 20 were *** and peripheral refraction were measured at 10°,20°,and 30°eccentricities in nasal and temporal fields using an open-field *** Lenstar LS900 was used to measure ACD and *** participants were divided into three groups of short(24.5 mm)according to AL and three groups of low ACD(3.60 mm)according to ***:The mean age of the participants was 22.26±3.09 y(range 18-30 y).The peripheral mean spherical refractive error showed a hypermetropic shift in myopic and emmetropic groups although this shift was more pronounced in the myopic *** results showed significant changes in the spherical equivalent,J0,and J45 astigmatism in all gazes with an increase in eccentricity(P<0.001).The pattern of refractive error changes was more noticeable in long and short eyes versus normal AL ***,the pattern of peripheral refractive changes was much more prominent in the high ACD group versus the normal ACD group and in the normal ACD group versus the low ACD ***:Peripheral refraction changes are greater in participants with AL values outside the normal range and deeper ACD values compared to participants with normal AL and ACD.

关键词： anterior chamber depth axial length peripheral refraction

Capping-Barrier Layer Effect on Quantum Dot Optoelectronic Characteristics

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Chinese Physics Letters 2010年第10期27卷 117-120页

作者： A. Rostami H. Rasooli Saghai H. baghban N. Sadoogi Y. Seyfinejad photonic and Nanocrystal Research Lab (PNRL) Faculty of Electrical and Computer Engineering University of Tabriz Tabriz 51664 Iran School of Engineering Emerging Technologies University of Tabriz Tabriz 51664 Iran Department of Electrical Engineering Islamic Azad University Tabriz Branch Sardrud Center Tabriz Iran

We present a study of capping-barrier layer （CBL） effect on electro-optical properties of box- and spherical-shaped quantum dots as well as of the electronic transport of a QDs-array It is shown that increasing the CBL-width leads to a considerable enhancement in third-order optical nonlinear susceptibilities （14 times in the quadratic electro-optic effect, 31 times for ω = ω0/3 and 14 times for ω = ω0 in the third harmonic generation）. The capping-barrier layer thus can be employed as a degree of freedom in engineering the electro-optical specifications of quantum-dot-based devices.

关键词： QUANTUM dots OPTOELECTRONIC devices NONLINEAR optics QUANTUM optics ELECTRON transport QUADRATIC fields

Applying ANN,ANFIS and LSSVM Models for Estimation of Acid Solvent Solubility in Supercritical CO_(2)

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Computers, Materials & Continua 2020年第6期63卷 1175-1204页

作者： Amin Bemani Alireza baghban Shahaboddin Shamshirband Amir Mosavi Peter Csiba Annamaria R.Varkonyi-Koczy Petroleum Engineering Department Petroleum University of TechnologyAhwazIran Chemical Engineering Department Amirkabir University of TechnologyMahshahr CampusMahshahrIran Department for Management of Science and Technology Development Ton Duc Thang UniversityHo Chi MinhVietnam Faculty of Information Technology Ton Duc Thang UniversityHo Chi MinhVietnam Kalman Kando Faculty of Electrical Engineering Obuda UniversityBudapest1034Hungary Institute of Structural Mechanics Bauhaus University WeimarWeimarD-99423Germany Department of Mathematics and Informatics J.Selye UniversityKomarno94501Slovakia

In the present work,a novel machine learning computational investigation is carried out to accurately predict the solubility of different acids in supercritical carbon *** different machine learning algorithms of radial basis function,multi-layer perceptron(MLP),artificial neural networks(ANN),least squares support vector machine(LSSVM)and adaptive neuro-fuzzy inference system(ANFIS)are used to model the solubility of different acids in carbon dioxide based on the temperature,pressure,hydrogen number,carbon number,molecular weight,and the dissociation constant of *** evaluate the proposed models,different graphical and statistical analyses,along with novel sensitivity analysis,are carried *** present study proposes an efficient tool for acid solubility estimation in supercritical carbon dioxide,which can be highly beneficial for engineers and chemists to predict operational conditions in industries.

关键词： Supercritical carbon dioxide machine learning acid artificial intelligence solubility artificial neural networks(ANN) adaptive neuro-fuzzy inference system(ANFIS) least-squares support vector machine(LSSVM) multilayer perceptron(MLP)

Authentic Materials＇ Implication for ESP Settings

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Sino-US English Teaching 2011年第7期8卷 437-442页

作者： Zahra Zohoorian Vahid baghban Islamic Azad University Mashhad Branch Mashhad Iran

Although the emergence of the idea dates back to 1890s by Henry Sweet, many teachers involved in foreign language teaching have encouraged and discussed that using authentic materials is beneficial during the last decade However, the use of authentic materials in learning contexts such as ESP （English for Specific Purposes） has always been a matter of controversy and as Khaniya （2006） mentioned, a larger number of teachers are starting to identify the benefits of authentic materials and the options that such materials may provide for professional English teaching settings rather than traditional intensive ESL （English as a Second Language）. The present paper will presnet a short review of authentic materials while comparing them with textbook-based materials. Moreover, it will focus on the nature and quality features of authentic materials and particularly the motivating role these materials may play. Finally, the paper will present a list of authentic materials recommended in the literature for ESP as well as some guidelines for the selection and instruction of authentic reading materials in ESP courses.

关键词： authentic materials ESP (English for Specific Purposes) motivation