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Mixotrophic Cultivation of Scenedesmus dimorphus for Enhancing Biomass Productivity and Lipid Yield Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210109
Natasha Laraib, Ali Hussain, Arshad Javid, Syed Mohsin Bukhari, Waqas Ali, Maleeha Manzoor, Faiza Jabeen 
Erosion Susceptibility Analysis in Datça and Bozburun Peninsulas, Turkey Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210107
Beyza Ustaoğlu, Cercis İkiel, Ayşe Atalay Dutucu, Derya Evrim KoçThe objective of this paper is to determine the erosion susceptibility areas and evaluate their relationship with land cover in Datça and Bozburun Peninsulas. The research area is located in the southeast of Turkey in the Mediterranean Basin which is one of the 36 biodiversity hotspot areas in the world. RUSLE method was applied to determine amount of soil loss in the study. It was determined that

Study of Background Correction of GammaRay Spectrometry Using Reference Materials Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Reza Pourimani, Monire MohebianOne of the important problems of environmental gammaray spectrometry is the correction of background radiation. Part of the background radiation passes through the sample into the container before entering the detector, and some of them are absorbed or scattered by the sample material, so it is necessary to make corrections to increase the measurement accuracy. The Ptype coaxial highpurity germanium

Detection of Alteration Zone with Multispectral ASTER Data in Ghabaghloujeh Gold Deposit (Kordestan, Iran) Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
S. Niroomand, D. Poreh, H. TajeddinGhabaghloujeh gold deposit is located in the SanandajSirjan Zone and is hosted by NEtrending ductile shear zones and younger brittle fractures. The hydrothermal alteration zones are fairly developed within and around the lenticular intrusive body. Since the vegetation coverage is low, multispectral remotely sensed data of ASTER employed to extract the alteration zones; which might vector mineralized

Dynamical Study of an EcoEpidemiological Delay Model for Plankton System with Toxicity Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Nilesh Kumar Thakur, Smriti Chandra Srivastava, Archana OjhaIn this paper, we analyze the complexity of an ecoepidemiological model for phytoplankton–zooplankton system in presence of toxicity and time delay. Holling type II function response is incorporated to address the predation rate as well as toxic substance distribution in zooplankton. It is also presumed that infected phytoplankton does recover from the viral infection. In the absence of time delay

Analysis of a Virus Model with Cure Rate, General Incidence Function and Time Delay Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Pegah Taghiei Karaji, Nemat NyamoradiIn this work, we investigate a virus model with time delay and function of general incidence. We illustrate the solvability through solutions for the model. Using Lyapunov functionals, we prove that if the basic reproduction number \(R_0 \le 1\), then the infectionfree equilibrium is globally asymptotically stable, and when \(R_0 > 1\), the infection will persist by the global asymptotic stability

Solving the Fractional Optimal Control of a SpringMassViscodamper System with Caputo–Fabrizio Fractional Operator Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Sara Ghaderi, Aghileh Heydari, Sohrab EffatiThe present paper investigates and develops a new technique based on the Chebyshev cardinal functions for solving fractional optimal control problems of a springmassviscodamper system involving the Caputo–Fabrizio fractional operator. Through the way, the new operational matrix of Caputo–Fabrizio fractional operator is achieved for Chebyshev cardinal functions. Moreover, we apply a direct approach

Stress–Strength Reliability for the Generalized Inverted Exponential Distribution Using MRSS Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Amal S. Hassan, Amer AlOmari, Heba F. NagyIn this paper, we study the estimation of the stress–strength reliability model when the stress and the strength variables are modeled by two independent but not identically distributed random variables from the generalized inverted exponential distributions. The stress strength reliability estimator is considered using, mainly, median ranked set sampling (MRSS) compared to ranked set sampling (RSS)

Femtosecond Laser Induced Modifications in Optical Properties and Surface Morphology of Copper Boron Oxide Thin Films Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Rehan Ahmad, Khurram Siraj, Rabia Mushtaq, Muneeb Irshad, Johannes David PedarnigWe report on femtosecond (130 femto second) laser pulse removal and modification in Copper Boron Oxide thin films (CuBO2) deposited on silicon substrate. The samples were irradiated with 100 to 500 number of laser pulses at room temperature. Microsize constructions on the surface of exposed CuBO2 thin films were produced and was observed using Scanning Electron Microscope (SEM). Selfprepared shapes

Approximation by the Parametric Generalization of Baskakov–Kantorovich Operators Linking with Stancu Operators Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
S. A. Mohiuddine, Naeem Ahmad, Faruk Özger, Abdullah Alotaibi, Bipan HazarikaWe construct the Baskakov–Kantorovich operators based on shape parameter \(\alpha\) by linking with Stancu operators to approximate functions over unbounded intervals. We establish local approximation results with the help of suitable modulus of continuity, \({\mathcal {K}}\)functional and Lipschitztype space. Further, we obtain the weighted approximation properties and calculate the rate of convergence

On the Weighted Piecewise Pseudo Almost Automorphic Solutions Mackey–Glass Model with Mixed Delays and Harvesting Term Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Manel Amdouni, Farouk Chérif, Cemil TunçIn the present work, we employ the new concept of weighted piecewise pseudo almost automorphic functions and study the impulsive Mackey–Glass model with mixed delays and nonlinear harvesting term. First, we give essential lemmas and some composition theorems related to the considered space. Second, by a suitable fixedpoint theorem and the properties of the weighted piecewise pseudo almost automorphic

Investigation of the optical nonlinear properties of chlorophyll B using zscan technique Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
A. Ghanem, M. D. Zidan, M. S. ELDaherThe nonlinear optical properties of chlorophyll B dissolved in chloroform have been studied using singlebeam zscan technique with a CW Laser at wavelength λ = 635 nm. It was found that the chlorophyll B has a large 3rd nonlinearity. The nonlinear absorption coefficient β and the nonlinear refractive index n2 were estimated from fitting of the experimental data, which was found to be proportional

Generalized Derivations and Generalized Jordan Derivations of Quaternion Rings Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
H. Ghahramani, M. N. Ghosseiriand, L. Heidari ZadehLet S be a unital ring in which 2 is invertible, and let \(R=H(S)\) be the quaternion ring over S. In this paper, we characterize the generalized derivations of R and show that every generalized Jordan derivation on R is a generalized derivation. We also consider the question when a derivation (generalized derivation) of a quaternion ring is an inner derivation (generalized inner derivation). In addition

Determination of Radioactivity in Building Materials and Associated Radiation Hazards by Full Spectrum Analysis Approach Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Hossein Bazrafshan, Rahim KhabazIn this study, we used the combination of gamma ray spectroscopy and full spectrum analysis method to calculate the radioactivity concentrations of 40K, 232Th and 226Ra radioisotopes in the building materials. The activities of 40K, 232Th and 226Ra were between (36.79 and 559.82), (1.29 and 36.01) and (1.20 and 32.62) Bq kg−1, respectively. The absorbed dose rate in air (D), the annual effective dose

High Pressure Effects on the Phonon Frequency Spectrum of Silicon Nanoparticle Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Sirwan K. Jalal, Adnan M. AlSheikh, Raed H. AlSaqaThis study investigates the effect of high pressure on the phonon frequency spectrum of silicon nanoparticles with two different diameters, 4.1 nm and 10.3 nm. The equations of state of Suzuki and Birch–Murnaghan were used to evaluate the volume compression ratio. It was found that the high pressure effects depend significantly on the particle size that was under consideration. The 4.1nm particle

Impact of Refuge to the Heterogeneous Interaction of Species in Food Chain Model: A Holistic Approach Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Shilpa Samaddar, Mausumi Dhar, Paritosh BhattacharyaThis paper deals with the dynamics of a prey dependent three species food chain model involving the Holling type II response function elucidating the impact of refuge constants of prey and predator on the system. We present an exhaustive mathematical explanation of the suggested model to enhance the significance which has originated due to ecological phenomena. Biologically meaningful equilibrium points

Existence of Solution for Infinite System of Nonlinear Singular Integral Equations and SemiAnalytic Method to Solve it Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Bipan Hazarika, Mohsen Rabbani, Ravi P. Agarwal, Anupam Das, Reza ArabIn this article, solvability of infinite system of nonlinear singular integral equations of two variables in Banach sequence spaces \(c_{0}\) and \(\ell _{1}\) is investigated. For this purpose, Hausdorff measure of noncompactness (in short, Hausdorff MNC) and Meir–Keeler condensing operators are employed. The guarantee of our results are given by some examples. Also to approach an approximation of

Recombinant Human SCARB2 Expressed in Escherichia coli and its Potential in Enterovirus 71 Blockage Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
HaiVy VoNguyen, ThanhTan Nguyen, HuyenTrang Thi Vu, ThanhThao Thi Nguyen, QuocCuong Hoang, Thuoc Linh Tran, Hieu TranVanHand, foot and mouth disease is a common viral infectious disease caused by enteroviruses, including coxsackie A16 (CVA16) and enterovirus 71 (EV71). HFMD can cause severe symptoms in children which can be fatal. Human scavenger receptor class B member 2 (SCARB2) is a cellular receptor for EV71 and CVA16, providing a potential approach for preventing EV71 infection and transmission. In this present

Characterization of Some Algerian Honeys Belonging to Different Botanical Origins Based on their Physicochemical Properties Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20210105
Chahra Makhloufi, Leila Ait Abderrahim, Khaled TaibiFor hundreds of years, people have used honey, and still are using it, as a natural sweetener and for its multiple health benefits. The quality of honey may be altered by several factors among which processing, storage conditions and falsification. The present study focusses mainly on the characterization of the physicochemical properties of nineteen Algerian honeys belonging to different localities

Numerical Solutions of Multiorder Fractional Antiperiodic Boundary Value Problems Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20200928
HuiChol Choi, KumSong Jong, KyongSon Jon, YongSim SinIn this paper, we propose the numerical scheme for solving nonlinear higher multiorder Caputo fractional differential equations with integral and antiperiodic boundary conditions, establish the existence of an approximate solution to our problem, and prove the convergence of our numerical method. The operational matrix of fractional integration based on hat functions is used to solve the given problem

Finite Difference and Spline Approximation for Solving Fractional Stochastic AdvectionDiffusion Equation Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201127
Farshid Mirzaee, Khosro Sayevand, Shadi Rezaei, Nasrin SamadyarThis paper is concerned with numerical solution of time fractional stochastic advectiondiffusion type equation where the first order derivative is substituted by a Caputo fractional derivative of order \(\alpha \) (\(0 <\alpha \le 1\)). This type of equations due to randomness can rarely be solved, exactly. In this paper, a new approach based on finite difference method and spline approximation is

Mixture Modeling Using the Multivariate Restricted SkewNormal Scale Mixture of Birnbaum–Saunders Distributions Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201127
Hossaein Samary, Zahra Khodadadi, Hedieh JafarpourMixture models are promising statistical tools aiming to modeling and clustering data arisen from a heterogeneous population. This paper presents a mixture model based on the assumption that the mixing components follow the multivariate restricted skewnormal scale mixture of Birnbaum–Saunders (SNBS) distributions. A computationally feasible expectationmaximization algorithm is developed to carry

Risk Assessment of Natural Radionuclide Contamination in Lead–Zinc Sulfide Ores Mining Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201126
Mansoureh Tatari, Reza Pourimani, Sahar Mandegari Meimandi, Mohamad Reza Samadzadeh Yazdi, Hadi LookzadehLead and zinc ores are the most important natural raw materials widely used in the industry. These types of ores contain different amounts of radionuclides that expose workers to radiation during extraction, transport, and processing. In this study, 22 samples were collected, including 18 samples of lead–zinc ore and 4 samples of mining waste. Specific activities of 226Ra, 232Th, and 40K were determined

Anticancer Effects of AKBA on Glioblastoma Cancer Cells Through Modulating TWIST1 and FOXM1 Expression Levels Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201124
Laleh Ranjbaran, Raheleh Masoudi, Seyedeh Leila AbtahiBackground Glioblastoma multiforme (GBM) is a highly aggressive and poor prognosis brain tumor with about 12 to 18month median survival period and high mortality rate in human. Glioma cells are able to disseminate and migrate far away from the primary tumor and display treatment resistance. Therefore, upgrading our knowledge regarding the genetic aspects of GBM and also applying a safe and promising

Genotypes Identification in Iranian Morus alba L. Populations Using Intersimple Sequence Repeat Markers Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201123
Mehry Askari, Seyed Mehdi Talebi, Alex MatsyuraMorus alba L. (Mulberry) is an economic and medicinal tree, originated from the Himalaya region and gradually spread all over the world. Most of the recently developed mulberry varieties have similar narrow genetic base and limited capacity against environmental stress and pathogens. To enhance the species resistance, we need to increase genetic diversity of its varieties using higher genotypes differentiation

In Vitro Antidiabetic Activity of Free Amino Acid and Protein Amino Acid Extracts from Four Iranian Medicinal Plants Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201123
Roghayeh Siahbalaei, Gholamreza KavoosiType 2 diabetes mellitus is a chronic metabolic disorder which is mainly correlated to hyperglycemia, hyperlipidemia, oxidative stress, and protein glycation. Bioactive compounds from herbal resources suggest a dietary approach for diabetes management by inhibiting carbohydratedegrading enzymes and biomolecules oxidation. The antidiabetic activities and amino acids composition of four medicinal plants

Regulatory Mechanism of Rosemary Extract ( Rosmarinus officinalis ) on Human Skin Fibroblasts During Ultraviolet A Photoaging Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201123
Feng Mao, Zhongxiao Wu, Yanna Shen, Yougang Ren, Mouzhe Yang, Xiaoli Li, Li ZhangIn this study, human skin fibroblasts human dermis fibroblasts were used as the object, the possible effects and mechanisms of rosemary extract on repeated exposure to Ultraviolet A (UVA) induced senescence of human skin fibroblasts were investigated. During the research, we mainly carried out through two parts. The first part mainly explores the effect of repeated UVA radiation on human skin fibroblasts;

Kinetics Study of Dye Decolorization by Oxidation in Aqueous and Aqueous Alcohol Medium Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201122
Maria Ashfaq, Rehana Saeed, Zahida Khalid, Afshan IrfanThe kinetics of oxidation of methylene blue with potassium bromate was investigated by observing decolorization of methylene blue in aqueous, aqueous methanol and aqueous isopropanol solvent system. The rate of reaction was studied as function of concentrations of methylene blue and potassium bromate in acidic medium at temperature 303 and 313 K. The increase in concentration of potassium bromate enhances

Trees with No Locating Roman Domination Critical Vertices Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201121
Hadi Rahbani, Ali Taherifar, Nader Jafari RadA Roman dominating function (or just RDF) on a graph \(G =(V, E)\) is a function \(f: V \longrightarrow \{0, 1, 2\}\) satisfying the condition that every vertex u for which \(f(u) = 0\) is adjacent to at least one vertex v for which \(f(v) = 2\). The weight of an RDF f is the value \(f(V(G))=\sum _{u \in V(G)}f(u)\). An RDF f can be represented as \(f=(V_0,V_1,V_2)\), where \(V_i=\{v\in V:f(v)=i\}\)

Comparative Evaluation of Cytotoxicity and Phytochemical Composition of Centaurea iconiensis ( Rhaponticoides iconiensis) Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201120
Osman Tugay, Leyla Paşayeva, Eren Demirpolat, Mustafa ŞahinCancer is a disorder that results in abnormal and irregular proliferation of cells in the organ or tissue of the body. In Turkey flora, there are many medicinal plants that have great therapeutic importance. Rhaponticoides iconiensis is endemic to Turkey. In the present study, the methanol extracts and subextracts of leafy stem and flowers of R. iconiensis were evaluated for cytotoxic activity against

Immobilization of Horseradish Peroxidase on Modified Cellulose Carriers via Hydrophobic Interactions: Catalytic Properties and Stability Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201116
Sasa Savic, Sanja Petrovic, Sanela Savic, Zivomir PetronijevicCellulose is one of the most common biopolymers on earth with wellknown nontoxic, biocompatible, and environmentally friendly properties. Structural and chemical properties of cellulose fibers give additional opportunities for surface modification of cellulose and its use as a carrier for immobilization of various bioactive compounds, including enzymes. For the proposes of horseradish peroxidase

Dynamical Behaviour of an Infected PredatorPrey Model with Fear Effect Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201116
Dipesh Barman, Jyotirmoy Roy, Shariful AlamIn this article, we have presented an infected predatorprey model with Holling type II functional response where the predator population is divided into two subclasses, namely susceptible and infected due to disease. Here, we have assumed that the fear induced by susceptible and infected predators are of different levels. Wellposedness of the model system along with persistence criterion and the

New Directional Residuals to Treat Shape Changes Using Spherical Regression Models Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201116
Meisam Moghimbeygi, Mousa GolalizadehOne of the important problems in the statistical shape analysis context is to predict the shape change. Rather than taking the change in terms of time, we confine ourselves to the deformation of the objects represented by a regressiontype model. We properly combine the shape definition in terms of the Kendall and Bookstein shape coordinate systems to break down the problem on the sphere. This is achieved

Characteristics of HighAlComposed Quantum Structure Under Strain Effects Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201116
Salih SaygıA heterojunction field effect transistor has been studied by a model run selfconsistently from the solution of the Schrödinger equation coupled with Poisson equation. The properties of the device drain current, the band structure of device, and the charge distribution have been obtained because of material composition. The efforts have shown that unique reason of having the high carrier concentration

Approximation Properties by Szász–Mirakjan Operators to Bivariate Functions via Dunkl Analogue Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201111
Md. NasiruzzamanIn this paper, we propose an efficient method to approximate bivariate functions by Szász–Mirakjan operators via Dunkl generalization. More precisely, we generalize the Dunkl formation of Szász–Mirakjan operators by introducing the exponential functions and obtain the approximation by means of wellknown Korovkin’s theorem, modulus of continuity, Lipschitz functions and Peetre’s Kfunctional. Next

Trichome Structures and Characterization of Essential Oil Constituents in Iranian populations of Salvia limbata C.A. Meyer Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201110
Seyed Mehdi Talebi, Sholeh Behzadpour, Pariya Yadegari, Mansour GhorbanpourSalvia limbata C.A. Meyer (Lamiaceae) is an aromatic medicinal herb growing wild in various parts of Iran. In the current study, variations in the trichomes morphology and density, and composition of the hydrodistilled obtained essential oils of eight wild S. limbata populations were assessed. Essential oil yield showed a high degree of variability among the populations. The major constituents of

Performance of Some New Ridge Parameters in TwoParameter Ridge Regression Model Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201109
Seyab Yasin, Shahid Kamal, Muhammad SuhailTwoparameter ridge regression is a widely used method in the last two decades to circumvent the problem of multicollinearity. Ridge parameter k plays an important role in such situations. Several methods are available in the literature for the estimation of ridge parameter. For high multicollinearity, the available methods do not perform well in terms of mean square error. In this article, we propose

Modulated Composite Nanofibers with Enhanced Structural Stability for Promotion of Hard Tissue Healing Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201106
Mehdi SadatShojai, Hassanali Moghaddas 
Experimental and Computational Investigation for (E)2hydroxy5(2benzylidene) Aminobenzoic Acid Schiff Base as a Corrosion Inhibitor for Copper in Acidic Media Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201104
Güray Kılınççeker, Mahmut Baş, Farhad Zarifi, Koray SayınThe corrosion behavior of copper in 1 M HCl in the absence and presence of Hha ((E)2hydroxy5(2benzylidene) aminobenzoic acid) has been investigated experimentally and computationally. In this way, the electrochemical behavior of copper was studied in 1 M HCl and 1 M HCl + x M Hha solutions under different temperatures. Electrochemical techniques were used. In addition to the laboratory methods

Development and In Vitro Evaluation of Polymeric Responsive Release Matrix Type Transdermal Patches of Two Antiasthmatic Drugs Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201102
Muhammad Yousuf, Mahmood Ahmad, Muhammad Naeem, Muhammad Khalid Khan, Barkat Ali KhanKetotifen fumarate, a mast cell stabilizer, and salbutamol sulfate, a bronchodilator, are frequently prescribed together for chronic asthma. This study aimed to combine both antiasthmatic drugs in single polymeric responsive matrix type transdermal patches. Drug release from polymeric device was optimized by varying ratios of hydrophilic (polyvinyl pyrrolidone) and hydrophobic (ethyl cellulose) polymers

Information Theoretic Study of the GroundLevel Ozone and Its Precursors Over Kolkata, India, During the Summer Monsoon Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201101
Goutami Chattopadhyay, Subrata Kumar Midya, Surajit ChattopadhyayThe present paper reports a study on the dependence of tropospheric ozone on some of its precursors, namely NOx, PM10, and SO2 during summer monsoon over a highly polluted Kolkata region megacity of India. The intrinsic multicollinearity has been explored through Bartlett’s sphericity test. Subsequently, principal component analysis has been implemented to identify the principal components with maximum

Mechanical and Thermal Behavior of Cu 84−x Al 13 Ni 3 Hf x Shape Memory Alloys Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201101
Ibrahim Nazem Qader, Ecem Öner, Mediha Kok, Safar Saeed Mohammed, Fethi Dağdelen, Muhammed Sait Kanca, Yildirim AydoğduThe physical characteristics of a shape memory alloy can be controlled by different production techniques and the rate of constituents’ contribution. In this study, CuAlNiHf shape memory alloys, with three different amounts of Hf, were produced by the induction melting method. Many measurements such as differential scanning calorimetry (DSC), scanning electron microscope, energy dispersive Xray, and

A Modified Descent Spectral Conjugate Gradient Method for Unconstrained Optimization Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201031
Saeed NezhadhoseinRecently, Peyghami et al. (Optim Meth Soft 43:1–28, 2015) proposed a modified secant equation, which applied a new updating Yabe and Takano’s rule as an adaptive version of the parameter of conjugate gradient. Here, using this modified secant equation, we propose a new modified descent spectral nonlinear conjugate gradient method. The proposed method includes two major features; the higherorder accuracy

On Topologized Fundamental Groups and Covering Groups of Topological Groups Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201031
Hamid TorabiWe show that every topological group is a strong small loop transfer space at the identity element. This implies that for a connected locally path connected topological group G, the universal path space \(\widetilde{G}_{e}\) equipped with the quotient topology induced by the compactopen topology on P(G, e) is a topological group. Moreover, we prove that there is a onetoone correspondence between

Analysis of Misalignment Effects on Hydrodynamic Noncircular Journal Bearings Using ThreeDimensional Lattice Boltzmann Method Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201030
Zoheir Saboohi, Shayan Roofeh, MohammadReza SalimiIn this paper, a numerical model for prediction of hydrodynamic noncircular journal bearings considering misalignments is proposed. The misalignment effects on noncircular hydrodynamical journal bearings are studied. For analyzing journal’s hydrodynamic film, the LBM method, instead of prevalent CFD methods, has been used; since the LBM method has local behavior, it is suitable for parallelization

A Quantitative Study of Natural Uranium Present in Groundwater of Tiruvannamalai District of India Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201030
Durai Ganesh, P. Eswaran, G. Senthilkumar, S. N. Bramha, S. Chandrasekaran, R. RavisankarUranium concentration in the groundwater samples from the district of Tiruvannamalai, Tamil Nadu, was measured using an LED fluorimeter. Grid sampling technique was used for the collection of water in the study area. The basic physical parameters of water such as EC, TDS and pH were also determined and their levels have been compared with standard limits. All the samples qualified as potable water

Physiological Responses of Cotton to Stress Moderator Application on Different Planting Date Under Saline Conditions Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201030
Masoumeh Shenavaei Zare, Mohammad Armin, Hamid MarviIncreased activities of enzymatic and nonenzymatic antioxidants provide a common reaction to environmental stress in most crops. To investigate the effect of foliar application of stress moderators on enzymatic and nonenzymatic antioxidant changes, field experiments were conducted as splitplot design based on a randomized complete block design with three replications in 2017 and 2018. Planting date

Screening of In Vitro Antibacterial Property of Hematite (αFe 2 O 3 ) Nanoparticles: A Green Approach Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201020
Prashanna Suvaitha Sundara Selvam, Sangeetha Govindan, Bhavani Perumal, Venkatachalam KandanThis study explores the fabrication of hematite (αFe2O3) nanoparticles utilizing aqueous extracts of Plectranthus amboinicus, which act as reducing and stabilizing agents. The prepared hematite (αFe2O3) nanoparticles have been characterized by TGA, PXRD, FTIR, Raman, DRS UV–visible, Photoluminescence, SEM, Particle size distribution, and zeta potential measurements (DLS), respectively. According

Positive weak solutions of a generalized supercritical Neumann problem Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201020
F. Safari, A. RazaniThe aim of this paper is to show that a supercritical Neumann problem has at least one positive radial solution via recent variational principle and defining an energy functional with a hidden symmetry associated with the problem. Also, we study the problem in the setting of the Heisenberg group \({\mathbb {H}}^n\), which is a special case of locally compact groups.

Augmented Subspaces in the LSQR Krylov Method Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201019
Zahra Asgari, Faezeh Toutounian, Esmail BabolianThe LSQR iterative method is a Krylov subspace method for solving leastsquares problems. Early termination is rare, and it is common for LSQR to require many iterations before an approximation of the solution with desired accuracy has been determined. In this paper, we present a restarted LSQR method and we use a new technique for accelerating the convergence of restated by adding some approximate

HabitatAssociated Morphological Divergence of Gasterosteus aculeatus in the Southern Caspian Sea Basin Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201019
Atta MouludiSaleh, Soheil EagderiHabitatassociated morphological divergence of the threespined stickleback, Gasterosteus aculeatus populations was investigated in the southern Caspian Sea basin using landmarkbased geometric morphometric method to understand the population structure of this invasive species. A total of 127 specimens were collected from three stations, including the Babol River estuary (center), Gomishan Wetland

TiO 2 nanoparticles effects on morphology and physiology of Artemisia absinthium L. under salinity stress Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201019
Shiva Shariatzadeh Bami, Ramazan Ali KhavariNejad, Ali Mohammad Ahadi, Zahra RezayatmandProviding strategies for coping and managing NaCl salinity stress is the goal of many researches. Titanium dioxide nanoparticles (TiO2 NPs) are widely used as photocatalytic agents due to their strong oxidative properties, optical stability, lack of toxicity, cheapness and availability. Here, the effects of various concentrations of NaCl salinity and titanium dioxide nanoparticles on certain growth

Synthesis and Microwave Dielectric Characterization of Ca 1x Sr x TiO 3 , LowLoss Ceramics Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Abid Zaman, Sarir Uddin, Nasir MehboobMicrowave dielectric ceramics in the Ca1xSrxTiO3 (0 ≤ x ≤ 0.7) composition series were fabricated via conventional solid state, mixed oxides route. The structural, microstructural and microwave dielectric properties of the sintered samples were investigated. The XRD patterns revealed the formation of a singlephase perovskitestructured compositions calcined at 1000 °C for 3 h in air. The structure

Simulation of Biomolecular Adsorption on a Microcantilever Biosensor Regarding Surface Charge Distribution Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Fouad Mollaei, Abolghasem Naghash, Peiman AliparastBackground Researches implement microcantilevers (MCs) as a biosensing technique lately. Various researches develop such platforms experimentally. Herein, simulation is the method of the choice to predict accurate response of the biosensor during design. Objective The current study aims to provide a prediction method that enables adequate response order. Such results enable the enhanced design of the

Stability Analysis of Quasivariable Grids Cubic Spline FourthOrder Compact Implicit Algorithms for Burger’s Type Parabolic PDEs Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Navnit Jha, Madhav WagleyIn the present paper, we describe cubic spline combined with high accuracy compact formulation for computing approximate solution values to nonlinear convectiondominated diffusion equations, and apply the method to several variants of Burger’s type parabolic partial differential equations. A combination of cubic spline interpolating polynomial and quasivariable grids sequence yields a twolevel implicit

A New Class of SalageanType Multivalent Harmonic Functions Defined by Subordination Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Serkan Çakmak, Sibel Yalçın, Şahsene AltınkayaUtilizing the concepts of subordination we have introduced a generalized class SalageanType of complexvalued multivalent harmonic functions. We construct some properties of our class. The results obtained here include a number of known and new results as their special cases.

Designing the Optimal Shape of a Nozzle by the Method of Fundamental Solutions Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Kamal RashediIn this paper, we propose a numerical technique based on the method of fundamental solutions (MFS) for solving a classical optimal shape design problem. The problem contains a free boundary condition which should be approximated to find the optimal domain for the solution of Laplace equation. For solving the considered optimization problem, we introduce a meshless regularization technique based on

Characterization of pH DependentCharged Structures of Valine and Aspartic Acid Through Their Partitioning into ImidazoliumBased Ionic Liquids Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201018
Leila SheikhianImidazoliumbased ionic liquids 1hexyl3methylimidazolium hexaflorophosphate, and 1hexyl3methylimidazolium tetrafloroborate were used to determine pH dependentionic forms of Valine and Aspartic acid in aqueous solutions. For this purpose, the partitioning behaviors of both compounds between the aqueous phase with different pH values and ionic liquid phase were investigated. The results revealed

Genetic Diversity of Brinjal Fruit and Shoot Borer (BSFB) Population of Odisha, India Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201017
Dattatreya Kar, Ananya Kuanar, Asit Ray, Mahendra Gaur, Bibhudutta Pattanaik, Budhadev MishraIn Southern and Southern East Asia, the eggplant fruit and shoot borer (BSFB) is the most harmful pest for eggplant. The pest is known to cause about 16 and 70% damage to shoots and fruits, respectively. It is of practical importance to precisely trace the genetic variability in the expanding geographical distribution of the pest. In the current study, the genetic variability was analysed among geographically

FirstOrder Optimality Conditions for Lipschitz Optimization Problems with Vanishing Constraints Iran. J. Sci. Technol. Trans. Sci. Pub Date : 20201017
Hadis Mokhtavayi, Aghileh Heydari, Nader KanziThis article deals with a class of nonsmooth mathematical programming with vanishing constraints. We introduce several kinds of constraint qualifications for these problems, and we study the relations between them. Then, we apply these constraint qualifications to obtain several stationary conditions. Finally, a sufficient condition for optimality of the problem is presented.