Some Cultural and Linguistic Issues in the Standardisation of Tamazight in Algeria

Aitsislemi, Farid 대한언어학회 2001 언어학 Vol.9 No.1

Aitsiselmi Farid. 2001. So., cultural and linguistic issues in the standardization of Tam azight in Algeria. The Linguistic Association of Korea Journal 9(1). 73-94. The aim of this article is to examine the sociolinguistic situation in Algeria with special reference to Tamazight, the indigenous language spoken in North Africa and to review the factors which led to the decision to use the Roman alphabet to transcribe Tamazight. Tamazight has yet to be recognised as national language by the Algerian constitution but a number of events in the recent history of the country have resulted in s official recognition of the language and the setting up of institutions in some of the promotion of Tamazight with a view to introducing it as a medium of education at least in the stem where it is used as a mother tongue. Tamazight being a spoken language its introduction the educational system requires process of standardization the first step of which is its codification and the selection of alphabet to transcribe it. The article e cultural and linguistic issues which have to be taken into consideration min the choice of a system to transcribe a language with no previous written tradition, and to explore the problems raised by its transcription once an alphabet has been chosen (The University of Bradford)

On a New Index for Research Assessment

Farid, Farid O. Korea Institute of Science and Technology Informat 2021 Journal of Information Science Theory and Practice Vol.9 No.3

We introduce a new research assessment measure, called the research excellence index. The measure, which we denote by RE-index, accurately assesses the research performance of a researcher. The methodology used in deriving the RE-index tackles many of the flaws of popular research performance indicators such as publication counts, citation counts, and the h and g indices. A dataset is introduced, which takes advantage of the wide coverage of Scopus and the Library of Congress, and, at the same time, deals with the Scopus database depth problem. For an academic publication x, a prestige-type and length scores are assigned, and if x is published in an academic periodical publication J, the stature of J is identified through a quartile score. The three scores are used to assign a value score to every academic publication, and cited academic publications are given citation scores that encompass both cases of including and excluding self-citations. The foregoing scores are used to derive another set of scores measuring the combined qualitative and quantitative aspects of the creative work, citations of creative work, informative work and citations of informative work of a researcher. The scores take into consideration co-authorship. From these scores, two versions of the RE-index for a researcher are derived, covering the cases of including and excluding self-citations. The new measure is calculated for two mathematicians.

Competition between H₂O and CO₂ for active sites during co-gasification of bituminous coal and pineapple sawdust in an atmosphere containing H₂O, CO₂, H₂, and CO

Massoudi Farid, Massoud,Hwang, Jungho Elsevier Ltd 2017 Fuel Vol.207 No.-

<P><B>Abstract</B></P> <P>The competition between the H<SUB>2</SUB>O and CO<SUB>2</SUB> for the active sites during gasification remains a controversial issue in the literature. In this study, the competition between the H<SUB>2</SUB>O and CO<SUB>2</SUB> for the active sites during gasification of coal, biomass, and a mixture of coal and biomass using the Langmuir–Hinshelwood (L–H) kinetic parameters obtained in our previous two papers (Massoudi Farid et al., 2016, 2017) was investigated. It was found that the char–H<SUB>2</SUB>O and char–CO<SUB>2</SUB> reactions occurred on separate active sites for all samples. For a constant CO<SUB>2</SUB> concentration, increasing the H<SUB>2</SUB>O concentration caused an increase in the kinetic coefficient. The extent to which the kinetic coefficient increased became less pronounced as the amount of biomass in the co-gasified mixture increased. For a constant H<SUB>2</SUB>O concentration, increasing the CO<SUB>2</SUB> concentration also increased the kinetic coefficient; however, the extent to which the kinetic coefficient increased was greater when the amount of biomass was higher. Additional experiments were conducted to study the effect of the co-existence of H<SUB>2</SUB> and CO on the competition between the char–H<SUB>2</SUB>O and char–CO<SUB>2</SUB> reactions for the active sites. It was found that the char–H<SUB>2</SUB>O and char–CO<SUB>2</SUB> reactions also occurred on separate active sites, even in the presence of both H<SUB>2</SUB> and CO.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Coal–biomass blended char was gasified in a mixture of CO<SUB>2</SUB>, H<SUB>2</SUB>O, H<SUB>2</SUB>, and CO. </LI> <LI> Char–H<SUB>2</SUB>O and char–CO<SUB>2</SUB> reactions occurred on separate active sites. </LI> <LI> H<SUB>2</SUB> and CO had no effect on participation of active sites in the gasification. </LI> </UL> </P>

Validity of Self-reported Hypertension and Factors Related to Discordance Between Self-reported and Objectively Measured Hypertension: Evidence From a Cohort Study in Iran

Farid Najafi,Yahya Pasdar,Ebrahim Shakiba,Behrooz Hamzeh,Mitra Darbandi,Mehdi Moradinazar,Jafar Navabi,Bita Anvari,Mohammad Reza Saidi,Shahrzad Bazargan-Hejazi 대한예방의학회 2019 Journal of Preventive Medicine and Public Health Vol.52 No.2

Objectives: Self-reporting can be used to determine the incidence and prevalence of hypertension (HTN). The present study was conducted to determine the validity of self-reported HTN and to identify factors affecting discordance between self-reported and objectively measured HTN in participants in the Ravansar Non-Communicable Diseases (RaNCD) cohort. Methods: The RaNCD cohort included permanent residents of Ravansar, Iran aged 35-65 years. Self-reported data were collected before clinical examinations were conducted by well-trained staff members. The gold standard for HTN was anti-hypertensive medication use and blood pressure measurements. The sensitivity, specificity, positive and negative predictive values, and overall accuracy of self-reporting were calculated. Univariate and multivariate logistic regression were used to examine the discordance between self-reported HTN and the gold standard. Results: Of the 10 065 participants in the RaNCD, 4755 (47.4%) were male. The prevalence of HTN was 16.8% based on self-reporting and 15.7% based on medical history and HTN measurements. Of the participants with HTN, 297 (18.8%) had no knowledge of their disease, and 313 (19.9%) had not properly controlled their HTN despite receiving treatment. The sensitivity, specificity, and kappa for self-reported HTN were 75.5%, 96.4%, and 73.4%, respectively. False positives became more likely with age, body mass index (BMI), low socioeconomic status, and female sex, whereas false negatives became more likely with age, BMI, high socioeconomic status, smoking, and urban residency. Conclusions: The sensitivity and specificity of self-reported HTN were acceptable, suggesting that this method can be used for public health initiatives in the absence of countrywide HTN control and detection programs.

Quick and Accurate Computation of Voltage Stability Margin

Farid Karbalaei,Shahriar Abasi 대한전기학회 2016 Journal of Electrical Engineering & Technology Vol.11 No.1

It is well known that the behavior of PV curves is similar to a quadratic function. This is used in some papers to approximate PV curves and calculate the maximum-loading point by minimum number of power flow runs. This paper also based on quadratic approximation of the PV curves is aimed at completing previous works so that the computational efforts are reduced and the accuracy is maintained. To do this, an iterative method based on a quadratic function with two constant coefficients, instead of the three ones, is used. This simplifies the calculation of the quadratic function. In each iteration, to prevent the calculations from diverging, the equations are solved on the assumption that voltage magnitude at a selected load bus is known and the loading factor is unknown instead. The voltage magnitude except in the first iteration is selected equal to the one at the nose point of the latest approximated PV curve. A method is presented to put the mentioned voltage in the first iteration as close as possible to the collapse point voltage. This reduces the number of iterations needed to determine the maximum-loading point. This method is tested on four IEEE test systems.

New techniques for wound management: A systematic review of their role in the management of chronic wounds

Farid Bekara,Julian Vitse,Sergiu Fluieraru,Raphael Masson,Antoine De Runz,Vera Georgescu,Guillaume Bressy,Jean Louis Labbé,Benoit Chaput,Christian Herlin 대한성형외과학회 2018 Archives of Plastic Surgery Vol.45 No.2

Debridement is a crucial component of wound management. Recent technologies such as hydrosurgery (Versajet), ultrasound therapy (the MIST therapy device), or plasma-mediated bipolar radio-frequency ablation therapy (Coblation) seem to represent interesting alternatives for wound debridement. The purpose of this systematic review was to describe, evaluate, and compare these three recently developed methods for the management of chronic wounds. In January 2016, an electronic database search was conducted of MEDLINE, PubMed Central, and Embase for articles concerning these three innovative methods for the management of chronic wounds. A total of 389 references were identified by our search strategy, and 15 articles were included. We extracted data regarding the number and age of patients, indications, operating time, number of procedures, costs, wound healing time, decrease in exudation, perioperative blood loss, bacterial load, and the occurrence of complications. The 15 articles included studies that involved 563 patients who underwent hydrosurgery (7 studies), ultrasound therapy (6 studies), or Coblation (2 studies). Six randomized controlled trials were included that compared the use of a scalpel or curette to hydrosurgery (2 studies) or ultrasound therapy (6 studies). Hydrosurgery, in addition to being a very precise and selective tool, allows significantly faster debridement. Ultrasound therapy provides a significant reduction of exudation, and improves the wound healing time. No comparative study dedicated to Coblation was identified. Despite the obvious clinical interest of the topic, our review of the current literature revealed a lack of prospective randomized studies comparing these devices with each other or with standard techniques, particularly for Coblation and hydrosurgery.

Free Convection in Vertical Porous Enclosures due to Opposing Fluxes of Heat and Solute at the Vertical Boundaries

Farid Alavyoon,Yoshio Masuda 대한기계학회 1993 International Symposium on Transport Phenomena in Vol.1 No.1

GENERALIZATION OF THE FEJÉR-HADAMARD'S INEQUALITY FOR CONVEX FUNCTION ON COORDINATES

Farid, Ghulam,Rehman, Atiq Ur Korean Mathematical Society 2016 대한수학회논문집 Vol.31 No.1

In this paper, we give generalization of the $Fej\acute{e}r$-Hadamard inequality by using definition of convex functions on n-coordinates. Results given in [8, 12] are particular cases of results given here.

Investigating the possibility of replacing IN 738LC gas turbine blades with IN 718

Farid Vakili-Tahami,Mohammad Reza Adibeig 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.10

The possibility of replacing IN 738LC gas turbine blades with IN 718 is investigated in terms of their creep behavior at different workingconditions. The latter superalloy is domestically produced and therefore there is a strong interest in using this alloy in manufacturinggas turbine blades. For this purpose, first the creep behavior and constitutive equation of IN 718 have been determined using experimentaldata. Test samples were machined from as-received bars and their physical and mechanical properties together with their creep behaviorwere examined. Constant load uni-axial creep tests were carried out at two constant temperatures of 660 and 675°C. Initial stressesrange from 490 to 690 MPa that are below the yield stress at each temperature level. The test results verify the quality of the domesticallyproduced superalloy and show that its characteristics match with the international standards. In addition, numerical optimization techniqueswere used to obtain creep constitutive parameters of the produced alloy based on the experimental data. Then, the creep behaviorof gas turbine blades, which operate at different rotating speeds, was investigated using finite element method. The results show thatsince the creep deformation of IN 718 is high, it can only be used in low and medium power gas turbines.

Analysis of the hydrodynamic torque effects on large size butterfly valves andcomparing results with AWWA C504 standard recommendations

Farid Vakili-Tahami,Mohammad Zehsaz,Mahdi Mohammadpour,Ali Vakili-Tahami 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.9

Butterfly valves are widely used in various industries such as water distribution, sewage, oil and gas plants. The hydrodynamic torque applied on the butterfly valve disk is one of the most important factors which should be considered in their design and application. Although several methods have been used to calculate the total torque on these valves, most of them are based on hydrostatic analysis and ignore the hydrodynamic effect which has a major role to determine the torque of the large-size valves. For finding the dynamic-valvetorque,some empirical formulas and methods have been proposed; for example in AWWA C504 standard, a relationship for calculating the dynamic torque has been given and its variation versus disk angle has been stated. However, the use of these empirical relationships is restricted due to the conditions defined in the standards. In this paper, the dynamic-valve-torque has been calculated for a large butterfly valve under different conditions and also at the different opening angles of the valve disk. For this purpose a computational fluid dynamics (CFD) method has been used. The results have been compared with those given in the AWWA C504 standard recommendations. Moreover, the effects of the disk shape and its deformation, surface roughness, upstream/downstream pressure variation and disk-offset value have been studied.