A comparison of postmethod pedagogy parameters and sociocultural theory premises

A comparison of postmethod pedagogy parameters and sociocultural theory premises

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Part of #A comparison of postmethod pedagogy parameters and sociocultural theory premises# :

Publishing year : 2015

Conference : National Conference on Language, Literature and Translation in Education

Number of pages : 9

Abstract: Being considered pedagogical innovations in the field of language learning and teaching, postmethod pedagogy and sociocultural theory have recently attracted the attentions of teachers, researchers, and experts in the field. Facing the limitations of the methods, Kumaravadivelu proposed the postmethod pedagogy in which he took account of particularity, practicality, and opportunity as backbones of postmethod pedagogy. On the other hand, Vygotsky's sociocultural theory focuses on contributions that the social-cultural environment makes to individual development. Being a psychological theory, it investigates the origins of mind and its development. This article is written in an attempt to compare the parameters of postmethod pedagogy with related premises of sociocultural theory to see the similarities and differences between the two paradigms. Based on the Findings, it seems that sociocultural theory proposes more rigorous premises for language learning compared to postmethod pedagogy since it considers dialectic relationships between micro and macro level structures in society, eliminates the gap between the theory and practice by introducing praxis and focuses Is the learners' agency in learning.

Sonication Effect on Physical Properties of Functionalized Multi-Walled Carbon Nanotubes

Sonication Effect on Physical Properties of Functionalized Multi-Walled Carbon Nanotubes

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Part of #Sonication Effect on Physical Properties of Functionalized Multi-Walled Carbon Nanotubes# :

Publishing year : 2009

Conference : Third Conference on Nanostructures

Number of pages : 3

Abstract: In this study, we fabricated functionalized multi-walled carbon nanotubes (MWNTs) by chemical protocol and then investigated the effect of sonication on morphology and also the physical properties of MWNTs. The resulting functionalized nanotubes were characterized by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, X-Ray Photoelectron Spectroscopy, Transmission Electron Microscopy and Electrochemistry measurements. It was found that the sonication can practically cut the functionalized MWNTs, which produce them with shortened nanotubes; This is an important parameter for application in an array biosensor. Considering that carbon nanotubes have remarkable physical and chemical properties, it can be applied to various nanometer-sized carbon nanotube devices, including carbon nanotube-based sensors for gases and a variety of bio (molecules).

Human Factors Analysis of Consumer Personal Protective Equipment

Human Factors Analysis of Consumer Personal Protective Equipment

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Part of #Human Factors Analysis of Consumer Personal Protective Equipment# :

Publishing year : 2008

Conference : The first international conference on safety, health and environment in organizations

Number of pages : 16

Abstract: Despite the movement of workers away from hard labor and into office environments, work injuries continue to be a problem for many businesses. Human factor engineering (HFE) is a study of the impact of workplace design and the workplace environment on people and includes those issues that affect the body's structure and functioning. The goal of HFE is to ensure the health, well-being and safety of people in their workplace while improving their productivity. There is still a need to implement test procedures that define task requirements in terms of psychomotor ability and physiological capacity, rather than limited aerobic power or muscle strength strengths. In part one of the paper, we are examining the current practices used to develop the job requirement requirements in the traditionally malediated occupations of firefighters, police officers and armed forces personnel, and task analysis. A case study of a local firefighting unit is presented in the context of the task
analysis. There is a variety of fire / emergency escape devices, commonly called "smoke hoods" or "smoke masks", marketed to help consumers in safe egress from fire emergencies. In part two we describe these products as respiratory emergency emergency escape devices
(RPEDs). Five RPEDs are selected for evaluation on the basis of availability (all available online) and price (covering a range of prices). We conduct a human factor analysis of these RPEDS. Then we present the results of the staff analysis, which included an assessment of fit, factors related to the filter, behavioral factors, instructions, warnings and general usability, and a donning test.

Investigation of effective parameters on critical speed of the rotating shaft

Investigation of effective parameters on critical speed of the rotating shaft

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Part of #Investigation of effective parameters on critical speed of the rotating shaft# :

Publishing year : 2013

Conference : National Conference on Mechanical Engineering of Iran

Number of pages : 11

Abstract: In various industrial applications there is a need for higher speed. Critical speed and resonance are phenomena that play a major role in many machines and systems. Particularly in the case of rotating shafts and rotors, impermissibly high oscillation amplitudes occur at certain speeds which may even result in the destruction of the machine under certain conditions. In this paper, we will investigate the vibrations of a whirling shaft. For this purpose, we consider a thin elastic shaft with a concentrated mass and we will obtain its critical speeds by analytical and experimental methods. We also investigate the effects of different lengths on shaft vibrations. Finally, we will do a comparison between experimental, analytical, finite element methods and a discussion conducted. Then by FEM, we will analyze the desired shaft system with the concept of the Campbell diagram

Active control of high rise building structures using fuzzy logic and linear quadratic regulator algorithms with(ATMD)damper

Active control of high rise building structures using fuzzy logic and linear quadratic regulator algorithms with(ATMD)damper

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Part of #Active control of high rise building structures using fuzzy logic and linear quadratic regulator algorithms with(ATMD)damper# :

Publishing year : 2012

Conference : Third National Conference on Earthquake and Structures

Number of pages : 10

Abstract: Active tuned mass damper (ATMD) control systems for civil engineering sb.uctures have attracted considerable attention in recent years. This paper emphasizes the application of a fuzzy logic (FLC) to a design control scheme for obtaining best results in reducing the building response underearthquake excitations. Therefore, the proposed method has the advantages of a fuzzy logic controller (FLC) to handle uncertain and non-linear phenomena. The building is modeled as a shear frame and the problem is solved in state space. The proposed method is applied to an 11-stosy realistic building. The results obtained from the proposed control scheme (FLC) are compared with those obtained from TMD and linear quadratic regulator (LQR) control methods. It is found that FLC is highly effective in reducing seismically excited benchmark building

THE STUDY OF PROPAGATE OF OPUNTIA VULGARIS WITH SEEDS

THE STUDY OF PROPAGATE OF OPUNTIA VULGARIS WITH SEEDS

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Part of #THE STUDY OF PROPAGATE OF OPUNTIA VULGARIS WITH SEEDS# :

Publishing year : 2011

Conference : National Conference on New Achievements in Agriculture

Number of pages : 4

Abstract: This article is about the methods of increasing the seeds of opuntia vulgaris. The investigations have shown that the seeds grow only in high humidity and temperature. Opuntia likes heat. Therefore, the temperature differens between the night and day must be 5 or 6 Celsius. Apuntian was a plant as a valuable food, medicine and texnical plant in the past. In the famous countries of the world, the different organ of this plant is used in medicine and in different aspects of national economics. So, It's used the juice of opuntia fruit, marmalade, jelley and olso it's used as a vegetable in foodstoof. (3-4) Anisimova. T notes in her book by the name of the cactaceases about the opuntian to germination from seed thurt in this way we can use the aquarum whitch to be put back. It's made a shelf from the glass in the aquarium in these shelfs, which are placed on the plates that has been sawed in the seed of the opuntian. It's a put day lamp on this aquarum. It's covered with polytel carpet the open side of the aquarem to get exaporations. To create a diffirence between the day and night, the lamp is swiped off. Semyanov.D he notes about propagating opuntia with seed.He says that this seed is covered with thick Carpet and to speed their germination we need to cut the seed cover. Urban A. Thorny miracle. In this book he speaks about the opuntian seed which is sawing in the plates. They are placed in special boxes.

Landfill leachate treatment using aerobic thermophilic treatment process

Landfill leachate treatment using aerobic thermophilic treatment process

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Part of #Landfill leachate treatment using aerobic thermophilic treatment process# :

Publishing year : 2009

Conference : First International Conference on Wastewater Recycling and Water Recycling, Technologies and New Discoveries

Number of pages : 10

Abstract: Biological aerobic treatment of landfill leachate under thermophilic conditions is a way to reduce the pollutant content of this concentrated wastewater. In this study, the treatmentability of landfill leachate using mesophilic and thermophilic activated sludge in terms of Total Solids (TS), Total Dissolved Solids (TDS), Total Suspended Solids (TSS) and Chemical Oxygen Demand (COD); was investigated by means of a continuous aerobic mixed activated sludge tubular bioreactor. The treatment period was 15 days at 40 C and 20 days at 55 C. These operations resulted in 44%, 33% and 32% COD reductions at organic loading rates of 10.14, 16.9 and 32.96 kg / (m3.d) respectively under mesophilic conditions (40C) and COD reduction of 54%, 49 %, 44% and 43% at organic loading rates of 5, 10.1, 17.37, and 32.96, respectively, under thermophilic conditions (55C). The values of kinetic parameters of Yield (YT), Decay rate constant (Kd), Maximum specific growth rate constant [Formula], and Monod equation rate constant (Ks) were found to be 0.31 kgMMLSS / kgCOD, 0.38 d-1, 3.11 d-1 and 1311 mgCOD / l respectively under mesophilic conditions (40C) and 0.24 kg of MLBS / kgCOD, 0.60 d-1, 6.51 d-1, and 1210 mgCOD / l respectively under thermophilic conditions (55C).

Investigation of Different Kernels of Support Vector Regression on Resilient Modulus of Treated Pavements

Investigation of Different Kernels of Support Vector Regression on Resilient Modulus of Treated Pavements

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Part of #Investigation of Different Kernels of Support Vector Regression on Resilient Modulus of Treated Pavements# :

Publishing year : 2014

Conference : The 2nd International Congress on Architecture, Urban Development and Architecture

Number of pages : 7

Abstract: The resilient modulus (MR) plays a significant role in pavement designing in accordance with the mechanistic-empirical method. Furthermore, since the use of different pavement stabilizers is generally established in road projects, acquiring the resilient modulus of treated pavement layers seems to be inevitable. However, due to the complexity, timeconsuming and equipment requirements for repeated load testing, several methods have been proposed to apply. In addition to the empirical formulas and multifarious regression models, the support vector regression (SVR) of the new artificial intelligence algorithm has been developed to evaluate the exact value of treated pavement layers (MR). In this paper, the comparison of the various kernel functions of the Support Vector Regression (SVR) has been stated. Eventually, due to the less sensitive data input distribution, high precision estimation, avoiding the black box and high adaptability to various data sets, the polynomial kernel of SVR is selected as the most appropriate prediction model (MR) value evaluation kernel.

Platform carbonates distribution in the Upper Visean-Bashkirian of Iran

Platform carbonates distribution in the Upper Visean-Bashkirian of Iran

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Part of #Platform carbonates distribution in the Upper Visean-Bashkirian of Iran# :

Publishing year : 2007

Conference : Twenty-sixth Earth Science Forum

Number of pages : 7

Abstract: In the Upper Visean-Serpukhovion marina sedimentation was limited to Central and East Iran and in the Bashkirian to the eastern part of Central Iran. The Visean-serpukhovian-Bashkirian includes the Sardar Formation. This Geological formation consists of the uppermost part of the Ozzbak-kuh Group. The sandy-shaly facies of the Sardar are rather unigue for the Carboniferous of Iran, which is commonly represented by carbonates. From the type section of Sardar I, have been reported Serpukhovian coral complex comprising Cyathaxonia, Fasciculophyllum, Plerophyllum, Soshkineophyllum and Michelinia. From the Sardar I in the range of the shooters are also reported the Upper Visean-Serpukhovian genera Ufimia, Plerophyllum, Cyathaxonia Caninia, Amplexus, Amplexocarninia, Pseudowannerophyllum, Minatoa. From the Sardar II have been reported Donetzites, Minatoa and Pseudowannerophyllum, and from the sardar II in Ozbak-Kuh Koninkophyllum, Minatoa, Amandophyllum, Palaeosmilia, Heritschioides, Paraheritschioides, Cleopatra, Opiphyllum, Fomichevella, Donetzites, Multithecopora. This complex is indicative of the Visean-Serpukhovian-Bashkirian. The Sardar II in the shirgesht area has yielded Claviphyllum in its lower part. In the Serpukhovian marine sedimentation was limited to Central and East Iran and in the Bashkirian to the eastern part of Central Iran.

Delaunay Partitions and Applications

Delaunay Partitions and Applications

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Part of #Delaunay Partitions and Applications# :

Publishing year : 2004

Conference : Third National Conference on Industrial Engineering

Number of pages : 13

Abstract: Using two theorems linking Delaunay Partition and Linear Programming, we develop a method for generating all simplices in a Delaunay Partition of a set of points and show how to solve a piecewise linear non-convex optimization problem. The same method is shown to enumerate all facets of a polytope given as a convex hull of a finite set of points. None of our algorithms are affected by degeneracy. Examples and computational
results are given.