Phenomenological studies on molten core-concrete interactions

Many researches on double skin sandwich having top and bottom steel plates and in between concrete core called as steel-concrete-steel (SCS) were carried out by them on this SCS type using with different materials. Yet, use of coconut shell concrete (CSC) as a core material on this SCS form construction and their results are very limited. Study investigated to use j-hook shear studs under flexure in the concept of steel-concrete-steel (SCS) in which the core concrete was CSC. To compare the results of CSC, the conventional concrete (CC) was also considered. To study the effect of quarry dust (QD) in its place of river sand (RS) was also taken. Hence four different mixes two without QD and two with QD both in CC and CSC was considered. The problem statement is to examine about partial and fully composite, moment capacity, deflection and ductility properties of CSC used SCS form of construction. Core concrete strength and the j-hook shear studs used are influences the moment carrying capacity of the SCS beams. Use of QD in its place of RS enhances the strength of concrete produced. Deflections predicted theoretically were compared with experimental results. The SCS beams showed good ductility behavior.

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Imaging and Scattering Measurements for Diesel Spray Combustion: Optical Development and Phenomenological Studies

10.21236/ada574548 ◽

2012 ◽

Author(s):

Jason Porter ◽

Terry Parker ◽

Sean Duran

Keyword(s):

Diesel Spray ◽

Spray Combustion ◽

Phenomenological Studies ◽

Scattering Measurements

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Factorization of e+e− → H X cross section, differential in zh, PT and thrust, in the 2-jet limit

Journal of High Energy Physics ◽

10.1007/jhep02(2021)076 ◽

2021 ◽

Vol 2021 (2) ◽

Author(s):

M. Boglione ◽

A. Simonelli

Keyword(s):

Transverse Momentum ◽

Cross Section ◽

Belle Collaboration ◽

Hadron Production ◽

Leading Order ◽

Transverse Momentum Dependent ◽

Factorization Scheme ◽

Phenomenological Studies ◽

Cross Section Differential ◽

Perturbative Part

Abstract Factorizing the cross section for single hadron production in e+e− annihilations is a highly non trivial task when the transverse momentum of the outgoing hadron with respect to the thrust axis is taken into account. We work in a scheme that allows to factorize the e+e−→ H X cross section as a convolution of a calculable hard coefficient and a Transverse Momentum Dependent (TMD) fragmentation function. The result, differential in zh, PT and thrust, will be given to all orders in perturbation theory and explicitly computed to Next to Leading Order (NLO) and Next to Leading Log (NLL) accuracy. The predictions obtained from our computation, applying the simplest and most natural ansatz to model the non-perturbative part of the TMD, are in exceptional agreement with the experimental measurements of the BELLE Collaboration. The factorization scheme we propose relates the TMD parton densities defined in 1-hadron and 2-hadron processes, restoring the possi- bility to perform global phenomenological studies of TMD physics including experimental data from semi-inclusive deep inelastic scattering, Drell-Yan processes, e+e−→ H1H2X and e+e−→ H X annihilations.

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The Finite Element Analysis on the Local Compression of the Concrete Filled Steel Tubular Column-Beam Joint

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.368-373.489 ◽

2011 ◽

Vol 368-373 ◽

pp. 489-494 ◽

Cited By ~ 1

Author(s):

Xu Lin Tang ◽

Jian Cai ◽

Qing Jun Chen ◽

An He ◽

Chun Yang

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Compressive Stress ◽

Element Analysis ◽

Joint Zone ◽

The Core ◽

Principal Compressive Stress ◽

The Finite Element Analysis ◽

Side Face ◽

Core Concrete

In order to study the mechanical behavior of the joint between concrete filled steel tubular column and beam with discontinuous column tube at the joint zone under axial pressure, the finite element analysis software ANSYS is adopted for parametric analysis and the analysis results are compared with experimental ones. The principal compressive stress is mainly transmitted by the inside area of the joint which is subjected to local compression if it is low, but extends to more outside areas of the joint if it is high. The radial compressive stress, which is the confined stress of the ring beam to the core concrete of the joint, keeps the same as that the width of the ring beam equal to the diameter of the core area of the joint. The vertical strain on the edge of the joint, which would lead to horizontal annular cracks in the side face of the ring beam, changes from tension in the whole height to tension only in the top part and compression in the lower part of the joint, which is consistent with the experimental phenomenon.

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Teachers’ Lived Experiences about Teaching-Learning Process in Multi-Grade Classes

Journal of Education and Learning ◽

10.5539/jel.v6n4p354 ◽

2017 ◽

Vol 6 (4) ◽

pp. 354 ◽

Cited By ~ 1

Author(s):

Seyyed Heshmatollah Mortazavizadeh ◽

Mohammad Reza Nili ◽

Ahmad Reza Nasr Isfahani ◽

Mohammad Hassani

Keyword(s):

Learning Process ◽

Teaching Methods ◽

Lived Experiences ◽

Local Community ◽

Sampling Technique ◽

Learning Activities ◽

Learning Materials ◽

Statistical Population ◽

Phenomenological Studies ◽

Teaching Learning

This study seeks to recognize teachers’ lived experiences about teaching-learning process in multi-grade classes. The approach of the study is qualitative under the rubric of phenomenological studies. The statistical population consisted of the teachers of multi-grade classes in a non-prosperous province and a prosperous one. 14 teachers were selected using criterion sampling technique for an interview. The interviews were recorded and transcribed with the interviewees’ permission; and they were analyzed using Creswell data analysis. In order to evaluate the validity of the questions, the viewpoints of experts in the field of educational sciences as well as some teachers experienced in multi-grade classes were taken into account. The reliability was approved through examination by the participants and asking from counterparts. The results showed that teachers of multi-grade classes in both provinces had similar views on using teaching methods, determining learning activities and grouping methods. However, they did not have the same views on determining the type of learning materials and resources. The results show that in multi-grade classes various teaching methods such as peer teaching and integrated teaching, leading resources and materials such as the local community, nature, and discarded materials and objects, different grouping methods such as adjacent grouping, row grouping, and sex grouping, and finally various learning activities including self learning and peer learning are utilized. Multi-grade teachers in the two provinces have similar viewpoints regarding teaching methods, learning activities, and grouping methods, but are of different viewpoints on kinds of learning materials and resources.

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Strength Assessments of Concrete-Filled Steel Tubular Support of Soft Rock Roadway

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.838-841.1884 ◽

2013 ◽

Vol 838-841 ◽

pp. 1884-1890 ◽

Cited By ~ 1

Author(s):

Guang Long Qu ◽

Yan Fa Gao ◽

Liu Yang ◽

Bin Jing Xu ◽

Guo Lei Liu ◽

...

Keyword(s):

Bearing Capacity ◽

Coal Mine ◽

Soft Rock ◽

Surrounding Rock ◽

Flexural Performance ◽

Laboratory Test Results ◽

Different Types ◽

Soft Rock Roadway ◽

Core Concrete ◽

Rock Roadway

Compared with I-shaped and U-shaped supports in soft rock roadway, concrete-filled steel tubular (CFST) support, as a new supporting form, has stronger bearing capacity with reasonable price. So it is becoming more and more popular in roadway supporting of coal mine in China. In this article, the surrounding rock in soft rock roadway was classified into three different types: hard rock in deep coal mine, soft surrounding rock, extremely soft surrounding rock. And, according to the characteristics of deformation failure of the CFST support and the surrounding rock in the industrial tests, three different strength assessments, including assessment of axial compressive strength, assessment of lateral flexural performance, assessment of hardening rate of core concrete, were proposed through mechanical analysis and laboratory tests for the three different types of the surrounding rock, respectively. Moreover, aimed to insufficient flexural strength of the support or low hardening rate of the core concrete in some of the roadway supporting, strengthening lateral flexural performance or making early strength concrete was necessary for the above unfavorable situations. The laboratory test results showed that the ultimate bearing capacity for the CFST support with φ194*8mm of steel tube reinforced by φ38mm round steel was 31% greater than that of the unreinforced one, 177% greater than that of the U-shaped one with equivalent weight per unit length.

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Allowing one's own bodily experience to "count": Elaborating on inter- subjectivity and subjectivity in phenomenological studies

Journal of Education and Research ◽

10.3126/jer.v3i0.7850 ◽

2013 ◽

Vol 3 ◽

pp. 24-40 ◽

Cited By ~ 1

Author(s):

Karen Synne Groven ◽

Gunn Engelsrud

Keyword(s):

Research Process ◽

Human Beings ◽

Bodily Experience ◽

Phenomenological Studies ◽

Bodily Experiences ◽

The World ◽

Personal Reflections

Phenomenology, according to Heidegger and Merleau-Ponty, looks at human beings in the world. Drawing on their perspective, one could argue that inter-subjectivity, like a researcher’s subjectivity, should be explicitly acknowledged in phenomenological studies. In the following pages we explore how using this approach can make findings more transparent and trustworthy. This study is based on a review of five articles focused on subjectivity and inter-subjectivity in phenomenological studies. In addition, we draw on the first author’s experiences as a PhD candidate studying to become a “phenomenological” researcher. Our findings reveal that reflecting explicitly on bodily subjectivity during the research process can reveal connections between the context of the interview, how the material is created socially and textually and how the researcher utilized information from her own body in the interpretation of the material. This, in turn, is likely to make the findings more inter-subjective and transparent, and thus more trustworthy and valid. Our findings point to the value of letting one’s own bodily experiences “count” in the process of determining how to explore the phenomena in question. Although the literature offers guidelines, each project and each researcher is unique. In this light, personal reflections are likely to highlight the value of critically engaging – and making explicit – the researcher’s own experiences, both during and after the interview process.DOI: http://dx.doi.org/10.3126/jer.v3i0.7850Journal of Education and Research March 2013, Vol. 3, No. 1, pp. 24-40

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Amalgamation as a Strengthening Ethic

MIMBAR Jurnal Sosial dan Pembangunan ◽

10.29313/mimbar.v35i2.4863 ◽

2019 ◽

Vol 35 (2) ◽

pp. 334-341

Author(s):

Joshua Fernando ◽

Meta Sya ◽

Rustono Farady Marta

Keyword(s):

Social Identity ◽

Social Identity Theory ◽

Ethnic Diversity ◽

Social Identities ◽

Primary Group ◽

Exploratory Research ◽

The West ◽

West Kalimantan ◽

Mixed Marriages ◽

Phenomenological Studies

Mixed Marriage or Amalgamation is a unique reality in the development of culture in Indonesia. In the midst of ethnic diversity in Indonesia, it is possible for amalgamation to occur, so that understanding one another is a condition for harmony. This study aims to discover how individuals' social identities are formed in the primary group, that is in families who do amalgamation and how are individuals' social identity in amalgamation pairs. This study uses a qualitative exploratory research method with phenomenological studies from the perspective of Tajfel & Turner's Social Identity theory. The results of this study are the symbols of Tong Ngin Fan Ngin Jit Jong in Bangka community as the principle of inter-ethnic equality of the individual's social identity in mixed marriages, while the act of losing personal identity as a member of one ethnic group (depersonalization) is occurred in the West Kalimantan due to conflict background ethnicity past.

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A Legal Evaluation of the Legislation Regarding Scientific Research and Publishing Ethics Committees in the Fields of Social and Humanatirian Sciences and Educational Sciences in Universities: A Qualitative Research

Journal of Higher Education and Science ◽

10.5961/jhes.2021.447 ◽

2021 ◽

Vol 11 (2) ◽

pp. 270-280

Author(s):

murat bülbül

Keyword(s):

Higher Education ◽

Scientific Research ◽

Ethics Committees ◽

State Universities ◽

Publication Ethics ◽

Higher Education Law ◽

Phenomenological Studies ◽

Educational Sciences ◽

Publishing Ethics ◽

Document Review

In Article 65 of Higher Education Law numbered 2547, formation, duties and operations of scientific research and publication ethics boards have to be regulated by regulations issued by Higher Education Council (HEC). Despite this legal obligation, ethical committees in higher education institutions are not regulated by regulation; They are regulated by HEC Scientific Research and Publication Ethics Directive (HECSRPED) issued in 2016. Universities also make regulations regarding these boards within their own bodies with directives issued by decisions of their senates. In the research, firstly, the literature on the ethics committees and relevant legislation are examined. Then, categories are determined by using the document review method, considering regulations of ethics committees in HECSRPED; in the context of these categories, directives issued by 3 state universities in İstanbul regarding ethics committees in fields of social and humanities and educational sciences are analyzed. Findings show that provisions of a directive issued by universities on ethics committees generally do not coincide with relevant provisions in HECSRPED and even contain significant contradictions. It has also been discussed that ethical committees in universities may harm the principle of conducting scientific research freely and cause important bureaucratic problems and workload for both researchers and board members. It has been suggested that issues related to ethical committees are regulated by HEC, eliminating illegality in directives issued by universities and that universities can issue directives on issues that are not clarified in HECSRPED. In addition, it was recommended to conduct case studies and phenomenological studies regarding ethics committees for researchers.

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