scholarly journals INFLUENCE OF A NUMBER OF IMPACTS OF LOW-SPEED MIXER BLADES ON CONCRETE QUALITY BEING PREPARED

2019 ◽  
Vol 51 (3) ◽  
pp. 92-99
Author(s):  
M.V. Borisova ◽  
◽  
A.Yu. Titov ◽  
V.V. Novikov ◽  
V.V. Konovalov ◽  
...  
Keyword(s):  
Literature Review ◽  
Power Function ◽  
Mixing Process ◽  
Slow Speed ◽  
Horizontal Shaft ◽  
Concrete Quality ◽  
Blade Mixer ◽  
Working Bodies ◽  
Made In ◽  
State Agricultural Academy

The paper presents purpose equations describing the uneven mixing depending on the number of the mixer blade impacts per unit of concrete weight as well as the weight of the mixture that have an impact on blades of the slow-speed mixer. Based on the literature review and analysis of the mixing process conducted in the Samara State Agricultural Academy, the design of the blade mixer was developed. The mixer consists of a body where there is a horizontal shaft with working bodies, made in the form of radial blades of helical shape. There are received equations that allow determining the concrete uniformity depending on a number of the impacts of the mixer blades per unit of the concrete weight as well as on the concrete weight that act on the blades of the slow-speed mixer. The power function is adequately described by the experimental results of 98 % confidence probability. In the studied areas of changes in independent factors rational values of the number of impacts per unit of the concrete weight is not less than 800 PCs/kg, as well as the concrete weight having impact on the blade of the slow-speed mixer is not more than 0,001 kg/PC.

scholarly journals 3D IMAGING OF INDIVIDUAL PARTICLES: A REVIEW

2012 ◽  
Vol 31 (2) ◽  
pp. 65 ◽  
Author(s):  
Eric Pirard
Keyword(s):  
Literature Review ◽  
Digital Imaging ◽  
Systems Analysis ◽  
3D Imaging ◽  
Materials Science ◽  
Recent Literature ◽  
Three Dimensional ◽  
Shape Estimation ◽  
Individual Particles ◽  
Made In

In recent years, impressive progress has been made in digital imaging and in particular in three dimensional visualisation and analysis of objects. This paper reviews the most recent literature on three dimensional imaging with a special attention to particulate systems analysis. After an introduction recalling some important concepts in spatial sampling and digital imaging, the paper reviews a series of techniques with a clear distinction between the surfometric and volumetric principles. The literature review is as broad as possible covering materials science as well as biology while keeping an eye on emerging technologies in optics and physics. The paper should be of interest to any scientist trying to picture particles in 3D with the best possible resolution for accurate size and shape estimation. Though techniques are adequate for nanoscopic and microscopic particles, no special size limit has been considered while compiling the review.

scholarly journals Secularizing Effects of Christian Mission: Fifty Years After Elmer Miller’s “The Christian Missionary, Agent of Secularization”

2021 ◽  
Vol 38 (1) ◽  
pp. 59-76
Author(s):  
Maryse Kruithof
Keyword(s):  
Literature Review ◽  
Decisive Role ◽  
American Anthropologist ◽  
Christian Mission ◽  
Academic Literature ◽  
The Past ◽  
Primary Driver ◽  
Christian Missionary ◽  
Mission Field ◽  
Made In

Abstract It has been suggested that Christianity is inextricably linked with secularization due to its emphasis on purification and rationalization. But if we believe secularization in Europe is at least partly caused by internal developments within Christianity, may we then assume that secularization emerges wherever Christian missionaries are successful? Has the Christian mission unwittingly instigated secularization in its mission fields? This literature review analyses the argument that American anthropologist Elmer Miller made in the article “The Christian Missionary, Agent of Secularization” (1970) and explores whether his thesis has been confirmed in academic literature during the past fifty years. Miller presents rationalization as the primary driver of secularization and explains how missionaries have played a decisive role in this process. This paper demonstrates that while rationalization has often been mentioned as an effect of the Christian mission in other sources, the process has rarely been linked to secularization in the mission field.

scholarly journals Primary Lymphangioma of the Palatine Tonsil in a 9-Year-Old Boy: A Case Presentation and Literature Review

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Eleftheria Iliadou ◽  
Nektarios Papapetropoulos ◽  
Eleftherios Karamatzanis ◽  
Panagiotis Saravakos ◽  
Konstantinos Saravakos
Keyword(s):  
Literature Review ◽  
Histological Examination ◽  
Current Literature ◽  
Short Review ◽  
Clinical Suspicion ◽  
Palatine Tonsil ◽  
Benign Lesions ◽  
Case Presentation ◽  
The Right ◽  
Made In

Primary lymphangiomas or lymphangiomatous polyps of the palatine tonsil are rare benign lesions that are described infrequently in the literature. The majority of the published cases concern adults. We report a case of a lymphangiomatous lesion of the right palatine tonsil of a 9-year-old boy. Our clinical suspicion was confirmed by the histological examination after tonsillectomy and the diagnosis of primary lymphangioma of the tonsil was made. In this case we discuss the clinical and histopathological features of this lesion and present a short review of the current literature.

scholarly journals Proses Pengambilan Keputusan

2019 ◽  
Author(s):  
yola febriani ◽  
Hade Afriansyah ◽  
Rusdinal
Keyword(s):  
Decision Making ◽  
Problem Solving ◽  
Literature Review ◽  
Creative Thinking ◽  
Human Life ◽  
Decision Makers ◽  
New Information ◽  
The Right ◽  
Alternative Solutions ◽  
Made In

This article aims to describe how is the process of decision making. Decision making is something that is never separated from human life, both simple decision making and complex problems. Everyone is always faced with the choice to take a decision. To be able to take the right decisions, every person should know the steps. This article presents what the decision-making steps and what is the importance of creative thinking in decision making. Creative thinking will help decision makers to improve the quality and effectiveness of problem solving and decision making results were made. In relation to the process of decision making, creative thinking is needed, especially in identifying problems and develop alternative solutions. The methodology used to arrange this article is Systematic Literature Review (SLR). First, researcher find relevant theories, and then make a conclusion about it, then analyzing, and finally make a new information based researcher analyzing.

scholarly journals Proses Pengambilan Keputusan

2019 ◽  
Author(s):  
yola febriani ◽  
Hade Afriansyah ◽  
Rusdinal
Keyword(s):  
Decision Making ◽  
Problem Solving ◽  
Literature Review ◽  
Creative Thinking ◽  
Human Life ◽  
Decision Makers ◽  
New Information ◽  
The Right ◽  
Alternative Solutions ◽  
Made In

This article aims to describe how is the process of decision making. Decision making is something that is never separated from human life, both simple decision making and complex problems. Everyone is always faced with the choice to take a decision. To be able to take the right decision, every person should know the steps. This article presents what the decision making steps and what is the importance of creative thinking in decision making. Creative thinking will help decision makers to improve the quality and effectiveness of problem solving and decision making results were made. In relation to the process of decision making, creative thinking is needed, especially in identifying problems and develop alternative solutions. The methodology used to arrange this article is Systematic Literature Review (SLR). First, researcher find relevant theories, and then make a conclusion about it, then analyzing, and finally make a new information based researcher analyzing

scholarly journals ANALYTICAL DESCRIPTION OF THE MIXER PERFORMANCE FOR BULK MATERIALS WITH SCREW BLADES

2019 ◽  
pp. 69-78 ◽  
Author(s):  
Марина Борисова ◽  
Marina Borisova ◽  
Владимир Новиков ◽  
Vladimir Novikov ◽  
Владимир Коновалов ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Animal Feed ◽  
Bulk Material ◽  
Specific Energy Consumption ◽  
Analytical Description ◽  
Bulk Materials ◽  
Rotating Shaft ◽  
Discharge Opening ◽  
Horizontal Shaft ◽  
Blade Mixer

The aim of the study is to reduce the energy consumption of the blade mixer for bulk materials in regard to its de-sign parameters. Preparation of feed mixtures is carried out mainly by mixers of various designs, as well as extrud-ers and other auger equipment. Widespread horizontal mixers with blades mounted on a rotating shaft are wide-spread and used. They are distinguished by the ability to achieve the necessary smooth mixture within short oper-ating time. The main purpose of the proposed mixer is the preparation of dry mixtures of bulk feed components. The intended use of the mixer is the preparation of concentrated animal feed n agricultural production. In Samara SAA, the design of the blade mixer with screw blades was developed based on the literature review and analysis of the technological process of mixers. The mixer consists of a body with a horizontal shaft with radial trapezoidal screw blades. The proposed blades allow to direct forces in such a way that the total (resulting) projection of the resistant force of the material along the shaft will tend to zero due to the changing angle of the profile and width of the blades. At the same time, an axial force will be created at the edge of the blade at a certain radius, which facili-tates to unload mixer through the discharge opening. The expressions of specific energy consumption for mixing, as well as the work duration of the mixer cycle are given. An expression allowing estimation of an average flow rate of bulk material from the discharge opening of the mixer is obtained. It is established that the position of the gate regulating the area of the discharge opening can affect the volume of the portion simultaneously processed by the mixer, filling volume of mixer and the quality of the mixture.

scholarly journals Study of the process of preparing feeding mixtures using the composite mixer

2018 ◽  
Vol 5 (1) ◽  
pp. 17-22 ◽  
Author(s):  
M. Chernovol ◽  
M. Sviren ◽  
R. Kisiliov
Keyword(s):  
Mathematical Modeling ◽  
Slope Angle ◽  
Mixing Process ◽  
Solid Mass ◽  
Technological Parameters ◽  
Effi Ciency ◽  
Paddle Mixer ◽  
Working Bodies ◽  
The Impact ◽  
The Mathematical Model

Aim. Enhancing the quality and improving the technological process of mixing feeds using the new con- struction of the mixer and substantiating its rational parameters. Methods. Mathematical modeling theories, fundamentals of using machinery in animal breeding. Results. The estimated model of the functioning of a constructive-technological scheme of a composite mixer and the mathematical model of the dynamic interac- tion of mixer paddles and the solid mass of feeds were elaborated. It was established that the technological effi ciency of preparing the homogeneous mixture depends on physical and mechanic properties of its compo- nents, the impact and interaction between the form and geometric parameters of the attacking surface of the paddles, the slope angle, the setting increment and working modes of the mixer. Conclusions. The results of the studies confi rm the possibility of enhancing the effi ciency of the technology of preparing completely balanced feeding mixtures for cattle via the intensifi cation of the mixing process using the construction of the composite belt-paddle mixer, the elaboration of theoretical fundamentals of the interaction of feed components with the working bodies and substantiating their main constructive and technological parameters.

scholarly journals O MARCO CIVIL DA INTERNET NO BRASIL: DIREITOS, DEVERES E PROGRAMAS

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Marcelo Doval Mendes
Keyword(s):  
Civil Rights ◽  
Literature Review ◽  
Freedom Of Expression ◽  
Good Time ◽  
The Internet ◽  
The Core ◽  
Keywords Internet ◽  
The Law ◽  
Use Of The Internet ◽  
Made In

O artigo objetiva analisar a Lei n� 12.965/2014, que disciplinou o uso da Internet no Brasil. Com base na interpreta��o de seus dispositivos, na revis�o da literatura e na observa��o da jurisprud�ncia, o estudo centra-se em tr�s aspectos do denominado marco civil da Internet: os direitos garantidos, os deveres institu�dos e os programas almejados. Quanto aos direitos, o foco est� nos usu�rios, tra�ando um panorama geral e abordando especificamente as d�vidas quanto � inviolabilidade das comunica��es via Internet face �s disposi��es constitucionais pertinentes. Quanto aos deveres, os objetos s�o a manuten��o dos registros pelos servidores e sua responsabiliza��o civil, estabelecendo-se compara��o com o quadro jurisprudencial anterior ao diploma legal. Finalmente, quanto aos programas, o cerne da discuss�o � o desejado sopesamento legislativo de princ�pios constitucionais, com o debate sobre a preval�ncia da liberdade de express�o. Na conclus�o, destacam-se a boa hora em que veio a legisla��o e sua feitura no melhor espa�o para regula��es desse tipo, o Parlamento. Sem preju�zo, s�o apresentadas as preocupa��es quanto a poss�veis restri��es de direitos, quanto a formas de fiscaliza��o do cumprimento dos deveres e quanto � necess�ria densifica��o de conte�dos das normas ainda abertas do diploma. Palavras-chave: Internet. Marco civil. Brasil Abstract: The article analyzes the Law No. 12.965/2014, which regulates the use of the Internet in Brazil. Based on the interpretation of its provisions, the literature review, and observation of jurisprudence, the study focuses on three aspects of the called civil rights framework for Internet: guaranteed rights, imposed obligations and targeted programs. With regard to rights, the focus is on users, tracing an overview and specifically addressing questions concerning the inviolability of Internet communications under the related constitutional provisions. With respect to obligations, the objects are the maintenance of records by servers and their civil liability, comparing the new law and the previous jurisprudential framework. Finally, regarding the programs, the core of the discussion is the desired legislative assessment of constitutional principles, paying attention to the debate over the prevalence of freedom of expression. In conclusion, the highlights are the good time of the legislation and the fact that it was made in the best space for such regulations, the Parliament. Notwithstanding, the article presents concerns about possible restrictions of rights, forms of the enforcement of obligations and required densification of the contents of the law. Keywords: Internet. Civil Rights Framework. Brazil.

scholarly journals A Scoping Review of Barriers to Investment in Climate Change Solutions

2019 ◽  
Vol 11 (11) ◽  
pp. 3201 ◽  
Author(s):  
Sarah Hafner ◽  
Olivia James ◽  
Aled Jones
Keyword(s):  
Climate Change ◽  
Content Analysis ◽  
Literature Review ◽  
Policy Development ◽  
Academic Research ◽  
Academic Community ◽  
Timely Manner ◽  
Scoping Literature Review ◽  
Development Processes ◽  
Made In

The finance sector has engaged with policy development processes associated with climate solutions for well over a decade, with the aim of overcoming barriers to investment. In this paper we analyse 31 practice-based policy reports which highlight key barriers to such investing. We use those practice-based policy reports to identify themes associated with barriers to investment to conduct a scoping literature review of academic research. We identify 91 relevant papers and use content analysis to summarise the barriers identified in a structured way to help inform the research landscape in a timely manner. Given the urgency of this issue, we call on the academic community to focus more effort in this new and emerging discipline and, in particular, on the need for an independent view on the validity of some of the claims made in these practice-based policy reports.

Exploring Citations in Chemical Engineering Literature Review

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Yasmin Hanafi Zaid ◽  
Sarimah Shamsudin ◽  
Hadina Habil
Keyword(s):  
Literature Review ◽  
Academic Writing ◽  
Chemical Engineering ◽  
Research Literature ◽  
Engineering Student ◽  
Student Writers ◽  
Academic Texts ◽  
Citation Practices ◽  
Research Students ◽  
Made In

Citation is considered as an essential part in any academic writing whereby it is one way for writers to support any claims or arguments made in their study with literature from previous research. Literature review is known as a chapter which provides background for research described in a thesis. However, relatively not many studies are done on literature review chapter of thesis which may be due to the extensive nature of the text. Writing academic texts such as a thesis requires an author to acknowledge other researchers’ work through proper use of citations. Learning the appropriate way to cite is important in any kinds of academic writing especially among research students who are writing their theses. Therefore, the main aim of this study is to investigate the citation practices in doctoral theses of Chemical Engineering. The purpose of this study is two folds; i) to identify the types of citations used in the corpus (using Swale's 1990 categorization) and ii) to examine the functions related to the citations used (using Thompson's 2001 framework). Three literature review chapters were analysed first to identify the types of citations used in the mini corpus and the functions related to the citations. The results of the study show that engineering student writers mostly used Non-integral citations as compared to Integral. The study concludes with a discussion on the skills of citing the literature which should be given more attention to raise the awareness level among students.

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