scholarly journals An Up-to-Date Review on Industrially Significant Inhibitors for Corrosion Control of Zinc

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Mikitha Pais ◽  
Padmalatha Rao
Keyword(s):  
Alkaline Medium ◽  
Nonferrous Metal ◽  
Inhibition Efficiency ◽  
Research Work ◽  
Galvanized Steel ◽  
Experimental Conditions ◽  
Depth Analysis ◽  
The World ◽  
Inhibition Studies ◽  
Intense Research

AbstractZinc, an important nonferrous metal, is the fourth most used metal in the world. It has innumerable uses in industrial as well as in other segments. The primary utility of zinc is in galvanization and as an anode in the battery. Steel coated with zinc, which is known as galvanized steel, is widely used in industries. Even though zinc protects many metals from undergoing corrosion, by itself, it undergoes corrosion in several acidic, alkaline, and neutral environments. The corrosion behavior of zinc is significant in all industries where it is utilized either directly or indirectly in the form of a sacrificial coating. In-depth analysis of the reported literature indicated that corrosion attenuation of zinc in acidic and alkaline medium was studied by many researchers, and various classes of inhibitors were tried under varying experimental conditions. Most inhibitors can be amalgamated as excellent inhibitors with an inhibition efficiency of 80–90%. Even though this is a subject of intense research, systematic documentation on the same is not available in the literature. This review consolidates research work on corrosion and inhibition studies of zinc and galvanized steel over a period of three decades.

scholarly journals Medium Sized Firms in India and Their Dynamic Adjustment Towards Their Target Debt Equity Structure

2020 ◽  
Vol 4 (10) ◽  
pp. 153-160
Keyword(s):  
Research Work ◽  
Analytical Tool ◽  
Dynamic Adjustment ◽  
Equity Structure ◽  
Award Winning ◽  
Depth Analysis ◽  
The World ◽  
Specific Factors ◽  
General Method Of Moments ◽  
Relationship Of

There have been very few studies done over the world to determine the profitability of firms given the firms expected financial leverage or debt equity structure. Studies from all over the world have identified various factors that are vital in influencing the target debt equity structure of firms. However, different factors vary in terms of their influence on determining the optimal debt equity structure of firms for different countries. This paper researches into various firm specific factors for medium sized companies in India and makes an in-depth analysis to establish the relationship of their impact on medium sized firms which move towards the target debt equity structure through a dynamic process. The medium sized companies have been sampled keeping in mind the market capitalization of these firms in India. This research work tries to explain those factors which have an influence on achieving the optimum debt equity structure for medium sized firms and tries to study how these firms could use their resources in consolidating upon these firm specific factors for the overall profitability of the firms. This line of research has been rarely tried in the Indian context and it promises an innovative insight into scientific research on determining a firm’s profitability. This research work is based on a very unique analytical tool namely the General Method of Moments (GMM) which is a Nobel award winning analytical tool first proposed by its founder Lars Peter Hansen in 1982.This research work is purely quantitative and empirical in nature and is academically relevant for academicians and industry equally.

Movement for Sustainable Development through Green Economics

2016 ◽  
Vol 3 (01) ◽  
Author(s):  
Rakesh Rangwani
Keyword(s):  
Sustainable Development ◽  
Environmental Economics ◽  
Public Awareness ◽  
Research Paper ◽  
Green Economy ◽  
Agenda 21 ◽  
Secondary Sources ◽  
Depth Analysis ◽  
The World ◽  
Heads Of State

Despite substantial improvements over the past 23 years in many key areas of sustainable development, the world is not on track to achieve the goals as aspired to in Agenda 21, adopted in Rio de Janeiro in 1992, and reiterated in subsequent world conferences, such as the World Summit on Sustainable Development held in Johannesburg in 2002. While there have been some achievements in implementing Agenda 21, including the implementation of the chapters on “Science for Sustainable Development” and on “Promoting Education, Public Awareness and Training”, for which UNESCO was designated as the lead agency, much still remains to be done. This decade had seen the idea of a “green economy” float out of its specialist moorings in environmental economics and into the mainstream of policy discourse. It is found increasingly in the words of heads of state and finance ministers, in the text of G20 communiqués, and discussed in the context of sustainable development and poverty eradication. The research paper focused to establish a relationship between sustainable development and green economics. The research paper is descriptive and analytical in nature. The data collected from secondary sources such as report from niti aayog, IMF indicators, RBI reports, newspapers, journals. The research design was adopted to have greater accuracy and in depth analysis of the research study. The statistical tools for the analysis are also being used.

Regenerative flow pumps, blowers and compressors – A review

2021 ◽  
pp. 095765092110181
Author(s):  
M Sreekanth ◽  
R Sivakumar ◽  
M Sai Santosh Pavan Kumar ◽  
K Karunamurthy ◽  
MB Shyam Kumar ◽  
...  
Keyword(s):  
Quantitative Data ◽  
Research Work ◽  
Future Research ◽  
Performance Parameters ◽  
The World ◽  
Working Principle ◽  
Computational Fluid Dynamics Cfd ◽  
Specific Speed ◽  
Regenerative Flow ◽  
Product Description

This paper presents a detailed and objective review of regenerative flow turbomachines, namely pumps, blowers and compressors. Several aspects of turbomachines like design and operating parameters, working principle, flow behaviour, performance parameters and analytical and Computational Fluid Dynamics (CFD) related details have been reviewed and summarized. Experimental work has been put in perspective and the most useful results for optimized performance have been presented. Consolidated plots of specific speed-specific diameter have been plotted which can be helpful in the early stages of design. Industrial outlook involving details of suppliers from various parts of the world, their product description and applications too are included. Finally, future research work to be carried out to make these machines widespread is suggested. This review is targeted at designer engineers who would need quantitative data to work with.

The physicochemical and DNA binding studies of some medicinal compounds in solutions

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Abbas Khan ◽  
Naila ◽  
Muhammad Humayun ◽  
Muhammad Sufaid Khan ◽  
Luqman Ali Shah ◽  
...  
Keyword(s):  
Flow Behavior ◽  
Aqueous Media ◽  
Research Work ◽  
Binding Constants ◽  
Physicochemical Study ◽  
Solution Temperature ◽  
Binding Studies ◽  
Experimental Conditions ◽  
Medicinal Compounds ◽  
Association Behavior

Abstract To understand the expected mode of action, the physicochemical study on the solution properties of medicinal compounds and their interaction with deoxyribonucleic acid (DNA), under varying experimental conditions, is of prime importance. The present research work illustrates the physicochemical study and interaction of certain medicinal compounds such as; Levofloxacin, Ciprofloxacin, and Ibuprofen with DNA. Density, viscosity and surface tension measurements have been performed in order to determine, in a systematic manner, the physicochemical, volumetric and thermodynamic properties of these compounds; and most of these parameters have shown different behavior with varying concentration of solution, temperature of the medium and chemical nature/structure of the compound. In addition, these drugs showed a spontaneous surface-active and association behavior in aqueous solutions. The flow behavior, surface properties, volumetric behavior and solute–solvent interaction of these drugs were prominently influenced by experimental variables and addition of DNA to their solutions. UV–Visible spectroscopy was also used to examine the interaction of these drugs with DNA in aqueous media in detail. Calculated values of binding constants (Kb) for all complexes of drug-DNA are positive, indicating a fruitful binding process. It is seen that a smaller Kb value reflects weaker binding of the drug with DNA and vise versa. Due to the difference in the chemical structure of drugs the values of binding constant are different for various drug-DNA complexes and follow the order Kb(Levofloxacin-DNA) > Kb(Ciprofloxacin-DNA) > Kb(Ibuprofen-DNA). On the basis of spectral changes and Kb it can be said that the binding of all these drugs with DNA may be of physicochemical nature and the dominating binding force be of hydrogen bonding between oxygen of drugs and hydrogen of DNA units and the drug having more oxygen atoms showed stronger binding ability. The data further suggest a limited possibility of chemical type attachment of these drugs with DNA.

Text Writing Using Air Gestures for People With Limited Hand Motor Skills

2020 ◽  
Author(s):  
Michele Ermidoro ◽  
Andrea Vitali ◽  
Fabio Previdi ◽  
Caterina Rizzi
Keyword(s):  
Mobile Devices ◽  
Motor Skills ◽  
Specific Interaction ◽  
Research Work ◽  
Interaction Style ◽  
The World ◽  
Software Modules ◽  
Ict Tools ◽  
Brain Stroke ◽  
Text Writing

Abstract Mobile devices and laptops are the main ICT tools to exchange information among people in the world. All the applications are designed by following a specific interaction style based either touchscreen or mouse and keyboard, which can be performed only with detailed movements of hands and fingers. Traditional interaction becomes difficult for elderly who have diseases limiting the hand motor skills, such as arthritis and brain stroke. The use of simple air gestures can be adopted as alternative interaction style to interact with smartphones, tablets and laptops. The aim of this research work is the development of an application that allows text writing using air gestures for people with limited hand motor skills. The application embeds several computer vision algorithms and convolutional neural networks software modules to detect and drawn alphanumeric characters and recognizing them using both mobile devices and laptops. The preliminary results obtained show that the approach is robust, and it can easily detect the alphanumeric characters written with the movement of the wrist.

Industrial economics in the context of globalization: scientific, practical foundations and development priorities

2021 ◽  
Vol 27 (5) ◽  
pp. 117-125
Author(s):  
I. Krasovskaya ◽  
◽  
T. Malysheva ◽  
Keyword(s):  
Russian Federation ◽  
Well Being ◽  
Division Of Labour ◽  
Sustainable Growth ◽  
High Tech ◽  
Industrial Economy ◽  
Industrial Economics ◽  
Depth Analysis ◽  
The World ◽  
The Russian Federation

The relevance of the publication topic is argued by the need for an in-depth study of the globalization process, which is global financial, political and cultural integration, unification, the global division of labour, the planetary migration of capital, human and productive resources, standardization of legislation, and interference of cultures of the world community. The theoretical and practical goals of the publication are to study causal algorithms for the formation of a negative scientific and production balance of the Russian Federation and an increase in disproportions between the import and export of high-tech products, as well as a comparative description of global development as a symbiosis of contradictory trends in the subordination of the world economy to the interests of transnational capital. The theoretical and methodological basis of the publication was the scientific works of domestic and foreign scientists studying the globalization of the industrial economy due to the intensification of international scientific and technological competition and the expansion of the innovation market, deepening of specialization and division of labour, and the increase in the risks of producing high-tech products at the national and world levels. Scientific novelty lies in the authors’ interpretation of such socio-economic advantages of globalization as economies of scale, stimulation of labour productivity, rationalization of production at the interstate level and the spread of innovative technologies, cost reduction, price regression, achieving sustainable growth in the well-being of society, on the basis of which the development is confirmed global industrial economy on a research basis characterized by such attributes interdependence, asymmetry, regionalization and diversification, regression efficiency, inclusiveness, resource and raw material demarcation, a high degree of uncertainty and of the economic risk. The practical significance of the results obtained is determined by an in-depth analysis of the American (based on differentiation of labor and specialization of personnel, demarcation of labor duties, concentration of scientific and production efforts on a purely economic result) and Eurasian (characterized by mobility and compactness of production processes, saving transaction costs, adaptability to market conditions and availability of labour-tolerant staff) strategies for innovative development of industrial economics. Based on a critical rethinking of the American and Eurasian strategies, proposals and recommendations are formulated on the formation of the scientific and technical policy of the Russian Federation

Dehumanizing to Demonizing: Critical Discourse Analysis of George Bush’s Speeches for Exploring the Influence of Dehumanizing Metaphor in Political Discourse

2021 ◽  
pp. 154-168
Keyword(s):  
Discourse Analysis ◽  
Critical Discourse Analysis ◽  
Postcolonial Theory ◽  
Research Work ◽  
Critical Discourse ◽  
George Bush ◽  
Sense Of Security ◽  
The Us ◽  
The World ◽  
Sense Of Justice

To legitimize US invasion of Iraq, Bush fabricated fake intelligence reports, and depended solely on propaganda; he manipulated language in a well-calculated manner; most particularly, the metaphors chosen and devised for his speeches were such that convinced the US citizens about the legitimacy of the invasion, elicited financial support of the European allies and moral support of the majority of the world community. This research work used discourse analysis to study the metaphors that were used by George Bush in the speeches he made on 8 different occasions, and the theoretical framework used in it is the combination of critical discourse analysis CDA with postcolonial theory concept of orientalism.It utilized both qualitative and quantitative data collection tools.It found that most of the task was accomplished through the linguistic manipulation in the shape of metaphor used to dehumanize the enemy, which first made the US citizens feel as victims to the jealousy of rogue Muslim states for intending to completely annihilate them; then, it made appeal to their sense of justice, sense of security, and right to self-defense. By grouping the world citizens into Us and Them groups, the innocent, peace-loving and the war-mongers, the angels and the devils, and then by placing themselves and the rest of the world among the first group and placing the powerfulMuslims states among the second group, the US exploited the feelings and thoughts of all. Despite the UN and the rest of the world having come to know the sheer lies of the US now, the US still has managed to flog a dead horse and blind-fold majority of the world through this linguistic manipulation in the form of using dehumanizing metaphors

scholarly journals Comparative Study of Two Nanoindentation Approaches for Assessing Mechanical Properties of Ion-Irradiated Stainless Steel 316

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 719 ◽  
Author(s):  
Michael Saleh ◽  
Zain Zaidi ◽  
Christopher Hurt ◽  
Mihail Ionescu ◽  
Paul Munroe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cross Section ◽  
Ion Irradiation ◽  
Thin Layers ◽  
Experimental Conditions ◽  
Irradiation Energy ◽  
Depth Analysis ◽  
Deformation Processes ◽  
Stainless Steel 316 ◽  
Hardness Values

Nanoindentation is a commonly used method to measure the hardness of surfaces with thin layers, and is especially useful in studying the change in mechanical properties of ion irradiated materials. This research compares two different methods of nanoindentation to study the changes in hardness resulting from ion irradiation of SS316 alloy. The samples were irradiated by He2+ ions at beam energies of 1, 2, and 3 MeV, respectively. The first method involves the indentation of the irradiated surface perpendicular to it using the continuous stiffness mode (CSM), while the second applies the indents on an oblique surface, accessing an inclined cross-section of the irradiated material. Finite element modelling has been used to further illuminate the deformation processes below the indents in the two methods. The hardness profiles obtained from the two nanoindentation methods reveal the differences in the outcomes and advantages of the respective procedures, and provide a useful guideline for their applicability to various experimental conditions. It is shown through an in depth analysis of the results that the ‘top-down’ method is preferable in the case when the ion irradiation energy, or, equivalently, the irradiated depth is small, due to its greater spatial resolution. However, the oblique cross section method is more suitable when the ion irradiation energy is >1 MeV, since it allows a more faithful measurement of hardness as a function of dose, as the plastic field is much smaller and more sensitive to local hardness values.

Heuristics for Domain-Independent Planning: A Survey

2011 ◽  
Vol 135-136 ◽  
pp. 573-577 ◽  
Author(s):  
Rui Shi Liang ◽  
Min Huang
Keyword(s):  
State Space ◽  
Heuristic Search ◽  
Research Work ◽  
Future Research ◽  
Survey Analysis ◽  
Work Related ◽  
State Space Search ◽  
Survey Results ◽  
Domain Independent ◽  
Intense Research

Increasing interest has been devoted to Planning as Heuristic Search over the years. Intense research has focused on deriving fast and accurate heuristics for domain-independent planning. This paper reports on an extensive survey and analysis of research work related to heuristic derivation techniques for state space search. Survey results reveal that heuristic techniques have been extensively applied in many efficient planners and result in impressive performances. We extend the survey analysis to suggest promising avenues for future research in heuristic derivation and heuristic search techniques.

scholarly journals The Politics of Masculinity in Tony Gould’s Imperial Warriors: Britain and the Gurkhas

2021 ◽  
pp. 34-42
Author(s):  
Ram Prasad Rai
Keyword(s):  
Qualitative Research ◽  
Hegemonic Masculinity ◽  
Research Work ◽  
The Other ◽  
Main Concern ◽  
Journal Articles ◽  
Related Area ◽  
The World ◽  
The Future ◽  
Second World

The main concern of this paper is to study on masculinity and more importantly the hyper masculinity of the Gurkhas in Imperial Warriors: Britain and the Gurkhas by Tony Gould. The writer describes the courage with discipline and dedication, the Gurkhas had while fighting for Nepal, their homeland during the Anglo-Nepal War (1814-1816) and for Britain in the First and Second World Wars, following the other wars and confrontations in many parts of the world. Despite a lot of hardships and pain in wars, they never showed their back to the enemies, but kept Britain’s imperial image always high with victories. They received Victoria Crosses along with other bravery medals. As a masculinity, the hegemonic masculinity is obviously present in the book since the high ranked British Officers are in the position to lead the Gurkha soldiers. However, the masculinity here is associated with the extreme level of bravery and that is the hyper-masculinity of the Gurkhas. Since this is a qualitative research work, the researcher has consulted various books, reviews and journal articles related to the Gurkhas. It is a new concept in the study of the Gurkhas in the particular book by Gould. So, it will certainly be a new insight for the future researchers in the related area.

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