EXPERIMENTAL STUDY ON MECHANICAL AND DURABILITY PROPERTIES OF HIGH PERFORMANCE CONCRETE REPLACING COARSE AGGREGATE BY FERRO SLAG AGGREGATES

The main objective of this research is to find out alternative materials for concrete to meet the demands of coarse aggregate for the upcoming years, to provide adequate strength at minimum cost, to make the eco-friendly structures.  Use of ferro slag a waste industrial by-product of iron and steel production provides great opportunity to utilize it as an alternative to normally available aggregates (coarse). In this research, ferro slag is used and M60 grade concrete of  W/C ratio 0.28 was used respectively for the replacement of 0 to 100% coarse aggregate by ferro slag aggregate for find out the optimum ratio of steel slag. In this study, a mix ratio of 1: 1.2: 2.4 is used in conventional mix. Initial optimization of  ferro slag aggregate for replacing the natural coarse aggregate was find with 7and 28 days strength. Test on compressive strength and non-destructive test at 7 and 28 days were conducted. It was concluded that possible optimum replacement of slag material was found to be 40%. Split Tensile Strength and Flexural Strength and durability characteristics were carried out for conventional and optimum concrete mix to study the properties of concrete with ferro slag

Unlocking the Potential of Blockchain Through Multi-Criteria Decision Making in Platform Selection

Purpose: The purpose of this paper is to introduce a methodology that can help organizations choose the best Blockchain platform for their specific business case. With numerous options available, it's important to carefully consider the capabilities of a Blockchain before selecting it. This methodology is intended to provide a structured approach to aid in the decision-making process, taking into account the various characteristics of Blockchain that are needed.   Theoretical Framework: The theoretical framework for this paper is based on Multi Criteria Decision Making (MCDM) and ISO/IEC 25010. MCDM is a decision-making technique that considers multiple criteria when making a choice, which is useful for selecting the best Blockchain platform. ISO/IEC 25010 is a standard that provides a framework for evaluating software quality characteristics, which is relevant for evaluating the quality of the Blockchain platform.   Design/Methodology/Approach: The methodology presented in this paper involves a structured approach to selecting the best Blockchain platform for a specific business case. The approach is based on a combination of MCDM and ISO/IEC 25010, and involves several steps. First, the relevant criteria for selecting the Blockchain platform are identified. Next, a weighting system is developed to determine the importance of each criterion. Then, each Blockchain platform is evaluated based on the criteria and weights, and a score is assigned. Finally, the scores are aggregated to determine the best Blockchain platform for the specific business case.   Findings: The main finding of this paper is the methodology for selecting the best Blockchain platform for a specific business case. This methodology can aid organizations in making an informed decision when choosing a Blockchain platform, taking into account the various characteristics of Blockchain that are needed. The paper also highlights the importance of careful consideration when selecting a Blockchain platform, as the wrong choice could have negative consequences.   Research, Practical & Social Implications: The research implications of this paper are significant, as it provides a structured approach for selecting the best Blockchain platform for a specific business case. This methodology can be used across industries and could have a significant impact on the adoption of Blockchain technology. From a practical perspective, this methodology can aid organizations in making informed decisions when selecting a Blockchain platform, which can save time and resources. From a social perspective, the adoption of Blockchain technology has the potential to revolutionize business operations and improve transparency and accountability.   Originality/Value: The originality of this paper lies in the development of a methodology for selecting the best Blockchain platform for a specific business case. This methodology is based on a combination of MCDM and ISO/IEC 25010 and is not specific to any one industry. The value of this paper is in providing a structured approach to aid organizations in making an informed decision when selecting a Blockchain platform, taking into account the various characteristics of Blockchain that are needed

Humanizing Research on Working Conditions in Supply Chains:Building a Path to Decent Work

Research on managing working conditions in the supply chain is currently conducted under the umbrella of "social" sustainability. In this introduction to the 2021 Emerging Discourse Incubator, "Managing Working Conditions in Supply Chains: Towards Decent Work," we argue that the trajectory of this research may be insufficient for addressing decent work. This is due to four characteristics of the extant literature-buyer-centrism, product-centrism, techno-centrism, and social-centrism. As an alternative, we offer ways to 'humanize' research on working conditions in supply chains across four dimensions: actors, issues, contexts, and methods. Through humanization, supply chain research has the potential to make a significant scholarly impact as well as to contribute to the realization of decent work in supply chains. We use our proposed path forward as a lens to elaborate on the core contributions of the four invited papers in the Emerging Discourse Incubator

Arsenic-induced oxidative stress in fresh water catfish Tilapia mossambica

An experiment was conducted to investigate bioaccumulation potential of arsenic and changes in oxidative stress indices in liver tissue from arsenic exposed fish Tilapia mossambica were used for the present investigation. The Tilapia mossambica were exposed to two non lethal doses of arsenic for 10 days, which induced tissue lipid peroxidation, increased the ratio of oxidized to reduced glutathione and produced excess H2O2 within 1–2 days of exposure. Furthermore, arsenic treatment increased the activity of antioxidant enzymes such as superoxide dismutase (SOD), and catalase but decreased glutathione reductase (GR) activity within a day of exposure, indicating the generation of oxidative stress in fish at an early stage. It is therefore concluded that peroxisomal H2O2 metabolizing enzymes are potential targets of arsenic toxicity in Tilapia mossambica

Towards an Institutional Knowledge Repository (IKR) at IGCAR

The collective acquired information of an organization is called the ‘institutional knowledge’. The centralized Knowledge Repository uses standard taxonomies to consolidate information into one place allowing knowledge to be searched and retrieved with maximum efficiency and accuracy. Many organizations have realized the value of institutional knowledge and already initiated knowledge management systems that collect, store, redistribute, utilize and ultimately leverage the institutional knowledge for the benefit of the organization. All the organizations, in particular the R&D institutions like IGCAR need to build knowledge repository on its specific areas of interest. Once created, the IKR will act as a vehicle for knowledge dissemination, sharing and transfer. This paper gives a comprehensive view on building IKR at IGCAR

The third moment of quadratic Dirichlet L-functions

We study the third moment of quadratic Dirichlet L-functions, obtaining an error term of size $O(X^{3/4 + \varepsilon})$.Comment: 27 pages. v2: modified a remark on p.

User interface design and development: the role of open source systems

Open Source movement has tremendously influenced Information industry, in particular the Digital Library Environment where the Information Systems and services are inevitable. This has helped the Library and Information Centers in developing User Interface to render web based services to the patrons. Wherever the network infrastructure and the target users are in place, the design and development of IR user interface using Open Source system for a specific application is very much possible. This paper highlights the role of Open Source Systems in detail and explains a prototype IR User Interface which was developed in-house at Indira Gandhi Centre for Atomic Research, Kalpakkam

Ellipsometric Studies on Silver Telluride Thin Films

Silver telluride thin films of thickness between 45 nm and 145 nm were thermally evaporated on well cleaned glass substrates at high vacuum better than 10 – 5 mbar. Silver telluride thin films are polycrystalline with monoclinic structure was confirmed by X-ray diffractogram studies. AFM and SEM images of these films are also recorded. The phase ratio and amplitude ratio of these films were recorded in the wavelength range between 300 nm and 700 nm using spectroscopic ellipsometry and analysed to determine its optical band gap, refractive index, extinction coefficient, and dielectric functions. High absorption coefficient determined from the analysis of recorded spectra indicates the presence of direct band transition. The optical band gap of silver telluride thin films is thickness dependent and proportional to square of reciprocal of thickness. The dependence of optical band gap of silver telluride thin films on film thickness has been explained through quantum size effect. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2371

Carbon isotope ratios of amylose, amylopectin and mutant starches

Carbon isotope ratios (expressed as δ13C values) were determined for various sources of starch and the starch fractions amylose and amylopectin. The δ13C values of amylose were consistently less negative, 0.4–2.3 ‰, than those of amylopectin in kernal starch from maize (Zea mays) and barley (Hordeum vulgare) and in tuber starch from potato (Solanum tuberosum). Kernel starch isolated from the maize mutants wx1 and ae1, with known genetic lesions in the starch biosynthetic pathway, also showed significant differences in δ13C values. Collectively, these results suggest that variation in carbon isotope ratios in the amylose and amylopectin components of starch may be attributed to isotopic discrimination by the enzymes involved in starch biosynthesis