Volume 8 | Issue 4 |

 Abstract

It is observed that, pure stoichiometric SnO2 and ZrO2 powders are expected to be insulating in nature. However, synthesized powders of bulk SnO2 and ZrO2 are not exactly stoichiometric and hence not insulating. Bulk tin oxide and zirconium oxide powders were observed to be less sensitive to polluting gases. So, nanostructured tin oxide and zirconium oxide powders were synthesized by disc type ultrasonicated microwave assisted centrifuge technique. Nanocomposite material, Zr(0.25)Sn(0.75)O4 was prepared by using synthesized ZrO2 and SnO2 powders by taking their 1:3 proportion. Thick films of nanostructured pure Zr(0.25)Sn(0.75)O4 powder were fabricated by screen printing technique. These films were surface functionalized by strontium oxide for different intervals of time followed by firing at 450oC for 30 min The characterizations of the unmodified and surface activated nanostructured Zr(0.25)Sn(0.75)O4 powder by SrO2 have been investigated by FESEM, E-DAX, XRD, etc. Electrical and gas sensing performance of the thick films were also studied in the laboratory.

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 Keywords

Zr(0.25)Sn(0.75)O4, Surface activation by SrO2, Thick films, Characterizations, etc.

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The high launch cost of rockets has led to a great interest in the development of reusable rockets. These missions were achieved with the use of liquid engine thrust vectoring. This paper discusses design and flight simulation of solid propellant rocket equipped with thrust vector control. Solid rocket motor has been designed with a goal to reach 10 km altitude. It is aimed that the solid rocket motor is to be recovered so that it can be reused for subsequent launches. The design and simulation are carried out assuming that the motion takes place in vertical direction, considering flat earth approximations. This paper deals with selection of solid propellant, grain design, calculation of performance parameters, design and optimization of the rocket motor and nozzle for desired performance, computational analysis and flight simulation with structural constraint. The flight simulation has been carried out using MATLAB� and Simulink� to prove the effectiveness of the concept. For simplicity, rocket is assumed as a point mass in flight simulation. The simulation results testify that the ascent motor is meeting the design goal of 10 km altitude and descent motor works perfectly to bring the rocket back to ground with closer to zero velocity.

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 Keywords

thrust vector control, solid rocket motor, design and optimization of rocket motor, flight simulation.

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This experiment is done by various tests to check and analyze compressive strength of the concrete after adding the optimal amount of PET fiber, as an constituent to obtain appropriate results for the research. This research shows the increased mechanical properties, at certain PET fiber fraction. In this research, we have taken a proportionate amount of PET fiber to the weight of cement to improve the mechanical property of concrete. In our research, we have mixed PET fiber concrete of M25 grade, by the fractional volume of cement in different ratios, as 0.5%, 1.0 %, 1.5% and 2%.Then , the mechanical properties of concrete namely compressive strength were compared to the standard concrete, to analyze the effective amount of PET fiber to be used in construction sites.

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Concrete, Polyethylene Terephthalate (PET fiber), compressive strength, flexural strength.

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This paper highlights the material properties of the engineered cementitious composite for the effective development of new structures and maintenance of existing structures. The material researchers have conducted a lot of experiments based on sustainability, durability and safety point of view. As a result of the attempts, finally a new material was established in the last decade. The proper selection of the fiber, mixing of the composite exhibit strain hardening and multiple cracking behaviour of the material. The strain hardening behaviour of the cementitious composite gives significant advantage under flexural loading. The crack width developed under loading is very small when compared with conventional concrete due to the bridging effect of the fiber. The material properties of ECC reinforced with following 0.5%, 1.0%, 1.5%, 2% of steel fiber and 0.1%, 0.15%, 0.2%, 0.25% of polypropylene fiber. The optimum strength attained at 1.0% of steel fiber and 0.1% of polypropylene fiber and has been claimed to be the most promising proportion of the fiber content. A series of experiments were carried out to determine the compressive strength, tensile strength and flexural characteristics of cementitious composite.

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Cemetitious concrete,steel fiber,polypropylene fiber

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A web-based venue booking management system provides reliable and easy to use online reservation system for wedding halls, party halls, and all other bookable venues. A venue booking management system provides the searching facilities. This web application is to check the availability of venue and book it; hence we need not go and visit the place. Information of individual�s venue with facilities, amenities, images etc. is displaying during the booking. It is web-based system, available from anywhere through a browser. It is simple to follow, which has web based options. It is going to provide flexible bookings. An efficient and user friendly system is required to reserve the venue before-hand and make the information available to others to check the status of the venue before booking. There is no system available in Amravati that can manage online venue booking in term of real-time availability and utilization.

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venue booking, hall management, online event venue booking, reservation system

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Heart-related diseases or cardiovascular diseases (CVDs) have been the main cause of a large number of deaths in the world over the last few decades and have emerged as the most life-threatening illness, not just in India but throughout the world. Therefore, a robust, effective and viable system is required to diagnose these diseases in time for proper medical care. Machine Learning algorithms and methods have been applied to different clinical datasets to mechanize the examination of enormous and complex information. In recent years, several researchers have used many techniques of machine learning to help the health care industry and the experts identify heart related diseases. This paper presents an overview of different models dependent on such calculations and procedures and analyze their performance. Models based on supervised learning algorithms such as, Gaussian Na�ve Bayes, Decision Trees (DT), Support Vector Machines (SVM), Linear SVC, Random Forest (RF) are quite popular among the researchers.

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Heart Disease Prediction

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Poaching in today�s world is one of the most significant threats to wildlife. Poachers use different methods to capture animals. Many commercial poachers use military-grade weapons along with arrows and spears to hunt wildlife. Sometimes, objects called snares (a set of wires tied to trees configured to capture any animal by their leg or neck that gets into it) are also implemented. Poachers also trap the animal into large nets, known as trap nets, pitfall traps (a vast pit dug in the ground that is layered with leaves and plants) or baits. In this paper, we suggest a new solution that operates in real-time to pursue the cause of wildlife conservation by preventing the poaching of any species of animals - endangered or non-endangered by profit-hungry poachers with the help of Artificial Intelligence(AI) and Internet of Things(IoT). In comparison to previous methods in the same domain, it presents an alternate approach, in the form of a monitoring system that can track poaching activity and predict poachers� behavior and alert forest authorities for any suspicious crime.

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 Keywords

Artificial Intelligence, Internet of Things, Anti-Poaching, Wildlife Conservation, Applied Machine Learning

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The capital market is an important constituent of the financial system. It is the market both debt and equity for long term funds. Generally, it is mainly deals with financial assets, excluding currency. The financial assets comprises shares, mutual funds, bonds, pension funds, fixed deposits, insurance policies, provident fund and derivatives. The Indian Stock Exchanges are well regulated, functioning smoothly and it is the indication of healthy capital market. The financial markets and financial institutions are two mechanisms of channel from savings to investment. The financial market score over financial institutions in the allocation efficiency, as they allocate savings to those investments, which have potential to yield higher returns. This inevitably leads to higher returns to savers on their savings and higher productivity on investments to enterprises. Investment culture refers to the attitudes, perceptions, and willingness of the individuals and institutions in placing their savings in various financial assets, more popularly known as securities. A study on savings behavior and Investment preferences of individual investors which includes the investors� perceptions and preferences. It assumes a most significance in the formulation of policies for the development and regulation of security markets . This study only confines to Kurnool district in Andhra Pradesh and 300 samples were selected who are living in rural areas. In this context, the researcher has collected data on their behavior, awareness of saving and investment pattern in selected study area.

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Capital market, Savings behavior, Investmen

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One of the major sensory organ of a human body is eye. Optic Nerve is the part of the eye that carries visual information from eye to brain which is located at the very back of the eye. It is a part of an eye that gets injured when eye pressure rises, if left untreated the patient may lose vision. This work aims at developing a system which will recognize the presence of Optical Nerve Head damage, identifies the area of damage and finally the percentage of damage in the nerve head by utilizing the OCT image of an eye of a person. The main reason for using OCT images is that these images give us in depth information about the eye, when compared to other methods.

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 Keywords

Optic Nerve, Optical Nerve Head damage, Optical Coherence Tomography, Glaucoma.

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Abstract In India, the twenty-first century has brought in its wake various transformations in cultural, political, religious, economic and social domains as the impact of modernity and globalization is manifested. But, these changes have also led the generation to follow the wrong doings which has led into trouble of their own alongwith the family members and the society. Modernity and globalization impact all other nation as well, the process of �diffusion, homogenization and integration� (Sivaramakrishnan and Agarwal 8) via the merging of regional and national boundaries. Hence, each and every individual in India today, has become �the subject� of development and modernization in danger of reaching the destination of erasing the cultural and regional boundaries, at the micro level. Indian literature plays an important role in creating an awareness of the necessity of transformations and emphasizes the cause and consequences, in different contexts, of these transitions. It also shows how these changes affect an individual. As a part of such an endeavour, this paper attempts to discuss the transformation of religious and regional identities of the orthodox Brahmin communities in India, and the disadvantages of the changes with the focus on Anita Nair�s Ladies Coupe This paper analyses on the important character of the novel, Akhila, a spinster, to evince the extrication of women from their entanglement in conventional roles and to what extent she has changed her personality. The narrative of this novel depicts how Akhila being born in a traditional orthodox Brahmin family dismantle and subvert the firmly established conservative brahminical values, ethics and customs to converge with the changing egalitarian modern society of India but had led herself into being a prostitute which is a curse to herself being born in a Brahmin family.

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 Keywords

Anita Nair, Identity, values, customs, egalitarian society.

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Creative Commons Attribution 4.0 and The Open Definition