2,614 research outputs found

    Chawls: Analysis of a middle class housing type in Mumbai, India

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    This thesis documents and analyzes a building-type called chawl in Mumbai, India. Typically occupied by middle class residents, chawls provide access to a range of services and, most importantly, a social support-system that makes life easier in contemporary Mumbai. The research examines how chawls developed within the urban context of Mumbai and how they contribute to the social and cultural lives of their residents. Research methods include a literature review of books, journals, newspaper articles as well as pictographic record and interviews with residents living in the two case study chawls. The analysis shows that a dense social-network between the residents is one of the main reasons for them to live in the chawls. In a dense city like Mumbai, with a lack of affordable housing, chawls provide a sustainable model for middle class housing that should be maintained and can potentially serve as a model for future housing projects

    Effective Utilization of quarry waste and industrial waste as partial replacement of fine aggregates in concrete to resist acid attack

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    The aim of this study is to observe the concrete resistance towards acid attack. This is studied on M40 grade concrete, inwhich 5% by weight of binder is replaced with metakaolin and fine aggregate is replaced partially with the range of 5 to20% by marble sludge powder and green sand simultaneously. Four different mixes other than control mix is taken for thisstudy. The 100mm cubes are casted, cured and average compressive strength is compared with conventional concreteand those cured under two different acids. The two different acids taken for this study are Hydrochloric Acid and SulphuricAcid. The average percentage loss of weight and average compressive strength of cubes before and after two differentacids for all the mixes are investigated. From the experimental results, it is inferred that the control mix when cured underboth 1% concentrated HCl and H2SO4 solutions showed a high loss in weight comparing with modified concrete. Theincrease in marble powder and green sand upto 10% by weight of fine aggregate gives high reduction in loss of weight.The mix with 10% marble powder and green sand offered comparatively better solutions insisting the concrete modifiedwith the same can be recommended for making good and acid resisting concrete

    REAL-TIME VIDEO WATERMARKING FOR COPYRIGHT PROTECTION BASED ON HUMAN PERCEPTION

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    There is a need for real-time copyright logo insertion in emerging applications, such as Internet protocol television (IPTV). This situation arises in IP-TV and digital TV broadcasting when video residing in a server has to be broadcast by different stations and under different broadcasting rights. Embedded systems that are involved in broadcasting need to have embedded copyright protection. Existing works are targeted towards invisible watermarking, not useful for logo insertion. MPEG-4 is the mainstream exchangeable video format in the Internet today because it has higher and flexible compression rate, lower bit rate, and higher efficiency while superior visual quality.The main steps for MPEG-4 are color space conversion and sampling, DCT and its inverse (IDCT), quantization, zigzag scanning, motion estimation, and entropy coding. In this work a watermarking algorithm that performs the broadcaster\u27s logo insertion as watermark in the DCT domain is been presented. The robustness of DCT watermarking arises from the fact that if an attack tries to remove watermarking at mid frequencies, it will risk degrading the fidelity of the image\video because some perceptive details are at mid frequencies. The suggested methods has implemented in matlab

    Secure and Efficient Utilization of Encrypted Cloud Data using Multi-Keyword Ranked Search

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    Cloud Computing is a technology that provides services to users such as software as a service, platform as a service and storage as a service. These services are provided based on Pay-per-Use basis so these services are cost effective and flexible. Due to this advantage of cloud computing, the individuals as well as the enterprises are getting motivated to shift their local sensitive and huge data management system to cloud storage. But the sensitive data has to be encrypted before outsourcing in order to provide security to the data. After the data has outsourced it has to be utilized efficiently without losing the originality as it was stored. In this paper we provide a mechanism called ”Multi-keyword Ranked Search over Encrypted cloud data” that gives better and efficient searched result over the encrypted data taking multiple keywords as query, which obsoletes the tradition searching scheme based on plain text search. And we use a “Coordinate Matching” technique to find as many matches as possible and use “inner product similarity” to retrieve relevance search results. So if user wants to retrieve the data stored on cloud, he can specify the multiple keywords and rank for relevance retrieval of results. Finally results the user with top ranked files. DOI: 10.17762/ijritcc2321-8169.160415

    A Freewill and Automated Information Housed Infrastructure of Cloud for E-Learning

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    The one of the most widely used and a prominent service on the internet is World Wide Web. It provides wide connectivity and promising features, that makes one being ease of access, and it has been treated as a common place of information. The Cloud services can be accessed only with the help of Internet. E-Learning System is one which allows the learner to learn the things according to his area of interest. And can be thought as the wonderful resource for learning regardless of the location. Main aim behind this E-learning system is to provide a user friendly environment, in which user is free to learn anything which he wants. Only the registered learners can make use of the features provided by the system, after the registered people chooses their interested subject/topic and go for starter test. This starter tests helps to establish incremental learning process depending upon his subject knowledge. In brief, e-Learning System gives connectivity throughout the world to the massive knowledge. DOI: 10.17762/ijritcc2321-8169.15036

    The role of platelet indices in ischemic heart disease: a hospital based case control type of study

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    Background: In developing countries, Ischemic heart diseases (IHD) is one of the leading causes of morbidity and mortality. The underlying pathology of CAD is atherosclerosis. When this atherosclerotic plaque ruptures, platelets play a crucial role in the prothrombotic events and forms a thrombus on this plaque and as a result coronary artery gets occluded causing ischemia and infarction. Platelet contains many chemokines, cytokines and growth factors. Release of these factors along with interaction with endothelial cells and leukocytes promotes inflammation and progression of atherosclerosis. We aimed to investigate the association between platelet volume indices in patients with diagnosis of Ischemic heart disease in comparison with control group.Methods: By using automated cell counter platelet count and platelet volume indices - were compared with Normal healthy or non-cardiac chest pain patients with the use of unpaired t test.Results: In the present study, we demonstrated that platelet count is significantly low and MPV and PDW are significantly high in Ischemic heart disease as compared to patients with noncardiac chest pain or healthy subjects. The correlation of MPV with PC revealed an inverse correlation between the patients of IHD and healthy or non-cardiac chest pain patients which is statistically significant.Conclusions: The platelet volume indices are an important, simple, effortless and a cost-effective tool useful in predicting the development of an acute coronary event sometimes in the near future and therapeutic modification for improved patient’s cardiovascular care

    Review on Strain Monitoring of Aircraft Using Optical Fibre Sensor

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    Structural health monitoring of aircraft assures safety, integrity and reduces cost-related concerns by reducing the number of times maintenance is required. Under aerodynamic loading, aircraft is subjected to strain, in turn causing damage and breakdown. This paper presents a review of experimental works, which focuses on monitoring strain of various parts of aircraft using optical fibre sensors. In addition, this paper presents a discussion and review on different types of optical fibre sensors used for structural health monitoring (SHM) of aircraft. However, the focus of this paper is on fibre bragg gratings (FBGs) for strain monitoring.  Here, FBGs are discussed in detail because they have proved to be most viable and assuring technology in this field. In most cases of strain monitoring, load conditioning and management employs finite element method (FEM). However, more effort is still required in finding the accurate positions in real time where the sensors can be placed in the structure and responds under complex deformation
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