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Institution

Christ University

EducationBengaluru, India
About: Christ University is a education organization based out in Bengaluru, India. It is known for research contribution in the topics: Computer science & Convection. The organization has 2267 authors who have published 2715 publications receiving 14575 citations. The organization is also known as: Christ College & Christ University.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors addressed the issue related with the challenges associated with the plasma spraying of consistent and adherent TBC on Al-9% Si research pistons and its complex contours by APS, subjecting the coated pistons to thermal fatigue tests and evaluation of the coating characteristics after subjecting to vibration.

10 citations

Journal ArticleDOI
TL;DR: In this paper, the phase-lag effects that naturally arise in the thermal non-equilibrium heat transfer problem between the fluid and solid phases are considered and a new type of heat equation is derived for both the phases.
Abstract: The onset of Darcy–Benard regular and chaotic convection in a porous medium is studied by considering phase-lag effects that naturally arise in the thermal non-equilibrium heat transfer problem between the fluid and solid phases. A new type of heat equation is derived for both the phases. Using a double Fourier series and a novel decomposition, an extended Vadasz–Lorenz model with three phase-lag effects is derived. New parameters arise due to the phase-lag effects between local acceleration, convective acceleration, and thermal diffusion. The principle of exchange of stabilities is found to be valid and the subcritical instability is discounted. The new perspective supports the finding of an analytical expression for the critical Darcy–Rayleigh numbers representing, respectively, the onset of regular and chaotic convection. The understanding of the transition from the local thermal non-equilibrium situation to the local thermal equilibrium one is also best explained through the new perspective. In its present elegant form, the extended Vadasz–Lorenz system with three phase-lag effects is analyzed using the largest Lyapunov exponent and the bifurcation diagram. It is found that the lag effects not only give rise to a quantitative difference in the above two metrics concerning chaos, but also present a qualitative difference as well in the form of the very nature of chaos.

10 citations

Book ChapterDOI
30 Oct 2019
TL;DR: This research has examined a popular, supervised machine learning technique called, SVM (support vector machine) with a heterogeneous data set of six categories of documents related to property, which obtained an accuracy of 88.06% in classifying over 988 test documents.
Abstract: This research has been performed, keeping a real-time application of document (multi-page, varying length, scanned image-based) classification in mind. History of property title is captured in various documents, recorded against the said property in all the countries across the world. Information of the property, starting from ownership to the conveyance, mortgage, refinance etc. are buried under these documents. This is by far a human driven process to manage these digitized documents. Categorization of the documents is the primary step to automate the management of these documents and intelligent retrieval of information without or minimal human intervention. In this research, we have examined a popular, supervised machine learning technique called, SVM (support vector machine) with a heterogeneous data set of six categories of documents related to property. The model obtained an accuracy of 88.06% in classifying over 988 test documents.

10 citations

Journal ArticleDOI
30 Jul 2021-PeerJ
TL;DR: In this paper, a biometric authentication scheme is proposed for the requested users to give access permission in a cloud-distributed environment and, at the same time, alleviate data redundancy.
Abstract: Cloud computing is one of the evolving fields of technology, which allows storage, access of data, programs, and their execution over the internet with offering a variety of information related services. With cloud information services, it is essential for information to be saved securely and to be distributed safely across numerous users. Cloud information storage has suffered from issues related to information integrity, data security, and information access by unauthenticated users. The distribution and storage of data among several users are highly scalable and cost-efficient but results in data redundancy and security issues. In this article, a biometric authentication scheme is proposed for the requested users to give access permission in a cloud-distributed environment and, at the same time, alleviate data redundancy. To achieve this, a cryptographic technique is used by service providers to generate the bio-key for authentication, which will be accessible only to authenticated users. A Gabor filter with distributed security and encryption using XOR operations is used to generate the proposed bio-key (biometric generated key) and avoid data deduplication in the cloud, ensuring avoidance of data redundancy and security. The proposed method is compared with existing algorithms, such as convergent encryption (CE), leakage resilient (LR), randomized convergent encryption (RCE), secure de-duplication scheme (SDS), to evaluate the de-duplication performance. Our comparative analysis shows that our proposed scheme results in smaller computation and communication costs than existing schemes.

10 citations

Journal ArticleDOI
Geejo Francis1
TL;DR: Armed Forced Special Powers Act (AFSPA) as discussed by the authors has been criticised for human rights violations in the past few years and there has been a growing cry for the withdrawal of the act such as exposure of the army officials to any acts committed by them being termed as violation of human rights and a legal suit can be initiated.
Abstract: Armed Forced Special Powers Act was drafted in the year 1958 and as the title refers, provides special powers to the armed forces of the Indian union in areas where the central government may notify as disturbed. Presently the act applies to the north-eastern states of Arunachal Pradesh, Ssam, Manipur, Eghalaya, Izoram, Agaland and Tripura. At the wake of rising insurgencies in the state of Jammu and Kashmir during the 1980s the act was extended and applied in the state full fledged. The history of the original idea behind this act dates back to the colonial period when the British wanted an effective tool to control acts against the British Raj specially the quit India movement. The same model has been applied in this act to control insurgencies and therefore avoid secession of any state from these disturbed areas. Though the human rights violations are the only highlighted issues regarding the act, there has not been much mention on the flip side to the growing cry for the withdrawal of the act such as exposure of the army officials to any acts committed by them being termed as violation of human rights and a legal suit can be initiated and no army unit will work in a condition where there is no legal protection for its personnel and the worst case scenario being a state of anarchy prevailing in these states where the army refuses to fight. So a balance of convenience for both the people in these areas and also the army personnel should be maintained through a less repressive act. Getting into the details of the act, it provides for any army personnel posted in a disturbed area to:1. "Fire upon or otherwise use force, even to the causing of death, against any person who is acting in contravention of any law" against "assembly of five or more persons" or possession of deadly weapons.2. To arrest without a warrant and with the use of "necessary" force anyone who has committed certain offenses or is suspected of having done so. 3. To enter and search any premise in order to make such arrests.4. No legal consequences will be met by these officers who act under the law.5. For an area to be declared disturbed there must be a deterioration of law and order situation in the area and the governor has the power to request the help of the central government to assist the state in maintaining it. Now the power to determine a disturbed area is also vested with the central government.As a result of increasing pressure by the United Nations and protests carried out by local activists the Prime Minister has acknowledged that there are some 'legitimate grievances' against the act and assured that it will be surely dealt by the government. Upon this a five member committee headed by former justice Jeevan Reddy was constituted with a mandate of making recommendations to amend the provisions of the act to meet the government’s obligation of preserving human rights or repeal the act and bring in a new act with the above mentioned feature which it acknowledged the present act lacked. The committee did come up with the recommendation to repeal the act but without mentioning any substantial benefits for the people. The government till now have not acted on the recommendations and it was also made clear that it had no intention on replacing or diluting Armed Forces Special Powers Act, 1958, the act since an army unit cannot work under circumstances where its prone to legal action. It is also to be noted that the committee recognized that the act has been viewed as a symbol of repression by the union government. In numerous proceedings the courts have said that just because a statute has been abused by the officials under the act and it does not mean that the act should be repealed based only on that and the same applies to AFSPA. But the central government is slowly moving towards handing over the security issues of these states to locally raised forces. But it is uncertain how repressive will be their own security forces against them when it comes to eradicating cancerous insurgencies in the region.

10 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202371
2022172
2021795
2020479
2019360
2018239