College of Engineering, Pune

About: College of Engineering, Pune is a based out in . It is known for research contribution in the topics: Sliding mode control & Control theory. The organization has 4264 authors who have published 3492 publications receiving 19371 citations. The organization is also known as: COEP.

Manifestations of Varying Grading Level in CdSe/ZnSe Core–Shell Nanocrystals

Abstract: Graded interface core–shell nanocrystals (NCs) are being investigated to attain highly luminescent systems and are also anticipated to be “blinking-free” at the single-particle level. In the present work, CdSe/ZnSe-graded core–shell NCs with varying confinement potential profile are studied at the single-particle level. The internal structure of NCs is determined with the aid of optical, structural, and chemical probes. Notably, the radiative lifetime for different nanostructures decays monoexponentially. The variation in the radiative lifetime due to differing internal structure is understood on the basis of recently reported first-principles study on different interfaces of core–shell NCs, in particular attributed to varying overlap of electron–hole wave functions. The single NC measurements reveal that the percentage of nonblinking NCs is higher for slowly varying confinement potential. Statistically suppressed blinking (∼80%) and a single exponential PL decay curve, accompanied by a very narrow (∼30 m...

Fuzzy fault tree analysis: revisited

Abstract: Fault tree analysis is one of the most effective techniques for estimating the frequency of occurrence of hazardous events in probabilistic risk assessment study. The analyst needs to study a multi component system and identifies vulnerable sections of hazardous plant based on formalized procedure. In this sequel, we have made an attempt to demonstrate the effective ness of using fuzzy fault tree formalism over the conventional approach and the concept is termed as Fuzzy Top Event Probability (FTEP). The case study 1 relates to flash vessel in an ammonia tank, while in case study 2, using fuzzy set theory, the FTEP has been estimated for the existing ammonia storage tank in a large fertilizer complex located in Mumbai India. In addition, a new formalism for estimating the possibility of a fuzzy event is presented with application.

Mobile cloud computing: Security threats

Abstract: Within the previous few years, the globe of mobile computing has grown enormously. Devices like PDAs, handhelds and digital cellular phones that started off as gadgets of luxury became a necessity in today's “always-stay-connected” method. To facilitate quality of such devices whereas not disconnection from the network, Mobile scientific discipline came into existence. this permits the mobile node to use 2 scientific discipline addresses: a tough and quick home address and a care-of address that changes at each new purpose of attachment. but with the advantages of Mobile scientific discipline to boot came the disadvantages, the biggest of them being that of security. throughout this paper, we've got a bent to debate a number of the common security threats that mobile scientific discipline networks square measure exposed to what is more as some planned solutions to agitate such threats. The recent years have witnessed an unbelievable growth among the vary of mobile internet users and they would really like for quality support is indispensable for seamless internet property. Mobile scientific discipline may be a top quality support protocol that supports roaming across multiple Access Points whereas not having to re-establish the highest to end affiliation. throughout this paper, we've got a bent to require the position that despite several challenges that Mobile scientific discipline faces, it would sway be the protocol for supporting quality among the longer term. we've got a bent to support our claim by analyzing the factors which will influence the widespread adoption of Mobile scientific discipline which we tend to go any to dialogue the counter claims in a trial to convert the reader that the advantages of Mobile scientific discipline outweighs its disadvantage.