دانلود مقاله Advancing toward sustainability goals at the universiy of California, Ivine سال 2014

اختصاصی از فایلکو دانلود مقاله Advancing toward sustainability goals at the universiy of California, Ivine سال 2014 دانلود با لینک مستقیم و پر سرعت .

Advancing toward sustainability goals at the universiy

 of California, Ivine

Brendan Shaffer
Advanced Power and Energy Program
University of California, Irvine
Irvine CA 92697-3550

Brian Tarroja
Advanced Power and Energy Program
University of California, Irvine
Irvine CA 92697-3550

Scott Samuelsen
Advanced Power and Energy Program
University of California, Irvine
Irvine CA 92697-3550

Proceedings of the ASME 2014 8th International Conference on Energy Sustainability
ES2014
June 30-July 2, 2014, Boston, Massachusetts, USA

ABSTRACT

The carbon reduction and sustainability goals of the University of California, Irvine require increased penetrations of intermittent renewables on the campus microgrid. These increased intermittent renewables create operational challenges related to conventional energy resources. To study these operational challenges, a holistic campus resource dispatch model was developed. The campus energy resources consist of a microgrid with ten 12 kV circuits emanating from one substation, 4 MW of solar photovoltaic, a central combined heat and power plant (19 MW), a district heating and cooling system, and an electric chiller-thermal energy storage system that provide electricity, heat, and cooling. The holistic model includes dynamic models of the
combined heat and power (CHP) plant, the electric chiller-thermal energy storage system, and various renewable resources. In addition, models for complimentary technologies were also created to investigate their potential to increase renewable
penetration on the campus microgrid. These include battery energy storage, demand response, and energy efficiency. Simulations with the holistic campus resource model revealed several important conclusions: (1) Regardless of renewable resource type, impacts on the CHP plant remains the same, i.e., increased renewable penetrations create reduced CHP plant capacity factors; (2) Local two axis CPV provides lower costs of electricity than local fixed PV at renewable penetrations below 23% after which local fixed PV provides a lower cost of electricity (3) Introduction of a battery into the campus microgrid achieves higher renewable penetrations and improves the operation of CHP plant; and (4) Electric energy storage does not always prove cost effective (i.e., At low renewable penetrations, electric energy storage is not cost effective; At 17% renewable penetration, electric energy storage begins to become cost effective).

پایان نامه لاتین دکترا2015: Toward secure, trusted, and privacy-enhanced biometrics in the cloud

اختصاصی از فایلکو پایان نامه لاتین دکترا2015: Toward secure, trusted, and privacy-enhanced biometrics in the cloud دانلود با لینک مستقیم و پر سرعت .

 

 به سمت بیومتریک امن، قابل اعتماد، و افزایش حریم خصوصی در ابر

Toward secure, trusted, and privacy-enhanced biometrics in the cloud

Abstract: Biometric technology has been used for decades as a strong method to identify and authenticate individuals. As for its effectiveness and accuracy, biometric technology has gained popularity in a wide range of fields and applications, including government, health care, security, and forensics. However, the use of biometrics has been primarily used in local applications and has not been widely deployed for remote applications due to many challenges in terms of privacy, security, and trust.

The primary goal of this research is to explore how biometrics can be deployed in the cloud and how the strong authentication property of biometrics can be leveraged to improve the security of the cloud, taking into account the challenges faced when using biometrics for remote applications. These challenges include the security of biometric templates, the privacy of users, and the trust for remote biometric operations. The contributions of the dissertation start with an empirical motivational study of the usability and security of passwords as the most commonly used authentication method in the cloud as compared with the privacy-enhanced fingerprint authentication. The dissertation continues by addressing the privacy and trust problems of exchanging biometric data by enhancing the Biocryptographic Key Infrastructure (BKI) to be used as a building block for following proposed methods. The dissertation continues by proposing the trusted and privacy-enhanced biometric web identities, or Trusted-BWI. Trusted-BWI illustrates how biometric systems can be deployed in the cloud in a secure, trusted, and privacy-enhanced manner. Then, as cloud services rely heavily on the Secure Socket Layer (SSL) for network security, we propose the Biocryptographic Secure Socket Layer (BSSL), which leverages the strong authentication property of biometrics to enhance the security and usability of the client-side authentication of SSL. This dissertation is concluded by proposing a secure cloud storage using biometrics, called BioCloud, for enhancing the security and usability of cloud storage systems relying on biocryptographic techniques

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