Cloud feedbacks and rapid adjustments to an abrupt quadrupling of CO2 are diagnosed in five CMIP5 models using cloud radiative kernels in combination with cloud top pressureand optical depthpartitioned cloud fractions. Upon CO2 quadrupling, clouds exhibit a rapid reduction in fractional coverage, cloud top pressure, and optical depth, each contributing roughly equally to a positive global mean ...

The advancement of cloud computing has enabled service providers to provide diversity of cloud services to users with different attributes at a range of costs. Finding the suitable service from the increasing numbers of cloud services that satisfy the user requirements such as performance, cost and security has become a big challenge. The variety on services description none uniformed naming co...

Mobile cloud computing (MCC) is just cloud computing in which at least some of the devices like mobiles, PDA etc are involved. This paper drives over several authentication techniques and methods for mobile cloud computing. An analysis of the existing works are carried out. This Paper also analyses the attacks and Issues that occur during authentication in the mobile cloud environment. Security...

QoS (Quality-of-Service) is an important topic in cloud computing. It is very difficult to make a decision on choosing the cloud services depending on QoS requirements. These requirements have to be satisfied by both cloud service providers and cloud users. So, Optimal Service Selection is needed to obtain high quality cloud applications. With the increasing number of Cloud services, Quality-of...

Cloud Computing has created a paradigm shift in software development. Many developers now use the Cloud as an affordable platform on which to deploy business solutions. One outstanding challenge is the integration of different Cloud services (or resources), offered by different Cloud providers, when building a Cloud-oriented business solution. Typically each provider has a different means of de...

In present scenario cloud computing emerges as one of the most powerful computing technology to provide dynamic service on demand on very large scale over the internet. Cloud computing offers various features like scalability, pay on use, using these features giants companies use cloud to store their data, In cloud computing data stores on cloud at remote location and cloud user hopes that his/...

With the rapid development of cloud computing, more and more cloud services are provided to users. Faced with multiple cloud services, how to scientifically predict and assess the performance of cloud service is an imperative task. To cope with the challenge, an prediction scheme via JOGM(1,1) model is proposed based on grey system theory, in which the performance of cloud service is quantified...

Cloud computing has elevated IT to newer limits by offering the market environment data storage and capacity with flexible scalable computing processing power to match elastic demand and supply, whilst reducing capital expenditure. However the opportunity cost of the successful implementation of Cloud computing is to effectively manage the security in the cloud applications. Security consciousn...