statement of the problem : tooth restorations are exposed to stresses which produce marginal gaps resulting in microleakage. purpose in this study, microleakage of light-cured glass-ionomer and compomer class v restorations was evaluted and compared under cyclic loading materials and methods in this exprimental study, class v cavities were prepared on the buccal surfaces of maxillary premolars ...

background hepatitis c virus (hcv) infection is one the major health concern among the infected transplant patients. considering several complications of the disease in them, pre and post-transplantation studies should be performed for monitoring of the infection, as well as, developing new treatment protocols. objectives the current study was conducted to determine the hepatitis c virus rna le...

measurement of the values of forces in tractor arms is of great importance due to draft of agricultural equipment. these values can be used for testing and evaluation of the agricultural machinery, selection of suitable tractor, etc. the tools which are used for measurement of the forces are called dynamometer. the main objective of the present study was to design and evaluate a load cell for i...

The Supergen HiDEF (Highly Distributed Energy Future) project focuses on possibilities for decentralising five features of energy systems: resources, control, network infrastructure, participation (markets and commercial arrangements) and policy. This paper concentrates on participation, and the practicalities of an ‘active demand side’. It examines four potential means of altering network and ...

Systems for processing continuous monitoring queries over data streams must be adaptive because data streams are often bursty and data characteristics may vary over time. In this chapter, we focus on one particular type of adaptivity: the ability to gracefully degrade performance via "load shedding" (dropping unprocessed tuples to reduce system load) when the demands placed on the system cannot...

Numerous works has been done for load balancing of web servers in grid environment. Reason behinds popularity of grid environment is to allow accessing distributed resources which are located at remote locations. For effective utilization, load must be balanced among all resources. Importance of load balancing is discussed by distinguishing the system between without load balancing and with loa...

The paper examines the cointegration of the daily electric power system load and the weather by a field intelligent system. The daily load has been modelled by dynamic regressions. A "Daily Artificial Dispatcher" thermal intelligent system has been constructed. Time and energy tests have been obtained for this intelligent system. The improvement in the daily load forecast, achieved by this inte...

background: noise is one of the annoying agents in the environment and it is harmful agent in workplaces that its occurrence with work load, there are in many workstations. the aim of this study was to determine the combined effects of exposure to noise and work load on heart rate changes. methods: this cross-sectional study performed on 14 male students into climatic chamber in 2011.the mean ±...