This paper presents a new HTTP traffic model based on the aggregation concept. The model development, evaluation and application are shown. In addition to the basic HTTP traffic characteristics, the traffic model has an easy and accurate load control. Some examples are provided to present the traffic model usage.

Steel pipes with circular cross-sections are usually used in cooling panels of electric arc furnaces. In the present study pipes with square cross-sections under equivalent conditions were used to obtain more information on the possibility of increasing the heat transfer and cooling efficiency. The results showed increased efficiency of the square pipe compared to the circular cross-section pip...

This paper presents a new HTTP traffic model based on the aggregation concept. The model development, evaluation and application are shown. In addition to the basic HTTP traffic characteristics, the traffic model has an easy and accurate load control. Some examples are provided to present the traffic model usage.

Under unbalanced supply condition low order harmonics will appear at the input and output terminals of the PWM AC to DC converter. Based on the positive and negative sequence components, an unbalanced transfer matrix in terms of the input phase voltages is derived. An on-line method using a neural network (NN) is used to implement this transfer matrix. It is shown that by using an additional lo...

pollution of water and soils by heavy metals is an emerging problem in industrialized countries.the present study was conducted to investigate the heavy metals concentration in water and sedimentsamples from ship breaking sites of sitakunda to assess the potential ecological risk posed by heavy metalusing different methods. heavy metals concentration was analyzed by atomic absorption spectrosco...

The macroscopic load-bearing capability of a composite is directly related to the strain partitioning due to load transfer between the component phases. Using neutron diffraction, the elastic mean phase strains were measured during in-situ loading of a Cu-15 vol pct Mo particulatemetal-matrix composite (MMC) at 25 8C, 300 8C, and 350 8C. The degree of load sharing at each temperature was compar...

liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. in this study, a modified hybrid liquid membrane system is introduced. the setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. n-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...

In this paper, performance analysis of a hybrid photovoltaic-thermal (PV/T) greenhouse air heater and dryer has been carried out. Analytical expressions have been developed for • greenhouse air temperature, instantaneous and overall energy and exergy efficiencies for without load and • instantaneous exergy efficiency with load under forced mode operation. An experimental validation has been car...

results of an evaluation of the impact of agricultural science and technology (as and t) policy system institutions on efficiency and technical change in kenyan and ugandan agriculture are presented here. data envelopment analysis was used to derive efficiency and technical change and logistic regression applied to delineate as and t institutions that induced efficiency and technical progress. ...