Efficiency application of different technologies cultivation by crops

An Efficiency Comparison of Different Java Technologies

Java and related technologies are very used for distributed applications today. In this moment, there are many Java technologies using the client-server paradigm. Among these, the following are the most important: Common Gateway Interface (CGI) [4,7], Servlets/JSP [1,10,12], JavaSpaces [1,5,6] and Enterprise Java Beans (EJB) [1,2,8]. To choose one of these for solving a problem (to implement a ...

the role of application of dynamic assessment approach in improvement of iranian efl writing performance at different language proficiency levels

the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...

Estimation of cost efficiency for firms in different technologies using data envelopment analysis

Data envelopment analysis (DEA) is a method for evaluating the relative efficiency of a set of firms in a production process. Estimation of cost efficiency is one of the branches of performance evaluation. Cost efficiency evaluates the ability of producing current output with minimum available cost. Now let's assume that there are several groups of firms that operate separately and have differe...

Improved poliovirus d-antigen yields by application of different Vero cell cultivation methods

Vero cells were grown adherent to microcarriers (Cytodex 1; 3 g L(-1)) using animal component free media in stirred-tank type bioreactors. Different strategies for media refreshment, daily media replacement (semi-batch), continuous media replacement (perfusion) and recirculation of media, were compared with batch cultivation. Cell densities increased using a feed strategy from 1×10(6) cells mL(...

Experimental Studies of Cultivation of Certain Vegetable Crops