yrammuS 要概94Roberd Saragih95Tjandra AnggraeniReduced Bilinear Control System using H-infinity Balancing(Project 2014)Integrated Pest Management : Effects of Plant Bioinsecticides and Entomopathogenic Fungi Combinations to Insect Pest Anatomy Damage and Their Immune Proteins Content(Project 2014)71Cr(VI)/gram sorben and 0.0028. In the next stage of this research, desorption was done using several type of eluent such as acid and alkaline in various concentration. The eluents used are HNO3 0.1N; 1N; H2SO4 0.1N; 1N; 4N; KOH 0.1N; 1N; NaOH 0.1N; 1N. The results showed that the largest percent desorption was done using H2SO4 4N as much as 78.84% with desorption kinetics follow pseudo-second-order. In this research, We also determining biosorben performance after several desorption phase.In designing control system, it is important to minimize the order of controller since the high order controller is impractical. In addition, designing control by using robust control such as H∞-control yields the high order controller. In this paper we propose a method to obtain the minimum order of bilinear system. Firstly, we transform the bilinear system into the balanced system by using the H∞ balancing. Furthermore, the reduced order bilinear system is obtained by using the balanced truncation and singular perturbation. In the proposed method, the reduced order bilinear system is obtained via process of optimization i.e. to minimize the H∞ -norm from the transfer function from input to output which implies suppressing the magnitude peaks of the frequency response. This problem is solved by using the genetic algorithm. To verify the proposed method, the simulation and numerical calculations is carried out on a nonlinear RC circuit and the results show that proposed method can able to approximate a high order bilinear model from 200-th order to the 1st order better than the existing method.Insects resistance to chemical insecticides are easily found in Indonesia, especially in agricultural sector. To overcome this problem and in order to control the insect pest, more researchs in biological control as a part of Integrated Pest Management (IPM) need to be done. Our previous study indicated that combination of Mirabilis jalapa (botany) bioinsecticides and entomopathogenic fungi was not affected the cellular immune system, but on the other hand, it was affected the humoral immune system. More than that, this combination will increase the number of insect killed. In order to continue our study in applying of the combination of M. jalapa bioinsecticide with entomopathogen to insect pest, we will use fungi as an entomopathogen and the aims of this research are to examine the anatomy damage from time to time and to analyse the inducible immune protein from time to time. Activities will be focus on histological and SEM analysis, also on inducible immune protein analysis through haemagglutination assay and spectrophotometer /electrophoresis. As an insect model, we will use Crocidolomia sp., while the fungi will be Beauveria bassiana. The result of this research will certainly benefit not only for our knowledge and understanding in insect immune system, but also for government in making a policy decission for controlling the insect pest especially in agriculture.
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