H∞ control for networked systems with random communication delays

Copyright [2006] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.This note is concerned with a new controller design problem for networked systems with random communication delays. Two kinds of random delays are simultaneously considered: i) from the controller to the plant, and ii) from the sensor to the controller, via a limited bandwidth communication channel. The random delays are modeled as a linear function of the stochastic variable satisfying Bernoulli random binary distribution. The observer-based controller is designed to exponentially stabilize the networked system in the sense of mean square, and also achieve the prescribed H∞ disturbance attenuation level. The addressed controller design problem is transformed to an auxiliary convex optimization problem, which can be solved by a linear matrix inequality (LMI) approach. An illustrative example is provided to show the applicability of the proposed method

Robust H∞ control with missing measurements and time delays

Copyright [2007] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.In this technical note, the robust control problem is investigated for a class of stochastic uncertain discrete time-delay systems with missing measurements. The parameter uncertainties enter into the state matrices, and the missing measurements are described by a binary switching sequence satisfying a conditional probability distribution. The purpose of the problem is to design a full-order dynamic feedback controller such that, for all possible missing observations and admissible parameter uncertainties, the closed-loop system is asymptotically mean-square stable and satisfies the prescribed performance constraint. Delay-dependent conditions are derived under which the desired solution exists, and the controller parameters are designed by solving a linear matrix inequality (LMI). A numerical example is provided to illustrate the usefulness of the proposed design method

The Strategic Adaptation of Chinese-Manadonese in the Reform Era

This article is a further discussion of previous research which is a pilot project to observe patterns of cultural interaction within the Chinese community in Indonesia as a part of a project to understand the phenomenon of the multicultural society during the New Order Era. The specific target of this research is to study the socio-cultural interactions within the Chinese community in Manado during the Reform Era (2000-2014). This research aims to study the strategic adaptation of the Chinese in Manado, by analysing the obstacles and opportunities in their socio-cultural interaction with the locals. Using data from field research and literature studies, this qualitative research applies an ethnographic approach by observing various actions in their socio-cultural interactions

Tahapan Partisipasi Masyarakat Dalam Program Pembangunan Infrastruktur Perdesaan (PPIP) Di Desa Dungaliyo Kecamatan Dungaliyo Kabupaten Gorontalo

Ketidakpekaan pemerintah terhadap aspirasi masyarakat serta minimnya partisipasi masyarakat dalam proses pembangunan tersebut, dapat mengakibatkan masyarakat kurang merasa memiliki (sense of belonging) terhadap hasil-hasil pembangunan, bahkan lebih lanjut menimbulkan akibat yang fatal dalam arti politis, yaitu memunculkan sikap apatis, frustasi, kecemburuan sosial dan ketidakpercayaan kepada pemerintah, dimana pada puncaknya sering menimbulkan ketegangan yang serius antara pemerintah dan rakyat, yang terlihat dari banyaknya contoh kasus yang menunjukkan masyarakat menentang upaya pembangunan yang dilakukan pemerintah, seperti: 1) Program Pembangunan Infrastruktur Perdesaan (PPIP) di Desa Dungaliyo telah memberikan ruang bagi masyarakat untuk berkreasi melalui prinsip PPIP yakni Dari, Oleh dan Untuk Masyarakat, 2) Kehadiran masyarakat dalam tahapan perencanaan lebih berfungsi sebagai pendengar, 3) Kendala yang ditemukan adalah tingkat pendidikan masyarakat penerima, belum terciptanya suasana dan kondisi yang mendukung bagi partisipasi masyarakat, kejenuhan akibat proses yang panjang. Sehingga perlu proses sosialisasi yang lebih mendalam bagi masyarakat, sehingga masyarakat lebih dapat menemukan atau mengenali masalah berdasarkan pada kebutuhan masyarakat, 4) Para elit desa dan pelaku PPIP harus memberikan pemahaman dan bimbingan secara kontinyu dalam setiap kesempatan kepada masyarakat, dan 5) Hendaknya senantiasa memperhatikan kondisi sosial masyarakat setempat misalnya: memilih waktu yang tepat untuk menyelenggarakan forum-forum musyawarah

Pengaruh Fasilitas Belajar terhadap Hasil Belajar Siswa di Sman 1 Teluk Kuantan Kecamatan Kuantan Tengah Kabupaten Kuantan Singingi

Abstrack : The objectives of this research were to know the effect of learning facilities that used by student of class X, dan XI IPS in SMAN 1 Teluk Kuantan Kecamatan Kuantan Tengah Kabupaten Kuantan Singingi. The population of this research was the class X dan XI IPS SMAN 1 Teluk Kuantan amount 209 people and the sample amount 137 people. The collected data used questionnaire and documentation. Data analysis of this research used simle linier regression. Research result based on simple linier regression showed that the using of learning facilities influence on student learning outcomes of class X dan XI IPS in SMAN 1 Teluk Kuantan this can be seen from a constant value (a) of 46,000 and the value coefisien regression (b) of 0,351 with a regresiion equation 46,000 + 0,351. According the calculation of R (R squer change) obtained a value of 0,392. It means that the contribution of the influence of the use learning facilities on learning outcomes by 39,2%

Analisis Efektivitas Pengelolaan Piutang PT Suzuki Finance Indonesia (Sfi) Pekanbaru

Receivables arise because of the system of credit sales. Accounts receivable is an asset that is quite material. Therefore, it is necessary that an effective management of accounts receivable and efficiently so that the amount of funds invested in the accounts in accordance with the level of ability of the company so as not to interrupt the flow of cash. In the end, receivables management implemented the company will look at financial ratios pertaining to receivables acquired. PT Suzuki Finance Indonesia (SFI) Pekanbaru is a leasing company engaged in official financing for the brand Suzuki motorcycle. This study aims to measure how effective the company in managing its resources. The method used is quantitative descriptive analysis method, to get a clearer picture and detailed based on the data and information obtained. The data used is secondary data, sales data of credit, consumer finance data and the data of bad debts of the company. The results showed PT Suzuki Finance Indonesia (SFI) Pekanbaru is still not optimal in managing its accounts receivable. PT SFI Branch Pekanbaru should make improvements or changes to the strategy in collecting accounts receivable in order to collect the receivable is less than the maturity and reduce the amount of bad debts of the company