H∞ Estimation Approach to Active Noise Control: Theory, Algorithm and Real-Time Implementation

This paper presents an H∞ estimation approach to active control of acoustic noise inside an enclosure. It is shown how H∞ filter theory and algorithm can be effectively applied to active noise control to provide important robustness property. Real-time implementation of the algorithm is performed on Digital Signal Processor. Experimental comparison to conventional FxLMS algorithm for active noise control is presented for both single channel and multichannel cases. While providing some new results, this paper also serves as a brief review on H∞ filter theory and on active noise control

Perkembangan Wayang Alternatif di Bawah Hegemoni Wayang Kulit Purwa

Wayang sebagai suatu produk kreatif sering ditafsirkan secara sempit hanya pada seni pertunjukan wayang Purwa yang dalam rentang evolusi berabad-abad paling menunjukkan kemampuan adaptifnya. Hegemoni seni pewayangan, sebagai salah satu produk kreativitas budaya Jawa paling adiluhung, pada sisi lainnya berdampak negatif pada evolusi kebudayaan Jawa itu sendiri. Proses refinement wayang, sebagai seni adiluhung klasik dalam kantung-kantung budaya ekslusif kraton dalam saat yang sama mendapat, tantangan dari luar yang membuat seni pewayangan menjadi produk budaya populer yang bersifat kitch yang dianggap hanya sekadar hiburan yang tidak bernilai. Kemunculan karya wayang kontemporer dari para seniman Indonesia menandakan adanya gerak perkembangan di dalam usaha menafsirkan, mengeksplorasi, dan mengembangkan seni pewayangan tradisional memasuki medan kesenian yang lebih luas sehingga seni pewayangan tidak menjadi seni yang beku

Model Predictive Control for Linear Complementarity and Extended Linear Complementarity Systems

In this paper, we propose model predictive control method for linear complementarity and extended linear complementarity systems by formulating optimization along prediction horizon as mixed integer quadratic program. Such systems contain interaction between continuous dynamics and discrete event systems, and therefore, can be categorized as hybrid systems. As linear complementarity and extended linear complementarity systems finds applications in different research areas, such as impact mechanical systems, traffic control and process control, this work will contribute to the development of control design method for those areas as well, as shown by three given examples

Mikrostruktur Dan Karakterisasi Sifat Mekanik Lapisan Cr3C2-NiAl-Al2O3 Hasil Deposisi Dengan Menggunakan High Velocity Oxygen Fuel Thermal Spray Coating

Surface coating processing of industrial component with thermal spray coatings have been applied in many industrial fields. Ceramic matrix composite coating which consists of Cr3C2-Al2O3-NiAl had been carried out to obtain layers of material that has superior mechanical properties to enhance component performance. Deposition of CMC with High Velocity Oxygen Fuel (HVOF) thermal spray coating has been employed. This study aims to determine the effect of powder particle size on the microstructure, surface roughness and hardness of the layer, by varying the NiAl powder particle size. Test results show NiAl powder particle size has an influence on the mechanical properties of CMC coating. Hardness of coating increases and surface roughness values of coating decrease with smaller NiAl particle size

Meningkatkan Kemampuan Penalaran Dan Prestasi Matematika Dengan Pendekatan Konstruktivisme Pada Siswa Sekolah Menengah Atas

The research aims are to know (1) the effect of learning approach toward mathematics echievement, (2) the effect of reasoning level student\u27s toward mathematics echievement, and (3) intraction between learning approach and reasoning level student\u27s toward mathematics echievement. The research method that be used is experiment research. Collecting data is conducted by reasoning test and echievement mathematics test. The research is experimented at Senior High School number 1 Kayuagung. Population of research is all student at tenth class grade that involve 7 class. The sample are class X.A that involve 31 student as experiment class and X.B that involve 31 student as control class. The research show that the Anova two way for approach learning is obtained F hitung = 15,982 and Ftabel=4,02, so F hitung > F tabel, or the mathematics echievement student that be following at constructivism approach is better than at conventional approach. The anova two way for level reasoning student\u27s is obtained F hitung = 39,489 and Ftabel=4,02, so Fhitung> F tabel, or The students that have high level reasoning is better than the students that have low level reasoning. The analysis of two way Anova for interaction between the approach learning and the level reasoning student\u27s is obtained F hitung = 0,265 and Ftabel=4,02, so F hitung < Ftabel, or there isn\u27t interaction between learning approach and the level reasoning student\u27s to reach mathematics echievement

Hubungan Antara Hasil Pemeriksaan Darah Lengkap Dengan Derajat Klinik Infeksi Dengue Pada Pasien Dewasa Di Rsup Dr. Kariadi Semarang

Background: Complete blood count which is usually done to screen patients suspected dengue infection is through the examination including platelet count, leukocyte count, hematocrit, and hemoglobin levels. The existence of an exact value of the result of blood test for each grade of dengue infection is expected to greatly assist medical officers in order to more easily classify and manage patients based on the clinical grade.Aim: To determine the correlation between platelet count, leukocyte count, hematocrit, and hemoglobin levels with clinical dengue grade infection.Methods: This was retrospective observational analytic research with cross sectional approach. Samples were taken from medical records of patients admitted to adult dengue infection in Dr. Kariadi Hospital. Data that taken from medical records were age, sex, platelet count, leukocyte count, hematocrit, hemoglobin levels, and the degree of dengue infection according to WHO 2009 criteria. The statistical analysis used descriptive analysis and hypothesis test by using Spearman correlation with SPSS for Windows 18.Results: 114 adult dengue infection patients were included in this research. The analysis by Spearman correlation test found a significant weak negative correlation between platelet count with clinical dengue grade infection (p<0.001 ; r=-0.341), a significant weak positive correlation between leukocyte count with clinical dengue grade infection (p=0.033 ; r=0.2), there was no significant correlation between hematocrit with clinical dengue grade infection (p=0.606 ; r=0.049), and there was no significant correlation between hemoglobin levels with clinical dengue grade infection (p=0.759 ; r=0.029).Conclusions: There was a significant correlation between platelet count and leukocyte count with clinical dengue grade infection, so that platelet count and leukocyte count may be considered to help determine the clinical grade of dengue infection. There was no significant correlation between hematocrit and hemoglobin levels with clinical dengue grade infection

Buku Cerita Bergambar Kisah 12 Murid Yesus Dengan Pendekatan Interaktif Untuk Anak Usia 5-7 Tahun

Perancangan ini dibuat karena kurangnya keinginan anak-anak untuk mempelajari dan mengenal lebih dalam kisah-kisah yang ada di dalam Alkitab. Tujuan dari perancangan ini agar memudahkan anak-anak untuk mengerti kisah yang ada di dalam Alkitab dengan menggunakan media-media pendukung seperti alat peraga sebagai media interaktif dan sarana pembelajaran yang tidak membuat anak-anak merasa cepat bosan. Perancangan ini menggunakan media peraga berupa boneka tangan yang bertujuan agar anak-anak juga dapat berperan dalam kisah yang ada di dalam buku perancangan ini