aditya nugraha

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Didik Djoko Susilo

Sebelas Maret University

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University of Brawijaya

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Papers by aditya nugraha

Sensor PVDF Dengan Polarisasi Permukaan Sebagai Pendeteksi Gaya Potong Pada Mesin Gurdi

Jurnal Ilmiah Ilmu dan Teknologi Rekayasa, 2020

PVDF sensor is a sensor that is often used to measure force, strain, vibration and heat. In this ... more PVDF sensor is a sensor that is often used to measure force, strain, vibration and heat. In this study, PVDF sensors with surface polarization are used to detect cutting forces on the machine. The PVDF sensor that has been polarized on the surface is placed in the chuck part of the engine. Measuring instrumen for testing and calibrating PVDF sensors is oscilloscope with increased loading and reduced axial and tangential directions. After the calibration process, the PVDF sensor was used to measure cutting force on drilling machine, and then the results were compared with the PCB piezotronics force sensor. The PVDF sensor output signal is measured and studied for its voltage using an oscilloscope, where the output signal is compared to the weight given to the PVDF sensor. From the results of these tests indicate that the maximum deviation in axial loading is 0.32V while the tangential loading is 0.31VKeywords. PVDF sensor, Surface polarization, Drilling machine, Cutting force

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POLA KOMUNIKASI KELUARGA MASYARAKAT ADAT DALAM MENANAMKAN NILAI KEARIFAN LOKAL : Studi Kasus pada Masyarakat Kampung Adat Cireundeu Kota Cimahi

Penelitian ini dilakukan untuk mengetahui bagaimana pola komunikasi keluarga masyarakat adat dala... more Penelitian ini dilakukan untuk mengetahui bagaimana pola komunikasi keluarga masyarakat adat dalam upaya menanamkan nilai-nilai kearifan lokal kepada anak yang dilakukan oleh keluarga Kampung Adat Cireundeu. Penelitian ini penting dilakukan karena bagaimana masyarakat adat mampu mempertahankan dan menanamkan nilai-nilai kearifan lokal kepada anaknya sebagai generasi penerus di era globalisasi saat ini. Teori yang digunakan dalam penelitian ini ialah Teori Pola Komunikasi Keluarga dari Devito (1986) dan Teori Sistem Keluarga dari Murray Bowen (1950). Desain penelitian yang dilakukan dalam penelitian ini adalah pendekatan kualitatif dengan metode penelitian studi kasus. Subjek penelitian ini ialah keluarga masyarakat adat Cireundeu. Data penelitian menunjukan bahwa keluarga masyarakat adat Cireundeu sampai saat ini masih mampu mempertahankan dan menanamkan nilai-nilai kearifan lokal secara turun-temurun kepada anaknya sebagai generasi berikutnya. Terdapat faktor persamaan, keterbukaan...

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Kajian Kuat Tekan, Kuat Tarik, Kuat Lentur Dan Redaman Bunyi Pada Panel Dinding Beton Ringan Dengan Agregat Limbah Plastik Pet

Perkembangan dalam dunia konstruksi selalu mengalami peningkatan, baik dari segi mutu, efisiensi ... more Perkembangan dalam dunia konstruksi selalu mengalami peningkatan, baik dari segi mutu, efisiensi dan produktivitas. Beton ringan kini semakin dikembangkan karena akan mereduksi beban sendiri yang cukup besar. Untuk itu dalam penelitian ini agregat kasar kerikil akan digantikan dengan agregat buatan yang terbuat dari limbah botol plastik minuman jenis PET. Dipilih plastik jenis PET karena plastik jenis ini sangat banyak ditemukan sebagai sampah. Satu lagi yang dapat dilihat langsung dari limbah ini adalah berat yang ringan dan tidak mudah berubah bentuk. Penelitian ini bertujuan untuk mengetahui nilai kuat tekan, kuat tarik, kuat lentur, dan redaman bunyi dari beton dengan agregat kasar limbah plastik PET dalam aplikasinya sebagai beton nonstruktural yaitu panel dinding, sehingga dapat diketahui apakah beton modifikasi ini layak untuk digunakan atau tidak. Penelitian ini menggunakan metode eksperimen di laboratorium. Dengan presentasi penggantian agregat kasar adalah 100%, sehingga a...

Fast Multichannel Source Separation Based on Jointly Diagonalizable Spatial Covariance Matrices

2019 27th European Signal Processing Conference (EUSIPCO), 2019

This paper describes a versatile method that accelerates multichannel source separation methods b... more This paper describes a versatile method that accelerates multichannel source separation methods based on full-rank spatial modeling. A popular approach to multichannel source separation is to integrate a spatial model with a source model for estimating the spatial covariance matrices (SCMs) and power spectral densities (PSDs) of each sound source in the time-frequency domain. One of the most successful examples of this approach is multichannel nonnegative matrix factorization (MNMF) based on a full-rank spatial model and a low-rank source model. MNMF, however, is computationally expensive and often works poorly due to the difficulty of estimating the unconstrained full-rank SCMs. Instead of restricting the SCMs to rank-1 matrices with the severe loss of the spatial modeling ability as in independent low-rank matrix analysis (ILRMA), we restrict the SCMs of each frequency bin to jointly-diagonalizable but still full-rank matrices. For such a fast version of MNMF, we propose a computationally-efficient and convergence-guaranteed algorithm that is similar in form to that of ILRMA. Similarly, we propose a fast version of a stateof-the-art speech enhancement method based on a deep speech model and a low-rank noise model. Experimental results showed that the fast versions of MNMF and the deep speech enhancement method were several times faster and performed even better than the original versions of those methods, respectively.

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Unsupervised Robust Speech Enhancement Based on Alpha-Stable Fast Multichannel Nonnegative Matrix Factorization

Interspeech 2020, 2020

This paper describes multichannel speech enhancement based on a probabilistic model of complex so... more This paper describes multichannel speech enhancement based on a probabilistic model of complex source spectrograms for improving the intelligibility of speech corrupted by undesired noise. The univariate complex Gaussian model with the reproductive property supports the additivity of source complex spectrograms and forms the theoretical basis of nonnegative matrix factorization (NMF). Multichannel NMF (MNMF) is an extension of NMF based on the multivariate complex Gaussian model with spatial covariance matrices (SCMs), and its state-of-theart variant called FastMNMF with jointly-diagonalizable SCMs achieves faster decomposition based on the univariate Gaussian model in the transformed domain where all time-frequencychannel elements are independent. Although a heavy-tailed extension of FastMNMF has been proposed to improve the robustness against impulsive noise, the source additivity has never been considered. The multivariate α-stable distribution does not have the reproductive property for the shape matrix parameter. This paper, therefore, proposes a heavy-tailed extension called α-stable FastMNMF which works in the transformed domain to use a univariate complex α-stable model, satisfying the reproductive property for any tail lightness parameter α and allowing the α-fractional Wiener filtering based on the element-wise source additivity. The experimental results show that α-stable FastMNMF with α = 1.8 significantly outperforms Gaussian FastMNMF (α = 2).

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English � Indonesian Translation Methods in the Short Story �a Blunder� by Anton Chekhov

Indonesian EFL Journal, Sep 12, 2017

This study contains analysis of translation method in the short story "A Blunder" by Anton Chekho... more This study contains analysis of translation method in the short story "A Blunder" by Anton Chekhov which is translated into Indonesian by students as the participants of this research. In translation analysis processes, the researcher used theory of translation method based on Newmark Theory. While to find out the equivalence in the translation, the researcher used Baker Theory. The researcher thought that there are a lot of variations methods appear in the results of translation, so he wants to know the kinds of equivalence translation used by the participants to make the target language (TL) more comprehensible. Qualitative descriptive method that includes observation and document analysis was used in this research. Here, the result of document analysis were consulted to the translation and literature expertise to check the result of the analysis. As the conclusion, the researcher finds 6 methods used by the participants to render the short story "A Blunder" into the target language (TL). Besides, the researcher finds two kinds of translation equivalence in the translations.

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HUBUNGAN PROGRAM KESEJAHTERAAN KARYAWAN DENGAN MOTIVASI KERJA KARYAWAN BADAN KOORDINASI KELUARGA BERENCANA NASIONAL (BKKBN) PROVINSI JAWA BARAT (Studi kasus pada BKKBN di Jl.Surapati No.122 Bandung)

Studi Kuat Tekan Tanah Pasir Berlempung yang Distabilisasi Menggunakan Abu Gunung Merapi

Jurnal Rekayasa, Jan 8, 2013

The tested soil sample in this research is sandy clay soil. The variations of procentage are 5%, ... more The tested soil sample in this research is sandy clay soil. The variations of procentage are 5%, 10%, 15%, and 20%. Each of samples are cured in 14 days. Based on the physical soil properties investigation, AASHTO classified the soil sample into A-2-6 group (sandy clay soil), while USCS classified the soil sample as soil with rough granules into SC group. The results of the research in the laboratory showed that the additive material using Merapi volcanic ash could improve the physical and mechanical properties of organic clay soil. In the physical test such as unit weight and Atterberg limit tests, the values decreased after it, while the mechanical test of Merapi ash sample showed it could improve the value of unconfined compression strength soil. Based on the result of unconfined compression stregth test, soil which is stabilized using the ash of Mount Merapi increase until the optimum ash content about 20%.

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THE USE OF RECIPROCAL TEACHING TO IMPROVESTUDENTS’ READING COMPREHENSION(A Classroom Action Research at the Eighth Grade ofSMP Negeri 19 Surakarta in 2007/2008 Academic Year)

This study is based on the problem that is the low reading comprehension of the eighth grade stud... more This study is based on the problem that is the low reading comprehension of the eighth grade students of SMP Negeri 19 Surakarta in the academic year of 2007/2008. It is focused to find out whether reciprocal technique can improve students' reading comprehension or not and also identifies the phenomena taking place when teaching students' reading comprehension by using reciprocal teaching. This classroom action research was conducted in class VIII A, from March to June 2008. The subject of this research is the students of class VIII A of SMP Negeri 19 Surakarta, in the academic year of 2007/2008. This class consists of 40 students, 16 boys and 24 girls. In this action research, the researcher is as the teacher in teaching learning process. This research used reciprocal teaching technique. The procedure of this research consists of identification, planning, action, observation, and reflection. The research is conducted in two cycles. The first cycle consists of two meetings and so does the second cycle. In collecting the data, the researcher uses qualitative and quantitative technique. The qualitative data are obtained from observation, notes, interview, and photograph. The quantitative data are supported by quantitative data that are the mean score of students' pre test and post test. The improvement of students' score can be seen from the differences between pre-test and post-test.The mean score of pre test improves from 5.6 to 5.8 in post test 1 and it also improves to 7.3 in post-test 2. The test result shows that there is an improvement of the students' reading comprehension after the researcher conducted the research. The results of this research are teaching reading comprehension by using reciprocal teaching technique can improve students' reading comprehension, increase their vocabulary, encourage them to be active, and enhance their cooperative skills. Through this technique, the students are involved in the teaching learning process. They can share their knowledge and help each other in understanding the lesson material. The students not only learn from the teacher's explanation, but also learn from their friends who also learn the same thing. This technique provides opportunities for the students to understand the lesson material more by asking other group member without being ashamed and afraid, since the students are usually afraid to ask the difficulties to the teacher. Therefore, the teaching learning process can run well perpustakaan.uns.ac.id digilib.uns.ac.id commit to user v MOTTO And whosoever fears Allah and keeps his duty to Him. He will make his matter easy for him. QS. At Talaq: 4 The key to realizing a dream is to focus not on success but significance-and then even the small steps and little victories along your path will take on greater meaning.

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Analisis Bangunan Pelimpah Tipe Gergaji Bendung Ciwadas (Karawang Jawa Barat)

SKRIPSI S-1 TEKNIK SIPIL, 2010

Bendung dan pelimpah jenis gergaji telah dibangun dan dioperasikan secara luas di Indonesia, deng... more

Analisa Dan Perancangan Sistem Kompetisi Futsal

Kompetisi Futsal dikalangan kaum milenial kota Bekasi kini semakin di minati, sejak pemerintah be... more Kompetisi Futsal dikalangan kaum milenial kota Bekasi kini semakin di minati, sejak pemerintah bekerja sama dengan komunitas supporter klub sepakbola mengadakan pertandingan futsal setiap tahunnya. Menjadikan kalangan muda putra dan putri khususnya daerah kota Bekasi dapat meningkatkan minat dan bakat kearah yang lebih positif, serta mendorong mereka menjadi penerus bangsa yang produktif dan kreatif dimasa depan. Mengasah keahlian dalam bermain futsal tidaklah cukup hanya didalam lingkup internal sekolah saja , akan tetapi perlu adanya sparing antar sekolah yang bersifat rutin untuk melatih kemampuan bermainnya, masalah yang terjadi saat ini adalah mencari lawan sparing antar sekolah yang sulit didapat , karena keterbatasan relasi pertemanan antar sekolah membuat sulitnya mendapatkan lawan tanding, Masalah yang kedua adalah informasi kompetisi futsal yang disebar luaskan diwebsite penyedia informasi khusus lomba atau kompetisi belum terintegrasi dengan pendaftaran para pelajar yang ...

Sensor PVDF Dengan Polarisasi Permukaan Sebagai Pendeteksi Gaya Potong Pada Mesin Gurdi

Jurnal Ilmiah Ilmu dan Teknologi Rekayasa, 2020

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POLA KOMUNIKASI KELUARGA MASYARAKAT ADAT DALAM MENANAMKAN NILAI KEARIFAN LOKAL : Studi Kasus pada Masyarakat Kampung Adat Cireundeu Kota Cimahi

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Kajian Kuat Tekan, Kuat Tarik, Kuat Lentur Dan Redaman Bunyi Pada Panel Dinding Beton Ringan Dengan Agregat Limbah Plastik Pet

Fast Multichannel Source Separation Based on Jointly Diagonalizable Spatial Covariance Matrices

2019 27th European Signal Processing Conference (EUSIPCO), 2019

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Unsupervised Robust Speech Enhancement Based on Alpha-Stable Fast Multichannel Nonnegative Matrix Factorization

Interspeech 2020, 2020

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English � Indonesian Translation Methods in the Short Story �a Blunder� by Anton Chekhov

Indonesian EFL Journal, Sep 12, 2017

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HUBUNGAN PROGRAM KESEJAHTERAAN KARYAWAN DENGAN MOTIVASI KERJA KARYAWAN BADAN KOORDINASI KELUARGA BERENCANA NASIONAL (BKKBN) PROVINSI JAWA BARAT (Studi kasus pada BKKBN di Jl.Surapati No.122 Bandung)

Studi Kuat Tekan Tanah Pasir Berlempung yang Distabilisasi Menggunakan Abu Gunung Merapi

Jurnal Rekayasa, Jan 8, 2013

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THE USE OF RECIPROCAL TEACHING TO IMPROVESTUDENTS’ READING COMPREHENSION(A Classroom Action Research at the Eighth Grade ofSMP Negeri 19 Surakarta in 2007/2008 Academic Year)

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Analisis Bangunan Pelimpah Tipe Gergaji Bendung Ciwadas (Karawang Jawa Barat)

SKRIPSI S-1 TEKNIK SIPIL, 2010

Bendung dan pelimpah jenis gergaji telah dibangun dan dioperasikan secara luas di Indonesia, deng... more

Analisa Dan Perancangan Sistem Kompetisi Futsal

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