Phase synchronization of instrumental music signals

Signal analysis is one of the finest scientific techniques in communication theory. Some quantitative and qualitative measures describe the pattern of a music signal, vary from one to another. Same musical recital, when played by different instrumentalists, generates different types of music patterns. The reason behind various patterns is the psychoacoustic measures - Dynamics, Timber, Tonality and Rhythm, varies in each time. However, the psycho-acoustic study of the music signals does not reveal any idea about the similarity between the signals. For such cases, study of synchronization of long-term nonlinear dynamics may provide effective results. In this context, phase synchronization (PS) is one of the measures to show synchronization between two non-identical signals. In fact, it is very critical to investigate any other kind of synchronization for experimental condition, because those are completely non identical signals. Also, there exists equivalence between the phases and the distances of the diagonal line in Recurrence plot (RP) of the signals, which is quantifiable by the recurrence quantification measure tau-recurrence rate. This paper considers two nonlinear music signals based on same raga played by two eminent sitar instrumentalists as two non-identical sources. The psycho-acoustic study shows how the Dynamics, Timber, Tonality and Rhythm vary for the two music signals. Then, long term analysis in the form of phase space reconstruction is performed, which reveals the chaotic phase spaces for both the signals. From the RP of both the phase spaces, tau-recurrence rate is calculated. Finally by the correlation of normalized tau-recurrence rate of their 3D phase spaces and the PS of the two music signals has been established. The numerical results well support the analysis

HUBUNGAN ANTARA AKTIVITAS FISIK DENGAN KUALITAS HIDUP PADA LANSIA DI DESA SALURANG KECAMATAN TABUKAN SELATAN TENGAH KABUPATEN KEPULAUAN SANGIHE

Meningkatnya populasi lansia diiringi dengan peningkatan permasalahan dihadapi lansia yang juga berdampak terhadap penurunan kualitas hidup. Penelitian ini bertujuan untuk mengetahui hubungan antara aktivits fisik dengan kualitas hidup lansia di Desa Salurang Kecamatan Tabukan Selatan Tengah Kabupaten Kepulauan Sangihe. Metode penelitian ini adalah survey analitik dengan desain penelitian Cross Sectional dan waktu pelaksanaanya pada bulan Juli sampai Agustus tahun 2020. Populasi dalam penelitian ini yaitu seluruh lansia yang berumur ≥ 60 tahun di Desa Salurang. Teknik dalam mengambil sampel digunakan Total Sampling dengan jumlah sampel 80 responden. Instrumen yang digunakan yaitu WHOQOL dan IPAQ. Analisis data yang digunakan yaiu analisis univariat dan analisis bivariat dengan menggunakan uji statistik Chi Square degan tingkat kepercayaan 95% (α = 0,05). Pada penelitian ini peneliti mendapatkan hasil pada gambaran aktivitas fisik yang lebih banyak terdapat pada kategori aktivitas fisik berat yaitu 71,2% dan ringan yaitu 28,8%. Pada gambaran kualitas hidup berdasarkan domain paling banyak terdapat pada kategori domain hubungan sosial baik yaitu 58,8% kurang 41,2%, dan domain lingkungan baik yaitu 53,8% kurang 46,2% sedangkan pada domain psikologis paling banyak terdapat pada kegori kurang yaitu 51,2% baik 48,8% dan domain fisik kurang yaitu 61,2% baik 38,8%.. Kesimpulan dari penelitian ini adalah terdapat adanya hubungan antara aktivitas fisik dengan kualitas hidup pada lansia di Desa Salurang Kecamatan Tabukan Selatan Tengah Kabupaten Kepulauan Sangihe dengan nilai p < 0,05. Kata Kunci : Kualitas Hidup, Aktivitas Fisik, LansiaABSTRACTThe elderly will continue to increase population. The group of elderly that reviewed by the health aspect will experience a decrease in health status as naturally or due to disease. The study aims to determine the relationship between physical activity and the quality of life on elderly in Salurang Village Tabukan Selatan Tengah District Sangihe Islands Regency. This research method is an analytic survey with Cross Sectional research design and the research was conduct from July to August 2020. The population in this study were all the elderly aged ≥ 60 years in the Salurang Village. The sampling technique that used is Total Sampling with a sample of 80 respondents. The instruments that used are WHOOQOL and IPAQ. The data analysis that used is univariate analysis and bivariate analysis using Chi Square statistic test with a confidence level of 95% (α = 0,05). The results showed that 31 respondents had a good quality of life in the physical domain, 39 respondents had a good quality of life in the psychological domain, 47 respondents had a good quality of life in the social relations domain and 43 respondents had a good quality of life in the environmental domain. The conclusion of this study is that there is a relationship between physical activity and quality of life on the elderly in the Salurang Village Tabukan Selatan Tengah District Sangihe Islands Regency with a p value < 0,05.Keywords : Quality of Life, Physical Activity, The Elderl

Re-appearance of the pairing correlations at finite temperature

Rotational and deformation dependence of isovector and isoscalar pairing correlations at finite temperature are studied in an exactly solvable cranked deformed shell model Hamiltonian. It is shown that isovector pairing correlations, as expected, decrease with increasing deformation and the isoscalar pairing correlations remain constant at temperature, T=0. However, it is observed that at finite temperature both isovector and isoscalar pairing correlations are enhanced with increasing deformation, which contradict the mean-field predictions. It is also demonstrated that the pair correlations, which are quenched at T=0 and high rotational frequency re-appear at finite temperature. The changes in the individual multipole pairing fields as a function of rotation and deformation are analyzed in detail.Comment: 16 pages 6 figure

Pembuatan Website Catalog Pariwisata Kabupaten Toraja Utara

North Toraja Regency is one of the regencies in Indonesia which is actively developing itself as a tourist destination. North Toraja\u27s tourism has its own uniqueness. It offers different types of tourist attractions compared to those of other regencies. However, due to the lack of tourism information, both local and foreign tourists have not considered North Toraja as an attractive tourist destination. Based on the problem described, there is a need to make a catalogue website that aims to give clear and accurate information regarding North Toraja\u27s various tourist spots.Important information such as North Toraja\u27s rich history, tourist spots, public facilities, arts and crafts, and annual traditional activities or events are all provided in this catalogue website. Thus, tourists can easily obtain complete information about North Toraja\u27s tourism. This website was created using programming languages like PHP, JavaScript, and MySQL database.The catalogue website has many features and information such as user profile, map, tourist spots, public facilities, culture, arts, traditional food, events, recommendations, and photo gallery

Feasibility of using ultrasonic technique to measure the blast furnace lining thickness

Blast furnace process has been the most effective way to produce iron for over 200 years.Throughout the years, large efforts have been put on finding ways to increase the productivity and extend the campaign length. The condition of the refractory lining of a blast furnace plays a very important role to determine its campaign length. Many methods have been employed to measure blast furnace lining thickness including radioisotopes, thermal measurement and core-drilling. Temperature measurement is among the most widely used method for on-line monitoring the profile of the blast furnace inner surface, which is based on numerically solving inverse problem using heat transfer models and readings from thermocouple. Optimization methods are applied to obtain the boundary of the domain iteratively, and hence the computation is very expensive and calculation cannot be very accurate. This paper presents the feasibility of using non-invasive ultrasonic technique in bistatic mode to measure the profile of the refractory liner of the hearth region of blast furnace

Non-linear ultrasonic technique to assess fatigue damage in structural steel

A non-linear ultrasonic technique has been used to assess the fatigue damage in low carbon structural steel. The percentage of total harmonic distortion, which is the ratio of the amplitude of 2nd harmonic and the fundamental, has been introduced as the measurement parameter in this paper. It has also been observed that before crack initiation the 2nd harmonic amplitude is comparable to the fundamental. The results have been analysed in light of the dislocation theory for harmonic generation during material degradation