scholarly journals Effect of Noise Intensity of Aviation Activities on Student Learning Concentrations

2020 ◽  
Vol 3 (2) ◽  
pp. 47
Author(s):  
Remigius Robinson ◽  
Pujianti Bejahida Donuata ◽  
Agustinus Angelaus Ete ◽  
Muhamad Epi Rusdin
Keyword(s):  
Elementary School ◽  
Student Learning ◽  
Noise Intensity ◽  
Linear Regression Analysis ◽  
Threshold Value ◽  
Sound Level ◽  
Flight Activity ◽  
Learning Activities ◽  
Intensity Level ◽  
Level Meter

This study aims to determine the effect of flight activity noise intensity on student learning concentration. This study involved 48 students (male = 24 and female = 24) who were randomly selected in the Islamic elementary school Waioti, Maumere. The intensity of flight activity noise during classroom learning activities is measured using a Sound Level Meter (SLM), and students' concentration levels were measured using a 5-level Likert scale learning concentration questionnaire. The effect of flight noise intensity on student learning concentration was determined using linear regression analysis. The results showed that the noise level due to flight activities in the Waioti Islamic Elementary School was 58.92 dB, exceeding the set threshold value. The intensity level of students' learning concentration disorders reached 71.43%, including frequent disturbance. The level of flight activity noise significantly affects student learning concentration with the regression model: Y = 49.972 + 0.834X with R2 of 0.635.

scholarly journals Perbaikan Tingkat Kebisingan pada Ruang Produksi Yessy’s Collection dengan Pendekatan Ergonomi

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Afgan Suffan Aviv ◽  
Bambang Suhardi ◽  
Pringgo Widyo Laksono
Keyword(s):  
Work Environment ◽  
Noise Level ◽  
Threshold Value ◽  
Sound Level ◽  
Physical Work ◽  
Level Measurement ◽  
Measurement Results ◽  
Physical Work Environment ◽  
Level Meter ◽  
Physical Environmental Factors

<p><em>Implementation of ergonomics is generally a design or redesign. One of them may include the design of the physical work environment. Ergonomic work environment conditions are provide comfort and security for workers. Physical environmental factors that can affect the comfort and safety of noise level.  A good physical work environment will increase work capability or labor productivity. In a work environment, workload assessment can also be carried out to measure worker conformity and comfort. Workload assessment is carried out simultaneously with measurement of noise level . </em></p><p><em>Whose problematic noise, the industry is located in Tawangsari RT 03 RW 34 Mojosongo, Jebres, Surakarta named Yessy's Collection. Measurement of noise level to improve worker comfort, so that productivity increases. The methode used is measurement using 4 in 1 Environment on sound level meter function illustrated with Software Surfer 11.</em></p><em> The noise level measurement results are below the specified threshold value except at 1 coordinate in swabing station (stasiun penyesekan),that is  at above threshold value. To proposed improvements as noise control is engineering control, administrative control and use of PPE</em>

scholarly journals Tingkat Kebisingan pada Angkutan Umum Jalur Teling-Pusat Kota Manado

e-CliniC ◽  
2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Marlisha C. B. Liono ◽  
Olivia C. P. Pelealu ◽  
Steward K. Mengko
Keyword(s):  
Exposure Time ◽  
Public Transportation ◽  
Threshold Value ◽  
Sound Level ◽  
Sound Level Meter ◽  
Noise Levels ◽  
Cross Sectional ◽  
Level Meter ◽  
Microsoft Office ◽  
Audio System

Abstract: Noise is all unwanted sounds that can cause discomfort feeling or hearing disturb-ance if be exposed for long enough. Moreover, it can disturb the surrounding environment due to the generated noise. In Manado, many public transportation have audio system to play high volume music, therefore, causing noise. This study was aimed to determine the level of noise in public transportation of Teling to Manado downtown track. This was a descriptive and observational study with a cross sectional design. Samples were 100 vehicles of Teling to Manado downtown track. Noise measurement was performed by using a sound level meter. Data were analyzed by using Microsoft Office Excel. The results obtained 56 vehicles with audio systems and 44 vehicles without audio systems. Among 56 vehicles with audio systems, there were 47 vehicles that had noise levels above the noise threshold value which was 86.05-114.15 dB with exposure time about 8-16 hours. Meanwhile, among 44 vehicles without audio system, there were only 2 vehicles that had noise levels above threshold value which was 88.05-91.8 dB with exposure time about 10-12 hours. In conclusion, there were 49% of public vehicles had noise level above the threshold value.Keywords: noise; public transportation Abstrak: Kebisingan adalah semua bunyi yang tidak dikehendaki yang dapat menimbulkan ketidaknyamanan atau gangguan pendengaran jika terpapar lama. Selain itu kebisingan dapat juga mengganggu lingkungan sekitar. Di Kota Manado, banyak angkutan umum yang menggunakan sistem audio untuk memutar musik dengan volume yang tinggi sehingga menimbulkan kebisingan. Penelitian ini bertujuan untuk mengetahui tingkat kebisingan pada angkutan umum jalur Teling-Pusat Kota Manado. Jenis penelitian ialah observasional deskrip-tif dengan desain potong lintang. Sampel berjumlah 100 kendaraan pada jalur Teling-Pusat Kota Manado. Pengukuran kebisingan dilakukan menggunakan alat Sound Level Meter. Data diolah dengan Microsoft Office Excel. Hasil penelitian mendapatkan 56 kendaraan yang menggunakan sistem audio dan 44 kendaraan tidak menggunakan sistem audio. Pada 56 kendaraan yang menggunakan sistem audio terdapat 47 kendaraan dengan tingkat kebisingan di atas nilai ambang batas kebisingan yaitu 86,05-114,15 dB dengan waktu terpapar selama 8-16 jam sedangkan pada 44 kendaraan yang tidak menggunakan sistem audio terdapat 2 kendaraan yang memiliki tingkat kebisingan di atas nilai ambang batas kebisingan yaitu 88,05-91,8 dB dengan waktu terpapar selama 10-12 jam. Simpulan penelitian ini ialah terdapat 49% kendaraan umum memiliki kebisingan di atas nilai ambang batas.Kata kunci: kebisingan, angkutan umum

scholarly journals Spatial Analysis of Noise in Kufa University (Kufa River Campus) using GIS

2020 ◽  
Vol 1 (1) ◽  
pp. 38-45
Author(s):  
Raghad Hussein ◽  
Ahmed Al-Sulttani
Keyword(s):  
Noise Level ◽  
Noise Intensity ◽  
Interpolation Method ◽  
Spline Interpolation ◽  
Internal Noise ◽  
Working Hours ◽  
External Noise ◽  
Sound Level ◽  
Percentile Method ◽  
Level Meter

Noise refers to unwanted sound, which causes great discomfort to the ears, and is usually measured in decibels. Very high levels of sound above 100 dB cause permanent hearing loss. This study deals with effect of noise in the academic areas, University of Kufa, Kufa river campus (Faculty of Urban Planning, Faculty of Law, Faculty of Archeology). Kufa river campus area is exposed to several external noise types. Noise field data have been measured and collected for 98 station points. The noise intensity ratio was measured using the Sound Level Meter at three different times during the working hours in the morning hours (8.30-10.30), at noon (10.30-12.30), and in the afternoon from (12.30-2.30). The data were analyzed using the Excel program (percentile method) to obtain a noise level values at 10%, 50%, and 90% of data after arranging it ascendingly. The equivalent noise level (Leq) is calculate as well. The equivalent noise level data converts to GIS program form mapping and studying the spatial variation of noise intensity using a Spline interpolation method. The results showed that the effect of external noise is much greater than the effect of internal noise. The highest noise intensity at the points near the fence reached 94 decibels, and the lowest noise ratio was in the center of the faculty of Physical Planning, and the points near the green trees reached 45.1 db.

scholarly journals The Effect Of Noise On The Level of Concentration In Wood Cutting Workers In Arjasa District, Jember District

2021 ◽  
Vol 7 (2) ◽  
pp. 90
Author(s):  
Waskito Setiaji ◽  
Adelia Handoko ◽  
Ulfa Elfiah
Keyword(s):  
Noise Intensity ◽  
Concentration Level ◽  
Threshold Value ◽  
Physical Factor ◽  
Cross Sectional Study ◽  
Sound Level ◽  
Observational Research ◽  
Cross Sectional ◽  
Loading And Unloading ◽  
Wood Cutting

Disorders of concentration in workers can cause workplace accidents due to decreased ability to focus attention when working. The annual work accident rate is estimated at 250 million with 1.2 million people dead. One of the causes of disturbances in worker concentration is the physical factor in the form of noise. One of the high intensity noise is found in the wood cutting industry in Arjasa District, Jember. The aim of  this study is to analyze the effect of noise on the concentration level in wood cutting workers in Arjasa District, Jember. This is an analytic observational research with cross sectional study. The respondents amounted to 32 people taken with purposive sampling. The measurement of noise was using a sound level meter. The measurement of concentration level using Trail Making Test (TMT) A and B. Concentration level measurement is done when the respondent has worked for 30 minute. The results of the study showed that the majority of respondents were aged between 25-28 years (28.1%) and had worked less than the same as 2 years (53.1%). The average noise intensity of the wood cutting area was 97.5 dB (A) and the loading and unloading area was 76.2 dB (A). Average noise intensity of the wood cutting area exceeds the noise threshold value. The level of concentration of workers in the wood cutting area is lower than the loading and unloading area workers. The results of data analysis using the independent t test indicate that there are differences in the mean TMT B score: TMT A between respondents who work in noisy and non-noisy environments (p=0,004). There was a noise effect on the concentration level in wood cutting workers in Arjasa District, Jember Regency.  Keywords: Noise, concentration, wood cutting workers

Acoustical Failure Diagnosis of Bush in a Domestic Mixer

2015 ◽  
Vol 766-767 ◽  
pp. 1141-1147
Author(s):  
S. Charles ◽  
D. Joslin Vijaya
Keyword(s):  
Continuous Monitoring ◽  
Threshold Value ◽  
Sound Level ◽  
Failure Diagnosis ◽  
Root Cause ◽  
High Speeds ◽  
Initial Stage ◽  
On Line ◽  
Level Meter

Many of the machines and systems having rotating components are designed for operation at high speeds, and hence, it is obvious that only these elements are damaged initially and becomes the root cause of a defect in any machine. Using on line, continuous monitoring techniques, any defect in a rotating part can be detected at its initial stage itself and the user could be alerted before it leads to a catastrophic failure. In this experimental work of the acoustical failure diagnosis, three domestic mixers, the first one in healthy condition, the next mixer about to fail and the last with completely damaged bush were analyzed, with a Type-1 and Delta ohm HD2010 Model sound level meter (SLM). The acoustical readings of the three mixers were measured and tabulated in decibel, using Delta Ohm Noise Studio software. Graphs were drawn for different sets of readings and by analyzing the graphs of the three mixers, the threshold value of the initiation of the defect was found to be 80 decibel, at which failure starts.

scholarly journals Penggunaan Media Audio Visual dalam Meningkatkan Pemahaman Seni Tari pada Peserta Didik Kelas V SDN Ende 5 Kabupaten Ende

2020 ◽  
Vol 1 (1) ◽  
pp. 77-84
Author(s):  
Antonia Y.W Wea ◽  
Maria Purnama Nduru ◽  
Frumensius B. Dole
Keyword(s):  
Elementary School ◽  
Action Research ◽  
Student Learning ◽  
Descriptive Analysis ◽  
Visual Media ◽  
Student Understanding ◽  
Learning Activities ◽  
Test Analysis ◽  
Qualitative Descriptive ◽  
Collection Methods

The purpose of this research is to define the use of audio-visual media in improving dance understanding in students, to find out the understanding of dance after using audio-visual media. This type of research is a classroom action research (CAR). This research was conducted in a recurring cycle through four stages namely planning, implementing, observing, reflecting. This research was conducted at Ende 5 Elementary School in Ende Regency. The subjects in this study were grade V students, amounting to 28 people. The collection methods used are interviews, observation, documenta   tion, and test. Analysis of the data used in this study is a qualitative descriptive analysis of teacher observation, observation of student learning activities and student understanding of the results. Based on the results of the evaluation of the first cycle with a percentage of mastery comprehension of students 50% with an average of 72.53%, the results of the evaluation of the second cycle with the percentage of completeness of students' understanding 82.14% with an average of 78.67% then the use of audio visual media can improve understanding dance with an increase of 6.14%.

scholarly journals IMPLEMENTASI MODEL KOOPERATIF TIPE JIGSAW DALAM MENINGKATKAN HASIL BELAJAR SISWA TEMA GLOBALISASI SUB TEMA MASYARAKAT ASEAN BEBAS NARKOBA KELAS VI SD 040462 KABANJAHE TAHUN PELAJARAN 2019/2020

JURNAL CURERE ◽  
2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Pelista Br Karo Sekali ◽  
Jainab Jainab
Keyword(s):  
Elementary School ◽  
Action Research ◽  
Student Learning ◽  
Learning Outcomes ◽  
Mastery Learning ◽  
Student Learning Outcomes ◽  
Learning Model ◽  
Class Action ◽  
Learning Activities ◽  
Academic Year

This class action research was carried out applying the Jigsaw Type Learning Model on the Globalization Theme of the Asean Free Narcotics Sub-Class VI Elementary School 040462 Kabanjahe in the academic year 2019/2020. The purpose of this study was to determine the implementation of learning, know the completeness of learning outcomes and to find out the improvement of student learning outcomes. The subjects of this research were class VI totaling 31 people and the object of research was the implementation of the Jigsaw Type learning model. The instruments used were observation sheets and essay tests.Based on the results of the Cycle I research, the implementation of learning activities of teachers is 60% enough criteria and the second cycle is 80% good criteria, the activity of the cycle I students is 66 grades enough and the results of the second cycle research results 85 good criteria. Mastery learning students cycle I 68% or 21 people from 30 students in one class. Cycle II completeness of student learning increased to 90% or 28 people and an increase of up to 5% to implement the Jigsaw Type Learning Model Theme of Globalization of the Asean Free Narcotics Community Class VI Elementary School 040462 Kabanjahe in the academic year 2019/2020.

scholarly journals Pengaruh Kebisingan Terhadap Tekanan Darah dan Nadi pada Pekerja Pabrik Kayu PT. Muroco Jember

2018 ◽  
Vol 17 (2) ◽  
pp. 112
Author(s):  
Wahyu Ikhwan Nanda Mukhlish ◽  
Yohanes Sudarmanto ◽  
Muhammad Hasan
Keyword(s):  
Blood Pressure ◽  
Pulse Rate ◽  
Noise Intensity ◽  
Sound Level ◽  
T Test ◽  
Sound Level Meter ◽  
Cross Sectional ◽  
Before And After ◽  
Level Meter ◽  
Paired T Test

Latar belakang: Kebisingan merupakan bunyi yang memiliki intensitas di atas batas normal dan dapat mengganggu kesehatan pada orang yang terpapar. Paparan kebisingan terjadi dalam proses produksi pada industri pabrik kayu, sehingga pekerja menjadi pihak utama yang terdampak. Dampak yang terjadi utamanya pada sistem kardiovaskular. Penelitian ini bertujuan untuk menganalisis pengaruh kebisingan terhadap tekanan darah dan denyut nadi pada pekerja pabrik kayu PT. Muroco Jember.   Metode: Penelitian ini berjenis analitik observasional dengan desain penelitian cross sectional. Responden penelitian berjumlah 24 orang yang diambil dengan teknik total sampling. Pengukuran kebisingan menggunakan alat sound level meter. Pengumpulan data karakteristik pekerja menggunakan kuesioner. Responden penelitian diukur sebelum dan setelah bekerja, dengan menggunakan sphygmomanometer air raksa untuk tekanan darah dan penghitungan manual denyut nadi pada arteri brachialis. Analisis data menggunakan uji komparasi paired t-test pada level signifikansi 5%.  Hasil: Intensitas kebisingan dari 4 sektor kerja menunjukkan hasil yang beragam. Intensitas kebisingan terendah pada sektor produksi A yaitu 82,9 dB(A), sedangkan tertinggi pada sektor sawmill B yaitu 98,1 dB(A). Sebagian besar responden (66,7%) berusia 29-40 tahun dengan masa kerja responden (62,5%) kurang dari 2 tahun. Sebanyak 91,7% responden tidak memakai APT pada saat bekerja. Berdasarkan uji komparasi paired t-test, didapatkan pengaruh paparan kebisingan akut antara sebelum dan setelah bekerja terhadap tekanan darah sistolik (p= <0,001), diastolik (p=0,049), dan denyut nadi (p=0,020).Simpulan: Terdapat peningkatan yang signifikan terhadap tekanan darah sistolik, diastolik, denyut nadi antara sebelum dan setelah bekerja dalam paparan kebisingan akut pada pekerja pabrik kayu PT. Muroco Jember. Diperlukan penelitian dengan mengendalikan variabel lain yang mengganggu untuk kesempurnaan penelitian selanjutnya. ABSTRACT Title: The Effect of Noise on Blood Pressure and Pulse Rate in Workers at PT. Muroco Jember Wood FactoryBackground: Noise is a sound that has an intensity above the normal limit and may interfere with the health of the exposed person. Exposure to noise often occurs in the production process at the wood processing factory, so that workers become the main person affected. The impact mainly occurs in cardiovascular system. This study aims to analyze the effect of noise on blood pressure and pulse rate in workers at PT. Muroco Jember wood factory.Method: This is an observational analytic research with cross sectional design. The respondents amounted to 24 people taken with total sampling technique. The measurement of noise intensity was using sound level meter. Data collecting of worker characteristics was using questionnaires. Respondents were measured before and after work, using a mercury sphygmomanometer for blood pressure and manual palpation of pulse rate in the brachial artery. Data was analyzed with paired t-test comparative at 5% significance level.Result: The noise intensity of 4 sectors of the factory showed diverse results. The lowest noise intensity is in production sector A, 82.9 dB (A), while the highest is in sawmill B sector, 98.1 dB (A). Most of the respondents (66.7%) were 29-40 years old with respondents working period (62.5%) were less than 2 years. As many as 91.7% of respondents did not use ear protection device while working. Based on paired t-test, there was an effect of acute exposure between before and after working on systolic blood pressure (p < 0,001), diastolic (p = 0.049), and pulse rate (p = 0.020)Conclusion: There was a significant increase in systolic, diastolic blood pressure, and pulse rate between before and after work in an acute noise exposure in worker at PT. Muroco Jember wood factory. Further research is required by controlling other disturbing variables for a better research.

scholarly journals PENGARUH DISIPLIN BELAJAR DAN KINERJA TUGAS RUMAH TERHADAP HASIL BELAJAR FISIKA SISWA KELAS VIII SMP MUHAMMADIYAH 1 PEKALONGAN TAHUN PELAJARAN 2012/2013

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Galih Ricky Utama ◽  
M. Barkah Salim
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Linear Regression Analysis ◽  
Student Learning Outcomes ◽  
Learning Activities ◽  
Significance Level ◽  
Analysis Technique ◽  
Home Learning ◽  
And Performance ◽  
And Task

Discipline is one thing that is important in achieving the maximum target in the learning process . Besides the performance of the task is an effort to instill a deeper concept in a subject matter . With the homework expected of students actively learn and be stimulated to enhance better learning , fostering initiative and are solely responsible bold . Sengganggnya so students use the time for things that support their learning by completing activities that are useful and constructive With discipline and performance of the duties expected student achievement in the field of study of physics can be optimal.                          The purpose of this study was to determine the effect of the discipline of learning and the performance of the duties of the learning outcomes of physics . This type of research is experimental . Collecting data using questionnaires and tests . The research was conducted at SMP Muhammadiyah 1 Pekalongan , randomly selected sample . The data analysis technique used is the calculation of the linear regression analysis . The results showed that the discipline of learning and administration tasks affect student learning outcomes , it is obtained from the results of hypothesis testing on the discipline of learning on learning outcomes in Fhit = 20.32 greater than t table at significance level α = 5 % Fdaf = 4 , 10 . While testing the hypothesis on the performance of the duties of the student learning outcomes obtained with Fdaf value = 48.67 greater than the significance level α = 5 % tdaf = 4.10 . After the authors conducted a study proved that the suspect had a significant influence between disciplines home learning and task performance on learning outcomes , the authors suggest to students to be more disciplined in learning activities , so that the learning outcomes that will be obtained will be better and in accordance with the expected . For teachers to further streamline the tasks given to the students , not just the task of completing a matter of course , but the task of creating a summary and demonstrate concepts learned in class.

scholarly journals Pengaruh Kebisingan terhadap Ambang Pendengaran Karyawan Arena Bermain

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Cintia P. Septianingsih ◽  
Ora Et Labora I. Palandeng ◽  
Olivia C. P. Pelealu
Keyword(s):  
Noise Intensity ◽  
Hearing Threshold ◽  
Sound Level ◽  
P Value ◽  
Fisher Exact Test ◽  
Sound Level Meter ◽  
Design Data ◽  
Exact Test ◽  
Level Meter ◽  
Influence Of Noise

Abstract: Noise at a certain level and time can cause human health problems and environmental discomfort. These conditions occur if the noise intensity exceeds the threshold level related to time and place. This study was aimed to obtain the influence of noise intensity at work to hearing disturbance among the employees of game arenas. This was an analytical study with a cross-sectional design. Data were obtained by questionnaire filling, noise measurement by using a sound level meter, physical examination, and auditory function examination by using audiometry and then were analyzed by using the Fisher exact test. There were three game arenas in this study, as follows: Amazing Zone Star Square Manado, Amazone, and Timezone Manado Town Square. The results showed that there were 18 respondents in this study. The mean noise intensity at the game arenas were 85.5 dBA at Timezone, 89.8 dBA at Amazone, and 85.4 dBA at Amazing Zone. Hearing disturbance was found ian 72% of the total employees. The Fisher exact test showed a p-value of 0.294 (p>0.05) for the influence of noise intensity to hearing disturbance. In conclusion, the noise intensity at the game arenas did not affect the hearing threshold of the game arena employees.Keywords: noise, hearing threshold, playing area employees Abstrak: Kebisingan dalam tingkat dan waktu tertentu dapat menimbulkan gangguan kesehatan manusia dan kenyamanan lingkungan. Hal ini terjadi jika intensitas bising melebihi nilai ambang batas yang ditetapkan berdasarkan waktu dan tempatPenelitian ini bertujuan untuk mendapatkan hubungan antara intensitas kebisingan di tempat kerja dengan gangguan fungsi pendengaran pada karyawan arena bermain. Jenis penelitian ialah analitik dengan desain potong lintang. Data diperoleh melalui pengisian kuisioner, pengukuran kebisingan dengan sound level meter, pemeriksaan fisik, dan pemeriksaan fungsi pendengaran dengan audiometri. Analisis data menggunakan uji Fisher exact. Terdapat 3 arena bermain yang diikutsertakan dalam penelitian ini, yaitu: Amazing Zone Star Square Manado, Amazone, dan Timezone Manado Town Square. Hasil penelitian mendapatkan intensitas kebisingan arena bermain sebagai berikut: Timezone 85,5 dBA, Amazone 89,8 dBA, dan Amazing Zone 85,4 dBA. Gangguan pendengaran didapatkan pada 72% dari total responden. Hasil uji Fisher exact mendapatkan nilai p=0,294 (p>0,05) untuk pengaruh kebisingan terhadap gangguan pendengaran. Simpulan penelitian ini ialah kebisingan di arena bermain tidak memengaruhi ambang pendengaran karyawan arena bermain.Kata kunci: bising, ambang pendengaran, karyawan arena bermain

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