Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

p-Index From 2019 - 2024

1.817

P-Index

This Author published in this journals

All Journal Progressive Physics Journal Geosains Kutai Basin

Devina Rayzy Perwitasari Sutaji Putri

Program Studi Fisika Universitas Mulawarman

Author-ID : 5802010

Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics

Published : 11 Documents Claim Missing Document

Claim Missing Document

Articles

1 2

Hubungan tingkat intensitas bunyi dengan penurunan daya dengar pekerja Asmar Adhan Ramadhan; Pratiwi Sri Wardani; Devina Rayzy Perwitasari Sutaji Putri
Progressive Physics Journal Vol 2 No 2 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Abstract Noise is unwanted sound that can cause health problems and environmental comfort at a certain level and time. Noise Induced Hearing Loss (NHL) is a type of sensorineural hearing loss caused by exposure to sufficient/loud noise over a long period of time. This study was conducted to determine the effect of noise on the hearing of workers working in the Ground Handling area of Samarinda airport, to determine the noise level received by workers in the Airport Ground Handling Area, and to know the importance of using PPE on the hearing of workers while doing work. The noise measurement method is measuring at predetermined points using a Sound Level Meter. Then, it was continued by measuring the hearing level of workers in a soundproof room alternately using audiometry, then a correlation test was carried out to determine the relationship between the two variables, namely noise and the hearing level of workers. Based on the results of the study, it is known from the results of the average hearing that has been correlated with total noise exposure in the work area, it can be seen that the hearing level of workers is decreasing over time, this is due to the amount of noise exposure received by workers during work activities.

Rancang Bangun Sistem Monitoring Suhu dan Salinias pada Air Laut Azizah Bella Azizah Bella; Devina Rayzy Perwitasari Sutaji Putri; Idris Mandang
Progressive Physics Journal Vol 2 No 1 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Knowing the condition of the waters is very important for the sustainability of aquatic ecosystems. The condition of the waters so as not to have a bad impact on aquatic ecosystems can be known through temperature and salinity parameters. Seawater temperature is the distribution of heat in the ocean caused by the movement of water and other factors. The salinity of seawater is the level of saltiness or the level of salt dissolved in seawater. Temperature can be measured using a thermometer and salinity is measured using a refractometer. However, using these tools requires time, effort, cost, and manual data retrieval processes. Therefore, this research aims to make a temperature and salinity measuring instrument and determine the relationship between Voltage and salinity in the seawater. This research used the method of measuring electrical conductivity (DHL) to determine a change in magnitude. The temperature and salinity design consisted of an Arduino Uno, a YL-38 Module, and copper as an electrode, and a DS18B20 Temperature Sensor. the result of this research shows that has been done, the average error presentation of salinity is 0.00732% and temperature is 0.044 %. Through this research, salinity and the temperature instrument produced using electrodes made of copper and DS18B20 which operate at a Voltage of 4,8 Volts. The obtained a linear graph between stress and salinity. The relationship between voltage and salinity is directly proportional, the higher the salinity of seawater, the greater the output voltage.

Analisis Getaran Whole Body pada Supir Angkutan Umum di Samarinda Puspa Syadariah; Devina Rayzy Perwitasari Sutaji Putri; Pratiwi Sri Wardani; Mislan Mislan; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 3 No 2 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Whole body vibration is vibration that propagates throughout the worker's body from vibration sources in the form of machines, vehicles, and so on. In this paper it is reported the results of research to determine the total value of vibration acceleration on several drivers of the public transport in Samarinda and to analyze the comfort level of the drivers receiving the vibration on their bodies. The components of the vibration acceleration were measured by using a vibration meter type of Svantex 106. The comfort level of the driver in receiving the vibration was assosiated with the scale of comfortable level set by the Ministry of Manpower of the Republic of Indonesia by decree number PER.13/MEN/X/2011. The research found that the average of the total value of vibration acceleration received by the drivers in A, B, and C transportations were 0.3877 m/s2 , 0.7056 m/s2 dan 0.6596 m/s2 , respectively. In Samarinda the drivers in B and C transportations were more uncomfortable to receive the whole body vibration than the drivers in C transportation.

Kaitan Tingkat Intensitas Bunyi terhadap Jarak dari Mesin Pembangkit Listrik (Genset) di RSUD Dayaku Raja Kota Bangun melti lestiyani lestiyani; Suhadi Muliyono; Devina Rayzy Perwitasari Sutaji Putri
Progressive Physics Journal Vol 2 No 2 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Research has been carried out on the relationship between the level of sound intensity and the distance on region 1 and region 2 from a power generator set (genset) at the Dayaku Raja Hospital, Kota Bangun. The sound intensity level value (β) is used as the dependent variable and the distance value (d) is used as the independent variable. Measurement distance in region 1 is 7 meters, while in region 2 is 30 meters, where measurement space of β is 1 meter used Sound Level Meter. Furthermore, average of β plotted with the distance (d), which the distance from the outer surface of the gensets house wall to measurement point of β (region 1) and the distance from the inner surface of the halfway house wall to measurement point of β (region 2) which the longer of the distance the smaller β are produced, where the linier curves with negative gradient are produced, that is (-1,6dB/m)d + 71,9dB (region 1) dan β = (-0,2dB/m)d + 50,1dB (region 2). On the research, β is on the range of 60 dB to 70 dB on region 1 and 40 dB to 50 dB on region 2 are produced. Thus, β from a power generator (genset) at the Dayaku Raja Hospital Kota Bangun less than Noise Threshold Value based on Peraturan Menteri Tenaga Kerja dan Transmigrasi No. 13/MEN/X/2011.

Analisis Treatment Planning System dengan Menggunakan Teknik Box dan Teknik Antero Posterior-Postero Anterior pada Kasus Kanker Serviks Yasinta Erikania Daniartie; Pratiwi Sri Wardani; Devina Rayzy Perwitasari Sutaji Putri; Robert Janssen Stevenly; Suryaningsih Suryaningsih
Progressive Physics Journal Vol 3 No 1 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Cervical cancer is cancer that grows in the cells on the cervix. Cervical cancer can be treated using radiotherapy. The purpose of this study was to determine the ratio of the dose received by the target volume and Organ at Risk (OAR) as well as the isodose curve using 4 directions of radiation field (gantry angle: 0°, 90°, 180° and 270°) and 2 directions of radiation field (gantry angle: 0° and 180°). The data processing step in this research was to do radiation planning (planning) by using 4 directions of radiation field (gantry angle: 0°, 90°, 180° and 270°) and 2 directions of radiation field (gantry angle: 0° and 180°). Then a comparative analysis of the dose value received by the target volume and Organ at Risk (OAR) was carried out. A comparative analysis of the isodose curve was performed by using each of the techniques. The results obtained from this study are the target volume has minimal dose using the box technique compared to the antero posterior-postero anterior technique. For Organ at Risk, namely bladder and rectum, the dose was minimal by using the box technique compared to using the anteroposteriorpostero anterior technique. Meanwhile, the right and left femoral heads received higher doses using the box technique than the antero-posterior-postero anterior technique. And for the isodose curve planning results using the box technique shows a more even distribution of the dose distribution to the entire target volume compared to the antero posterior-postero anterior technique.

Penilaian Tingkat Risiko Postur Kerja Menggunakan Metode REBA dan Biomekanika Pada Aktivitas Mengangkat Beban Aldi Rizki Jordan; Pratiwi Sri Wardani; Kadek Subagiada; Devina Rayzy Perwitasari Sutaji Putri; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 4 No 1 (2023): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v4i1.1021

The activity of lifting weights has many risks that can lead to complaints and work accidents such as mistakes in lifting excessive loads, overly bent postures, and other complaints that result in uncomfortable working conditions. This research was conducted to determine the risk level of work posture using the REBA method and biomechanics in lifting weights with different lifting variables. The research were took documentation data, angle and distance measurements by using the Kinovea application, and the data analyzed by using the REBA Assessment Worksheet and biomechanical equations. Based on the results obtained, the activity of lifting burdens on workers from the aspect of the REBA method mostly has a high level of risk category and only 1 worker has a moderate level of risk category. Meanwhile, from the biomechanics aspect, most of them have a risk level in the careful category, 1 worker has a risk level in the safe category, and 1 worker who has lifted a load of 50 kg has a risk level in the dangerous category.

ANALISIS ISODOSIS TEKNIK TIGA DIMENSI DENGAN LAPANGAN KRANIOSPINAL PADA PASIEN ANAK Radila Mawar Sari; Adrianus Inu Natalisanto; Devina Rayzy Perwitasari Sutaji Putri
Progressive Physics Journal Vol 4 No 1 (2023): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v4i1.958

Craniospinal is known as the method to kill the cancer within a wide radiation area, starting from the cranial to spinal nervous system. In the case, the cancer has spread through the fluid of cerebro spinalis, such as medulloblastoma. We carried out the research to determine the isodose curve in medulloblastoma craniospinal patients and DVH (Dose Volume Histogram) statistic in the OAR (Organ at Risk) by using 3D-CRT radiotherapy technique. To conduct the radiative treatment, we used the moving Junction method in which the radiation was divided into three Iso section, i.e.: Section Iso brain with gantry 90° and 270°, Section Iso thoracic with gantry 0°, and Section Iso lumbar with gantry 0°. Then, we analyzed the isodose curves and DVH statistics created by photon beams of 6 MV and 10 MV with and without considering the dose absorbed by OAR. We found that the isodose curves created with considering the OAR dose were better than those created without considering the OAR dose. We also found that the dose absorbed by OAR was within the tolerance limit stated in ICRU guidelines. Kata Kunci: DVH of statistic, Isodose curve, Craniospinal, Medulloblastoma

Pengaruh Iklim Kerja Panas Terhadap Respon Fisiologis Pekerja dalam Ruang Preparasi di PT-X nur shabrina ulima fitriani; Adrianus Inu Natalisanto; Devina Rayzy Perwitasari Sutaji Putri; Mislan Mislan; Erlinda Ratnasari Putri
Progressive Physics Journal Vol 4 No 1 (2023): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v4i1.1025

Work climate is one of the factors whose gave big influence on the performance of human resources, for both in hot work climate and cold work climate, even the effect is not limited to performance but can go further, specifically on the safety and health of workers. For this reason, it is necessary to measure and evaluate the working climate standard. This study was conducted to determine the effect of hot working climate on the physiological response of workers in the preparation room at PT-X and to find a temperature control strategy in the preparation room at PT-X. The research were carried out in 4 steps, namely: first was collecting data on the work climate in the Preparation Room at PT-X, second was collecting data on the workload of workers in the Preparation Room at PT-X, third was collecting data on the physiological response of the worker in the form of measuring body temperature, measuring blood pressure, measuring pulse rate and measuring the weight of workers. The last step was analysis. Based on the results of the research, the hot working climate affects the physiological response of the workers before and after work. The strategy for controlling the hot working climate in the Preparation Room at PT-X is by increasing the rest time for workers, maximizing the use of PPE (Personal Protection Equipment) for each worker, and adding health signs at the worker's location.

Uji Kualitas Batubara terhadap Kedalaman Lapisan Daerah Penambangan Pulau Bunyu dengan Metode Proksimat pada Lokasi 4 Pit Quintiza Anugerah; Adrianus Inu Natalisanto; Devina Rayzy PSP
JURNAL GEOSAINS KUTAI BASIN Vol 5 No 1 (2022)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v5i1.605

The purpose of this research was motivated by the level of coal quality at each depth of the layer. Each coal company needs to do a quality testing when conducting exploring. In addition to measuring the amount of potential coal reserves, it also measures the quality level of the coal. Whether if carried out exploration or excavation can provide benefits, therefore in this research the author will conduct research on the effect of the depth level of the layer of coal using parameters such as calorific value, total sulfur, fixed carbon, volatile matter, ash, and moisture. As for the place of this research conducted at PT. lamindo inter multikon mining area of Bunyu Island, Bulungan Regency, North Kalimantan Province. From the results of this research it was found that the highest caloric value was the location of PIT 4.

Studi Perubahan Fase Bulan Terhadap Nilai Tunggang Pasang Surut dan Slack Water dari Penanggalan Hijriah Puteri Buana Rizqi; Devina Rayzy Perwitasari; Idris Mandang
JURNAL GEOSAINS KUTAI BASIN Vol 4 No 2 (2021)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v4i2.716

Penanggalan hijriah atau biasa disebut sebagai penanggalan islam adalah sistem penanggalan yang menggunakan pergerakan bulan sebagai acuannya. Dalam ilmu Oseanografi, pergerakan bulan mempengaruhi dinamika pasang surut. Tujuan dilakukannya penelitian ini adalah mengetahui hubungan fase bulan terhadap tunggang pasang surut dan slack water. Penelitian ini berlokasi di Dermaga Pantai Mutiara Muara Badak pada tanggal 29 Januari – 17 Februari 2107. Penelitian ini menggunakan metode Least Square untuk menganalisis konstanta pasang surut dan algoritma Fast Fourier Transform untuk tipe pasang surut. Hasil yang didapatkan adalah pasang tertinggi terjadi saat masuknya bulan purnama dikarenakan posisi bumi dan bulan sejajar dengan matahari sehingga gaya tariknya lebih besar. Penelitian ini diharapkan dapat memberi informasi tentang penentuan penanggalan hijriah menurut nilai tunggang pasang surut.

Co-Authors Adrianus Inu Natalisanto Adrianus Inu Natalisanto Adrianus Inu Natalisanto Aldi Rizki Jordan Asmar Adhan Ramadhan Azizah Bella Azizah Bella Idris Mandang Idris Mandang, Idris Kadek Subagiada Laksono Trisnantoro melti lestiyani lestiyani Mislan Mislan Mustaid Yusuf nur shabrina ulima fitriani Pratiwi Sri Wardani Puspa Syadariah Puteri Buana Rizqi Quintiza Anugerah Radila Mawar Sari Restu Agesta Dwi Maulana Robert Janssen Stevenly Suhadi Muliyono Suryaningsih Suryaningsih Yasinta Erikania Daniartie

Title

Found 11 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 11 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 11 Documents
Search