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.
{"title":"Analisis Getaran Whole Body pada Supir Angkutan Umum di Samarinda","authors":"Puspa Syadariah, Devina Rayzy Perwitasari Sutaji Putri, Pratiwi Sri Wardani, Mislan Mislan, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i2.915","DOIUrl":"https://doi.org/10.30872/ppj.v3i2.915","url":null,"abstract":"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.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A metal detector using the Beat Frequency Oscillator principle and solenoid induction has been made using a series of tools (IC NE 555, capacitors with values of 3.3 F and 4.7 F, resistors 4.9 kΩ, enamel wire 0.3 mm, 4Ω 3W speakers, and 9V battery). The measuring limit of the tool is obtained through measurements using a metal material, namely iron, where the measured value variables are the value of frequency and voltage Vpp, and the average value of the frequency in the input data after the object is 868.1786 Hz and the average value of the Vpp voltage is 1,427 Volts. While the output data obtained the average frequency value is 863.4895 Hz and the average value of Vpp voltage is 0.325 Volt after the object, as for the sound produced before and after the object the difference is too small, so an amplifier circuit is added using an IC LM386 as Audio Amplifier.
使用一系列工具(IC NE 555, 3.3 F和4.7 F电容，4.9 kΩ电阻，0.3 mm搪瓷线，4Ω 3W扬声器和9V电池)，制作了一个使用Beat Frequency Oscillator原理和电磁感应的金属探测器。该工具的测量极限是通过使用金属材料即铁进行测量得到的，其中测量值变量为频率和电压Vpp的值，对象后输入数据中频率的平均值为868.1786 Hz, Vpp电压的平均值为1427伏。而得到的输出数据平均频率值为863.4895 Hz，目标后Vpp电压平均值为0.325伏，由于目标前后产生的声音差异太小，因此使用LM386集成电路作为音频放大器，增加了一个放大电路。
{"title":"Rancang Bangun Alat Metal Detector dengan Metode Beat Frequency Oscillator","authors":"Suhaesih Rianto, Syahrir Syahrir, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i2.957","DOIUrl":"https://doi.org/10.30872/ppj.v3i2.957","url":null,"abstract":"A metal detector using the Beat Frequency Oscillator principle and solenoid induction has been made using a series of tools (IC NE 555, capacitors with values of 3.3 F and 4.7 F, resistors 4.9 kΩ, enamel wire 0.3 mm, 4Ω 3W speakers, and 9V battery). The measuring limit of the tool is obtained through measurements using a metal material, namely iron, where the measured value variables are the value of frequency and voltage Vpp, and the average value of the frequency in the input data after the object is 868.1786 Hz and the average value of the Vpp voltage is 1,427 Volts. While the output data obtained the average frequency value is 863.4895 Hz and the average value of Vpp voltage is 0.325 Volt after the object, as for the sound produced before and after the object the difference is too small, so an amplifier circuit is added using an IC LM386 as Audio Amplifier.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121071831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kalimantan is an island surrounded by tropical rain forests and has hot and humid weather because it is crossed by the equator. The hot and humid weather affects the human working climate in the exchange of air in the room, for example in the laboratory. This study objective was to know the amount of air exchange per hour at the Samarinda Occupational Safety and Health Center. The tools used were the TESTO 425 anemometer, a digital meter, a lutron-abh 4225, and a laptop. The chambers where air changes per hour measured were the main laboratory, weighing chamber, UV-VIS spectrophotometer chamber, and atomic absorption and chromatography spectrophotometer chamber. Based on the results of measurements and data analysis, it can be concluded that the ventilation system of 3 out of 4 laboratory chambers has met the recommendation. The calculation step was carried out by entering the measured parameters into the ACH equation. The last stage, the analysis was carried out to compare the ACH values based on the ASHRAE recommendations. Based on the results, the average value of ACH for the main laboratory room was 3,8 x/hour, weighing chamber was 15,61 x/hour, UV-VIS spectrophotometer was 12,7 x/hour, and atomic absorption and chromatography spectrophotometer chamber was 12,78 x/hour. The average number of air changes per hour (ACH) at the laboratory is 11,22 x/hour, where the amount of air changes per hour is in accordance with the ASHRAE (2011) recommendation for a good and healthy environment, the ASHRAE recommendations with the ACH of the Laboratory room ranging from 6 to 12 x/hour. It can be concluded that wind speed, cross-sectional area, and room volume affect the amount of air exchange per hour.
{"title":"Analisis pertukaran udara per jam pada ventilasi laboratorium di kawasan hutan hujan tropis","authors":"Namira Yolanda, E. Putri, Rahmawati Munir","doi":"10.30872/ppj.v3i2.933","DOIUrl":"https://doi.org/10.30872/ppj.v3i2.933","url":null,"abstract":"Kalimantan is an island surrounded by tropical rain forests and has hot and humid weather because it is crossed by the equator. The hot and humid weather affects the human working climate in the exchange of air in the room, for example in the laboratory. This study objective was to know the amount of air exchange per hour at the Samarinda Occupational Safety and Health Center. The tools used were the TESTO 425 anemometer, a digital meter, a lutron-abh 4225, and a laptop. The chambers where air changes per hour measured were the main laboratory, weighing chamber, UV-VIS spectrophotometer chamber, and atomic absorption and chromatography spectrophotometer chamber. Based on the results of measurements and data analysis, it can be concluded that the ventilation system of 3 out of 4 laboratory chambers has met the recommendation. The calculation step was carried out by entering the measured parameters into the ACH equation. The last stage, the analysis was carried out to compare the ACH values based on the ASHRAE recommendations. Based on the results, the average value of ACH for the main laboratory room was 3,8 x/hour, weighing chamber was 15,61 x/hour, UV-VIS spectrophotometer was 12,7 x/hour, and atomic absorption and chromatography spectrophotometer chamber was 12,78 x/hour. The average number of air changes per hour (ACH) at the laboratory is 11,22 x/hour, where the amount of air changes per hour is in accordance with the ASHRAE (2011) recommendation for a good and healthy environment, the ASHRAE recommendations with the ACH of the Laboratory room ranging from 6 to 12 x/hour. It can be concluded that wind speed, cross-sectional area, and room volume affect the amount of air exchange per hour.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129209431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Waste could be found easily anywhere such as eggshells and rubbing-ash. Being a non-usable rubbish, These type of waste can be usefull in someways with a right treatment and deep research on compound material with in. The physical content from these waste utilized to be an adsorbent, it adsorbs a metal content e.g Mahakam river water sample. Main purpose of this research was based on benefical content from eggshells and rubbing-ash as their ability decreasing metal content. This study concluded experimentally using adsorbtion methods, a device such as Atomic Absobtion Spectrophotometer (AAS) was used to test the decreasing effect on logam content. The obtained data from testing process used to analyzed a metal concentration that disolved in water sample. This study results on decreasing metal concentration such as Fe and also Pb on Mahakam river water sample. Fe concentrat on these water sample shows decline rate from 1,5 mg/L to 0,11 mg/L given certain treatment adding eggshels powder. And also Pb content reduced from 1,69 mg/L to 0,24 mg/L indicate a little waste content from treated water sample. Inference from this study suggest addition of eggshells and rubbing-ash waste in form of powder had decreasing-effect on soluble metal content from Mahakam River water sample.
{"title":"Studi Adsorpsi Logam Berat Besi (Fe) dan Timbal (Pb) Air Sungai Mahakam oleh Limbah Cangkang Telur dan Abu Gosok","authors":"Alris Sanca Pratama Putra, Rahmawati Munir, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i2.929","DOIUrl":"https://doi.org/10.30872/ppj.v3i2.929","url":null,"abstract":"Waste could be found easily anywhere such as eggshells and rubbing-ash. Being a non-usable rubbish, These type of waste can be usefull in someways with a right treatment and deep research on compound material with in. The physical content from these waste utilized to be an adsorbent, it adsorbs a metal content e.g Mahakam river water sample. Main purpose of this research was based on benefical content from eggshells and rubbing-ash as their ability decreasing metal content. This study concluded experimentally using adsorbtion methods, a device such as Atomic Absobtion Spectrophotometer (AAS) was used to test the decreasing effect on logam content. The obtained data from testing process used to analyzed a metal concentration that disolved in water sample. This study results on decreasing metal concentration such as Fe and also Pb on Mahakam river water sample. Fe concentrat on these water sample shows decline rate from 1,5 mg/L to 0,11 mg/L given certain treatment adding eggshels powder. And also Pb content reduced from 1,69 mg/L to 0,24 mg/L indicate a little waste content from treated water sample. Inference from this study suggest addition of eggshells and rubbing-ash waste in form of powder had decreasing-effect on soluble metal content from Mahakam River water sample. \u0000 ","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132343295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Visualization of crystal structure and simulation of X-ray diffraction patterns of TiO2 (Titanium dioxide) was successfully performed by VESTA application. The purpose of this research is to obtain the relation of lattice parameter and composition to the diffraction pattern. The program on VESTA needs several input parameters that can be found on Crystallography Open Database (COD). The obtained output of the VESTA application are in the form of crystal structure and diffraction pattern graph. The data obtained by VESTA can be used to estimate the size of the crystal. The result showed that TiO2 has a tetragonal shape crystal structure. The addition of dopant such as Vanadium does not change the crystal structure and does not change the peak position of diffraction pattern graph.
{"title":"Investigasi pola XRD dan ukuran kristal pada TiO2 terdoping vanadium menggunakan aplikasi VESTA","authors":"Elfrida Dwi Saputri, Rahmawati Munir, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i1.909","DOIUrl":"https://doi.org/10.30872/ppj.v3i1.909","url":null,"abstract":"Visualization of crystal structure and simulation of X-ray diffraction patterns of TiO2 (Titanium dioxide) was successfully performed by VESTA application. The purpose of this research is to obtain the relation of lattice parameter and composition to the diffraction pattern. The program on VESTA needs several input parameters that can be found on Crystallography Open Database (COD). The obtained output of the VESTA application are in the form of crystal structure and diffraction pattern graph. The data obtained by VESTA can be used to estimate the size of the crystal. The result showed that TiO2 has a tetragonal shape crystal structure. The addition of dopant such as Vanadium does not change the crystal structure and does not change the peak position of diffraction pattern graph.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128472097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Telah dilakukan penelitian tentang rancang bangun prototipe monitoring suhu dan kelembaban udara berbasis internet of things (IoT) pada Labratorium Kalibrasi Balai Pengujian dan Sertifikasi Mutu Barang (BPSMB) Samarinda. Penelitian ini bertujuan merancang prototipe yang dapat mengukur suhu dan kelembaban udara menggunakan sensor BME280 berbasis mikrokontoler NodeMCU ESP8266. Tahapan penelitian dilakukan dengan merancang perangkat keras dan perangkat lunak prototipe menggunakan BME280 sebagai sensor yang dapat mengukur suhu dan kelembaban udara dan NodeMCU ESP8266 sebagai kontrol utama yang dilakukan di Laboratorium Elektronika dan Instrumentasi Universitas Mulawarman. Tahap selanjutnya, dilakukan pemantauan suhu dan kelembaban udara di Laboratorium Kaibrasi Balai Pengujian dan Sertifikasi Mutu Barang Samarinda. Hasil perancangan prototipe dapat mengukur suhu dan kelembaban udara seacara realtime serta dapat dimonitoring menggunakan smartphone melalui aplikasi blynk dan hasil monitoring di Laboratorium Kalibrasi BPSMB Samarinda menunjukkan bahwa laboratorium tersebut berada pada suhu ideal yaitu 18 - 22 sesuai standar acuan JIS Z 8710 (Japanese Industrial Standard).
已经进行了一项关于在实验室校准测试大厅和质量认证(BPSMB)的基于互联网的温度监测和空气湿度的研究。本研究旨在设计一种原型，使用基于BME280微孔孔传感器ESP8266来测量温度和湿度。研究阶段包括设计原型硬件和软件，使用BME280作为测量温度、湿度和湿度的传感器，作为Mulawarman大学电子实验室和仪器的主要控制。接下来，在caibsetion hall测试和质量认证萨林达的实验室进行温度和空气湿度监测。原型设计可以通过blynk应用程序通过智能手机进行测量，并通过BPSMB samardna校准实验室的智能手机进行监控，根据标准JIS Z - 8710(日本标准)，它的温度是理想的18 - 22。
{"title":"Rancang Bangun Prototipe Monitoring Suhu dan Kelembaban Udara Berbasis Internet Of Things (IOT) Pada Laboratorium Kalibrasi Balai Pengujian dan Sertifikasi Mutu Barang Samarinda","authors":"Muh T. Awaluddin, Syahrir Syahrir, A. Zarkasi","doi":"10.30872/ppj.v3i1.910","DOIUrl":"https://doi.org/10.30872/ppj.v3i1.910","url":null,"abstract":"Telah dilakukan penelitian tentang rancang bangun prototipe monitoring suhu dan kelembaban udara berbasis internet of things (IoT) pada Labratorium Kalibrasi Balai Pengujian dan Sertifikasi Mutu Barang (BPSMB) Samarinda. Penelitian ini bertujuan merancang prototipe yang dapat mengukur suhu dan kelembaban udara menggunakan sensor BME280 berbasis mikrokontoler NodeMCU ESP8266. Tahapan penelitian dilakukan dengan merancang perangkat keras dan perangkat lunak prototipe menggunakan BME280 sebagai sensor yang dapat mengukur suhu dan kelembaban udara dan NodeMCU ESP8266 sebagai kontrol utama yang dilakukan di Laboratorium Elektronika dan Instrumentasi Universitas Mulawarman. Tahap selanjutnya, dilakukan pemantauan suhu dan kelembaban udara di Laboratorium Kaibrasi Balai Pengujian dan Sertifikasi Mutu Barang Samarinda. Hasil perancangan prototipe dapat mengukur suhu dan kelembaban udara seacara realtime serta dapat dimonitoring menggunakan smartphone melalui aplikasi blynk dan hasil monitoring di Laboratorium Kalibrasi BPSMB Samarinda menunjukkan bahwa laboratorium tersebut berada pada suhu ideal yaitu 18 - 22 sesuai standar acuan JIS Z 8710 (Japanese Industrial Standard).","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117182623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
David Bandhaso, Rahmawati Munir, Adrianus Inu Natalisanto
Banana kick is a type of soccer kick that uses the Magnus effect. The Magnus effect is a change in the direction of the ball's trajectory caused by the Magnus force. The force arises when a ball moving in air rotates on its axis. This research was conducted to analyze the ball entering the goal as a result of the Magnus force created by footballers. By means of Tracking Video Analysis and Modeling Tool software to several video tracks of football matches, it can be obtained the initial velocity, elevation angle, and angular velocity to determine the reach and heigh of the ball and the pertain Magnus force. The results of this study can be used in banana kick training.
{"title":"Analisis Tendangan Pisang Pesepak Bola","authors":"David Bandhaso, Rahmawati Munir, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v3i1.819","DOIUrl":"https://doi.org/10.30872/ppj.v3i1.819","url":null,"abstract":"Banana kick is a type of soccer kick that uses the Magnus effect. The Magnus effect is a change in the direction of the ball's trajectory caused by the Magnus force. The force arises when a ball moving in air rotates on its axis. This research was conducted to analyze the ball entering the goal as a result of the Magnus force created by footballers. By means of Tracking Video Analysis and Modeling Tool software to several video tracks of football matches, it can be obtained the initial velocity, elevation angle, and angular velocity to determine the reach and heigh of the ball and the pertain Magnus force. The results of this study can be used in banana kick training.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125459076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Riska Fitriani, Kadek Subagiada, S. Muliyono, Robert Janssen Stevenly, Suryaningsih Suryaningsih
Bolus is a material that has properties similar to body tissues and is used to maximize the absorbed dose on the skin surface. The purpose of this research was to determine the most optimal treatment to kill fibrosarcoma on the patient’s skin surface by comparing the isodose curve and the value of the radiation absorption dose on the physical bolus (from CT-Scan) and model bolus (TPS). This study used data in the form of bolus images (with a bolus thickness of 0 cm, 0.5 cm and 1.0 cm) and phantom image. Then the data was processed with Treatment Planning System (TPS) and given energy variations in the form of electrons (10 MeV, 12 MeV, dan 15 MeV) and photons (6 MV and 10 MV). The result of this research was an isodosis curve that describes the distribution of the dose and the value of the absorbed dose of radiation received by the skin surface. The conclusion of this research is a bolus thickness of 0,5 cm and an electron energy of 15 MeV, has more even isodose curve (covering the entire tumor) and the maximum absorption dose value were 5720 cGy for physical bolus and 5710 cGy for TPS bolus.
{"title":"Analisis Penggunaan Bolus Berbahan Plastisin pada Pasien Fibrosarcoma dengan Treatment Planning System (TPS)","authors":"Riska Fitriani, Kadek Subagiada, S. Muliyono, Robert Janssen Stevenly, Suryaningsih Suryaningsih","doi":"10.30872/ppj.v3i1.818","DOIUrl":"https://doi.org/10.30872/ppj.v3i1.818","url":null,"abstract":"Bolus is a material that has properties similar to body tissues and is used to maximize the absorbed dose on the skin surface. The purpose of this research was to determine the most optimal treatment to kill fibrosarcoma on the patient’s skin surface by comparing the isodose curve and the value of the radiation absorption dose on the physical bolus (from CT-Scan) and model bolus (TPS). This study used data in the form of bolus images (with a bolus thickness of 0 cm, 0.5 cm and 1.0 cm) and phantom image. Then the data was processed with Treatment Planning System (TPS) and given energy variations in the form of electrons (10 MeV, 12 MeV, dan 15 MeV) and photons (6 MV and 10 MV). The result of this research was an isodosis curve that describes the distribution of the dose and the value of the absorbed dose of radiation received by the skin surface. The conclusion of this research is a bolus thickness of 0,5 cm and an electron energy of 15 MeV, has more even isodose curve (covering the entire tumor) and the maximum absorption dose value were 5720 cGy for physical bolus and 5710 cGy for TPS bolus.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129822135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yasinta Erikania Daniartie, Pratiwi Sri Wardani, Devina Rayzy Perwitasari Sutaji Putri, Robert Janssen Stevenly, Suryaningsih Suryaningsih
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.
{"title":"Analisis Treatment Planning System dengan Menggunakan Teknik Box dan Teknik Antero Posterior-Postero Anterior pada Kasus Kanker Serviks","authors":"Yasinta Erikania Daniartie, Pratiwi Sri Wardani, Devina Rayzy Perwitasari Sutaji Putri, Robert Janssen Stevenly, Suryaningsih Suryaningsih","doi":"10.30872/ppj.v3i1.873","DOIUrl":"https://doi.org/10.30872/ppj.v3i1.873","url":null,"abstract":"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.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132419669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mutiara Ayu Lestari, Piter Lepong, Adrianus Inu Natalisanto
Abstract Ordinary kriging geostatistical method is an interpolation method that used spatial data. This method generally used to estimate coal and mineral resources. However, over time this method is also used in estimating land prices. The purpose of this research is to determine the best model for land price estimation in North Samarinda District, especially in Sempaja Selatan Sub-District between spherical models, Exponential models and Gaussian models and to determine land price estimation using ordinary kriging geostatistical method based on the best semivariogram model displayed in the form of a contour map. The estimation process begins by create an experimental semivariogram and a structural analysis which is carried out to obtain sill, nugget and range. Then, interpolated using the three models to get the predicted value and calculated RMSE to determine the performance of the model, which the spherical model is the best model because it has the smallest RMSE value. From this method, a contour map of the estimation results of land prices in Sempaja Selatan Sub-District of North Samarinda District is obtained. The lowest land prices are found to be predominantly located in the northwest and north of Sempaja Selatan Sub-District. The lowest price of the land range from Rp. 279,000,- to Rp. 900,000,- per m2 and the highest price of land is predominantly located in the southern part of Sempaja Selatan Sub-District with prices ranging from Rp. 2,982,000, - to Rp. 4,981,000, - per m2. The variation in land prices in Sempaja Selatan Sub-District of North Samarinda District is influenced by physical factors, namely the elevation and slope of the slope. Low land prices tend to be in areas of high elevation and steep slopes, while high land prices are at low elevations and with a slope that is flat. So from this, it can be said that the land price is inversely proportional to the physical factor of the land.
{"title":"Penerapan Geostatistika Ordinary Kriging dalam Estimasi Harga Tanah (Studi Kasus: Kecamatan Samarinda Utara Kota Samarinda)","authors":"Mutiara Ayu Lestari, Piter Lepong, Adrianus Inu Natalisanto","doi":"10.30872/ppj.v2i2.800","DOIUrl":"https://doi.org/10.30872/ppj.v2i2.800","url":null,"abstract":"Abstract \u0000Ordinary kriging geostatistical method is an interpolation method that used spatial data. This method generally used to estimate coal and mineral resources. However, over time this method is also used in estimating land prices. The purpose of this research is to determine the best model for land price estimation in North Samarinda District, especially in Sempaja Selatan Sub-District between spherical models, Exponential models and Gaussian models and to determine land price estimation using ordinary kriging geostatistical method based on the best semivariogram model displayed in the form of a contour map. The estimation process begins by create an experimental semivariogram and a structural analysis which is carried out to obtain sill, nugget and range. Then, interpolated using the three models to get the predicted value and calculated RMSE to determine the performance of the model, which the spherical model is the best model because it has the smallest RMSE value. From this method, a contour map of the estimation results of land prices in Sempaja Selatan Sub-District of North Samarinda District is obtained. The lowest land prices are found to be predominantly located in the northwest and north of Sempaja Selatan Sub-District. The lowest price of the land range from Rp. 279,000,- to Rp. 900,000,- per m2 and the highest price of land is predominantly located in the southern part of Sempaja Selatan Sub-District with prices ranging from Rp. 2,982,000, - to Rp. 4,981,000, - per m2. The variation in land prices in Sempaja Selatan Sub-District of North Samarinda District is influenced by physical factors, namely the elevation and slope of the slope. Low land prices tend to be in areas of high elevation and steep slopes, while high land prices are at low elevations and with a slope that is flat. So from this, it can be said that the land price is inversely proportional to the physical factor of the land.","PeriodicalId":221598,"journal":{"name":"Progressive Physics Journal","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124559174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：