Buletin Fisika最新文献

Pemetaan Laju Infiltrasi Tanah Kota Pontianak Menggunakan Infiltrometer Cincin Tunggal 使用单环渗透仪绘制坤甸市土壤渗透率图

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p12

Radhitya Perdhana, M. Muhardi, Yuris Sutanto

引用次数: 0

Biosintesis Dan Karakterisasi Nanopartikel Perak Menggunakan Ekstrak Rimpang Rumput Teki (Cyperus rotundus L.) 利用茶壶草根茎提取物（Cyperus rotundus L.）生物合成银纳米粒子并确定其特性

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p14

Rosvita Hilbrida Sulastri, I. W. Supardi, N. N. Rupiasih, I. Kasmawan, I. P. Adnyana, I. Sandi

引用次数: 0

Analisis Fase Karbon Pada Pemutih Gigi Berbasis Arang Aktif Tempurung Kelapa Dengan Metode Difraksi Sinar-X (XRD) 利用 X 射线衍射 (XRD) 法分析椰壳活性炭牙齿美白剂的碳相

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p16

Muna Alfira, Made Sumadiyasa, K. N. Suarbawa, Nyoman Wendri

引用次数: 0

Identification of Metal Content in Water Samples from Natural Hot Water Sources in Ulumbu Desa Wewo Kecamatan Satar Mese Center Manggarai Regency 芒加莱县乌伦布-德萨-韦沃-卡卡马坦-萨塔尔-梅塞中心天然热水源水样中金属含量的鉴定

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p13

Helena Idah, Ida Bagus Made Suryatika, I. Paramarta, A.A. Ngurah Gunawan, N. Wendri, N. N. Rupiasih

{"title":"Identification of Metal Content in Water Samples from Natural Hot Water Sources in Ulumbu Desa Wewo Kecamatan Satar Mese Center Manggarai Regency","authors":"Helena Idah, Ida Bagus Made Suryatika, I. Paramarta, A.A. Ngurah Gunawan, N. Wendri, N. N. Rupiasih","doi":"10.24843/bf.2024.v25.i01.p13","DOIUrl":"https://doi.org/10.24843/bf.2024.v25.i01.p13","url":null,"abstract":"Tests have been conducted on the metal content of Calcium (Ca), Magnesium (Mg), Iron (Fe), Zinc (Zn), Copper (Cu), and Timbal (Pb), on samples of natural hot water Ulumbu Wewo Village Satar Mese Central Manggarai Regency. The research was conducted at the Joint Laboratory of the Faculty of MIPA Udayana University using Atomic Absorption Spectrometry (AAS). The data of the study showed samples of hot water from hot water bathing attractions in Ulumbu Village Wewo Satar Mese District of Central Manggarai Regency contain Ca, Mg, Fe, Zn, Cu, Pb which at each point was different. Calcium content at point 1: 1.6001 mg/L, point 2: 26.9995 mg/L. point 3: 22.3959 mg/L, point 4: 1.1805 mg/L, and point 5: 6.7990 mg/L; magnesium content at point 1: 9.8199 mg/L, point 2: 5.5111 mg/L, point 3: 3.2000 mg/L, point 4: 5.6998 mg/L, and point 5: 8.5598 mg/L; iron content at point 1: 71.8500 mg/L, point 2: 28.7231 mg/L, point 3: 14.3057 mg/L, point 4: 59.3206 mg/L, and point 5: 64.1108 mg/L; the zinc content was only found at point 1 of: 0.5423 mg/L; copper content at point 1: 1.9899 mg/L, point 2: 0.4967 mg/L, point 3: 0.5701 mg/L, point 4: 0.8975 mg/L, and point 5: 1.4201 mg/L and lead content at point 1: 2.7687 mg/L, point 2: 3.8499 mg/L, point 3: 4.4291 mg/L, point 4: 4.8486 mg/L, and point 5: 5.7186 mg/L.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140420373","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}

引用次数: 0

Optical Characterization of Ferric-Doped ZnO Thin Film Deposited By Chemical Bath Deposition Method 化学浴沉积法沉积的掺铁氧化锌薄膜的光学特性分析

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p15

Mohammad Shahjahan, Aktarunnahar Eseta, Mohammad Asadul Haque

引用次数: 0

Study on the Relationship between Hotspots and Air Pollution Standard Index Based on Carbon Monoxide Concentration in West Kalimantan 基于一氧化碳浓度的西加里曼丹热点地区与空气污染标准指数的关系研究

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p11

Galuh Utamia Dillayati, D. Wahyuni, Riza Adriat, Azrul Azwar, Zulfian Zulfian

{"title":"Study on the Relationship between Hotspots and Air Pollution Standard Index Based on Carbon Monoxide Concentration in West Kalimantan","authors":"Galuh Utamia Dillayati, D. Wahyuni, Riza Adriat, Azrul Azwar, Zulfian Zulfian","doi":"10.24843/bf.2024.v25.i01.p11","DOIUrl":"https://doi.org/10.24843/bf.2024.v25.i01.p11","url":null,"abstract":"Hotspots, indicating active fires and potential sources of air pollution, are a major concern due to their impact on air quality in West Kalimantan. In this study, an analysis was carried out regarding the relationship of hotspots to the Air Pollution Standard Index (ISPU) based on the carbon monoxide (CO) parameter. This study aimed to determine the relationship between forest fires and air pollution levels. The data used in this study is in the form of monthly average CO concentration data and coordinates of hotspots in 2017-2021. To determine the effect of CO concentration, CO concentration was converted into ISPU and then mapped using the Inverse Distance Weighting (IDW) interpolation method. In addition, the overlay technique is also applied to the map and the correlation coefficient calculation between ISPU data and hotspot data. The study results show that the annual average number of hotspots ranges from 769 to 3,612, while the average ISPU ranges from 22.21 to 59.03. The highest average number of hotspots occurred in 2019, with 3,612 hotspots and the highest average ISPU value of 59.03, categorized as moderate. However, when examined monthly, the highest average number of hotspots is observed in August and September, with 8,505 and 8,321 hotspots, respectively, and average ISPU values of 55.36 and 88.32, categorized as moderate. Furthermore, the correlation coefficient between the average number of hotspots and the average ISPU per month is 0.91, and per year is 0.98, indicating a very high relationship. Spatially, clustered hotspot locations correspond to higher ISPU values. This implies that as the number of hotspots increases, the ISPU value based on CO concentration increases.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140418291","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}

引用次数: 0

Analisis Labilitas Atmosfer Pada Peristiwa Hujan Lebat Di Wilayah Bali Selatan (Studi Kasus: Kejadian Banjir 5 dan 6 Desember 2021) 南巴厘地区暴雨事件中的大气易变性分析（案例研究：2021 年 12 月 5 日和 6 日的洪水事件）

Buletin Fisika Pub Date : 2024-02-28 DOI: 10.24843/bf.2024.v25.i01.p10

Anin Nuril Firdausi, I. Yuliara, Kadek Sumaja, K. N. Suarbawa, Putu Suardana, I. Putra

{"title":"Analisis Labilitas Atmosfer Pada Peristiwa Hujan Lebat Di Wilayah Bali Selatan (Studi Kasus: Kejadian Banjir 5 dan 6 Desember 2021)","authors":"Anin Nuril Firdausi, I. Yuliara, Kadek Sumaja, K. N. Suarbawa, Putu Suardana, I. Putra","doi":"10.24843/bf.2024.v25.i01.p10","DOIUrl":"https://doi.org/10.24843/bf.2024.v25.i01.p10","url":null,"abstract":"Telah dilakukan analisis terjadinya labilitas atmosfer pada saat kejadian hujan lebat di wilayah Bali Selatan yaitu pada saat terjadi banjir pada tanggal 5 dan 6 Desember 2021. Tujuan dilakukan penelitian ini adalah untuk mengetahui keadaan atmosfer berdasarkan parameter cuaca dan labilitas atmosfernya di tiga wilayah Bali Selatan yaitu Kota Denpasar, Kabupaten Tabanan dan Kabupaten Badung. Penelitian ini menggunakan data sekunder meliputi data pengamatan sinoptik intensitas curah hujan tanggal 5-6 Desember 2021, data Reanalisis ECMWF, data citra Satelit Himawari, serta data observasi udara atas (Radiosonde). Data-data tersebut dianalisis berdasarkan faktor cuaca lokal dan labilitas atmosfernya. Diperoleh bahwa pada tanggal 5 Desember 2021, suhu udara di atmosfer relatif tinggi pada pukul 14.00 WITA dengan kelembaban relatif berkisar 82%-88% dan relatif rendah pada tanggal 6 Desember pada jam yang sama dengan kelembaban relatif menurun hingga 78%. Kecepatan angin mengalami peningkatan hingga 12,8 Knot dari tanggal 5 sampai 6 Desember dan labilitas atmosfer mengalami perubahan sebesar 94,3%. Meskipun demikian masih ada hujan dengan intensitas sedang yang disertai Thunderstorm.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":"35 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140421321","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}

引用次数: 0

Prototipe Penyaring Sampah Otomatis Dengan Sensor Load Cell Pada Perairan Drainase 带负荷传感器的排水系统垃圾自动过滤器原型

Buletin Fisika Pub Date : 2024-02-18 DOI: 10.24843/bf.2024.v25.i01.p18

Siti Nurlisa, M. Nasution, Nazaruddin Nasution

{"title":"Prototipe Penyaring Sampah Otomatis Dengan Sensor Load Cell Pada Perairan Drainase","authors":"Siti Nurlisa, M. Nasution, Nazaruddin Nasution","doi":"10.24843/bf.2024.v25.i01.p18","DOIUrl":"https://doi.org/10.24843/bf.2024.v25.i01.p18","url":null,"abstract":"Sampah merupakan masalah klasik untuk negara berkembang seperti Indonesia, kesadaran manusia yang masih minim mengenai sampah juga masih turut diprihatinkan, hal ini berdampak kepada meningkatnya sampah yang dihasilkan setiap tahunnya. Mengenai banyak sampah yang dibuang sembarangan oleh manusia, terkadang memiliki akibat yang sangat buruk bagi lingkungan. Salah satu diantaranya ialah penyumbatan sampah di saluran drainase. Tujuan dari penelitian ini yaitu Untuk mengetahui pembuatan dan nilai penyimpangan dari rancangan sistem alat penyaring sampah otomatis pada pintu air drainase menggunakan sensor load cell. Sistem kerja penyaring sampah otomatis yaitu penyaring sampah berputar dengan menggunakan motor gearbox dc 10 rpm kemudian sampah yang telah berhasil disaring dijatuhkan melalui konveyor untuk dibawa ke tempat sampah dan dihitung nilai beban sampah yang telah berhasil disaring dengan menggunakan sensor load cell dan ditampilkan pada layar Liquid Cristal Display (LCD).Dari hasil pengujian input dan output menyatakan bahwa sensor load cell memiliki tingkat error yang rendah yaitu 0.01% dengan pembacaan berat sampah pada sensor load cell yaitu 316 g dan tingkat error tertinggi yaitu 0.06% dengan pembacaan berat sampah pada sensor load cell yaitu 109 g.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":"7 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140452997","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}

引用次数: 0

Pengaruh Densitas Terhadap Kadar Air Pembuatan Briket Bioarang Kulit dan Tongkol Jagung 密度对玉米壳和玉米棒制成的生物炭块水分含量的影响

Buletin Fisika Pub Date : 2024-02-18 DOI: 10.24843/bf.2024.v25.i01.p17

Hafiza Hafiza, M. Masthura, Ety Jumiati

引用次数: 0

Pengukuran Temperatur Plasma Laser-Induced Breakdown Spectroscopy Dengan Persamaan Boltzmann Dari Emisi Dua Garis Atom Netral Cu

Buletin Fisika Pub Date : 2022-12-01 DOI: 10.24843/bf.2024.v25.i01.p09

Vincent Milano, Suyanto Hery, Ida Bagus Ketut Yoga

{"title":"Pengukuran Temperatur Plasma Laser-Induced Breakdown Spectroscopy Dengan Persamaan Boltzmann Dari Emisi Dua Garis Atom Netral Cu","authors":"Vincent Milano, Suyanto Hery, Ida Bagus Ketut Yoga","doi":"10.24843/bf.2024.v25.i01.p09","DOIUrl":"https://doi.org/10.24843/bf.2024.v25.i01.p09","url":null,"abstract":"Telah dilakukan Penelitian tentang pengukuran temperatur plasma dengan menggunakan metode pendekatan Persamaan Boltzmann. Penelitian dilakukan dengan menggunakan Instrumen Laser-Induced Breakdown Spectroscopy (LIBS) di Laboratorium Penelitian Terpadu FMIPA Universitas Udayana. Perhitungan temperatur plasma dilakukan dengan Persamaan Boltzmann menggunakan intensitas emisi dan luas area dibawah kurva dari emisi dua panjang gelombang atom netral Cu I 521,82 nm dan Cu I 510,55 nm. Data intensitas emisi atom netral Cu diperoleh dengan memfokuskan laser Nd-YAG (1064 nm, 7 ns) dengan energi 80 mJ ke permukaan lempengan sampel Bras 6s (atau 99,99%), pada lingkungan udara 1 atm dan lingkungan gas Helium dengan laju aliran 60 mL/s. Emisi foton dari atom-atom netral Cu dalam plasma ditangkap oleh spektrometer HR 2500+ (14.336 CCD pixel, 200-800 nm) dengan variasi waktu tunggu deteksi dari 0 µs sampai 1,5 µs. Dengan menggunakan persamaan Boltzmann diperoleh temperatur rata-rata plasma pada rentang waktu tunggu deteksi tersebut pada lingkungan udara sebesar (8976,40±160,34) K melalui perbandingan intensitas dan (13119,20±435,23) K menggunakan perbandingan luas area. Temperatur rata-rata plasma pada lingkungan gas Helium diperoleh sebesar (12261,21±419,06) K dengan perbandingan intensitas dan (16882,41± 678,18) K menggunakan perbandingan luas area.","PeriodicalId":32375,"journal":{"name":"Buletin Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42864244","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}

引用次数: 0