Arfan Eko Fahrudin, Said Ja'far Shadiq, A. A. Harnawan
− The quality of water hold on important rule in the field of fisheries, especially in cultivation activities. Parameters of water quality are often observed such as temperature, pH, salinity, and others. The influence of water quality on cultivation activity is very important therefore supervision of water quality parameters is absolute done by cultivators. This research had created the quality of water monitoring system in fishponds wirelessly. The system consist of the transmitter that integrated with LM35 sensor, pH meter kit sensor and conductivity sensor as measurer of water quality, and the receiver receive datum transmitted wirelessly with nRF24L01 module a long 5 meters distance from transmitter. The receiver equipped with an interface with PC which can save data measurement automatically to Microsoft Excel. The results of the validation of the measurement instrument obtained average of error relative to measurement were 0.01 0C for temperature, 0.005 for pH and 0.008 ppt for salinity. In summary, the measurement of water quality in surface water fishponds of temperature is 29oC until 38oC, pH is 8,6 until 11,9 and salinity is 12 until 21 ppt.
{"title":"Pembuatan Sistem Monitoring Temperatur, pH dan Salinitas Tambak Ikan Secara Nirkabel","authors":"Arfan Eko Fahrudin, Said Ja'far Shadiq, A. A. Harnawan","doi":"10.20527/FLUX.V1I1.6156","DOIUrl":"https://doi.org/10.20527/FLUX.V1I1.6156","url":null,"abstract":"− The quality of water hold on important rule in the field of fisheries, especially in cultivation activities. Parameters of water quality are often observed such as temperature, pH, salinity, and others. The influence of water quality on cultivation activity is very important therefore supervision of water quality parameters is absolute done by cultivators. This research had created the quality of water monitoring system in fishponds wirelessly. The system consist of the transmitter that integrated with LM35 sensor, pH meter kit sensor and conductivity sensor as measurer of water quality, and the receiver receive datum transmitted wirelessly with nRF24L01 module a long 5 meters distance from transmitter. The receiver equipped with an interface with PC which can save data measurement automatically to Microsoft Excel. The results of the validation of the measurement instrument obtained average of error relative to measurement were 0.01 0C for temperature, 0.005 for pH and 0.008 ppt for salinity. In summary, the measurement of water quality in surface water fishponds of temperature is 29oC until 38oC, pH is 8,6 until 11,9 and salinity is 12 until 21 ppt.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43857764","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}
Soil moisture very important to be measured per unit of time, especially in peat soils that have high porosity value. The measuring device for detection of soil moisture is realized on this research. The soil moisture measuring instrument is built by three main blocks of an instrument, that are four soil moisture sensors YL-69s, Arduino Uno as measurement processing unit that equipped with sd card as data storage unit and 20x4 character LCD as a display unit of the measurement result. The span value of the measuring device ranges from 0% to 95 % with deviation from 0% to 4.88%.The advantages of the measurement instrument system are simple in the operational process, real-time monitoring and stored automatically.
{"title":"Pembuatan Alat Ukur Multi Kanal Kelembaban Tanah Berbasis Mikrokontroler Arduino Uno","authors":"M. Kharisma, Iwan Sugriwan, A. A. Harnawan","doi":"10.20527/flux.v1i1.6153","DOIUrl":"https://doi.org/10.20527/flux.v1i1.6153","url":null,"abstract":"Soil moisture very important to be measured per unit of time, especially in peat soils that have high porosity value. The measuring device for detection of soil moisture is realized on this research. The soil moisture measuring instrument is built by three main blocks of an instrument, that are four soil moisture sensors YL-69s, Arduino Uno as measurement processing unit that equipped with sd card as data storage unit and 20x4 character LCD as a display unit of the measurement result. The span value of the measuring device ranges from 0% to 95 % with deviation from 0% to 4.88%.The advantages of the measurement instrument system are simple in the operational process, real-time monitoring and stored automatically.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45026004","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}
The development of development that is so rapid causes more and more land to change into new buildings and settlements that have an impact on the reduction in the area of water catchment areas. Reduced water catchment areas will result in reduced groundwater reserves and will cause natural disasters such as floods. Based on this, efforts need to be made to determine the condition and distribution of water absorption in the Tabunio watershed area. In determining water absorption conditions there are four parameters, namely soil type, rainfall, land cover and slope. The data analysis method used is the overlay method with Geographic Information System (GIS) software. The results of data analysis showed that the study area with an area of 62,558.56 ha was divided into five conditions for water catchment areas. The water recharge conditions were very critical with an area of 32.38 ha, critical conditions covering 13,391.14, rather critical conditions covering an area of 35,769.47 ha, critical conditions ranging from 13,359.27 ha and natural normal conditions covering an area of 6.10 ha.
{"title":"Analisis Tingkat Resapan Air Menggunakan Sistem Informasi Geografis di Das Tabunio","authors":"Ahmad Eko Saputra, Ichsan Ridwan, N. Nurlina","doi":"10.20527/flux.v1i1.6158","DOIUrl":"https://doi.org/10.20527/flux.v1i1.6158","url":null,"abstract":"The development of development that is so rapid causes more and more land to change into new buildings and settlements that have an impact on the reduction in the area of water catchment areas. Reduced water catchment areas will result in reduced groundwater reserves and will cause natural disasters such as floods. Based on this, efforts need to be made to determine the condition and distribution of water absorption in the Tabunio watershed area. In determining water absorption conditions there are four parameters, namely soil type, rainfall, land cover and slope. The data analysis method used is the overlay method with Geographic Information System (GIS) software. The results of data analysis showed that the study area with an area of 62,558.56 ha was divided into five conditions for water catchment areas. The water recharge conditions were very critical with an area of 32.38 ha, critical conditions covering 13,391.14, rather critical conditions covering an area of 35,769.47 ha, critical conditions ranging from 13,359.27 ha and natural normal conditions covering an area of 6.10 ha.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42695674","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}
The tire repair location is one of the determining factors sought by motorized vehicle users if they are experiencing a tire leak in the middle of a trip. This makes vehicle users panic and think to immediately look for the nearest tire repair location. Banjarbaru City has 5 sub-districts and 12 villages, and is the center of the South Kalimantan Province administration. Given the large number of settlements, especially now that there are many housing complexes in Banjarbaru, this automatically makes the number of new roads opened by the local government. Actually this can be an opportunity for tire repair entrepreneurs to open tire repair locations in several places, because nowadays there are still very few workshops or tire repair locations in the new residential area.Location Based Service System, or better known as LBS, combines the process of a mobile service with the geographical position of its users. The important point is when the target position, where a target might be an LBS user or another entity that is incorporated in a service. This research leads to android based applications and services that provide information of tire repairlocation, to make it easier for motorbike riders to find tire repair locations based on available facilities.
{"title":"Location Based Services (LBS) for Searching Tire Repair Location in Banjarbaru City Based on Android","authors":"D. Puspitasari, Mirza Yogy Kurniawan","doi":"10.20527/FLUX.V1I1.6150","DOIUrl":"https://doi.org/10.20527/FLUX.V1I1.6150","url":null,"abstract":"The tire repair location is one of the determining factors sought by motorized vehicle users if they are experiencing a tire leak in the middle of a trip. This makes vehicle users panic and think to immediately look for the nearest tire repair location. Banjarbaru City has 5 sub-districts and 12 villages, and is the center of the South Kalimantan Province administration. Given the large number of settlements, especially now that there are many housing complexes in Banjarbaru, this automatically makes the number of new roads opened by the local government. Actually this can be an opportunity for tire repair entrepreneurs to open tire repair locations in several places, because nowadays there are still very few workshops or tire repair locations in the new residential area.Location Based Service System, or better known as LBS, combines the process of a mobile service with the geographical position of its users. The important point is when the target position, where a target might be an LBS user or another entity that is incorporated in a service. This research leads to android based applications and services that provide information of tire repairlocation, to make it easier for motorbike riders to find tire repair locations based on available facilities.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46067712","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}
Pembuatan dan karakterisasi briket berbahan cangkang sawit dengan perekat karet telah dilakukan. 20 gram cangkang kelapa sawit terpirolisis yang diayak 50 mesh dicampurkan dengan variasi perekat karet segar sebanyak 2, 3, 4, dan 5 gram dicetak pada cetakan silinder. Karakterisasi yang dilakukan terhadap briket yaitu kadar air, kadar abu dan nilai kalor. Hasil karakterisasi nilai kalor menunjukkan bahwa briket dengan perekat 2 gram lebih tinggi dibandingkan campuran lainnya yaitu 7209,94 kal/gram, sedangkan nilai kalor terendah dihasilkan oleh briket dengan perekat 5 gram yaitu 6837,43 kal/gram. Kadar abu dan kadar air tertinggi dihasilkan oleh briket dengan perekat 5 gram masing-masing 6,27% dan 10,04% sedangkan yang terendah dihasilkan oleh briket dengan perekat 2 gram masing-masing 4,98% dan 4,12%. Hasil penelitian ini menunjukkan bahwa berdasarkan SNI briket cangkang sawit dengan perekat karet pada komposisi perekat dibawah 5 gram masih sesuai dengan SNI.
{"title":"Pengaruh Jumlah Perekat Karet Terhadap Kualitas Briket Cangkang Sawit","authors":"M. Saukani, Rukun Setyono, Ice Trianiza","doi":"10.20527/flux.v1i1.6159","DOIUrl":"https://doi.org/10.20527/flux.v1i1.6159","url":null,"abstract":"Pembuatan dan karakterisasi briket berbahan cangkang sawit dengan perekat karet telah dilakukan. 20 gram cangkang kelapa sawit terpirolisis yang diayak 50 mesh dicampurkan dengan variasi perekat karet segar sebanyak 2, 3, 4, dan 5 gram dicetak pada cetakan silinder. Karakterisasi yang dilakukan terhadap briket yaitu kadar air, kadar abu dan nilai kalor. Hasil karakterisasi nilai kalor menunjukkan bahwa briket dengan perekat 2 gram lebih tinggi dibandingkan campuran lainnya yaitu 7209,94 kal/gram, sedangkan nilai kalor terendah dihasilkan oleh briket dengan perekat 5 gram yaitu 6837,43 kal/gram. Kadar abu dan kadar air tertinggi dihasilkan oleh briket dengan perekat 5 gram masing-masing 6,27% dan 10,04% sedangkan yang terendah dihasilkan oleh briket dengan perekat 2 gram masing-masing 4,98% dan 4,12%. Hasil penelitian ini menunjukkan bahwa berdasarkan SNI briket cangkang sawit dengan perekat karet pada komposisi perekat dibawah 5 gram masih sesuai dengan SNI.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45678940","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}
Biobriket merupakan bahan bakar padat yang merupakan alternatif pengganti minyak tanah dan gas yang mempunyai kelayakan teknis untuk digunakan sebagai bahan bakar rumah tangga, industri kecil ataupun menengah. Biobriket juga mempunyai keuntungan ekonomis karena dapat diproduksi secara sederhana, memiliki nilai kalor yang tinggi. Biobriket yang dibuat berasal campuran antara bottom ash batubara dan onggok tepung tapioka. Ketersediaan bottom ash batubara onggok tepung tapioka cukup banyak di Kalimantan Selatan. Bottom ash merupakan sisa hasil pembakaran batubara di PLTU yang saat ini belum banyak di manfaatkan dan hanya dibuang sebagai limbah. Padahal bottom ash batubara ini masih mempunyai nilai kalori yang cukup tinggi sedangkan onggok merupakan ampas dari hasil pembuatan tepung tapioka yang juga belum di manfaatan secara maksimal.Permasalahan yang sering di jumpai dalam penggunaan biobriket bottom ash batubara sebagai bahan bakar energi adalah lamanya penyalaan, bau yang tidak sedap pada saat di bakar, daya rekat briket yang tidak bagus sehingga briket mudah pecah. Tujuan dari penelitian mengetahui komposisi terbaik biobriket berdasarkan komposisi campuran, ukuran partikel dan parameter kualitas bottom ash batubara. Metode penelitian dilakukan dengan uji laboratorium. Parameter uji laboratorium yang digunakan adalah karakteristik biobriket yang meliputi kadar air, kadar abu, kadar volatile matter, nilai kalor, waktu pembakaran dengan variasi komposisi bahan baku dan binder. Berdasarkan hasil pengujian yang telah dilakukan dapat disimpulkan bahwa biobriketcampuranbottom ash batubara onggok tepung tapioka layak untuk di jadikan biobriket sebagai bahan bakar alternatif.Kualitas biobriket paling baik adalah biobriket dengan campuran 70% bottom ash, 20% onggok tepung tapioka dan 10% getah damar dengan hasil analisa Inherent Moisture 14,15%, Ash 8,34%, Volatile Matter 34,89%, Kalori 5401,6 Kkal/kg serta durasi pembakaran 47 Menit 17 Detik.
{"title":"Studi Analisa Kualitas Biobriket Campuran Bottom Ash Batubara dan Onggok Tepung Tapioka Menggunakan Karbonisasi","authors":"Agus Triantoro, A. Mustofa, K. Kartini, A. Hanafi","doi":"10.20527/FLUX.V1I1.6147","DOIUrl":"https://doi.org/10.20527/FLUX.V1I1.6147","url":null,"abstract":"Biobriket merupakan bahan bakar padat yang merupakan alternatif pengganti minyak tanah dan gas yang mempunyai kelayakan teknis untuk digunakan sebagai bahan bakar rumah tangga, industri kecil ataupun menengah. Biobriket juga mempunyai keuntungan ekonomis karena dapat diproduksi secara sederhana, memiliki nilai kalor yang tinggi. Biobriket yang dibuat berasal campuran antara bottom ash batubara dan onggok tepung tapioka. Ketersediaan bottom ash batubara onggok tepung tapioka cukup banyak di Kalimantan Selatan. Bottom ash merupakan sisa hasil pembakaran batubara di PLTU yang saat ini belum banyak di manfaatkan dan hanya dibuang sebagai limbah. Padahal bottom ash batubara ini masih mempunyai nilai kalori yang cukup tinggi sedangkan onggok merupakan ampas dari hasil pembuatan tepung tapioka yang juga belum di manfaatan secara maksimal.Permasalahan yang sering di jumpai dalam penggunaan biobriket bottom ash batubara sebagai bahan bakar energi adalah lamanya penyalaan, bau yang tidak sedap pada saat di bakar, daya rekat briket yang tidak bagus sehingga briket mudah pecah. Tujuan dari penelitian mengetahui komposisi terbaik biobriket berdasarkan komposisi campuran, ukuran partikel dan parameter kualitas bottom ash batubara. Metode penelitian dilakukan dengan uji laboratorium. Parameter uji laboratorium yang digunakan adalah karakteristik biobriket yang meliputi kadar air, kadar abu, kadar volatile matter, nilai kalor, waktu pembakaran dengan variasi komposisi bahan baku dan binder. Berdasarkan hasil pengujian yang telah dilakukan dapat disimpulkan bahwa biobriketcampuranbottom ash batubara onggok tepung tapioka layak untuk di jadikan biobriket sebagai bahan bakar alternatif.Kualitas biobriket paling baik adalah biobriket dengan campuran 70% bottom ash, 20% onggok tepung tapioka dan 10% getah damar dengan hasil analisa Inherent Moisture 14,15%, Ash 8,34%, Volatile Matter 34,89%, Kalori 5401,6 Kkal/kg serta durasi pembakaran 47 Menit 17 Detik.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46909759","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}
Sound distribution and background noise, is an important aspect in the making of study-purposed room. Properly distributed sound would ensure everyone in the room to hear the same quality of sound. Good sound quality is defined as a sound that did not diminish its character (sound intensity and sound clarity) significantly to its sound source. In this research, has been fabricated an in-room sound distribution measuring instrument, based on the Arduino microcontroller that equipped with nRF24L01 to be wirelessly functionated. The fabricated measuring instrument consist of 4 transmitter devices and 2 receiver devices. The transmitter devices is an Arduino Pro Mini microcontroller that equipped with nRF24L01 and a sound sensor. The receiver devices is an Arduino Nano microcontroller equipped with nRF24L01, that connected to a PC, and an Arduino Pro Mini microcontroller equipped with nRF24L01 that connected to a speaker. The fabricated measuring instrument equipped with a Python 2.7-based acquisition software to acquire data in real time and store it in CSV (Comma Separated Value) format. Test was carried out to the transmitter devices that equipped with a sound sensor and the receiver device that connected to a speaker. The transmitter devices was compared with a standard sound level meter, and showed 0,65% - 1,24% of error percentage. The test made to receiver device showed that sound intensity of 100 dB could only be achieved with frequency of 2000 Hz and 3000 Hz. On the measurement of sound distribution, the primary data of Einstein Hall sound distribution has been obtained, with 16 sound level measuring point, 7 variations of sound source position, and 5 variations of sound source frequency.The background noise measurement of Einstein Hall of the FMIPA ULM, showed the value varied between 57 dB – 60,56 dB.
声音分布和背景噪声是书房制作中的一个重要方面。适当分布的声音可以确保房间里的每个人都能听到相同质量的声音。良好的音质被定义为不会显著削弱其声源特性（声音强度和声音清晰度）的声音。在本研究中，制作了一种基于Arduino微控制器的室内声音分布测量仪，该微控制器配备了nRF24L01以实现无线功能。制造的测量仪器由4个发射器设备和2个接收器设备组成。发射器设备是一个Arduino Pro Mini微控制器，配备nRF24L01和声音传感器。接收器设备是一个配备nRF24L01的Arduino Nano微控制器，该微控制器连接到PC，以及一个配备了nRF24R01的Aruino Pro Mini微控制器，连接到扬声器。制造的测量仪器配备了基于Python 2.7的采集软件，可实时采集数据并以CSV（逗号分隔值）格式存储。对配备有声音传感器的发射器设备和连接到扬声器的接收器设备进行了测试。将变送器设备与标准声级计进行了比较，显示出0.65%-1.24%的误差百分比。对接收装置的测试表明，只有在2000Hz和3000Hz的频率下才能达到100dB的声强。在声音分布的测量上，获得了爱因斯坦霍尔声音分布的原始数据，包括16个声级测量点、7个声源位置变化和5个声源频率变化。FMIPA ULM的Einstein Hall的背景噪声测量显示，该值在57 dB–60，56 dB之间变化。
{"title":"Pembuatan Alat Ukur Distribusi Bunyi dalam Ruang, secara Nirkabel Berbasis Mikrokontroler","authors":"Deanu Haratinu Tu’u, Iwan Sugriwan, Arfan Eko Fahrudin","doi":"10.20527/FLUX.V1I1.6152","DOIUrl":"https://doi.org/10.20527/FLUX.V1I1.6152","url":null,"abstract":"Sound distribution and background noise, is an important aspect in the making of study-purposed room. Properly distributed sound would ensure everyone in the room to hear the same quality of sound. Good sound quality is defined as a sound that did not diminish its character (sound intensity and sound clarity) significantly to its sound source. In this research, has been fabricated an in-room sound distribution measuring instrument, based on the Arduino microcontroller that equipped with nRF24L01 to be wirelessly functionated. The fabricated measuring instrument consist of 4 transmitter devices and 2 receiver devices. The transmitter devices is an Arduino Pro Mini microcontroller that equipped with nRF24L01 and a sound sensor. The receiver devices is an Arduino Nano microcontroller equipped with nRF24L01, that connected to a PC, and an Arduino Pro Mini microcontroller equipped with nRF24L01 that connected to a speaker. The fabricated measuring instrument equipped with a Python 2.7-based acquisition software to acquire data in real time and store it in CSV (Comma Separated Value) format. Test was carried out to the transmitter devices that equipped with a sound sensor and the receiver device that connected to a speaker. The transmitter devices was compared with a standard sound level meter, and showed 0,65% - 1,24% of error percentage. The test made to receiver device showed that sound intensity of 100 dB could only be achieved with frequency of 2000 Hz and 3000 Hz. On the measurement of sound distribution, the primary data of Einstein Hall sound distribution has been obtained, with 16 sound level measuring point, 7 variations of sound source position, and 5 variations of sound source frequency.The background noise measurement of Einstein Hall of the FMIPA ULM, showed the value varied between 57 dB – 60,56 dB.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46775344","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. A. Harnawan, Mawar Resty Anggraini, Iwan Sugriwan
The latex K3 determinant prototype using the ATMEGA8535 microcontroller based capacitive method was completed . K3 measuring system is arranged in several systems, there are parallel plate capacitive sensors, multivibrator, frequency to voltage converter, non inverting amplifier, ATMega8535 microcontroller module and 16x2 character LCD. The value of the latex capacitance is converted into a frequency by a multivibrator, then the frequency is converted to voltage and connected to the microcontroller to be processed and displayed the K3 value of latex on the LCD. The voltage characterization processes with a K3 value produces a K3 characteristic equation = - 19.996v + 54,831. These equations are processed in the BASCOM AVR program which is embedded in the microcontroller. The determination of K3 is used capacitive sensor which functions to read changes in the dielectric constant of latex , which has dimensions of 2.5 x 2.5cm with a distance between pieces of 0.6cm. In testing, the prototype can determine the value of K3 from 18% to 28% and the difference in K3 values from 0.3% to 1.2% compared to industrial measurements.
利用ATMEGA8535单片机完成了基于电容法的乳胶K3行列式样机。K3测量系统布置在多个系统中，有并联板电容式传感器、多谐振荡器、频压变换器、非反相放大器、ATMega8535单片机模块和16x2字符液晶显示屏。通过多振器将乳胶电容值转换成频率，然后将频率转换成电压并连接到单片机进行处理，并在LCD上显示乳胶的K3值。K3值的电压表征过程产生K3特征方程= - 19.996v + 54,831。这些方程在嵌入在微控制器中的BASCOM AVR程序中进行处理。K3的测定采用电容式传感器，该传感器的功能是读取乳胶介电常数的变化，其尺寸为2.5 x 2.5cm，片间距离为0.6cm。在测试中，与工业测量相比，原型机可以确定K3的值从18%到28%，K3值的差异从0.3%到1.2%。
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Dewi Umaningrum, Radna Nurmasari, M. Astuti, Ani Mulyasuryani, Diah Mardiana
Penelitian tentang penentuan formalin menggunakan metode potensiometri dan spektrofotometri telah dilakukan. Tujuan dari penelitian ini adalah untuk membandingkan hasil pengukuran kadar formalin antara metode potensiometri menggunakan sensor berbasis Screen Printed Carbon Electrode (SPCE) dengan metode standar spektrofotometri. Metode penelitian diawali dengan membuat sensor formalin yang digunakan untuk mengukur kadar formalin menggunakan selulosa asetat sebagai ionofor. Tahap berikutnya adalah mengukur kadar formalin sampel menggunakan sensor dan metode standar spektrofotometri. Hasil pengukuran kadar formalin kemudian dibandingkan diantara kedua metode tersebut. Hasil penelitian menunjukkan bahwa pada penentuan formalin antara kedua metode tersebut tidak menunjukkan beda nyata.
{"title":"Perbandingan Metode Potensiometri dan Spektrofotometri pada Penentuan Formalin","authors":"Dewi Umaningrum, Radna Nurmasari, M. Astuti, Ani Mulyasuryani, Diah Mardiana","doi":"10.20527/FLUX.V1I1.6148","DOIUrl":"https://doi.org/10.20527/FLUX.V1I1.6148","url":null,"abstract":"Penelitian tentang penentuan formalin menggunakan metode potensiometri dan spektrofotometri telah dilakukan. Tujuan dari penelitian ini adalah untuk membandingkan hasil pengukuran kadar formalin antara metode potensiometri menggunakan sensor berbasis Screen Printed Carbon Electrode (SPCE) dengan metode standar spektrofotometri. Metode penelitian diawali dengan membuat sensor formalin yang digunakan untuk mengukur kadar formalin menggunakan selulosa asetat sebagai ionofor. Tahap berikutnya adalah mengukur kadar formalin sampel menggunakan sensor dan metode standar spektrofotometri. Hasil pengukuran kadar formalin kemudian dibandingkan diantara kedua metode tersebut. Hasil penelitian menunjukkan bahwa pada penentuan formalin antara kedua metode tersebut tidak menunjukkan beda nyata.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44215440","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}
O. Soesanto, Nursalam Nursalam, Tanto Budi Susilo, Ketut Mega Fortuna
One of the potential of ecotourism in South Kalimantan that has not been much explored is the Liang Bangkai site in Tanah Bumbu. Ecotourism on the Liang Bangkai site highlights conservation in its cultural aspects and natural authenticity, without ignoring the economic aspects that are indicated to be unique and of high value. The artifact findings on this site are far more complete than the Sakulirang site, a site recommended by UNESCO as a world heritage (Sugiyanto, B., 2010). It is not easy for local governments to determine the right strategy in tourism promotion. This is related to many factors, one of which is the carefulness and thoroughness of the local government as decision makers in determining the criteria that are the strengths, weaknesses, opportunities and threats of each tourist location. Accuracy of the local government in digging information on each criterion built both externally and internally, then analyzed so that it can provide accurate information related to tourist sites and be able to formulate appropriate and measurable decision strategies for the promotion of ecotourism. The Fuzzy Analytical Network Process - Extend Analysis Chang method is used in determining the weight of interest between criteria and sub criteria and the weight of interest between promotion strategies. Based on the perception of the importance level of the sub-criteria for promotion strategies, the level of importance was found, namely Strengts - Opportunies (21.70%), Weakness - Opportunities (34.52%), Strengt - Threats (32.54%) and Weakness - Threats (11.24%). From these results, it can be seen that decision makers still emphasize strategies to overcome internal weaknesses to capture opportunities from potential Liang Bangkai sites and utilize the potential strength of the site to overcome external threats to the site.
{"title":"Analisis SWOT dengan Pendekatan Fuzzy Untuk Pemilihan Strategi Promosi Ekowisata Bukit Liang Bangkai di Kabupaten Tanah Bumbu","authors":"O. Soesanto, Nursalam Nursalam, Tanto Budi Susilo, Ketut Mega Fortuna","doi":"10.20527/flux.v1i1.6149","DOIUrl":"https://doi.org/10.20527/flux.v1i1.6149","url":null,"abstract":"One of the potential of ecotourism in South Kalimantan that has not been much explored is the Liang Bangkai site in Tanah Bumbu. Ecotourism on the Liang Bangkai site highlights conservation in its cultural aspects and natural authenticity, without ignoring the economic aspects that are indicated to be unique and of high value. The artifact findings on this site are far more complete than the Sakulirang site, a site recommended by UNESCO as a world heritage (Sugiyanto, B., 2010). It is not easy for local governments to determine the right strategy in tourism promotion. This is related to many factors, one of which is the carefulness and thoroughness of the local government as decision makers in determining the criteria that are the strengths, weaknesses, opportunities and threats of each tourist location. Accuracy of the local government in digging information on each criterion built both externally and internally, then analyzed so that it can provide accurate information related to tourist sites and be able to formulate appropriate and measurable decision strategies for the promotion of ecotourism. The Fuzzy Analytical Network Process - Extend Analysis Chang method is used in determining the weight of interest between criteria and sub criteria and the weight of interest between promotion strategies. Based on the perception of the importance level of the sub-criteria for promotion strategies, the level of importance was found, namely Strengts - Opportunies (21.70%), Weakness - Opportunities (34.52%), Strengt - Threats (32.54%) and Weakness - Threats (11.24%). From these results, it can be seen that decision makers still emphasize strategies to overcome internal weaknesses to capture opportunities from potential Liang Bangkai sites and utilize the potential strength of the site to overcome external threats to the site.","PeriodicalId":34112,"journal":{"name":"Jurnal Fisika Flux","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46024322","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}
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