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INDONESIA
Jurnal technoscientia
Published by Institut Sains dan Teknologi AKPRIND
ISSN : 19798415     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Arjuna Subject : -
Articles 567 Documents
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PIROLISIS LIMBAH PANGKAL BAMBU MENJADI KARBON AKTIF DAN ASAP CAIR MENGGUNAKAN ZAT AKTIVATOR ASAM PHOSFAT Purwanti, Ani
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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An inefficient utilization of bamboo resulted in bamboo base as waste withouteconomical value. Converted this bamboo waste becomes active carbon throughpyrolysis will add more value of the product. This study aims to determine the parameterswhich influence the pyrolysis of bamboo waste, to determine the activity of the obtainedactive carbon and liquid smoke yield. The preparation of raw material was conducted bycutting the bamboo into the size of an average length of 4.33 cm, 1.43 cm wide, and 0.48cm high, also analyzed the water content. Pyrolisis was done for 60 minutes in the rangeof temperature between 250°C to 450°C. Activation methods varied by soaking in dilutedphosphoric acid solution (6-14%) prior to pyrolysis with variations in dipping time andtemperature pyrolysis. Yield and reactifity of obtained active carbon and also yield ofliquid smoke were analyzed. With 100 gram of raw material, 60 minutes of reaction time,and activation for 24 hr resulted in an optimum yield of active carbon 27,43% withreactivity 433,99 mg/g under 12% of phosphoric acid solution at 450°C, and the yield ofliquid smoke was 54 mL. GC-MS results showed that acetic acid (30.33%) as a majorcomponent, while 2-propanone (14,34%), methanol (10,37%), 2-butanone (3,75%),acetaldehyde (3,59%), furfural (2,95%), corylon (2,21%), cyclopropyl carbinol (2,11%),phenol (2,1%), glycol (1,85%), dan carbonic acid (1,28%) as a minor component.
ANALISIS KESTABILAN LERENG PIT C4 DAN D2 ROTO SELATAN PT. PAMAPERSADA NUSANTARA DISTRIK KIDECO KALIMANTAN TIMUR Herawadi, Dedi
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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Slopes mine is an important part of a mining activity. Slopes mine, slope stability can cause problems such as landslides and disrupting mining operations. The study was conducted to obtain the slope geometry that is safe and stable. Hypotheses that the slope is stable with the value of the safety factor of 1.5 (Sostrodarsono, Suyono). Single slope stability analysis is done for each material making up the slope in the form of sandstone, mudstone, and coal at 100% Saturated as well as the overall slope value (FK) 1,5. The simulation of single slope or in whole, the simulation is done by changing the height and angle of the slope in order to obtain the value of the safety factor (FK) which is safe and stable. This study uses Hoek and Bray and methods Bishop on total water saturated conditions. Single slope stability analysis results obtained by their eighth single slopes with FK values <1.5 is on the C4 West above, C4 lower west, D2 East Upper, D2 East under, and D2 West below and 3 overall slope C4 West, East D2, D2 West. Based on the analysis, simulation single slope and slope overall is for single slope with high-level geometry of 8-11 meters with a slope angle 50o and for the overall slope, slope C4 West with a height of 60 meters and a slope angle 29o, D2 East with a high slope 70 meter and the angle of 26o, the slope D2 West with 86 meters height and the angle of 25o. Application of slope geometry simulation results can reduce the potential of landslides on the slopes of the mine with FK above the reference value of 1.5.
PERANCANGAN SIMULASI PERGERAKAN AUTOMATIC CEILING SUSPENSION UNTUK ALAT RONTGEN STASIONER Ardha Putra, Dewa Gde; Buyung, Irawadi
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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Ceiling suspension stand is a method of x-ray tube placement on a stationary xray apparatus by hanging on the ceiling of the examination room and can be moved horizontally or vertically using a rail as a track. Simulating the movement of Automatic Ceiling Suspension for Stationary X-ray Equipment was made to produce an automatic movement of the ceiling suspension system used on stationary x-ray apparatus. Simulations created will facilitate x-ray equipment operator when setting the position of the x-ray tube during the examination. Simulations using a dc motor as the prime mover which is divided into horizontal and vertical movement. The movement of the motor is controlled by a microcontroller as a command center in the simulation. The movement generated by the simulation in the form of transfer of the parking position toward the examination table, the parking position to the vertical bucky, a vertical bucky toward the examining table position, and vertical bucky towards the parking position. The test results of simulation created is 8 seconds to move from the parking position to the position of the examination table, 38 seconds to move from the parking position to the vertical bucky
SISTEM PENGISIAN TANDON AIR GUNA PENYIRAMAN TANAMAN SECARA OTOMATIS MELALUI SMS GATEWAY Santosa, Gatot
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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Agricultural sector is playing vital role in Indonesia economy, in which irrigation mechanism is of key concern. Water management have to do optimally, both of suitability of water distribution, supply water and saving water and electricity. These problems can be overcome by designing a water level system for irrigation the plants by using a microcontroller Arduino Uno R3 and SMS Gateway. The water level control system consists of a main control that uses microcontroller Arduino Uno R3 which will take the data sent by resitif sensors, temperature sensors and moisture soil sensors and then compare it with the correct values and the results will be sent via SMS using the GSM TC35i. As for output used of water pumps, solenoid valve and the value of the moistuse soil and temperature sensors. From the test results are analyzed it can be concluded that the test was obtained power supply circuit output value of 13.6V DC. Testing the voltage divider circuit is divided into 3 output is 12V DC for the driver circuit, 9V DC to arduino, and 5V DC for TC35i. In the water reservoir when the height of 6.5cm below the resistance ranges from 200 to 400Ω and its output voltage reaches 0.3V. Error data on the LM35 temperature sensor of 0.2265625. For moisture soil sensors every 1% increase in soil moisture, the output voltage of 0,313V. In the test results of sending and receiving SMS takes time under 10 seconds
PEMANFAATAN UMBI GADUNG DAN SERAT DAUN NANAS UNTUK PEMBUATAN PLASTIK BIODEGRADABLE Yuniwati, Murni
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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Plastic wastes are increasingly causing serious problems for the community. This can be overcome with various methode, one of them by replacing the use of conventional plastics with biodegradable plastic. Biodegradable plastic has been produced, but its strength is still very less compared to conventional plastics. Therefore, there needs to be innovation in making stronger biodegradable plastic. This research tries to utilize starch of gadung  as raw material of biodegradable plastics and as a reinforcement used fiber of pineapple leaf  and glycerin as platilizer. Stages of making biodegradable plastics include the preparation (the manufacture of gadung starch, and fiber of pineapple leaf), followed by plastic manufacturing process by mixing the gadung starch, acetic acid, glycerin and fiber of pineapple leaf, then stirring and heating for a certain time, And the last stage is the printing and drying of the results. The research was conducted on  temperature, time of process , stirring speed, and the weight  ratio of gadung starch to fiber of pineapple leaf, to know the optimal process condition to obtain plastic with big tensile strength. Using 10 grams gadung starch, 100 mL of 0.5% acetic acid and 2.5 mL glycerin obtained optimum condition using 80oC, 90 minutes, 300 rpm stirring speed and weight  ratio of gadung starch to fiber of pineapple leaf is 10 : 1. By using the condition obtained by plastic with a tensile strength of 3.87 MPa. The FT-IR (Fourier Transform Infra Red) test on the plastics of this study shows that the plastic of this research is biodegradable plastic
PENGEMBANGAN SISTEM INFORMASI MONITORING KINERJA KEGIATAN PEMERINTAHAN MENGGUNAKAN FRAMEWORK SCRUM _, Muhaemin
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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A common problem faced by the planning (various Ministries / Agencies) is the difficulty of measuring the performance of activities and budget absorption capacity for the benefit of governance, especially in the two years back, where frequent cuts by the Ministry of Finance. Performance Monitoring Information Systems and Finance Program helps to process of planning and monitoring the implementation of activities that improve the ease of doing evaluation and reporting of producing quality data quickly and accurately. Application development of monitoring and evaluation activities in the planning department is using SCRUM which is part of the methodology AGILE which has a flexible nature can be applied to system development is quite dynamic changes are a result of requests from users who are not defined as to what form of reporting for process monitoring and evaluation activities at the planning Director General of Bina Bangda - Kemendagri.
KAJIAN TERHADAP TOOLS DAN FRAMEWORK SOCIAL MEDIA ANALYTICS UNTUK PEMANFAATAN DATA SOCIAL MEDIA DALAM PENELITIAN ILMU SOSIAL Negara, Edy Surya
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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The increasing of using social media in Indonesia has the impact to the available of data about society perception toward many issues of life, even though it comes as member/personality of live and citizen in the society. These phenomena have given an opportunity for stakeholders, such as government and private that need information about the society perception or social attitudes in their social life to improve quality and quantity of information through the using of the social media. The well understanding about technology of internet, social media, databases, data structure, theories of information, data mining, machine learning, and the technique for visualization data and information are needed to get and analyze the data to determine certain information which will be used by the users (stakeholders of the information). The target of this research is to master technology of social media analytic and develop prototype of software that will be used as tools of collecting data in social media, therefore, the users of the data can focus to get comprehension/understanding about social phenomena and take decision without looking for techniques for collecting and data analysis issues. This research is designed into explanatory with focus to the understanding technology through basis of social media, moreover, it is used to review advantages and disadvantages of techniques currently used in social media and media analytic researches. The result of this research is the tools and framework that benefit for media social analysis.
APLIKASI LINEAMENT DENSITY ANALYSIS UNTUK MEMBATASI POLA KALDERA PURBA GODEAN Verdiansyah, Okki
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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Godean area, is an isolated hills that’s occurs on Yogyakarta basin. Volcano occurences in Godean have issued by morphology, lithology and volcanic concepts. Volcanisme and magmatisme on Godean interpreted have similarity with Gajahmungkur – Wonogiri with hydrothermal event occurs. Lineanment Density Analysis used for interpretating the specific pattern, for strength the morphology and geological that have interpreted before. The methods that we used is combining of quantitative and qualitative. Geology of Godean consist of igneous and sedimentary rock with margins of Kulon Progo hill in western side. Caldera morphology, commonly have circular or a half circular pattern, with limited by steep relief. Morphology of Godean have caldera pattern, as a concept and compare with others. LD analysis are using image from slope directional angle processing on SRTM and ASRTER image, and then extract to lineament. Result of lineament extraction there are 9490 lines. Range of density with length from 0 to 9173,21 m/km2 with high value > 2375 m/km2  and count of lineament from 0 to 23 line/km2 with high value > 8 line/km2. Godean have high density with range of length 1930 – 2996 m/km2 or range of counts 9 – 12 line/km2. Base on the pattern, its looks the Godean and surrounding it differ on 3 major sectors, that’s outer rim, secondary rim, and circular  of late central eruption. Diameter of this pattern is wide (8 – 15 km), that must be proven with others geological and geophysical subsurface research.
REKAYASA PROTOTIPE E-MUSEUM SONGKET UNTUK MELESTARIKAN BUDAYA LOKAL SUMATERA SELATAN Andryani, Ria
Jurnal Teknologi Technoscientia Vol 9, No 2 (2017): Vol 9 No 2 Februari 2017
Publisher : IST AKPRIND YOGYAKARTA

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E-Museum is a digital creative modifications to the museum into an electronic web-based museum that can be accessed via the internet. Utilization of information technology in preserving the culture of the area into one of the strategies in introducing and promoting the cultural wealth of Indonesia to the international world. Development of E-Museum songket into one creative step the nation can do to keep the local culture in South Sumatra that is not lost with age, because the e-museum as a medium of information dissemination museum. Utilization of Web 2.0 technologies, databases, and viewing multimedia displays to show the diversity of types, songket motifs and colors are needed to be able to produce e-museum informative and high art, so reducing the value cultural values contained in the songket. The objective of this research is to build a prototype e-museum songket web-based and multimedia to provide clear information to Indonesian and international community about the local culture in South Sumatra in the form of songket. E-Museum will also be used as a means of preservation and promotion of local culture to the world internasinal South Sumatra. This research has produced a prototype that was developed using SDLC method.
PENGARUH VARIASI KONSENTRASI LIMBAH TERHADAP PENURUNAN KANDUNGAN TEMBAGA PADA PENGOLAHAN LIMBAH CAIR PROSES ETCHING DENGAN METODE ELEKTROLISIS Hindarti, Fifin
Jurnal Teknologi Technoscientia Vol 10, No 2 (2018): Vol 10 No 2 Februari 2018
Publisher : IST AKPRIND YOGYAKARTA

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The waste water of copper board etching process in Printed Circuit Board (PCB) production is kind of heavy metal waste water, that is copper, which has not been treated yet. In order to prevent the environment contamination process the waste water should be treated before thrown to environment. The kind of waste water treatment that will be applied to the waste water with heavy metal content, specially copper metal (Cu) is electrolysis method.The experiment was done in laboratory scale. The batch electrolysis reactor was used in this experiment, with the copper as katoda and stainless steel as anoda. Electrolysis process was conducted with waste concentration variation that was equal to 124,16; 110,96 ; and 35,84 ppm.The result of the experiment shows that, the electrolysis methode could reduce copper concentration in the waste water of etching process. The biggest efficiency degradation for the variation of waste concentration was happened at waste concentration 35,84 ppm, that was equal to 100%, with end result equal to 0 ppm. Waste concentration equal to 124,16 of ppm its result 96,24 ppm, and for concentration 110,96 ppm was got by result 0,35 ppm.

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