Politeknosains http://jurnal.politama.ac.id/index.php/jp <p>Jurnal Teknik Politeknik Pratama Mulia</p> Politeknik Pratama Mulia Surakarta en-US Politeknosains 1829-6181 <p><strong><span style="text-decoration: underline;">Authors who publish with this journal agree to the following terms:</span></strong></p> <ul> <li style="text-align: justify;">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li style="text-align: justify;">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li style="text-align: justify;">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).</li> </ul> Analisis Persentase Fraksi Massa Lolos Ayakan Batu Granit Hasil Peremukan Jaw Crusher dan Double Roll Crusher http://jurnal.politama.ac.id/index.php/jp/article/view/172 <p>Granite is one type of acid rock widely used in the construction sector. Granite mining results <br>are sometimes still large, to reduce the size of granite is need comminution process. Comminution <br>is one of the stages in the processing of minerals that aims to minimize the size of minerals. This <br>study purpose to analysis percentage of mass fraction passing sieve from granite that has been <br>crushed through a jaw crusher and double roll crusher followed by fraction analysis using sizing <br>process. The result of analysis showed that the percentage of mass fraction passing sieve from <br>granite sieve resulted from crushing and sizing of jaw crusher was 15.8 mm = 93,7%, 12,7 mm = <br>67,2%, 7,9 mm = 34% 4.75 mm = 23.9% and 1.18 mm = 9.7%. In the analysis of percentage mass <br>fraction escaped sieve granite result from crushing and sizing from tool double roll crusher is size <br>6,3 mm = 97,8%, 2,36 mm = 49,9%, 1,18 mm = 29,2 %, 0.425 mm = 13.6% and 60 mesh = 8.8%.</p> Sy. Indra Septiansyah Idris Herkan Afandi ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 77 86 Penentuan Struktur Urat Kuarsa (Vein) Berdasarkan Respon Geolistrik Resistivity Pada Lokasi X Kabupaten Ketapang Kalimantan Barat http://jurnal.politama.ac.id/index.php/jp/article/view/170 <p><em>Geoelectric resistivity method is a geophysical method commonly used in the interpretation of </em><br><em>the subsurface by injecting an electric current down the surface to obtain information about the </em><br><em>distribution of the value of resistivity of the rock. This study aims to identify the structure of a quartz </em><br><em>vein (vein) which is thought to contain gold mineral at the location x. Measurements carried out as </em><br><em>many as three tracks with electrodes spaced 5 meters, each 75 meters long, and the penetration </em><br><em>depth of 15 meters from surface. Results obtained from the data processing is done with a software </em><br><em>tool Res2dinv the form of a cross section 2D resistivity. From the data processing is seen that </em><br><em>possible zonasilification as quartz vein (vein) and is thought to contain gold mineral found at an </em><br><em>elevation of 602-610 meters . While the 3D model of the interpolated trajectory I and II shown that </em><br><em>uric guess shaped Massive Vein.</em></p> Firman Firman Herman Herman ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 61 67 Rancang Bangun Alat Pengering Pakan Ikan Dengan Sistem Pemanas Konveksi Paksa http://jurnal.politama.ac.id/index.php/jp/article/view/169 <p>The natural drying proses that is required to dry pellet fish have some shortages, such as : a <br>long time and need some time reversal process. Because of this dryer is designed using artificial <br>heating system with forced convection. Dryers is designed for the capacity of 2 kg per hour. It has <br>components : dryer room, plats, space heating, hot conduit, a chanel for the fan and the evaporation <br>air stream through all the components. LPG is used as fuel and heating burner is completed with <br>an on off system controler. To dry 2 kg of fish pellet with 30% to 15% water content required 5 <br>pieces of plats 30 cm x 30 cm dry air flowrate 17 m3/menit. After drying, the water can be <br>evaporated from pellet was 0,3 kg. In one-time process dryer can produce 1,7 kg pellet. From the <br>test conducted, the time required to dry 2 kg of fish pellet only takes 32 minutes. With room <br>temperature is set 60-80 oC.</p> Yusuf Yusuf ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 55 60 Program Aplikasi Tata Kelola Perpustakaan Program Studi Sistem Komputer Universitas Surakarta Berbasis Visual Basic 6.0 http://jurnal.politama.ac.id/index.php/jp/article/view/168 <p><em>At the University of Surakarta , especially in Computer Systems Studies Program , there have </em><br><em>their own library . Nevertheless , the books contained in the library , yet can be used by students of </em><br><em>Computer Systems . This is because there is no system to regulate the governance of the library . </em><br><em>Based on these problems , the researchers were motivated to create a library of application program </em><br><em>is implemented by the library for Computer System Studies Program University of Surakarta. In </em><br><em>making the application program this library , before making the database . Researchers collecting </em><br><em>data first. When the necessary data has been collected, and researcher to design and manufacture </em><br><em>a database . Databases created using MySQL . Then create a library of application program using </em><br><em>Visual Basic 6.0 . After that create a report using Crystal Report 8.5 . When making the application </em><br><em>program has been completed, a periodic testing program to detect if an error in the program. </em><br><em>Implement a computerized system in the library of the University of Surakarta Computer Systems </em><br><em>can ease the workload of the librarian. Besides process transactions, borrowing , repayment </em><br><em>transaction and the book search can be done more easily and more quickly .</em></p> Taruna Perkasa Cicilia Puji Rahayu ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 47 54 Pemanfaatan Tailing Bauksit Sebagai Bahan Campuran Pengganti Pasir Pada Pembuatan Paving Block http://jurnal.politama.ac.id/index.php/jp/article/view/167 <p>Bauxite tailing is a by product of bauxite washing. The amount of waste from the bauxite tailings <br>can reach about 50% of the dry weight of the bauxite before washed. The increasing demand for <br>bauxite causes the amount of exhaust produced to be even greater. This risks causing environmental <br>pollution problems requiring an alternative treatment and one of the solutions is utilize the bauxite <br>tailings as a mixture of sand substitutes in the manufacture of paving blocks. The role of sand is <br>replaced by a 50% increase in market price so that in this study a compressive strength test will be <br>conducted on the strength of paving blocks with sand mixture (as sold in the market) with paving <br>blocks with bauxite tailings mixed then comparison. This utilization is to minimize the <br>environmental impacts, to reduce the accumulation of materials at the washing site, and in the <br>future can be increasing value products that become business opportunities for affected <br>communities due to bauxite mining. Based on the research, there is a found the average value of <br>uniaxial compressive strength of sampel 50% : 50% is 17.19 Mpa. That is smaller than the value of <br>uniaxial compressive strength of sampel 60% : 40%, 17.62 MPa. The meaning of compressive <br>strength value of the sample is 60%: 40% more optimal than the sample with the ratio 50%: 50% <br>because the value of compressive strength is included in SNI-03-0691-1996 ie on the quality of B.</p> Maya Santi Syarifah Aqla ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 42 46 Rancang Bangun Unit Destilasi Solar Heater http://jurnal.politama.ac.id/index.php/jp/article/view/165 <p>The difficulty of the community in the coastal areas in meeting the needs of clean water until <br>now a problem that has not been solved. An alternative effort that can be done for the provision of <br>clean water is to utilize seawater through several processing processes. One of the practical<br>processing and environmentally friendly way is through the process of solar energy distillation. <br>Distillation is another term for distillation, ie the heating process of a material at various <br>temperatures, without contact with the outside air. The purpose of this research is to know the <br>working system of distillation of solar energy of type two roof, with working principle of destilator <br>tool placed in place not protected by sunlight, container of destilator filled with seawater as much <br>as 40 liters with height 10 cm from destilator container surface. Based on the analysis of research <br>that has been done, the temperature of the environment and the temperature of the glass is not much <br>different and the changes are directly proportional because the absorption of heat on the glass is <br>very small. For hot water temperatures compared to ambient temperatures and glass temperatures, <br>the temperature changes are not too fast due to the influence of water-absorbing power and the <br>absorption of hot sand which becomes the base of the distillator, so that the water temperature is <br>higher than the ambient temperature and the glass temperature. The faster the temperature of the <br>environment and the temperature of the glass goes down the more clean water is produced.</p> Asep Ruchiyat ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 32 41 Estimasi Sumberdaya Untuk Data Dengan Distribusi Lognormal Pada Endapan Urat Emas Gunung Pongkor Dengan Pendekatan Geostatistik http://jurnal.politama.ac.id/index.php/jp/article/view/171 <p>This study aims to determine the method of estimation and data processing are suitable to the <br>lognormal distribution data. Data obtained from the assay data of gold vein mineralization from <br>Gunung Pongkor, West Java. Data provided are relatively only a few or not proportionate to the <br>volume of mineral bodies, range of space (average 50 m to the north), as well as lognormal <br>distribution data. Data collection was enlarged by conducting composites within 1 m, resulting in <br>828 points. Furthermmineral, the data is divided into the data without a top cut and the data with <br>a top cut, for the benefit to estimate data also has been transformated into logarithm. Variogram <br>modeling performed on each data to get a geostatistical parameters. The estimation method that <br>used are methods such as of Ordinary Kriging (OK), Lognormal Ordinary Kriging (OLK) and <br>Sichel's t-estimator. The criteria used suitably is the correlation coefficient value estimation results <br>with actual levels valued mmineral than 0.6. Assumptions for the best method is the method that <br>has the best accuracy between the regression line with line bisector and for the method that has a <br>variance estimation is a method which has an average smallest variance estimation. The cumulative <br>distribution curve estimation results show the difference in the results of the estimates using the <br>data without a top cut and the data with a top cut. This research resulted in the values of the <br>correlation coefficient from the three methods are mmineral than 0.6. The most appropriate <br>regression line with a line bisektor is Lognormal Ordinary Kriging method (OLK) both use the data <br>without a top cut and the data with a top cut and the average of smallest variance estimation is a <br>method of Ordinary Kriging (OK) that use data with the top cut.</p> Idris Herkan Afandi M. Nur Heriawan ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 68 76 Peningkatan Komunikasi Matematik Melalui Model Desain Pembelajaran Assure Berbasis Visual Basic http://jurnal.politama.ac.id/index.php/jp/article/view/175 <p>The purpose of this research was to find out the the effect of using ASSURE instructional design <br>model based Visual Basic learning media to mathematical communication. This type of research is <br>classroom action research. Methods of data collection of this study was by observation, test method, <br>field note, and documentation. Data analysis techniques consist of data analysis process, data <br>presentation, and data verification. The results of this study indicate an increase in students' <br>mathematical communication. This is seen from the indicators: (1) the ability of students to express <br>the symbols, notations, and mathematical equations completely and correctly before the action <br>31.25% and after the action 87.50%, (2) the ability of students in raising the problem / issue before <br>action 18.75% and after action 68,75%, (3) student ability to respond problem / problem from other <br>student before action 12,50% and after action 56,25%, and (4) ability of student to explain <br>conclusion obtained before action 37.50% and after action 87.50%.</p> Desi Tri Utami ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 1 6 Sonorejo Culture Village Documentary Menggunakan Aplikasi Sony Vegas 13.0 http://jurnal.politama.ac.id/index.php/jp/article/view/176 <p>This research aims to spread the means as information about artisans or arts businessmen in <br>Sonorejo area. Previously some people who know about the efforts that exist in the area of <br>sonorejo.information packed in a video is expected to provide information to the public and can be <br>understood, understood by the audience and can be used as a document in the village of Sonorejo. <br>The main software used is the Sony Vegas 13.0. The entire video is a duration of 5.4 minutes <br>consisting of 20 scenes. The products displayed include shadow puppets, drums and calligraphy <br>paintings. The main source is the head of Sono rejo urban village, namely Mr. Widie Hastono, SE., <br>MM. Regardless of the type and model of public service ads, basically public service advertisements <br>should be able to carry external functions with media that provide information clearly, attractively <br>and easily understood by the public in outline.</p> Devi Rizki Zahrahwani ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 7 12 Media Pembelajaran Anak Usia Dini Dan Siswa Sekolah Dasar Berbasis Macromedia Flash 8 http://jurnal.politama.ac.id/index.php/jp/article/view/177 <p>Most of lessons for children in a house or even in a school still use learning methods that use <br>written module as a media. However, technology that is developed to be a reason to reduce the use <br>of written learning media or module that is substituted by digital books. For students, learning <br>digital books are more interested than written module because those can be more interactive to <br>learn. Therefore, it is needed to develop a learning media that is liked by the students. Research <br>method used is research and development. The steps in the research process are analysis, designs, <br>developments, implementations, and testing. Testing is validity that is done by expert judgments. <br>Then, media is tested by the students. After the implementation of validity and media meet the <br>criteria, they are tested or investigated to know the feasibility in the field. This research is aimed to <br>know the result of the development from educating calculated game and the introduction in the <br>name of fruits and animals using macromedia Flash 8, to know the feasibility interactive calculated <br>media and to know the name of fruits and animals as learning media to increase the learning result <br>for elementary schools students grade 1 and early childhoods based macromedia flash, and to know <br>the feasibility as a learning media. Therefore, it can be concluded that interactive calculated <br>learning media and to know the name of fruits and animals can be used as learning media in <br>learning process.</p> Nuning Melianingsih ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 13 19 Pembentukan Karakter "Sayang Binatang" Pada Anak Usia Dini Dengan Macromedia Flash 8 http://jurnal.politama.ac.id/index.php/jp/article/view/178 <p>The development of games increases very fast. It can be seen by there are many kind of games. <br>Here, the writer would like to create a game which is interesting and able to improve the way to <br>love animals. The players are demanded to solve problems in each stage of game. Game status, <br>instructions, and tools are provided by a game will guide players actively to look for information <br>which are able to enrich their knowledge and strategy to play. To create a game, the writer needs <br>Macromedia Flash 8. There are 12 kinds of main Sprite in this game and 3 rooms. To continue into <br>the next level, the player should pass at the previous level. This game belongs to Action Platformer <br>2D which aims as the bridge to educate children. The game in level 1 spends around 1 minute, in <br>level 2 is around 2-3 minutes, in level 3 is around 3-5 minutes. This game has passed testing step <br>which was done at Windows 8.1 Enterprise 32 bit and Windows 10 Enterprise 64 bit.</p> Dita Anggi Purbasari ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 20 25 Aplikasi Sistem Informasi Berbasis Web Dalam Menunjang Komunikasi Publik http://jurnal.politama.ac.id/index.php/jp/article/view/179 <p>Many events are hold especially in Solo, they run in social, education, religion, entertainment, <br>etc. In this case, communication has a big role to inform and promote an event to public, and one <br>of the successes of an event can be indicated by many visitors who participate in the event. <br>Participant’s number of an event is influenced by the way and the strategy of promotion. It is <br>important for event organizer to pay attention about it. This article is initiated by many events which <br>are conducted in Solo however the information of the events are not well organized yet. Therefore <br>this article discusses about a web system application as media solution to promote and inform the <br>events to public. The website uses programming language including HTML and PHP with database <br>MySQL. The research method includes analyzing system, designing system, and implementing <br>system. The result of the research is a web system application of event that is used as a medium for <br>promoting and informing solo events which can be accessed by people everywhere and every time.</p> Annisa Nur Fatimah ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1 26 31 Cover dan Kata Pengantar http://jurnal.politama.ac.id/index.php/jp/article/view/180 <p>Halaman Judul dan Kata Pengantar</p> Politeknik Pratama Mulia ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 2018-04-02 2018-04-02 17 1