http://jurnal.politama.ac.id/index.php/jp/issue/feed Politeknosains 2018-04-03T09:56:33SE Asia Daylight Time Harjono poltek@politama.ac.id Open Journal Systems <p>Jurnal Teknik Politeknik Pratama Mulia</p> http://jurnal.politama.ac.id/index.php/jp/article/view/172 Analisis Persentase Fraksi Massa Lolos Ayakan Batu Granit Hasil Peremukan Jaw Crusher dan Double Roll Crusher 2018-04-02T09:30:45SE Asia Daylight Time Sy. Indra Septiansyah indraqadrie@gmail.com Idris Herkan Afandi indraqadrie@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/170 Penentuan Struktur Urat Kuarsa (Vein) Berdasarkan Respon Geolistrik Resistivity Pada Lokasi X Kabupaten Ketapang Kalimantan Barat 2018-04-02T09:33:11SE Asia Daylight Time Firman Firman firman_doank89@yahoo.com Herman Herman firman_doank89@yahoo.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/169 Rancang Bangun Alat Pengering Pakan Ikan Dengan Sistem Pemanas Konveksi Paksa 2018-04-02T09:34:02SE Asia Daylight Time Yusuf Yusuf yusufpolitap@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/168 Program Aplikasi Tata Kelola Perpustakaan Program Studi Sistem Komputer Universitas Surakarta Berbasis Visual Basic 6.0 2018-04-02T09:35:05SE Asia Daylight Time Taruna Perkasa tharunaPerkhasa@ymail.com Cicilia Puji Rahayu tharunaPerkhasa@ymail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/167 Pemanfaatan Tailing Bauksit Sebagai Bahan Campuran Pengganti Pasir Pada Pembuatan Paving Block 2018-04-02T09:36:08SE Asia Daylight Time Maya Santi mayasantisudiro@gmail.com Syarifah Aqla mayasantisudiro@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/165 Rancang Bangun Unit Destilasi Solar Heater 2018-04-02T09:37:02SE Asia Daylight Time Asep Ruchiyat as3p78@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/171 Estimasi Sumberdaya Untuk Data Dengan Distribusi Lognormal Pada Endapan Urat Emas Gunung Pongkor Dengan Pendekatan Geostatistik 2018-04-02T09:38:32SE Asia Daylight Time Idris Herkan Afandi ha_idris@yahoo.co.id M. Nur Heriawan ha_idris@yahoo.co.id <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/175 Peningkatan Komunikasi Matematik Melalui Model Desain Pembelajaran Assure Berbasis Visual Basic 2018-04-03T09:25:18SE Asia Daylight Time Desi Tri Utami desitriutami@yahoo.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/176 Sonorejo Culture Village Documentary Menggunakan Aplikasi Sony Vegas 13.0 2018-04-03T09:30:56SE Asia Daylight Time Devi Rizki Zahrahwani devirizki9@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/177 Media Pembelajaran Anak Usia Dini Dan Siswa Sekolah Dasar Berbasis Macromedia Flash 8 2018-04-03T09:45:20SE Asia Daylight Time Nuning Melianingsih nuningmelia@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/178 Pembentukan Karakter "Sayang Binatang" Pada Anak Usia Dini Dengan Macromedia Flash 8 2018-04-03T09:48:28SE Asia Daylight Time Dita Anggi Purbasari ditata92@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/179 Aplikasi Sistem Informasi Berbasis Web Dalam Menunjang Komunikasi Publik 2018-04-03T09:51:32SE Asia Daylight Time Annisa Nur Fatimah anisa.nurfa@gmail.com <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> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement## http://jurnal.politama.ac.id/index.php/jp/article/view/180 Cover dan Kata Pengantar 2018-04-03T09:56:33SE Asia Daylight Time Politeknik Pratama Mulia editorpoliteknosains@gmail.com <p>Halaman Judul dan Kata Pengantar</p> 2018-04-02T00:00:00SE Asia Daylight Time ##submission.copyrightStatement##