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All Journal Journal of Business and Management JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Berkala Ilmiah Pendidikan Fisika Info-Teknik AL-JAZARI JURNAL ILMIAH TEKNIK MESIN J-Dinamika: Jurnal Pengabdian Kepada Masyarakat AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Jurnal Pengabdian Al-Ikhlas Jurnal Sains Riset Jurnal Engine: Energi, Manufaktur, dan Material Community Development Journal: Jurnal Pengabdian Masyarakat AMMA : Jurnal Pengabdian Masyarakat
Firda Herlina
Program Studi Teknik Mesin, Universitas Islam Kalimantan MAB
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences

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Rietveld Analysis on X-Ray Diffraction Of South Kalimantan Kaolin Clays Febrianti, Rulliana; Herlina, Firda; Saukani, Muhammad
Berkala Ilmiah Pendidikan Fisika Vol 6, No 2 (2018): JUNI 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v6i2.4922

Abstract

At least 13 million tons of kaolin claystone lie in several regencies of South Kalimantan covering Banjar, Tapin, Hulu Sungai Utara and Kotabaru regencies. This paper reports an attempt to explore their crystalline state characteristics, projecting their potential use for geopolymer. Sungai Tabuk, Cintapuri and Tatakan, due to their largest kaolin claystone deposits, were chosen as the sampling sites. The kaolin samples were prepared by syphoning method prior to X-ray diffraction (XRD) characterizations in determining their crystalline phases. X’Pert HighScore Plus and Rietica software were respectively responsible for the qualitative and quantitative phase analyses. The qualitative analysis used search and match method at peak position and peak height between measured and calculated diffraction patterns. Our study revealed the existence of two main phases in the sample, i.e. quartz (SiO2) and kaolinite (Al2Si2O5(OH)4). In addition, the Quantitative analysis used the Rietveld method with the least squares method approach. Rietveld refinement was based on a goodness of fit score of less than 4% by minimizing the difference in the character of the diffraction pattern (position, height, width and peak shape) between the observed and the calculated XRD patterns. The Rietveld quantitative analysis shows, Tatakan is an area with kaolinite-richest deposit (±84%), followed by Cintapuri (±76%) and Tabuk (±70%); quartz is found in reverse.
PERENCANAAN PROTEKSI KEBAKARAN UNIT KOMATSU WA600-3 DENGAN FIRE SUPRESSION Hartadi, Budi; Herlina, Firda; ,, Harianto
AL-JAZARI JURNAL ILMIAH TEKNIK MESIN Vol 3, No 2 (2018)
Publisher : AL-JAZARI JURNAL ILMIAH TEKNIK MESIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (28.041 KB)

Abstract

Pada aktivitas pertambangan tidak luput dari jam operasional yang tinggi di daerah batubara dan suhu di sekitar mencapai 34o celsius yang berpotensi menyebabkan kebakaran pada unit komatsu WA600-3 (Wheel Loader). WA600-3 beroperasi di stock pile batubara menyebabkan panas berlebih (overheat) karena suhu di sekitar stock pile ataupun panas dari kebocoran sistem hidrolik yang menyebabkan menempelnya fine coal yang menyebabkan kebakaran. Penambahan proteksi kebakaran fire supression tipe LOP (Lose Of Pressure) dapat meminimalkan kerusakan dan kerugian pada saat terjadi kebakaran di PT. Kalimantan Prima Persada site Rantau. Sistem ini sangat efektif untuk mencegah unit terbakar karena aktif dengan suhu kerja (160 – 180o Celsius) pada detection tubing saat terjadi kebakaran dan juga bisa di aktifkan secara manual lewat knob internal actuator atau external actuator.
Design Improvement of Employee Performance Appraisal Management In PT Bina Kayu Lestari Tasikmalaya Herlina, Firda; Gustomo, Aurik
Journal of Business and Management Vol 4, No 8 (2015)
Publisher : Journal of Business and Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.034 KB)

Abstract

Abstract. Performance appraisal is one of the important components in the rational and systematic process of human resources management. The Primary reason for having a performance appraisal program is to monitor employee’s performance, motivate staff and improve the company morale. In PT Mantu, the monitoring employee performance requires routine is from the attendance there is still use manual attendance, which is accomplished through completing a performance appraisal form which call “Amano”. The current performance appraisal system is not have the formal procedure so that the effect for the employees is perceived unfairness of the performance review during the performance appraisal process. This research is done using quantitative and qualitative data to know the employee performance appraisal system in current system and how to improve this system to the future in PT Mantu. The current employee performance appraisal system in PT Mantu cannot increase the employee performance and increase the employee productivity because the company not clearly criteria to appraise the employee performance. Not have the formal procedure to performance appraisal process. Not use the formal performance appraisal form. This research have the recommendation such as: design of performance appraisal, the criteria of employee performance appraisal system is, method of employee performance appraisal and period of employee performance appraisal. Keywords: Employee Performance Appraisal, Performance Appraisal
Rietveld Analysis on X-Ray Diffraction Of South Kalimantan Kaolin Clays Ruliana Febrianti; Firda Herlina; Muhammad Saukani
Berkala Ilmiah Pendidikan Fisika Vol 6, No 2 (2018): JUNI 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v6i2.4922

Abstract

At least 13 million tons of kaolin claystone lie in several regencies of South Kalimantan covering Banjar, Tapin, Hulu Sungai Utara and Kotabaru regencies. This paper reports an attempt to explore their crystalline state characteristics, projecting their potential use for geopolymer. Sungai Tabuk, Cintapuri and Tatakan, due to their largest kaolin claystone deposits, were chosen as the sampling sites. The kaolin samples were prepared by syphoning method prior to X-ray diffraction (XRD) characterizations in determining their crystalline phases. X’Pert HighScore Plus and Rietica software were respectively responsible for the qualitative and quantitative phase analyses. The qualitative analysis used search and match method at peak position and peak height between measured and calculated diffraction patterns. Our study revealed the existence of two main phases in the sample, i.e. quartz (SiO2) and kaolinite (Al2Si2O5(OH)4). In addition, the Quantitative analysis used the Rietveld method with the least squares method approach. Rietveld refinement was based on a goodness of fit score of less than 4% by minimizing the difference in the character of the diffraction pattern (position, height, width and peak shape) between the observed and the calculated XRD patterns. The Rietveld quantitative analysis shows, Tatakan is an area with kaolinite-richest deposit (±84%), followed by Cintapuri (±76%) and Tabuk (±70%); quartz is found in reverse.
MENGETAHUI NILAI KEKERASAN DAN STRUKTUR MIKRO DARI BAHAN BAJA PEGAS DAUN AKIBAT PERLAKUAN PANAS DENGAN TEMPERATURE DAN PENDINGIN YANG BERVARIASI Firda Herlina; M. Firman; Edi Yani Fazri
INFO-TEKNIK Vol 16, No 1 (2015): INFOTEKNIK VOL. 16 NO. 1 2015
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v16i1.214

Abstract

One study on the effect of heating temperature, duration of heating and rapid cooling of the properties of hardness and microstructure of the steel hypoeutectoid. The study used a variation of heating temperature 780 ° C, 830 ° C, and 880 ° C with long holding time 2, 4 and 6 minutes, without any further heat treatment such as tempering. The maximum hardness value obtained is 62.7 HRC.This research was conducted in February 2015 through to completion. The research was carried out in several places that the sample preparation is done at home, while the hardness and microstructure test done at the Laboratory of Mechanical Engineering Uniska Banjarmasin, research methods were conducted in this study to prepare materials, Prepare samples is 35x30 mm, heat treatment is temperature of 400 ° C, 500 ° C and 600 °  , hardness test method brinell, and test microstructure.Research shows Effect of temperature variations with different cooling media for violence leaf spring steel used is, to the best hardness value of the heating temperature of 400 ° C, 500 ° C and 600 ° C is at a temperature of 400 ° C with a cooling medium used is air which its average value is 272.2 HB from 252.8 HB to the average raw material and Influence of temperature variations with different cooling media on microstructure of steel leaf springs are used, namely, to the best hardness from the heating temperature of 400 ° C, 500 ° C and 600 ° C is at a temperature of 400 ° C with air cooling medium in which the average value of 13% pearlite and ferrite average value of 87 % of the average raw material and ferrite 10.43% pearlite 89.57%,Keywords: Hardness, Steel, Temperature, Cooling
ANALISA TEKNIS PENGUJIAN KEKEDAPAN PENGELASAN PADA TANGKI TONGKANG DENGAN MEMBANDINGKAN METODE CHALK TEST, AIR PRESSURE TEST DAN VACUUM TEST Firda Herlina; M. Suprapto; Siswanto Siswanto
INFO-TEKNIK Vol 19, No 1 (2018): INFOTEKNIK Vol. 19 No. 1 Juli 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v19i1.5143

Abstract

PT. Dock & amp; perkapalan kodja nautical ( persero ) shipyard banjarmasin is a company that move in ship industry, development for shipbuilding industry large enough aims to meet the needs of countries will ships as a country maritime .In doing their activities, company got a job as the construction of ships new, work a serviceman a ship etc. The field of that is associated with welding, welding identical also with a flaw and fraud especially on the part affected a serviceman . Testing impermeability a tank were done in order to the examination of the possibility of mismanagement of a connection is welding and why ensure the quality of welds, an adequate number of qualified to leakage in the connection las can be seen from that there was an indication who occuring when testing done in the same manner .There are several a method of testing, and among the companies were a method of lime oil , water test and a vacuum test drives in .Chalk test drives in / lime oil is a method of welding stability testing traditional tank , water pressure test drives in is a method of welding stability testing a tank by the principle of the compressed air and a vacuum test drives in also made use of of the nature of soapy water , only on the implementation of the activity a method of testing is provided by way of an instrument a vacuum box shaped with one of the sides open and one of the sides made from the materials of glass . In the process of testing kekedapan welding a method of the most accurate in a reading of a point to leakage in connection las that is a method of water pressure test/the compressed air with flattened flattened a reading of a point leakage is more than 1 in any its testing. A method of tests need time in at least the process that is a method of vacuum test and water pressure test.Testing first method vacuum test 1.15 hours and water pressure test by 0.47 hours. Testing second method vacuum test 1.30 hours and water pressure test 1.20 hours. Testing third method vacuum test 0.40 hours and water pressure test 0.50 hours. Testing fourth method vacuum test 1.15 hours and water pressure test 1.20 hours. Testing fifth method vacuum test .30 hours and water pressure test 0.37 hours. Testing sixth method vacuum test 1.40 hours and water pressure test 1.30 hours.
PENAMBAHAN LINGKARAN PELINDUNG PADA TURBIN AIR ROTOR SAVONIUS Rendi Rendi; Firda Herlina
INFO-TEKNIK Vol 20, No 2 (2019): INFOTEKNIK VOL. 20 NO. 1 DESEMBER 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v20i2.7720

Abstract

The savonius water turbine has a main component, which is blade, the concave portion has a positive work and the convex blade has a negative work. Concave profiles in advancing blade as flow catchers and convex profiles on the returning blade as reflecting flow so that there is a difference in torque. The greater the torque difference the better the turbine performance. The way to enlarge this torque difference is by enlarging the drag force. This study aims to increase the difference in torque by adding a protective circle behind the blade advancing blade. This research uses Solidwork software to design turbines and Ansys CFX 19.2 software to analyze torque. Based on the analysis results, the addition of a protective circle can increase the difference in torque. The largest torque value is owned by the turbine with the addition of a protective circle 10 mm from the blade of 46,524 Nm, the largest power value is owned by the turbine with the addition of a protective circle 10 mm by 182 Watts and the greatest efficiency value is owned by the turbine with the addition of a protective circle 10 mm 50% turbine. The addition of a protective circle 10 mm away from the blade is the most optimal turbine geometry for use in water flow power plants, especially in slow-flow rivers.
ELEKTROKOAGULASI YELLOW-CGN DENGAN MENGGUNAKAN BAHAN YANG MUDAH DIDAPATKAN: PENGARUH WAKTU Novrian Dony; Firda Herlina
INFO-TEKNIK Vol 17, No 2 (2016): INFOTEKNIK VOL. 17 NO. 2 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i2.2496

Abstract

The aim of this research to find the effect of time in electrocoagulation of yellow gcn. Electrocoagulation process use material that eazy to find and simple. Electrode in this research use aluminium from the waste of aluminium board industry around Sasirangan Industri and use carbon from battery. Current in Electrocoagulation processes use handphone. Result shown that effective time is used in electrocoagulation is 4 hours and 4 hours to wait yellow gcn coagulate.
PENGARUH PUTARAN TURBIN ANGIN SUMBU HORIZONTAL KOMBINASI PEMBERAT BOLA PEJAL Firda Herlina; Mujiburrahman Mujiburrahman; Adi Asyari
INFO-TEKNIK Vol 21, No 1 (2020): INFOTEKNIK VOL. 21 NO. 1 JULI 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i1.8968

Abstract

Along with the increase in population is directly proportional to the need for energy sources both to support people's lives and the increase in the industrial sector in Indonesia. One of the most widely used sources of electricity is wind. Wind turbines are very sensitive to the wind speed they receive, as a result of fluctuations in wind speed that affect wind rotation speed. For this reason, the author has the idea to combine a wind turbine with a solid object turbine, it is hoped that the combination can produce more consistent rotation. The tool used is a wind turbine combined with solid blade ball weights 8, 9 and 10 and ballast of 10 gr, 20 gr and 30 gr for each blade and wind speeds of 3.3 m / s, 3.6 m / s and 3.9. m / s with the experimental research method, the experiment was carried out 3 times in each tool for ± 2 minutes which was expected to produce a combination of the variables studied in the form of a turbine with the maximum rotational speed and the most consistent rotation. From these experiments, it was found that a turbine with 10 blades, a weight of 10 gr at a wind speed of 3.9 m / s had the fastest rotation, namely 116.43 rpm while a 9 blade turbine with a weight of 30 gr at all three wind speeds was the turbine with the most consistent rotation, namely the difference between the top and bottom rotation is 2.53 rpm.
PENGAMBILAN CHROM PADA LIMBAH ELEKTROPLATING Firda Herlina
INFO-TEKNIK Vol 14, No 2 (2013): INFOTEKNIK VOL. 14 NO. 2 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v14i2.302

Abstract

Tanning industry wastewater includingliquid wasterequires special carebecausethe rest of the ingredients Tanning  perishable sand the amount of metal ions that can cause pollution and danger toliving things. Electrocoagulation process has be enevaluated as an alternative technology to reduce the concentration of chromium from Tanning  effluent. Elektrokoagulator electrocoagulation performed in a batchstirred by using a pair of metal electrodes with dimensions of technical 100-25-0.5mm. By variation of the length of time from 15 minutes to astirring 75 min, the variation speed of 120 rpm stirring to 600 rpm, and the variation of the degree of acidity of 4-8.  The results showed that the concentration of chromiumin the waste water can be reduced by using electrocoagulation of 2435.714 mg/Lup to2.84 mg/L.
Co-Authors ,, Harianto Abdurrahman Sidiq Adawiyah, Robiyatul Adi Asyari Agus Setiawan Ahmad Rizani Ahmad Royani Amin, Ahmadil Arifin , Jainal Arifin, Jainal Aurik Gustomo Budi Hartadi Budi Hartadi Budi Hartadi Budi Hartadi Dony, Novrian Dwi Retnosari Edi Yani Fazri Faisal Rahman, Faisal Febrianti, Rulliana Firman, Muhammad Gusti Rusdy Furqon Syahrillah Harianto , Hartadi , Budi Hartadi, Budi Hazairin Heri Irawan Iman, Hendi Cahya Jainal Arifin Jainal Arifin Jainal Arifin Jainal Arifin M. Firman M. Marsudi M. Suprapto Muhamad Syarif Muhammad Firman Muhammad Firman Muhammad Firman, Muhammad Hatif Martadinata Muhammad Irfansyah Muhammad Irfansyah Muhammad Najib Muhammad Nasyirul Hakim Muhammad Saukani Muhammad Suprapto Muhammad Suprapto Mujiburahman Mujiburrahman Mujiburrahman Panca Asmara, Yuli Panca, Yuli Prihatini Ade Mayvita Rendi Rendi Rendi Rendi Rendi Rendi Rendi Rendi Robiatul Adawiah, Robiatul Ruliana Febrianti Saukani, Muhammad Sidiq, Abdurahim Siswanto Siswanto Sobar Ihsan Sri Wulandari, Dyah Trianiza, Ice Wiramsya Oscar, Agus Yassyir Maulana