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PENGEMBANGAN PROGRAM PELATIHAN KEPRAMUKAAN GOLONGAN PENEGAK PADA MAHASISWA PENDIDIKAN GURU MADRASAH IBTIDA’YAH IAIN PONTIANAK Komalasari, Komalasari; Komalasari, Aunurrahman; Usman, Andi
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 7, No 10 (2018): Oktober 2018
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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Abstract

AbstractThis Development of Scouting Training Program of Enforcement Group for students of School Teacher of Madrasah Ibtida'yah Department of IAIN Pontianak is based on the low ability and skill of students in understanding scouting concept which refers to General Skill Requirements (SKU) and Special Skills Requirements (SKK). The objective of Development of Scouting Training Program of Enforcement Group is to produce a curriculum that can be used independently through training activities that are expected to assist the students in understanding the concept of scouting in accordance with the SKU and SSK effectively.The development model used in this Thesis uses a PLOMP model that has 5 stages: 1). Preliminary Investigation Phase 2). Design Phase 3. Realization/ Construction Phase 4). Test, Evaluation and RevisionPhase and 5). Implementation Phase. The results of the Thesis showed that the classes of design of the scouting training programconsisted of (1) Analysis of students (learners / scouts), materials and tasks (2) Implementation of enforcement scouting training program (3) Result of skill practice from the enforcement scouting training program on students. The development phase of the module begins with the preparation of weekly, monthly training program, materials and training media as well as media review and materials by experts showing media and materials have met the eligibility criteria for field trials, 35 students who show positive response (interested) in attending the scouting activity of the enforcement group. Obtaining the results of student practice after following shows that students can easily understand the concepts and skills of students in completing SKU. Keywords: Development, Training Program, Scouting, Enforcement Group, PLOMP Model.
EKSTRAK DAUN BAMBU TALI (GIGANTOCHLOA APUS) SEBAGAI GREEN INHIBITOR TERHADAP LAJU KOROSI BAJA KARBON DALAM MEDIA HCL Hayyuka, Abdullah Agung; Komalasari, Komalasari; Irianty, Rozanna Sri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Corrosion is a decrease in the quality of a metal due to an electrochemical reaction between the metal and its environment. The use of inhibitors is the right way to protect the internal partsof metal pipes from corrosion. Gigantochloa apus leaves extract can be used as a natural inhibitor. This research aims to characterize the results of Gigantochloa apus leaves extract, determine the rate of corrosion in carbon steel with the addition of inhibitors from Gigantochloa apus leaves extract, and determine the variables that affect the corrosion rate.The extraction method used is soxhletation with an ethanol:distilled water ratio of 1:4. The variables used in the form of 0.5M, 1.0M, 1.5M HCl media variations and immersion time for 24, 32, 40 hours with inhibitors concentration of 2 g/L and weight loss method in carbon steel. The results showed that Gigantochloa apus leaves extract contained tannin compounds (phenolic OH groups), namely in waves 3234.76 and 3350.50 cm-1 as much 17.54 mg/g. The best corrosion rate inhibitors on carbon steel are 17.65 mpy at corrosive media HCl 1M and immersion time 20.69 hours. Corrosion rate test on carbon steel showed that the influential variable was immersion time, concentration of corrosive media and inhibitors concentration.Keywords: central composite design, corrosion rate, gigantochloa apus leaves, inhibitors
Efek Temperatur Terhadap Bentuk Partikel Hidroksiapatit Dari Precipitated Calcium Carbonate (PCC) Kulit Telur Itik Melalui Metode Presipitasi Tanjung, Muhamad Adrian; A, Yelmida; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Hydroxyapatite (Ca10(PO4)6(OH)2) is the most stable form of calcium phosphate, which is widely used in various medical applications, mainly in orthopedics and dentistry due to it’s similarities with inorganic mineral component of bone and teeth. However, in spite of chemical similarities, mechanical performance of synthetic hydroxyapatite is very poor compared with that of natural bone. It is possible to improve the properties of hydroxyapatite ceramics by controlling important parameters of powder precursors such as particle size, particle shape and agglomeration. Generally, natural or synthesized hydroxyapatite particles have rod-like and spherical-like. Different shapes of hydroxyapatite will affect biological response to human body, and the adaptation of osteoblast with hydroxyapatite. In this work, the synthesis of hydroxyapatite with various shapes has been done succesfully with the aid of precipitation method, by controlling the temperature. Spherical-like hydroxyapatite was synthesized at 30oC, rod-like hydroxyapatite was synthesized at 50oC and 70oC, and needle-like hydroxyapatite was synthesized at 90oC. FTIR analysis showed that the apatite compound has been formed with the absorption of PO4 3- and OH - ion at the wave number 1027.64, 1026.96, and 3301.69 cm-1. XRD analysis showed the similarities with standard hydroxyapatite ICDD 01-074-0566. The degree of crystallinity will be higher as long as temperature increased.Keywords: hydroxyapatite, particle shape, duck eggshells, temperature, precipitation method
PEMBUATAN BAHAN BAKAR PADAT DARI PELEPAH SAWIT DENGAN TAPIOKA SEBAGAI FILLER MELALUI PROSES DENSIFIKASI Nasution, Muhammad Hatta; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Palm frond only used as a source of raw materials for animal feed, compost and organic fertilizer in the plantation. Palm frond has a calorific value of 15,18 MJ/kg with a density of 0.138 g/cm3. The calorific value can be increased by densification. Densification is one method to increase the density of the biomass so that it will increase the calorific value of the biomass. The purpose of this research is to produce solid fuel products from palm fronds uses densification process, to determine the characteristics of the product and determine the effect of tapioca filler composition and pressure at densification for density, calorific value and proximate. The composition of tapioca filler used were 5, 10 15 and 20%. Pressure used were 50, 75 and 100 bar. The particle size used were less than 20 mesh. The highest density of the product is 0.858 gr/cm3 was obtained at tapioca filler composition 20% and pressure 100 bar. The highest calorific value of the product is 16,16 MJ/kg was obtained at tapioca filler composition 15% filler and pressure 75 bar. Variations of filler composition and pressure give a significant effect the density of the product.Keywords : Densification, Density, Filler, Pressure, Palm Fronds.
Pembuatan Briket Pelepah Sawit Menggunakan Proses Torefaksi Pada Variasi Tekanan Dan Penambahan Perekat Tapioka Pratama, Yudistira; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Palm frond so far only used as a source of raw materials for animal feed, compost and organic fertilizer in the plantation. Palm frond has a calorific value of 15184.05 kJ/kg with a density of 0.1383 g/cm3. The calorific value can be increased by densification. Dencification is one method to increase the density of the biomass so that it will increase the calorific value of the biomass. The purpose of this research is to produce solid fuel products from palm fronds uses densification process, to determine the characteristics of the product and determine the effect of tapioca adhesive composition and pressure in the process of densification in density, calorific value and proximate. Tapioca adhesive composition used were10, 20, 30 %. Pressure used were50, 75 and 100 bar. The particle size used were < 20 Mesh . The highest density and calorific value of the product is 1.1375gr/cm3and 5144,94cal/gr was obtained at tapioca adhesive composition 30% and pressure 100 bar.Keywords :Densification, Density, Tapioca Adhesive, Pressure, Palm Fronds.
Pengaruh Penambahan Pati Jagung Pada Pembuatan Prototipe Tulang Menggunakan Metode Starch Consolidation Prabowo, Agung; Fadli, Ahmad; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Hydroxyapatite (HA) is a crystalline molecule composed of phosphorus and calcium. One technique for fabricated porous HA is the starch consolidation method. The objective of this study was to determine the effect of starch addition on porous HA. The study was conducted by mixed HA as much as 20 grams with the amount of starch 8, 10, 12 and 14 grams of corn starch, and 25 ml of distilled water to form a slurry. The slurry formed is then stirred at 400 rpm. The mixture is then poured into a mould. Then the mixture in the mould was heated to 100oC for 60 minutes. After that, the green bodies are removed from the mould and dried in an oven at 80°C for 24 hours and 110°C for 8 hours. The dried sample is then put into the furnace. Combustion is carried out at a temperature of 600˚C and ended with sintering at a temperature of 1250˚C each for 1 hour. Increasing the addition of starch causes the greater of the shrinkage and porosity, and the density and bending strength is getting smaller. Sintered bodies show shrinkage in the range of 35.47–47.46%, porosity 22.0-37.75%, density 1.97-2.46 gr / cm3, bending strength 0.33-2.33 MPa and pores size obtained is in the range of 80-150 μm.Keywords: bone replica; hydroxypatite; porosity; starch
Pengaruh Steam Quality Terhadap Produksi Minyak Di PT CPI Fazly, Erwin; Fadli, Ahmad; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Crude oil is one of Earth product that obtained with various process and lifting method up to surface. Crude oil at Duri field PT CPI within into heavy oil, viscous and contain a lot of sand based on it’s characteristic, so that steam injection into reservoir is needed for making oil mobilization to well production easier. The objective of research to learn about effect of steam quality to oil production in Duri area. Research was held by varying steam generator feed water flow rate of 104 gpm and 105 gpm, steam quality variation of 72%, 73% and 74%. Steam quality sample was taken in each steam generator to be counted, then adjustment of burner positioner was needed when steam quality did not achieve. Oil production data was taken after it’s trend shown steady. Result of research were show that steam quality increment from 72% to 73%, average oil production rose up to 68 bopd and from 73% to 74%, rose up to 18 bopd. The highest steam quality effectivity in 73% at steam generator feed water flow rate of 105 gpm and fuel rate of 8550.57 Mscfd, with oil production rate of 5234.34 bopd.Keyword : reservoir, steam generator, steam quality
Proses Densifikasi Pelepah Sawit Menggunakan Crude Gliserol Sebagai Filler Menjadi Bahan Bakar Padat Yudha, Ricky Satria; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Empty fruit bunches only used as a source of raw materials for animal feed, compost and organic fertilizer in the plantation. Palm empty fruit bunches has a calorific value of 18.795 kJ/kg. The calorific value can be increased by torefaction. Torefaction is one composing method with temperature 200 - 300°C to increase the density of the biomass so that it will increase the calorific value of the biomass. The purpose of this research is to produce solid fuel products from palm empty fruit bunches uses torefaction process, to determine the characteristics of the product and determine the effect of glycerol filler composition and pressure in the process of densification in density, calorific value and proximate. The variables for this research were glycerol filler composition (10, 20 and 30%) and pressure (50, 70 and 80 bar). The particle size used were less than 20 mesh. The highest density of the product was 0.6893 gr/cm3 which obtained at 10% composition and 50 bar. The lowest ash content of the product was 8.91% which obtained at 30% composition and 80 bar. The lowest moisture of the product was 0.91% which obtained at 10% composition and 80 bar. On the other hand, it produced highest fixed carbon and calorific value for 45.47% and 24011.77 kJ/kg, respectively.Keywords: torefaction, density, calorific value, filler, palm empty.
Bahan Bakar Padat Dari Tandan Kosong Sawit Menggunakan Proses Torefaksi Dengan Variasi Suhu Dan Waktu Torefaksi Zen, Muhammad; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Empty fruit bunches (EFB) can be used as alternative energy source by using torrefaction process. Torrefaction is a pre-treatment process of biomass into solid fuel within temperature range of 200-300oC in an inert condition. The Torrefaction process research aims to produce solid fuel from EFB and study the effect of process variabel towards characteristic of solid fuel resulted. Torrefaction of empty fruit bunch was using fixed bed horizontal reactor with temperature (250-300oC) and torrefaction time (15-45 minute). Product quality resulted was calorific value, mass yield, energy yield and proximate (moisture content, ash content, volatile content and fixed carbon). The result obtained for calorific value in range was 19883.03-23165.96 kJ/kg, mass yield was 47.93-71.64 %, and energy yield was 65.09-86.39 %. 17091.03-20697.13 kJ/kg, mass yield was 35.95-59.91 %, and energy yield was 50.97-72.91 %. Proximate analysis resulted in the form of moisture content was 0.40-0.73 %, ash content was 8.75-10.16 %, volatile content was 35.94-64.48 %, and fixed carbon was 26.78-53.90 %. From the result obtained, the effect of rising temperature and torrefaction time give linier effects toward the product quality. Increased temperature and torrefaction time give enhancement to the calorific value, ash content, and fixed carbon.Keywords: biomass, empty fruit bunches, solid fuel, torrefaction.
Bahan Bakar Padat Dari Pelepah Sawit Menggunakan Proses Torefaksi; Variasi Suhu Dan Ukuran Bahan Baku Susilowati, Susilowati; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Oil Palm Frond can be used as alternative energy source by using torrefaction process. Torrefaction is a pre-treatment process of biomass into solid fuel within temperature range of 200-300oC in an inert condition. This research aims to produce solid fuel from oil palm frond and study the effect of process variabel towards characteristic of solid fuel resulted. Torrefaction of empty fruit bunch was using fixed bed horizontal reactor with temperature (250-300oC) and particle size (5-15 mm). Product quality resulted was calorific value, mass yield, energy yield and proximate (moisture content, ash content, volatile content and fixed carbon). The result obtained for calorific value in range was 19513.82-22684.77 kJ/kg, mass yield was 47.93-71.64 %, and energy yield was 65.09-86.39 %. 17091.03-20697.13 kJ/kg, mass yield was 52.63-84.52% and energy yield was 64.12-99.05%. Proximate analysis resulted in the form of moisture content was 1.81-3.25 %, ash content was 4.54-6.13 %, volatile content was 40.95-63.48 %, and fixed carbon was 28.62-51.53. from the result obtained, the effect of rising temperature give enhancement to the calorific value, energy yield, ash content, and fixed carbon. While the influence of increasing particle size give enhancement to the mass yield, calorific value, moisture and volatiles content. From the result of hypothesis testing using F test showed that Fcalculated was greater than Ftable. This indicates that the data obtained significant influence and according to the resulting model.Keywords: biomass, oil palm frond, solid fuel, torrefaction.