cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota pekanbaru,
Riau
INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Engineering
Arjuna Subject : -
Articles 3,145 Documents
 295   296   297   298   299 
Pengaruh Penambahan Wollastonite dan Variasi GCC/PCC Terhadap Kekuatan Kertas Dalam Proses Pembuatan Kertas Nurhayati, Nurhayati; Zulfansyah, Zulfansyah; Rionaldo, Hari; Hasudungan, Janso
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Filler is one of component used in papermaking industry to reduce production cost and improve paper properties. Ground Calcium Carbonate (GCC) and Precipitated Calcium Carbonate (PCC) are the most effective filler used in papermaking process. However, high usage of GCC and PCC may decrease paper strength. As an attempt to increase filler application in the papermaking process, wollastonite / calcium silicate is used as an additive to increase filler retention, without reduction in paper strength. The filler modification was done by adding 2% wollastonite per total filler dose. This study will evaluate the effect of adding wollastonite on filler retention and paper strength at filler doses of 21, 23 and 25% with variations in the percentage composition of PCC / GCC from 100/0, 90/10, and 80/20. The addition of wollastonite to filler with the resulted in increasing filler retention and no significant change in tensile index. Basis weight and thickness also showed stable values. The best filler retention obtained at 23% filler dose, with filler composition of 90% PCC 90% and 10% GCC, which resulted in 99% filler retention of the total filler dose added. The addition of 2% wollastonite in paper-making process will increase filler dose from 21% to 23%, which reducing fiber usage, therefore it the addition of wollastonite has the potential to reduce raw material costs by 5.8 USD / ton.Keyword : Filler, Filler retention, PCC, GCC, Wollastonite
Pengujian Desalinasi Surya Tipe Single Basin Double Slope Kemiringan 45° Dengan Porositas Sumbu Serap 0,20 mm Pada Kapasitas 8 Liter Fikri Fahlevi Nasution; Awaludin Martin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Due to the very rapid population growth, the need for clean water will continue to increase year by year. This makesthe availability of clean water a major issue today, especially for coastal people. Coastal residents have to buy cleanwater in their daily lives, and coastal residents also use rainwater. However, the availability of clean water still existsin nature. In the dry season, it is very difficult to get clean water. One solution to this lack of clean water is to obtainclean water by desalination. Desalination of seawater is the process of maintaining clean water by removing excesssalt from the water and using sunlight to create freshwater. This study describes an experimental study of theefficiency of solar desalination plants using solar energy. The experiments was performed with a sponge pore size of0.2 mm and an initial volume of 8 liters. With an average solar radiation of 719.9 W/m2, the desalinated air producedis 2.944 kg and the efficiency is 25.15%.Keywords : Solar Desalination, Porosity, Sponge
Evaluasi Dan Proyeksi Kebutuhan Pengembagan Terminal Penumpang Bandar Udara Internasional Sultan Syarif Kasim II Pekanbaru, Provinsi Riau Tahun 2020-2035 Habiburrahman, Jundi; Sandhiyavitri, Ari; Djuniati, Sri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sultan Syarif Kasim II International Airport is located in Pekanbaru City, Riau Province, has an area of the existing of 29,000 m2 with a capacity of 3.5 million passengers per year. Because passenger growth occurs every year, this will cause the passenger capacity will not be able to serve the needs of passengers in 2035. This study aims to evaluate and make projected plans for passenger terminal needs (2020-2035). The projection application uses linear regression statistical methodology. Passenger volume is used as dependent variable while the total population (Pdd) and per capita PDRB on the basis of constant prices in 2010 (Pkt) Riau Province as the independent variable with the help of SPSS version 25.00 and Microsoft Excel. Then the resulting population (Pdd) has a greater effect on the growth of domestic passengers. Based on KM Number 3 of 2008 concerning the Master Plan for the Airport (RIB) of Sultan Syarif Kasim II, it is necessary to develop this airport in the future. Based on RIB and this research, it is projected that the need for the terminal building area is 54,385 m2 (2035) with a capacity of 6.2 million passengers per year. Keywords: Evaluate, Passenger Terminal, Linier Regression, Develop
Kuat Tekan Dan Porositas Beton Pcc Menggunakan Crumb Rubber Dan Abu Sekam Padi Dengan Air Gambut Sebagai Mixing Dan Curing Water Arief Rijaldo Fajri; Monita Olivia; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study investigates the effect of peat water used on concrete with crumb rubber and rice husk ash as a mixing and curing water. The tests carried out were compressive strength and porosity for 28 days of curing. PCC concrete and PCC with crumb rubber and rice husk ash (PCC-CR-RHA) mixed and cured by clean water as a control, while the other variation were PCC-Peat and PCC-CR-RHA-Peat that are mixed and cured by peat water. PCC-CR-RHA concrete contains 5% of crumb rubber from mass of fine aggregate and 10% of rice husk ash from mass of cement. The results showed that the average compressive strength of both PCC and PCC-CR-RHA with clean water at 28 days were 35,43 MPa, while peat concrete were 16,1% lower with value at 29,72 MPa. The porosity of the specimens with clean water were 10,4% lower than the specimens with peat water. PCC-CR-RHA concrete with peat water had 90% of compressive strength (f’c) and more durable on peat water than PCC concrete showed by porosity test. The results of tests indicated that peat water can be used for mixing and curing water on PCC-CR-RHA concrete.Keywords : Peat water, crumb rubber, rice husk ash, compressive strength, porosity, rigid pavement, peat soil
Rancang Bangun Sistem Monitoring Bimbingan Skripsi Berbasis Web Sirait, Andrio Pratama; Nasution, Salhazan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Application based on computer nowadays growth so fast on every scope. Every institute trying to improve research quality by using application based on website or mobile phone. Thesis is a term in Indonesia to describe scientific work as one of the requirements for a bachelor's degree including department of electrical engineering, University of Riau. On its way, department of electrical engineering face into some problems on the process of student thesis guidance. First problem is student and lecturer are hard to find a schedule for thesis guidance meet. Second problem is lecturer experience difficulty to monitor every students thesis progress, all this time monitoring is done manually by writing note. Third problem, thesis coordinator experience difficulty to make a recapitulation because thesis coordinator have to collect all note from the lecturers to knowing student’s thesis progress. Based on these three problems, author decide to make an application that will solve these three problems.Keywords: Student’s thesis progress monitoring, Student’s thesis online guidance, Student’s thesis development
Analisis Kualitas Sifat Fisik Kertas Dengan Penambahan Kalsium Silikat Pada Kertas Mengandung Filler PCC & GCC Gabriella Carissa Putihardjo; Zulfansyah Zulfansyah; Hari Rionaldo; Janso Hasudungan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Filler is one of paper component inside paper made in paper industry and nominated as number two biggest component in paper. In order to reduce over basis weight problem in one of paper industry, a research about filler modification using calcium silicate is held. The purpose of the research is to observe the effect of calcium silicate addition and it’s optimum dosage in paper making process. Lab trial showing that adding the calcium silicate on 70 gsm copy and offset paper making process show that even with filler content increment, calcium silicate help to maintain paper grammage and thickness. Where for the copy paper paper thickness at filler 23% without calcium cilicate addition is 123 mm and with addition of calcium cilicate 1% dan 2% dosage, paper thickness become 129 mm. For offset paper paper thickness at filler 23% without calcium cilicate addition is 123 mm and with addition of calcium cilicate 1% dan 2% dosage, paper thickness become 124 mm.Keywords: Paper Making, Filler, PCC, GCC, Calcium Silicate, Paper Thickness.
Karakteristik Sifat Mekanis Dan Fisik Tanah Lunak Di Kota Dumai Berdasarkan Pengujian Dokenbo Dan Vane Shear Muhammad Naufal; Muhamad Yusa; Ferry Fatnanta
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Soft soil has low shear strength and high compressibility. In this study, portable tools i.e. Dokenbo tool and field Vane Shear were used to determine mechanical characteristics of soft soil quickly and cheaply. Dokenbo is a relatively new field method, developed by the National Institute of Civil Engineering in Japan, to measure shear strength of soft soil. Obtained parameters from Dokenbo are penetration and torsion. This study aimed to determine range of shear strength values from both methods. Correlation of mechanical properties from Dokenbo and Vane Shear was also analyzed. Likewise, correlation between Dokenbo results and soil physical properties. The test was carried out at 3 points field test in Lubuk Gaung Village, Dumai City. From the research, it was obtained that the type of soil was soft soil based on the value of shear strength (Su) with a range of 12-25 kPa. Soil consistency based on the value of penetration resistance is moderately stiff with a value range of 500-1000 kN/m2. Statistical analysis show that penetration value is directly proportional to the Su value, if the penetration value is large, the Su value also increases. Penetration and internal shear angle has a very low correlation. While there is low correlation between penetration and physical properties, where there is no good data connection. Keywords: Soft soil, Shear Strength, Dokenbo, Vane Shear
Aspek Rancangan Miniature Automatic Drying Clothes Dengan Gsm Notifikasi Rifki Saputra; Indra Yasri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Geographically, Indonesia is located on the equator which has two seasons, namely the rain season and the dry season. In the dry season, the sun's heat is needed for various needs, one of these is to drying wet clothes. The drying process cannot be monitored directly. Therefore, an automatic clothesline system was designed. This design uses Arduino Uno as a microcontroller. Light Dependent Resistor (LDR) sensor and rain sensor are used as inputs of this design. DC motor is applied to run the clothesline automatically. The notification in this design uses the GSM Module in the form of a short message and sent to the user.Keywords : Arduino Uno, LDR Sensor, Rain Sensor, GSM Module, Automatic clothesline
Konsentrasi Silika (Si) Dalam Debu Jatuh Di Area Pabrik Pengolahan Kelapa Sawit PT. Z Annisah Muslimah; Hafidawati Hafidawati; Edward HS
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT. Z is the palm oil processing mill that utilizes solid waste of palm shells and fiber as boiler fuel. This process will produce particulate emissions, one of which is dustfall which contains Silica (Si) because more than 50% of the constituent elements of boiler are Silica. Dustfall sampling implemented by using dustfall collector based on SNI 13-4703-1998, for the calculation of silica concentration is based on Atomic Absorption Spectrofotometry result. The result indicated that Silica concentration at several points had exceeded the threshold value from Per.13/Men/X/2011 which is 10 mg/m3 with the amount of result is 9,75 – 11,47 mg/m3. This is due to the location of fiber collection which is not far from the sampling location.Keywords: Dustfall, palm oil mill, silica
Analisis Kebutuhan Air Domestik Daerah Aliran Sungai Kampar (Studi Kasus: Pos AWLR Danau Bingkuang) Al-Khani, M. Rizki; Fauzi, Manyuk; Lilis, Yohanna
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Watershed Kampar AWLR Danau Bingkuang (DAS) is a watershed located in the Kampar Regency. The watershed Kampar AWLR Danau Bingkuang has an area of 669.99 km2. Water resource problems occur during the dry season, this watershed experiences drought, while in the rainy season the water discharge will increase and cause flooding. The population in the Kampar river basin has increased every year. This increase in population also increases the amount of domestic water demand. In 2010 domestic water demand was 25,157.6 m3/day, in 2019 it was 34,398.9 m3/day. Meanwhile, the projection for domestic water demand in the next 20 years is 54,935.11 m3/day. Keywords: Danau Bingkuang, Watershed, Domestic Water Needs

Page 297 of 315 | Total Record : 3145

 295   296   297   298   299 

Filter by Year

2014 2022


Reset
Filter By Issues
All Issue Vol 9 (2022): Edisi 1 Januari s/d Juni 2022 Vol 8 (2021): Edisi 2 Juli s/d Desember 2021 Vol 8 (2021): Edisi 1 Januari s/d Juni 2021 Vol 7 (2020): Edisi 2 Juli s/d Desember 2020 Vol 7 (2020): Edisi 1 Januari s/d Juni 2020 Vol 6 (2019): Edisi 2 Juli s/d Desember 2019 Vol 6 (2019): Edisi 2 Juli s/d Desember 2019 Vol 6 (2019): Edisi 1 Januari s/d Juni 2019 Vol 6 (2019): Edisi 1 Januari s/d Juni 2019 Vol 5 (2018): Edisi 2 Juli s/d Desember 2018 Vol 5 (2018): Edisi 2 Juli s/d Desember 2018 Vol 5 (2018): Edisi 1 Januari s/d Juni 2018 Vol 5 (2018): Edisi 1 Januari s/d Juni 2018 Vol 5, No 1 (2018): Wisuda April Tahun 2018 Vol 5, No 1 (2018): Wisuda April Tahun 2018 Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017 Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017 Vol 4, No 1 (2017): Wisuda Februari Tahun 2017 Vol 4, No 1 (2017): Wisuda Februari Tahun 2017 Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016 Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016 Vol 3, No 1 (2016): Wisuda Februari Tahun 2016 Vol 3, No 1 (2016): Wisuda Februari Tahun 2016 Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015 Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015 Vol 2, No 1 (2015): Wisuda Februari Tahun 2015 Vol 2, No 1 (2015): Wisuda Februari Tahun 2015 Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014 Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014 Vol 1, No 1 (2014): Wisuda Februari Tahun 2014 Vol 1, No 1 (2014): Wisuda Februari Tahun 2014 More Issue