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
 51   52   53   54   55 
Laju Perubahan Moroflogi Sungai Kampar Menggunakan Data Penginderaan Jauh Segmen Rantau Berangin-Bangkinang Hardi Daim; Mudjiatko Mudjiatko; Sigit Sutikno
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

The increase of population growth has caused damaged to Kampar River becoming and also exploitation for human needs. The exploitation came in the for of riverbed material such as sand and gravel for construction needs. The effect of material mining is the erosions that caused the river to be deeper and also the erosions at the cliff that caused the river to be wider thus causing the disposition of river meander. Remote sensing data is needed to identify the magnitude of erosions and sedimentations on Kampar River so that the change in morphology of Kampar River can be identified. Morphology changes on Kampar River can be identified by means of overlaying the digitized map the previous satellite data with the next satellite data. Thus, the research regarding riverbed material mining of Kampar River to identify the changes of morphology on Kampar River using remote sensing technology.This research used satellite data of Landsat-5 TM, Landsat-7 ETM+ and Landsat-8 OLI TRS which were acquired from United States Geological Survey (USGS). Satellite data which were used are 1994, 2000, 2007, 2010 and 2014 data. The result of the research showed that the erosions on 1994 until 2014 was 1.152.115,56 square meters or 115.211 hectares. Meanwhile the sedimentations on 1994 until 2014 was 1.241.084,95 square meters or 124.108 hectares.Keyword : Morphology, remote sensing, landsat, erosions, sedimentations
Simulasi Pola Aliran Pada Bendung Uwai Bangkinang Seberang Kabupaten Kampar Wahyudi, Rioza; Sujatmoko, Bambang; Mudjiatko, Mudjiatko
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Uwai weir which was built on 1938 is located on Bangkinang Seberang, Kampar District. As a result of river containment an inundation area called Embung was formed naturally with nonuniform topography. The distribution of flow velocity is not uniform and causing various flow pattern for every point on Embung Uwai.Flow pattern simulation which is used is qualitative and quantitative. Quantitative simulation based on velocity contour which was generated is divided into return period of 2, 5, and 10 years and by comparing the relation between velocity contour and water depth. Qualitative simulation was observed on water swirl and the flow that occured. The flow pattern generated fom simulation on return period of 2, 5 and 10 years didn’t show any significant different. Flow velocity distribution was compared based on return period of 2, 5, and 10 years. Results obtained was that the highest flow velocity is on section 3 with 0.07 m/s for return period of 2 years, 0.078 m/s for return period of 5 years and 0.08 m/s for return period of 10 years.Keywords : Weir, flow pattern, simulation
Pengaruh Penambahan Serat Polypropylene Terhadap Sifat Mekanis Beton Normal Yuri Khairizal; Alex Kurniawandy; Alfian Kamaldi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

This research studies the mechanical properties of polypropylene concrete consist of compressive strength, modulus of elasticity, splitting tensile strength, flexural strength and deflection. Polypropylene fiber is a kind of plastic fiber that specially produced with high technology. Application of this polypropylene fiber aim to improve the mechanical propertiesof normal concrete. The specimens are cylinder and beam shapes. The variety that use is additional of polypropylene fiber at 0,0 kg/m3, 0,2 kg/m3, 0,4 kg/m3, 0,6 kg/m3, 0,8 kg/m3 and 1,0 kg/m3. The result of research shows that highest compressive strength and modulus of elasticity of concrete occurred at 0,4 kg/m3 polypropylene various. Highest splitting tensile strength and flexural strength of concrete occurs at 1,0 kg/m3 polypropylene fiber various. In generally, deflection test shows improvement within addition of polypropylene fiber. According to the result of research, additional polypropylene fiber into concrete mixture can improve the mechanical properties of concrete, especially compressive strength, modulus of elasticity, splitting tensile strength and deflection of concrete.Keyword : polypropylene fiber, mechanical properties, compressive strength, splitting tensile strength, flexural strength
Perbandingan Kinerja Pilar Jembatan Menggunakan Metode Direct Displacement Based Design Dan Capacity Spectrum Method Ockto Perry P Harahap; Zulfikar Djauhari; Alex Kurniawandy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

The structure usually design base on the elastic analysis that would be multiplied by load factor to simulate the ultimate condition. Actually the behavior of building subject to seismic load are in-elastic. Evaluation to assess inelastic condition of the building during the earthquake are required to obtain assurance that a satisfactory performance . Analysis and performance evaluation can be done with the concept of performance-based seismic design. In this study, there are two performance-based analytical methods used, the method of Direct Displacement-Based Design (DDBD) and Capacity Spectrum Method (CSM). Structures analyzed in this research are the bridge pier with seismic load plan by RSNI 2833:201X. Value of displacement, base shear force, effective time, and damping produced by the method DDBD will be compared with the CSM. Result of analysis by the method of DDBD is the greatest displacement target, that is 0.7304 m, while the displacement by the method of CSM is 0,027 m. Base shear forces (V), results of DDBD, have 265.98 kN smaller than the CSM. However, the effective damping (ξeff) and effective time (Teff), the results of the analysis DDBD, have greater value when compared with the results of the analysis of CSM. Performance evaluation pier structures with DDBD method shows the structures are at the level of that exceed the limit structure stability which indicate that the structure stability has huge risk to collapse in an earthquake. In CSM Method, pillar structure is in Operational category which indicates that there was no structural and non-structure damage on piers when earthquake happened.Keyword : Earthquake, pier structure, Direct Displacement-Based Design, Capacity Spectrum Method, performance
Analisis Sensitivitas Permodelan GR4J Terhadap Pengalihragaman Data Hujan Menjadi Debit Pada DAS Indragiri (Studi Kasus AWLR Lubuk Ambacang) Fauzi Febriansyah; Manyuk Fauzi; Imam Suprayogi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

The aim of study research is to analyze performance of GR4J (Ge'nie Rurala`4parame`tres Journalier) on Indragiri’s Basin. GR4J is one of conceptual model for rainfall-runoff prediction. The method of study research are running using default value and variation of length data for calibration and verification. There are 9 scheme in variation of length data. Input data for this model are daily data of rainfall at the Tanjung Pati station and Sijunjung Station, daily data of evaptranspiration potential which is the result of Cropwat program with input climatology data at Sentajo Station and daily data of discharge observation at Lubuk Ambacang Station for test modeling result. The result show that GR4J performance is better than GR3J performance with X1= 1185,20 mm, X2 = -1,0 mm, X3 = 217,11 mm, and X4 = 1,1 day. Such thing reviewed by assessing the Nash-sutcliffe (R2) and Coefficients Correlation(R) that have better performance. R2 and R parameters in GR4J are 63,44% and 0,61.Keywords:GR4J,calibration, verification, GR3J
Analisis Perbandingan Metode Westergrand Terhadap Metode Desain Langsung Dan Metode Portal Ekivalen Pada Flat Plate Ramadhan, Rian; Djauhari, Zulfikar; Kurniawandy, Alex
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

All this time the analysis and design of plate is often done by using approach method such as Westergrand that commonly used and also use the Direct Design methods and EquivalentFrame methods, this approach method is more often used because it is very difficult to plan a plate with using numerical methods such as finite element method although the results will be more exact. This study aims to determine the comparison between Westergrand method, Direct Design method and Equivalent Frame method, espe cially when applied to the plates that do not have beams such as Flat Plate. This comparison is done in order to see how good this method in terms of ease of calculation, the results of moments, reinforcement and deflection result and in order to see how the behavior of Flat Plate when analyzed using these methods.This research results showed Westergrand method have easier calculation methods when compared to the Direct Design method and Equivalent Frame method but Westergrand method will give a smaller value than the Direct Design method and Equivalent Frame method in terms of moments, reinforcement and deflection. Based on the research results that higher the ratio between long span and short span, the plate behavior will be getting closer to the of one wayaction and corner panel receive the largest proportion of the load from interior and exterior panels.Keyword Plate, Westergrand Method, Direct Design Method, Equivalent Frame Method
Sifat - Sifat Fisik Mortar Geopolimer Dengan Bahan Dasar Campuran Abu Terbang (Fly Ash) Dan Abu Sawit (Palm Oil Fuel Ash) Islami, Aldi Nauri; Olivia, Monita; Saputra, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

This research study about characteristic of physical of mortar geopolimer from blend of fly ash and palm oil fuel ash. Alkaline activator solution used to processed the activation of Silica (Si) and Alumina (Al) which implied in both types of the ash mixture from NaOH 14 M and liquid of natrium silicate (Na2SiO3). Proportion the blended fly ash and palm oil fuel ash ratios of 100:0, 25:75, 50:50, 75:25, and 0:100. Sand to blended ash by mass ratios of 2,75:1. Sampel out 5x5x5 cm on cube geopolymer. This research is used mix with the activator modulus 1,00 and 1,25, activator dosage (%Na2O) 22,5, cured at room temperature at 3 days and heat curedt 110ºC for 24 hours then cured at room temperature for 7 day. Result from this research represents compressive strength the mortar as according to variation blended ash. Compressive strength will mount as according to modulus of activator and activator dose with the correct combination blended ash.Keywords : geopolymer, fly ash, palm oil fuel ash, activator modulus, mix proportions
Pengolahan Limbah Cair Industri Tahu Menggunakan Tanaman Typha Latifolia Dan Eceng Gondok Dengan Metode Fitoremediasi Sungkowo, Toto Heri; Elystia, Shinta; Andesgur, Ivnaini
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Tahu industry is a domestic industry largely do not have sewage treatment units. Wastewater of tahu industry if directly discharged into sewers or water bodies without prior treatmentcan lead environmental pollution. This study aims to look at the ability of phytoremediation system with a combination of plants Typha latifolia and eceng gondok to determine pollutantremoval efficiency parameters, there are: COD of the water eceng gondok plant weight variation, and Hydraulic Loading Rate (HLR), in this study used a plastic tub the size of 50cm x 36cm x 31cm, the soil media with a thickness of 10cm, thickness 5cm media sand and gravel media 5cm thick. Typha latifolia plant density of 1 g / cm2, the weight variation of thewater hyacinth plant (0.5 kg; 1 kg; and 1 kg), and variations HLR (500, 750 and 1000 L /m2.hr). Optimal results were obtained in plants Typha latifolia 1 g / cm2, 1.5 kg heavy watereceng gondok and HLR 500 L / m2.hari COD 200 mg / l with an efficiency of 92.42%.Keywords: Eceng gondok, Hydraulic Loading Rate (HLR), Phytoremediation, Typha latifolia, Wastewater tahu
Uji Toksisitas Akut Effluent Pengolahan Lindi TPA Muara Fajar Terhadap Ikan Mas (Cyprinus Carpiol ) Dengan Metode Renewal Test Novita Faradisha; Shinta Elystia; Elvi Yenie
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

The garbage mixed with rain water will produce leachate. Leachate can be pollution if not treated before being discharged into the environment. The leachate treatment are precipitation process, coagulation-flocculation, sedimentation, and cleaning process. However, effluent of TPA Muara Fajar Landfill was above the standard quality of KEP 51-/MENLH/10/1995 about industrial effluent standard. Therefore research on acute toxicity test of effluent leachate from Muara Fajar Landfil to determine LC50 value and TUa (Toxicity Unit area) value by using renewel test method in 96 hours observation. Testing animal used was goldfish (Cyprinus Carpio L). LC50 value was calculated by probit method which utilized the goldfish mortality and the parameters tested was DO, pH, temperature, COD, and sulfide. The value of LC50 of effluent Muara Fajar Landfill was 3,595% and TUa (Toxicity Unit Area) of effluent Muara Fajar Landfill was 27,81. The results showed that value of effluent could make great acute toxicity. Result show the COD and sulfide leachate of characteristics of Muara Fajar landfill affected goldwish mortality. By the higher concentrations and characteristic by the higher goldwish mortality, which means more toxic the leachate was. By the smaller concentration value and characteristics of leachate by the higher LC50 value, which means the toxicity of the leachate was disminished.Keywords : effluent leachate of muara fajar Landfill, LC50 value, renewal test, toxicity.
Uji Kinerja Bioeraktor Hibrid Anaerob Dua Tahap Pada Pengolahan Limbah Cair Industri Sagu Dengan Variabel Beban Kejut (Shock Loading) Apriadi Rio; Adrianto Ahmad; Amun Amri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

The wider the area of sago palm in Indonesia, the more rapid development of the industry in increasing the production of sago. Industrial production sago produce wastewater with high organic matter content, if discharged directly into the water body will continually degrade water quality and environmental pollution. Thus, needs to be processed with a technology prior to disposal, wastewater treatment technology is a two-stage anaerobic bioreactor hybrid. The purpose of this study is to test the stability and performance of the two-stage anaerobic bioreactor hybrid stone in anticipation of media change suddenly arriving feed flow rate due to the increasing production of sago industry. Hybrid anaerobic bioreactor working volume of two stages used in this study was 10 L in the first bioreactor and 20 L in the second bioreactor. Operation was carried out by giving a shock loads increasing the feed flow rate suddenly by 50%, 100% and 150% for 6 hours in the first bioreactor, and then returned to the first bioreactor flow rate was 5 L/day. The results showed that the two-stage anaerobic hybrid bioreactor stone mediated able to anticipate fluctuations in the production of industrial wastewater discharge sago with the feed flow rate suddenly by 50%, 100% and 150% indicates that the system recovery time of two stage anaerobic bioreactor hybrid was faster with a span of 5 to 6 days. The highest COD removal occurred at shock loads of 100% of 3.750 mg/L.Keywords: Anaerobic , COD Hybrid Anaerobic Bioreactor, Sago Wastewater, Shock Loading, Two Stage.

Page 53 of 315 | Total Record : 3145

 51   52   53   54   55 

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