e-Journal UIR (Journal Universitas Islam Riau)
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Analysis of Land Subsidence in Peatlands in the Awareness Area of Pekanbaru, Riau, Indonesia
Get PDFThis study area is administratively located in Parit Indah District, Bukit Raya District, Pekanbaru City, Riau Province. Geographically, the research area is located at coordinates 0° 28' 30.92" N 101° 28' 9.45" E N 0° 27' 25.63" - 101° 29' 47.30" E. The aim of this study was to find out the effect of peat soil types on subsidence. The data collection method in this study was carried out using sieve analysis, water content analysis, specific gravity, subsidence analysis, and soil testing in the laboratory. The effect of peat soil on subsidence has a significant effect between the type of peat and subsidence, the higher the maturity level of the peat, the lower the level of subsidence on peat soil. Based on the results of the study, the soil consolidation test with a depth of 75cm-3m had a soil settlement value of 0.467. It is recommended to do this to reduce the impact of subsidence in the land area such as the research area so that it does not have too much impact on the construction which is carried out by hardening the location using the vertical wick drain method, as well as for building foundations it can be done using chicken claw foundation
Experimental Study Of Improving The Physical Properties Of Peat Soil Using Sand And Bio-Grouting Techniques With The Assistance Of Bacillus Subtilis Bacteria
Get PDFPeat soil was categorized as soft soil, which means that the soil is in bad condition and problematic when construction was built on it. It was necessary to increase the carrying capacity of peat soils, one of which is chemical stabilization of the soil, by adding additives that can react with the soil and using new environmentally friendly methods.
In this study, samples of peat soil were taken from Buana Makmur Village km55, Dayun District, Siak Regency. The stabilizing agent used was sand as much as 5% by weight of dry soil, Bacillus Subtilis bacteria obtained from the Agriculture Laboratory of the Islamic University of Riau, and also CaCL₂ and Urea. The method for stabilizing the physical properties of peat soil in this study is the Bio-Grouting method, testing the physical properties of peat soil follows the procedures of ASTM (American Society For Testing And Materials) and SNI 1965-2008 for testing methods for determining water content for soil and rock in the laboratory. SNI 1964-2008 test method for soil specific gravity, SNI 8460-2017 geotechnical design requirements, SK SNI -04-05-1989-F fine sand used for construction, SNI-02-2801-1998 urea standard. To test the physical properties was carried out by providing variations in the mixing of bacterial cementation solutions with levels of 0% (without treatment), 5%, 10%, 15%, 20%, and 25% and then allowed to stand for 14 days using a tightly closed plastic container.
The results of testing the physical properties of peat soil found that the peat soil was included in the original soil type with water content = 407.45% and specific gravity (Gs) = 1.30gr, while from the physical properties tests carried out the highest water content occurred in the addition of bacterial cementation solution 10% = 177.2% and the lowest specific gravity occurs when the bacterial cementation solution is added 10% = 1.27gr
Numerical Simulation Study of Steam Injection Optimization in Shallow Reservoir
Get PDFIn an EOR project, process improvement must be continually pursued since EOR is often marginally profitable. In steamflood EOR project, steam injection rate is very important parameter to ensure that each pattern reach maturity within a certain early period that result in high oil recovery and meet the economic hurdles. In particularly shallow formation settings, steam injection target is often difficult to achieve because limited by fracturing pressure to avoid breaching the cap rock and creating environmental problem. In this study we simulate steam injection in a typical heavy oil reservoir (high API, shallow depth, low pressure) to enable optimization of steam injection. A model has been built using typical shallow reservoir in using Builder-CMG. Wellan data, fluid model and operating conditions (injection strategy, steam quality) and expected/ forecasted performance. CMOST package is then used to design optimization study by varying the steam injection rate. The best scenario is based on the lowest reservoir pressure and cumulative SOR. We created three development options: regular inverted 7-spot 15.5-acre pattern, horizontal well and pattern size reduction (PSR). From this numerical study it is found that for the case studied, steam injection rate can be ramped up from 250 - 300 BSPD within 6-7 years, followed by peak production. A wind down injection rate to 0 can be used after this peak production to achieve CSOR target of 3-4 bbl of steam/bbl of oil. If a quicker SBT is required, then more steam injectivity is needed to put underground. Several scenarios can be considered as follow: (1) reducing the pattern size (thus adding steam via additional injection wells) and (2) utilizing horizontal wells
Pengembangan Modul Al-Quran Hadits Menggunakan Canva pada Materi Keseimbangan Hidup Dunia dan Akhirat
Get PDFEra Society 5.0 memberikan kemajuan pada manusia untuk berkembang dengan pemanfaatan teknologi yang semakin canggih karena manusia sebagai objek pertama dalam menggunakan teknologi. Perkembangan teknologi harus dimanfaatkan dengan baik oleh pendidik dalam pembelajaran. Penelitian ini berjudul “Pengembangan modul Al-Quran Hadits menggunakan canva pada materi keseimbangan hidup di dunia dan akhirat” bertujuan untuk mengembangkan modul Al-Quran Hadits menggunakan canva pada materi keseimbangan hidup di dunia dan akhirat. Penelitian ini merupakan Penelitian dan Pengembangan (Research and Development) atau sering disebut RND mengunakan metode deskriptif kualitatif dengan model R2D2 (Recursive, Reflective, Design, and Development-Dissemination) yang memiliki tiga fokus utama namun penelitian ini hanya fokus pada desain dan pengembangan. Hasil penelitian ini menghasilkan pengembangan modul Al-Quran Hadits dengan Aplikasi Canva yang berpotensi menjadi media pembelajaran sebagai konten yang menunjukkan dan menjelaskan terkait materi keseimbangan hidup di dunia dan akhirat serta latihan soa
Academic Writing Skills in Islamic Higher Education: Engaging Inquiry-based Learning Methods
Get PDFThe aims of this research is to analyze the effect of the inquiry-based learning method on the academic writing skills of students of the Islamic Religious Education Study Program. This type of research is quantitative with a correlation approach. This study involved 371 samples with data collection techniques using questionnaires and analyzed using the normality test and hypothesis testing which consisted of the T test, one way ANOVA and linear regression. The results of the study indicate that there are differences in the use of the lecturer's inquiry-based learning method and writing skills based on gender, semester and class. There is no difference in the use of the lecturer's inquiry-based learning method and academic writing skills based on the origin of the school and the occupation of the parents. Other results show that there is an influence of the inquiry-based learning method on the academic writing skills of students of the Islamic Religious Education Study Program with a significance value of 0.000. The magnitude of the effect is strong (0.710 or 71%). This study concluded that the inquiry-based learning method had an effect on the academic writing skills of students of the Islamic Religious Education Study Program. This research has implications for the theory of academic writing skills in Islamic Higher Educatio
UJI DOSIS FUNGISIDA BERBAHAN AKTIF PROPINEB DAN WAKTU APLIKASI TERHADAP PERTUMBUHAN (Fusarium oxysporum) SECARA IN VITRO
Get PDFThe aim of this study was to determine the effect of administering a fungicide with the active ingredient propined and the time of application on the growth of Fusarium oxysporum in vitro. The design used in this study was a factorial Completely Randomized Design (CRD) using two factors, the first factor was the dose of fungicide which consisted of 3 levels (F), namely: 700 ppm, 1700 g/l water, and 2.7 g/l water. and the second factor was the time of inoculation which consisted of three levels so that there were 9 treatment combinations with 3 replications, so there were 27 experimental units. Each experimental unit consisted of 2 Petri dish plates which were inoculated and sampled so that there were 54 Petri dish plates. Parameters observed were the effective day of colony formation, colony diameter, conidia length of Fusarium oxysporum, inhibition of growth of Fusarium oxysporum, and macroscopic and microscopic identification of Fusarium oxysporum. If the calculated F is greater than the F table, then the BNJ test is continued at the 5% level. Based on the results of the study, the following can be concluded: treatment interaction with propined concentration and application time affects all observation parameters, where the best treatment is propined concentration of 2700 ppm and concurrent application of propined (F3S2). The main effect of real propined concentration on all observation parameters, the best treatment was propined concentration of 2700 ppm (F3). The main effect of actual application time on all observational parameters, the best treatment was with a propined application (S2)
ANALISIS AGROINDUSRI DAN STRATEGI PENGEMBANGAN GULA AREN DI DESA RAMBAH TENGAH HULU KECAMATAN RAMBAH KABUPATEN ROKAN HULU PROVINSI RIAU
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Palm sugar agro industry can providr an add value to palm sugar producers and overcome labor challenges If the business is managed properly, the purpose of this study is to analysis: the characteristics and profiles of palm sugar producers, palm sugar processing techniques, palm sugar production cost, production, revenue, efficiency, and value added, and make palm sugar marketing strategy. This study used a survey method. The research site was in Rambah Tengah Hulu Village, Rambah District, Rokan Hulu Regency, Riau Province. In this study, 15 producers were selected by snowball sampling. The collected data consisted of primary and secondary data. The method of data analysis used descriptive qualitative analysis and quantitative descriptive. The results showed that the characteristics of palm sugar producers had an average age of 50 years, male gender, 6 years of education level, 10 years of business experience, and the family number of 5 persons. The palm sugar agroindustry was home industry business, private business capital, and labor are come from the family. The process of palm sugar in the research area used simple technology. The cost spent by the producers were Rp. 122,742, revenue Rp. 149,400, profits Rp. 26,658 with an R / C ratio 1.21. The added value obtained from processing palm sugar per process was Rp. 131,400 with a value-added ratio of 87.95%, and a margin value of Rp. 147,400, direct labor income was 0.67%, other input contributions were 10.85%, and profits were 88.46%. Based on the SWOT matrix analysis, it showed that the business was in quadrant I or SO strategy (strengths and opportunities). This strategy shows that the situation is very favorable for entrepreneurs by utilizing their strengths to take advantage of business opportunities
Kualitas Pernikahan Pada Pasangan Muda di Pekanbaru: Penggunaan Media Sosial dan Kematangan Emosi
Get PDFMarriage is an interesting topic to discuss. Uniting two individuals who have different backgrounds, characteristics, and traits that are not the same is not easy in marriage. Divorce rates are always increasing every year making research on marriage is still growing. Today's young couples are young individuals who are active in using social media, so it is very possible that these activities affect household life, especially the marriage process. The purpose of this study was to see how the relationship between social media use and emotional maturity in young couples. This research is a survey research with a quantitative approach with a research scale distribution. The scale used is the scale of social media use and the emotional maturity scale. The research sample consisted of 266 respondents who were young married couples in Pekanbaru City. The results of this study indicate that there is a relationship between the use of social media and emotional maturity. The results of the analysis test using the Product Moment Technique obtained a coefficient value of -0.638 with a sig = 0.000 (p <0.05) so it can be concluded that there is a negative relationship between social media use and emotional maturity in young couples. It can be interpreted that high social media use is associated with low emotional maturity, and vice versa, low social media use is associated with high emotional maturity. Based on the results of the study, it was also found that the use of social media was high and emotional maturity was very low in the research subjects
Media Use and Perceived Academic Performance of Students in Public Universities in Osun State
Get PDFThis study investigated media use and perceived academic performance of students in public universities in Osun State. A cross-sectional survey research design was adopted. The population consists of 38,385 students of public institutions with a sample size of 381 students determined through the Raosoft sample size determinant. Multi-stage random sampling technique was used to select students in the selected institutions in the state. A validated questionnaire was used to collect data. The data collected was analyzed using descriptive and inferential statistics. A reliability coefficient value for each variable in this study was recorded as follows; Media Use (MU) = 0.73; Perceived Academic Performance (PAP) = 0.81. Findings revealed that MU had a significant influence on the measures of PAP; self efficacy R2 = 0.124, F(1,343)= 39.753, p= 0.000, Learning Behaviour R2 = 0.104, F(1,343)= 39.753, p= 0.000. This study concluded that MU significantly influences PAP. The study recommended that students are to employ the right use of media as it will improve and aid their academic goals at all times
Framing Media on the Polemic Omnibus Law in Urban Communities Indonesia
Get PDFThe demonstration occurred because of a form of rejection of one thing done by policymakers in making a regulation that would be implemented as a whole. In addition, demonstrations are also one of the ways that have been arranged to convey g the aspirations that want to be conveyed to a problem. In addition, several articles in the Job Creation Law are being submitted to the Constitutional Court for Judicial Review because they are considered to have legal defects in their discussion, where several laws are considered too partial to state organizers. The public assesses the urgency, where the ratification of the Job Creation Law looks like a rush and a rush, so it lacks input from various parties. Recently, there have been large-scale demonstrations carried out in various regions in Indonesia related to the rejection of the ratification of the Job Creation Law, commonly called the Omnibus Law, or it can be said to be the Sapu Jagat Law. This is due to the large amount of speculation and information that develops in the community, causing a negative sentiment from the public toward the government. By using framing theory, the author found that this negative sentiment arises as a result of defects in public communication conveyed from the government as stakeholders and policymakers and regulations that will be applied to the community. In the end, this negative sentiment caused a very massive impact, namely the increasing national instability