e-Journal UIR (Journal Universitas Islam Riau)
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Characteristics of Kedondong Trass and Bobos Trass as Cement Raw Material, Cirebon, West Java, Indonesia
Get PDFThe use of cement materials in construction continues to increase every year, consumes lots of raw material and emits CO2 from clinker production. To eliminate this negative effect, alternative materials are needed. Trass is natural pozzolan which is formed from silica-alumina rich volcanic rocks. As supplementary cementitious material, trass is sufficiently durable and reduce clinker proportion in cement mixture, thus more environmentally friendly.
This research aims to determine characteristics and composition of Kedondong trass and Bobos trass, Cirebon, West Java as raw material for pozzolan cement. The study was conducted using petrography and XRD analysis to determine mineralogy of rocks. XRF analysis was carried out to determine chemical composition as well as other tests to determine trass quality.
Kedondong trass is originated from andesite intrusion and andesitic breccia, while Bobos trass is formed from hypersthene-andesite intrusion. Based on mineralogy analysis, trasses have similar mineral composition consist of plagioclase, quartz, pyroxene, hornblende, and sanidine. XRD analysis shows abundance of cristobalite and tridymite from each samples. This mineralogy is confirmed by geochemistry result, which is the samples contain more than 70% SiO2 + Al2O3 and less than 4% SO3. Other chemical characteristics that have been tested are moisture content, ignition loss, and clay content in which all of those parameters meet the industrial standard for cement material
Residual Strength Parameter Method for Slope stability on a Toll Road with Expansive Clay
Get PDFThe decreasing stability phenomenon needs to be considered during the design of cut slopes on problematic soil. Excavation slope of toll road construction tends to fail when it lies above clay-shale strata. Certain common correlations and ordinary analytical methods are not recommended for safety calculation. This study is intended to find out the characteristic of clay-shale and proper slope inclination design on Semarang Batang Toll Road. The behaviour of a clay-shale area on the cut slope of Batang-Semarang toll road segment STA 438+000–STA 439+000 was identified. The degradable and expansive properties caused slope failure of the initial design with an inclination of 1 H: 1 V. Laboratory tests found that the soil had a clay faction > 40% and can be categorized as high plasticity (LL > 50%). An empirical approach determined that the residual shear strength decreased to phi < 6 degrees. To describe the swelling after the excavation stage, the flow deformation was determined by a finite element simulation. During the swelling phase, the pore water pressure was maintained at a certain value, and a gentler slope fulfilled the minimum safety factor with an inclination of 1 V: 3 H. Furthermore, the shear strength of the clay-shale was reduced to that for a fully softened material, and all the slope factors for safety moved to a critical state. According to the simulation, the minimum suggested slope inclination is 5 H: 1 V. This approach is important for the maintenance of pore water pressure and the prevention of an additional reduction in the shear strength so as to avoid slope failure on clay-shale regions in the yielding stage
Analisis Pola Penjualan Barang Teknologi Informasi (TI) Menggunakan Algoritma FP-Growth
No full textDetermination of sales patterns is very important in marketing. Sales pattern serves to conduct an effective analysis in improving marketing. Sales analysis aims to explore new knowledge that can help design effective strategies by utilizing sales transaction data. This study processes sales data for 12 transaction days containing 47 items using the Fp-Growth algorithm. The results of this study are items with a minimum value of support > 0.10 and confidence 0.60 and will be compared with testing data using RapidMiner to test whether the results are valid so that the test results can help in designing sales strategies.Penentuan pola penjualan sangat penting dalam pemasaran. Pola penjualan berfungsi untuk melakukan analisis yang efektif dalam meningkatkan pemasaran. Analisis penjualan bertujuan untuk menggali pengetahuan baru yang dapat membantu merancang strategi yang efektif dengan memanfaatkan data transaksi penjualan. Penelitian ini mengolah data penjualan selama 12 hari transaksi yang berisi 47 item dengan menggunakan algoritma Fp-Growth. Hasil dari penelitian ini adalah item dengan nilai minimal support > 0.10 dan confidence 0.60 dan akan dibandingkan dengan data pengujian menggunakan RapidMiner untuk menguji apakah hasil tersebut valid sehingga hasil pengujian tersebut dapat membantu dalam merancang strategi penjualan
Tips dan Trik Menghadapi Soal-Soal Bahasa Inggris Ujian Nasional SMA/SMK
Get PDFProgram Pengabdian kepada Masyarakat Tips and Trik Menghadapi Soal-Soal Bahasa Inggris Ujian Nasional SMA/SMK bertujuan untuk mempersiapkan siswa-siswa kelas XII SMA/SMK di SMA dan SMK Islam Sudirman Kedungjati, Grobogan dalam menghadapi soal-soal Bahasa Inggris UN 2018. Metode yang digunakan yakni simulasi dan pembahasan soal-soal Bahasa Inggris beserta tips dan trik untuk menyelesaikan soal-soal tersebut. Program Pengabdian kepada Masyarakat ini dilakukan di SMA Islam Sudirman dan SMK Islam Sudirman Kedungjati, Grobogan, Jawa Tengah dalam jangka waktu satu bulan. Dari hasil kegiatan ini didapatkan perubahan yang signifikan sebelum dan sesudah dilakukan treatment. Hal ini dilihat dari perbandingan nilai rata-rata pre-test dan post test. Di SMK Islam Sudirman diperoleh nilai rata-rata pre-test adalah 30, 64, sementara pada nilai post-test diperoleh 40.39, sehingga terjadi kenaikan 9.76 atau 38.99%. Di SMA Islam Sudirman diperoleh nilai rata-rata pre-test adalah 26.73 dan pada post test diperoleh nilai rata-rata 30.06 dengan kenaikan 3.33 atau 14.03%. Diharapkan dari program ini adalah siswa-siswa SMK dan SMA Islam Sudirman dapat mempersiapkan Ujian Nasional secara lebih baik dan lebih dini
Pemanfaatan Tanaman Obat Keluarga (TOGA) Berbasis Mangrove di Desa Sungai Rawa Kecamatan Sungai Apit Kabupaten Siak
Get PDFKegiatan penguatan kapasitas ibu rumah tangga dalam pemanfaatan tanaman obat keluarga (TOGA) berbasis mangrove di Desa Sungai Rawa Kecamatan Sungai Apit Kabupaten Siak. Berdasarkan observasi di lapangan diketahui bahwa beberapa ibu rumah tangga telah menanam TOGA, namun demikian jumlah TOGA yang ditanam jumlahnya terbatas. Sebagian dari mereka telah mengetahui khasiat TOGA dan secara teknis juga telah mampu mengolah TOGA, namun demikian mereka belum memahami khasiat TOGA secara ilmiah. Metoda pelaksanaan kegiatan ini berupa bimbingan teknis dengan teknik penyampaian ceramah yang digunakan untuk menyampaikan materi tentang TOGA serta demonstrasi yang digunakan untuk menunjukkan cara mempraktekkan budidaya TOGA serta pegolahannya menjadi ramuan obat keluarga. Kegiatan ini telah terlaksana dan berhasil dengan baik. Hasil pelaksanaan kegiatan dapat dicermati antara lain meningkatnya pengetahuan para ibu rumah tangga melalui pemahaman tentang aneka jenis tanaman obat berbasis mangrove. Keterampilan penanaman dan pengolahan tanaman obat menjadi minuman kesehatan yang dapat diharapkan meningkatkan mutu kesehatan keluarga. Kegiatan ini tergolong berhasil karena terjadi peningkatan pengetahuan peserta kegiatan, sebagian besar peserta menunjukkan ketrampilan yang memadai pada saat melakukan demonstrasi praktik langsung mulai dari pembuatan media tanam, penanaman, hingga pemeliharaan tanaman obat berbasis mangrove pada lahan pekarangan di Desa Sungai Rawa Kecamatan Sungai Api
Pelatihan Pemantapan Penguasaan Bahan Ajar IPA Terintegrasi Nilai-Nilai Al-Qur’an Pada Guru-Guru SD Kab. Indragiri Hulu
Get PDFIlmu Pengetahuan Alam merupakan ilmu yang memiliki karakteristik berbeda dengan ilmu yang lain yakni mengandung ayat-ayat Qauniah dan ayat-ayat Qauliyah sehingga butuh skill dan bahan ajar tersendiri dalam mentransfer ilmunya. Namun demikian pelaksanaan proses pembelajaran yang dilakukan guru-guru SD IPA masih bersifat parsial dengan hanya mengutamakan target capaian ayat-ayat Qauniah semata (aspek kogitif IPA) sehingga aspek qauliyah terutama sikap islami terabaikan, disamping itu memang masih kurangnya bahan ajar IPA yang terintegrasi nilai-nilai Alqur’an yang bisa dijadikan i acuan bagi guru-guru SD. Sebagai solusi terhadap permasalahan tersebut maka guru-guru SD perlu dibekali melalui suatu pelatihan pemantapan penguasaan bahan ajar IPA terintegrasi nilai-nilai alqur’an agar dapat diaplikasikan kepada peserta didik
Pelatihan Pembelajaran Daring Melalui Platform Google Pada Guru SMA Seri Rama Pekanbaru
Get PDFPengabdian masyarakat bertujuan untuk memberikan pelatihan kepada guru yang ada di SMA Seri Rama Pekanbaru yaitu bagaimana menggunakan platform google untuk mempermudah melaksanakan pengajaran kepada siswa selama masa pandemi covid 19 ini. Metode yang dilakukan adalah ceramah tatap muka langsung dengan guru-guru, serta praktek langsung dengan membawa perangkat laptop dari peserta. Hasil kegiatan ini hampir seluruh guru belum menggunakan media Google seperti Google Classroom, media tatap muka online seperti Google Meet, serta Platform Google lainnya. Guru-guru hanya menggunakan media WA untuk melaksanakan pengajaran. Seperti absensi, materi pengajaran, membuat tugas, dan kegiatan lainnya hanya melalui WA sehingga pengajaran menjadi tidak efektif. Hal ini karena kurangnya pemahaman guru pada perangkat platform ini karena pihak sekolah tidak melakukan pelatihan kepada guru-guru untuk menggunakan media online Google untuk melakukan pengajaranPengabdian masyarakat bertujuan untuk memberikan pelatihan kepada guru yang ada di SMA Seri Rama Pekanbaru yaitu bagaimana menggunakan platform google untuk mempermudah melaksanakan pengajaran kepada siswa selama masa pandemi covid 19 ini. Metode yang dilakukan adalah ceramah tatap muka langsung dengan guru-guru, serta praktek langsung dengan membawa perangkat laptop dari peserta. Hasil kegiatan ini hampir seluruh guru belum menggunakan media Google seperti Google Classroom, media tatap muka online seperti Google Meet, serta Platform Google lainnya. Guru-guru hanya menggunakan media WA untuk melaksanakan pengajaran. Seperti absensi, materi pengajaran, membuat tugas, dan kegiatan lainnya hanya melalui WA sehingga pengajaran menjadi tidak efektif.Hal ini karena kurangnya pemahaman guru pada perangkat platform ini karena pihak sekolah tidak melakukan pelatihan kepada guru-guru untuk menggunakan media online Google untuk melakukan pengajara
The validity of D-MENBOLA: Digitalization of football learning media based on articulate storyline 3
Get PDFThe COVID-19 pandemic has an impact on the learning process in all educational units, including higher educational units. This situation requires educators to be more creative and innovative in using learning media to transform knowledge and skills to their students. This study aims to describe the validity of interactive learning media based on articulate storyline 3 in the theory and practice of football coaching. This research included development research by adopting the ADDIE (Analysis, Design, Development, Implementation, Evaluation) model. The data collection instrument used a questionnaire that referred to the LORI (Learning Object Review Instrument) standard. The LORI standard consists of nine aspects of assessment, namely content quality, direction of learning objectives, feedback and adaptation, motivation, display design, interaction use, accessibility, development capabilities, and standard fulfillment. The data analysis technique used is descriptive quantitative and qualitative. The results showed that the level of feasibility/validity of the learning media named D-MENBOLA or digitalization of football learning media based on articulate storyline 3 iss declared very feasible/very valid. Based on these result, D-MENBOLA can then be used in the theory and practice of football coaching as one of the innovative learning media
EVALUASI TUGAS CAMAT DALAM MELAKUKAN PEMBINAAN PEMERINTAHAN DESA DI KECAMATAN LUBUK BATU JAYA KABUPATEN INDRAGIRI HILIR
Get PDFThe research objective was to determine the results of the camat's assignment in fostering village governance in Lubuk Batu Jaya Subdistrict, Indragiri Hulu Regency. This is to find out the obstacles to the task of the sub-district head in fostering village governance in Lubuk Batu Jaya Subdistrict, Indragiri Hulu Regency. This type of descriptive research uses a quantitative approach with a population of 23 people, community leaders, village heads and camat office employees. Data collection was carried out by means of interviews, questionnaires, documentation and observation, all data collected were grouped by type and analyzed descriptively and conclusions could be drawn from the research results. Based on the results of the study, it was found that the evaluation of the sub-district head's duties in conducting Village Government Development in Lubuk Batu Jaya District, Indragiri Hulu Regency was in the quite good category, due to the five research indicators, namely providing guidance, giving direction, providing education and training, giving instructions and literature or the manual has been implemented. The inhibiting factor for the guidance carried out by the sub-district head to the village government is that the guidance carried out by the sub-district head has not been carried out routinely, the direction is given to the sub-district head only if the village apparatus experiences problems in the work process, and the sub-district head does not provide education and training every month, the sub-district head only provides guidance if he receives a report. village government task constraints
APLIKASI BIOCHAR SEKAM PADI DAN BAKTERI PELARUT FOSFAT Paenibacillus sp. PADA TANAMAN CABAI MERAH (Capsicum annum L) DI MEDIUM ULTISOL
Get PDFRed chili is a commodity that must be developed in the Riau, which is mostly ultisol soil. Rice husk biochar as an ameliorant can increase plant growth. Also the bacteria Paenibacillus sp. can solubilize unavailable phosphate to become available for red chili plants. This study aimed to know the best doses between the combination of rice husk biochar and phosphate solubilizing bacteria Paenibacillus sp. on the growth of red chili plants. The study was conducted at the experimental farm of the Faculty of Agriculture, the University of Riau from January to May 2021, using non-factorial and randomized completely design, then tested with Duncan's new multiple range test (DNMRT). The combination factor is rice husk biochar and phosphate solubilizing bacteria Paenibacillus sp.: 0 g/polybag + 0 ml (B1); 0 g/polybag + 15 ml (B2); 0 g/polybag + 30 ml (B3); 0 g/polybag+ 45 ml (B4); 210 g/polybag + 0 ml (B5); 210 g/polybag + 15 ml (B6); 210 g/polybag + 30 ml (B7); 210 g/polybag + 45 ml (B8); 420 g/polybag + 0 ml (B9); 420 g/polybag + 15 ml (B10); 420 g/polybag + 30 ml (B11); and 420 g/polybag + 45 ml (B12). Parameters observed were plant height, stem diameter, number of branches, number of leaves, leaf width, number of flowers, and root dry weight. The results showed that the combination of 420 g/polybag rice husk biochar and 45 ml bacteria Paenibacillus sp. affected both the vegetative and generative growth of red chili plants.